HYDROLOGIC DATA REPORT VOLUME II - SURFACE WATER AND STREAMFLOW DATA WATER YEAR 2024 Revision 2, 11/13/2024 Picture #1 (70507), South Mountain Fan Photo Date: June 6th, 2024. PREFACE This publication presents the surface water data collected by the Flood Control District of Maricopa County's automated water-level gage network. This telemetered network is located primarily throughout Maricopa County, Arizona with additional gages in Yavapai, Pinal, Yuma, and La Paz Counties. This is the 31st annual water data report published by the District. Annual reports are available for Water Years 1994 – 2024. The surface water data contained in this report were collected, compiled, and edited by the Flood Warning Branch of the Flood Control District. Data include mean daily, total, maximum and minimum discharges at the flow sites; mean daily, maximum, and minimum pool levels at the storage locations; and mean daily, maximum, and minimum volumes stored at the storage locations. Additional graphics are provided for the user to help put the data into context with historic records at the gage. Disclaimers: 1. Flood flow frequency estimates, whether computed in-house or cited from FEMA floodplain studies, are provided for informational purposes only and should not be considered for regulatory purposes. 2. The information contained herein is as accurate and complete as possible within the limitations of real-time data collection technology currently available. Wherever possible, notes have been included to identify questionable data. Reliance upon the accuracy, reliability, and authority of this information is solely the responsibility of the user. 3. Mention of any products, companies, or specific brand names in this report does not constitute endorsement of those companies or products. Revisions to any of these data for any reason will be published in the following years’ reports in an appendix to the report. Printed copies of this report may be requested and purchased from: Flood Control District of Maricopa County 2801 W. Durango Street Phoenix, Arizona 85009 (602) 506-1501 Or downloaded from: https://www.maricopa.gov/759/Publications ii TABLE OF CONTENTS Preface .................................................................. ii Table of Contents ...................................................... iii Introduction............................................................. iv Data Collection ......................................................... v - viii Definition of Terms .................................................... ix – xii Station Location Map .................................................. xiii New Installations in Water Year 2024 ............................... xiv Revisions to Previous Reports ........................................ xiv Stations Included in this Report ..................................... xv – xx Summary of Significant Streamflow Events ........................ xxi Max Flow Events for Water Year 2024 ............................. xxii – xxiii Data Presentation ...................................................... xxiv Station Data Pages ..................................................... 1 – 948 iii INTRODUCTION The Flood Control District of Maricopa County (FCDMC or District) collects a large amount of data pertaining to surface water runoff in and around Maricopa County. Stations report data to the main database at least 4 times daily, even if the data is zero (no flow.) During runoff events, data are transmitted to the database more frequently, as water levels rise and fall. The District makes its data available to the public in several useful ways. This annual report is but one manner. Additionally, current and raw/analyzed data are available in real-time from the District’s flood warning web site. Historic data are also available from individual stream or dam/impoundment web pages. This report includes records on discharge at stream gages and at flood control storage structures. The count of sensors and stations is: Table 1: Station / Sensor Distribution Total Stations reported in this Report Total Sensors deployed Sensors on Streams Sensors on Impoundments Stage only sites Sites with multiple water-level sensors Status Sensors 205 217 137 68 7 3 5 Stream and impoundment gages are installed for various needs. For District-owned channels, dams, and basins, ALERT gages are placed to monitor flow in channels, and impoundment behind dams to satisfy regulatory requirements. Additional stations are installed in response to local agency requests, current or future flood control project needs, public safety needs, and elsewhere as needed. iv DATA COLLECTION This is the 30th annual surface water report published by the District. Prior to water year 1994, surface water data collected by the FCDMC ALERT System were not quality controlled, and therefore, not published. Furthermore, remote sites did not send zero flow information and only transmitted during runoff events. Nevertheless, limited data are available prior to water year 1994 for stations that existed before October 1, 1993. Unfortunately, there is no available data for dates prior to October 1, 1987, even if the station existed prior to this date. The data are collected as a depth of flow in feet (aka stage). The discharge and/or volume is then obtained by applying the stage to a rating curve of stage versus discharge in cubic feet per second (cfs), or stage versus volume in acre-feet (ac-ft). The discharge rating curves have been developed at stream gages by using fieldsurveyed cross sections for use in an HECRAS step-backwater computer model to obtain a range of stage versus discharge points to be plotted on a curve. These stepbackwater ratings are refined whenever possible using direct and/or indirect measurements made at or near the gage site. For flood control storage structures, discharge ratings were obtained in one of two ways. First, the design ratings may be used. In most cases however, the discharge rating curves were developed by application of the Federal Highway Administration’s HY-8 computer model for culvert flow and U.S. Geological Survey methods for weir flow over the uncontrolled emergency spillways. The storage rating curves were obtained from published As-Built or construction plans or developed from digital elevation data. Daily mean discharges are computed by applying the daily mean stages (gage heights) to the stage-discharge curves or tables. A similar computation is done for storage facility volume. The minimum and maximum values are based on instantaneous discharge or volume readings and the volumes for discharge stations are based on accumulations of daily means. All data in this report have been reviewed and edited to provide the most accurate data possible. A blank or blanks, represented with ---, within the data set is an indication that data were lost either due to hardware, software, or radio problems, or that the gage had not yet been installed. Where possible, these data are flagged with footnotes describing the time the gage was down. In the event that published records require revision, revisions are printed in later reports. Listed in the heading for each gage where records have been revised are all the reports in which revisions have been published for the station and the water years to which the revisions apply (e.g. WY1999: WY1994-95 means that the data for Water Years 1994-1995 were revised in the report for Water Year 1999). Revisions will be published in an appendix to the annual report. v Several streamflow gages are operated cooperatively between the FCDMC and the United States Geological Survey (USGS). There are several USGS cooperative sites that also house a District ALERT gage. Additionally, there are several continuous USGS gages that do not have a District ALERT gage at the USGS site. Also, as part of our cooperative agreement, the USGS maintains a number of peak-only stations (noncontinuous) that only report an annual maximum. Tables 2 and 3 on the following pages show the USGS gages, along with any associated District gage as well. vi Table 2: USGS Continuous Stations, WY 2024 USGS Station Name USGS Station ID Indian Bend Wash at Curry Road nr Tempe 09512162 Location Lat/Long DD MM SS 33 26 25 / 111 54 52 FCD Gage Salt River at Priest Drive nr Tempe 09512165 33 26 22 / 111 57 37 Yes, ID #67307 Cave Creek below Cottonwood Creek 09512280 33 53 14 / 111 57 12 Yes, ID #20707 New River near Rock Springs 09513780 33 58 27 / 112 05 54 No Skunk Creek near Phoenix 09513860 33 43 45 / 112 07 09 Yes, ID #65807 Gila River at Estrella Parkway nr Goodyear 09514100 33 23 15 / 112 23 30 Yes, ID #83807 Hassayampa River near Morristown 09516500 33 53 06 / 112 39 41 Yes, ID #45507 Hassayampa River near Arlington 09517000 33 20 50 / 112 43 30 No Centennial Wash at SPRR near Arlington 09517490 33 18 37 / 112 52 52 Yes, ID #24707 No Table 3: USGS Annual Peak Stations, WY 2024 USGS Station Name USGS Station ID 09488650 Location Lat/Long DD MM SS 32 50 30 / 112 15 04 Vekol Wash at I-8 Yes, ID #74507 Tortilla Creek at Tortilla Flat 09501300 33 31 38 / 111 23 13 No Camp Creek near Sunflower 09510170 33 45 35 / 111 29 44 No Rock Creek near Sunflower 09510180 33 43 49 / 111 30 28 No Indian Bend Wash at Shea Boulevard 09512090 33 35 05 / 111 58 10 Yes, ID #59507 Salt River Tributary in South Mountain Park 09512200 33 20 49 / 112 05 03 No Agua Fria River Tributary #2, near Rock Springs 09512700 34 02 00 / 112 08 42 No Deadman Wash near New River 09513820 33 50 30 / 112 08 40 No Waterman Wash near Buckeye 09514200 33 19 49 / 112 30 33 No Hartman Wash near Wickenburg 09515800 33 57 46 / 112 49 40 Yes, ID #51207 Ox Wash near Morristown 09516600 33 53 00 / 112 39 00 No Jackrabbit Wash near Tonopah 09516800 33 39 32 / 112 49 40 No Centennial Wash Tributary near Wenden 09517200 33 50 40 / 113 27 00 No Tiger Wash near Aguila 09517280 33 44 30 / 113 16 43 Yes, ID #27007 Winters Wash near Tonopah 09517400 33 29 22 / 112 55 05 No Rainbow Wash Tributary near Buckeye 09519600 33 14 35 / 112 38 15 No Bender Wash near Gila Bend 09519750 32 54 25 / 112 33 05 Yes, ID #40507 Sauceda Wash near Gila Bend 09519760 32 52 14 / 112 45 30 Yes, ID #71007 Military Wash near Sentinel 09520100 32 50 43 / 113 16 44 No Crater Range Wash near Ajo 09520240 32 33 44 / 112 52 37 No Star Wash near Tonopah 09516790 33 37 59 / 112 46 44 No None 33 28 08 / 112 58 10 Yes, ID #25007 Delaney Wash near Tonopah viii FCD Gage DEFINITION OF TERMS Terms related to streamflow and other hydrologic data as used in this report are defined below: Table 4: Definitions Term Acre-foot (ac-ft or af) Definition The quantity of water required to cover 1 acre to a depth of 1 foot and is equivalent to 43,560 cubic feet or about 326,000 gallons or 1,233 cubic meters. Basin A typically man-made structure that is partially or entirely below the normal grade of land where it lies. It is for detaining water for release to another structure such as a storm drain. CAP Central Arizona Project, as in the CAP canal. Cubic Feet per Second (cfs) & cfs-day The rate of discharge representing a volume of 1 cubic foot passing a given point during a one-second interval, and is equivalent to approximately 7.48 gallons per second, 448.8 gallons per minute, or 0.02832 cubic meters per second. A cfs-day equals 86,400 cubic feet or 1.98 acre feet The average discharge in cfs for a 24-hour period from midnight to midnight the following day. Daily Mean Discharge Data Gaps in Period of Record Discharge (Q) Data gaps referred to here are typically due to construction activities that cause the gage and station to be removed and out of service for a period of time. There are times when the station is down due to internal or external failure (battery, transmitter, repeater), but the station remains ‘in the ground.’ These gaps are not accounted for in this report. The volume of water (or more broadly, total fluid plus suspended sediment), that passes a given point within a given period of time. ix Drainage Area (DA) The area, measured in a horizontal plane, enclosed by a topographic divide from which direct surface runoff from precipitation normally drains by gravity into the stream above the specified point. Flood Flow Frequency Refers to the magnitude (in terms of peak discharge) and probability of floods at a given gaging station. The flood flow frequency is usually given as a peak discharge associated with a given recurrence interval at a particular gaging station. FRS Flood Retarding Structure, refers to dams originally constructed by the Soil Conservation Service (SCS), now known as the Natural Resources Conservation Service (NRCS). Gage (or gauge) Refers to a measuring device or sensor, such as a pressure transducer, or bubbler orifice, or a passive device, such as a staff gage, or crest-stage gage. Gage Datum The elevation of the zero point of the reference gage from which gage height is determined. This elevation is established by a system of levels from known benchmarks or by approximation from topographic maps or arbitrarily established to a known point such as a culvert invert elevation. The water-surface elevation referred to by an arbitrary gage datum. Gage height is often used interchangeably with the more general term "stage," although gage height is more appropriate when used with a reading on a gage. Gage Height Gage Station or Station A purpose-built structure containing sensors that make systematic observations of hydrologic data. Mean Discharge (cfs) (MEAN) is the arithmetic mean of individual daily mean discharges during a specific period. x NGVD29 – (aka MSL) NAVD88 Peak Discharge (cfs) A geodetic datum derived from a general adjustment of the first order level nets of both the United States and Canada. It was formerly called "Sea Level Datum of 1929" or "mean sea level." Although the datum was derived from the average sea level over a period of many years at 26 tide stations along the Atlantic, Gulf of Mexico, and Pacific Coasts, it does not necessarily represent local mean sea level at any particular place. A datum based on the mass or density of the Earth instead of the varying values of the heights of the seas. Measurements of the acceleration of gravity are made at observation points in a network. Only one point is defined as the datum point. The vertical reference surface is then defined by the surface on which the gravity values are equal to the datum point value. This is called an equipotential surface. is the maximum instantaneous discharge for a given runoff event. Period of Record (POR) The time period for which data exists for a given stream gaging station. Pressure Transducer An instrument used to measure the depth of water. It is an analog instrument which measures a pressure change over a diaphragm. The depth of water is related to the change in pressure over the diaphragm created by the weight of the water above the instrument. The reciprocal of the probability of a flood occurring in any given year. Thus, the flood having a 1% (1/100, or 1 in 100) chance of occurring in any given year has a recurrence interval of 100 years and is referred to as the 100-year flood. Similarly, the flood having a 50% (1/2 or 1 in 2) chance of occurring in any given year has a recurrence interval of 2 years and is referred to as the 2year flood. A sensor, in terms of stream-gaging, is a device that detects the presence and/or depth of water, and could be a transducer, a bubbler-line, a status sensor, a RADAR device, a float device (USGS), or other mechanism that responds to the presence of water. Recurrence Interval Sensor xi Staff Gage A device located at the gaging station to provide a visual reference to the depth of water at a gage in terms of gage height above the water level measuring instrument. Stage-Discharge Relationship The relation between gage height (stage) and the volume of water, per unit of time, flowing in a channel or from a pipe or culvert. Stage-Only Site Sites that only measure stage, but no discharge or volume. Sites would include two Game and Fish water troughs, two underpass sites in downtown Phoenix, and three sites with status sensors, but no other sensor types. Stage-Storage Relationship The relation between gage height (stage) and the volume of water stored behind or within a flood control impoundment structure. Station See ‘Gage Station, or Station’ in the table above. Status Sensor A device that trips a switch ‘on’ when a float on the sensor is actuated by rising water level. Conversely, the switch is ‘off’ when the water level falls below the levels of the float. Is used to indicate that water has reached a predetermined level. The discharge that occurs in a natural channel. Although the term "discharge" can be applied to the flow of a canal, the word "streamflow" uniquely describes the discharge in a surface stream course. The term "streamflow" is more general than "runoff" as streamflow may be applied to discharge whether or not it is affected by diversion or regulation. The 12-month period, October 1 through September 30. The water year is designated by the calendar year in which it ends and includes 9 of the 12 months. Thus, the water year beginning October 1, 2023 and ending September 30, 2024, is called the "2024 Water Year." Streamflow Water Year xii FIGURE 1: FCDMC WATER-LEVEL GAGE LOCATIONS – WY 2024 Figure 1. FCDMC streamflow and impoundment gage location map Streamflow Station Impoundment / Storage Station xiii New Installations in Water Year 2024 Table 5: New Installations Station ID Date Installed None Station Changes in Water Year 2024 • None Revisions To Previous Editions of This Report • None xiv Requesting Agency Gage Stations included in this report. Arizona Canal Diversion Channel at 36th Street, ID #10007 ................................................ 1 Arizona Canal Diversion Channel at 14th Street, ID #10507 ................................................ 5 Arizona Canal Diversion Channel at 43rd Avenue, ID #11307 ............................................. 9 Arizona Canal Diversion Channel at 67th Avenue, ID #13807.............................................13 Adobe Dam Pool, ID #65017..............................................................................................17 Adobe Dam Outlet, ID #65007 ...........................................................................................22 Agua Fria River at Grand Avenue, ID #14707 ....................................................................26 Agua Fria River at Buckeye Road, ID #85307 ....................................................................30 Amigos Wash, ID #80507 ..................................................................................................34 Antelope Creek, ID #55207 ................................................................................................38 Apache Junction FRS, ID #81307 ......................................................................................42 Apache Trail, ID #36507 ....................................................................................................48 Aspen Dam, ID #78707 ......................................................................................................52 Baseline Road at 43rd Avenue Basin, ID #66407 ................................................................58 Bender Wash, ID #40507 ...................................................................................................64 Berneil Wash, ID #59207 ...................................................................................................68 Blue Tank Wash, ID #52707 ..............................................................................................72 Box Wash, ID #47507 ........................................................................................................76 Buckeye Floodway, ID #44307...........................................................................................80 Buckeye FRS #1, ID #44007 ..............................................................................................84 Buckeye FRS #2, ID #44507 ..............................................................................................90 Buckeye FRS #3, ID #48807 ..............................................................................................96 Bullard Wash at Indian School Road, ID #89507..............................................................102 Bullard Wash at Van Buren Street, ID #89207 .................................................................106 Camelback Road at 24th Avenue Basin, ID #6807............................................................110 CAP Reach #11 Dike #1, ID #8407 ..................................................................................116 CAP Reach #11, Dike #2, ID #58607 ...............................................................................122 CAP Reach #11, Dike #3, ID #60107 ...............................................................................128 CAP Reach #11, Dike #4, ID #59807 ...............................................................................134 Casandro Wash, ID #52007 .............................................................................................140 Casandro Wash Dam, ID #53007 ....................................................................................144 Cave Buttes Dam Pool, ID #19517 ..................................................................................150 Cave Buttes Dam Outlet, ID #19507 ................................................................................155 Cave Creek at Ashdale Ranger Station, ID #21307 .........................................................159 xv Cave Creek at Spur Cross, ID #20707 .............................................................................163 Cave Creek, ID #19007....................................................................................................167 Cave Creek near Cave Creek, ID #20507 ........................................................................171 Cave Creek at CAP, ID #19807 .......................................................................................175 Cave Creek near Union Hills Drive, ID #8007 ..................................................................179 Cave Creek at Cactus Road, ID #11807 ..........................................................................183 Centennial Wash near Aguila, ID #29007 ........................................................................187 Centennial Wash at Wenden, ID #27507 .........................................................................191 Centennial Levee, ID #25707 ...........................................................................................195 Centennial Railroad, ID #24707 .......................................................................................199 Centennial Tributary at Dobbins Road, ID #22807 ...........................................................203 Cline Creek, ID #66007 ....................................................................................................207 Colter Channel at El Mirage Road, ID #85507 .................................................................211 Columbus Wash, ID #40807 ............................................................................................215 Copper Wash, ID #41007 .................................................................................................219 Crossroads Park Basin, ID #33007 ..................................................................................223 Cruff Wash, ID #23707.....................................................................................................228 Daggs Wash, ID #48507 ..................................................................................................232 Deadman Wash @ Loop 303, ID #62107 .........................................................................236 Delaney Wash, ID #25007 ...............................................................................................240 Desert Hills Wash, ID #19307 ..........................................................................................244 Dreamy Draw Dam, ID #9807 ..........................................................................................248 Dysart Drain at LAFB, ID #85807 .....................................................................................254 East Fork Cave Creek Basin #1, ID #7807 .......................................................................258 East Fork Cave Creek Basin #3A, ID #8807 ....................................................................264 East Fork Cave Creek Basin #3B, ID #8707 ....................................................................270 East Fork Cave Creek Basin #4, ID #8207 .......................................................................276 East Fork Cave Creek near 7th Avenue, ID #8507 ............................................................282 El Mirage Road Drain, ID #14507 ....................................................................................286 East Maricopa Floodway at Broadway Road, ID #34307..................................................290 East Maricopa Floodway below Powerline Floodway, ID #33707 .....................................294 East Maricopa Floodway at Queen Creek Road, ID #34807 ............................................298 East Maricopa Floodway at Arizona Avenue, ID #35507 ..................................................302 Estrella Fan, ID #84207 ...................................................................................................306 Flying E Wash, ID #51707 ...............................................................................................310 Ford Canyon Wash, ID #86207 ........................................................................................314 Fourth of July Wash, ID #41207 .......................................................................................318 xvi Freestone Basin, ID #32807 ............................................................................................322 Galloway Wash at Galloway Road, ID #20607 .................................................................327 Gila River at Olberg Road, ID #42007 ..............................................................................331 Gila River at Maricopa Road, ID #41707 ..........................................................................335 Gila River at 116th Avenue, ID #70707 .............................................................................339 Gila River at Estrella Parkway, ID #83807........................................................................343 Golden Eagle Park Dam, ID #78007 ................................................................................347 Grand Avenue at 27th Avenue Basin, ID #3807 ................................................................353 Granite Reef Diversion, ID #75007 ..................................................................................359 Granite Reef Wash, ID #57507 ........................................................................................363 Greene Wash at SR 84, ID #64007 ..................................................................................367 Guadalupe Channel, ID #35707 .......................................................................................371 Guadalupe FRS, ID #68207 .............................................................................................375 Harquahala FRS, ID #26007 ............................................................................................381 Hartman Wash, ID #51207 ...............................................................................................387 Hassayampa River at Wagoner, ID #54307 .....................................................................391 Hassayampa River at Box Canyon, ID #53507 ................................................................395 Hassayampa River at US60, ID #45707 ...........................................................................399 Hassayampa River near Morristown, ID #45507 ..............................................................403 Hassayampa River at I-10, ID #48007 .............................................................................407 Hesperus Dam, ID #79007 ...............................................................................................411 Indian Bend Wash at Sweetwater Avenue, ID #58307 .....................................................417 Indian Bend Wash at Shea Boulevard, ID #59507 ...........................................................421 Indian Bend Wash near Indian Bend Road, ID #56307 ....................................................425 Indian Bend Wash at McDonald Drive, ID #57207 ...........................................................429 Indian Bend Wash at Indian School Road, ID #56507 ......................................................433 Indian Bend Wash near McKellips Road, ID #55707 ........................................................437 Indian Bend Wash Interceptor Channel, ID #56807 .........................................................441 Jackrabbit Wash, ID #45007 ............................................................................................445 Lake Margherite, ID #59007 .............................................................................................449 Laveen Basin, ID #67807 .................................................................................................453 Magma FRS, ID #42307 ..................................................................................................459 Martinez Creek, ID #49507 ..............................................................................................465 McDowell Mountain Road, ID #76007 ..............................................................................469 McMicken Dam at Bell Road, ID #71507 ..........................................................................473 McMicken Dam, ID #71707 ..............................................................................................477 McMicken Floodway, ID #71307 ......................................................................................483 xvii Mineral Canyon Basin, ID #68807 ....................................................................................487 New River Fire, ID #62707 ...............................................................................................493 New River @ Loop 303, ID #62213 ..................................................................................497 New River Dam Pool, ID #62017 .....................................................................................501 New River Dam Outlet, ID #62007 ...................................................................................506 New River at Bell Road, ID #61707 ..................................................................................510 New River at Glendale Avenue, ID #61507 (transducer), #61513 (radar) .........................514 North Heights Dam, ID #78207 ........................................................................................519 Old Crosscut Canal near McDowell Road, ID #4707 ........................................................525 Paradise Lane at 33rd Drive Basin, ID #12407..................................................................529 Paradise Lane at 47th Avenue Basin, ID #13707 ..............................................................535 Pecos Sediment Basin, ID #70007 ...................................................................................541 Pecos Basin Pool, ID #70017...........................................................................................547 Pecos North Inflow, ID #69307.........................................................................................553 Pecos East Inflow, ID #69507 ..........................................................................................557 Pecos West Inflow, ID #69807 .........................................................................................561 Phoenix Dam #2A, ID #8907 ............................................................................................565 Phoenix Dam #2B, ID #9907 ............................................................................................571 Phoenix Dam #3, ID #11507 ............................................................................................577 Phoenix Dam #4, ID #12207 ............................................................................................583 Phoenix Dam #7, ID #13307 ............................................................................................589 Phoenix Dam #99, ID #12707 ..........................................................................................595 Phoenix East Park Dam, ID #13007 .................................................................................601 Phoenix West Park Dam, ID #13507 ................................................................................607 Phoenix Zoo Dam #3, ID #4307 .......................................................................................613 Phoenix Zoo Dam #5, ID #4407 .......................................................................................619 Picacho Wash, ID #74207 ................................................................................................625 Pima Canyon Wash, ID #68707 .......................................................................................629 Powder House Wash, ID #52507 .....................................................................................633 Powerline Floodway, ID #37507 .......................................................................................637 Powerline FRS, ID #36807 ...............................................................................................641 Price Drain @ Loop 202, ID #31507 ................................................................................647 Prickly Pear Wash, ID #8107 ...........................................................................................651 Queen Creek at CAP, ID #38007 .....................................................................................655 Queen Creek at Rittenhouse Road, ID #37707 ................................................................659 Rainbow Wash, ID #42807 ..............................................................................................663 Rawhide Wash, ID #61007 ..............................................................................................667 xviii Reata Pass Dam, ID #61207............................................................................................671 Reata Pass Wash, ID #60007 ..........................................................................................677 Red Mountain Freeway Levee at McDowell Road, ID #80007..........................................681 Red Mountain Freeway Levee at McKellips Road , ID #79807 .........................................687 Red Mountain Freeway Levee at Brown Road, ID #81507 ...............................................693 Rittenhouse FRS, ID #37207 ...........................................................................................699 Roeser Road at 23rd Avenue Basin, ID #66807 ................................................................705 Saddleback FRS, ID #25207 ............................................................................................711 Salt River below Granite Reef Dam, ID #75307 ...............................................................717 Salt River at Val Vista Drive, ID #39507 ...........................................................................721 Salt River at Priest Drive, ID #67307 ................................................................................725 Salt River at 7th Avenue, ID #68007 .................................................................................729 Salt River at 51st Avenue, ID #5307 .................................................................................733 Sand Tank Wash at I-8, ID #40007 ..................................................................................737 Santa Cruz River at SR84, ID #63807..............................................................................741 Sauceda Wash, ID #71007 ..............................................................................................745 Scatter Wash, ID #14007 .................................................................................................749 Seven Springs Wash, ID #21807 .....................................................................................753 Signal Butte FRS, ID #79507 ...........................................................................................757 Siphon Draw Wash at Signal Butte Road, ID #37607 .......................................................763 Skunk Creek near New River, ID #66207 .........................................................................767 Skunk Creek at Desert Hills Drive, ID #64807 ..................................................................771 Skunk Creek at Carefree Highway, ID #65707 .................................................................775 Skunk Creek at Dixileta Drive, ID #64907 ........................................................................779 Skunk Creek at I-17, ID #65807 .......................................................................................783 Skunk Tank Wash, ID #64707..........................................................................................787 Sols Wash at SR71, ID #47707........................................................................................791 Sols Tributary at US93, ID #50007 ...................................................................................795 Sols Wash near Matthie, ID #50807 .................................................................................799 Sonoqui Wash near Hawes Road, ID #36307 ..................................................................803 Sonoran Wash, ID #65907 ...............................................................................................807 South Mountain Fan, ID #70507 ......................................................................................811 Spookhill FRS, ID #74707 ................................................................................................815 Stagecoach Wash, ID #20007..........................................................................................821 Stoneridge Dam, ID #77307 .............................................................................................825 Sun Valley Parkway at Northern Avenue, ID #48307 .......................................................831 Sunnycove FRS, ID #46507 .............................................................................................835 xix Sunridge Canyon Dam, ID #77507 ..................................................................................841 Sunset FRS, ID #46007 ...................................................................................................847 Sycamore Creek Fire, ID #81807(transducer), 81813(radar)............................................853 Tatum Wash Basin Inflow, ID #58007 ..............................................................................858 Tatum Wash Basin, ID #58507 ........................................................................................862 Tenth Street Wash Basin #1, ID #11007 ..........................................................................868 Tiger Wash, ID #27007 ....................................................................................................874 Twin Buttes Wash, ID #73207 ..........................................................................................878 University Drive at 62nd Street Basin, ID #34607 ..............................................................882 Upper Trilby Wash, ID #73807 .........................................................................................888 US60 at Gold Canyon, ID #36907 ....................................................................................892 Vekol Wash, ID #74507 ...................................................................................................896 Vineyard FRS, ID #37007 ................................................................................................900 Vulture Mine Road, ID #47007 .........................................................................................906 Wagner Wash at Sun Valley Parkway, ID #44707............................................................910 Waterman Wash at Rainbow Valley Road, ID #83307 .....................................................914 Weekes Wash at Baseline Road, ID #39207....................................................................918 White Tanks FRS #3, ID #87307 ......................................................................................922 White Tanks FRS #4, ID #87807 ......................................................................................928 White Tank Outlet Channel, ID #87407 ............................................................................934 Whitlow Ranch Dam, ID #63307 ......................................................................................938 Winters Wash, ID #25507 ................................................................................................944 xx SUMMARY OF SIGNIFICANT STREAMFLOW EVENTS Water year 2024 was best characterized as uneventful (hydrologically speaking) as none of the stations broke historical peak flow or impoundment records. The water year started off slow with no large events recorded until February. There were two winter runoff events and one spring event of note this year. Several stations recorded flow on February 1st, February 6th, and April 1st. In the case of each of these rainfall events, the precipitation was widely dispersed across the valley leading to many of the stations recording minor flows, but none recorded any historically significant discharges. During the February 1st event, every District rain gage recorded measurable rainfall even though many stream and impoundment gages did not measure any discharge. April 1st was similar in scale and distribution to the previous events. What is unique is that April is part of the dry season for the region and this event to start off the month led to the most hydrologically active April on record. The only events of note during the monsoon occurred on August 18th and 22nd. These primarily affected the IBW (Indian Bend Wash). In a more active monsoon this event would not have been noted. Table 6: Stations with Flow Events Recorded Stations recording flow in winter: 77 37.7 % Stations with no flow in winter: 127 62.3 % Stations recording flow during monsoon: 66 32.4 % Stations with no flow during monsoon: 138 67.6 % 111 (one hundred eleven) stations recorded no runoff in Water Year 2024. Pressure Transducer Event Count Comparison 120 100 80 60 40 20 0 Oct Nov Dec Jan Feb Mar Count of 2024 Events Apr May Jun Jul Aug Sep 20 year Average Figure 2: The bar graph above compares the monthly count of PT (pressure Transducer) events this water year verses the 20-year average. Only gages with 20 years or greater were used (132 gages in total) for the 20-year average and count of 2024 events. Highlights of the runoff and impoundment events are summarized on the following two pages. xxi Table 7: Maximum Flows Recorded this Water Year Maximum Flows for Water Year 2024 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Discharge (cfs) Stage (feet) 3.09 12/22/2023 Vekol Wash 400 5.90 01/23/2024 EMF at Queen Creek Road EMF at Arizona Avenue 824 703 3.10 1.97 02/02/2024 02/02/2024 Hassayampa River near Morristown Arizona Canal Diversion Channel (ACDC) at 36th Street ACDC at 14th Street Indian Bend Wash (IBW) at Sweetwater Avenue IBW at Shea Boulevard IBW near Indian Bend Road Cave Creek at Cactus Road 1,237 8 68 233 1,055 38 203 9.17 1.27 1.22 1.62 2.31 1.70 7.64 03/31/2024 04/01/2024 04/01/2024 04/01/2024 04/01/2024 04/01/2024 04/01/2024 Cruff Wash 857 3.91 08/03/2024 Twin Buttes Wash ACDC at 43rd Avenue ACDC at 67th Avenue 470 408 219 2.89 1.78 3.17 08/18/2024 08/18/2024 08/18/2024 IBW at Indian School Road IBW at McDonald Drive IBW near McKellips Road 230 255 711 1.42 2.16 2.41 08/22/2024 08/23/2024 08/22/2024 Columbus Wash 219 Date Note: Many stations recorded multiple events. These are the maximum peaks for the year. xxii Water Year 2024 Maximum Impoundments for Water Year 2024 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Discharge (cfs) Stage (feet) (ac-ft) Roeser Road at 23rd Avenue Basin 15 1.96 Laveen Basin 12 Phoenix Dam #2A Phoenix Dam #3 Phoenix Dam #4 Phoenix Dam #99 18 31 21 5 Red Mountain Freeway Levee at McDowell Road Red Mountain Freeway Levee at McKellips Road Red Mountain Freeway Levee at Brown Road 35 38 46 1.85 1.56 1.54 15.1 28.8 77.6 Contents (%full) Date 0.3% 0.5% 2.0% 12/23/2023, 02/08/2024 12/23/2023 02/10/2024 22.2 16.3% 01/23/2024 4.88 10.7 9.9% 04/01/2024 4.15 3.94 5.96 1.20 6.5 1.0 3.7 0.0 11.1% 1.6% 8.8% 0.0% 04/01/2024 04/01/2024 04/01/2024 04/01/2024 Note: Many stations recorded multiple events. These include the maximum peaks for the year. xxiii Water Year 2024 DATA PRESENTATION The following pages present the data collected by the Flood Control District ALERT system. Data have been retrieved from a TriLynx Systems, LLC® NovaStar5 database, maintained at the District. The data pages are in alphabetical order by station name. If there is more than one station on a stream such as Cave Creek, the stations are placed in stream order, upstream to downstream. The data tables included with each gage are directly produced by a database function. In the tables where there are dashes “- - -“ on a particular date or dates, the gage was down. Typically, a gage is down when the gage itself fails, or a transmitter or repeater fails. In the case of transmitter failure or repeater failure, data for that date is available by manual download. However, when no event occurred, the data won’t be retrieved from the device. xxiv Water Year 2024 Arizona Canal Diversion Channel at 36th Street, ID #10007 Site Data LOCATION At the inlet to the ACDC near 36th Street and Stanford Drive DRAINAGE AREA 4.8 mi2 STREAM TYPE Engineered Basin / Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S13 T2N R3E LATITUDE N 33° 30’ 49.3” | +33.51368 LONGITUDE W 111° 59’ 58.7” | -111.99963 ARIZONA STATE PLANE E 674711 | N 914440 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 02/24/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 02/24/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.60 Years | 11,177 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.12 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,237.697 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 919 cfs | 7.89 feet | 10/02/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 1 Watershed Map Discharge (cfs) ACDC at 36th Street - water year peaks 1000 900 800 700 600 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 2 2015 2020 2025 WY2024 Events Date of Peak 01/23/2024 03/24/2024 04/01/2024 Peak Gage Height 1.09 0.77 1.27 Hydrograph of peak WY 2024 flow event, 03/24/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 3 Peak Discharge (cfs) 4 1 8 ACDC at 36th Street, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 4 0 8 8 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 1 2 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2 MEAN 0 MAX 8 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2024 Page 4 Arizona Canal Diversion Channel at 14th Street, ID #10507 Site Data LOCATION Near 14th Street and Orangewood Avenue DRAINAGE AREA 10.2 mi2 STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S04 T2N R3E LATITUDE N 33° 32’ 37.3” | +33.54369 LONGITUDE W 112° 03’ 05.1” | -112.05141 ARIZONA STATE PLANE E 658947 | N 925374 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 02/09/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 02/09/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.64 Years | 11,192 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.40 feet Gage Height STAFF GAGES One CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,215.807 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,414 cfs | 6.75 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 5 Watershed Map ACDC at 14th Street - water year peaks 1,600 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 6 2015 2020 2025 WY2024 Events Date of Peak 01/23/2024 04/01/2024 Peak Gage Height (feet) 0.70 1.22 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 7 Peak Discharge (cfs) 30 68 ACDC at 14th Street, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 8 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 8 24 25 26 27 28 29 30 ------1 ------31 -----------------------------------------------------------------------------TOTAL 0 0 0 8 0 1 8 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 30 0 47 68 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 15 0 1 15 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 16 MEAN 0 MAX 68 MIN 0 AC_FT 31 FCDMC Annual Surface Water Report, Water Year 2024 Page 8 Arizona Canal Diversion Channel at 43rd Avenue, ID #11307 Site Data LOCATION Near Peoria and 43rd Avenues DRAINAGE AREA 59.7 mi2 Excluding Area Above Cave Buttes Dam, 258.6 mi2 Including Area Above Cave Buttes Dam (from USGS Streamstats) STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S22 T3N R2E LATITUDE N 33° 35’ 02.4” | +33.58400 LONGITUDE W 112° 09’ 15.2” | -112.15422 ARIZONA STATE PLANE E 627649 | N 940096 USGS QUAD SHEET Glendale 7.5-Minute STREAMGAGE INSTALLATION DATE 11/14/1990 – WY 1991 PERIOD OF AVAILABLE DATA RECORD 11/14/1990 – Current LENGTH OF AVAILABLE DATA RECORD 33.88 Years | 12,375 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.95 feet Gage Height STAFF GAGES Two CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,200.704 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,601 cfs | 6.58 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 9 Watershed Map ACDC at 43rd Avenue - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 10 2015 2020 2025 WY2024 Events Date of Peak 02/02/2024 04/01/2024 08/18/2024 Peak Gage Height (feet) 1.53 1.32 1.78 Hydrograph of peak WY 2024 flow event, 08/18/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 11 Peak Discharge (cfs) 280 190 408 ACDC at 43rd Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 13 2 24 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 22 19 20 21 22 10 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 10 0 27 1 13 0 0 0 22 0 MEAN 0 0 0 0 1 0 0 0 0 0 1 0 MAX 0 0 146 0 280 131 190 0 0 0 408 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 19 0 55 1 26 0 0 0 43 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 73 MEAN 0 MAX 408 MIN 0 AC_FT 144 FCDMC Annual Surface Water Report, Water Year 2024 Page 12 Arizona Canal Diversion Channel at 67th Avenue, ID #13807 Site Data LOCATION On 67th Avenue south of Greenway Road DRAINAGE AREA 283.7 mi2 (Includes area above Cave Buttes Dam) STREAM TYPE Engineered Channel JURISDICTION Glendale, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S12 T3N R1E LATITUDE N 33° 37’ 17.8” | +33.62161 LONGITUDE W 112° 12’ 09.7” | -112.20269 ARIZONA STATE PLANE E 612945 | N 953819 USGS QUAD SHEET Glendale 7.5-Minute STREAMGAGE INSTALLATION DATE 06/07/1990 – WY 1990 PERIOD OF AVAILABLE DATA RECORD 06/07/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.32 Years | 12,535 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 4 ZERO GAGE HEIGHT ELEVATION 1,189.057 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,511 cfs | 8.40 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 13 Watershed Map ACDC at 67th Avenue - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 14 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/23/2023 01/23/2024 02/02/2024 02/07/2024 03/09/2024 03/24/2024 04/01/2024 07/25/2024 08/03/2024 08/04/2024 08/18/2024 08/21/2024 Peak Gage Height (feet) 1.93 2.22 2.03 3.01 2.22 2.17 1.54 3.05 2.24 0.58 0.58 3.17 1.02 Peak Discharge (cfs) 51 69 57 177 69 66 38 187 71 10 10 219 22 Hydrograph of peak WY 2024 flow event, 02/02/2024 Flood Flow Frequency Flood Flow Frequency U.S. Army Corps of Engineers Design 2-year 5-year 10-year 25-year 50-year 100-year 1,900 4,500 7,700 13,500 20,600 29,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 15 ACDC at 67th Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 80 5 2 70 25 3 3 10 2 4 5 6 7 1 34 10 8 1 25 12 9 1 20 24 10 1 12 11 2 12 1 13 1 1 14 1 1 15 16 1 17 7 18 23 70 19 2 6 20 21 4 8 22 20 2 1 23 34 28 24 14 21 1 25 5 35 26 4 27 28 29 30 ------18 ------31 -----------------------------------------------------------------------------TOTAL 0 25 57 49 174 99 107 0 0 53 88 0 MEAN 0 1 2 2 6 3 4 0 0 2 3 0 MAX 0 51 69 57 177 66 187 0 0 71 219 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 49 112 96 345 197 212 0 0 106 176 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 652 MEAN 2 MAX 219 MIN 0 AC_FT 1294 FCDMC Annual Surface Water Report, Water Year 2024 Page 16 Adobe Dam Pool, ID #65017 Site Data LOCATION Near 43rd Avenue and Deer Valley Drive DRAINAGE AREA 87.3 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S21 T4N R2E LATITUDE N 33° 40’ 38.0” | +33.67670 LONGITUDE W 112° 09’ 14.3” | -112.15397 ARIZONA STATE PLANE E 627803 | N 974016 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/28/1982 – WY 1983 PERIOD OF AVAILABLE DATA RECORD 08/30/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.09 Years | 13,181 Days GAPS IN RECORD None STAGE GAGE TYPE Gas-Purge Bubbler STAGE GAGE ELEVATION 2.85 Feet Gage Height STAFF GAGES 14 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,339.81 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 39.77 feet Gage Height TOP OF DAM ELEVATION 65.07 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 17 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 18 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 19 Percent Spillway Capacity Adobe Dam Pool, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 20 Adobe Dam Pool, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 4 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 5 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 6 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 7 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 8 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 10 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 11 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 12 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 13 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 14 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 15 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 16 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 17 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 18 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 19 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 20 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 21 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 22 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 23 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 24 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 25 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 26 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 27 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 28 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 29 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 30 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 31 2.9 --2.9 2.9 --2.9 --2.9 --2.9 2.9 -------------------------------------------------------------------------------MEAN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MAX 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MIN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 -----------------------------------------------------------------------------WTR YR 2024 MEAN 2.85 MAX 2.85 MIN 2.85 FCDMC Annual Surface Water Report, Water Year 2024 Page 21 Adobe Dam Outlet, ID #65007 Site Data LOCATION Near 43rd Avenue and Deer Valley Drive DRAINAGE AREA 87.3 mi2 STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S21 T4N R2E LATITUDE N 33° 40’ 38.0” | +33.67670 LONGITUDE W 112° 09’ 14.3” | -112.15397 ARIZONA STATE PLANE E 627803 | N 974016 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/28/1982 – WY 1983 PERIOD OF AVAILABLE DATA RECORD 08/03/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.16 Years | 12,478 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,330.27 feet NAVD88 POINT OF ZERO FLOW -0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,193 cfs | 11.39 feet | 08/16/1990 FCDMC Annual Surface Water Report, Water Year 2024 Page 22 Watershed Map Adobe Dam Outlet - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 23 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 24 Peak Discharge (cfs) Adobe Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 25 Agua Fria River at Grand Avenue, ID #14707 Site Data LOCATION On Grand Avenue west of 113th Avenue DRAINAGE AREA 183.0 mi2 (below New Waddell Dam), 1,615 mi2 total STREAM TYPE Channelized Natural Stream JURISDICTION El Mirage, Arizona WATERSHED White Tanks A / Lower Agua Fria SECTION/TOWNSHIP/RANGE S18 T3N R1E LATITUDE N 33° 36’ 26.6” | +33.60739 LONGITUDE W 112° 18’ 20.6” | -112.30571 ARIZONA STATE PLANE E 581558 | N 948749 USGS QUAD SHEET El Mirage 7.5-Minute STREAMGAGE INSTALLATION DATE 04/27/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 04/27/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.43 Years | 11,115 days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.50 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,104.711 feet NAVD88 POINT OF ZERO FLOW 1.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,952 cfs | 6.50 feet | 10/27/2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 26 Watershed Map Agua Fria River at Grand Ave - water year peaks 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 27 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 02/01/2024 04/01/2024 Peak Gage Height 3.54 3.06 3.30 Hydrograph of peak WY 2024 flow event, 11/18/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 28 Peak Discharge (cfs) 132 21 69 Agua Fria River at Grand Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 6 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 5 19 20 21 22 1 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 5 1 0 2 1 6 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 132 7 0 21 9 69 0 2 4 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 9 1 0 4 2 12 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 15 MEAN 0 MAX 132 MIN 0 AC_FT 29 FCDMC Annual Surface Water Report, Water Year 2024 Page 29 Agua Fria River at Buckeye Road, ID #85307 Site Data LOCATION On Buckeye Road east of Dysart Road DRAINAGE AREA 2,404 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Avondale, Arizona WATERSHED White Tanks A / Lower ACDC SECTION/TOWNSHIP/RANGE S14 T1N R1W LATITUDE N 33° 26’ 06.3” | +33.43501 LONGITUDE W 112° 19’ 55.8” | -112.33254 ARIZONA STATE PLANE E 573231 | N 886088 USGS QUAD SHEET Tolleson 7.5-Minute STREAMGAGE INSTALLATION DATE 10/12/1988 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 10/12/1988 – Current LENGTH OF AVAILABLE DATA RECORD 35.97 Years | 13,138 Days GAPS IN RECORD 09/06/2003 – 07/13/2004 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.26 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 954.72 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 10,274 cfs | 3.74 feet | 09/08/2014 EXTREME OUTSIDE PERIOD OF RECORD 44,200 cfs | 02/20/1980 FCDMC Annual Surface Water Report, Water Year 2024 Page 30 Watershed Map Agua Fria River at Buckeye Road - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 31 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency FEMA, 1995 2-year 5-year 10-year 50-year 100-year 500-year --- --- 22,000 69,000 95,000 184,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 32 Agua Fria River Buckeye Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 --6 --7 --8 --9 --10 --11 --12 13 14 15 16 17 18 19 20 --21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 33 Amigos Wash, ID #80507 Site Data LOCATION Located in Usery Mountain Park, northeast of the intersection of McKellips and Crismon Roads DRAINAGE AREA 0.47 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S01 T1N R7E LATITUDE N 33° 27’ 16.8” | +33.45467 LONGITUDE W 111° 36’ 24.4” | -111.60677 ARIZONA STATE PLANE E 794550 | N 893199 USGS QUAD SHEET Apache Junction 7.5-Minute STREAMGAGE INSTALLATION DATE 01/09/2013 – WY 2013 PERIOD OF AVAILABLE DATA RECORD 01/09/2013 – Current LENGTH OF AVAILABLE DATA RECORD 11.73 Years | 4,283 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,783.868 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 669 cfs | 2.05 feet | 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 34 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 35 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 36 Peak Discharge (cfs) Amigos Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 37 Antelope Creek, ID #55207 Site Data LOCATION Located about 1.5 miles upstream from Martinez Creek (7013) DRAINAGE AREA 65.1 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S09 T8N R5W LATITUDE N 34° 02’ 55.6” | +34.04877 LONGITUDE W 112° 46’ 45.7” | -112.77937 ARIZONA STATE PLANE E 438675 | N 1110233 USGS QUAD SHEET Flores 7.5-Minute STREAMGAGE INSTALLATION DATE 07/09/2003 – WY 2003 PERIOD OF AVAILABLE DATA RECORD 07/09/2003 – Current LENGTH OF AVAILABLE DATA RECORD 21.23 Years | 7,755 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,406.00 feet NAVD88 POINT OF ZERO FLOW 1.8 feet Gage Height (February 2019) EXTREME FOR PERIOD OF RECORD 7,169 cfs | 5.42 feet | 10/20/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 38 Watershed Map Antelope Creek - water year peaks 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 39 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 02/06/2024 2.40 180 Hydrograph of peak WY 2024 flow event, 02/06/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 40 Antelope Creek, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 --4 5 6 2 7 8 --9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 --25 ----26 ----27 ----28 --29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 2 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 180 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 5 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2 MEAN 0 MAX 180 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2024 Page 41 Apache Junction FRS, ID #81307 Site Data LOCATION Located near Idaho Road and Lost Dutchman Boulevard DRAINAGE AREA 5.56 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Apache Junction, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S08 T1N R8E LATITUDE N 33° 26’ 29.2” | +33.44143 LONGITUDE W 111° 33’ 06.4” | -111.55178 ARIZONA STATE PLANE E 811305 | N 888329 USGS QUAD SHEET Apache Junction 7.5-Minute STREAMGAGE INSTALLATION DATE 09/15/1988 – WY 1988 PERIOD OF AVAILABLE DATA RECORD 09/15/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.04 Years | 13,165 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.13 feet Gage Height STAFF GAGES 5 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,785.79 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height SPILLWAY ELEVATION 16.00 feet Gage Height TOP OF DAM ELEVATION 26.18 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 42 Watershed Map Apache Juntion FRS - water year peaks 160 Volume (acre-feet) 140 120 100 80 60 40 20 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 43 2010 2015 2020 2025 WY2024 Events Date of Peak 02/02/2024 02/10/2024 07/25/2024 Peak Gage Height (feet) 1.44 0.90 0.97 Peak Volume (ac-ft) 0.5 0.1 0.1 Hydrograph of peak WY 2024 impoundment event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 44 Percent Spillway Capacity 0.0% 0.0% 0.0% Apache Junction FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 3 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 12 0 0 0 0 7 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 6 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 12 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2024 Page 45 Apache Junction FRS, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 46 Apache Junction FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 1.4 0.1 0.1 0.1 0.1 1.0 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.13 MAX 1.44 MIN 0.13 FCDMC Annual Surface Water Report, Water Year 2024 Page 47 Apache Trail, ID #36507 Site Data LOCATION Located in Apache Junction near 4th Avenue and Royal Palm Avenue DRAINAGE AREA 0.35 mi2 STREAM TYPE Natural Stream JURISDICTION Apache Junction, Arizona WATERSHED Upper EMF SECTION/TOWNSHIP/RANGE S21 T1N R8E LATITUDE N 33° 24’ 41.8” | +33.41161 LONGITUDE W 111° 32’ 13.0” | -111.53695 ARIZONA STATE PLANE E 877500 | N 815870 USGS QUAD SHEET Apache Junction 7.5-minute STREAMGAGE INSTALLATION DATE 06/27/2019 – WY 2019 PERIOD OF AVAILABLE DATA RECORD 06/27/2019 – Current LENGTH OF AVAILABLE DATA RECORD 5.26 Years | 1,923 Days GAPS IN RECORD 10/17/2019 – 11/04/2019, 04/22/2023 – 05/02/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet gage height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,732.240 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 480 cfs | 2.87 feet GH | 09/23/2019 FCDMC Annual Surface Water Report, Water Year 2024 Page 48 Location Map Apache Trail Wash - water year peaks 600 Discharge (cfs) 500 400 300 200 100 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 49 2025 WY2024 Events Date of Peak 02/02/2024 02/10/2024 Peak Gage Height 1.49 0.60 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 50 Peak Discharge (cfs) 60 14 Apache Trail, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 3 --3 4 --5 --6 7 8 9 ----10 1 11 12 --13 --14 15 16 17 18 19 20 21 22 --23 --24 25 26 27 28 --29 30 --31 -----------------------------------------------------------------------------------------TOTAL 0 0 0 0 5 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 4 3 0 60 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 1 0 11 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 6 MEAN 0 MAX 60 MIN 0 AC_FT 12 FCDMC Annual Surface Water Report, Water Year 2024 Page 51 Aspen Dam, ID #78707 Site Data LOCATION Near Aspen Drive and Golden Eagle Boulevard DRAINAGE AREA 2.13 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S16 T3N R6E LATITUDE N 33° 37’ 33.1” | +33.62587 LONGITUDE W 111° 44’ 47.3” | -111.74646 ARIZONA STATE PLANE E 751784 | N 955280 USGS QUAD SHEET Fort McDowell Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 01/02/1997 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 01/02/1997 – Current LENGTH OF AVAILABLE DATA RECORD 27.74 Years | 10,134 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.33 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,810.876 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 26.8 feet Gage Height TOP OF DAM ELEVATION 34.6 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 52 Watershed Map Aspen Dam - water year peaks Volume (acre-feet) 25 20 15 10 5 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 53 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 54 Percent Spillway Capacity Aspen Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 55 Aspen Dam, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 56 Aspen Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.2 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.2 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIN 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.32 MAX 0.33 MIN 0.24 FCDMC Annual Surface Water Report, Water Year 2024 Page 57 Baseline Road at 43rd Avenue Basin, ID #66407 Site Data LOCATION Located on the basin at the northeast corner of Baseline Rd and 43rd Avenue DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S34 T1N R2E LATITUDE N 33° 22’ 47.2” | +33.37978 LONGITUDE W 112° 09’ 02.5” | -112.15070 ARIZONA STATE PLANE E 628560 | N 865790 USGS QUAD SHEET Fowler 7.5-Minute STREAMGAGE INSTALLATION DATE 10/01/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/01/2015 – Current LENGTH OF AVAILABLE DATA RECORD 9.00 Years | 3,288 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,023.951 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 10.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 58 Location Map Baseline Road at 43rd Avenue Basin - water year peaks 14 Volume (acre-feet) 12 10 8 6 4 2 0 2015 2016 2017 2018 2019 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 59 2021 2022 2023 2024 2025 WY2024 Events Date of Peak 12/01/2023 12/22/2023 02/02/2024 02/07/2024 03/07/2024 04/01/2024 06/24/2024 07/24/2024 Peak Gage Height (feet) 0.75 0.79 0.99 0.84 1.02 1.96 0.72 0.89 Peak Volume (ac-ft) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Hydrograph of peak WY 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 60 Percent Spillway Capacity 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Baseline Road at 43rd Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 8 2 1 3 4 5 6 7 1 1 8 1 9 10 1 11 12 13 14 15 16 17 18 19 20 21 22 1 23 1 24 25 26 27 28 29 30 ------1 ------31 -----------------------------------------------------------------------------TOTAL 0 0 2 1 5 3 8 0 0 1 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 6 3 8 22 27 0 5 7 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 4 2 9 5 16 0 1 1 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 20 MEAN 0 MAX 27 MIN 0 AC_FT 39 FCDMC Annual Surface Water Report, Water Year 2024 Page 61 Baseline Road at 43rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 62 Baseline Road at 43rd Avenue Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.3 0.2 0.2 0.2 0.8 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.3 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.8 0.5 1.0 1.7 2.0 0.2 0.7 0.9 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.21 MAX 1.96 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 63 Bender Wash, ID #40507 Site Data LOCATION Located about 8 miles east of Gila Bend on I-8 DRAINAGE AREA 69.5 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Gila SECTION/TOWNSHIP/RANGE S15 T6S R3W LATITUDE N 32° 54’ 22.9” | +32.90637 LONGITUDE W 112° 33’ 11.1” | -112.55309 ARIZONA STATE PLANE E 504685 | N 694060 USGS QUAD SHEET Bosque 7.5-Minute STREAMGAGE INSTALLATION DATE 05/12/2004 – WY 2004 PERIOD OF AVAILABLE DATA RECORD 05/12/2004 – Current LENGTH OF AVAILABLE DATA RECORD 20.39 Years | 7,447 Days GAPS IN RECORD 10/06/2015 – 05/22/2017 STAGE GAGE TYPE Transducer STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,200.205 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,490 cfs | 7.10 feet | 07/21/2013 EXTREME OUTSIDE PERIOD OF RECORD 8,250 cfs | 10.78 feet | 09/07/2002 FCDMC Annual Surface Water Report, Water Year 2024 Page 64 Watershed Map Bender Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 65 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 66 Peak Discharge (cfs) Bender Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 --4 5 6 7 --8 9 10 --11 12 --13 ----14 --15 --16 17 18 19 20 21 22 23 --24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 67 Berneil Wash, ID #59207 Site Data LOCATION Near 66th Street and Doubletree Road DRAINAGE AREA 6.9 mi2 STREAM TYPE Engineered Channel JURISDICTION Paradise Valley, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S34 T3N R4E LATITUDE N 33° 33’ 58.5” | +33.56626 LONGITUDE W 111° 56’ 19.6” | -111.93878 ARIZONA STATE PLANE E 693248 | N 933839 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 07/30/1998 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 07/30/1998 – Current LENGTH OF AVAILABLE DATA RECORD 26.17 Years | 9,560 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,314.560 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,634 cfs | 3.50 feet | 10/02/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 68 Watershed Map Berneil Wash - Water-year Peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 69 2015 2020 2025 WY2024 Events Date of Peak 01/23/2024 02/01/2024 02/08/2024 04/01/2024 07/14/2024 08/22/2024 Peak Gage Height (feet) 0.67 0.37 0.37 0.89 0.55 0.42 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 70 Peak Discharge (cfs) 130 62 62 191 100 72 Berneil Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 28 2 7 3 4 5 6 7 8 6 9 10 11 12 13 14 4 15 1 16 17 18 19 20 21 22 2 3 23 1 14 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 2 14 14 0 28 0 0 5 3 0 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 MAX 0 0 11 130 62 0 191 0 0 100 72 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 5 28 28 0 56 0 0 9 6 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 67 MEAN 0 MAX 191 MIN 0 AC_FT 132 FCDMC Annual Surface Water Report, Water Year 2024 Page 71 Blue Tank Wash, ID #52707 Site Data LOCATION Located northeast of Wickenburg near Blue Tank Road crossing DRAINAGE AREA 9.3 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S29 T8N R4W LATITUDE N 34° 0’ 27.1” | +34.00753 LONGITUDE W 112° 41’ 47.8” | -112.69660 ARIZONA STATE PLANE E 463666 | N 1095025 USGS QUAD SHEET Sam Powell Peak 7.5-minute STREAMGAGE INSTALLATION DATE 05/29/2019 – WY 2019 PERIOD OF AVAILABLE DATA RECORD 05/29/2019 – Current LENGTH OF AVAILABLE DATA RECORD 5.34 Years | 1,952 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.10 feet gage height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 2,436.284 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,441 cfs | 4.17 feet GH | 07/27/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 72 Location Map Blue Tank Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 73 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 74 Peak Discharge (cfs) Blue Tank Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 6 7 8 9 --10 11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 75 Box Wash, ID #47507 Site Data LOCATION Located about 3 miles northwest of Vulture Mine DRAINAGE AREA 5.9 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S20 T6N R5W LATITUDE N 33° 50’ 57.4” | +33.84927 LONGITUDE W 112° 47’ 56.8” | -112.79911 ARIZONA STATE PLANE E 432083 | N 1037691 USGS QUAD SHEET Vulture Mine 7.5-Minute STREAMGAGE INSTALLATION DATE 03/11/2003 – WY 2003 PERIOD OF AVAILABLE DATA RECORD 03/11/2003 – Current LENGTH OF AVAILABLE DATA RECORD 21.56 Years | 7,875 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,256.149 feet NAVD88 POINT OF ZERO FLOW -0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 4,160 cfs | 5.65 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 76 Watershed Map Box Wash - water year peaks 4,500 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 77 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 78 Peak Discharge (cfs) Box Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 2 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 2 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 79 Buckeye Floodway, ID #44307 Site Data LOCATION Located at the north side of the Buckeye FRS close to the I-10 85 interchange DRAINAGE AREA 3.1 mi2 via USGS Streams, 17.5 mi2 including Buckeye 2, Buckeye 3 FRS STREAM TYPE Natural JURISDICTION Buckeye, Arizona WATERSHED Lower Hassyampa SECTION/TOWNSHIP/RANGE S14 T1N R4W LATITUDE N 33° 25’ 53.9” | +33.434145 LONGITUDE W 112° 38’ 01.5” | -112.634272 STREAMGAGE INSTALLATION DATE 02/07/2023 – WY 2023 PERIOD OF AVAILABLE DATA RECORD 02/07/2023 – Current LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2023) 1.65 Years | 602 Days GAPS (> 2 DAYS) IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.45 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,082.310 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD No flows recorded FCDMC Annual Surface Water Report, Water Year 2024 Page 80 Watershed Map Buckeye FRS #3 Buckeye FRS #2 Volume (acre-feet) Buckeye Floodway - water year peaks 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2020 No Runoff Recorded to Date 2021 2022 2023 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 81 2024 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 82 Peak Discharge (cfs) Buckeye Floodway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 83 Buckeye FRS #1, ID #44007 Site Data LOCATION Located near I-10 and the Hassayampa River DRAINAGE AREA 76.6 mi2 Excluding structures 2 and 3 STREAM TYPE Dam of natural drainage JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassyampa SECTION/TOWNSHIP/RANGE S03 T1N R5W LATITUDE N 33° 27’ 27.9” | +33.45775 LONGITUDE W 112° 44’ 59.9” | -112.74998 ARIZONA STATE PLANE E 445850 | N 895097 USGS QUAD SHEET Buckeye NW 7.5-Minute STREAMGAGE INSTALLATION DATE 07/26/1983 – WY 1983 PERIOD OF AVAILABLE DATA RECORD 11/23/1987 – Current LENGTH OF AVAILABLE DATA RECORD 36.86 Years | 13,462 Days GAPS IN RECORD 01/21/2010 – 03/01/2010, 10/10/2023 – 01/03/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 6 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,062.00 feet NAVD88 POINT OF ZERO FLOW 0.00 feet SPILLWAY ELEVATION 18.7 feet Gage Height TOP OF DAM ELEVATION 27.7 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 84 Watershed Map Buckeye 1 2 3 Buckeye #1 FRS - water year peaks 700 Volume (acre-feet) 600 500 400 300 200 100 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 85 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 86 Percent Spillway Capacity Buckeye FRS #1, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 --7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 --23 --24 25 26 --27 --28 --29 ------30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 87 Buckeye FRS #1, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 --7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 --23 --24 25 26 --27 --28 --29 ------30 ----------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 88 Buckeye FRS #1, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 --0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.20 MAX 0.20 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 89 Buckeye FRS #2, ID #44507 Site Data LOCATION Located north of I-10 near Miller Road DRAINAGE AREA 5.7 mi2 Excluding Buckeye #3 STREAM TYPE Dam of natural drainage JURISDICTION Buckeye, Arizona WATERSHED Lower Hassyampa SECTION/TOWNSHIP/RANGE S07 T1N R3W LATITUDE N 33° 26’ 22.3” | +33.43954 LONGITUDE W 112° 35’ 47.4” | -112.59650 ARIZONA STATE PLANE E 492623 | N 888131 USGS QUAD SHEET Valencia 7.5-Minute STREAMGAGE INSTALLATION DATE 11/11/1992 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 11/11/1992 – Current LENGTH OF AVAILABLE DATA RECORD 31.89 Years | 11,647 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -1.39 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,098.102 feet NAVD88 POINT OF ZERO FLOW -1.54 feet Gage Height SPILLWAY ELEVATION 15.0 feet Gage Height TOP OF DAM ELEVATION 20.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 90 Watershed Map Buckeye 3 Buckeye 2 Buckeye #2 FRS - water year peaks 250 Volume (acre-feet) 200 150 100 50 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 91 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 92 Percent Spillway Capacity Buckeye FRS #2, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 --17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 93 Buckeye FRS #2, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 --17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 94 Buckeye FRS #2, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 2 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 3 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 5 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 6 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 7 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 8 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 9 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 10 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 11 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 12 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 13 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 14 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 15 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 16 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 --17 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 18 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 19 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 20 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 21 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 22 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 23 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 24 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 25 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 26 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 27 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 28 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 29 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 30 -1.4 -1.4 -1.4 -1.4 --- -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 31 -1.4 --- -1.4 -1.4 --- -1.4 --- -1.4 --- -1.4 -1.4 -------------------------------------------------------------------------------MEAN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 MAX -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 MIN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -----------------------------------------------------------------------------WTR YR 2024 MEAN -1.39 MAX -1.39 MIN -1.39 FCDMC Annual Surface Water Report, Water Year 2024 Page 95 Buckeye FRS #3, ID #48807 Site Data LOCATION Located north of I-10 near Watson Road DRAINAGE AREA 8.7 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Buckeye, Arizona WATERSHED Lower Hassyampa SECTION/TOWNSHIP/RANGE S10 T1N R3W LATITUDE N 33° 26’ 49.5” | +33.44707 LONGITUDE W 112° 33’ 21.4” | -112.55593 ARIZONA STATE PLANE E 505017 | N 890796 USGS QUAD SHEET Valencia 7.5-Minute STREAMGAGE INSTALLATION DATE 11/23/1992 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 11/23/1992 – Current LENGTH OF AVAILABLE DATA RECORD 31.85 Years | 11,635 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -4.08 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,151.034 Feet NAVD88 POINT OF ZERO FLOW -4.10 feet Gage Height SPILLWAY ELEVATION 14.00 feet Gage Height TOP OF DAM ELEVATION 20.50 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 96 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 97 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 98 Percent Spillway Capacity Buckeye FRS #3, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 99 Buckeye FRS #3, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 100 Buckeye FRS #3, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 2 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 3 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 4 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 5 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 6 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 7 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 8 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 9 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 10 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 11 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 12 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 13 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 14 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 15 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 16 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 17 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 18 -4.1 -4.1 -4.1 0.0 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 19 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 20 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 21 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 22 -4.1 -4.1 -4.1 0.0 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 23 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 24 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 25 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 26 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 27 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 28 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 29 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 30 -4.1 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 31 -4.1 --- -4.1 -4.1 --- -4.1 --- -4.1 --- -4.1 -4.1 -------------------------------------------------------------------------------MEAN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 MAX -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 MIN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN -4.08 MAX -4.08 MIN -4.08 FCDMC Annual Surface Water Report, Water Year 2024 Page 101 Bullard Wash at Indian School Road, ID #89507 Site Data LOCATION Located near Indian School Road and Wigwam Boulevard DRAINAGE AREA 14.6 mi2 STREAM TYPE Channelized natural stream JURISDICTION Goodyear, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S29 T2N R1W LATITUDE N 33° 29’ 32.7” | +33.49242 LONGITUDE W 112° 22’ 54.1” | -112.38168 ARIZONA STATE PLANE E 558240 | N 907009 USGS QUAD SHEET Perryville 7.5-Minute STREAMGAGE INSTALLATION DATE 06/27/2006 – WY 2006 PERIOD OF AVAILABLE DATA RECORD 06/27/2006 – Current LENGTH OF AVAILABLE DATA RECORD 18.26 Years | 6,671 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,017.552 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 560 cfs | 2.68 feet | 09/27/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 102 Location Map Bullard Wash at Indian School Road - water year peaks 600 Discharge (cfs) 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 103 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 104 Peak Discharge (cfs) Bullard Wash at Indian School Road, ID #89507 Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 105 Bullard Wash at Van Buren Street, ID #89207 Site Data LOCATION Located at the northwest corner of Van Buren Street and the Bullard Wash DRAINAGE AREA 88.3 mi2 STREAM TYPE Channelized Natural Wash JURISDICTION Goodyear, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S05 T1N R1W LATITUDE N 33° 27’ 0.4” | +33.4501 LONGITUDE W 112° 22’ 58.0” | -112.38279 ARIZONA STATE PLANE E 557835 | N 891610 USGS QUAD SHEET Perryville 7.5-Minute STREAMGAGE INSTALLATION DATE 12/13/2017 – WY 2018 PERIOD OF AVAILABLE DATA RECORD 12/13/2017 – Current LENGTH OF AVAILABLE DATA RECORD 6.80 Years | 2,484 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.40 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 973.554 feet NAVD88 POINT OF ZERO FLOW 1.50 feet Gage Height EXTREME FOR PERIOD OF RECORD 130 CFS | 2.73 feet GH | 08/14/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 106 Location Map Bullard Wash at Van Buren St. - water year peaks 160 Discharge (cfs) 140 120 100 80 60 40 20 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 107 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 108 Peak Discharge (cfs) Bullard Wash at Van Buren Street, ID #89207 Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 109 Camelback Road at 24th Avenue Basin, ID #6807 Site Data LOCATION Near Camelback Rd and 24th Ave DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S13 T2N R2E LATITUDE N 33° 30’ 35.5” | +33.50986 LONGITUDE W 112° 06’ 37.8” | -112.11050 ARIZONA STATE PLANE E 640920 | N 913100 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 10/08/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/08/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.98 Years | 3,281 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,132.307 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 6.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 110 Location Map FCDMC Annual Surface Water Report, Water Year 2024 Page 111 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 112 Percent Spillway Capacity Camelback Road at 24th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 NOTE: There is no discharge rating for this site at this time. FCDMC Annual Surface Water Report, Water Year 2024 Page 113 Camelback Road at 24th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 114 Camelback Road at 24th Avenue Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.33 MAX 0.33 MIN 0.33 FCDMC Annual Surface Water Report, Water Year 2024 Page 115 CAP Reach #11 Dike #1, ID #8407 Site Data LOCATION Located west of Tatum Blvd. and south of the SR101L freeway DRAINAGE AREA 23.2 mi2 STREAM TYPE Flood control dike JURISDICTION Phoenix, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S30 T4N R4E LATITUDE N 33° 39’ 32.0” | +33.65890 LONGITUDE W 111° 58’ 58.5” | -111.98293 ARIZONA STATE PLANE E 679850 | N 967270 USGS QUAD SHEET Currys Corner 7.5-Minute STREAMGAGE INSTALLATION DATE 07/19/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 07/19/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.20 Years | 2,996 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,526.00 feet NAVD88 POINT OF ZERO FLOW 2.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 29.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 116 Watershed Map CAP Reach 11 Dike #1 - water year peaks 120 Volume (acre-feet) 100 80 60 40 20 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 117 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None NOTE: Percent full is based on 100-year level, as there is no spillway at this location. Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 118 Percent Spillway Capacity CAP Reach 11 Dike #1, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 119 CAP Reach 11 Dike #1, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 120 CAP Reach 11 Dike #1, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 0.00 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 121 CAP Reach #11, Dike #2, ID #58607 Site Data LOCATION Located south of the SR101L freeway west of the 64th Street alignment DRAINAGE AREA 15.7 mi2 STREAM TYPE Flood control dike JURISDICTION Phoenix, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S33 T4N R4E LATITUDE N 33° 38’ 41.8 | +33.64495 LONGITUDE W 111° 56’ 49.7” | -111.94713 ARIZONA STATE PLANE E 690730 | N 962200 USGS QUAD SHEET Currys Corner 7.5-Minute STREAMGAGE INSTALLATION DATE 07/19/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 07/19/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.20 Years | 2,996 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,520.50 feet NAVD88 POINT OF ZERO FLOW 2.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 32.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 122 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 123 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None NOTE: Percent full is based on 100-year level, as there is no spillway at this location. Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 124 Percent Spillway Capacity CAP Reach 11 Dike #2, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 125 CAP Reach 11 Dike #2, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 126 CAP Reach 11 Dike #2, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 0.00 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 127 CAP Reach #11, Dike #3, ID #60107 Site Data LOCATION Located on the CAP dike between Hayden and Pima Roads DRAINAGE AREA 31.7 mi2 STREAM TYPE Flood control dike JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S01 T3N R4E LATITUDE N 33° 38’ 03.0 | +33.63416 LONGITUDE W 111° 54’ 03.0” | -111.90081 ARIZONA STATE PLANE E 704820 | N 958260 USGS QUAD SHEET Currys Corner 7.5-Minute STREAMGAGE INSTALLATION DATE 07/19/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 07/19/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.20 Years | 2,996 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,519.60 feet NAVD88 POINT OF ZERO FLOW 2.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 29.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 128 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 129 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None NOTE: Percent full is based on 100-year level, as there is no spillway at this location. Hydrograph of peak 2024 impoundment event No impoundments recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 130 Percent Spillway Capacity CAP Reach 11 Dike #3, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 131 CAP Reach 11 Dike #3, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 132 CAP Reach 11 Dike #3, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 0.00 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 133 CAP Reach #11, Dike #4, ID #59807 Site Data LOCATION Located near the CAP crossing at Thompson Peak Pkwy. DRAINAGE AREA 26.3 mi2 STREAM TYPE Flood control dike JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S08 T3N R5E LATITUDE N 33° 37’ 23.1 | +33.62307 LONGITUDE W 111° 52’ 02.0” | -111.86722 ARIZONA STATE PLANE E 715050 | N 954230 USGS QUAD SHEET Sawik Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 07/19/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 07/19/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.20 Years | 2,996 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,510.00 feet NAVD88 POINT OF ZERO FLOW 2.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 34.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 134 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 135 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None NOTE: Percent full is based on 100-year level, as there is no spillway at this location. Hydrograph of peak 2024 impoundment event No impoundments were recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 136 Percent Spillway Capacity CAP Reach 11 Dike #4, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 137 CAP Reach 11 Dike #4, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 138 CAP Reach 11 Dike #4, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 0.00 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 139 Casandro Wash, ID #52007 Site Data LOCATION Located near the intersection of Lazy Fox Road and US 60 DRAINAGE AREA 0.58 mi2 STREAM TYPE Culvert / Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S10 T7N R5W LATITUDE N 33° 57’ 43.3” | +33.96204 LONGITUDE W 112° 45’ 55.0” | -112.76528 ARIZONA STATE PLANE E 442700 | N 1078641 USGS QUAD SHEET Vulture Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 07/12/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 07/12/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.22 Years | 11,039 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.73 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,241.736 feet NAVD88 POINT OF ZERO FLOW 1.24 feet Gage Height EXTREME FOR PERIOD OF RECORD 667 cfs | 8.00 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 140 Watershed Map Casandro Wash - water year peaks 800 Discharge (cfs) 700 600 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 141 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 02/02/2024 02/08/2024 03/15/2024 03/31/2024 08/06/2024 Peak Gage Height (feet) 1.82 2.17 1.92 1.92 1.99 1.52 Peak Discharge (cfs) 1 33 2 2 5 0 Hydrograph of peak WY 2024 flow event, 02/02/2024 Flood Flow Frequency FEMA 2-year 5-year 10-year 50-year 100-year 500-year --- --- --- --- 714 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 142 Casandro Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ----5 6 7 8 9 --10 11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 1 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 1 0 33 5 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 1 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 33 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2024 Page 143 Casandro Wash Dam, ID #53007 Site Data LOCATION In Wickenburg north and west of US 60 and Mariposa Avenue DRAINAGE AREA 1.2 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S11 T7N R5W LATITUDE N 33° 58’ 02.8” | +33.96744 LONGITUDE W 112° 44’ 54.7” | -112.74853 ARIZONA STATE PLANE E 447787 | N 1080564 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 08/15/1996 – WY 1996 PERIOD OF AVAILABLE DATA RECORD 08/15/1996 – Current LENGTH OF AVAILABLE DATA RECORD 28.13 Years | 10,274 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.19 feet Gage Height STAFF GAGES 5 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,136.66 feet NAVD88 POINT OF ZERO FLOW 0.25 feet Gage Height SPILLWAY ELEVATION 20.34 feet Gage Height TOP OF DAM ELEVATION 28.75 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 144 Watershed Map Casandro Wash Dam - water year peaks 120 Volume (acre-feet) 100 80 60 40 20 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 145 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 146 Peak Volume (ac-ft) Percent Spillway Capacity Casandro Wash Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 147 Casandro Wash Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 148 Casandro Wash Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.19 MAX 0.19 MIN 0.19 FCDMC Annual Surface Water Report, Water Year 2024 Page 149 Cave Buttes Dam Pool, ID #19517 Site Data LOCATION Located about 1 mile west of Cave Creek Road and ½ mile south of Jomax Road DRAINAGE AREA 195.7 mi2 STREAM TYPE Dam on natural drainage JURISDICTION Phoenix, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S03 T4N R3E LATITUDE N 33° 43’ 01.3” | +33.71702 LONGITUDE W 112° 02’ 40.2” | -112.04451 ARIZONA STATE PLANE E 661140 | N 988432 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 01/25/1984 – WY 1984 PERIOD OF AVAILABLE DATA RECORD 10/01/1987 – Current LENGTH OF AVAILABLE DATA RECORD 37.00 Years | 13,515 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Transducer STAGE GAGE ELEVATION 1.95 feet Gage Height STAFF GAGES 24 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,562.30 feet NAVD88 POINT OF ZERO FLOW (PRINCIPAL OUTLET) 0.00 feet Gage Height POINT OF ZERO FLOW (AUXILIARY OUTLET, GATED) 37.82 feet Gage Height SPILLWAY ELEVATION 97.1 feet Gage Height TOP OF DAM ELEVATION 119.1 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 150 Watershed Map Volume (acre-feet) Cave Buttes Dam Pool - water year peaks 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 151 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 152 Peak Volume (ac-ft) Percent Spillway Capacity Cave Buttes Dam Pool, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 153 Cave Buttes Dam Pool, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 2 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 3 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 4 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 5 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 6 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 7 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 8 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 10 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 11 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 12 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 13 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 14 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 15 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 16 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 17 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 18 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 19 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 20 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 21 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 22 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 23 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 24 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 25 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 26 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 27 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 28 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 29 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 30 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 1.9 1.9 1.9 1.9 31 1.9 --1.9 1.9 --1.9 --1.9 --1.9 1.9 -------------------------------------------------------------------------------MEAN 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 MAX 1.9 1.9 1.9 1.9 1.9 1.9 2.1 1.9 1.9 1.9 1.9 1.9 MIN 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.90 MAX 2.09 MIN 1.90 FCDMC Annual Surface Water Report, Water Year 2024 Page 154 Cave Buttes Dam Outlet, ID #19507 Site Data LOCATION Located about 1 mile west of Cave Creek Road and ½ mile south of Jomax Road DRAINAGE AREA 195.7 mi2 STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S03 T4N R3E LATITUDE N 33° 43’ 01.3” | +33.71702 LONGITUDE W 112° 02’ 40.2” | -112.04451 ARIZONA STATE PLANE E 661140 | N 988432 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 01/25/1984 – WY 1984 PERIOD OF AVAILABLE DATA RECORD 07/30/1992 – Current LENGTH OF AVAILABLE DATA RECORD 32.17 Years | 11,751 Days GAPS IN RECORD None STAGE GAGE TYPE Non-Submersible Transducer STAGE GAGE ELEVATION 0.83 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,558.10 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 522 cfs | 6.43 feet | 08/24/1992 FCDMC Annual Surface Water Report, Water Year 2024 Page 155 Watershed Map Cave Buttes Dam Outlet - water year peaks 450 400 Discharge (cfs) 350 300 250 200 150 100 50 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 156 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/14/2024 3.98 133 Hydrograph of peak WY 2024 flow event, 07/14/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 157 Cave Buttes Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 7 15 24 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 31 0 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 0 0 0 0 0 0 133 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 61 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 31 MEAN 0 MAX 133 MIN 0 AC_FT 61 FCDMC Annual Surface Water Report, Water Year 2024 Page 158 Cave Creek at Ashdale Ranger Station, ID #21307 Site Data LOCATION About 1 mile west of the Seven Springs Campgrounds DRAINAGE AREA 34.4 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S07 T7N R5E LATITUDE N 33° 57’ 44.2” | +33.96228 LONGITUDE W 111° 52’ 33.8” | -111.87605 ARIZONA STATE PLANE E 712291 | N 1077653 USGS QUAD SHEET New River Mesa 7.5-Minute STREAMGAGE INSTALLATION DATE 02/25/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 02/25/2009 – Present LENGTH OF AVAILABLE DATA RECORD 15.60 Years | 5,697 Days GAPS IN RECORD None STAGE GAGE TYPE Transducer STAGE GAGE ELEVATION 1.24 feet Gage Height STAFF GAGES None CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 3,256.778 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height (February 2018) EXTREME FOR PERIOD OF RECORD 8,735 cfs | 11.24 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 159 Watershed Map Cave Creek at Ashdale RS - water year peaks 10,000 9,000 Discharge (cfs) 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 160 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/07/2024 1.47 51 Hydrograph of peak WY 2024 flow event, 02/07/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 161 Cave Creek at Ashdale RS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 22 8 18 9 12 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 52 0 0 0 0 0 0 0 MEAN 0 0 0 0 2 0 0 0 0 0 0 0 MAX 0 0 0 0 51 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 103 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 52 MEAN 0 MAX 51 MIN 0 AC_FT 103 FCDMC Annual Surface Water Report, Water Year 2024 Page 162 Cave Creek at Spur Cross, ID #20707 Site Data LOCATION Near the Spur Cross Conservation Area DRAINAGE AREA 72.9 mi2 STREAM TYPE Natural Stream JURISDICTION Cave Creek, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S04 T6N R4E LATITUDE N 33° 53’ 16.6” | +33.88793 LONGITUDE W 111° 57’ 12.8” | -111.95355 ARIZONA STATE PLANE E 688805 | N 1050604 USGS QUAD SHEET Cave Creek 7.5-Minute STREAMGAGE INSTALLATION DATE 06/16/1993 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 06/16/1993 – Current LENGTH OF AVAILABLE DATA RECORD 31.29 Years | 11,430 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Transducer STAGE GAGE ELEVATION 2.64 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,260.026 feet NAVD88 POINT OF ZERO FLOW 2.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 14,000 cfs | 16.40 feet | 09/03/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 163 Watershed Map Cave Creek near Spur Cross - water year peaks 16,000 Discharge (cfs) 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 164 2015 2020 2025 WY2024 Events Date of Peak 02/09/2024 04/01/2024 Peak Gage Height (feet) 3.95 3.48 Hydrograph of peak WY 2024 flow event, 02/09/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 165 Peak Discharge (cfs) 75 17 Cave Creek at Spur Cross, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --4 14 2 --4 15 3 --4 11 4 --4 9 2 5 --4 8 1 6 --4 7 1 7 32 5 7 8 42 6 6 9 56 6 5 10 24 6 5 11 16 5 4 12 11 4 4 13 9 4 3 14 7 5 3 15 6 6 3 16 6 7 2 17 5 7 2 18 5 7 2 19 4 6 2 20 4 6 1 21 4 6 1 22 4 5 23 4 5 24 4 7 25 4 7 26 4 7 27 5 7 28 4 6 29 4 6 30 --5 31 ----6 -----------------------------------------------------------------------------------TOTAL 0 0 0 0 265 173 112 4 0 0 0 0 MEAN 0 0 0 0 9 6 4 0 0 0 0 0 MAX 0 0 0 0 73 9 17 2 0 0 0 0 MIN 0 0 0 0 0 4 0 0 0 0 0 0 AC_FT 0 0 0 0 526 344 223 8 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 555 MEAN 2 MAX 73 MIN 0 AC_FT 1101 FCDMC Annual Surface Water Report, Water Year 2024 Page 166 Cave Creek, ID #19007 Site Data LOCATION In Cave Creek near Rancho Manana DRAINAGE AREA 115.8 mi2 STREAM TYPE Natural Stream JURISDICTION Cave Creek, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S29 T6N R4E LATITUDE N 33° 49’ 48.9” | +33.83024 LONGITUDE W 111° 58’ 04.0” | -111.96778 ARIZONA STATE PLANE N 1029539 | E 684512 USGS QUAD SHEET Cave Creek 7.5-Minute STREAMGAGE INSTALLATION DATE 05/28/2003 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 05/28/2003 – Current LENGTH OF AVAILABLE DATA RECORD 21.35 Years | 7,797 Days GAPS IN RECORD None STAGE GAGE TYPE Transducer STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,989.199 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 17,190 cfs | 12.75 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 167 Watershed Map Discharge (cfs) Cave Creek - water year peaks 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 168 2020 2025 WY2024 Events Date of Peak 11/18/2023 02/07/2024 02/09/2024 04/01/2024 Peak Gage Height (feet) 0.94 0.82 1.02 1.71 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 169 Peak Discharge (cfs) 2 1 3 23 Cave Creek, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 7 --2 5 3 4 4 2 ----5 1 6 7 8 9 1 10 1 11 12 13 14 --15 16 17 18 --19 --20 --21 ----22 23 24 25 26 --27 28 29 30 ----31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 2 0 24 0 0 0 0 0 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 MAX 0 2 0 0 3 0 23 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 4 0 48 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 28 MEAN 0 MAX 23 MIN 0 AC_FT 53 FCDMC Annual Surface Water Report, Water Year 2024 Page 170 Cave Creek near Cave Creek, ID #20507 Site Data LOCATION About 1 mile south of Carefree Highway DRAINAGE AREA 123.4 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S12 T5N R3E LATITUDE N 33° 47’ 09.0” | +33.78582 LONGITUDE W 112° 00’ 26.1” | -112.00726 ARIZONA STATE PLANE E 672443 | N 1013430 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 05/27/1994 – WY 1994 (USGS gaged since 1958) PERIOD OF AVAILABLE DATA RECORD 05/27/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.35 Years | 11,085 Days GAPS IN RECORD 11/30/2009 – 06/16/2010 | 09/08/2013 – 10/28/2013 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,801.90 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD (FCD) 15,850 cfs | 10.65 feet | 08/19/2014 EXTREME FOR PERIOD OF RECORD (USGS) 13,800 cfs | 10.7 feet | 01/08/1993 FCDMC Annual Surface Water Report, Water Year 2024 Page 171 Watershed Map Cave Creek near Cave Creek - water year peaks 16,000 Discharge (cfs) 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 172 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 04/01/2024 0.63 0 Hydrograph of peak WY 2024 flow event, 04/01/2024 *Streamflow is not recorded until gage height elevation is above 0.8 ft FCDMC Annual Surface Water Report, Water Year 2024 Page 173 Cave Creek near Cave Creek, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 174 Cave Creek at CAP, ID #19807 Site Data LOCATION Located about 1 mile downstream of Cave Buttes Dam DRAINAGE AREA 198 mi2 STREAM TYPE Concrete Overchute JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S16 T4N R3E LATITUDE N 33° 41’ 38.0” | +33.69389 LONGITUDE W 112° 03’ 04.0” | -112.05111 ARIZONA STATE PLANE E 659096 | N 980047 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 04/14/2014 – WY 2014 PERIOD OF AVAILABLE DATA RECORD 04/14/2014 – Current LENGTH OF AVAILABLE DATA RECORD 10.47 Years | 3,823 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,507.486 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 146 cfs | 0.92 feet | 08/20/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 175 Watershed Map Cave Creek at CAP - water year peaks 500 450 Discharge (cfs) 400 350 300 250 200 150 100 50 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 176 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 177 Peak Discharge (cfs) Cave Creek at CAP, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 178 Cave Creek near Union Hills Drive, ID #8007 Site Data LOCATION Located about a quarter mile north of Union Hills Drive DRAINAGE AREA 7.1 mi2 STREAM TYPE Natural JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S29 T4N R3E LATITUDE N 33° 39’ 31.9” | +33.65885 LONGITUDE W 112° 04’ 29.0” | -112.07472 ARIZONA STATE PLANE E 651910 | N 967290 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 03/03/2022 – WY 2022 PERIOD OF AVAILABLE DATA RECORD 03/03/2022 – Current LENGTH OF AVAILABLE DATA RECORD 2.58 Years | 943 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.90 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,405.000 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 248 cfs | 2.63 feet | 07/30/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 179 Watershed Map Cave Creek near Union Hills Drive - water year peaks 250 Discharge (cfs) 245 240 235 230 225 220 215 210 2020 2025 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 180 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 181 Peak Discharge (cfs) Cave Creek near Union Hills Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 182 Cave Creek at Cactus Road, ID #11807 Site Data LOCATION Near Cactus Road and 25th Avenue DRAINAGE AREA 33.6 mi2 (below Cave Buttes Dam) STREAM TYPE Basin / Outlet / Weir JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S13 T3N R2E LATITUDE N 33° 35’ 58.9” | +33.59969 LONGITUDE W 112° 06’ 43.2” | -112.11201 ARIZONA STATE PLANE E 640515 | N 945776 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 06/27/1991 – WY 1991 PERIOD OF AVAILABLE DATA RECORD 06/27/1991 – Current LENGTH OF AVAILABLE DATA RECORD 33.26 Years | 12,150 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,259.361 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 6,665 cfs | 13.16 feet | 07/30/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 183 Watershed Map Cave Creek at Cactus - water year peaks 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 184 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 02/08/2024 04/01/2024 07/01/2024 08/18/2024 Peak Gage Height (feet) 2.36 2.46 3.46 1.46 7.64 0.85 0.87 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 185 Peak Discharge (cfs) 48 52 93 20 203 8 9 Cave Creek at Cactus Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 119 1 2 50 35 3 1 2 4 5 6 7 8 8 6 1 9 9 10 2 11 12 13 14 15 16 17 1 2 18 2 1 19 20 21 1 22 5 23 13 15 24 3 4 25 26 27 28 29 30 ------4 ------31 -----------------------------------------------------------------------------TOTAL 0 3 18 17 78 11 156 0 0 1 2 0 MEAN 0 0 1 1 3 0 5 0 0 0 0 0 MAX 0 8 48 52 93 9 203 0 0 8 9 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 6 35 34 154 22 309 0 0 1 3 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 285 MEAN 1 MAX 203 MIN 0 AC_FT 566 FCDMC Annual Surface Water Report, Water Year 2024 Page 186 Centennial Wash near Aguila, ID #29007 Site Data LOCATION Along the Arizona and California Railroad east of SR 71 DRAINAGE AREA 93.4 mi2 STREAM TYPE Levee on natural drainage JURISDICTION Maricopa County, Arizona WATERSHED Upper Centennial SECTION/TOWNSHIP/RANGE S11 T7N R8W LATITUDE N 33° 58’ 00.3” | +33.96675 LONGITUDE W 113° 04’ 07.9” | -113.06887 ARIZONA STATE PLANE E 350652 | N 1081250 USGS QUAD SHEET Forepaugh Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 06/05/2001 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 06/05/2001 – Current LENGTH OF AVAILABLE DATA RECORD 23.32 Years | 8,519 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,272.84 feet NAVD 1988 POINT OF ZERO FLOW -0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 606 cfs | 3.37 feet | 01/21/2010 FCDMC Annual Surface Water Report, Water Year 2024 Page 187 Watershed Map Centennial Wash near Aguila - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 2010 2015 Water Years FCDMC Annual Surface Water Report, Water Year 2024 Page 188 2020 2025 WY2024 Events Date of Peak 11/17/2023 12/22/2023 01/23/2024 02/01/2024 02/06/2024 Peak Gage Height 0.54 0.79 0.62 0.87 1.07 Hydrograph of peak WY 2024 flow event, 02/06/2024 * Break occurred during end of event FCDMC Annual Surface Water Report, Water Year 2024 Page 189 Peak Discharge (cfs) 13 23 16 26 34 Centennial Wash near Aguila, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 4 2 13 1 3 1 4 2 5 1 6 6 7 15 2 1 8 14 1 9 13 3 10 --11 --12 13 14 15 3 16 3 17 6 18 7 1 19 20 21 22 7 23 9 4 24 25 26 27 28 29 30 ------2 ------31 -----------------------------------------------------------------------------TOTAL 0 7 17 5 92 20 5 0 0 0 6 0 MEAN 0 0 1 0 3 1 0 0 0 0 0 0 MAX 0 13 23 16 34 11 7 0 0 0 9 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 15 33 9 182 40 11 0 0 0 11 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 152 MEAN 0 MAX 34 MIN 0 AC_FT 301 FCDMC Annual Surface Water Report, Water Year 2024 Page 190 Centennial Wash at Wenden, ID #27507 Site Data LOCATION In La Paz County on the eastern side of Wenden DRAINAGE AREA 592 mi2 STREAM TYPE Natural Stream JURISDICTION La Paz County WATERSHED Upper Centennial SECTION/TOWNSHIP/RANGE S32 T6N R12W LATITUDE N 33° 49’ 27.2” | +33.82423 LONGITUDE W 113° 32’ 01.3” | -113.53368 ARIZONA STATE PLANE E 209195 | N 1031146 USGS QUAD SHEET Salome 7.5-Minute STREAMGAGE INSTALLATION DATE 09/16/1998 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 09/16/1998 – Current LENGTH OF AVAILABLE DATA RECORD 26.04 Years | 9,512 Days GAPS IN RECORD 12/01/2002 – 07/07/2004 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,857.914 feet NAVD88 POINT OF ZERO FLOW -1.7 feet Gage Height EXTREME FOR PERIOD OF RECORD 24,250 cfs | 7.82 feet | 10/22/2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 191 Watershed Map Centennial Wash at Wenden - water year peaks 30,000 Discharge (cfs) 25,000 20,000 15,000 10,000 5,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 192 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None *station non operational due to bridge construction Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 193 Peak Discharge (cfs) Centennial Wash at Wenden, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------------------------2 ------------------------3 ------------------------4 ------------------------5 ------------------------6 ------------------------7 ------------------------8 ------------------------9 ------------------------10 ------------------------11 ------------------------12 ------------------------13 ------------------------14 ------------------------------------------------15 16 ------------------------17 ------------------------18 ------------------------19 ------------------------20 ------------------------21 ------------------------22 ------------------------23 ------------------------24 ------------------------25 ------------------------26 ------------------------27 ------------------------28 ------------------------29 ------------------------30 ------------------------31 -----------------------------------------------------------------------------------------------------TOTAL ------------------------MEAN ------------------------MAX ------------------------MIN ------------------------AC_FT -----------------------------------------------------------------------------------------------------WTR YR 2024 TOTAL --- MEAN --- MAX --- MIN --- AC_FT --*Station down due to construction FCDMC Annual Surface Water Report, Water Year 2024 Page 194 Centennial Levee, ID #25707 Site Data LOCATION Located in western Maricopa County, southwest of Salome Road and I-10 DRAINAGE AREA 20 mi2 STREAM TYPE Levee on natural drainage JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S17 T2N R10W LATITUDE N 33° 31’ 09.9” | +33.51942 LONGITUDE W 113° 15’ 37.8” | -113.26049 ARIZONA STATE PLANE E 290435 | N 919177 USGS QUAD SHEET Courthouse Well 7.5-Minute STREAMGAGE INSTALLATION DATE 07/09/2003 – WY 2003 PERIOD OF AVAILABLE DATA RECORD 07/09/2003 – Current LENGTH OF AVAILABLE DATA RECORD 21.23 Years | 7,755 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,260.701 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,000 cfs | 4.50 feet | 09/09/2013 FCDMC Annual Surface Water Report, Water Year 2024 Page 195 Watershed Map Centennial Levee - water year peaks 1,200 Axis Title 1,000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 196 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 12/22/2023 1.20 39 Hydrograph of peak WY 2024 flow event, 12/22/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 197 Centennial Levee, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 7 23 14 24 --25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 21 0 0 0 0 0 0 0 0 0 MEAN 0 0 1 0 0 0 0 0 0 0 0 0 MAX 0 0 39 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 42 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 21 MEAN 0 MAX 39 MIN 0 AC_FT 42 FCDMC Annual Surface Water Report, Water Year 2024 Page 198 Centennial Railroad, ID #24707 Site Data LOCATION Located about 6 miles west of Arlington DRAINAGE AREA 1,681 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S28 T1S R6W LATITUDE N 33° 18’ 35.6” | +33.30986 LONGITUDE W 112° 52’ 58.4” | -112.88289 ARIZONA STATE PLANE E 404871 | N 841671 USGS QUAD SHEET Gillespie 7.5-Minute STREAMGAGE INSTALLATION DATE 02/09/1990 – WY 1990 PERIOD OF AVAILABLE DATA RECORD 02/09/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.64 Years | 12,653 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 4.95 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 839.038 feet NAVD88 POINT OF ZERO FLOW 5.3 feet Gage Height (about 100 feet downstream) EXTREME FOR PERIOD OF RECORD 9,616 cfs | 9.10 feet | 02/08/1993 EXTREME OUTSIDE PERIOD OF RECORD 15,600 cfs | 09/02/1984 FCDMC Annual Surface Water Report, Water Year 2024 Page 199 Watershed Map Centennial at UPRR - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 200 2015 2020 2025 WY2024 Events Date of Peak 01/23/2024 07/25/2024 Peak Gage Height (feet) 5.84 7.22 Hydrograph of peak WY 2024 flow event, 07/25/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 201 Peak Discharge (cfs) 0 122 Centennial Railroad, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 4 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 4 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 122 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 8 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 4 MEAN 0 MAX 122 MIN 0 AC_FT 8 FCDMC Annual Surface Water Report, Water Year 2024 Page 202 Centennial Tributary at Dobbins Road, ID #22807 Site Data LOCATION Located near the intersection of Dobbins Road and 435th Avenue DRAINAGE AREA 2.47 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S05 T1S R7W LATITUDE N 33° 21’ 49.1” | +33.36364 LONGITUDE W 112° 59’ 35.6” | -112.99321 ARIZONA STATE PLANE E 371310 | N 861537 USGS QUAD SHEET Gillespie 7.5-Minute STREAMGAGE INSTALLATION DATE 09/26/2012 – WY 2012 PERIOD OF AVAILABLE DATA RECORD 10/01/2012 – Current LENGTH OF AVAILABLE DATA RECORD 12.00 Years | 4,383 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,006.163 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 269 cfs | 2.82 feet | 03/01/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 203 Watershed Map Centennial Tributary at Dobbins Road - water year peaks 300 Discharge (cfs) 250 200 150 100 50 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 204 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 205 Peak Discharge (cfs) Centennial Tributary at Dobbins Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 1 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 30 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 2 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 30 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2024 Page 206 Cline Creek, ID #66007 Site Data LOCATION Located about 1 mile north of Circle Mountain Road just off 12th Street DRAINAGE AREA 10.8 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S33 T7N R3E LATITUDE N 33° 54’ 03.5” | +33.90097 LONGITUDE W 112° 03’ 17.9” | -112.05497 ARIZONA STATE PLANE E 658034 | N 1055380 USGS QUAD SHEET Daisy Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 11/20/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 11/20/2001 – Current LENGTH OF AVAILABLE DATA RECORD 21.86 Years | 7,985 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,171.07 feet NAVD 1988 POINT OF ZERO FLOW -0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,850 cfs | 8.15 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 207 Watershed Map Cline Creek - water year peaks 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 208 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 209 Peak Discharge (cfs) Cline Creek, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 4 3 4 ----5 6 2 7 4 8 3 9 10 11 12 13 14 15 16 17 18 19 20 21 2 22 3 4 23 3 4 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 8 10 13 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 15 9 15 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 16 19 25 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 30 MEAN 0 MAX 15 MIN 0 AC_FT 60 FCDMC Annual Surface Water Report, Water Year 2024 Page 210 Colter Channel at El Mirage Road, ID #85507 Site Data LOCATION Located on El Mirage Road north of Camelback Road DRAINAGE AREA 3.5 mi2 STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED White Tanks A SECTION/TOWNSHIP/RANGE S13 T2N R1W LATITUDE N 33° 30’ 41.1” | +33.51141 LONGITUDE W 112° 19’ 25.6” | -112.32376 ARIZONA STATE PLANE E 575915 | N 913851 USGS QUAD SHEET El Mirage 7.5-Minute STREAMGAGE INSTALLATION DATE 06/29/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 06/29/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.26 Years | 11,052 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,025.073 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 158 cfs | 1.52 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 211 Watershed Map Colter Channel at El Mirage Road - water year peaks 180 160 Discharge (cfs) 140 120 100 80 60 40 20 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 212 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 04/01/2024 Peak Gage Height (feet) 0.45 0.53 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 213 Peak Discharge (cfs) 21 25 Colter Channel, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 5 2 1 3 4 5 6 7 1 8 9 10 11 12 13 14 15 16 17 18 2 19 20 21 22 1 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 2 1 0 2 1 5 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 21 7 0 15 15 25 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 4 1 0 4 2 10 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 11 MEAN 0 MAX 25 MIN 0 AC_FT 22 FCDMC Annual Surface Water Report, Water Year 2024 Page 214 Columbus Wash, ID #40807 Site Data LOCATION Located at the east edge of Yuma County in the Hyder Valley DRAINAGE AREA 25.4 mi2 STREAM TYPE Encroached Natural Stream JURISDICTION Yuma County, Arizona WATERSHED Lower Gila SECTION/TOWNSHIP/RANGE S06 T4S R10W LATITUDE N 33° 06’ 45.7” | +33.11268 LONGITUDE W 113° 20’ 22.1” | -113.33946 ARIZONA STATE PLANE E 266348 | N 771489 USGS QUAD SHEET Hyder SE 7.5-Minute STREAMGAGE INSTALLATION DATE 09/22/1999 – WY 1999 PERIOD OF AVAILABLE DATA RECORD 09/22/1999 – Current LENGTH OF AVAILABLE DATA RECORD 25.03 Years | 9,141 Days GAPS IN RECORD 12/18/2012 – 01/07/2013 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.95 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 713.583 feet NAVD 1988 POINT OF ZERO FLOW 1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 615 cfs | 2.45 feet | 09/04/2012 FCDMC Annual Surface Water Report, Water Year 2024 Page 215 Watershed Map Columbus Wash - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 216 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 12/22/2023 3.09 219 Hydrograph of peak WY 2024 flow event, 12/22/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 217 Columbus Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 25 23 --24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 25 0 0 0 0 0 0 0 0 0 MEAN 0 0 1 0 0 0 0 0 0 0 0 0 MAX 0 0 355 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 50 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 25 MEAN 0 MAX 355 MIN 0 AC_FT 50 FCDMC Annual Surface Water Report, Water Year 2024 Page 218 Copper Wash, ID #41007 Site Data LOCATION Located in western Maricopa County near the Hyder Valley DRAINAGE AREA 6.4 mi2 (from USGS Streamstats) STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Gila SECTION/TOWNSHIP/RANGE S33 T2S R10W LATITUDE N 33° 12’ 20.0” | +33.20557 LONGITUDE W 113° 17’ 05.4” | -113.28483 ARIZONA STATE PLANE E 281517 | N 805122 USGS QUAD SHEET Hyder NE 7.5-Minute STREAMGAGE INSTALLATION DATE 02/20/2001 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 02/20/2001 – Current LENGTH OF AVAILABLE DATA RECORD 23.61 Years | 8,624 Days GAPS IN RECORD 08/27/2003 – 09/04/2003 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,064.00 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,780 cfs | 5.69 feet | 08/27/2003 FCDMC Annual Surface Water Report, Water Year 2024 Page 219 Watershed Map Copper Wash - water year peaks 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 220 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 12/22/2023 1.35 76 Hydrograph of peak WY 2024 flow event, 12/22/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 221 Copper Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 5 23 --24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 5 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 76 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 10 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 5 MEAN 0 MAX 76 MIN 0 AC_FT 10 FCDMC Annual Surface Water Report, Water Year 2024 Page 222 Crossroads Park Basin, ID #33007 Site Data LOCATION Near Greenfield and Ray Roads DRAINAGE AREA 15.7 mi2 STREAM TYPE Flood control basin JURISDICTION Gilbert, Arizona WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S21 T1S R6E LATITUDE N 33° 19’ 39.7” | +33.32770 LONGITUDE W 111° 44’ 47.9” | -111.74665 ARIZONA STATE PLANE E 751918 | N 846798 USGS QUAD SHEET Higley 7.5-Minute STREAMGAGE INSTALLATION DATE 12/18/1995 – WY 1996 PERIOD OF AVAILABLE DATA RECORD 12/18/1995 – Current LENGTH OF AVAILABLE DATA RECORD 28.79 Years | 10,515 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.33 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,248.46 feet NAVD88 POINT OF ZERO FLOW None – Pump Control SPILLWAY CREST ELEVATION 22.3 feet Gage Height TOP OF BASIN ELEVATION 23.3 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 223 Location Map Crossroads Park Basin - water year peaks 40 Volume (acre-feet) 35 30 25 20 15 10 5 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 224 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 225 Peak Volume (ac-ft) Percent Spillway Capacity Crossroads Park, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 6 7 8 ----9 10 --11 --12 13 14 15 16 --17 --18 19 --20 2 --21 --22 23 --24 25 26 27 --28 29 30 --------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 11 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 11 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 226 Crossroads Park Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 2 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 5 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 0.0 1.3 0.0 6 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 7 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 8 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 9 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 1.3 0.0 --1.3 10 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 11 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 12 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 13 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 14 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 15 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 16 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 17 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --18 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 19 1.3 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 20 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --21 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --22 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 0.0 1.3 1.3 23 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 24 1.3 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 25 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 0.0 1.3 26 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 27 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 1.3 28 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 29 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 30 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 --1.3 1.3 1.3 31 1.3 --1.3 1.3 --1.3 --1.3 --1.3 1.3 -------------------------------------------------------------------------------MEAN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MAX 1.3 1.3 1.3 1.5 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MIN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.33 MAX 1.50 MIN 1.33 FCDMC Annual Surface Water Report, Water Year 2024 Page 227 Cruff Wash, ID #23707 Site Data LOCATION Located about 7 miles west of Old US80 south of Agua Caliente Road DRAINAGE AREA 13.2 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S20 T2S R6W LATITUDE N 33° 15’ 04.0” | +33.25111 LONGITUDE W 112° 52’ 54.5” | -112.88180 ARIZONA STATE PLANE E 404950 | N 820256 USGS QUAD SHEET Woolsey Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 05/14/2002 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 05/14/2002 – Current LENGTH OF AVAILABLE DATA RECORD 22.38 Years | 8,176 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.60 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 937.356 feet NAVD88 POINT OF ZERO FLOW 0.8 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,627 cfs | 4.73 feet | 03/12/2020 FCDMC Annual Surface Water Report, Water Year 2024 Page 228 Watershed Map Cruff Wash - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 229 2020 2025 WY2024 Events Date of Peak 07/25/2024 08/03/2024 Peak Gage Height (feet) 2.59 3.91 Hydrograph of peak WY 2024 flow event, 08/03/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 230 Peak Discharge (cfs) 206 857 Cruff Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 29 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 4 26 27 28 29 ----30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 4 29 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 206 857 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 7 58 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 33 MEAN 0 MAX 857 MIN 0 AC_FT 65 FCDMC Annual Surface Water Report, Water Year 2024 Page 231 Daggs Wash, ID #48507 Site Data LOCATION Near 307th Avenue and Peak View Road DRAINAGE AREA 12.9 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S25 T5N R5W LATITUDE N 33° 44’ 45.2” | +33.74590 LONGITUDE W 112° 43’ 30.2” | -112.72506 ARIZONA STATE PLANE E 454274 | N 999885 USGS QUAD SHEET Daggs Tank 7.5-Minute STREAMGAGE INSTALLATION DATE 11/08/2007 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 11/08/2007 – Current LENGTH OF AVAILABLE DATA RECORD 16.90 Years | 6,172 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,668.55 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 852 cfs | 2.74 feet Gage Height | 09/23/2019 FCDMC Annual Surface Water Report, Water Year 2024 Page 232 Watershed Maps Daggs Wash - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 233 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 06/25/2024 0.89 190 Hydrograph of peak WY 2024 flow event, 06/25/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 234 Daggs Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 3 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 3 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 190 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 6 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 190 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2024 Page 235 Deadman Wash @ Loop 303, ID #62107 Site Data LOCATION On the eastbound Loop 303 bridge DRAINAGE AREA 20.1 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Upper New River SECTION/TOWNSHIP/RANGE S18 T5N R2E LATITUDE N 33° 46’ 52.6” | +33.78128 LONGITUDE W 112° 11’ 37.7” | -112.19381 ARIZONA STATE PLANE E 615780 | N 1011920 USGS QUAD SHEET Biscuit Flat 7.5-Minute STREAMGAGE INSTALLATION DATE 10/17/2019 – WY 2020 PERIOD OF AVAILABLE DATA RECORD 10/17/2019 – Current LENGTH OF AVAILABLE DATA RECORD 4.96 Years | 1,811 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,533.000 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,607 cfs | 3.28 feet Gage Height | 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 236 Watershed Map Discharge (cfs) Deadman Wash at SR303L - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 237 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 238 Peak Discharge (cfs) Deadman Wash at SR303L, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 --21 ----22 --23 --24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 239 Delaney Wash, ID #25007 Site Data LOCATION Near Salome Road and 427th Avenue DRAINAGE AREA 49.9 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S34 T2N R7W LATITUDE N 33° 28’ 08.3” | +33.46897 LONGITUDE W 112° 58’ 10.4” | -112.96955 ARIZONA STATE PLANE E 376615 | N 900113 USGS QUAD SHEET Tonopah 7.5-Minute STREAMGAGE INSTALLATION DATE 12/22/1999 – WY 2000 PERIOD OF AVAILABLE DATA RECORD 12/22/1999 – Current LENGTH OF AVAILABLE DATA RECORD 24.78 Years | 9,050 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,112.030 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,800 cfs | 8.06 feet | 09/09/2013 FCDMC Annual Surface Water Report, Water Year 2024 Page 240 Watershed Map Delaney Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 241 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 12/22/2023 0.92 36 Hydrograph of peak WY 2024 flow event, 12/22/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 242 Delaney Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 1 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 36 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 3 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 36 MIN 0 AC_FT 3 FCDMC Annual Surface Water Report, Water Year 2024 Page 243 Desert Hills Wash, ID #19307 Site Data LOCATION Located west of 16th Street, on Joy Ranch Road DRAINAGE AREA 0.95 mi2 STREAM TYPE Culvert on natural stream JURISDICTION Maricopa County, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S28 T6N R3E LATITUDE N 33° 49’ 41.6” | +33.82882 LONGITUDE W 112° 02’ 54.0” | -112.04832 ARIZONA STATE PLANE E 660010 | N 1028895 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 03/02/2006 – WY 2006 PERIOD OF AVAILABLE DATA RECORD 03/02/2006 – Current LENGTH OF AVAILABLE DATA RECORD 18.58 Years | 6,788 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,856.018 feet NAVD88 POINT OF ZERO FLOW 0.55 feet Gage Height EXTREME FOR PERIOD OF RECORD 383 cfs | 6.21 feet | 07/23/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 244 Watershed Map Desert Hills Wash - water year peaks 450 400 Discharge (cfs) 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 245 2020 2025 WY2024 Events Date of Peak 11/18/2023 04/01/2024 Peak Gage Height (feet) 0.64 1.13 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 246 Peak Discharge (cfs) 15 34 Desert Hills Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 1 0 0 0 0 3 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 14 0 0 0 0 34 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 2 0 0 0 0 6 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 4 MEAN 0 MAX 34 MIN 0 AC_FT 8 FCDMC Annual Surface Water Report, Water Year 2024 Page 247 Dreamy Draw Dam, ID #9807 Site Data LOCATION Located near Northern Avenue and SR 51 DRAINAGE AREA 1.35 mi2 JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S34 T3N R3E LATITUDE N 33° 33’ 43.8” | +33.56217 LONGITUDE W 112° 01’ 53.7” | -112.03159 ARIZONA STATE PLANE E 665000 | N 932093 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 01/24/1984 – WY 1984 PERIOD OF AVAILABLE DATA RECORD 08/29/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.09 Years | 13,182 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.12 feet Gage Height STAFF GAGES 9 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,371.46 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 35.50 feet Gage Height TOP OF DAM ELEVATION 48.18 feet Gage Height NORMAL DRAWDOWN RATE (BELOW SPILLWAY) -0.8 feet per hour FCDMC Annual Surface Water Report, Water Year 2024 Page 248 Watershed Map Dreamy Draw Dam - water year peaks 40 Volume (acre-feet) 35 30 25 20 15 10 5 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 249 2010 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 01/23/2024 02/08/2024 04/01/2024 Peak Gage Height (feet) 1.00 2.02 0.90 6.42 Peak Volume (ac-ft) 0.1 0.1 0.0 1.1 Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 250 Percent Spillway Capacity 0.0% 0.0% 0.0% 0.4% Dreamy Draw Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 3 3 3 4 2 5 2 6 2 7 1 1 8 3 9 1 10 11 12 13 14 15 16 17 18 19 20 21 22 1 23 3 2 24 3 2 25 3 26 2 27 1 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 12 5 5 0 21 0 0 0 0 0 MEAN 0 0 0 0 0 0 1 0 0 0 0 0 MAX 0 0 7 23 6 23 97 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 24 9 10 1 42 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 43 MEAN 0 MAX 97 MIN 0 AC_FT 86 FCDMC Annual Surface Water Report, Water Year 2024 Page 251 Dreamy Draw Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 252 Dreamy Draw Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.9 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.4 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 1.0 2.0 0.9 2.0 6.4 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.13 MAX 6.42 MIN 0.12 FCDMC Annual Surface Water Report, Water Year 2024 Page 253 Dysart Drain at LAFB, ID #85807 Site Data LOCATION On Dysart Drain about 1/3 mile east of Litchfield Road DRAINAGE AREA 24.3 mi2 STREAM TYPE Engineered Channel JURISDICTION Glendale, Arizona WATERSHED White Tanks A SECTION/TOWNSHIP/RANGE S03 T2N R1W LATITUDE N 33° 32’ 38.3” | +33.54397 LONGITUDE W 112° 20’ 57.8” | -112.34940 ARIZONA STATE PLANE E 568152 | N 925728 USGS QUAD SHEET El Mirage 7.5-Minute STREAMGAGE INSTALLATION DATE 08/22/1996 – WY 1996 PERIOD OF AVAILABLE DATA RECORD 08/22/1996 – Current LENGTH OF AVAILABLE DATA RECORD 28.11 Years | 10,267 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,063.482 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 862 cfs | 4.30 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 254 Watershed Map Discharge (cfs) Dysart Drain at LAFB - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 255 2015 2020 2025 WY2024 Events Date of Peak 03/07/2024 04/01/2024 Peak Gage Height (feet) 1.06 0.86 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 256 Peak Discharge (cfs) 57 38 Dysart Drain at LAFB, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 2 3 4 5 6 7 1 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 1 3 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 57 38 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 3 5 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 4 MEAN 0 MAX 57 MIN 0 AC_FT 8 FCDMC Annual Surface Water Report, Water Year 2024 Page 257 East Fork Cave Creek Basin #1, ID #7807 Site Data LOCATION On Beardsley Road east of Cave Creek Road DRAINAGE AREA 1.18 mi2 STREAM TYPE Flood control basin on natural stream JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S26 T4N R3E LATITUDE N 33° 40’ 11.3” | +33.66981 LONGITUDE W 112° 01’ 31.3” | -112.02536 ARIZONA STATE PLANE E 666927 | N 971254 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 03/02/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 03/02/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.58 Years | 11,171 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.23 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,489.95 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 7.16 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 258 Watershed Map EFCC Basin #1 - water year peaks 30 Volume (acre-feet) 25 20 15 10 5 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 259 2015 2020 2025 WY2024 Events Date of Peak 04/01/2024 07/14/2024 Peak Gage Height (feet) 1.15 1.30 Peak Volume (ac-ft) 0.8 1.4 Hydrograph of peak WY 2024 impoundment event, 07/14/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 260 Percent Spillway Capacity 1.8% 3.1% East Fork Cave Creek Basin #1, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 0 1 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 2 3 5 3 3 13 0 0 16 4 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 1 0 1 0 0 1 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 16 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2024 Page 261 East Fork Cave Creek Basin #1, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 1 0 0 1 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 262 East Fork Cave Creek Basin #1, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.5 0.5 0.6 0.5 0.5 1.1 0.2 0.2 1.3 0.6 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.23 MAX 1.30 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2024 Page 263 East Fork Cave Creek Basin #3A, ID #8807 Site Data LOCATION Located near 22nd Street and East Grovers Avenue DRAINAGE AREA 3.5 mi2 STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S34 T4N R3E LATITUDE N 33° 38’ 46.0” | +33.64630 LONGITUDE W 112° 02’ 21.0” | -112.03840 ARIZONA STATE PLANE E 662900 | N 962700 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/14/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/14/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.97 Years | 3,275 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.90 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,425.270 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 14.8 feet Gage Height TOP OF BASIN ELEVATION 15.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 264 Watershed Map EFCC Basin #3a - water year peaks 40.0 Volume (acre-feet) 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 2015 2016 2017 2018 2019 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 265 2021 2022 2023 2024 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 266 Percent Spillway Capacity EFCC Basin #3A, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 267 EFCC Basin #3A, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 268 EFCC Basin #3A, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 2 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 3 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 4 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 5 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 6 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 7 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 9 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 10 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 11 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 12 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 13 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 14 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 15 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 16 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 17 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 18 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 19 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 20 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 21 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 22 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 23 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 24 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 25 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 26 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 27 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 28 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 29 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 30 0.8 0.8 0.8 0.9 --0.9 0.9 0.9 0.9 0.9 0.9 0.9 31 0.8 --0.8 0.9 --0.9 --0.9 --0.9 0.9 -------------------------------------------------------------------------------MEAN 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 MAX 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 MIN 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.87 MAX 0.90 MIN 0.80 FCDMC Annual Surface Water Report, Water Year 2024 Page 269 East Fork Cave Creek Basin #3B, ID #8707 Site Data LOCATION Near 20th Street and Grovers Avenue DRAINAGE AREA 3.52 mi2 STREAM TYPE Flood control basin on natural stream JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S34 T4N R3E LATITUDE N 33° 38’ 45.9” | +33.64609 LONGITUDE W 112° 02’ 21.1” | -112.03918 ARIZONA STATE PLANE E 662716 | N 962630 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 09/13/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 09/13/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.05 Years | 10,976 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,419.45 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No Defined Spillway MINIMUM TOP OF BASIN ELEVATION 14.27 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 270 Location Map EFCC Basin #3B - water year peaks 60 Volume (acre-feet) 50 40 30 20 10 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 271 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 272 Percent Spillway Capacity East Fork Cave Creek Basin #3B, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 273 East Fork Cave Creek Basin #3B, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 274 East Fork Cave Creek Basin #3B, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.15 MAX 0.15 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2024 Page 275 East Fork Cave Creek Basin #4, ID #8207 Site Data LOCATION Near Paradise Valley Community College DRAINAGE AREA 0.68 mi2 JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S36 T4N R3E LATITUDE N 33° 38’ 56.5” | +33.64904 LONGITUDE W 112° 00’ 37.5” | -112.01041 ARIZONA STATE PLANE E 671471 | N 963693 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 01/18/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 01/18/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.70 Years | 11,214 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,464.57 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 8.0 feet Gage Height TOP OF BASIN ELEVATION 8.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 276 Location Map (watershed not available) EFCC Basin #4 - water year peaks 14 Volume (acre-feet) 12 10 8 6 4 2 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 277 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 01/23/2024 02/01/2024 02/06/2024 02/08/2024 03/24/2024 04/01/2024 07/14/2024 Peak Gage Height (feet) 1.19 1.70 1.22 0.85 1.15 1.00 2.40 3.11 Peak Volume (ac-ft) 0.5 0.7 0.5 0.3 0.5 0.4 2.1 4.6 Hydrograph of peak 2024 impoundment event, 07/14/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 278 Percent Spillway Capacity 0.7% 1.2% 0.9% 0.5% 0.7% 0.5% 2.8% 6.2% East Fork Cave Creek Basin #4, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 3 4 5 6 7 8 9 10 11 12 13 14 2 15 16 17 18 19 20 21 22 23 1 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 1 0 0 2 0 0 2 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 1 9 1 0 37 0 0 54 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 0 4 0 0 5 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 5 MEAN 0 MAX 54 MIN 0 AC_FT 10 FCDMC Annual Surface Water Report, Water Year 2024 Page 279 East Fork Cave Creek Basin #4, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 1 0 0 2 0 0 5 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 280 East Fork Cave Creek Basin #4, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.6 1.2 1.7 1.2 1.0 2.4 0.3 0.3 3.1 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.30 MAX 3.11 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2024 Page 281 East Fork Cave Creek near 7th Avenue, ID #8507 Site Data LOCATION In Moon Valley Park, near Coral Gable Drive and 7th Avenue DRAINAGE AREA 14.3 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S05 T3N R3E LATITUDE N 33° 37’ 40.6” | +33.62793 LONGITUDE W 112° 04’ 50.7” | -112.08076 ARIZONA STATE PLANE E 650052 | N 956047 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 05/08/1997 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 05/08/1997 – Current LENGTH OF AVAILABLE DATA RECORD 27.40 Years | 10,008 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.46 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,338.000 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,080 cfs | 8.07 feet | 08/13/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 282 Watershed Map East Fork Cave Creek near 7th Avenue - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 283 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 01/23/2024 02/02/2024 02/07/2024 03/24/2024 04/01/2024 07/01/2024 07/15/2024 08/18/2024 Peak Gage Height (feet) 1.96 2.44 2.44 2.39 1.91 1.47 4.01 1.52 1.76 1.17 Peak Discharge (cfs) 112 188 188 179 106 56 557 61 87 6 Hydrograph of peak WY 2024 flow event, 04/01/2024 Flood Flow Frequency Flood Flow Frequency FEMA Flood Flow Frequency 2-year 5-year 10-year 20-year 50-year 100-year --- --- 5,500 --- 8,200 9,400 FCDMC Annual Surface Water Report, Water Year 2024 Page 284 East Fork Cave Creek near 7th Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 85 7 2 28 3 4 5 6 7 12 8 11 9 10 11 12 13 14 15 14 16 17 18 15 1 19 20 21 22 21 23 8 34 24 4 25 26 27 28 29 30 --31 ----3 -----------------------------------------------------------------------------------TOTAL 0 15 29 35 51 7 85 0 0 21 1 0 MEAN 0 0 1 1 2 0 3 0 0 1 0 0 MAX 0 112 188 188 179 56 557 0 0 87 6 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 29 57 69 102 13 168 0 0 41 2 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 243 MEAN 1 MAX 557 MIN 0 AC_FT 481 FCDMC Annual Surface Water Report, Water Year 2024 Page 285 El Mirage Road Drain, ID #14507 Site Data LOCATION Located near El Mirage Road south of Loop 303 DRAINAGE AREA 70.3 mi2 STREAM TYPE Natural Stream JURISDICTION Surprise, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S14 T4N R1W LATITUDE N 33° 41’ 26.6” | +33.69072 LONGITUDE W 112° 19’ 40.9” | -112.32804 ARIZONA STATE PLANE E 574868 | N 979095 USGS QUAD SHEET Calderwood Butte 7.5-Minute STREAMGAGE INSTALLATION DATE 02/16/2006 – WY 2006 PERIOD OF AVAILABLE DATA RECORD 02/16/2006 – Current LENGTH OF AVAILABLE DATA RECORD 18.62 Years | 6,802 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,262.960 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 475 cfs | 3.36 feet GH | 01/21/2010 FCDMC Annual Surface Water Report, Water Year 2024 Page 286 Watershed Map Discharge (cfs) El Mirage Road Drain - water year peaks 500 450 400 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 287 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency FEMA Flood Insurance Study 2-year 5-year 10-year 20-year 50-year 100-year --- --- 2,835 --- 4,747 6,023 FCDMC Annual Surface Water Report, Water Year 2024 Page 288 El Mirage Road Drain, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 289 East Maricopa Floodway at Broadway Road, ID #34307 Site Data LOCATION Located about 1,000 feet south of Broadway Road, east of Higley Road DRAINAGE AREA 11.4 mi2 STREAM TYPE Engineered Channel JURISDICTION Mesa, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S26 T1N R6E LATITUDE N 33° 24’ 19.8” | +33.40551 LONGITUDE W 111° 42’ 37.4” | -111.71040 ARIZONA STATE PLANE E 762961 | N 875135 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 08/10/1989 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 09/03/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.08 Years | 12,447 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -3.84 feet Gage Height STAFF GAGES One CREST STAGE GAGES Two ZERO GAGE HEIGHT ELEVATION 1,335.631 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 4,292 cfs | 5.08 feet GH | 09/07/2012 FCDMC Annual Surface Water Report, Water Year 2024 Page 290 Watershed Map Discharge (cfs) EMF at Broadway Road - water year peaks 5,000 4,500 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 291 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 07/26/2024 09/01/2024 Peak Gage Height (feet) 1.21 0.36 0.22 -1.55 0.25 Hydrograph of peak WY 2024 flow event, 12/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 292 Peak Discharge (cfs) 128 35 31 1 32 EMF at Broadway Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 26 12 3 7 1 4 1 5 6 7 8 6 9 13 10 12 11 4 12 13 14 15 16 17 18 19 20 21 22 1 23 44 18 24 12 10 25 1 1 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 58 29 68 0 0 0 0 0 0 23 MEAN 0 0 2 1 2 0 0 0 0 0 0 1 MAX 0 0 128 35 36 0 0 0 0 1 0 32 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 116 58 135 0 0 0 0 1 0 45 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 178 MEAN 0 MAX 128 MIN 0 AC_FT 354 FCDMC Annual Surface Water Report, Water Year 2024 Page 293 East Maricopa Floodway below Powerline Floodway, ID #33707 Site Data LOCATION Located about 1/3 mile downstream from Powerline Floodway DRAINAGE AREA 257 mi2 STREAM TYPE Concrete Lined Channel JURISDICTION Mesa, Arizona WATERSHED Lower EMF SECTION/TOWNSHIP/RANGE S30 T1S R7E LATITUDE N 33° 19’ 01.7” | +33.31715 LONGITUDE W 111° 41’ 03.3” | -111.68424 ARIZONA STATE PLANE E 843050 | N 771140 USGS QUAD SHEET Higley 7.5-Minute STREAMGAGE INSTALLATION DATE 04/15/2014 – WY 2014 PERIOD OF AVAILABLE DATA RECORD 04/15/2014 – Current LENGTH OF AVAILABLE DATA RECORD 10.46 Years | 3,822 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,316.230 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,372 cfs | 6.27 feet | 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 294 Watershed Map EMF below Powerline Floodway - water year peaks 4,000 3,500 Discharge (cfs) 3,000 2,500 2,000 1,500 1,000 500 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 295 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/02/2024 1.70 314 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 296 EMF below Powerline Floodway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 103 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 103 0 0 0 0 0 0 0 MEAN 0 0 0 0 4 0 0 0 0 0 0 0 MAX 0 0 0 0 314 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 205 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 104 MEAN 0 MAX 314 MIN 0 AC_FT 205 FCDMC Annual Surface Water Report, Water Year 2024 Page 297 East Maricopa Floodway at Queen Creek Road, ID #34807 Site Data LOCATION West of the Higley and Queen Creek Roads intersection DRAINAGE AREA 273.4 mi2 STREAM TYPE Engineered Channel JURISDICTION Gilbert, Arizona WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S15 T2S R6E LATITUDE N 33° 15’ 47.1” | +33.26307 LONGITUDE W 111° 43’ 32.6” | -111.72572 ARIZONA STATE PLANE E 758387 | N 823310 USGS QUAD SHEET Higley 7.5-Minute STREAMGAGE INSTALLATION DATE 01/18/1989 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 01/18/1989 – current LENGTH OF AVAILABLE DATA RECORD 35.70 Years | 13,040 Days GAPS IN RECORD 10/22/2010 – 01/17/2012 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.64 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,302.144 feet NAVD88 POINT OF ZERO FLOW -1.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,167 cfs | 4.41 feet | 09/08/2012 FCDMC Annual Surface Water Report, Water Year 2024 Page 298 Watershed Map EMF at Queen Creek Road - water year peaks 3,500 Discharge (cfs) 3,000 2,500 2,000 1,500 1,000 500 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 299 2010 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 02/09/2024 02/17/2024 03/23/2024 04/01/2024 06/04/2024 07/26/2024 08/18/2024 09/12/2024 Peak Gage Height (feet) 1.43 1.15 3.10 0.81 -0.07 0.81 0.41 0.91 0.46 0.41 0.64 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 300 Peak Discharge (cfs) 404 288 824 44 18 44 31 45 33 31 33 EMF at Queen Creek Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 23 2 401 12 3 60 14 4 13 32 5 14 6 6 2 --7 21 8 15 9 25 10 11 11 24 13 12 7 30 13 26 14 5 --15 1 16 3 4 17 15 18 12 10 19 11 20 20 2 21 22 12 23 86 49 9 24 20 24 25 25 2 10 26 22 27 3 28 --29 30 --------5 ------31 -----------------------------------------------------------------------------TOTAL 0 11 118 75 613 54 35 0 62 24 32 74 MEAN 0 0 4 2 21 2 1 0 2 1 1 2 MAX 0 14 121 70 824 44 31 0 47 36 31 33 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 21 235 148 1216 107 69 0 123 48 64 147 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1099 MEAN 3 MAX 824 MIN 0 AC_FT 2179 FCDMC Annual Surface Water Report, Water Year 2024 Page 301 East Maricopa Floodway at Arizona Avenue, ID #35507 Site Data LOCATION On Arizona Avenue (SR 587) about 2 miles south of Sun Lakes DRAINAGE AREA 668 mi2(including Queen Creek) STREAM TYPE Engineered Channel JURISDICTION Gila River Indian Community WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S16 T3S R5E LATITUDE N 33° 10’ 07.8” | +33.16882 LONGITUDE W 111° 50’ 27.7” | -111.84102 ARIZONA STATE PLANE E 723128 | N 788822 USGS QUAD SHEET Gila Butte 7.5-Minute STREAMGAGE INSTALLATION DATE 02/10/1989 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 02/10/1989 – Current LENGTH OF AVAILABLE DATA RECORD 35.64 Years | 13,017 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.15 feet Gage Height STAFF GAGES One CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,210.50 feet NAVD88 POINT OF ZERO FLOW 0.15 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,536 cfs | 4.07 feet | 01/11/1993 FCDMC Annual Surface Water Report, Water Year 2024 Page 302 Watershed Map EMF at Arizona Avenue - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 303 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 02/03/2024 1.97 703 Hydrograph of peak WY 2024 flow event, 02/03/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 304 EMF at Arizona Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 90 2 249 --520 3 --4 --267 5 ------6 7 8 9 --10 11 12 13 14 15 16 17 --18 19 20 --21 --22 --23 24 25 --26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 1383 0 0 0 0 0 0 0 MEAN 0 0 0 0 48 0 0 0 0 0 0 0 MAX 0 0 0 0 703 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 2743 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1383 MEAN 4 MAX 703 MIN 0 AC_FT 2743 FCDMC Annual Surface Water Report, Water Year 2024 Page 305 Estrella Fan, ID #84207 Site Data LOCATION Located in northwest part of the Estrella Mountains DRAINAGE AREA 1.1 mi2 STREAM TYPE Natural Stream JURISDICTION Goodyear, Arizona WATERSHED Waterman SECTION/TOWNSHIP/RANGE S12 T2S R1W LATITUDE N 33° 16’ 10.1” | +33.26949 LONGITUDE W 112° 19’ 15.3” | -112.32091 ARIZONA STATE PLANE E 576437 | N 825813 USGS QUAD SHEET Avondale SE 7.5-Minute STREAMGAGE INSTALLATION DATE 04/30/1993 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 04/30/1993 – Current LENGTH OF AVAILABLE DATA RECORD 31.42 Years | 11,477 Days GAPS IN RECORD 03/04/2023 – 04/07/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 6 – not related to transducer gage height ZERO GAGE HEIGHT ELEVATION 1,446.87 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 508 cfs | 1.60 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 306 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 307 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff events occurred in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 308 Peak Discharge (cfs) Estrella Fan, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------2 3 ----4 ----5 6 --7 --8 9 --10 --11 ----12 ----13 --14 15 --16 17 18 --19 --20 --21 --22 23 ----24 25 ----26 ----27 --28 --29 --30 ------------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 1 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2024 Page 309 Flying E Wash, ID #51707 Site Data LOCATION About 1 mile west of Vulture Mine Road on US 60 DRAINAGE AREA 8.6 mi2 STREAM TYPE Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S09 T7N R5W LATITUDE N 33° 57’ 44.0” | +33.96223 LONGITUDE W 112° 46’ 58.5” | -112.78291 ARIZONA STATE PLANE E 437353 | N 1078752 USGS QUAD SHEET Vulture Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 07/12/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 07/12/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.22 Years | 11,039 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,283.20 feet NAVD88 POINT OF ZERO FLOW 0.4 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,267 cfs | 7.07 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 310 Watershed Map Flying E Wash - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 311 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Flow Study 5-year 10-year 20-year 50-year 100-year 500-year --- 1,000 --- 4,500 6,500 15,000 Flood Flow Frequency FEMA Flood Insurance Study 2-year 5-year 10-year 20-year 50-year 100-year --- --- --- --- --- 7,820 FCDMC Annual Surface Water Report, Water Year 2024 Page 312 Flying E Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 ----12 13 14 ----15 --16 17 18 19 20 21 22 23 24 --25 --26 --27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 313 Ford Canyon Wash, ID #86207 Site Data LOCATION Located in the north part of White Tanks Regional Park DRAINAGE AREA 4.3 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S18 T3N R2W LATITUDE N 33° 35’ 47.3” | +33.59648 LONGITUDE W 112° 29’ 57.3” | -112.49925 ARIZONA STATE PLANE E 522575 | N 945100 USGS QUAD SHEET Waddell 7.5-Minute STREAMGAGE INSTALLATION DATE 02/05/2002 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 02/05/2002 – Current LENGTH OF AVAILABLE DATA RECORD 22.65 Years | 8,274 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.72 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,468.07 feet NAVD88 POINT OF ZERO FLOW -0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,682 cfs | 4.37 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 314 Watershed Map Ford Canyon Wash - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 315 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 316 Peak Discharge (cfs) Ford Canyon Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 317 Fourth of July Wash, ID #41207 Site Data LOCATION Western Maricopa County about 20 miles west of Arlington DRAINAGE AREA 3.7 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Gila SECTION/TOWNSHIP/RANGE S01 T2S R9W LATITUDE N 33° 16’ 39.5” | +33.27763 LONGITUDE W 113° 07’ 47.1” | -113.12976 ARIZONA STATE PLANE E 329254 | N 830693 USGS QUAD SHEET Cortez Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 03/14/2002 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 03/14/2002 – Current LENGTH OF AVAILABLE DATA RECORD 22.55 Years | 8,237 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,110.00 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,150 cfs | 4.35 feet | 08/30/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 318 Watershed Map Fourth of July Wash - water year peaks 2,500 Discharge (cfs) 2,000 1,500 1,000 500 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 319 2020 2025 WY2024 Events Date of Peak 12/22/2023 07/25/2024 Peak Gage Height (feet) 0.61 0.79 Hydrograph of peak WY 2024 flow event, 07/25/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 320 Peak Discharge (cfs) 173 222 Fourth of July Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 10 23 --24 25 9 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 10 0 0 0 0 0 0 9 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 173 0 0 0 0 0 0 222 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 19 0 0 0 0 0 0 17 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 18 MEAN 0 MAX 222 MIN 0 AC_FT 36 FCDMC Annual Surface Water Report, Water Year 2024 Page 321 Freestone Basin, ID #32807 Site Data LOCATION Near Lindsay Road south of Guadalupe Road DRAINAGE AREA 2.2 mi2 STREAM TYPE Flood control basin JURISDICTION Gilbert, Arizona WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S08 T1S R6E LATITUDE N 33° 21’ 26.4” | +33.35734 LONGITUDE W 111° 46’ 21.9” | -111.77274 ARIZONA STATE PLANE E 743945 | N 857576 USGS QUAD SHEET Chandler 7.5-Minute STREAMGAGE INSTALLATION DATE 12/19/1995 – WY 1996 PERIOD OF AVAILABLE DATA RECORD 12/19/1995 – Current LENGTH OF AVAILABLE DATA RECORD 28.79 Years | 10,514 Days GAPS (> 2 DAYS) IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,219.412 feet NAVD88 POINT OF ZERO FLOW None – Pump Control SPILLWAY CREST ELEVATION None TOP OF BASIN ELEVATION 25.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 322 Location Map Freestone Basin - water year peaks 60.0 Volume (acre-feet) 50.0 40.0 30.0 20.0 10.0 0.0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 323 2015 2020 2025 WY2024 Events Date of Peak 12/25/2023 01/08/2024 01/25/2024 Peak Gage Height (feet) 5.75 3.85 3.35 Peak Volume (ac-ft) 4.5 1.0 0.6 Hydrograph of peak 2024 impoundment event, 12/25/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 324 Percent Spillway Capacity 4.4% 1.5% 0.8% Freestone Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 26 2 27 --28 --29 ----30 ----------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 4 1 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 325 Freestone Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 3 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 4 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 5 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 6 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 7 2.1 2.1 2.1 3.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 8 2.1 2.1 2.1 2.5 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 9 2.1 2.1 2.1 2.2 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 10 2.1 2.1 2.1 2.3 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 11 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 12 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 13 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 14 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 15 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 16 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 17 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 18 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 19 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 20 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 21 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 22 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 23 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 24 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 25 2.1 2.1 2.9 2.5 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 26 2.1 2.1 3.7 2.3 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 27 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 28 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 29 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 30 2.1 2.1 2.1 2.1 --2.1 2.1 2.1 2.1 2.1 2.1 2.1 31 2.1 --2.1 2.1 --2.1 --2.1 --2.1 2.1 -------------------------------------------------------------------------------MEAN 2.1 2.1 2.2 2.2 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 MAX 2.1 2.1 5.8 3.8 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 MIN 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 2.11 MAX 5.75 MIN 2.10 FCDMC Annual Surface Water Report, Water Year 2024 Page 326 Galloway Wash at Galloway Road, ID #20607 Site Data LOCATION Located on Galloway Road about 1/8 mile north of Cave Creek Road DRAINAGE AREA 6.6 mi2 STREAM TYPE Natural JURISDICTION Cave Creek, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S34 T6N R4E LATITUDE N 33° 49’ 54.1” | +33.83170 LONGITUDE W 111° 55’ 43.3” | -111.92870 ARIZONA STATE PLANE E 696370 | N 1030150 USGS QUAD SHEET Cave Creek 7.5-Minute STREAMGAGE INSTALLATION DATE 08/16/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 08/16/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.13 Years | 2,968 Days GAPS (> 2 DAYS) IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,285.00 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,518 cfs | 2.52 feet GH | 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 327 Watershed Map Galloway Wash at Galloway Road - water year peaks 2000 1800 Discharge (cfs) 1600 1400 1200 1000 800 600 400 200 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 328 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 2-year 5-year 10-year 20-year 50-year 100-year --- --- --- --- --- 3,100 FCDMC Annual Surface Water Report, Water Year 2024 Page 329 Galloway Wash at Galloway Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 330 Gila River at Olberg Road, ID #42007 Site Data LOCATION Near Sacaton on the Gila River Indian Community DRAINAGE AREA 18,784 mi2 STREAM TYPE Natural Stream JURISDICTION Gila River Indian Community, Arizona WATERSHED Gila SECTION/TOWNSHIP/RANGE S12 T4S R6E LATITUDE N 33° 05’ 13.4” | +33.08706 LONGITUDE W 111° 41’ 13.2” | -111.68700 ARIZONA STATE PLANE E 770396 | N 759334 USGS QUAD SHEET Sacaton 7.5-Minute STREAMGAGE INSTALLATION DATE 04/12/1995 – WY 1995 PERIOD OF AVAILABLE DATA RECORD 04/12/1995 – Current LENGTH OF AVAILABLE DATA RECORD 29.47 Years | 10,765 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,284.689 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,867 cfs | 6.16 feet | 08/02/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 331 Watershed map Gila River at Olberg Road - water year peaks 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 332 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 333 Peak Discharge (cfs) Gila River at Olberg Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 --5 ----6 --7 8 9 --10 11 12 --13 14 15 16 17 --18 19 --20 --21 22 23 24 --25 --26 ----27 --28 --29 ----30 ----31 -------------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 *USGS maintained a gage at this site prior to October 1, 1998 (09478350) FCDMC Annual Surface Water Report, Water Year 2024 Page 334 Gila River at Maricopa Road, ID #41707 Site Data LOCATION On Maricopa Road (SR 347) about 5 miles north of Maricopa DRAINAGE AREA 20,313 mi2 STREAM TYPE Natural Stream JURISDICTION Gila River Indian Community, Arizona WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S13 T3S R3E LATITUDE N 33° 10’ 14.7” | +33.17076 LONGITUDE W 112° 00’ 21.7” | -112.00601 ARIZONA STATE PLANE E 672658 | N 789695 USGS QUAD SHEET Pima Butte 7.5-Minute STREAMGAGE INSTALLATION DATE 04/09/1995 – WY 1995 PERIOD OF AVAILABLE DATA RECORD 04/09/1995 – Current LENGTH OF AVAILABLE DATA RECORD 29.48 Years | 10,768 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.36 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,115.936 feet NAVD88 POINT OF ZERO FLOW 1.7 feet Gage Height EXTREME FOR PERIOD OF RECORD 8,051 cfs | 3.99 feet | 07/31/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 335 Watershed for Gila River at Maricopa Road FCDMC Annual Surface Water Report, Water Year 2024 Page 336 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 337 Peak Discharge (cfs) Gila River at Maricopa Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 --4 ------5 --6 7 --8 9 --10 --11 12 --13 --14 --15 16 --17 18 --19 --20 --21 22 23 24 25 26 ----27 --28 29 ------30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 NOTE: The USGS maintains a gage at this site in cooperation with ADOT. See USGS Gage #09479350. See USGS Water-Data Report AZ-16-1 for official data for this site. FCDMC Annual Surface Water Report, Water Year 2024 Page 338 Gila River at 116th Avenue, ID #70707 Site Data LOCATION Located on the Avondale Boulevard bridge crossing of the Gila River DRAINAGE AREA 42,726 mi2 STREAM TYPE Natural Stream JURISDICTION Avondale, Arizona WATERSHED Lower ACDC / South Mountain SECTION/TOWNSHIP/RANGE S36 T1N R1W LATITUDE N 33° 22’ 58.2” | +33.38282 LONGITUDE W 112° 18’ 29.2” | -112.30812 ARIZONA STATE PLANE E 580514 | N 867021 USGS QUAD SHEET Tolleson 7.5-Minute STREAMGAGE INSTALLATION DATE 12/16/1998 – WY 1999 PERIOD OF AVAILABLE DATA RECORD 12/16/1998 – Current LENGTH OF AVAILABLE DATA RECORD 25.79 Years | 9,421 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 929.737 feet NAVD88 POINT OF ZERO FLOW -1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 49,394 cfs | 9.15 feet | 02/13/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 339 Watershed Map Gila River at 116th Avenue - water year peaks 60,000 Discharge (cfs) 50,000 40,000 30,000 20,000 10,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 340 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency Source: FEMA Flood Insurance Study 2-year 5-year 10-year 20-year 50-year 100-year 100-year 100-year --- --- 57,000 --- 185,000 227,000 --- 285,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 341 Gila River at 116th Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 342 Gila River at Estrella Parkway, ID #83807 Site Data LOCATION Located at Estrella Parkway crossing of the Gila River DRAINAGE AREA 45,585 mi2 STREAM TYPE Natural Stream JURISDICTION Goodyear, Arizona WATERSHED Waterman SECTION/TOWNSHIP/RANGE S31 T1N R1W LATITUDE N 33° 23’ 20.6” | +33.38908 LONGITUDE W 112° 23’ 32.9” | -112.39248 ARIZONA STATE PLANE E 554770 | N 869418 USGS QUAD SHEET Perryville 7.5-Minute STREAMGAGE INSTALLATION DATE 12/02/1992 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 12/02/1992 – Current LENGTH OF AVAILABLE DATA RECORD 31.83 Years | 11,626 Days GAPS IN RECORD 01/08/1993 – 03/01/1993 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.92 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 885.59 feet NAVD88 POINT OF ZERO FLOW 1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 75,883 cfs | 16.45 feet | 02/16/1995 FCDMC Annual Surface Water Report, Water Year 2024 Page 343 Watershed Map Gila River at Estrella Parkway - water year peaks 80,000 Discharge (cfs) 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 344 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 345 Peak Discharge (cfs) Gila River at Estrella Parkway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 346 Golden Eagle Park Dam, ID #78007 Site Data LOCATION In Golden Eagle Park, near Fountain Hills High School DRAINAGE AREA 4.82 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S09 T3N R6E LATITUDE N 33° 37’ 07.7” | +33.61880 LONGITUDE W 111° 44’ 06.2” | -111.73507 ARIZONA STATE PLANE E 755278 | N 952726 USGS QUAD SHEET Granite Reef Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 12/12/1996 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 12/12/1996 – Current LENGTH OF AVAILABLE DATA RECORD 27.80 Years | 10,155 Days GAPS IN RECORD 05/01/2000 – 03/05/2001 (station was located on inflow wash due to construction) STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 3.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,696.745 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 20.0 feet Gage Height TOP OF DAM ELEVATION 31.7 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 347 Watershed Map Golden Eagle Park Dam - water year peaks 45 Volume (acre-feet) 40 35 30 25 20 15 10 5 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 348 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 349 Percent Spillway Capacity Golden Eagle Park Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 350 Golden Eagle Park Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 351 Golden Eagle Park Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 2 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 4 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 6 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 7 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 8 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 9 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 10 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 11 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 12 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 13 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 14 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 15 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 16 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 17 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 18 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 19 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 20 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 21 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 22 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 23 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 24 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 25 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 26 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 27 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 28 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 29 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 30 3.0 3.0 3.0 3.0 --3.0 3.0 3.0 3.0 3.0 3.0 3.0 31 3.0 --3.0 3.0 --3.0 --3.0 --3.0 3.0 -------------------------------------------------------------------------------MEAN 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.1 MAX 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 MIN 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 3.05 MAX 3.05 MIN 3.05 FCDMC Annual Surface Water Report, Water Year 2024 Page 352 Grand Avenue at 27th Avenue Basin, ID #3807 Site Data LOCATION Located near north and east of Thomas Road and 27th Ave DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S25 T2N R2E LATITUDE N 33° 28’ 54.8” | +33.48189 LONGITUDE W 112° 06’ 58.6” | -112.11627 ARIZONA STATE PLANE E 639140 | N 902920 USGS QUAD SHEET Phoenix 7.5-Minute STREAMGAGE INSTALLATION DATE 10/06/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/06/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.99 Years | 3,283 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.45 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,089.01 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 9.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 353 Watershed Map Grand Avenue and 27th Avenue Basin - water year peaks 20 18 Volume (acre-feet) 16 14 12 10 8 6 4 2 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 354 2025 WY2024 Events Date of Peak 01/23/2024 02/02/2024 03/09/2024 03/16/2024 03/24/2024 04/01/2024 07/01/2024 07/24/2024 08/04/2024 08/06/2024 08/18/2024 Peak Gage Height (feet) 1.44 1.12 1.72 1.12 1.47 2.67 1.40 1.35 1.05 1.30 0.97 Peak Volume (ac-ft) 4.3 3.3 5.3 3.3 5.3 8.5 4.2 4.0 3.1 3.9 2.8 Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 355 Percent Spillway Capacity 11.7% 9.0% 14.4% 9.0% 14.2% 23.0% 11.4% 10.8% 8.2% 10.5% 7.5% Grand Avenue at 27th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 4 1 2 1 3 3 3 4 3 5 2 6 1 7 1 1 8 3 9 3 10 2 11 1 12 13 14 15 1 16 1 17 18 1 19 20 21 22 23 2 24 2 2 25 1 1 1 26 27 28 29 30 ------3 ------31 -----------------------------------------------------------------------------TOTAL 0 0 0 5 1 19 15 0 0 2 2 0 MEAN 0 0 0 0 0 1 1 0 0 0 0 0 MAX 0 0 0 2 2 4 4 0 0 2 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 11 3 37 30 0 0 4 4 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 45 MEAN 0 MAX 4 MIN 0 AC_FT 89 FCDMC Annual Surface Water Report, Water Year 2024 Page 356 Grand Avenue at 27th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 7 2 2 3 6 1 3 1 5 4 5 5 4 1 6 2 7 2 2 8 5 1 9 5 10 4 11 3 12 1 2 13 1 14 15 1 16 3 17 2 1 18 1 2 19 1 20 21 22 23 4 24 3 4 25 3 3 2 26 1 2 1 27 28 29 30 ------6 ------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 1 1 0 0 0 0 0 MAX 0 0 1 4 3 8 9 0 0 4 4 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 9 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 357 Grand Avenue at 27th Avenue Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.5 0.5 0.5 0.5 0.5 0.5 2.4 0.5 0.5 0.9 0.5 0.5 2 0.5 0.5 0.5 0.5 0.9 0.5 2.0 0.5 0.5 0.6 0.5 0.5 3 0.5 0.5 0.5 0.5 0.7 0.5 1.8 0.5 0.5 0.5 0.5 0.5 4 0.5 0.5 0.5 0.5 0.5 0.5 1.6 0.5 0.5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 1.2 0.5 0.5 0.5 0.7 0.5 6 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 7 0.5 0.5 0.5 0.5 0.5 0.9 0.5 0.5 0.5 0.5 0.9 0.5 8 0.5 0.5 0.5 0.5 0.5 1.5 0.5 0.5 0.5 0.5 0.5 0.5 9 0.5 0.5 0.5 0.5 0.5 1.6 0.5 0.5 0.5 0.5 0.5 0.5 10 0.5 0.5 0.5 0.5 0.5 1.4 0.5 0.5 0.5 0.5 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 12 0.5 0.5 0.5 0.5 0.6 0.8 0.5 0.5 0.5 0.5 0.5 0.5 13 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 14 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 15 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.5 16 0.5 0.5 0.5 0.5 0.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 17 0.5 0.5 0.5 0.5 0.5 0.8 0.5 0.5 0.5 0.5 0.6 0.5 18 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.8 0.5 19 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 20 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 21 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 22 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 23 0.5 0.5 0.5 1.2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 24 0.5 0.5 0.5 1.1 0.5 1.4 0.5 0.5 0.5 0.5 0.5 0.5 25 0.5 0.5 0.5 0.9 0.5 1.0 0.5 0.5 0.5 0.9 0.5 0.5 26 0.5 0.5 0.5 0.6 0.5 0.7 0.5 0.5 0.5 0.6 0.5 0.5 27 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 28 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 29 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 30 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 31 0.5 --0.5 0.5 --1.9 --0.5 --0.5 0.5 -------------------------------------------------------------------------------MEAN 0.5 0.5 0.5 0.5 0.5 0.7 0.7 0.5 0.5 0.5 0.5 0.5 MAX 0.5 0.5 0.6 1.4 1.1 2.5 2.7 0.5 0.5 1.4 1.3 0.5 MIN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.51 MAX 2.67 MIN 0.45 FCDMC Annual Surface Water Report, Water Year 2024 Page 358 Granite Reef Diversion, ID #75007 Site Data LOCATION Located along Bush Highway near Granite Reef Dam DRAINAGE AREA 33.1 mi2 STREAM TYPE Engineered Channel JURISDICTION Maricopa County, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S18 T2N R7E LATITUDE N 33° 30’ 43.1” | +33.51197 LONGITUDE W 111° 41’ 01.9” | -111.68386 ARIZONA STATE PLANE E 770954 | N 913868 USGS QUAD SHEET Granite Reef Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 07/21/2005 – WY 2005 PERIOD OF AVAILABLE DATA RECORD 07/21/2005 – Current LENGTH OF AVAILABLE DATA RECORD 19.20 Years | 7,012 Days GAPS IN RECORD 10/01/2023 – 11/01/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.25 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,335.766 feet NAVD88 POINT OF ZERO FLOW -0.4 feet Gage Height EXTREME FOR PERIOD OF RECORD 776 cfs | 1.62 Feet | 08/12/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 359 Watershed Map Granite Reef Diversion - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 360 2020 2025 WY2024 Events Date of Peak 12/26/2023 02/10/2024 02/12/2024 Peak Gage Height 0.33 0.65 0.50 Hydrograph of peak WY 2024 flow event, 02/10/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 361 Peak Discharge (cfs) 67 193 140 Granite Reef Diversion, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 6 7 8 9 10 27 11 13 12 61 13 65 14 6 15 16 17 18 19 20 21 22 23 24 2 25 26 17 27 8 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 24 2 178 0 0 0 0 0 0 0 MEAN 0 0 1 0 6 0 0 0 0 0 0 0 MAX 0 0 67 12 193 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 48 4 352 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 204 MEAN 1 MAX 193 MIN 0 AC_FT 404 FCDMC Annual Surface Water Report, Water Year 2024 Page 362 Granite Reef Wash, ID #57507 Site Data LOCATION On McDowell Road near Granite Reef Road DRAINAGE AREA 4.7 mi2 STREAM TYPE Culvert JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S36 T2N R4E LATITUDE N 33° 27’ 57.6” | +33.46599 LONGITUDE W 111° 53’ 54.9” | -111.89857 ARIZONA STATE PLANE E 705515 | N 897073 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 06/26/2007 – WY 2007 PERIOD OF AVAILABLE DATA RECORD 06/26/2007 – Current LENGTH OF AVAILABLE DATA RECORD 17.27 Years | 6,307 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure transducer STAGE GAGE ELEVATION 1.28 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,202.718 feet NAVD88 POINT OF ZERO FLOW 0.6 feet Gage Height EXTREME FOR PERIOD OF RECORD 235 cfs | 7.76 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 363 Watershed Map Granite Reef Wash - water year peaks 250 Discharge (cfs) 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 364 2020 2025 WY2024 Events Date of Peak 10/17/2023 10/25/2023 12/22/2023 01/23/2024 02/02/2024 02/07/2024 02/08/2024 03/15/2024 03/24/2024 04/01/2024 07/01/2024 08/22/2024 Peak Gage Height 2.19 2.04 3.18 2.81 3.03 2.69 3.06 5.23 3.18 4.38 3.41 5.93 Peak Discharge (cfs) 12 11 22 18 21 17 21 51 22 38 25 63 Hydrograph of peak WY 2024 flow event, 08/22/2024 Flood Flow Frequency FEMA Discharge Frequency 5-year 10-year 20-year 50-year 100-year 500-year --- 580 --- 950 1,240 2,660 FCDMC Annual Surface Water Report, Water Year 2024 Page 365 Granite Reef Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 7 6 2 6 3 4 5 6 1 7 7 1 8 5 1 9 1 10 3 11 12 13 14 15 7 16 1 17 2 18 1 19 20 21 22 8 7 23 5 10 2 24 4 25 2 26 27 28 29 30 --31 ----5 -----------------------------------------------------------------------------------TOTAL 4 1 13 10 24 20 7 0 0 6 8 0 MEAN 0 0 0 0 1 1 0 0 0 0 0 0 MAX 12 6 22 18 21 51 38 0 0 25 63 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 8 1 25 19 48 40 15 0 0 12 16 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 94 MEAN 0 MAX 63 MIN 0 AC_FT 186 FCDMC Annual Surface Water Report, Water Year 2024 Page 366 Greene Wash at SR 84, ID #64007 Site Data LOCATION On SR 84 between Stanfield and Casa Grande DRAINAGE AREA ~1,729 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Pinal County, Arizona WATERSHED Santa Rosa SECTION/TOWNSHIP/RANGE S21 T6S R4E LATITUDE N 32° 52’ 46.1” | +32.87948 LONGITUDE W 111° 56’ 01.3” | -111.93369 ARIZONA STATE PLANE E 694764 | N 683676 USGS QUAD SHEET Stanfield 7.5-Minute STREAMGAGE INSTALLATION DATE 03/23/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 03/23/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.53 Years | 11,150 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,295.416 feet NAVD88 POINT OF ZERO FLOW -3.8 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,391 cfs | 3.67 feet | 08/02/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 367 Watershed Map Greene Wash at SR84 - water year peaks 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 368 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 12/15/2023 0.37 207 Hydrograph of peak WY 2024 flow event, 12/15/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 369 Greene Wash at SR84, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 --7 8 --9 10 --11 12 --13 14 12 ----15 126 16 ----17 18 ----19 20 --21 22 23 24 25 26 --27 28 29 ------30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 138 0 0 0 0 0 0 0 0 0 MEAN 0 0 4 0 0 0 0 0 0 0 0 0 MAX 0 0 207 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 273 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 138 MEAN 0 MAX 207 MIN 0 AC_FT 273 FCDMC Annual Surface Water Report, Water Year 2024 Page 370 Guadalupe Channel, ID #35707 Site Data LOCATION On Guadalupe Road between Power and Sossaman Roads DRAINAGE AREA 18.6 mi2 STREAM TYPE Engineered Channel JURISDICTION Mesa, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S06 T1S R7E LATITUDE N 33° 21’ 54.8” | +33.36523 LONGITUDE W 111° 40’ 34.4” | -111.67621 ARIZONA STATE PLANE E 773413 | N 860497 USGS QUAD SHEET Higley 7.5-Minute STREAMGAGE INSTALLATION DATE 08/07/1998 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 08/07/1998 – Current LENGTH OF AVAILABLE DATA RECORD 26.15 Years | 9,552 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,345.022 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 940 cfs | 2.88 feet | 07/23/2002 FCDMC Annual Surface Water Report, Water Year 2024 Page 371 Watershed Map Discharge (cfs) Guadalupe Channel - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 372 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 02/02/2024 0.71 72 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 373 Guadalupe Road Channel, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 6 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 6 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 72 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 13 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 6 MEAN 0 MAX 72 MIN 0 AC_FT 13 FCDMC Annual Surface Water Report, Water Year 2024 Page 374 Guadalupe FRS, ID #68207 Site Data LOCATION Located west of I-10 and south of Baseline Road DRAINAGE AREA 1.78 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S05 T1S R4E LATITUDE N 33° 22’ 19.0” | +33.37194 LONGITUDE W 111° 58’ 13.7” | -111.97047 ARIZONA STATE PLANE E 683575 | N 862864 USGS QUAD SHEET Guadalupe 7.5-Minute STREAMGAGE INSTALLATION DATE 06/29/1989 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 06/29/1989 – Current LENGTH OF AVAILABLE DATA RECORD 35.26 Years | 12,878 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.26 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,251.38 feet NAVD88 POINT OF ZERO FLOW (CONTROLLED INLET) 0.64 feet Gage Height POINT OF ZERO FLOW (UNCONTROLLED INLET) 9.60 feet Gage Height SPILLWAY ELEVATION 24.62 feet Gage Height TOP OF DAM ELEVATION 32.14 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 375 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 376 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No impoundments recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 377 Peak Volume (ac-ft) Percent Spillway Capacity Guadalupe FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------2 ------3 --------4 ----5 ----6 --7 --8 --9 --10 ----11 --12 --13 --14 --15 --16 --17 --18 --19 --20 --21 --22 ----23 --24 --25 --26 --27 --28 --29 --30 ----------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 *basin under construction starting Jun 1st. Should be finished by the middle of October. No events missed. FCDMC Annual Surface Water Report, Water Year 2024 Page 378 Guadalupe FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------2 ------3 --------4 ----5 ----6 --7 --8 --9 --10 ----11 --12 --13 --14 --15 --16 --17 --18 --19 --20 --21 --22 ----23 --24 --25 --26 --27 --28 --29 --30 ----------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 379 Guadalupe FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --0.0 --- -0.1 -0.1 -0.1 -0.1 -0.1 --0.2 0.2 0.2 2 --0.0 --- -0.1 -0.1 -0.1 -0.1 -0.1 --0.2 0.2 0.2 3 ------- -0.1 -0.1 -0.1 -0.1 -0.1 --0.2 0.2 0.2 4 ----- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 5 ----- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 6 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 7 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 8 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 9 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 10 --0.0 -0.1 -0.1 --- -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 11 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 12 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 13 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 14 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 15 --0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 16 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 17 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 18 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 19 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 20 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.0 0.2 0.2 0.2 21 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 22 --- -0.0 --- -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 23 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 24 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 25 --- -0.1 -0.1 -0.0 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 26 --- -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 27 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 28 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 29 --- -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 30 --- -0.1 -0.1 -0.1 --- -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 31 0.0 --- -0.1 -0.1 --- -0.1 ------0.2 0.2 -------------------------------------------------------------------------------MEAN 0.0 -0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.0 0.2 0.2 0.2 MAX 0.0 0.8 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 0.2 MIN 0.0 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.02 MAX 0.76 MIN -0.05 FCDMC Annual Surface Water Report, Water Year 2024 Page 380 Harquahala FRS, ID #26007 Site Data LOCATION Located northeast of I-10 and Salome Highway interchange DRAINAGE AREA 100.9 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S05 T2N R8W LATITUDE N 33° 32’ 55.3” | +33.54868 LONGITUDE W 113° 05’ 51.8” | -113.09772 ARIZONA STATE PLANE E 340173 | N 929216 USGS QUAD SHEET Burnt Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 03/01/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 03/01/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.59 Years | 11,172 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.38 feet Gage Height STAFF GAGES 7 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,374.89 feet NAVD 1988 POINT OF ZERO FLOW (CONTROLLED) 0.57 feet Gage Height POINT OF ZERO FLOW (UNCONTROLLED) 14.50 feet Gage Height SPILLWAY ELEVATION 35.7 feet Gage Height TOP OF DAM ELEVATION 46.7 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 381 Watershed Map Harquahala FRS - water year peaks 600 Volume (acre-feet) 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 382 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 02/06/2024 04/01/2024 06/26/2024 08/06/2024 Peak Gage Height (feet) 1.70 1.70 1.94 1.94 3.07 Peak Volume (ac-ft) 0.1 0.1 0.1 0.1 0.2 Hydrograph of peak WY 2024 impoundment event, 08/06/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 383 Percent Spillway Capacity 0.0% 0.0% 0.0% 0.0% 0.0% Harquahala FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 3 --4 5 6 7 8 9 10 11 12 13 14 15 16 --17 18 19 20 21 22 23 24 25 26 --27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 384 Harquahala FRS, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 3 --4 5 6 7 8 9 10 11 12 13 14 15 16 --17 18 19 20 21 22 23 24 25 26 --27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 385 Harquahala FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.4 0.4 0.4 --0.4 0.4 0.7 0.4 0.4 1.2 0.4 0.4 2 0.4 0.4 0.4 0.4 1.0 0.4 1.7 0.4 0.4 1.1 0.4 0.4 3 0.4 0.4 0.4 0.4 --0.4 1.6 0.4 0.4 1.0 0.4 0.4 4 0.4 0.4 0.4 0.4 0.7 0.4 1.5 0.4 0.4 0.9 0.4 0.4 5 0.4 0.4 0.4 0.4 0.7 0.4 1.4 0.4 0.4 0.8 0.4 0.4 6 0.4 0.4 0.4 0.4 0.9 0.4 1.3 0.4 0.4 0.7 0.7 0.4 7 0.4 0.4 0.4 0.4 1.6 0.4 1.2 0.4 0.4 0.6 2.7 0.4 8 0.4 0.4 0.4 0.4 0.0 0.4 1.2 0.4 0.4 0.6 2.3 0.4 9 0.4 0.4 0.4 0.4 1.2 0.4 1.1 0.4 0.4 0.4 2.1 0.4 10 0.4 0.4 0.4 0.4 1.1 0.4 1.1 0.4 0.4 0.4 1.9 0.4 11 0.4 0.4 0.4 0.4 1.0 0.4 1.0 0.4 0.4 0.4 1.8 0.4 12 0.4 0.4 0.4 0.4 0.9 0.4 0.9 0.4 0.4 0.4 1.6 0.4 13 0.4 0.4 0.4 0.4 0.9 0.4 0.9 0.4 0.4 0.4 1.5 0.4 14 0.4 0.0 0.4 0.4 0.8 0.4 0.8 0.4 0.4 0.4 1.4 0.4 15 0.4 0.4 0.4 0.4 0.8 0.4 0.8 0.4 0.4 0.4 1.3 0.4 16 0.4 0.4 --0.4 0.7 0.4 0.7 0.4 0.4 0.4 1.2 0.4 17 0.4 0.4 0.4 0.4 0.7 0.4 0.7 0.4 0.4 0.4 1.2 0.4 18 0.4 0.4 0.4 0.4 0.6 0.4 0.7 0.4 0.4 0.4 1.1 0.4 19 0.4 0.4 0.4 0.4 0.5 0.4 0.6 0.4 0.4 0.4 1.0 0.4 20 0.4 0.4 0.4 0.4 0.5 0.4 0.6 0.4 0.4 0.4 0.9 0.4 21 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.7 0.4 22 0.4 0.4 0.7 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.5 0.4 23 0.4 0.4 1.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 24 0.4 0.4 1.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 25 0.4 0.4 1.0 0.4 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 26 0.4 0.4 --0.4 0.4 0.4 0.4 0.4 1.8 0.4 0.4 0.4 27 0.4 0.4 0.7 0.4 0.4 0.4 0.4 0.4 1.6 0.4 0.4 0.4 28 0.4 0.4 0.7 0.4 0.4 0.4 0.4 0.4 1.4 0.4 0.4 0.4 29 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 1.4 0.4 0.4 0.4 30 0.4 0.4 0.5 0.4 --0.4 0.4 0.4 1.2 0.4 0.4 0.4 31 0.4 --0.4 0.4 --0.4 --0.4 --0.4 0.4 -------------------------------------------------------------------------------MEAN 0.4 0.4 0.5 0.4 0.7 0.4 0.8 0.4 0.6 0.5 0.9 0.4 MAX 0.4 0.4 1.7 0.4 1.7 0.4 1.9 0.4 1.9 1.2 3.1 0.4 MIN 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.53 MAX 3.07 MIN 0.38 FCDMC Annual Surface Water Report, Water Year 2024 Page 386 Hartman Wash, ID #51207 Site Data LOCATION About 3 miles west of Vulture Mine Road on US 60 DRAINAGE AREA 5.44 mi2 STREAM TYPE Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S15 T7N R6W LATITUDE N 33° 57’ 46.0” | +33.96277 LONGITUDE W 112° 49’ 40.7” | -112.82798 ARIZONA STATE PLANE E 423672 | N 1079068 USGS QUAD SHEET Vulture Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 07/06/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 07/06/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.24 Years | 11,045 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 3 ZERO GAGE HEIGHT ELEVATION 2,454.403 feet NAVD 1988 POINT OF ZERO FLOW -0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,400 cfs | 7.94 feet | 07/30/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 387 Watershed Map Hartman Wash - water year peaks 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 388 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Flow Frequency 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 3,641 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 389 Hartman Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 390 Hassayampa River at Wagoner, ID #54307 Site Data LOCATION Located on the Wagoner Road bridge crossing of the Hassayampa River DRAINAGE AREA 78 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Upper Hassayampa SECTION/TOWNSHIP/RANGE S09 T11N R3W LATITUDE N 34° 18’ 36.5” | +34.31016 LONGITUDE W 112° 34’ 07.6” | -112.56879 ARIZONA STATE PLANE E 503115 | N 1204868 USGS QUAD SHEET Walnut Grove 7.5-Minute STREAMGAGE INSTALLATION DATE 12/19/1983 – WY 1984 PERIOD OF AVAILABLE DATA RECORD 11/27/1991 – Current LENGTH OF AVAILABLE DATA RECORD 32.85 Years | 11,997 Days GAPS IN RECORD 09/25/2007 – 05/28/2008 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.18 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 3,739.718 feet NAVD88 POINT OF ZERO FLOW -0.7 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,068 cfs | 5.00 feet | 01/08/1993 FCDMC Annual Surface Water Report, Water Year 2024 Page 391 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 392 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 flow event No runoff recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 393 Peak Discharge (cfs) Hassayampa River at Wagoner, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 394 Hassayampa River at Box Canyon, ID #53507 Site Data LOCATION Northeast of Wickenburg DRAINAGE AREA 416 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S07 T8N R4W LATITUDE N 34° 02’ 42.3” | +34.04508 LONGITUDE W 112° 42’ 36.5” | -112.71013 ARIZONA STATE PLANE E 459666 | N 1108690 USGS QUAD SHEET Sam Powell Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 11/17/1983 – WY 1984 PERIOD OF AVAILABLE DATA RECORD 10/16/1991 – Current LENGTH OF AVAILABLE DATA RECORD 32.96 Years | 12,039 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 3.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 3 ZERO GAGE HEIGHT ELEVATION 2,238.01 feet NAVD88 POINT OF ZERO FLOW 2.8 feet Gage Height EXTREME FOR PERIOD OF RECORD 26,000 cfs | 18.90 feet | 01/21/2010 EXTREME OUTSIDE PERIOD OF RECORD 58,000 cfs | 34.6 feet | 09/05/1970 FCDMC Annual Surface Water Report, Water Year 2024 Page 395 Watershed Map Hassayampa River at Box Canyon - water year peaks 70,000 Discharge (cfs) 60,000 50,000 40,000 30,000 20,000 10,000 0 1925 1950 1975 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 396 2000 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 397 Peak Discharge (cfs) Hassayampa River at Box Canyon, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 398 Hassayampa River at US60, ID #45707 Site Data LOCATION US 60 crossing of the Hassayampa River DRAINAGE AREA 709 mi2 STREAM TYPE Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S12 T7N R5W LATITUDE N 33° 58’ 13.2” | +33.97032 LONGITUDE W 112° 43’ 37.3” | -112.72704 ARIZONA STATE PLANE E 454329 | N 1081573 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 03/14/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 03/14/1994 – 10/01/2010 LENGTH OF AVAILABLE DATA RECORD 30.55 Years | 11,159 Days GAPS IN RECORD 06/26/2009 – 04/13/2010 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.60 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,034.970 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 16,089 cfs | 4.32 feet | 02/12/2005 EXTREME OUTSIDE PERIOD OF RECORD 52,000 cfs | 10.3 feet | 09/05/1970 FCDMC Annual Surface Water Report, Water Year 2024 Page 399 Watershed Map Hassayampa River at US60 - water year peaks 25,000 Discharge (cfs) 20,000 15,000 10,000 5,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 400 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 71,000 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 401 Hassayampa River at US60, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 402 Hassayampa River near Morristown, ID #45507 Site Data LOCATION Located about 6 miles south of Wickenburg DRAINAGE AREA 796 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S03 T6N R4W LATITUDE N 33° 53’ 05.3” | +33.88481 LONGITUDE W 112° 39’ 42.3” | -112.66174 ARIZONA STATE PLANE E 473891 | N 1050295 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 05/07/1996 – WY 1996 PERIOD OF AVAILABLE DATA RECORD 05/07/1996 – Current LENGTH OF AVAILABLE DATA RECORD 28.40 Years | 10,374 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 7.25 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,832.621 feet NAVD88 POINT OF ZERO FLOW 6.5 feet Gage Height near 403ight bank EXTREME FOR PERIOD OF RECORD 16,900 cfs | 14.21 feet | 01/22/2010 EXTREME OUTSIDE PERIOD OF RECORD 47,500 cfs | 09/05/1970 FCDMC Annual Surface Water Report, Water Year 2024 Page 403 Watershed Map Hassayampa River near Morristown - water year peaks 18,000 16,000 Discharge (cfs) 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 404 2015 2020 2025 WY2024 Events Date of Peak 02/02/2024 03/31/2024 07/25/2024 Peak Gage Height (feet) 8.13 9.17 7.71 Peak Discharge (cfs) 296 1,237 113 Hydrograph of peak WY 2024 flow event, 03/31/2024 Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 61,600 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 405 Hassayampa River near Morristown, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 98 2 10 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 --18 19 20 21 22 23 24 25 3 26 27 28 29 30 --31 ----23 -----------------------------------------------------------------------------------TOTAL 0 0 0 0 10 23 98 0 0 3 0 0 MEAN 0 0 0 0 0 1 3 0 0 0 0 0 MAX 0 0 0 0 296 1237 717 0 0 113 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 19 46 194 0 0 7 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 134 MEAN 0 MAX 1237 MIN 0 AC_FT 266 FCDMC Annual Surface Water Report, Water Year 2024 Page 406 Hassayampa River at I-10, ID #48007 Site Data LOCATION Located on the eastbound I-10 bridge DRAINAGE AREA 1,324 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S03 T1N R5W LATITUDE N 33° 27’ 28.2” | +33.45782 LONGITUDE W 112° 45’ 40.7” | -112.76139 ARIZONA STATE PLANE E 442398 | N 895153 USGS QUAD SHEET Wintersburg 7.5-Minute STREAMGAGE INSTALLATION DATE 11/09/1994 – WY 1995 PERIOD OF AVAILABLE DATA RECORD 11/09/1994 – Current LENGTH OF AVAILABLE DATA RECORD 29.89 Years | 10,919 Days GAPS IN RECORD 02/15/2011 – 01/30/2012 STAGE GAGE TYPE Transducer STAGE GAGE ELEVATION 1.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,018.722 feet NAVD88 POINT OF ZERO FLOW 0.25 feet Gage Height EXTREME FOR PERIOD OF RECORD 27,000 cfs | 7.05 feet | 10/27/2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 407 Watershed Map Hassayampa River at I-10 - water year peaks 30,000 Discharge (cfs) 25,000 20,000 15,000 10,000 5,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 408 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 75,164 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 409 Hassayampa River at I-10, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 410 Hesperus Dam, ID #79007 Site Data LOCATION East of Golden Eagle Boulevard off of Richwood Avenue DRAINAGE AREA 2.91 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S04 T3N R6E LATITUDE N 33° 38’ 11.8” | +33.63661 LONGITUDE W 111° 44’ 47.6” | -111.74656 ARIZONA STATE PLANE E 751776 | N 959205 USGS QUAD SHEET Fort McDowell Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 12/18/1996 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 12/18/1996 – Current LENGTH OF AVAILABLE DATA RECORD 27.78 Years | 10,149 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.79 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,855.608 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 35.2 feet Gage Height TOP OF DAM ELEVATION 41.1 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 411 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 412 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 413 Percent Spillway Capacity Hesperus Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 414 Hesperus Dam, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 415 Hesperus Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 3 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 10 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 11 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 12 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 13 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 14 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 15 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 16 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 17 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 18 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 19 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 20 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 21 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 22 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 23 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 24 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 25 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 26 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 27 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 28 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 29 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 30 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 31 0.8 --0.8 0.8 --0.8 --0.8 --0.8 0.8 -------------------------------------------------------------------------------MEAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MAX 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MIN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.79 MAX 0.79 MIN 0.79 FCDMC Annual Surface Water Report, Water Year 2024 Page 416 Indian Bend Wash at Sweetwater Avenue, ID #58307 Site Data LOCATION Near 36th Street and Sweetwater Ave DRAINAGE AREA 11.7 mi2 STREAM TYPE Channelized Stream JURISDICTION Phoenix, Arizona WATERSHED Middle Indian Bend SECTION/TOWNSHIP/RANGE S13 T3N R3E LATITUDE N 33° 36’ 13.3” | +33.60369 LONGITUDE W 112° 00’ 16.0” | -112.00445 ARIZONA STATE PLANE E 673266 | N 947189 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 12/27/1990 – WY 1991 PERIOD OF AVAILABLE DATA RECORD 03/27/1992 – Current LENGTH OF AVAILABLE DATA RECORD 32.51 Years | 11,876 Days GAPS IN RECORD 04/27/1997 – 11/22/1998 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,387.633 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,093 cfs | 4.90 feet | 08/02/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 417 Watershed Map Indian Bend Wash at Sweetwater Avenue - water year peaks 2,500 Discharge (cfs) 2,000 1,500 1,000 500 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 418 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 01/23/2024 02/02/2024 02/08/2024 04/01/2024 07/01/2024 07/14/2024 08/18/2024 Peak Gage Height (feet) 0.58 0.88 1.61 0.73 0.58 1.62 0.59 1.28 0.84 Peak Discharge (cfs) 70 110 232 89 70 233 71 175 104 Hydrograph of peak WY 2024 flow event, 04/01/2024 Flood Flow Frequency FEMA FIS, Flood Flow Frequency 2-year 5-year 10-year 20-year 50-year 100-year 200-year 500-year --- --- 2,000 --- 3,500 6,000 --- 15,500 FCDMC Annual Surface Water Report, Water Year 2024 Page 419 Indian Bend Wash at Sweetwater Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 44 11 2 18 3 4 5 6 7 17 8 11 9 10 11 12 13 14 6 15 13 16 17 18 9 2 18 19 20 21 22 11 23 3 32 24 25 26 27 28 29 30 ------3 ------31 -----------------------------------------------------------------------------TOTAL 0 9 14 32 50 3 44 0 0 30 18 0 MEAN 0 0 0 1 2 0 1 0 0 1 1 0 MAX 0 70 110 232 89 10 233 0 0 175 104 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 18 28 63 99 5 88 0 0 60 36 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 200 MEAN 1 MAX 233 MIN 0 AC_FT 397 FCDMC Annual Surface Water Report, Water Year 2024 Page 420 Indian Bend Wash at Shea Boulevard, ID #59507 Site Data LOCATION Near 52nd Street and Shea Boulevard DRAINAGE AREA 25.8 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S29 T3N R4E LATITUDE N 33° 34’ 53.2” | +33.58143 LONGITUDE W 111° 58’ 06.3” | -111.96841 ARIZONA STATE PLANE E 684236 | N 939083 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 06/09/1998 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 06/09/1998 – Current LENGTH OF AVAILABLE DATA RECORD 26.31 Years | 9,611 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,344.26 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,616 cfs | 4.68 feet | 08/02/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 421 Watershed Map Indian Bend Wash at Shea Boulevard - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 422 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/23/2023 01/23/2024 02/02/2024 02/07/2024 02/08/2024 03/24/2024 04/01/2024 07/01/2024 07/14/2024 08/07/2024 08/13/2024 08/18/2024 Peak Gage Height (feet) 1.21 1.39 1.74 1.64 1.49 1.39 1.19 2.31 1.35 1.77 1.39 1.19 1.56 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 423 Peak Discharge (cfs) 132 230 480 404 291 230 120 1,055 209 509 230 120 345 Indian Bend Wash at Shea Boulevard, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 14 389 48 2 150 1 3 4 5 6 --8 --47 7 142 8 77 9 5 10 11 12 13 8 14 23 15 2 68 16 17 18 33 113 19 1 20 21 22 40 23 52 121 24 2 21 25 26 27 --28 29 30 ------30 ------31 -----------------------------------------------------------------------------TOTAL 0 34 92 123 389 53 389 0 0 140 176 0 MEAN 0 1 3 4 13 2 13 0 0 5 6 0 MAX 0 132 230 480 404 591 1055 0 0 509 345 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 67 183 244 772 104 771 0 0 278 349 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1395 MEAN 4 MAX 1055 MIN 0 AC_FT 2768 FCDMC Annual Surface Water Report, Water Year 2024 Page 424 Indian Bend Wash near Indian Bend Road, ID #56307 Site Data LOCATION About ¼ mile south of Indian Bend Road DRAINAGE AREA 88 mi2 via USGS Streamstats STREAM TYPE Channelized Natural Stream JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S11 T2N R4E LATITUDE N 33° 32’ 04.0” | +33.53444 LONGITUDE W 111° 54’ 51.1” | -111.91422 ARIZONA STATE PLANE E 700748 | N 921983 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 09/28/1983 – WY 1983 PERIOD OF AVAILABLE DATA RECORD 03/27/1992 – Current LENGTH OF AVAILABLE DATA RECORD 32.51 Years | 11,876 Days GAPS IN RECORD 09/28/1983 – 03/27/1992 | 07/07/1999 – 01/25/2000 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.15 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,267.550 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 9,324 cfs | 5.85 feet | 07/24/1992 EXTREME OUTSIDE PERIOD OF RECORD 21,000 cfs | 06/22/1972 FCDMC Annual Surface Water Report, Water Year 2024 Page 425 Watershed Map Discharge (cfs) Indian Bend Wash near Indian Bend Road - water year peaks 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 426 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/09/2024 03/24/2024 04/01/2024 07/26/2024 08/02/2024 08/06/2024 08/22/2024 Peak Gage Height (feet) 0.30 1.05 1.13 0.53 1.70 0.38 0.35 0.63 1.25 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 427 Peak Discharge (cfs) 4 14 15 6 38 4 4 5 18 Indian Bend Wash near Indian Bend Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 14 1 2 9 1 3 7 4 6 5 6 6 6 7 6 3 8 3 6 9 11 10 6 11 12 13 14 15 16 17 18 19 20 21 22 3 23 1 5 8 24 10 3 2 25 7 26 8 1 27 6 28 1 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 1 37 20 3 61 0 0 2 20 0 MEAN 0 0 0 1 1 0 2 0 0 0 1 0 MAX 0 0 4 14 15 6 38 0 0 4 18 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 1 74 39 6 122 0 0 4 39 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 144 MEAN 0 MAX 38 MIN 0 AC_FT 285 FCDMC Annual Surface Water Report, Water Year 2024 Page 428 Indian Bend Wash at McDonald Drive, ID #57207 Site Data LOCATION On McDonald Drive west of Hayden Road DRAINAGE AREA 91.1 mi2 STREAM TYPE Engineered Natural Stream JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S11 T2N R4E LATITUDE N 33° 31’ 26.7” | +33.52407 LONGITUDE W 111° 54’ 35.8” | -111.90994 ARIZONA STATE PLANE E 702047 | N 918207 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 11/24/1997 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 11/24/1997 – Current LENGTH OF AVAILABLE DATA RECORD 26.85 Years | 9,808 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -1.90 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,262.365 feet NAVD88 POINT OF ZERO FLOW -1.9 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,718 cfs | 3.83 feet | 08/24/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 429 Watershed Map Indian Bend Wash at McDonald Drive - water year peaks 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 430 2015 2020 2025 WY2024 Events Date of Peak 01/24/2024 04/01/2024 08/10/2024 08/23/2024 Peak Gage Height (feet) -0.55 -0.15 -0.19 0.26 Hydrograph of peak WY 2024 flow event, 08/23/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 431 Peak Discharge (cfs) 23 99 91 255 Indian Bend Wash at McDonald Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 56 2 37 3 14 4 13 5 15 6 15 7 2 3 8 2 9 10 2 11 12 13 14 15 16 17 18 19 20 21 ----21 22 --102 23 5 --40 24 14 25 10 13 26 13 7 27 13 5 28 3 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 4 0 58 0 0 153 0 0 0 190 0 MEAN 0 0 0 2 0 0 5 0 0 0 6 0 MAX 0 5 0 23 0 2 99 0 0 0 255 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 7 0 115 0 0 304 0 0 0 376 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 404 MEAN 1 MAX 255 MIN 0 AC_FT 802 FCDMC Annual Surface Water Report, Water Year 2024 Page 432 Indian Bend Wash at Indian School Road, ID #56507 Site Data LOCATION On Indian School Road west of Hayden Road DRAINAGE AREA 90 mi2 STREAM TYPE Improved Natural Stream JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S23 T2N R4E LATITUDE N 33° 29’ 42.2” | +33.49505 LONGITUDE W 111° 54’ 40.5” | -111.91126 ARIZONA STATE PLANE E 701656 | N 907657 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 11/25/1997 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 11/25/1997 – Current LENGTH OF AVAILABLE DATA RECORD 26.85 Years | 9,807 Days GAPS IN RECORD 11/30/2009 – 02/16/2010 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.72 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,235.282 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,929 cfs | 5.76 feet | 07/23/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 433 Watershed Map Indian Bend Wash at Indian School Road - water year peaks 4,500 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1995 2000 2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 434 2010 2015 2020 2025 WY2024 Events Date of Peak 04/01/2024 04/07/2024 08/22/2024 Peak Gage Height (feet) 1.25 1.10 1.42 Hydrograph of peak WY 2024 flow event, 08/22/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 435 Peak Discharge (cfs) 165 116 230 Indian Bend Wash at Indian School Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 58 2 50 3 4 5 6 14 7 22 8 9 12 10 11 12 13 14 15 16 5 18 17 18 19 20 21 22 32 23 31 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 18 163 0 0 0 63 0 MEAN 0 0 0 0 0 1 5 0 0 0 2 0 MAX 0 0 0 0 0 55 165 0 0 0 230 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 35 323 0 0 0 125 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 243 MEAN 1 MAX 230 MIN 0 AC_FT 482 FCDMC Annual Surface Water Report, Water Year 2024 Page 436 Indian Bend Wash near McKellips Road, ID #55707 Site Data LOCATION About 1/3 mile south of McKellips Road DRAINAGE AREA 101 mi2 STREAM TYPE Channelized Natural Ephemeral Stream JURISDICTION Tempe, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S11 T1N R4E LATITUDE N 33° 26’ 57.2” | +33.44923 LONGITUDE W 111° 54’ 53.3” | -111.91482 ARIZONA STATE PLANE E 700564 | N 890974 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 05/21/1985 – WY 1985 PERIOD OF AVAILABLE DATA RECORD 11/10/1987 – Current LENGTH OF AVAILABLE DATA RECORD 36.89 Years | 13,475 Days GAPS IN RECORD 12/04/2023 – 12/28/2023 STAGE GAGE TYPE Gas Purge Bubbler STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,173.843 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,841 cfs | 6.90 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 437 Watershed Map Indian Bend Wash near McKellips Road - water year peaks 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 438 2010 2015 2020 2025 WY2024 Events Date of Peak 12/22/2024 08/22/2024 Peak Gage Height (feet) 0.52 2.41 Hydrograph of peak WY 2024 flow event, 08/22/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 439 Peak Discharge (cfs) 34 711 Indian Bend Wash near McKellips Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 2 6 7 8 9 --10 11 12 13 14 15 16 17 18 19 20 21 22 11 77 23 9 140 24 1 24 25 1 2 26 1 27 1 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 22 0 0 0 0 0 0 0 247 0 MEAN 0 0 1 0 0 0 0 0 0 0 8 0 MAX 0 0 34 0 0 0 0 0 0 0 711 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 44 0 0 0 0 0 0 0 490 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 269 MEAN 1 MAX 711 MIN 0 AC_FT 534 FCDMC Annual Surface Water Report, Water Year 2024 Page 440 Indian Bend Wash Interceptor Channel, ID #56807 Site Data LOCATION Between Pima and Hayden Roads north of the Arizona Canal DRAINAGE AREA 35 mi2 STREAM TYPE Engineered Channel JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S12 T2N R4E LATITUDE N 33° 31’ 59.4” | +33.53317 LONGITUDE W 111° 53’ 52.4” | -111.89789 ARIZONA STATE PLANE E 705723 | N 921521 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 04/21/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 04/21/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.45 Years | 11,121 Days GAPS IN RECORD 06/16/1999 – 01/11/2000 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,271.457 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,590 cfs | 5.46 feet | 08/12/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 441 Watershed Map Indian Bend Wash Interceptor Channel - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 442 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/22/2024 0.90 19 Hydrograph of peak WY 2024 flow event, 08/22/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 443 Indian Bend Wash Interceptor Channel, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 3 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 3 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 19 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 6 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 19 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2024 Page 444 Jackrabbit Wash, ID #45007 Site Data LOCATION Located near the intersection of Vulture Mine and Wickenburg Roads DRAINAGE AREA 136.4 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S04 T4N R6W LATITUDE N 33° 42’ 55.6” | +33.71543 LONGITUDE W 112° 52’ 54.4” | -112.88179 ARIZONA STATE PLANE E 406523 | N 989210 USGS QUAD SHEET Belmont Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 10/31/2000 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 10/31/2000 – Current LENGTH OF AVAILABLE DATA RECORD 23.92 Years | 8,736 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.06 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,700.284 feet NAVD 1988 POINT OF ZERO FLOW 1.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 6,933 cfs | 5.94 feet | 09/09/2014 EXTREME OUTSIDE PERIOD OF RECORD 32,400 cfs | 9.90 feet | 10/27/2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 445 Watershed Map Jackrabbit Wash - water year peaks 35,000 Discharge (cfs) 30,000 25,000 20,000 15,000 10,000 5,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 446 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 21,100 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 447 Jackrabbit Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 448 Lake Margherite, ID #59007 Site Data LOCATION On Hayden Road about ¼ mile south of Via Linda DRAINAGE AREA 4.9 mi2 STREAM TYPE Engineered Channel JURISDICTION Scottsdale, Arizona WATERSHED Lower Indian Bend SECTION/TOWNSHIP/RANGE S36 T3N R4E LATITUDE N 33° 33’ 49.2” | +33.56367 LONGITUDE W 111° 53’ 59.0” | -111.89972 ARIZONA STATE PLANE E 705158 | N 932620 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 11/24/1997 – WY 1998 PERIOD OF AVAILABLE DATA RECORD 11/24/1997 – Current LENGTH OF AVAILABLE DATA RECORD 26.85 Years | 9,808 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,320.796 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 500 cfs | 3.01 feet | 10/02/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 449 Watershed Map Lake Margherite - water year peaks 600 Discharge (cfs) 500 400 300 200 100 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 450 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 451 Peak Discharge (cfs) Lake Margherite, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 452 Laveen Basin, ID #67807 Site Data LOCATION Located near 43rd Avenue and Southern Avenue DRAINAGE AREA Not Determined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S34 T1N R2E LATITUDE N 33° 23’ 25.2” | +33.39033 LONGITUDE W 112° 09’ 02.6” | -112.15072 ARIZONA STATE PLANE E 628557 | N 869621 USGS QUAD SHEET Fowler 7.5-Minute STREAMGAGE INSTALLATION DATE 11/07/2006 – WY 2007 PERIOD OF AVAILABLE DATA RECORD 11/07/2006 – Current LENGTH OF AVAILABLE DATA RECORD 17.90 Years | 6,538 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,003.12 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 19.0 feet Gage Height TOP OF BASIN ELEVATION 20.4 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 453 Watershed Map Laveen Basin - water year peaks 140 Volume (acre-feet) 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 454 2020 2025 WY2024 Events Date of Peak 11/22/2023 11/28/2023 12/01/2023 12/22/2023 01/23/2024 02/02/2024 03/09/2024 03/24/2024 04/01/2024 Peak Gage Height (feet) 3.24 2.19 2.33 2.08 1.36 1.91 2.63 1.31 4.88 Peak Volume (ac-ft) 5.2 1.8 2.2 1.4 0.3 4.3 3.2 0.3 10.7 Hydrograph of peak 2024 impoundment event, 04/01/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 455 Percent Spillway Capacity 4.1% 1.4% 1.8% 1.1% 0.3% 4.0% 3.0% 0.2% 9.9% Laveen Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6 11 2 2 4 10 3 7 4 2 5 6 7 5 4 1 8 6 8 3 9 6 8 1 10 7 7 11 2 4 12 1 13 14 15 16 17 18 19 20 21 22 5 1 23 8 3 24 7 25 7 26 1 27 28 4 29 2 30 ------1 ------31 -----------------------------------------------------------------------------TOTAL 0 35 14 0 30 33 36 0 0 0 0 0 MEAN 0 1 0 0 1 1 1 0 0 0 0 0 MAX 0 10 8 0 10 9 12 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 69 28 0 59 66 71 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 148 MEAN 0 MAX 12 MIN 0 AC_FT 293 FCDMC Annual Surface Water Report, Water Year 2024 Page 456 Laveen Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 8 2 1 5 3 2 4 5 6 7 1 1 8 2 3 9 2 3 10 1 1 11 1 12 13 14 15 16 17 18 19 20 21 22 1 23 3 1 24 2 25 2 26 27 28 1 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 1 0 0 0 0 0 MAX 0 5 2 0 4 3 11 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 11 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 457 Laveen Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 2.0 0.4 0.3 0.2 4.0 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 1.6 0.4 1.8 0.2 3.3 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 1.4 0.3 1.3 0.2 2.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 1.1 0.3 0.8 0.2 1.5 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 1.0 0.2 0.6 0.2 1.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.8 0.2 0.6 0.2 1.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.9 0.2 1.8 1.3 1.6 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.8 0.2 2.1 2.5 1.7 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.7 0.2 2.1 2.4 1.4 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.6 0.2 2.0 2.1 1.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.5 0.2 1.6 1.8 0.9 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.5 0.2 1.1 1.5 0.8 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.5 0.2 0.8 1.2 0.8 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.4 0.2 0.6 1.1 0.8 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.3 0.2 0.6 1.1 0.7 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.3 0.2 0.5 1.2 0.7 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.3 0.2 0.5 0.9 0.8 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.4 0.7 0.7 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.5 0.5 0.2 0.2 0.2 0.2 0.2 20 0.2 0.3 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.2 0.2 0.2 21 0.2 0.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 1.9 1.1 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 2.5 1.7 1.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 2.2 1.1 1.1 0.2 1.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 2.3 1.0 0.8 0.2 1.1 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.8 1.0 0.7 0.2 1.0 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 1.2 1.0 0.6 0.2 0.8 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 1.8 1.0 0.6 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 1.0 0.8 0.4 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.7 0.7 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.5 0.2 --1.1 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.6 0.8 0.3 0.7 0.9 0.9 0.2 0.2 0.2 0.2 0.2 MAX 0.2 3.2 2.3 1.4 3.0 2.6 4.9 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.46 MAX 4.88 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 458 Magma FRS, ID #42307 Site Data LOCATION Located east of Hunt Highway along Arizona Farms Road DRAINAGE AREA 74.3 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Florence, Arizona WATERSHED Gila / Queen Creek SECTION/TOWNSHIP/RANGE S35 T3S R9E LATITUDE N 33° 07’ 11.2” | +33.11978 LONGITUDE W 111° 24’ 08.9” | -111.40248 ARIZONA STATE PLANE E 857422 | N 771497 USGS QUAD SHEET Florence 7.5-Minute STREAMGAGE INSTALLATION DATE 11/15/2007 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 11/15/2007 – Current Day LENGTH OF AVAILABLE DATA RECORD 16.88 Years | 6,165 Days GAPS IN RECORD 04/12/2012 – 11/03/2013 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,601.40 feet NAVD88 POINT OF ZERO FLOW 1,601.40 feet NAVD88 SPILLWAY ELEVATION 1,624.60 feet NAVD88 TOP OF DAM ELEVATION 1,633.00 feet NAVD88 NORMAL DRAWDOWN RATE -0.25 feet per hour FCDMC Annual Surface Water Report, Water Year 2024 Page 459 Watershed Map Magma FRS - water year peaks 3,500 Volume (acre-feet) 3,000 2,500 2,000 1,500 1,000 500 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 460 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment even No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 461 Peak Volume (ac-ft) Percent Spillway Capacity Magma FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 462 Magma FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 463 Magma FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.15 MAX 0.15 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2024 Page 464 Martinez Creek, ID #49507 Site Data LOCATION About a mile northwest of the Scenic Loop Road and US 93 intersection DRAINAGE AREA 109 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S20 T8N R5W LATITUDE N 34° 01’ 41.8” | +34.02828 LONGITUDE W 112° 47’ 32.1” | -112.79224 ARIZONA STATE PLANE E 435098 | N 1103100 USGS QUAD SHEET Flores 7.5-Minute STREAMGAGE INSTALLATION DATE 11/23/1994 – WY 1995 PERIOD OF AVAILABLE DATA RECORD 11/23/1994 – Current LENGTH OF AVAILABLE DATA RECORD 29.86 Years | 10,905 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,305.963 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 10,562 cfs | 11.42 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 465 Watershed Map Martinez Creek - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 466 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- 9,220 --- 27,400 32,000 45,500 FCDMC Annual Surface Water Report, Water Year 2024 Page 467 Martinez Creek, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 468 McDowell Mountain Road, ID #76007 Site Data LOCATION Located in the southeast part of McDowell Mountain Park DRAINAGE AREA 11.9 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S26 T4N R6E LATITUDE N 33° 39’ 24.1” | +33.65667 LONGITUDE W 111° 42’ 22.8” | -111.70634 ARIZONA STATE PLANE E 763993 | N 966522 USGS QUAD SHEET McDowell Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 05/18/2004 – WY 2004 PERIOD OF AVAILABLE DATA RECORD 05/18/2004 – Current LENGTH OF AVAILABLE DATA RECORD 20.37 Years | 7,441 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,630.120 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 652 cfs | 1.77 feet | 07/23/2007 FCDMC Annual Surface Water Report, Water Year 2024 Page 469 Watershed Map McDowell Mountain Road - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 470 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 471 Peak Discharge (cfs) McDowell Mountain Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 472 McMicken Dam at Bell Road, ID #71507 Site Data LOCATION Located on the south side of McMicken Dam at Bell Road DRAINAGE AREA 242.2 mi2 at outlet gage STREAM TYPE Dam Pool Pass-through JURISDICTION Surprise, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S03 T3N R2W LATITUDE N 33° 38’ 17.6” | +33.63823 LONGITUDE W 112° 27’ 41.1” | -112.46141 ARIZONA STATE PLANE E 534216 | N 960172 USGS QUAD SHEET McMicken Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 03/04/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 03/04/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.58 Years | 5,690 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,335.681 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 473 Watershed Map McMicken Dam at Bell Road - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 474 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 475 Peak Discharge (cfs) McMicken Dam at Bell Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 476 McMicken Dam, ID #71707 Site Data LOCATION Gage is located about 3 miles north of Bell Road DRAINAGE AREA 242.2 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Surprise, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S24 T4N R2W LATITUDE N 33° 40’ 37.2” | +33.67699 LONGITUDE W 112° 25’ 24.3” | -112.42342 ARIZONA STATE PLANE E 545820 | N 974232 USGS QUAD SHEET McMicken Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 03/20/1983 – WY 1983 PERIOD OF AVAILABLE DATA RECORD 02/18/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.62 Years | 13,375 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.60 feet Gage Height STAFF GAGES 5 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,336.00 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EMERGENCY SPILLWAY CREST ELEVATION 19.25 feet Gage Height TOP OF DAM ELEVATION 25.8 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 477 Watershed Map McMicken Dam - water year peaks 3,000 Volume (acre-feet) 2,500 2,000 1,500 1,000 500 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 478 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak 2024 impoundment event There were no impoundments recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 479 Percent Spillway Capacity McMicken Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 480 McMicken Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 202 3 94 4 5 222 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 10 0 7 0 0 0 MAX 0 0 0 0 0 0 428 0 889 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1 MAX 889 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 481 McMicken Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 2 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 3 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 4 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 5 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 7 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 8 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 9 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 10 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 11 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 12 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 13 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 14 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 15 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 16 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 17 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 18 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 19 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 20 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 21 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 22 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 23 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 24 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 25 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 26 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 27 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 28 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 29 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 30 1.6 1.6 1.6 1.6 --1.6 1.6 1.6 1.6 1.6 1.6 1.6 31 1.6 --1.6 1.6 --1.6 --1.6 --1.6 1.6 -------------------------------------------------------------------------------MEAN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 MAX 1.6 1.6 1.6 1.6 1.6 1.6 1.7 1.6 1.6 1.6 1.6 1.6 MIN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.60 MAX 1.66 MIN 1.60 FCDMC Annual Surface Water Report, Water Year 2024 Page 482 McMicken Floodway, ID #71307 Site Data LOCATION Near the intersection of 163rd and Grand Avenues DRAINAGE AREA 243.2 mi2 STREAM TYPE Engineered Channel JURISDICTION Surprise, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S18 T4N R1W LATITUDE N 33° 41’ 07.2” | +33.68532 LONGITUDE W 112° 24’ 31.1” | -112.40864 ARIZONA STATE PLANE E 550347 | N 977232 USGS QUAD SHEET McMicken Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 05/19/1992 – WY 1992 PERIOD OF AVAILABLE DATA RECORD 05/19/1992 – Current LENGTH OF AVAILABLE DATA RECORD 33.37 Years | 11,823 Days GAPS IN RECORD 02/15/2024-04/18/2024 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 6 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,325.070 feet NAVD88 POINT OF ZERO FLOW 0.15 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,110 cfs | 4.98 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 483 Watershed Map McMicken Floodway - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 484 2015 2020 2025 WY2024 Events Date of Peak 12/17/2023 02/04/2024 02/12/2024 Peak Gage Height 1.30 1.52 1.64 Hydrograph of peak WY 2024 flow event, 02/04/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 485 Peak Discharge (cfs) 36 60 76 McMicken Floodway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ----2 ----3 ----4 7 --------5 ----6 ----7 ----8 9 ----10 ----11 ----12 12 ----13 16 --------14 ------15 ------16 17 4 ------18 ----19 ----20 ----21 --------22 ----23 ----24 25 ----26 ----27 ----28 ----29 --------30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 4 0 34 --0 0 0 0 0 0 MEAN 0 0 0 0 1 --0 0 0 0 0 0 MAX 0 0 36 0 76 --0 0 0 0 0 0 MIN 0 0 0 0 0 --0 0 0 0 0 0 AC_FT 0 0 7 0 68 --0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 38 MEAN 0 MAX 76 MIN 0 AC_FT 75 FCDMC Annual Surface Water Report, Water Year 2024 Page 486 Mineral Canyon Basin, ID #68807 Site Data LOCATION In South Mountain Park near Central Avenue and Mineral Road DRAINAGE AREA 3.46 mi2 STREAM TYPE Flood control basin on natural stream JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S08 T1S R3E LATITUDE N 33° 21’ 20.9” | +33.35580 LONGITUDE W 112° 04’ 13.8” | -112.07051 ARIZONA STATE PLANE E 653025 | N 857020 USGS QUAD SHEET Lone Butte 7.5-Minute STREAMGAGE INSTALLATION DATE 09/10/2015 – WY 2015 PERIOD OF AVAILABLE DATA RECORD 09/10/2015 – Current LENGTH OF AVAILABLE DATA RECORD 9.06 Years | 3,309 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,294.00 feet NAVD88 POINT OF ZERO FLOW 7.82 feet Gage Height SPILLWAY CREST ELEVATION No identified spillway TOP OF BASIN ELEVATION 28.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 487 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 488 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 489 Percent Spillway Capacity Mineral Canyon Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 490 Mineral Canyon Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 491 Mineral Canyon Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 4 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 6 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 7 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 8 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 9 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 10 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 11 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 12 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 13 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 14 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 15 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 16 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 17 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 18 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 19 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 20 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 21 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 22 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 23 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 24 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 25 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 26 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 27 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 28 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 29 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 30 2.0 2.0 2.0 2.0 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 31 2.0 --2.0 2.0 --2.0 --2.0 --2.0 2.0 -------------------------------------------------------------------------------MEAN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 MAX 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 MIN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 2.00 MAX 2.00 MIN 2.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 492 New River Fire, ID #62707 Site Data LOCATION North of Table Mesa Road about 4 miles east of I-17 DRAINAGE AREA 64.3 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Upper New River SECTION/TOWNSHIP/RANGE S04 T7N R3E LATITUDE N 33° 58’ 33.1” | +33.97585 LONGITUDE W 112° 03’ 38.3” | -112.06063 ARIZONA STATE PLANE E 656360 | N 1082640 USGS QUAD SHEET Daisy Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 07/18/2005 – WY 2005 PERIOD OF AVAILABLE DATA RECORD 07/20/2005 – Current LENGTH OF AVAILABLE DATA RECORD 19.20 Years | 7,013 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,469.094 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height (estimated) EXTREME FOR PERIOD OF RECORD 32,584 cfs | 11.0 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 493 Watershed Map New River Fire - water year peaks 35,000 Discharge (cfs) 30,000 25,000 20,000 15,000 10,000 5,000 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 494 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency FEMA Flood Insurance Study (at USGS gage, 3 miles downstream) 100-year 34,500 FCDMC Annual Surface Water Report, Water Year 2024 Page 495 Peak Discharge (cfs) New River Fire, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 6 --7 --8 --9 --10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 496 New River @ Loop 303, ID #62213 Site Data LOCATION On the westbound Loop 303 bridge DRAINAGE AREA 122.2 mi2 STREAM TYPE Natural Stream JURISDICTION Peoria, Arizona WATERSHED Upper New River SECTION/TOWNSHIP/RANGE S14 T5N R1E LATITUDE N 33° 38’ 16.6” | +33.63795 LONGITUDE W 112° 14’ 22.5” | -112.23959 ARIZONA STATE PLANE E 606540 | N 1011220 USGS QUAD SHEET Biscuit Flat 7.5-Minute STREAMGAGE INSTALLATION DATE 12/12/2019 – WY 2020 PERIOD OF AVAILABLE DATA RECORD 12/12/2019 – Current LENGTH OF AVAILABLE DATA RECORD 4.80 Years | 1,755 Days GAPS IN RECORD None STAGE GAGE TYPE RADAR STAGE GAGE ELEVATION 23.76 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,490.000 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,483 cfs | 5.46 feet | 07/23/2022 EXTREME OUTSIDE PERIOD OF RECORD 46,000 cfs | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 497 Watershed Map New River at SR303L - water year peaks 8,000 7,000 Discharge (cfs) 6,000 5,000 4,000 3,000 2,000 1,000 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 498 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 499 Peak Discharge (cfs) New River at SR303L, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 500 New River Dam Pool, ID #62017 Site Data LOCATION Near 75th Avenue north of Jomax Road DRAINAGE AREA 171 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Peoria, Arizona WATERSHED Upper New River SECTION/TOWNSHIP/RANGE S35 T5N R1E LATITUDE N 33° 44’ 09.1” | +33.73585 LONGITUDE W 112° 13’ 31.8” | -112.22550 ARIZONA STATE PLANE E 606115 | N 995412 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 04/15/1986 – WY 1986 PERIOD OF AVAILABLE DATA RECORD 08/30/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.09 Years | 13,181 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Transducer STAGE GAGE ELEVATION 2.85 feet Gage Height STAFF GAGES 21 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,391.50 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height STANDARD PROJECT FLOOD 49,300 acre-feet / 45,000 cfs inflow / 2,665 cfs outflow PROBABLE MAXIMUM FLOOD 105,000 acre-feet / 144,000 cfs inflow / 30,000 cfs outflow SPILLWAY ELEVATION 67.0 feet Gage Height TOP OF DAM ELEVATION 98.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 501 Watershed Map New River Dam Pool - water year peaks 16,000 Volume (acre-feet) 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 502 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 503 Percent Spillway Capacity New River Dam Pool, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 504 New River Dam Pool, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 4 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 5 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 6 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 7 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 8 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 10 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 11 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 12 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 13 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 14 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 15 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 16 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 17 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 18 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 19 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 20 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 21 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 22 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 23 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 24 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 25 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 26 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 27 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 28 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 29 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 30 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 31 2.9 --2.9 2.9 --2.9 --2.9 --2.9 2.9 -------------------------------------------------------------------------------MEAN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MAX 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MIN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 -----------------------------------------------------------------------------WTR YR 2024 MEAN 2.88 MAX 2.88 MIN 2.88 FCDMC Annual Surface Water Report, Water Year 2024 Page 505 New River Dam Outlet, ID #62007 Site Data LOCATION Near 75th Avenue north of Jomax Road DRAINAGE AREA 171 mi2 STREAM TYPE Engineered Channel JURISDICTION Peoria, Arizona WATERSHED Lower New River SECTION/TOWNSHIP/RANGE S35 T5N R1E LATITUDE N 33° 44’ 09.1” | +33.73585 LONGITUDE W 112° 13’ 31.8” | -112.22550 ARIZONA STATE PLANE E 606115 | N 995412 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 04/15/1986 – WY 1986 PERIOD OF AVAILABLE DATA RECORD 08/30/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.09 Years | 13,181 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.68 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,378.147 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD* 1,570 cfs | 9.36 feet | 02/15/1995 *Extreme for period of record did not occur on the date of maximum pool stage (01/08/1993) because the gage may have failed and no data are available at this gage on that date. FCDMC Annual Surface Water Report, Water Year 2024 Page 506 Watershed Map New River Dam Outlet - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 507 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 508 Peak Discharge (cfs) New River Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 509 New River at Bell Road, ID #61707 Site Data LOCATION On Bell Road west of Loop 101 DRAINAGE AREA 185 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Peoria, Arizona WATERSHED Lower New River SECTION/TOWNSHIP/RANGE S03 T3N R1E LATITUDE N 33° 38’ 16.6” | +33.63795 LONGITUDE W 112° 14’ 22.5” | -112.23959 ARIZONA STATE PLANE E 601728 | N 959805 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 04/04/1990 – WY 1990 PERIOD OF AVAILABLE DATA RECORD 04/04/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.49 Years | 12,599 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,192.113 feet NAVD88 POINT OF ZERO FLOW -0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 4,005 cfs | 5.77 feet | 09/03/1990 EXTREME OUTSIDE PERIOD OF RECORD 14,600 cfs | 12/19/1967 FCDMC Annual Surface Water Report, Water Year 2024 Page 510 Watershed Map New River at Bell Road - water year peaks 4,500 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 511 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 512 Peak Discharge (cfs) New River at Bell Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 --7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 513 New River at Glendale Avenue, ID #61507 (transducer), #61513 (radar) Site Data LOCATION West of 99th Avenue on Glendale Avenue DRAINAGE AREA 623 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Glendale, Arizona WATERSHED Lower New River SECTION/TOWNSHIP/RANGE S05 T2N R1E LATITUDE N 33° 32’ 11.8” | +33.53661 LONGITUDE W 112° 16’ 53.3” | -112.28146 ARIZONA STATE PLANE E 588614 | N 922979 USGS QUAD SHEET El Mirage 7.5-Minute STREAMGAGE INSTALLATION DATE 03/21/1990 – WY 1990 PERIOD OF AVAILABLE DATA RECORD (RADAR) 03/03/2016 – Current PERIOD OF AVAILABLE DATA RECORD (TRANSDUCER) 03/21/1990 – Current LENGTH OF AVAILABLE TRANSDUCER DATA RECORD 34.53 Years | 12,613 Days GAPS IN RECORD 08/23/2006 – 03/07/2007 STAGE GAGE TYPE Pressure Transducer TRANSDUCER GAGE ELEVATION 2.50 feet Gage Height STAGE GAGE TYPE RADAR Sensor RADAR GAGE ELEVATION 20.75 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,045.843 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 10,266 cfs | 2.90 feet | 02/10/1993 EXTREME OUTSIDE PERIOD OF RECORD 38,000 cfs | 08/1943 FCDMC Annual Surface Water Report, Water Year 2024 Page 514 Watershed Map New River at Glendale Avenue - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 515 2015 2020 2025 WY2024 Events PT Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) Peak Gage Height (feet) 1.82 1.68 1.52 1.54 1.88 1.45 1.43 1.65 2.79 1.74 Peak Discharge (cfs) 147 126 103 107 156 96 92 122 434 135 None WY2024 Events Radar Date of Peak 11/18/2023 12/22/2023 01/08/2024 01/24/2024 02/02/2024 02/08/2024 03/09/2024 03/24/2024 04/01/2024 08/18/2024 Hydrograph of peak WY 2024 flow event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 516 New River at Glendale Avenue (#61513), runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 34 33 8 12 6 11 217 13 11 15 --13 2 45 56 10 12 128 12 89 14 15 14 --13 3 28 66 10 12 33 12 19 8 12 14 --11 4 47 51 8 10 9 11 9 12 11 6 --10 --11 5 68 72 9 9 6 11 7 14 11 9 --12 6 56 58 10 9 5 12 12 13 13 9 --11 7 55 69 9 10 51 18 11 12 13 11 --12 8 35 58 10 48 33 29 11 12 12 11 9 32 49 12 46 39 61 10 10 13 12 --12 10 19 42 13 11 18 14 13 11 16 11 --12 11 40 43 9 12 12 11 14 15 17 12 --9 12 42 43 10 7 7 10 14 15 15 11 --10 13 81 25 13 6 5 12 15 14 12 13 --12 14 59 43 11 5 5 14 18 16 11 11 --13 15 58 43 12 5 6 9 16 8 14 10 11 12 16 71 37 10 6 8 8 17 6 14 11 13 10 17 56 31 9 6 10 11 19 10 12 13 13 11 18 60 64 8 5 11 13 20 10 12 --62 13 19 73 36 8 6 10 11 15 12 16 --46 12 20 16 8 9 6 11 11 19 12 15 --12 10 21 46 7 8 6 12 11 16 11 14 --17 11 22 74 10 35 9 10 12 13 11 13 --13 14 23 38 10 86 35 12 12 15 11 13 --11 11 24 11 6 21 68 13 32 15 14 11 --10 8 25 16 8 9 13 15 21 12 12 12 --14 7 26 39 8 6 8 14 12 14 12 12 --14 10 27 60 10 6 6 12 11 14 11 13 --9 11 28 29 10 7 5 12 11 14 13 14 --8 12 29 48 9 11 5 10 12 11 12 14 --6 12 30 52 10 11 6 --10 11 13 16 --12 14 31 55 --11 6 --24 --12 ----13 -------------------------------------------------------------------------------TOTAL ------------------------MEAN 46 34 13 13 18 15 23 12 13 12 17 11 MAX ------------------------MIN ------------------------AC_FT -----------------------------------------------------------------------------------------------------WTR YR 2024 TOTAL --- MEAN 19 MAX --- MIN --- AC_FT --- NOTE: There is almost always a base flow at this location due to irrigation tail water. FCDMC Annual Surface Water Report, Water Year 2024 Page 517 New River at Glendale Avenue (#61507), runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------------------------2 ------------------------3 ------------------------4 ------------------------5 ------------------------6 ------------------------7 ------------------------8 ------------------------9 ------------------------10 ------------------------11 ------------------------12 ------------------------13 ------------------------14 ------------------------------------------------15 16 ------------------------17 ------------------------18 ------------------------19 ------------------------20 ------------------------21 ------------------------22 ------------------------23 ------------------------24 ------------------------25 ------------------------26 ------------------------27 ------------------------28 ------------------------29 ------------------------30 ------------------------31 -----------------------------------------------------------------------------------------------------TOTAL ------------------------MEAN ------------------------MAX ------------------------MIN ------------------------AC_FT -----------------------------------------------------------------------------------------------------WTR YR 2024 TOTAL --- MEAN --- MAX --- MIN --- AC_FT --- FCDMC Annual Surface Water Report, Water Year 2024 Page 518 North Heights Dam, ID #78207 Site Data LOCATION Upstream from Golden Eagle Park Dam, to the north and west DRAINAGE AREA 2.02 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S09 T3N R6E LATITUDE N 33° 37’ 16.7” | +33.62131 LONGITUDE W 111° 44’ 55.3” | -111.74868 ARIZONA STATE PLANE E 751124 | N 953607 USGS QUAD SHEET Granite Reef Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 10/11/1996 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 10/11/1996 – Current LENGTH OF AVAILABLE DATA RECORD 27.97 Years | 10,217 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,781.258 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 31.7 feet Gage Height TOP OF DAM ELEVATION 39.6 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 519 Watershed Map North Heights Dam - water year peaks 35 Volume (acre-feet) 30 25 20 15 10 5 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 520 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 521 Peak Volume (ac-ft) Percent Spillway Capacity North Heights Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 522 North Heights Dam, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 523 North Heights Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.25 MAX 0.25 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2024 Page 524 Old Crosscut Canal near McDowell Road, ID #4707 Site Data LOCATION Near McDowell Road and SR143 DRAINAGE AREA Undetermined STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S06 T1N R4E LATITUDE N 33° 27’ 41.4” | +33.46149 LONGITUDE W 111° 58’ 56.1” | -111.98224 ARIZONA STATE PLANE E 680002 | N 895447 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 07/27/1994 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 07/27/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.18 Years | 11,024 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,167.013 feet NAVD88 POINT OF ZERO FLOW -0.28 feet Gage Height EXTREME FOR PERIOD OF RECORD 647 cfs | 3.15 feet | 08/03/2017 FCDMC Annual Surface Water Report, Water Year 2024 Page 525 Location Map (watershed not available) Old Crosscut Canal - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 526 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 01/08/2024 03/24/2024 03/29/2024 04/01/2024 08/22/2024 Peak Gage Height 0.52 0.62 0.58 1.10 1.10 1.64 Hydrograph of peak WY 2024 flow event, 08/22/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 527 Peak Discharge (cfs) 26 34 31 85 85 168 Old Crosscut Canal near McDowell Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 8 2 9 3 4 5 6 7 8 11 9 10 11 12 13 14 15 2 16 17 18 19 20 21 22 7 7 23 1 3 24 2 25 26 27 28 29 2 30 --31 ----2 -----------------------------------------------------------------------------------TOTAL 0 0 7 13 10 8 8 0 0 0 7 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 26 34 23 85 85 0 0 0 168 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 14 27 20 16 16 0 0 0 14 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 54 MEAN 0 MAX 168 MIN 0 AC_FT 107 NOTE: There is often a persistent base flow at this site due to SRP releases upstream, and ground water flow into the canal upstream. FCDMC Annual Surface Water Report, Water Year 2024 Page 528 Paradise Lane at 33rd Drive Basin, ID #12407 Site Data LOCATION Located along Paradise Lane at the west end of Conocido Park DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S02 T3N R2E LATITUDE N 33° 37’ 56.7” | +33.63240 LONGITUDE W 112° 07’ 41.2” | -112.12812 ARIZONA STATE PLANE E 635640 | N 957700 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/08/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/08/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.98 Years | 3,281 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.23 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,308.227 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 4.75 feet Gage Height TOP OF BASIN ELEVATION 4.9 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 529 Location Map Paradise Lane at 33rd Drive Basin - water year peaks 50 45 Volume (acre-feet) 40 35 30 25 20 15 10 5 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 530 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 01/23/2024 02/02/2024 02/07/2024 02/08/2024 02/10/2024 03/07/2024 03/08/2024 03/10/2024 03/24/2024 04/01/2024 08/18/2024 Peak Gage Height (feet) 1.25 1.70 1.40 1.20 1.50 1.58 0.83 1.87 1.28 1.03 0.80 1.87 1.08 Peak Volume (ac-ft) 9.5 14.0 10.9 9.0 11.8 12.7 5.8 15.8 9.8 7.5 5.6 15.8 7.9 Hydrograph of peak 2024 impoundment event, 12/22/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 531 Percent Spillway Capacity 11.3% 16.5% 12.9% 10.7% 14.0% 15.0% 6.9% 18.7% 11.6% 8.9% 6.6% 18.7% 9.3% Paradise Lane at 33rd Drive Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 11 2 5 3 1 4 5 6 1 7 4 6 8 4 3 9 5 10 2 1 11 3 12 13 14 15 16 17 1 18 3 3 19 20 21 22 6 23 4 6 24 4 25 26 27 28 29 30 --31 ----3 -----------------------------------------------------------------------------------TOTAL 0 3 10 7 18 26 11 0 0 0 5 0 MEAN 0 0 0 0 1 1 0 0 0 0 0 0 MAX 0 16 17 16 17 18 18 0 0 0 15 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 6 20 14 36 52 21 0 0 0 10 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 80 MEAN 0 MAX 18 MIN 0 AC_FT 158 FCDMC Annual Surface Water Report, Water Year 2024 Page 532 Paradise Lane at 33rd Drive Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 7 2 3 3 4 5 6 1 7 3 4 8 3 2 9 2 10 1 1 11 1 12 13 14 15 16 17 18 1 2 19 20 21 22 4 23 2 3 24 2 25 26 27 28 29 30 ------1 ------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 10 14 11 13 16 16 0 0 0 8 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 16 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 533 Paradise Lane at 33rd Drive, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.3 0.2 1.0 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.5 0.6 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.5 0.4 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.5 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.5 0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.4 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.3 0.2 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 MAX 0.2 1.2 1.7 1.4 1.6 1.9 1.9 0.2 0.2 0.2 1.1 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.24 MAX 1.87 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2024 Page 534 Paradise Lane at 47th Avenue Basin, ID #13707 Site Data LOCATION Located on the northeast corner of Paradise Ln and 47th Ave DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S04 T3N R2E LATITUDE N 33° 37’ 56.8” | +33.63244 LONGITUDE W 112° 09’ 31.4” | -112.15873 ARIZONA STATE PLANE E 626320 | N 957720 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/08/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/08/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.98 Years | 3,281 Days GAPS IN RECORD 03/21/2017 – 02/21/2018 (337 days) STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,267.39 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 4.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 535 Location Map Paradise Lane at 47th Avenue Basin - water year peaks 30.00 Volume (acre-feet) 25.00 20.00 15.00 10.00 5.00 0.00 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 536 2025 WY2024 Events Date of Peak 04/01/2024 08/18/2024 Peak Gage Height (feet) 0.55 0.60 Peak Volume (ac-ft) 5.1 5.5 Hydrograph of peak 2024 impoundment event, 08/18/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 537 Percent Spillway Capacity 12.2% 13.3% Paradise Lane at 47th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ----------2 --------3 --------4 --------5 --------6 --------7 --------8 --------9 --------10 --------11 --------12 --------13 --------14 --------15 --------16 --------17 --------18 --------19 --------20 --------21 --------22 --------23 --------24 --------25 --------26 --------27 --------28 --------29 --------30 ----------31 ---------------------------------------------------------------------------------------------TOTAL --------0 0 0 0 0 0 0 0 MEAN --------0 0 0 0 0 0 0 0 MAX --------0 1 2 0 0 0 2 0 MIN --------0 0 0 0 0 0 0 0 AC_FT --------0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 2 MIN 0 AC_FT 1 NOTE: Discharge rating applied on February 2nd at this location. FCDMC Annual Surface Water Report, Water Year 2024 Page 538 Paradise Lane at 47th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 3 2 0 3 4 5 0 0 0 5 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 539 Paradise Lane at 47th Avenue Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.2 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.1 0.2 0.1 MAX 0.1 0.3 0.2 0.1 0.3 0.4 0.5 0.1 0.1 0.1 0.6 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.13 MAX 0.60 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2024 Page 540 Pecos Sediment Basin, ID #70007 Site Data LOCATION In Pecos Park near 48th Street and Loop 202 DRAINAGE AREA 5.0 mi2 STREAM TYPE Engineered Drainage System JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S32 T1S R4E LATITUDE N 33° 17’ 38.3” | +33.29396 LONGITUDE W 111° 58’ 39.0” | -111.97751 ARIZONA STATE PLANE E 681411 | N 834493 USGS QUAD SHEET Guadalupe 7.5-minute STREAMGAGE INSTALLATION DATE 01/06/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 01/06/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.73 Years | 5,747 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.38 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,141.835 feet NAVD88 POINT OF ZERO FLOW (GATED OUTLET) 4.71 feet Gage Height SEDIMENT BASIN WEIR ELEVATION 18.0 feet Gage Height BASIN SPILLWAY CREST ELEVATION 21.0 feet Gage Height TOP OF BASIN ELEVATION 22.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 541 Location Map Pecos Basin Sediment - water year peaks 60 Volume (acre-feet) 50 40 30 20 10 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 542 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 04/01/2024 07/15/2024 08/18/2024 Peak Gage Height (feet) 2.25 2.38 1.98 2.78 2.38 4.32 Peak Volume (ac-ft) 4.1 4.4 3.5 5.2 4.4 8.3 Hydrograph of peak 2024 impoundment event, 08/18/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 543 Percent Spillway Capacity 9.1% 9.6% 7.5% 11.1% 9.3% 17.8% Pecos Sediment Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 ----30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 --0 0 0 0 0 0 0 0 MIN 0 0 0 --0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 544 Pecos Sediment Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --4 ------2 3 5 ------3 2 5 ----4 --1 --4 ----4 --5 -1 --4 ----6 --3 ----7 --1 --8 9 ----10 1 ----11 1 ----12 -1 ------13 -1 ------------14 --------15 4 ------16 4 17 4 ----18 ------4 7 19 ------3 8 20 ------2 7 --21 ------1 7 ----6 22 1 ----7 23 4 4 ------6 24 4 4 25 4 4 --------6 26 3 3 ------5 27 2 3 ------5 28 1 1 ----4 29 1 ------4 ------2 30 --------------1 --31 -----------------------------------------------------------------------------MEAN 0 0 1 1 0 0 1 0 0 1 2 0 MAX 0 1 4 4 4 --5 0 0 4 8 0 MIN 0 0 0 ---1 --0 0 0 ----0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 8 MIN -1 FCDMC Annual Surface Water Report, Water Year 2024 Page 545 Pecos Sediment Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.5 1.5 1.5 1.5 1.4 1.4 2.5 1.4 1.4 1.4 1.4 1.5 2 1.5 1.5 1.5 1.5 1.9 1.4 2.6 1.4 1.4 1.4 1.4 1.4 3 1.5 1.5 1.5 1.5 1.8 1.4 2.5 1.4 1.4 1.4 1.4 1.4 4 1.5 --1.5 1.5 1.7 1.4 2.4 1.4 1.4 1.4 1.4 1.4 5 1.5 1.5 1.5 1.5 1.5 1.4 2.2 1.4 1.4 1.4 1.4 1.4 6 1.5 1.5 1.5 1.5 1.4 1.4 2.0 1.4 1.4 1.4 1.4 1.4 7 1.5 1.5 1.5 1.5 1.5 1.4 1.9 1.4 1.4 1.4 1.4 1.4 8 1.5 1.5 1.5 1.5 1.4 1.4 1.7 1.4 1.4 1.4 1.4 1.4 9 1.5 1.5 1.5 1.5 1.5 1.4 1.5 1.4 1.4 1.4 1.4 1.4 10 1.5 1.5 1.5 1.5 1.6 1.4 1.4 1.4 1.4 1.4 1.4 1.4 11 1.5 1.5 1.5 1.5 1.6 1.4 1.4 1.4 1.4 1.4 1.4 1.4 12 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 13 1.5 0.0 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 14 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 15 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 2.3 1.4 1.4 16 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 2.2 1.4 1.4 17 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 2.1 1.4 1.4 18 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 2.0 3.9 1.4 19 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.9 4.1 1.4 20 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.7 3.8 1.4 21 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.6 3.5 1.4 22 1.5 1.5 1.6 1.5 1.4 1.4 1.4 1.4 1.4 1.5 3.4 1.4 23 1.5 1.5 2.2 2.2 1.4 1.4 1.4 1.4 1.4 1.4 3.6 1.4 24 1.5 1.5 2.1 2.3 1.4 1.4 1.4 1.4 1.4 1.4 3.3 1.4 25 1.5 1.5 2.0 2.2 1.4 1.4 1.4 1.4 1.4 1.4 3.1 1.4 26 1.5 1.5 1.9 2.0 1.4 1.4 1.4 1.4 1.4 1.4 2.8 1.4 27 1.5 1.5 1.7 1.9 1.4 1.4 1.4 1.4 1.4 1.4 2.5 1.4 28 1.5 1.5 1.7 1.7 1.4 1.4 1.4 1.4 1.4 1.4 2.3 1.4 29 1.5 1.5 1.6 1.5 1.4 1.4 1.4 1.4 1.4 1.4 2.1 1.4 30 1.5 1.5 1.5 1.4 --1.4 1.4 1.4 1.4 1.4 1.8 1.4 31 1.5 --1.5 1.4 --1.4 --1.4 --1.4 1.6 -------------------------------------------------------------------------------MEAN 1.5 1.5 1.6 1.6 1.5 1.4 1.6 1.4 1.4 1.5 2.1 1.4 MAX 1.5 1.6 2.3 2.4 2.0 1.4 2.8 1.4 1.4 2.4 4.4 1.5 MIN 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 1.4 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.53 MAX 4.40 MIN 1.38 FCDMC Annual Surface Water Report, Water Year 2024 Page 546 Pecos Basin Pool, ID #70017 Site Data LOCATION In Pecos Park near 48th Street and Loop 202 DRAINAGE AREA 5.0 mi2 STREAM TYPE Engineered Drainage System JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S32 T1S R4E LATITUDE N 33° 17’ 38.3” | +33.29369 LONGITUDE W 111° 58’ 39.0” | -111.97751 ARIZONA STATE PLANE E 681411 | N 834493 USGS QUAD SHEET Guadalupe 7.5-minute STREAMGAGE INSTALLATION DATE 01/06/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 01/06/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.73 Years | 5,747 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 6.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,141.835 feet NAVD88 POINT OF ZERO FLOW (GATED OUTLET, ABOUT 1600 FT DS) 1.75 feet Gage Height SEDIMENT BASIN WEIR ELEVATION 18.0 feet Gage Height SPILLWAY CREST ELEVATION 21.0 feet Gage Height TOP OF DAM ELEVATION 22.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 547 Location Map FCDMC Annual Surface Water Report, Water Year 2024 Page 548 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No impoundments recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 549 Peak Volume (ac-ft) Percent Spillway Capacity Pecos Basin Pool, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 550 Pecos Basin Pool, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 551 Pecos Basin Pool, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 2 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 3 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 4 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 5 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 7 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 8 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 9 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 10 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 11 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 12 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 13 6.0 0.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 14 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 15 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 16 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 17 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 18 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 19 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 20 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 21 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 22 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 23 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 24 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 25 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 26 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 27 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 28 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 29 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 30 6.0 6.0 6.0 6.0 --6.0 6.0 6.0 6.0 6.0 6.0 6.0 31 6.0 --6.0 6.0 --6.0 --6.0 --6.0 6.0 -------------------------------------------------------------------------------MEAN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 MAX 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 MIN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 6.05 MAX 6.05 MIN 6.05 FCDMC Annual Surface Water Report, Water Year 2024 Page 552 Pecos North Inflow, ID #69307 Site Data LOCATION Located on 48th Street south of Frye Road DRAINAGE AREA Not Determined STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S31 T1S R4E LATITUDE N 33° 17’ 49.0” | +33.29695 LONGITUDE W 111° 58’ 49.8” | -111.98051 ARIZONA STATE PLANE E 680495 | N 835552 USGS QUAD SHEET Guadalupe 7.5-minute STREAMGAGE INSTALLATION DATE 01/21/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 01/21/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.69 Years | 5,732 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,173.238 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 412 cfs | 3.12 feet Gage Height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 553 Location Map (watershed not defined) Pecos Inflow North - water year peaks 300 Discharge (cfs) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 554 2020 2025 WY2024 Events Date of Peak 04/01/2024 08/18/2024 08/22/2024 Peak Gage Height 0.60 1.30 0.53 Hydrograph of peak WY 2024 flow event, 08/18/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 555 Peak Discharge (cfs) 34 97 29 Pecos North Inflow, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 --3 --4 ------5 --6 7 8 --9 10 11 12 13 --14 15 2 16 --17 18 3 19 --20 --21 --22 --3 23 24 25 --26 27 28 29 ----30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 2 0 0 3 6 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 34 0 0 18 97 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 4 0 0 6 12 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 11 MEAN 0 MAX 97 MIN 0 AC_FT 22 FCDMC Annual Surface Water Report, Water Year 2024 Page 556 Pecos East Inflow, ID #69507 Site Data LOCATION Located east of 48th Street on the north side of SR 202L DRAINAGE AREA Not Determined STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S32 T1S R4E LATITUDE N 33° 17’ 47.9” | +33.29663 LONGITUDE W 111° 58’ 41.5” | -111.97820 ARIZONA STATE PLANE E 681200 | N 8354732 USGS QUAD SHEET Guadalupe 7.5-minute STREAMGAGE INSTALLATION DATE 01/21/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 01/21/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.69 Years | 5,732 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.73 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,165.922 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 261 cfs | 1.86 feet gage height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 557 Location Map Pecos Inflow East - water year peaks 300 Discharge (cfs) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 558 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 559 Peak Discharge (cfs) Pecos East Inflow, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 560 Pecos West Inflow, ID #69807 Site Data LOCATION Located west of 48th Street and north of SR 202L DRAINAGE AREA Not Determined STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S31 T1S R4E LATITUDE N 33° 17’ 39.3” | +33.29425 LONGITUDE W 111° 58’ 58.7” | -111.98298 ARIZONA STATE PLANE E 679729 | N 834605 USGS QUAD SHEET Guadalupe 7.5-minute STREAMGAGE INSTALLATION DATE 01/21/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 01/21/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.69 Years | 5,732 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,162.976 feet NAVD88 POINT OF ZERO FLOW 0.05 feet Gage Height EXTREME FOR PERIOD OF RECORD 124 cfs | 2.60 feet Gage Height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 561 Location Map Pecos Inflow West - water year peaks 180 160 Discharge (cfs) 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 562 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 563 Peak Discharge (cfs) Pecos West Inflow, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 --4 ----5 --6 --7 8 --9 10 11 12 13 14 15 16 17 18 19 20 21 --22 23 24 25 26 27 --28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 564 Phoenix Dam #2A, ID #8907 Site Data LOCATION On 7th Street south of Thunderbird Road DRAINAGE AREA 0.47 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S16 T3N R3E LATITUDE N 33° 36’ 13.2” | +33.60366 LONGITUDE W 112° 03’ 52.8” | -112.06466 ARIZONA STATE PLANE E 654947 | N 947202 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 06/29/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 06/29/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.26 Years | 5,573 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,393.62 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 16.5 feet Gage Height TOP OF DAM ELEVATION 22.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 565 Watershed Map Phoenix Dam #2a - water year peaks 25 Volume (acre-feet) 20 15 10 5 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 566 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 01/23/2024 04/01/2024 08/18/2024 Peak Gage Height (feet) 1.71 2.06 0.74 4.15 1.27 Peak Volume (ac-ft) 3.5 3.9 1.6 6.5 2.8 Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 567 Percent Spillway Capacity 5.9% 6.6% 2.8% 11.1% 4.8% Phoenix Dam #2A, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 5 7 2 1 1 18 0 0 0 3 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 2 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2 MEAN 0 MAX 18 MIN 0 AC_FT 3 FCDMC Annual Surface Water Report, Water Year 2024 Page 568 Phoenix Dam #2A, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 4 4 2 1 1 6 0 0 0 3 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 6 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 569 Phoenix Dam #2A, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 1.7 2.1 0.7 0.5 0.6 4.2 0.0 0.0 0.0 1.3 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 4.15 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 570 Phoenix Dam #2B, ID #9907 Site Data LOCATION On Thunderbird Road east of 7th Street DRAINAGE AREA 0.48 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S16 T3N R3E LATITUDE N 33° 36’ 23.8” | +33.60660 LONGITUDE W 112° 03’ 28.4” | -112.05789 ARIZONA STATE PLANE E 656947 | N 948279 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 06/30/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 06/30/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.26 Years | 5,572 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,398.20 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 16.0 feet Gage Height TOP OF DAM ELEVATION 22.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 571 Watershed Map Phoenix Dam #2b - water year peaks 14 Volume (acre-feet) 12 10 8 6 4 2 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 572 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 573 Peak Volume (ac-ft) Percent Spillway Capacity Phoenix Dam #2B, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 2 0 0 0 0 3 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 1 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 3 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2024 Page 574 Phoenix Dam #2B, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 575 Phoenix Dam #2B, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.3 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 0.42 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 576 Phoenix Dam #3, ID #11507 Site Data LOCATION In the Sunnyslope area of Phoenix, east of Cave Creek Road DRAINAGE AREA 0.47 mi2 STREAM TYPE Dam of Natural Drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S22 T3N R3E LATITUDE N 33° 35’ 11.6” | +33.58656 LONGITUDE W 112° 02’ 48.4” | -112.04678 ARIZONA STATE PLANE E 660374 | N 940971 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 12/18/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 12/18/2001 – Current LENGTH OF AVAILABLE DATA RECORD 22.79 Years | 8,323 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,358.001 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 24.0 feet Gage Height TOP OF DAM ELEVATION 30.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 577 Watershed Map Phoenix Dam #3 - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 578 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 04/01/2024 3.94 1.0 1.6% Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 579 Phoenix Dam #3, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 31 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 2 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 31 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2024 Page 580 Phoenix Dam #3, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 581 Phoenix Dam #3, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.7 0.7 0.7 0.7 0.7 2 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 3 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 4 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 5 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 9 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 10 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 11 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 12 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 13 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 14 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 15 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 16 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 17 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 18 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 19 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 20 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 21 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 22 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 23 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 24 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 25 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 26 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 27 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 28 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 29 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 30 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 0.7 0.7 0.7 0.7 31 0.7 --0.7 0.7 --0.7 --0.7 --0.7 0.7 -------------------------------------------------------------------------------MEAN 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 MAX 0.7 0.8 0.7 0.7 0.7 0.7 3.9 0.7 0.7 0.7 0.7 0.7 MIN 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.65 MAX 3.94 MIN 0.65 FCDMC Annual Surface Water Report, Water Year 2024 Page 582 Phoenix Dam #4, ID #12207 Site Data LOCATION East of 18th Street north of Northern Avenue DRAINAGE AREA 0.48 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S34 T3N R3E LATITUDE N 33° 33’ 30.9” | +33.55857 LONGITUDE W 112° 02’ 33.8” | -112.04272 ARIZONA STATE PLANE E 661609 | N 930798 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 07/06/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 07/06/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.24 Years | 5,566 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,319.28 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 15.0 feet Gage Height TOP OF DAM ELEVATION 21.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 583 Watershed Map Phoenix Dam #4 - water year peaks 25 Volume (acre-feet) 20 15 10 5 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 584 2020 2025 WY2024 Events Date of Peak 01/23/2024 04/01/2024 07/24/2024 Peak Gage Height (feet) 1.40 5.96 1.72 Peak Volume (ac-ft) 0.3 3.7 0.3 Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 585 Percent Spillway Capacity 0.8% 8.8% 0.7% Phoenix Dam #4, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 10 0 0 21 0 0 11 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 0 2 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 21 MIN 0 AC_FT 3 FCDMC Annual Surface Water Report, Water Year 2024 Page 586 Phoenix Dam #4, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 4 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 587 Phoenix Dam #4, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 1.4 0.1 0.1 6.0 0.1 0.1 1.7 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.10 MAX 5.96 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2024 Page 588 Phoenix Dam #7, ID #13307 Site Data LOCATION Located on the north side of North Mountain DRAINAGE AREA 0.60 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S17 T3N R3E LATITUDE N 33° 36’ 04.4” | +33.60123 LONGITUDE W 112° 04’ 21.5” | -112.07264 ARIZONA STATE PLANE E 652520 | N 946342 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 12/19/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 12/19/2001 – Current LENGTH OF AVAILABLE DATA RECORD 22.78 Years | 8,322 Days GAPS IN RECORD 01/30/2009 – 05/11/2009 STAGE GAGE TYPE None STAGE GAGE ELEVATION 0.12 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,371.340 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 22.4 feet Gage Height TOP OF DAM ELEVATION 29.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 589 Watershed Map Phoenix Dam #7 - water year peaks 25 Volume (acre-feet) 20 15 10 5 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 590 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 02/01/2024 04/01/2024 Peak Gage Height (feet) 3.45 1.75 0.78 1.58 Peak Volume (ac-ft) 0.9 0.5 0.2 0.4 Hydrograph of peak 2024 impoundment event, 11/18/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 591 Percent Spillway Capacity 0.5% 0.0% 0.0% 0.0% Phoenix Dam #7, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 1 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 28 12 0 3 0 10 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 1 1 0 0 0 1 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1 MEAN 0 MAX 28 MIN 0 AC_FT 3 FCDMC Annual Surface Water Report, Water Year 2024 Page 592 Phoenix Dam #7, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 --10 --11 --12 --13 ----14 --15 --16 17 --18 --19 --20 --21 ----22 --23 --24 25 --26 --27 --28 --29 ------30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 1 0 --0 0 0 0 0 0 0 0 MIN 0 0 0 --0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 593 Phoenix Dam #7, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.2 0.2 0.2 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.2 --0.2 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.2 3.4 1.8 0.2 0.8 0.1 1.6 0.1 0.1 0.1 0.1 0.1 MIN 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.13 MAX 3.45 MIN 0.12 FCDMC Annual Surface Water Report, Water Year 2024 Page 594 Phoenix Dam #99, ID #12707 Site Data LOCATION Near SR 51 and 32nd Street DRAINAGE AREA 0.13 mi2 STREAM TYPE Dam of natural and local drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S26 T3N R3E LATITUDE N 33° 34’ 29.1” | +33.57476 LONGITUDE W 112° 00’ 51.4” | -112.01428 ARIZONA STATE PLANE E 670228 | N 936703 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 07/07/2009 – WY 2009 PERIOD OF AVAILABLE DATA RECORD 07/07/2009 – Current LENGTH OF AVAILABLE DATA RECORD 15.24 Years | 5,565 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,441.71 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 19.8 feet Gage Height TOP OF DAM ELEVATION 24.3 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 595 Watershed Map Phoenix Dam #99 - water year peaks 9 8 Stage (feet) 7 Impoundments occur in this dam above 9.0 feet stage. There have been no event exceeding that criteria since installation. 6 5 4 3 2 1 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 596 2020 2025 WY2024 Events Date of Peak 12/22/2023 01/23/2024 02/08/2024 04/01/2024 07/24/2024 08/21/2024 Peak Gage Height (feet) 0.67 0.87 0.90 1.20 0.50 0.52 Peak Volume (ac-ft) 0.0 0.0 0.0 0.0 0.0 0.0 Hydrograph of peak 2024 impoundment event, 03/31/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 597 Percent Spillway Capacity 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Phoenix Dam #99, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 2 3 3 4 5 0 0 2 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 1 0 0 0 0 0 2 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2 MEAN 0 MAX 5 MIN 0 AC_FT 4 FCDMC Annual Surface Water Report, Water Year 2024 Page 598 Phoenix Dam #99, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 599 Phoenix Dam #99, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.7 0.9 0.9 1.0 1.2 0.0 0.0 0.5 0.5 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.00 MAX 1.20 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 600 Phoenix East Park Dam, ID #13007 Site Data LOCATION Near Peoria and Seventh Avenues DRAINAGE AREA 0.09 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S29 T3N R3E LATITUDE N 33° 34’ 45.2” | +33.57923 LONGITUDE W 112° 04’ 36.3” | -112.07676 ARIZONA STATE PLANE E 651116 | N 938331 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 11/28/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 11/28/2001 – Current LENGTH OF AVAILABLE DATA RECORD 22.84 Years | 8,343 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,350.17 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 19.8 feet Gage Height TOP OF DAM ELEVATION 24.8 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 601 Watershed Map Phoenix East Park Dam - water year peaks 3.5 Volume (acre-feet) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 602 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 603 Peak Volume (ac-ft) Percent Spillway Capacity Phoenix East Park Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 604 Phoenix East Park Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 605 Phoenix East Park Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.10 MAX 0.10 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2024 Page 606 Phoenix West Park Dam, ID #13507 Site Data LOCATION Near Peoria and Seventh Avenues DRAINAGE AREA 0.49 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S22 T3N R3E LATITUDE N 33° 35’ 02.8” | +33.58412 LONGITUDE W 112° 04’ 55.0” | -112.08195 ARIZONA STATE PLANE E 649658 | N 940031 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 11/29/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 11/29/2001 – Current LENGTH OF AVAILABLE DATA RECORD 22.84 Years | 8,342 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,315.72 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 24.0 feet Gage Height TOP OF DAM ELEVATION 30.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 607 Watershed Map Phoenix West Park Dam - water year peaks 20 18 Volume (acre-feet) 16 14 12 10 8 6 4 2 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 608 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 11/18/2023 0.20 1.2 1.1% Hydrograph of peak 2024 impoundment event, 11/18/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 609 Phoenix West Park Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 11 11 2 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 3 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 22 22 3 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 24 MEAN 0 MAX 3 MIN 0 AC_FT 48 FCDMC Annual Surface Water Report, Water Year 2024 Page 610 Phoenix West Park Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 1 0 0 --0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 611 Phoenix West Park Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.2 0.2 0.2 0.2 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.2 --0.2 0.2 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.2 0.8 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIN 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.14 MAX 0.78 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2024 Page 612 Phoenix Zoo Dam #3, ID #4307 Site Data LOCATION Located in Papago Park on the north side of the Phoenix Zoo property. DRAINAGE AREA 0.04 mi2 STREAM TYPE Dam with permanent lake JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S04 T1N R4E LATITUDE N 33° 27’ 10.1” | +33.45281 LONGITUDE W 111° 56’ 53.1” | -111.94808 ARIZONA STATE PLANE E 690420 | N 892280 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 04/25/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 04/25/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.44 Years | 3,081 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 8.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,230.16 feet NAVD88 / 1,229.50 feet M.S.L. POINT OF ZERO FLOW 9.0 feet Gage Height SPILLWAY CREST ELEVATION 12.80 feet Gage Height MINIMUM TOP OF DAM ELEVATION 13.40 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 613 Location Map Phoenix Zoo Dam #3 - water year peaks 13.2 13.1 Volume (acre-feet) 13 12.9 12.8 12.7 12.6 12.5 12.4 12.3 12.2 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 614 2025 WY2024 Events Date of Peak Peak Gage Height (feet) 02/20/2024 9.96 08/23/2024 9.88 *basin is kept at a base capacity of 90.6% capacity Peak Volume (ac-ft) 13.0 13.0 Hydrograph of peak 2024 impoundment, 02/20/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 615 Percent Spillway Capacity 98.2% 98.2% Phoenix Zoo Dam #3, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------------------------2 ------------------------3 ------------------------4 ------------------------5 ------------------------6 ------------------------7 ------------------------8 ------------------------9 ------------------------10 ------------------------11 ------------------------12 ------------------------13 ------------------------14 ------------------------------------------------15 16 ------------------------17 ------------------------18 ------------------------19 ------------------------20 ------------------------21 ------------------------22 ------------------------23 ------------------------24 ------------------------25 ------------------------26 ------------------------27 ------------------------28 ------------------------29 ------------------------30 ------------------------31 -----------------------------------------------------------------------------------------------------TOTAL ------------------------MEAN ------------------------MAX ------------------------MIN ------------------------AC_FT -----------------------------------------------------------------------------------------------------WTR YR 2024 TOTAL --- MEAN --- MAX --- MIN --- AC_FT --- FCDMC Annual Surface Water Report, Water Year 2024 Page 616 Phoenix Zoo Dam #3, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 13 13 13 13 13 13 13 13 13 13 13 13 2 13 13 13 13 13 13 13 13 13 13 13 13 3 13 13 13 13 13 13 13 13 13 13 13 13 4 13 13 13 13 13 13 13 13 13 13 13 13 5 13 13 13 13 13 13 13 13 13 13 13 13 6 13 13 13 13 13 13 13 13 13 13 13 13 7 13 13 13 13 13 13 13 13 13 13 13 13 8 13 13 13 13 13 13 13 13 13 13 13 13 9 13 13 13 13 13 13 13 13 13 13 13 13 10 13 13 13 13 13 13 13 13 13 13 13 13 11 13 13 13 13 13 13 13 13 13 13 13 13 12 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 14 13 13 13 13 13 13 13 13 13 13 13 13 15 13 13 13 13 13 13 13 13 13 13 13 13 16 13 13 13 13 13 13 13 13 13 13 13 13 17 13 13 13 13 13 13 13 13 13 13 13 13 18 13 13 13 13 13 13 13 13 13 13 13 13 19 13 13 13 13 13 13 13 13 13 13 13 13 20 13 13 13 13 13 13 13 13 13 13 13 13 21 13 13 13 13 13 13 13 13 13 13 13 13 22 13 13 13 13 13 13 13 13 13 13 13 13 23 13 13 13 13 13 13 13 13 12 13 13 13 24 13 13 13 13 13 13 13 13 12 13 13 13 25 13 13 13 13 13 13 13 13 12 13 13 13 26 13 13 13 13 13 13 13 13 13 13 13 13 27 13 13 13 13 13 13 13 13 13 13 13 13 28 13 13 13 13 13 12 13 12 13 13 13 13 29 13 13 13 13 13 12 13 12 13 13 13 13 30 13 13 13 13 --12 13 13 13 13 13 13 31 13 --13 13 --13 --13 --13 13 -------------------------------------------------------------------------------MEAN 13 13 13 13 13 13 13 13 13 13 13 13 MAX 13 13 13 13 13 13 13 13 13 13 13 13 MIN 13 13 13 13 13 12 13 12 12 13 13 13 -----------------------------------------------------------------------------WTR YR 2024 MEAN 13 MAX 13 MIN 12 FCDMC Annual Surface Water Report, Water Year 2024 Page 617 Phoenix Zoo Dam #3, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9.5 9.8 9.4 9.8 9.7 9.9 9.6 9.6 9.5 9.5 9.7 9.9 2 9.5 9.8 9.4 9.9 9.7 9.9 9.6 9.9 9.5 9.5 9.8 9.9 3 9.5 9.7 9.4 9.9 9.7 9.8 9.5 9.5 9.5 9.5 9.7 9.9 4 9.5 9.7 9.4 10.1 9.6 9.7 9.4 9.4 9.3 9.5 9.6 9.9 5 9.5 9.7 9.4 10.0 9.6 9.7 9.3 9.3 9.4 9.6 9.6 9.9 6 9.5 9.7 9.4 10.0 9.6 9.6 9.2 9.2 9.6 9.7 9.5 9.9 7 9.5 9.7 9.4 9.9 9.6 9.7 9.4 9.2 9.6 9.7 9.4 9.9 8 9.5 9.7 9.5 9.9 9.5 9.8 9.6 9.2 9.5 9.7 9.4 9.9 9 9.5 9.7 9.6 9.8 9.5 9.8 9.8 9.2 9.4 9.6 9.5 9.8 10 9.6 9.7 9.6 9.8 9.6 9.8 9.9 9.2 9.4 9.6 9.6 9.8 11 9.6 9.6 9.6 9.9 9.6 9.7 9.9 9.3 9.4 9.5 9.7 9.9 12 9.6 9.6 9.6 9.9 9.6 9.6 9.7 9.3 9.5 9.5 9.8 9.8 13 9.5 9.6 9.5 9.9 9.6 9.6 9.6 9.3 9.5 9.6 9.7 9.7 14 9.5 9.5 9.4 9.8 9.6 9.5 9.5 9.4 9.3 9.6 9.6 9.7 15 9.5 9.5 9.4 9.8 9.6 9.6 9.4 9.4 9.4 9.6 9.6 9.7 16 9.5 9.5 9.5 9.8 9.5 9.9 9.4 9.5 9.5 9.6 9.7 9.8 17 9.5 9.4 9.5 9.8 9.5 10.0 9.3 9.5 9.5 9.5 9.7 9.8 18 9.5 9.4 9.6 9.8 9.6 9.9 9.3 9.4 9.5 9.4 9.7 10.0 19 9.5 9.5 9.6 9.7 9.8 9.9 9.2 9.4 9.5 9.5 9.6 10.1 20 9.6 9.5 9.6 9.7 9.9 9.8 9.2 9.3 9.4 9.5 9.4 10.0 21 9.9 9.5 9.6 9.7 9.9 9.7 9.2 9.3 9.3 9.5 9.4 9.9 22 9.8 9.4 9.6 9.7 9.7 9.6 9.2 9.3 9.2 9.5 9.5 9.7 23 9.7 9.4 9.6 9.8 9.6 9.4 9.5 9.3 9.1 9.6 9.9 9.6 24 9.7 9.3 9.6 9.8 9.5 9.3 9.8 9.3 9.0 9.5 9.8 9.5 25 9.7 9.3 9.5 9.8 9.6 9.3 9.9 9.3 9.1 9.6 9.7 9.3 26 9.8 9.3 9.5 9.7 9.6 9.2 9.8 9.2 9.5 9.6 9.7 9.3 27 9.8 9.4 9.4 9.7 9.7 9.1 9.6 9.1 9.7 9.7 9.7 9.2 28 9.8 9.4 9.5 9.7 9.8 9.1 9.4 9.1 9.7 9.7 9.5 9.5 29 9.8 9.4 9.7 9.7 9.8 9.0 9.3 9.0 9.6 9.7 9.4 9.6 30 9.8 9.4 9.9 9.7 --9.1 9.3 9.4 9.6 9.6 9.3 9.7 31 9.8 --9.8 9.7 --9.3 --9.6 --9.6 9.6 -------------------------------------------------------------------------------MEAN 9.6 9.5 9.5 9.8 9.6 9.6 9.5 9.3 9.4 9.6 9.6 9.7 MAX 9.9 9.8 9.9 10.1 10.0 10.0 10.0 9.9 9.7 9.7 9.9 10.1 MIN 9.5 9.3 9.3 9.7 9.4 9.0 9.1 9.0 9.0 9.4 9.3 9.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 9.57 MAX 10.10 MIN 8.99 FCDMC Annual Surface Water Report, Water Year 2024 Page 618 Phoenix Zoo Dam #5, ID #4407 Site Data LOCATION Located within the Phoenix Zoo property at the southwest corner. DRAINAGE AREA 0.23 mi2 STREAM TYPE Dam with permanent lake JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S09 T1N R4E LATITUDE N 33° 26’ 57.1” | +33.44920 LONGITUDE W 111° 57’ 04.2” | -111.95117 ARIZONA STATE PLANE E 689475 | N 890965 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 04/28/2016 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 04/28/2016 – Current LENGTH OF AVAILABLE DATA RECORD 8.43 Years | 3,078 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 7.75 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,205.00 feet NAVD88 / 1,204.50 feet M.S.L. POINT OF ZERO FLOW Approximately 7.8 feet Gage Height SPILLWAY CREST ELEVATION 8.70 feet Gage Height AVERAGE TOP OF DAM ELEVATION 9.20 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 619 Location Map Phoenix Zoo Dam #5 - water year peaks 12 Volume (acre-feet) 10 8 6 4 2 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 620 2025 WY2024 Events Percent Spillway Capacity Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) 04/01/2024 100.3% 8.72 9.6 08/22/2024 101.8% 8.84 9.8 *It is not uncommon for this site to overtop every year. The base capacity is kept at approximately 95% capacity Hydrograph of peak WY 2024 impoundment event, 08/22/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 621 Phoenix Zoo Dam #5, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ------------------------2 ------------------------3 ------------------------4 ------------------------5 ------------------------6 ------------------------7 ------------------------8 ------------------------9 ------------------------10 ------------------------11 ------------------------12 ------------------------13 ------------------------14 ------------------------------------------------15 16 ------------------------17 ------------------------18 ------------------------19 ------------------------20 ------------------------21 ------------------------22 ------------------------23 ------------------------24 ------------------------25 ------------------------26 ------------------------27 ------------------------28 ------------------------29 ------------------------30 ------------------------31 -----------------------------------------------------------------------------------------------------TOTAL ------------------------MEAN ------------------------MAX ------------------------MIN ------------------------AC_FT -----------------------------------------------------------------------------------------------------WTR YR 2024 TOTAL --- MEAN --- MAX --- MIN --- AC_FT --- FCDMC Annual Surface Water Report, Water Year 2024 Page 622 Phoenix Zoo Dam #5, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 9 9 9 9 9 9 9 9 9 9 9 2 9 9 9 9 9 9 9 10 9 9 10 10 3 9 9 9 9 9 9 9 10 9 9 9 10 4 9 9 9 9 9 9 9 9 9 --9 10 --9 10 5 9 9 9 9 9 9 9 9 9 --9 10 6 9 9 9 9 9 9 9 9 9 --9 10 7 9 9 9 9 9 9 9 9 9 8 9 9 9 9 9 9 9 9 9 9 9 10 9 9 9 9 9 9 9 9 9 9 9 9 10 10 9 9 9 9 9 9 9 9 9 9 9 10 11 9 9 9 9 9 9 9 9 9 9 9 10 12 9 9 9 9 9 9 9 9 9 9 9 10 13 9 9 9 9 9 9 9 9 9 9 9 10 14 9 9 9 9 9 9 9 9 9 9 9 10 15 9 9 9 9 9 9 9 9 9 9 9 10 16 9 9 9 9 9 9 9 9 9 9 9 10 17 9 9 9 9 10 9 9 9 9 9 9 10 18 9 9 9 9 9 9 9 9 9 9 9 10 19 9 9 9 9 10 9 9 9 9 9 9 10 20 9 9 9 9 9 9 9 9 9 9 9 10 21 9 9 9 9 10 9 9 9 9 9 9 10 22 9 9 10 9 10 9 9 9 9 9 9 10 23 9 9 10 9 9 9 9 9 9 9 10 10 24 9 9 9 9 9 9 9 9 9 9 9 9 25 9 9 9 9 9 9 9 9 9 9 9 9 26 9 9 9 9 9 9 9 9 9 9 9 9 27 9 9 9 9 9 9 9 9 9 9 9 9 28 9 9 9 9 9 9 9 9 9 9 9 9 29 9 9 9 9 9 9 9 9 10 10 9 9 --9 9 9 9 9 9 9 30 9 9 10 9 --10 9 --9 --9 --9 9 --31 9 -----------------------------------------------------------------------------MEAN 9 9 9 9 9 9 9 9 9 9 9 10 MAX 9 9 10 10 10 10 10 10 10 10 10 10 MIN 9 9 9 9 9 9 9 9 9 9 9 9 -----------------------------------------------------------------------------WTR YR 2024 MEAN 9 MAX 10 MIN 9 FCDMC Annual Surface Water Report, Water Year 2024 Page 623 Phoenix Zoo Dam #5, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 8.6 8.6 8.6 8.6 8.6 8.6 8.7 8.5 8.6 8.6 8.6 8.6 2 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.7 8.7 3 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.7 4 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 --8.6 8.7 5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 --8.6 8.7 6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 --8.6 8.7 7 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 --8.6 8.7 8 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.7 9 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 10 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 11 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 12 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 13 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 14 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 15 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 16 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 17 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.6 8.6 8.7 18 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 19 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.6 8.6 8.7 20 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 21 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.6 8.5 8.7 22 8.6 8.6 8.7 8.6 8.7 8.6 8.6 8.6 8.5 8.6 8.6 8.7 23 8.6 8.6 8.7 8.6 8.6 8.6 8.5 8.6 8.5 8.6 8.7 8.7 24 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 25 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 26 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 27 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 28 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 8.6 29 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.7 8.7 8.6 8.6 30 8.6 8.6 8.7 8.6 --8.6 8.6 8.5 8.6 8.6 8.5 8.6 31 8.6 --8.7 8.6 --8.6 --8.6 --8.6 8.6 -------------------------------------------------------------------------------MEAN 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 MAX 8.6 8.6 8.7 8.7 8.7 8.7 8.7 8.7 8.7 8.7 8.8 8.8 MIN 8.5 8.6 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.6 8.5 8.6 -----------------------------------------------------------------------------WTR YR 2024 MEAN 8.61 MAX 8.84 MIN 8.47 FCDMC Annual Surface Water Report, Water Year 2024 Page 624 Picacho Wash, ID #74207 Site Data LOCATION Located near milepost 10 on SR74 DRAINAGE AREA 17.8 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S28 T6N R2W LATITUDE N 33° 50’ 08.3” | +33.83563 LONGITUDE W 112° 28’ 32.1” | -112.47557 ARIZONA STATE PLANE E 530364 | N 1032224 USGS QUAD SHEET Hieroglyphic Mountains SW 7.5-Minute STREAMGAGE INSTALLATION DATE 04/11/2012 – WY 2012 PERIOD OF AVAILABLE DATA RECORD 04/11/2012 – Current LENGTH OF AVAILABLE DATA RECORD 12.47 Years | 4,556 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.90 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,961.783 feet NAVD88 POINT OF ZERO FLOW -0.1 feet EXTREME FOR PERIOD OF RECORD 6,167 cfs | 4.41 feet | 09/23/2019 FCDMC Annual Surface Water Report, Water Year 2024 Page 625 Watershed Map Picacho Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 626 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 627 Peak Discharge (cfs) Picacho Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 628 Pima Canyon Wash, ID #68707 Site Data LOCATION Located near 48th Street and Guadalupe Road DRAINAGE AREA 1.51 mi2 STREAM TYPE Culvert JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S05 T1S R4E LATITUDE N 33° 21’ 54.1” | +33.36504 LONGITUDE W 111° 58’ 30.4” | -111.97512 ARIZONA STATE PLANE E 682150 | N 860330 USGS QUAD SHEET Guadalupe 7.5-Minute STREAMGAGE INSTALLATION DATE 04/15/2014 – WY 2014 PERIOD OF AVAILABLE DATA RECORD 04/15/2014 – Current LENGTH OF AVAILABLE DATA RECORD 10.46 Years | 3,822 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.69 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,302.896 feet NAVD88 POINT OF ZERO FLOW 1.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 345 cfs | 6.52 feet Gage Height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 629 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 630 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 631 Peak Discharge (cfs) Pima Canyon Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 --18 --19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 632 Powder House Wash, ID #52507 Site Data LOCATION In Wickenburg, north of Constellation Road DRAINAGE AREA 1.84 mi2 STREAM TYPE Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S06 T7N R4W LATITUDE N 33° 58’ 51.0” | +33.98083 LONGITUDE W 112° 43’ 02.3” | -112.71732 ARIZONA STATE PLANE E 457292 | N 1085363 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 05/18/1995 – WY 1995 PERIOD OF AVAILABLE DATA RECORD 05/18/1995 – Current LENGTH OF AVAILABLE DATA RECORD 29.37 Years | 10,729 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.50 feet Gage Height STAFF GAGES None CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 2,133.590 feet NAVD88 POINT OF ZERO FLOW -0.6 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,312 cfs | 2.42 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2024 Page 633 Watershed Map Powder House Wash - water year peaks 2,500 Discharge (cfs) 2,000 1,500 1,000 500 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 634 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- 300 --- 1,300 1,900 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 635 Powder House Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 0 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2024 Page 636 Powerline Floodway, ID #37507 Site Data LOCATION Located near Ellsworth and Ray Roads DRAINAGE AREA Not Determined STREAM TYPE Engineered Channel JURISDICTION Mesa, Arizona WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S28 T1S R7E LATITUDE N 33° 19’ 16.4” | +33.32123 LONGITUDE W 111° 38’ 09.9” | -111.63609 ARIZONA STATE PLANE E 785714 | N 844518 USGS QUAD SHEET Higley 7.5-Minute STREAMGAGE INSTALLATION DATE 02/13/2008 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 02/13/2008 – Current LENGTH OF AVAILABLE DATA RECORD 16.63 Years | 6,075 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES One CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,381.654 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,077 cfs | 4.70 feet | 09/04/2012 FCDMC Annual Surface Water Report, Water Year 2024 Page 637 Watershed Map Powerline Floodway - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 638 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/02/2024 0.9 53 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 639 Powerline Floodway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 18 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 18 0 0 0 0 0 0 0 MEAN 0 0 0 0 1 0 0 0 0 0 0 0 MAX 0 0 0 0 53 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 35 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 18 MEAN 0 MAX 53 MIN 0 AC_FT 35 FCDMC Annual Surface Water Report, Water Year 2024 Page 640 Powerline FRS, ID #36807 Site Data LOCATION Located south of Apache Junction east of Ironwood Road DRAINAGE AREA 46.8 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Pinal County, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S09 T1S R8E LATITUDE N 33° 21’ 16.7” | +33.35463 LONGITUDE W 111° 32’ 45.5” | -111.54598 ARIZONA STATE PLANE E 813178 | N 856755 USGS QUAD SHEET Desert Well 7.5-Minute STREAMGAGE INSTALLATION DATE 12/02/1992 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 12/02/1992 – Current LENGTH OF AVAILABLE DATA RECORD 31.83 Years | 11,626 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 5 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,563.822 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 21.1 feet Gage Height TOP OF DAM ELEVATION 25.6 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 641 Watershed Map Powerline FRS - water year peaks 1,200 Volume (acre-feet) 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 642 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 643 Peak Volume (ac-ft) Percent Spillway Capacity Powerline FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 7 8 9 10 11 12 13 14 15 16 --17 18 19 --20 --21 --22 --23 24 25 --26 27 28 29 ----30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 644 Powerline FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 7 8 9 10 11 12 13 14 15 16 --17 18 19 --20 --21 --22 --23 24 25 --26 27 28 29 ----30 ----------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 645 Powerline FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 --0.2 0.2 0.0 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.0 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.20 MAX 0.20 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 646 Price Drain @ Loop 202, ID #31507 Site Data LOCATION Located within the Loop 101 / Loop 202 Interchange DRAINAGE AREA Not Determined STREAM TYPE Engineered Channel JURISDICTION Mesa WATERSHED Lower East Maricopa Floodway SECTION/TOWNSHIP/RANGE S18 T1N R5E LATITUDE N 33° 26’ 03.8” | +33.43440 LONGITUDE W 111° 53’ 25.0” | -111.89028 ARIZONA STATE PLANE E 708043 | N 885566 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 02/18/2001 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 02/18/2001 – Current LENGTH OF AVAILABLE DATA RECORD 23.62 Years | 8,626 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,158.136 feet NAVD 88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 993 cfs | 8.50 feet | 03/04/2004 FCDMC Annual Surface Water Report, Water Year 2024 Page 647 Location Map (watershed undetermined) Price Drain - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 648 2020 2025 WY2024 Events Date of Peak 11/20/2023 11/25/2023 12/01/2023 12/23/2023 01/23/2024 02/02/2024 02/08/2024 03/15/2024 03/24/2024 04/01/2024 07/26/2024 08/18/2024 Peak Gage Height (feet) 2.27 1.27 0.70 2.37 2.89 3.19 2.32 3.99 1.75 2.60 1.35 1.70 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 649 Peak Discharge (cfs) 79 24 11 86 126 152 45 136 31 52 22 30 Price Drain, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 8 3 7 4 4 4 26 7 7 4 4 8 2 9 3 2 3 38 3 6 4 8 3 2 8 3 9 5 2 3 10 3 6 9 7 3 3 5 4 11 8 2 3 4 3 3 5 8 2 2 9 5 9 4 2 3 4 3 7 7 11 2 2 6 6 8 4 2 3 5 7 7 6 12 2 2 13 7 9 7 2 3 27 6 4 6 11 2 6 11 8 10 3 2 4 20 17 5 8 6 3 4 12 9 8 8 3 4 16 5 4 5 5 2 8 6 10 8 8 3 4 25 4 8 7 5 2 5 4 11 10 9 3 4 12 5 8 4 7 2 11 3 12 10 11 3 4 12 6 10 4 9 2 7 5 13 10 8 4 3 8 6 8 3 9 4 4 7 14 9 6 3 4 4 5 9 4 10 7 8 7 15 9 10 3 8 4 23 8 7 8 9 6 10 16 7 9 3 8 5 11 7 7 9 8 6 9 17 5 11 3 7 7 4 9 4 8 6 10 7 18 5 16 4 6 7 7 6 6 8 4 19 7 19 5 15 3 6 6 7 7 3 8 3 8 7 20 4 22 3 6 6 7 9 5 10 2 8 14 21 10 3 4 9 10 14 8 7 5 2 12 12 22 3 2 27 7 9 10 7 8 4 3 13 9 23 3 2 38 46 10 3 6 5 2 2 13 7 24 4 2 18 18 5 20 8 3 3 3 12 6 25 5 10 13 10 6 8 5 2 5 9 9 7 26 5 2 5 7 5 6 2 3 6 19 9 5 27 5 2 5 4 4 4 3 2 3 8 8 8 28 5 2 4 4 4 3 4 4 3 6 10 11 29 4 2 4 3 5 5 6 8 3 7 8 7 --3 4 6 3 12 8 7 30 3 2 3 3 --4 3 --16 --5 --8 7 --31 3 -----------------------------------------------------------------------------TOTAL 215 197 184 203 285 231 211 163 202 153 233 239 MEAN 7 7 6 7 10 7 7 5 7 5 8 8 MAX 14 43 46 67 82 136 52 14 16 29 30 20 MIN 2 2 2 2 2 2 2 2 2 2 2 2 AC_FT 426 392 366 402 566 457 418 322 402 303 461 475 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2516 MEAN 7 MAX 136 MIN 2 AC_FT 4990 NOTE: There is almost always a base flow at this location, of undetermined origin. FCDMC Annual Surface Water Report, Water Year 2024 Page 650 Prickly Pear Wash, ID #8107 Site Data LOCATION Located at John Teets Park near 43rd Way and Ramuda Drive DRAINAGE AREA 1.38 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Upper Indian Bend Wash SECTION/TOWNSHIP/RANGE S06 T4N R4E LATITUDE N 33° 43’ 15.9” | +33.72107 LONGITUDE W 111° 59’ 24.0” | -111.99001 ARIZONA STATE PLANE E 677700 | N 989880 USGS QUAD SHEET Curry’s Corner 7.5-Minute STREAMGAGE INSTALLATION DATE 06/01/2017 – WY 2017 PERIOD OF AVAILABLE DATA RECORD 06/01/2017 – Current LENGTH OF AVAILABLE DATA RECORD 7.33 Years | 2,679 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.70 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,730.253 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD No Events Recorded FCDMC Annual Surface Water Report, Water Year 2024 Page 651 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 652 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event There was no runoff events recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 653 Peak Discharge (cfs) Prickly Pear Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 654 Queen Creek at CAP, ID #38007 Site Data LOCATION Located in Pinal County at the CAP crossing and the Sonoqui Dike DRAINAGE AREA 200 mi2 STREAM TYPE Dike across natural stream JURISDICTION Pinal County, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S26 T2S R8E LATITUDE N 33° 13’ 55.8” | +33.23216 LONGITUDE W 111° 30’ 11.3” | -111.50314 ARIZONA STATE PLANE E 826447 | N 812254 USGS QUAD SHEET Magma 7.5-Minute STREAMGAGE INSTALLATION DATE 01/14/1999 – WY 1999 PERIOD OF AVAILABLE DATA RECORD 01/14/1999 – Current LENGTH OF AVAILABLE DATA RECORD 25.71 Years | 9,392 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,569.003 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,034 cfs | 10.15 feet | 02/12/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 655 Watershed Map Queen Creek at CAP - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 656 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/11/2024 1.10 0 Hydrograph of peak WY 2024 flow event, 02/11/2024 * Discharge is not measured until gage height is over 2.6 ft FCDMC Annual Surface Water Report, Water Year 2024 Page 657 Queen Creek at CAP, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 658 Queen Creek at Rittenhouse Road, ID #37707 Site Data LOCATION At the Queen Creek crossing of Rittenhouse Road DRAINAGE AREA 236 mi2 STREAM TYPE Box Culvert on natural stream JURISDICTION Queen Creek, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S25 T2S R7E LATITUDE N 33° 13’ 48.9” | +33.23025 LONGITUDE W 111° 35’ 39.4” | -111.59428 ARIZONA STATE PLANE E 798582 | N 811460 USGS QUAD SHEET Sacaton NE 7.5-Minute STREAMGAGE INSTALLATION DATE 09/14/1993 – WY 1993 PERIOD OF AVAILABLE DATA RECORD 09/14/1993 – Current LENGTH OF AVAILABLE DATA RECORD 31.05 Years | 11,340 Days GAPS IN RECORD 05/28/2014 – 06/29/2014; 09/19/2019 – 07/21/2020 STAGE GAGE TYPE None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES One CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,438.00 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 575 cfs | 2.25 feet | 01/05/1995 FCDMC Annual Surface Water Report, Water Year 2024 Page 659 Watershed Map Queen Creek at Rittenhouse Road - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 660 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 661 Peak Discharge (cfs) Queen Creek at Rittenhouse Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 662 Rainbow Wash, ID #42807 Site Data LOCATION Located on SR85 about 10 miles south of Buckeye DRAINAGE AREA 18.3 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Gillespie SECTION/TOWNSHIP/RANGE S23 T2S R4W LATITUDE N 33° 14’ 08.0” | +33.23556 LONGITUDE W 112° 38’ 21.0” | -112.63917 ARIZONA STATE PLANE E 479082 | N 813998 USGS QUAD SHEET Cotton Center NW 7.5-Minute STREAMGAGE INSTALLATION DATE 11/06/2000 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 11/06/2000 – Current LENGTH OF AVAILABLE DATA RECORD 23.90 Years | 8,730 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.07 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 900.06 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 7,500 cfs | 8.20 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 663 Watershed Map Rainbow Wash - water year peaks 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 664 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 7,124 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 665 Rainbow Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 666 Rawhide Wash, ID #61007 Site Data LOCATION On Dynamite Boulevard about ¼ mile west of Pima Road DRAINAGE AREA 8.9 mi2 STREAM TYPE Natural stream JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S36 T5N R4E LATITUDE N 33° 44’ 28.1” | +33.74115 LONGITUDE W 111° 53’ 53.3” | -111.89814 ARIZONA STATE PLANE E 705634 | N 997198 USGS QUAD SHEET Curry’s Corner 7.5-Minute STREAMGAGE INSTALLATION DATE 07/27/1999 – WY 1999 PERIOD OF AVAILABLE DATA RECORD 07/27/1999 – Current LENGTH OF AVAILABLE DATA RECORD 25.18 Years | 9,198 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.52 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,220.142 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 446 cfs | 2.07 feet | 09/09/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 667 Watershed Map Discharge (cfs) Rawhide Wash - water year peaks 500 450 400 350 300 250 200 150 100 50 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 668 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 669 Peak Discharge (cfs) Rawhide Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 ----15 16 17 --18 19 20 21 22 23 --24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 670 Reata Pass Dam, ID #61207 Site Data LOCATION Located south of Dynamite Boulevard and east of Alma School Parkway DRAINAGE AREA 1.15 mi2 JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S33 T5N R5E LATITUDE N 33° 44’ 04.1” | +33.73446 LONGITUDE W 111° 50’ 37.0” | -111.84362 ARIZONA STATE PLANE E 722200 | N 994776 USGS QUAD SHEET McDowell Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 10/02/2001 – WY 2002 PERIOD OF AVAILABLE DATA RECORD 10/02/2001 – Current LENGTH OF AVAILABLE DATA RECORD 23.00 Years | 8,400 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,590.50 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 16.50 feet Gage Height TOP OF DAM ELEVATION 19.30 feet Gage Height MAXIMUM RECORDED IMPOUNDMENT 8.51 ft. | 21.0 ac-ft | 42.4 % full | 08/30/1996 FCDMC Annual Surface Water Report, Water Year 2024 Page 671 Watershed Map Reata Pass Dam - water year peaks Volume (acre-feet) 25 20 15 10 5 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 672 2015 2020 2025 WY2024 Events Date of Peak 02/08/2024 04/01/2024 Peak Gage Height (feet) 0.74 1.14 Peak Volume (ac-ft) 0.0 0.0 Hydrograph of peak 2024 impoundment event, 04/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 673 Percent Spillway Capacity 0.4% 0.6% Reata Pass Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 2 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 2 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 674 Reata Pass Dam, volume data Volume, in Acre-Feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 675 Reata Pass Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.2 0.1 0.2 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.2 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.3 0.3 0.5 0.7 0.6 1.1 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.15 MAX 1.14 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2024 Page 676 Reata Pass Wash, ID #60007 Site Data LOCATION Located on Pinnacle Peak Road about 1.6 miles east of Pima Road DRAINAGE AREA 8.0 mi2 STREAM TYPE Natural stream JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S17 T4N R5E LATITUDE N 33° 41’ 52.9” | +33.69804 LONGITUDE W 111° 51’ 50.6” | -111.86408 ARIZONA STATE PLANE E 715998 | N 981513 USGS QUAD SHEET McDowell Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 05/15/2001 – WY 2001 PERIOD OF AVAILABLE DATA RECORD 05/15/2001 – Current LENGTH OF AVAILABLE DATA RECORD 23.38 Years | 8,540 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,172.777 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,197 cfs | 2.08 feet | 09/08/2014 EXTREME OUTSIDE PERIOD OF RECORD 1,780 cfs | 08/29/1996 FCDMC Annual Surface Water Report, Water Year 2024 Page 677 Watershed Map Reata Pass Wash - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 678 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 679 Peak Discharge (cfs) Reata Pass Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 680 Red Mountain Freeway Levee at McDowell Road, ID #80007 Site Data LOCATION Located at McDowell Road and the Loop 202 DRAINAGE AREA 13.6 mi2 at outlet gage STREAM TYPE Engineered Channel / Levee / Dam JURISDICTION Mesa, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S06 T1N R7E LATITUDE N 33° 27’ 57.4” | +33.46594 LONGITUDE W 111° 40’ 42.0” | -111.67834 ARIZONA STATE PLANE E 772695 | N 897129 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 06/19/2008 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 06/19/2008 – Current LENGTH OF AVAILABLE DATA RECORD 16.28 Years | 5,948 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,569.19 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE SPOOK HILL PRINCIPAL OUTLET ELEVATION -1.09 feet Gage Height SPOOK HILL UNGATED PRINCIPAL OUTLET INLET ELEVATION 8.31 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION UPSTREAM OF McDOWELL ROAD 12.91 feet Gage Height SPOOK HILL SPILLWAY ELEVATION 14.71 feet Gage Height SPOOK HILL TOP OF DAM ELEVATION 24.21 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 681 Watershed Map Red Mountain Freeway Levee at McDowell Road - water year peaks 400 Volume (acre-feet) 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 682 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/24/2024 02/02/2024 02/11/2024 Peak Gage Height (feet) 1.85 0.63 1.41 1.85 Peak Volume (ac-ft) 15.1 1.6 8.3 15.1 Hydrograph of peak 2024 impoundment event, 02/11/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 683 Percent Spillway Capacity 0.3% 0.0% 0.2% 0.3% Red Mountain Freeway Levee at McDowell Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 15 3 2 30 6 8 3 32 4 30 5 11 6 7 4 8 17 9 29 10 30 11 35 12 30 13 9 14 15 16 17 18 19 20 21 22 3 23 32 15 24 34 11 25 33 26 19 27 1 28 29 30 ------5 ------31 -----------------------------------------------------------------------------TOTAL 0 0 122 26 256 5 21 0 0 0 0 11 MEAN 0 0 4 1 9 0 1 0 0 0 0 0 MAX 0 0 35 27 35 12 17 0 0 0 0 17 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 242 51 509 10 41 0 0 0 0 22 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 441 MEAN 1 MAX 35 MIN 0 AC_FT 874 FCDMC Annual Surface Water Report, Water Year 2024 Page 684 Red Mountain Freeway Levee at McDowell Road, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 6 3 6 4 4 5 1 6 7 8 1 9 3 10 4 11 14 12 6 13 14 15 16 17 18 19 20 21 22 23 10 1 24 13 1 25 9 26 3 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 1 0 2 0 0 0 0 0 0 0 MAX 0 0 15 2 15 1 1 0 0 0 0 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 15 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 685 Red Mountain Freeway Levee at McDowell Road, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.1 2 0.0 0.0 0.0 0.0 1.2 0.0 0.2 0.0 0.0 0.0 0.0 0.2 3 0.0 0.0 0.0 0.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 1.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 1.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.1 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.2 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 1.9 0.6 1.9 0.3 0.4 0.0 0.0 0.0 0.0 0.4 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.04 MAX 1.85 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 686 Red Mountain Freeway Levee at McKellips Road , ID #79807 Site Data LOCATION Located at McKellips Road and the Loop 202 DRAINAGE AREA 13.6 mi2 at outlet gage STREAM TYPE Engineered Channel / Levee / Dam JURISDICTION Mesa, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S07 T1N R7E LATITUDE N 33° 27’ 04.7” | +33.45131 LONGITUDE W 111° 40’ 03.4” | -111.66761 ARIZONA STATE PLANE E 775920 | N 891753 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 06/19/2008 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 06/19/2008 – Current LENGTH OF AVAILABLE DATA RECORD 16.28 Years | 5,948 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.31 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,570.22 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE SPOOK HILL PRINCIPAL OUTLET ELEVATION -2.12 feet Gage Height SPOOK HILL UNGATED PRINCIPAL OUTLET INLET ELEVATION 7.28 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION UPSTREAM OF McKELLIPS ROAD 12.78 feet Gage Height SPOOK HILL SPILLWAY ELEVATION 13.68 feet Gage Height SPOOK HILL TOP OF DAM ELEVATION 23.18 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 687 Watershed Map Red Mountain Freeway Levee at McKellips Road - water year peaks 400 Volume (acre-feet) 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 688 2020 2025 WY2024 Events Date of Peak 12/23/2023 02/02/2024 02/11/2024 Peak Gage Height (feet) 1.56 1.01 1.23 Peak Volume (ac-ft) 28.8 17.3 21.9 Hydrograph of peak 2024 impoundment event, 12/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 689 Percent Spillway Capacity 0.5% 0.3% 0.4% Red Mountain Freeway Levee at McKellips Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 4 3 4 5 6 7 8 9 10 1 11 14 12 2 13 14 15 16 17 18 19 20 21 22 23 19 24 4 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 24 0 21 0 0 0 0 0 0 0 MEAN 0 0 1 0 1 0 0 0 0 0 0 0 MAX 0 0 38 0 22 0 0 0 0 0 0 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 47 0 42 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 44 MEAN 0 MAX 38 MIN 0 AC_FT 88 FCDMC Annual Surface Water Report, Water Year 2024 Page 690 Red Mountain Freeway Levee at McKellips Road, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 15 3 6 4 5 6 7 8 9 10 2 11 20 12 8 13 14 15 16 17 18 19 20 21 22 1 23 17 24 15 25 8 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 1 0 2 0 0 0 0 0 0 0 MAX 0 0 29 0 22 0 0 0 0 0 0 11 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 29 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 691 Red Mountain Freeway Levee at McKellips Road, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 1.1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 1.1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 1.6 0.3 1.2 0.3 0.3 0.3 0.3 0.3 0.3 0.7 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.32 MAX 1.56 MIN 0.31 FCDMC Annual Surface Water Report, Water Year 2024 Page 692 Red Mountain Freeway Levee at Brown Road, ID #81507 Site Data STATUS Active LOCATION Located at Brown Road and SR 202L DRAINAGE AREA 13.6 mi2 at outlet gage STREAM TYPE Engineered Channel / Levee / Dam JURISDICTION Mesa, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S16 T1N R7E LATITUDE N 33° 26’ 11.9” | +33.43664 LONGITUDE W 111° 38’ 52.8” | -111.64799 ARIZONA STATE PLANE E 781957 | N 886500 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 06/04/2008 – WY 2008 PERIOD OF AVAILABLE DATA RECORD 06/04/2008 – Current LENGTH OF AVAILABLE DATA RECORD 16.33 Years | 5,963 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.32 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,571.53 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPOOK HILL DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE SPOOK HILL PRINCIPAL OUTLET ELEVATION -3.43 feet Gage Height SPOOK HILL UNGATED PRINCIPAL OUTLET INLET ELEVATION 5.97 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION UPSTREAM OF BROWN ROAD 13.47 feet Gage Height SPOOK HILL SPILLWAY ELEVATION 12.37 feet Gage Height SPOOK HILL TOP OF DAM ELEVATION 21.88 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 693 Watershed Map Volume (acre-feet) Red Mountain Freeway Levee at Brown Road - water year peaks 500 450 400 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 694 2020 2025 WY2024 Events Date of Peak 12/07/2023 12/23/2023 02/02/2024 02/10/2024 Peak Gage Height (feet) 0.66 0.94 1.19 1.54 Peak Volume (ac-ft) 45.2 54.6 61.8 77.6 Hydrograph of peak 2024 impoundment event, 02/10/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 695 Percent Spillway Capacity 1.0% 1.4% 1.6% 2.0% Red Mountain Freeway Levee at Brown Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 41 2 42 21 3 32 4 21 5 26 20 6 41 10 7 31 41 8 42 9 41 10 42 11 42 12 32 13 21 14 15 16 17 18 10 19 31 20 30 21 22 10 23 43 32 24 42 41 30 25 31 32 32 26 20 20 30 27 20 28 29 30 --31 ----24 -----------------------------------------------------------------------------------TOTAL 0 0 244 125 388 208 62 0 0 0 0 0 MEAN 0 0 8 4 13 7 2 0 0 0 0 0 MAX 0 0 44 43 46 42 42 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 485 249 769 413 122 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 1027 MEAN 3 MAX 46 MIN 0 AC_FT 2037 FCDMC Annual Surface Water Report, Water Year 2024 Page 696 Red Mountain Freeway Levee at Brown Road, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 37 2 46 20 3 29 4 19 5 24 18 6 39 8 7 30 40 8 43 9 39 10 46 11 43 12 29 13 19 14 15 16 17 18 10 19 28 20 27 21 22 10 23 46 33 24 40 38 26 25 28 28 29 26 19 19 27 27 18 28 29 30 ------24 ------31 -----------------------------------------------------------------------------MEAN 0 0 8 4 13 6 2 0 0 0 0 0 MAX 0 0 55 46 78 43 42 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 3 MAX 78 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 697 Red Mountain Freeway Levee at Brown Road, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.7 0.3 0.4 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.5 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.7 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.5 0.5 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.4 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.5 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.9 0.7 1.5 0.6 0.6 0.3 0.3 0.3 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.33 MAX 1.54 MIN 0.32 FCDMC Annual Surface Water Report, Water Year 2024 Page 698 Rittenhouse FRS, ID #37207 Site Data LOCATION East of town of Queen Creek in Pinal County DRAINAGE AREA 47.3 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Pinal County WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S02 T2S R8E LATITUDE N 33° 17’ 20.3” | +33.28896 LONGITUDE W 111° 30’ 23.7” | -111.50659 ARIZONA STATE PLANE E 825307 | N 832913 USGS QUAD SHEET Desert Well 7.5-Minute STREAMGAGE INSTALLATION DATE 09/27/1988 – WY 1988 PERIOD OF AVAILABLE DATA RECORD 09/27/1988 – Current LENGTH OF AVAILABLE DATA RECORD 36.01 Years | 13,153 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 4 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,578.97 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 19.4 feet Gage Height TOP OF DAM ELEVATION 24.4 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 699 Watershed Map Volume (acre-feet) Rittenhouse FRS - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 700 2010 2015 2020 2025 WY2024 Events Date of Peak 02/02/2024 02/11/2024 Peak Gage Height (feet) 0.87 1.30 Peak Volume (ac-ft) 0.9 2.2 Hydrograph of peak 2024 impoundment event, 02/11/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 701 Percent Spillway Capacity 0.0% 0.0% Rittenhouse FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 1 --3 --4 ------5 --6 7 8 --9 10 11 2 12 13 14 15 16 17 --18 19 20 --21 --22 --23 24 25 --26 27 --28 29 ----30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 3 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 10 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 6 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 3 MEAN 0 MAX 10 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2024 Page 702 Rittenhouse FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 7 8 --9 10 11 12 13 14 15 16 17 --18 19 20 --21 --22 --23 24 25 --26 27 --28 29 ----30 ----------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 2 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 2 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 703 Rittenhouse FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 --0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 --0.2 0.2 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.0 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.0 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 1.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.25 MAX 1.30 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2024 Page 704 Roeser Road at 23rd Avenue Basin, ID #66807 Site Data LOCATION Located on the basin at the northeast corner of Roeser Rd and 23rd Avenue DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S25 T1N R2E LATITUDE N 33° 23’ 58.9” | +33.39968 LONGITUDE W 112° 09’ 02.5” | -112.15070 ARIZONA STATE PLANE E 641727 | N 873000 USGS QUAD SHEET Phoenix 7.5-Minute STREAMGAGE INSTALLATION DATE 10/01/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/01/2015 – Current LENGTH OF AVAILABLE DATA RECORD 9.00 Years | 3,288 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,045.755 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 12.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 705 Watershed Map Roeser Road at 23rd Avenue Basin - water year peaks 120 Volume (acre-feet) 100 80 60 40 20 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 706 2025 WY2024 Events Date of Peak 11/18/2023 12/01/2023 12/22/2023 01/23/2024 02/01/2024 02/06/2024 03/08/2024 03/24/2024 03/31/2024 07/14/2024 07/24/2024 08/06/2024 08/07/2024 Peak Gage Height (feet) 1.21 1.39 1.34 1.96 1.49 1.31 1.18 0.85 1.91 0.97 1.62 1.49 1.21 Peak Volume (ac-ft) 13.8 15.8 15.2 22.2 16.9 14.9 13.4 9.7 21.7 11.1 18.4 16.9 13.8 Hydrograph of peak 2024 impoundment event, 01/23/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 707 Percent Spillway Capacity 10.1% 11.6% 11.2% 16.3% 12.4% 10.9% 9.8% 7.1% 15.9% 8.1% 13.5% 12.4% 10.1% Roeser Road at 23rd Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 1 2 2 1 3 4 5 6 7 1 1 8 9 10 1 11 --12 13 14 15 16 17 18 1 1 19 20 21 22 2 1 23 2 24 1 25 26 27 28 29 30 ------2 ------31 -----------------------------------------------------------------------------TOTAL 0 1 3 3 4 3 2 0 0 1 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 7 9 15 10 15 12 0 4 11 10 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 2 7 6 8 6 4 0 1 3 3 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 20 MEAN 0 MAX 15 MIN 0 AC_FT 39 NOTE: There is currently no discharge rating at this location. FCDMC Annual Surface Water Report, Water Year 2024 Page 708 Roeser Road at 23rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 4 2 2 3 4 5 6 1 1 7 3 2 1 8 9 10 1 11 --12 13 14 1 15 1 16 17 18 2 1 19 20 21 22 5 1 1 23 5 24 1 1 25 1 1 26 27 28 29 30 ------3 ------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 14 16 22 17 22 19 0 9 18 17 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 22 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 709 Roeser Road at 23rd Avenue Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.3 0.2 0.3 0.2 0.5 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.3 0.2 7 0.2 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.2 0.2 0.3 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.3 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.5 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.3 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.4 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 1.2 1.4 2.0 1.5 1.9 1.7 0.2 0.8 1.6 1.5 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.24 MAX 1.96 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2024 Page 710 Saddleback FRS, ID #25207 Site Data LOCATION Located south of I-10 along Courthouse Road DRAINAGE AREA 29.6 mi2 (excludes area behind Harquahala FRS) STREAM TYPE Dam of natural drainage JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S34 T2N R8W LATITUDE N 33° 27’ 59.8” | +33.46660 LONGITUDE W 113° 04’ 21.3” | -113.07258 ARIZONA STATE PLANE E 347488 | N 899262 USGS QUAD SHEET Saddle Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 12/16/1988 – WY 1989 PERIOD OF AVAILABLE DATA RECORD 12/16/1988 – Current LENGTH OF AVAILABLE DATA RECORD 35.79 Years | 13,073 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,178.93 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION No Spillway TOP OF DAM ELEVATION 16.1 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 711 Watershed Map Saddleback FRS - water year peaks 120 Volume (acre-feet) 100 80 60 40 20 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 712 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 713 Percent Total Capacity Saddleback FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 714 Saddleback FRS, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 715 Saddleback FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.30 MAX 0.30 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2024 Page 716 Salt River below Granite Reef Dam, ID #75307 Site Data LOCATION Located about ½ mile downstream from Granite Reef Diversion structure DRAINAGE AREA 12,548 mi2 STREAM TYPE Natural Stream JURISDICTION Salt River Pima-Maricopa Indian Community, Arizona WATERSHED Lower Verde / Evergreen SECTION/TOWNSHIP/RANGE S13 T2N R6E LATITUDE N 33° 30’ 53.5” | +33.5147 LONGITUDE W 111° 41’ 56.4” | -111.6990 ARIZONA STATE PLANE E 766347 | N 914864 USGS QUAD SHEET Granite Reef Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 04/02/2012 – WY 2012 PERIOD OF AVAILABLE DATA RECORD 04/02/2012 – Current LENGTH OF AVAILABLE DATA RECORD 12.50 Years | 4,565 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 4.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,276.00 feet NAVD88 POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 32,459 cfs | 19.25 feet | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 717 Watershed Map Salt River below Granite Reef - water year peaks 40,000 35,000 Discharge (cfs) 30,000 25,000 20,000 15,000 10,000 5,000 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 718 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency Source: Analysis of Modified Roosevelt Dam 2-year 5-year 10-year 20-year 50-year 100-year --- 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 719 Salt River below Granite Reef Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 720 Salt River at Val Vista Drive, ID #39507 Site Data LOCATION Located north of SR202L and west of Val Vista Drive DRAINAGE AREA 12,580 mi2 STREAM TYPE Natural Stream JURISDICTION Mesa, Arizona WATERSHED Lower EMF / Evergreen SECTION/TOWNSHIP/RANGE S29 T2N R6E LATITUDE N 33° 29’ 03.3” | +33.48426 LONGITUDE W 111° 45’ 44.1” | -111.76225 ARIZONA STATE PLANE E 686374 | N 885428 USGS QUAD SHEET Red Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 04/14/2011 – WY 2011 PERIOD OF AVAILABLE DATA RECORD 04/14/2011 – Current LENGTH OF AVAILABLE DATA RECORD 13.47 Years | 4,919 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.40 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,240.00 feet NAVD88 POINT OF ZERO FLOW 0.0 EXTREME FOR PERIOD OF RECORD 32,333 cfs | 14.13 feet | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 721 Watershed Map Salt River at Val Vista Drive - water year peaks 40,000 35,000 Discharge (cfs) 30,000 25,000 20,000 15,000 10,000 5,000 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 722 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency Source: Analysis of Modified Roosevelt Dam 2-year 5-year 10-year 20-year 50-year 100-year --- 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 723 Salt River at Val Vista Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 724 Salt River at Priest Drive, ID #67307 Site Data LOCATION Located on the Priest Drive Bridge DRAINAGE AREA 12,914 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Tempe, Arizona WATERSHED Lower ACDC / South Mountain SECTION/TOWNSHIP/RANGE S17 T1N R4E LATITUDE N 33° 26’ 02.4” | +33.43401 LONGITUDE W 111° 57’ 40.7” | -111.96132 ARIZONA STATE PLANE E 686374 | N 885428 USGS QUAD SHEET Tempe 7.5-Minute STREAMGAGE INSTALLATION DATE 12/07/1993 – WY 1994 PERIOD OF AVAILABLE DATA RECORD 12/07/1993 – Current LENGTH OF AVAILABLE DATA RECORD 30.82 Years | 11,256 Days GAPS IN RECORD None STAGE GAGE TYPE Non-Submersible Pressure Transducer STAGE GAGE ELEVATION 2.60 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,121.809 feet NAVD88 POINT OF ZERO FLOW 2.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 78,850 cfs | 12.57 feet | 02/16/1995 FCDMC Annual Surface Water Report, Water Year 2024 Page 725 Watershed Map Salt River at Priest Drive - water year peaks 90,000 80,000 Discharge (cfs) 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 726 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height 10/11/2023 3.52 10/24/2023 2.99 11/12/2023 3.15 *might be influenced by Tempe Town Lake upstream Peak Discharge (cfs) 632 43 102 Hydrograph of peak WY 2024 flow event, 10/11/2023 Flood Flow Frequency Flood Flow Frequency Source: Table 2-4 from Study from Modified Roosevelt Dam 2-year 5-year 10-year 20-year 50-year 100-year --- 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 727 Salt River at Priest Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 7 3 3 6 4 5 5 6 ----6 6 --7 5 7 --8 4 7 9 9 5 --10 10 12 --11 128 31 --12 7 34 --13 8 ----14 8 --15 7 --16 12 17 13 --18 7 --19 4 --20 --21 ----22 --23 29 --24 33 25 22 --26 15 --27 6 --28 --29 30 12 --31 21 ---------------------------------------------------------------------------------------TOTAL 366 136 0 0 0 0 0 0 0 0 0 0 MEAN 12 5 0 0 0 0 0 0 0 0 0 0 MAX 632 102 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 725 269 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 501 MEAN 1 MAX 632 MIN 0 AC_FT 995 See USGS Water-Data Report for official data for this site. FCDMC Annual Surface Water Report, Water Year 2024 Page 728 Salt River at 7th Avenue, ID #68007 Site Data LOCATION Located on 7th Avenue Bridge DRAINAGE AREA 12,956 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC / South Mountain SECTION/TOWNSHIP/RANGE S19 T1N R3E LATITUDE N 33° 25’ 03.1” | +33.41752 LONGITUDE W 112° 04' 57.4" | -112.08262 20.ARIZONA STATE PLANE E 649453 | N 879978 USGS QUAD SHEET Phoenix 7.5-Minute STREAMGAGE INSTALLATION DATE 01/25/2012 - WY 2012 PERIOD OF AVAILABLE DATA RECORD 01/25/2012 – Current LENGTH OF AVAILABLE DATA RECORD 12.68 Years | 4,633 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,027.403 feet NAVD88 POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 20.44 Feet | 39,558 CFS | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 729 Watershed Map Salt River at 7th Avenue - water year peaks 45,000 40,000 Discharge (cfs) 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 730 2025 WY2024 Events Date of Peak 12/22/2023 01/23/2024 02/02/2024 02/07/2024 02/08/2024 03/24/2024 04/01/2024 08/07/2024 08/18/2024 Peak Gage Height 1.97 1.44 1.39 0.94 1.29 1.18 3.52 1.61 1.71 Peak Discharge (cfs) 136 87 83 47 74 65 312 102 111 Hydrograph of peak WY 2024 flow event, 04/01/2024 Flood Flow Frequency Flood Flow Frequency Source: Analysis of Modified Roosevelt Dam 2-year 5-year 10-year 20-year 50-year 100-year --- 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 731 Salt River at 7th Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 107 2 32 2 3 4 5 6 5 7 10 19 8 16 9 1 --10 --11 --12 13 14 1 15 2 16 4 17 18 36 19 --20 21 22 19 23 21 27 --24 1 14 25 --26 27 --28 --29 ----30 ----20 --------31 -----------------------------------------------------------------------------TOTAL 0 0 40 28 59 41 109 0 0 0 60 0 MEAN 0 0 1 1 2 1 4 0 0 0 2 0 MAX 0 0 136 87 120 218 312 0 0 0 111 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 80 56 117 80 216 0 0 0 118 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 337 MEAN 1 MAX 312 MIN 0 AC_FT 668 FCDMC Annual Surface Water Report, Water Year 2024 Page 732 Salt River at 51st Avenue, ID #5307 Site Data LOCATION Located at the 51st Avenue crossing of the Salt River DRAINAGE AREA 13,052 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S29 T1N R2E LATITUDE N 33° 24' 15.7" | +33.40435 LONGITUDE W 112° 10' 07.4" | -112.16871 ARIZONA STATE PLANE E 623086 | N 874737 USGS QUAD SHEET Fowler 7.5-Minute STREAMGAGE INSTALLATION DATE 04/27/2011 - WY 2011 PERIOD OF AVAILABLE DATA RECORD 04/27/2011 - Current LENGTH OF AVAILABLE DATA RECORD 13.43 Years | 4,906 Days GAPS IN RECORD None STAGE GAGE TYPE Gas Purge Non Submersible Transducer STAGE GAGE ELEVATION 1.90 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 3 ZERO GAGE HEIGHT ELEVATION 986.611 feet NAVD88 POINT OF ZERO FLOW 1.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 15.21 Feet | 39,432 CFS | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 733 Watershed Map Salt River at 51st Avenue - water year peaks 45,000 40,000 Discharge (cfs) 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 734 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency Source: Analysis of Modified Roosevelt Dam 2-year 5-year 10-year 20-year 50-year 100-year --- 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2024 Page 735 Salt River at 51st Avenue, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 --20 --21 --22 --23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 736 Sand Tank Wash at I-8, ID #40007 Site Data LOCATION Located in Gila Bend along I-8 DRAINAGE AREA 245.6 mi2 (including drainage from Bender Wash) STREAM TYPE Natural Stream JURISDICTION Gila Bend, Arizona WATERSHED Gila Bend SECTION/TOWNSHIP/RANGE S06 T6S R4W LATITUDE N 32° 55' 59.1" | +32.93310 LONGITUDE W 112° 42' 20.8" | -112.70579 ARIZONA STATE PLANE E 457901 | N 704088 USGS QUAD SHEET Gila Bend 7.5-Minute STREAMGAGE INSTALLATION DATE 05/31/2001 - WY 2001 PERIOD OF AVAILABLE DATA RECORD 05/31/2001 - Current LENGTH OF AVAILABLE DATA RECORD 23.34 Years | 8,524 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 3.21 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 760.54 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 14,000 cfs | 7.69 feet | 08/14/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 737 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 738 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No flow recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 23,700 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 739 Sand Tank Wash at I-8, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 --13 ----14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 740 Santa Cruz River at SR84, ID #63807 Site Data LOCATION On SR 84 about 5 miles west of Casa Grande DRAINAGE AREA 78.8 mi2 (does not include upper watershed) STREAM TYPE Channelized Natural Stream JURISDICTION Pinal County, Arizona WATERSHED Santa Cruz SECTION/TOWNSHIP/RANGE S21 T6S R5E LATITUDE N 32° 52' 46.3" | +32.87952 LONGITUDE W 111° 49' 44.2" | -111.82895 ARIZONA STATE PLANE E 726905 | N 683721 USGS QUAD SHEET Casa Grande West 7.5-Minute STREAMGAGE INSTALLATION DATE 03/16/1994 - WY 1994 PERIOD OF AVAILABLE DATA RECORD 03/16/1994 - Current LENGTH OF AVAILABLE DATA RECORD 30.55 Years | 11,157 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,346.198 feet NAVD88 POINT OF ZERO FLOW -1.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,736 cfs | 4.38 feet | 08/02/2006 FCDMC Annual Surface Water Report, Water Year 2024 Page 741 Watershed Map Discharge (cfs) Santa Cruz River at SR84 - water year peaks 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 742 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 743 Peak Discharge (cfs) Santa Cruz River at SR84, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 7 8 --9 10 --11 12 --13 14 --------15 --16 17 --18 --19 --20 --21 22 23 24 25 26 --27 28 29 ----30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 744 Sauceda Wash, ID #71007 Site Data LOCATION About 5 miles south of Gila Bend on SR 85 DRAINAGE AREA 126 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Theba SECTION/TOWNSHIP/RANGE S27 T6S R5W LATITUDE N 32° 52' 49.6" | +32.88044 LONGITUDE W 112° 45' 15.4" | -112.75427 ARIZONA STATE PLANE E 442867 | N 685054 USGS QUAD SHEET Black Gap 7.5-Minute STREAMGAGE INSTALLATION DATE 02/28/1990 - WY 1990 PERIOD OF AVAILABLE DATA RECORD 02/28/1990 – Current LENGTH OF AVAILABLE DATA RECORD 34.59 Years | 12,634 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.10 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 841.472 feet NAVD88 POINT OF ZERO FLOW 0.8 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,698 cfs | 5.70 feet | 08/13/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 745 Watershed Map Sauceda Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 746 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 747 Peak Discharge (cfs) Sauceda Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 748 Scatter Wash, ID #14007 Site Data LOCATION Located west of 35th Avenue on eastbound Beardsley Road DRAINAGE AREA 12.4 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S27 T4N R2E LATITUDE N 33° 40' 08.2" | +33.66893 LONGITUDE W 112° 08' 29.8" | -112.14160 ARIZONA STATE PLANE E 631613 | N 971030 USGS QUAD SHEET Hedgpeth Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 09/18/1996 - WY 1996 PERIOD OF AVAILABLE DATA RECORD 09/18/1996 - Current LENGTH OF AVAILABLE DATA RECORD 28.04 Years | 10,240 Days GAPS IN RECORD 07/23/2008 - 11/18/2008 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,332.258 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,986 cfs | 3.00 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 749 Watershed Map Scatter Wash - water year peaks 2,000 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 750 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency 1995 Flood Insurance Study 2-year 5-year 10-year 20-year 50-year 100-year --- 220 590 1,320 3,500 6,100 FCDMC Annual Surface Water Report, Water Year 2024 Page 751 Scatter Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 --13 --14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 752 Seven Springs Wash, ID #21807 Site Data LOCATION On Seven Springs Road near Forest Road 254 DRAINAGE AREA 8.0 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S09 T7N R5E LATITUDE N 33° 57' 37.3" | +33.96035 LONGITUDE W 111° 50' 37.0" | -111.84361 ARIZONA STATE PLANE E 721905 | N 1076957 USGS QUAD SHEET Humboldt Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 03/12/2002 - WY 2002 PERIOD OF AVAILABLE DATA RECORD 03/12/2002 - Current LENGTH OF AVAILABLE DATA RECORD 22.56 Years | 8,239 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.60 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 3,481.673 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 11,700 cfs | 10.68 feet | 09/03/2005 FCDMC Annual Surface Water Report, Water Year 2024 Page 753 Watershed Map Seven Springs Wash - water year peaks 14,000 Discharge (cfs) 12,000 10,000 8,000 6,000 4,000 2,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 754 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 02/09/2024 1.72 173 Hydrograph of peak WY 2024 flow event, 02/09/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 755 Seven Springs Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 12 9 39 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 51 0 0 0 0 0 0 0 MEAN 0 0 0 0 2 0 0 0 0 0 0 0 MAX 0 0 0 0 173 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 102 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 51 MEAN 0 MAX 173 MIN 0 AC_FT 102 FCDMC Annual Surface Water Report, Water Year 2024 Page 756 Signal Butte FRS, ID #79507 Site Data LOCATION Located north of Brown Road between Meridian and Signal Butte Roads DRAINAGE AREA 16.77 mi2 IMPOUNDMENT TYPE Dam of natural drainage JURISDICTION Mesa, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S12 T1N R7E LATITUDE N 33° 26' 24.2" | +33.44005 LONGITUDE W 111° 35' 25.1" | -111.59031 ARIZONA STATE PLANE E 799545 | N 887780 USGS QUAD SHEET Apache Junction 7.5-Minute STREAMGAGE INSTALLATION DATE 11/10/1987 - WY 1988 PERIOD OF AVAILABLE DATA RECORD 11/10/1987 – Current LENGTH OF AVAILABLE DATA RECORD 36.89 | 13,475 Days Years GAPS IN RECORD 02/09/2022 - 07/07/2022 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.46 feet Gage Height STAFF GAGES 11 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,687.539 feet NAVD 1988 POINT OF ZERO FLOW (GATED OUTLET) 0.00 feet Gage Height POINT OF ZERO FLOW (UNGATED OUTLET) 15.56 feet Gage Height SPILLWAY ELEVATION 26.9 feet Gage Height TOP OF DAM ELEVATION 35.86 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 757 Watershed Map Signal Butte FRS - water year peaks 350 Volume (acre-feet) 300 250 200 150 100 50 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 758 2010 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 02/02/2024 07/25/2024 Peak Gage Height (feet) 0.67 2.47 2.96 Peak Volume (ac-ft) 0.0 3.9 7.7 Hydrograph of peak WY 2024 impoundment event, 07/25/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 759 Percent Spillway Capacity 0.0% 0.4% 0.7% Signal Butte FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 760 Signal Butte FRS, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 4 3 3 4 2 5 1 6 7 8 9 1 10 1 11 3 12 1 13 14 15 16 17 18 19 20 21 22 23 24 25 1 26 3 27 2 28 2 29 1 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 1 0 0 0 0 0 0 0 MAX 0 0 0 0 5 0 0 0 0 8 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 8 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 761 Signal Butte FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 2 -0.5 -0.5 -0.5 -0.5 2.4 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 3 -0.5 -0.5 -0.5 -0.5 2.1 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 4 -0.5 -0.5 -0.5 -0.5 1.9 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 5 -0.5 -0.5 -0.5 -0.5 1.8 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 6 -0.5 -0.5 -0.5 -0.5 0.6 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 7 -0.5 -0.5 -0.5 -0.5 1.1 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 8 -0.5 -0.5 -0.5 -0.5 1.4 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 9 -0.5 -0.5 -0.5 -0.5 1.8 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 10 -0.5 -0.5 -0.5 -0.5 1.9 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 11 -0.5 -0.5 -0.5 -0.5 2.3 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 12 -0.5 -0.5 -0.5 -0.5 0.6 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 13 -0.5 -0.5 -0.5 -0.5 -0.3 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 14 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 15 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 16 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 17 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 18 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 19 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 20 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 21 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 22 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 23 -0.5 -0.5 0.1 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 24 -0.5 -0.5 0.1 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 25 -0.5 -0.5 -0.4 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.1 -0.5 -0.5 26 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 2.3 -0.5 -0.5 27 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 2.0 -0.5 -0.5 28 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 1.9 -0.5 -0.5 29 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 0.7 -0.5 -0.5 30 -0.5 -0.5 -0.5 -0.5 --- -0.5 -0.5 -0.5 -0.5 -0.4 -0.5 -0.5 31 -0.5 --- -0.5 -0.5 --- -0.5 --- -0.5 --- -0.5 -0.5 -------------------------------------------------------------------------------MEAN -0.5 -0.5 -0.4 -0.5 0.3 -0.5 -0.5 -0.5 -0.5 -0.2 -0.5 -0.5 MAX -0.5 -0.5 0.5 -0.5 2.6 -0.5 -0.5 -0.5 -0.5 3.0 -0.5 -0.5 MIN -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 -----------------------------------------------------------------------------WTR YR 2024 MEAN -0.37 MAX 2.96 MIN -0.46 FCDMC Annual Surface Water Report, Water Year 2024 Page 762 Siphon Draw Wash at Signal Butte Road, ID #37607 Site Data LOCATION Located north of Elliot Road on Signal Butte Road DRAINAGE AREA 2.37 mi2 STREAM TYPE Natural wash flows at a culvert JURISDICTION Mesa, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S12 T1S R7E LATITUDE N 33° 21' 06.1" | +33.35169 LONGITUDE W 111° 36' 03.2" | -111.60090 ARIZONA STATE PLANE E 796420 | N 855630 USGS QUAD SHEET Desert Well 7.5-Minute STREAMGAGE INSTALLATION DATE 12/28/2016 - WY 2016 PERIOD OF AVAILABLE DATA RECORD 12/28/2016 - Current LENGTH OF AVAILABLE DATA RECORD 7.76 Years | 2,834 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES None CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 1,460.50 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 07/24/2017 | 312 cfs | 4.46 feet GH FCDMC Annual Surface Water Report, Water Year 2024 Page 763 Watershed Map Siphon Draw Wash - water year peaks 400 350 Discharge (cfs) 300 250 200 150 100 50 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 764 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/02/2024 1.23 35 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 765 Siphon Draw Wash at Signal Butte Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 14 3 4 5 6 7 8 9 10 1 11 3 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 18 0 0 0 0 0 0 0 MEAN 0 0 0 0 1 0 0 0 0 0 0 0 MAX 0 0 0 0 55 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 36 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 18 MEAN 0 MAX 55 MIN 0 AC_FT 36 FCDMC Annual Surface Water Report, Water Year 2024 Page 766 Skunk Creek near New River, ID #66207 Site Data LOCATION Located south of the Fig Spring Road crossing of Skunk Creek DRAINAGE AREA 3.92 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S29 T7N R3E LATITUDE N 33° 55' 34.3" | +33.92619 LONGITUDE W 112° 04' 57.7" | -112.08268 ARIZONA STATE PLANE E 649645 | N 1064553 USGS QUAD SHEET Daisy Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 06/21/1995 - WY 1995 PERIOD OF AVAILABLE DATA RECORD 06/21/1995 – Current LENGTH OF AVAILABLE DATA RECORD 29.28 Years | 10,695 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.45 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,188.011 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,021 cfs | 5.01 feet | 09/23/2019 FCDMC Annual Surface Water Report, Water Year 2024 Page 767 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 768 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency Flood Flow Frequency FEMA 2-year 5-year 10-year 20-year 50-year 100-year --- --- 1,730 --- 2,500 3,650 FCDMC Annual Surface Water Report, Water Year 2024 Page 769 Skunk Creek near New River, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 770 Skunk Creek at Desert Hills Drive, ID #64807 Site Data LOCATION Located at approximately 15th Avenue and Desert Hills Drive DRAINAGE AREA 40.8 mi2 STREAM TYPE Natural Stream JURISDICTION Anthem, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S19 T6N R3E LATITUDE N 33° 50' 31.3" | +33.84308 LONGITUDE W 112° 05' 31.3" | -112.09204 ARIZONA STATE PLANE E 646750 | N 1034330 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 07/23/2015 - WY 2015 PERIOD OF AVAILABLE DATA RECORD 07/23/2015 - 11/18/2022 LENGTH OF AVAILABLE DATA RECORD 9.19 Years | 3,358 Days GAPS IN RECORD 07/23/2022 – 11/18/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,848.000 feet NAVD88 POINT OF ZERO FLOW 0.50 feet Gage Height EXTREME FOR PERIOD OF RECORD 07/23/2022 | 8,650 cfs | 9.45 feet GH FCDMC Annual Surface Water Report, Water Year 2024 Page 771 Watershed Map Skunk Creek at Desert Hills Drive - water year peaks 9,000 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 772 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 26,000 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 773 Skunk Creek at Desert Hills Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 774 Skunk Creek at Carefree Highway, ID #65707 Site Data LOCATION Located on the westbound Carefree Highway bridge about 1/4 mile east of I-17 DRAINAGE AREA 48.8 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S02 T5N R2E LATITUDE N 33° 47' 54.6" | +33.79849 LONGITUDE W 112° 07' 23.1" | -112.12309 ARIZONA STATE PLANE E 637300 | N 1018120 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 08/19/2015 - WY 2015 PERIOD OF AVAILABLE DATA RECORD 08/19/2015 – Current LENGTH OF AVAILABLE DATA RECORD 9.12 Years | 3,331 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.49 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,672.858 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD ~11,000 cfs | ~8.5 feet | 07/23/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 775 Watershed Map Skunk Creek at Carefree Highway - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 776 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/31/2024 2.74 528 Hydrograph of peak WY 2024 flow event, 08/31/2024 Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 27,300 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 777 Skunk Creek at Carefree Highway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 27 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ----------53 --31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 53 27 MEAN 0 0 0 0 0 0 0 0 0 0 2 1 MAX 0 0 0 0 0 0 0 0 0 0 528 224 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 106 54 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 81 MEAN 0 MAX 528 MIN 0 AC_FT 160 FCDMC Annual Surface Water Report, Water Year 2024 Page 778 Skunk Creek at Dixileta Drive, ID #64907 Site Data LOCATION Located on Dixileta Drive about 1/4 mile east of I-17 DRAINAGE AREA 50.1 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S23 T5N R2E LATITUDE N 33° 45' 24.3" | +33.75676 LONGITUDE W 112° 07' 20.0" | -112.12222 ARIZONA STATE PLANE E 637525 | N 1002940 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 01/11/2016 - WY 2016 PERIOD OF AVAILABLE DATA RECORD 01/11/2016 - Current LENGTH OF AVAILABLE DATA RECORD 8.72 Years | 3,186 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 2.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,543.517 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 07/23/2021 | 3,186 cfs | 6.78 feet GH FCDMC Annual Surface Water Report, Water Year 2024 Page 779 Watershed Map Skunk Creek at Dixileta Drive - water year peaks 4,000 3,500 Discharge (cfs) 3,000 2,500 2,000 1,500 1,000 500 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 780 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study at CAP Canal 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 26,700 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 781 Skunk Creek at Dixileta Drive, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 782 Skunk Creek at I-17, ID #65807 Site Data LOCATION Located south of Jomax Road on I-17 DRAINAGE AREA 65.0 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S35 T5N R2E LATITUDE N 33° 43' 48.3" | +33.73007 LONGITUDE W 112° 07' 11.1" | -112.11976 ARIZONA STATE PLANE E 638257 | N 993224 USGS QUAD SHEET Union Hills 7.5-Minute STREAMGAGE INSTALLATION DATE 10/26/1989 - WY 1990 PERIOD OF AVAILABLE DATA RECORD 08/11/1990 - Current LENGTH OF AVAILABLE DATA RECORD 34.14 Years | 12,470 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Pressure Transducer STAGE GAGE ELEVATION 1.23 feet Gage Height STAFF GAGES 2 USGS Staff Plates at Gage and 2 Painted gages on walls downstream. CREST STAGE GAGES 4 ZERO GAGE HEIGHT ELEVATION 1,473.965 feet NAVD88 POINT OF ZERO FLOW 0.0 feet gage height EXTREME FOR PERIOD OF RECORD 13,900 cfs | 6.80 feet | 08/19/2014 EXTREME OUTSIDE PERIOD OF RECORD 11,500 cfs | 10.48 feet | 08/01/1964 FCDMC Annual Surface Water Report, Water Year 2024 Page 783 Watershed Map Skunk Creek at I-17 - water year peaks 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 784 2005 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study at CAP Canal 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 26,700 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 785 Skunk Creek at I-17, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 786 Skunk Tank Wash, ID #64707 Site Data LOCATION Located on 7th Avenue about 1/4 mile south of Desert Hills Drive DRAINAGE AREA 1.3 mi2 STREAM TYPE Culverts on natural stream JURISDICTION Maricopa County, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S29 T6N R3E LATITUDE N 33° 50' 23.8" | +33.83995 LONGITUDE W 112° 04' 57.8" | -112.08271 ARIZONA STATE PLANE E 649576 | N 1033251 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 03/02/2006 - WY 2006 PERIOD OF AVAILABLE DATA RECORD 03/02/2006 - Current LENGTH OF AVAILABLE DATA RECORD 18.58 Years | 6,788 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,853.960 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,278 cfs | 7.63 feet | 07/23/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 787 Watershed Map Skunk Tank Wash - water year peaks 1400 Discharge (cfs) 1200 1000 800 600 400 200 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 788 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 04/01/2024 1.57 20 Hydrograph of peak WY 2024 flow event, 04/01/2024 Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 1,440 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 789 Skunk Tank Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ----------2 --31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 2 0 0 0 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 20 0 0 0 10 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 5 0 0 0 3 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 4 MEAN 0 MAX 20 MIN 0 AC_FT 8 FCDMC Annual Surface Water Report, Water Year 2024 Page 790 Sols Wash at SR71, ID #47707 Site Data LOCATION Located 1/2 mile west of US93 on SR71 DRAINAGE AREA 0.9 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S14 T9N R7W LATITUDE N 34° 07' 06.7" | +34.11853 LONGITUDE W 112° 57' 45.8" | -112.96272 ARIZONA STATE PLANE E 383448 | N 1136141 USGS QUAD SHEET Congress SW 7.5-Minute STREAMGAGE INSTALLATION DATE 09/12/2001 - WY 2001 PERIOD OF AVAILABLE DATA RECORD 09/12/2001 - Current LENGTH OF AVAILABLE DATA RECORD 23.05 Years | 8,420 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,737.604 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 608 cfs | 2.59 feet | 06/16/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 791 Watershed Map Sols Wash at SR71 - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 792 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 793 Peak Discharge (cfs) Sols Wash at SR71, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 --4 5 --6 --7 --8 --9 10 ----11 ----12 13 14 15 16 17 18 19 20 21 22 23 ----24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 794 Sols Tributary at US93, ID #50007 Site Data LOCATION Located west of US93 near mile post 191 DRAINAGE AREA 6.5 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S11 T8N R6W LATITUDE N 34° 03' 06.8" | +34.05187 LONGITUDE W 112° 51' 01.1" | -112.85030 ARIZONA STATE PLANE E 417158 | N 1111604 USGS QUAD SHEET Flores 7.5-Minute STREAMGAGE INSTALLATION DATE 01/30/2002 - WY 2002 PERIOD OF AVAILABLE DATA RECORD 01/30/2002 – Current LENGTH OF AVAILABLE DATA RECORD 22.67 Years | 8,280 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.07 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,576.300 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 967 cfs | 3.40 feet | 07/25/2007 FCDMC Annual Surface Water Report, Water Year 2024 Page 795 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 796 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded in Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 797 Peak Discharge (cfs) Sols Tributary near US93, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 --10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 798 Sols Wash near Matthie, ID #50807 Site Data LOCATION Located along the railroad about 1 mile west of Vulture Mine Road DRAINAGE AREA 118.5 mi2 STREAM TYPE Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S32 T8N R5W LATITUDE N 33° 59' 14.8" | +33.98743 LONGITUDE W 112° 47' 34.7" | -112.79296 ARIZONA STATE PLANE E 424377 | N 1087949 USGS QUAD SHEET Vulture Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 08/04/1995 - WY 1995 PERIOD OF AVAILABLE DATA RECORD 08/04/1995 - Current LENGTH OF AVAILABLE DATA RECORD 29.16 Years | 10,651 Days GAPS IN RECORD None STAGE GAGE TYPE Non-submersible Pressure Transducer STAGE GAGE ELEVATION 1.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,230.537 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 10,792 cfs | 5.15 feet | 10/21/2000 FCDMC Annual Surface Water Report, Water Year 2024 Page 799 Watershed Map Sols Wash near Matthie - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 800 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- 4,800 --- 9,800 12,250 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 801 Sols Wash near Matthie, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 --10 --11 --12 13 14 15 --16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 ----------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 802 Sonoqui Wash near Hawes Road, ID #36307 Site Data LOCATION Located about 1/4 mile north of Riggs Road, and about 1,000 feet west of Hawes Road DRAINAGE AREA 43.4 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Queen Creek, Arizona WATERSHED Upper EMF SECTION/TOWNSHIP/RANGE S29 T2S R7E LATITUDE N 33° 13' 26.5" | +33.22402 LONGITUDE W 111° 39' 11.8" | -111.65327 ARIZONA STATE PLANE E 780550 | N 809150 USGS QUAD SHEET Chandler Heights 7.5-Minute STREAMGAGE INSTALLATION DATE 12/21/2016 - WY 2017 PERIOD OF AVAILABLE DATA RECORD 12/21/2016 - Current LENGTH OF AVAILABLE DATA RECORD 7.78 Years | 2,841 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.40 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,373.00 feet NAVD88 POINT OF ZERO FLOW 0.85 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,237 cfs | 7.10 feet Gage Height | 08/17/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 803 Watershed Map Sonoqui Wash near Hawes Road - water year peaks 2,500 Discharge (cfs) 2,000 1,500 1,000 500 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 804 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 805 Peak Discharge (cfs) Sonoqui Wash near Hawes Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 4 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 4 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 806 Sonoran Wash, ID #65907 Site Data LOCATION Located southeast of Paloma Pkwy and Sonoran Desert Drive DRAINAGE AREA 7.82 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S19 T5N R3E LATITUDE N 33° 46' 09.3" | +33.76925 LONGITUDE W 112° 05' 55.6" | -112.09878 ARIZONA STATE PLANE E 644660 | N 1007470 USGS QUAD SHEET New River SE 7.5-Minute STREAMGAGE INSTALLATION DATE 10/13/2015 - WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/13/2015 - Current LENGTH OF AVAILABLE DATA RECORD 8.97 Years | 3,276 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.34 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,574.850 feet NAVD88 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,131 cfs | 5.72 feet GH | 07/25/2021 FCDMC Annual Surface Water Report, Water Year 2024 Page 807 Watershed Map Sonoran Wash - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 808 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 809 Peak Discharge (cfs) Sonoran Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 810 South Mountain Fan, ID #70507 Site Data LOCATION Located in the western part of South Mountain Park DRAINAGE AREA 2.1 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Middle Gila SECTION/TOWNSHIP/RANGE S26 T1S R2E LATITUDE N 33° 18' 54.7" | +33.31518 LONGITUDE W 112° 08' 01.3" | -112.13369 ARIZONA STATE PLANE E 633720 | N 842264 USGS QUAD SHEET Laveen 7.5-Minute STREAMGAGE INSTALLATION DATE 06/09/1993 - WY 1993 PERIOD OF AVAILABLE DATA RECORD 06/09/1993 - Current LENGTH OF AVAILABLE DATA RECORD 31.31 Years | 11,437 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.05 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,276.61 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,586 cfs | 3.85 feet | 08/12/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 811 Watershed Map South Mountain Fan - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 812 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 813 Peak Discharge (cfs) South Mountain Fan, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 --13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 814 Spookhill FRS, ID #74707 Site Data LOCATION Located near Loop 202 and Power Road DRAINAGE AREA 13.87 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Mesa, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S31 T2N R7E LATITUDE N 33° 28' 23.0" | +33.47305 LONGITUDE W 111° 40' 52.7" | -111.68131 ARIZONA STATE PLANE E 771669 | N 899705 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 03/13/1984 - WY 1984 PERIOD OF AVAILABLE DATA RECORD 12/30/1987 – Current LENGTH OF AVAILABLE DATA RECORD 36.76 Years | 13,425 Days GAPS IN RECORD 05/02/2008 - 06/22/2008 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.28 Feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,568.10 Feet NAVD88 NORMAL DRAWDOWN RATE -0.12 feet per hour POINT OF ZERO FLOW (CONTROLLED OUTLET) 0.0 Feet Gage Height POINT OF ZERO FLOW (UNCONTROLLED OUTLET) 9.4 Feet Gage Height MINIMUM LEVEL POOL ELEVATION 3.7 feet at Brown Rd, 2.2 feet at McKellips Rd, 1.0 feet at McDowell Rd MINIMUM FREEWAY LEVEE ELEVATION 14.0 feet Gage Height SPILLWAY ELEVATION 15.8 feet Gage Height TOP OF DAM ELEVATION 25.3 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 815 Watershed Map Spookhill FRS - water year peaks 400 Volume (acre-feet) 350 300 250 200 150 100 50 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 816 2010 2015 2020 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 02/11/2024 04/01/2024 09/02/2024 Peak Gage Height (feet) 3.40 2.35 3.07 3.35 2.00 1.72 Peak Volume (ac-ft) 17.4 3.1 11.7 16.5 1.3 0.5 Hydrograph of peak 2024 impoundment event, 02/11/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 817 Percent Spillway Capacity 0.7% 0.1% 0.4% 0.5% 0.0% 0.0% Spookhill FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 27 2 2 31 9 24 3 32 7 4 31 5 11 6 7 17 8 27 9 30 10 30 11 35 12 30 13 16 14 18 15 2 16 17 18 19 20 21 22 5 23 32 21 24 34 19 25 33 7 26 14 27 28 29 30 ------9 ------31 -----------------------------------------------------------------------------TOTAL 0 0 119 47 311 9 35 0 0 0 0 33 MEAN 0 0 4 2 11 0 1 0 0 0 0 1 MAX 0 0 36 29 35 26 27 0 0 0 0 25 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 235 94 617 18 70 0 0 0 0 65 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 554 MEAN 2 MAX 36 MIN 0 AC_FT 1099 FCDMC Annual Surface Water Report, Water Year 2024 Page 818 Spookhill FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 9 3 9 4 6 5 1 6 7 8 2 9 4 10 5 11 15 12 6 13 1 14 15 16 17 18 19 20 21 22 23 10 1 24 13 1 25 9 26 2 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 1 0 2 0 0 0 0 0 0 0 MAX 0 0 17 3 17 1 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 17 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 819 Spookhill FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 1.9 0.3 0.3 0.3 0.3 0.4 2 0.3 0.3 0.3 0.3 2.7 0.3 0.9 0.3 0.3 0.3 0.3 1.6 3 0.3 0.3 0.3 0.3 2.8 0.3 0.3 0.3 0.3 0.3 0.3 0.6 4 0.3 0.3 0.3 0.3 2.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 1.1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 1.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 2.1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 2.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 2.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 3.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 2.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 1.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 1.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 2.9 1.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 3.1 1.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 2.9 0.6 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 1.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.8 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.6 0.4 1.1 0.3 0.4 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 3.4 2.4 3.4 1.9 2.0 0.3 0.3 0.3 0.3 1.7 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.39 MAX 3.40 MIN 0.28 FCDMC Annual Surface Water Report, Water Year 2024 Page 820 Stagecoach Wash, ID #20007 Site Data LOCATION On Pima Road about 1/4 miles south of Stagecoach Pass DRAINAGE AREA 1.12 mi2 STREAM TYPE Culvert at natural stream JURISDICTION Scottsdale, Arizona WATERSHED Cave Creek SECTION/TOWNSHIP/RANGE S061 T5N R5E LATITUDE N 33° 48' 42.8" | +33.81190 LONGITUDE W 111° 53' 28.0" | -111.89112 ARIZONA STATE PLANE E 707750 | N 1022941 USGS QUAD SHEET Cave Creek 7.5-Minute STREAMGAGE INSTALLATION DATE 06/13/2001 - WY 2001 PERIOD OF AVAILABLE DATA RECORD 06/13/2001 - Current LENGTH OF AVAILABLE DATA RECORD 23.30 Years | 8,511 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.85 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,548.696 feet NAVD88 POINT OF ZERO FLOW 0.7 feet Gage Height EXTREME FOR PERIOD OF RECORD 802 cfs | 5.10 feet | 07/31/2007 FCDMC Annual Surface Water Report, Water Year 2024 Page 821 Watershed Map Stagecoach Wash - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 822 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 823 Peak Discharge (cfs) Stagecoach Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 824 Stoneridge Dam, ID #77307 Site Data LOCATION About 1/2 mile north of Shea Boulevard, west of Fountain Hills Boulevard DRAINAGE AREA 0.89 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S22 T3N R6E LATITUDE N 33° 35' 40.1" | +33.59448 LONGITUDE W 111° 44' 00.0" | -111.73332 ARIZONA STATE PLANE E 755863 | N 943908 USGS QUAD SHEET Granite Reef Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 12/11/1996 - WY 1997 PERIOD OF AVAILABLE DATA RECORD 12/11/1996 – Current LENGTH OF AVAILABLE DATA RECORD 27.81 Years | 10,156 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.30 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,680.935 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 24.0 feet Gage Height TOP OF DAM ELEVATION 31.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 825 Watershed Map Volume (acre-feet) Stoneridge Dam - water year peaks 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 826 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 827 Peak Volume (ac-ft) Percent Spillway Capacity Stoneridge Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 828 Stoneridge Dam, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 829 Stoneridge Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 2 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 5 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 6 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 7 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 8 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 9 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 10 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 11 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 12 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 13 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 14 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 15 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 16 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 17 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 18 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 19 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 20 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 21 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 22 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 23 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 24 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 25 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 26 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 27 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 28 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 29 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 30 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 31 1.3 --1.3 1.3 --1.3 --1.3 --1.3 1.3 -------------------------------------------------------------------------------MEAN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MAX 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MIN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.30 MAX 1.30 MIN 1.30 FCDMC Annual Surface Water Report, Water Year 2024 Page 830 Sun Valley Parkway at Northern Avenue, ID #48307 Site Data LOCATION On Sun Valley Parkway near the Northern Avenue alignment DRAINAGE AREA 1.41 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S32 T3N R4W LATITUDE N 33° 33' 12.4" | +33.55345 LONGITUDE W 112° 40' 40.9" | -112.67803 ARIZONA STATE PLANE E 468053 | N 929747 USGS QUAD SHEET Wagner Well Wash 7.5-Minute STREAMGAGE INSTALLATION DATE 08/02/2005 - WY 2005 PERIOD OF AVAILABLE DATA RECORD 08/02/2005 - Current LENGTH OF AVAILABLE DATA RECORD 19.16 Years | 7,000 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,394.570 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 790 cfs | 1.88 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 831 Watershed Map Sun Valley Parkway at Northern Avenue - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 832 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 833 Peak Discharge (cfs) Sun Valley Parkway at Northern, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 834 Sunnycove FRS, ID #46507 Site Data LOCATION In Wickenburg south of US 60 near the cemetery DRAINAGE AREA 1.39 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S11 T7N R5W LATITUDE N 33° 57' 26.1" | +33.95725 LONGITUDE W 112° 44' 23.2" | -112.73978 ARIZONA STATE PLANE E 450401 | N 1076836 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 07/01/1986 - WY 1986 PERIOD OF AVAILABLE DATA RECORD 12/16/1988 - Current LENGTH OF AVAILABLE DATA RECORD 35.79 Years | 13,073 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 10 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,135.10 feet NAVD88 POINT OF ZERO FLOW (GATED ORIFICE) -5.32 feet Gage Height POINT OF ZERO FLOW (UNGATED ORIFICE) 14.82 feet Gage Height POINT OF ZERO FLOW (PRINCIPAL OUTLET TOWER) 36.39 feet Gage Height SPILLWAY ELEVATION 37.1 feet Gage Height TOP OF DAM ELEVATION 45.16 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 835 Watershed Map Sunnycove FRS - water year peaks 160 Volume (acre-feet) 140 120 100 80 60 40 20 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 836 2010 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 02/08/2024 03/15/2024 04/01/2024 Peak Gage Height (feet) 1.06 1.46 0.97 0.92 Peak Volume (ac-ft) 0.1 0.2 0.1 0.1 Hydrograph of peak WY 2024 impoundment event, 02/08/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 837 Percent Spillway Capacity 0.0% 0.0% 0.0% 0.0% Sunnycove FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 --21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 838 Sunnycove FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 --21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 839 Sunnycove FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.9 0.9 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.8 0.8 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.7 0.8 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.4 0.7 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.6 0.0 --0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.3 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.1 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.2 0.0 0.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 1.1 0.0 1.8 1.0 0.9 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.09 MAX 1.75 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2024 Page 840 Sunridge Canyon Dam, ID #77507 Site Data LOCATION Near the Sunridge Canyon Golf Course DRAINAGE AREA 1.58 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Fountain Hills, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S16 T3N R6E LATITUDE N 33° 36' 23.1" | +33.60641 LONGITUDE W 111° 45' 04.0" | -111.75112 ARIZONA STATE PLANE E 750419 | N 948212 USGS QUAD SHEET Sawik Mountain Dam 7.5-Minute STREAMGAGE INSTALLATION DATE 02/04/1997 - WY 1997 PERIOD OF AVAILABLE DATA RECORD 02/04/1997 – Current LENGTH OF AVAILABLE DATA RECORD 27.66 Years | 10,101 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,886.90 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 40.1 feet Gage Height TOP OF DAM ELEVATION 47.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 841 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 842 WY2024 Events Date of Peak 02/09/2024 02/29/2024 03/22/2024 Peak Gage Height (feet) 2.22 2.17 2.22 Peak Volume (ac-ft) 0.0 0.0 0.0 Hydrograph of peak WY 2024 impoundment event, 02/09/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 843 Percent Spillway Capacity 0.0% 0.0% 0.0% Sunridge Canyon Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 13 3 17 4 16 5 7 6 2 7 9 8 21 9 16 10 5 11 12 13 14 15 16 17 18 19 20 21 7 22 13 23 24 25 26 27 28 12 29 15 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 134 20 0 0 0 0 0 0 MEAN 0 0 0 0 5 1 0 0 0 0 0 0 MAX 0 0 0 0 33 33 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 266 39 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 154 MEAN 0 MAX 33 MIN 0 AC_FT 305 FCDMC Annual Surface Water Report, Water Year 2024 Page 844 Sunridge Canyon Dam, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 845 Sunridge Canyon Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 2 1.2 1.2 1.2 1.2 1.4 1.2 1.2 1.2 1.2 1.2 1.2 1.2 3 1.2 1.2 1.2 1.2 1.6 1.2 1.2 1.2 1.2 1.2 1.2 1.2 4 1.2 1.2 1.2 1.2 1.6 1.2 1.2 1.2 1.2 1.2 1.2 1.2 5 1.2 1.2 1.2 1.2 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 6 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 7 1.2 1.2 1.2 1.2 1.4 1.2 1.2 1.2 1.2 1.2 1.2 1.2 8 1.2 1.2 1.2 1.2 1.7 1.2 1.2 1.2 1.2 1.2 1.2 1.2 9 1.2 1.2 1.2 1.2 1.6 1.2 1.2 1.2 1.2 1.2 1.2 1.2 10 1.2 1.2 1.2 1.2 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 11 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 12 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 13 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 14 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 15 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 16 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 17 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 18 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 0.0 19 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 20 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 21 1.2 1.2 1.2 1.2 1.2 1.4 1.2 1.2 1.2 1.2 1.2 1.2 22 1.2 1.2 1.2 1.2 1.2 1.5 1.2 1.2 1.2 1.2 1.2 1.2 23 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 24 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 25 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 26 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 27 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 28 1.2 1.2 1.2 1.2 1.5 1.2 1.2 1.2 1.2 1.2 1.2 1.2 29 1.2 1.2 1.2 1.2 1.6 1.2 1.2 1.2 1.2 1.2 1.2 1.2 30 1.2 1.2 1.2 1.2 --1.2 1.2 1.2 1.2 1.2 1.2 1.2 31 1.2 --1.2 1.2 --1.2 --1.2 --1.2 1.2 -------------------------------------------------------------------------------MEAN 1.2 1.2 1.2 1.2 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 MAX 1.2 1.2 1.2 1.2 2.2 2.2 1.2 1.2 1.2 1.2 1.2 1.2 MIN 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.21 MAX 2.22 MIN 1.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 846 Sunset FRS, ID #46007 Site Data LOCATION In Wickenburg near US 60 and Mariposa Drive DRAINAGE AREA 0.63 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S11 T7N R5W LATITUDE N 33° 57' 53.7" | +33.96491 LONGITUDE W 112° 44' 32.6" | -112.74238 ARIZONA STATE PLANE E 449756 | N 1079633 USGS QUAD SHEET Wickenburg 7.5-Minute STREAMGAGE INSTALLATION DATE 02/12/1989 - WY 1989 PERIOD OF AVAILABLE DATA RECORD 02/12/1989 - Current LENGTH OF AVAILABLE DATA RECORD 35.63 Years | 13,015 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.96 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,113.15 feet NAVD88 POINT OF ZERO FLOW (GATED 18-INCH ORIFICE) 0.00 feet Gage Height POINT OF ZERO FLOW (UNGATED 9-INCH ORIFICE) 8.93 feet Gage Height POINT OF ZERO FLOW (WEIR AT TOP OF TOWER) 19.84 feet Gage Height SPILLWAY ELEVATION 18.71 feet Gage Height TOP OF DAM ELEVATION 29.42 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 847 Watershed Map Sunset FRS - water year peaks 70 Volume (acre-feet) 60 50 40 30 20 10 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 848 2010 2015 2020 2025 WY2024 Events Date of Peak 12/22/2023 01/23/2024 02/02/2024 03/15/2024 04/01/2024 07/21/2024 08/06/2024 Peak Gage Height (feet) 4.84 4.45 5.97 5.09 4.99 3.18 3.23 Peak Volume (ac-ft) 0.9 0.6 2.4 1.2 1.1 0.1 0.1 Hydrograph of peak 2024 impoundment event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 849 Percent Spillway Capacity 1.3% 0.9% 3.5% 1.8% 1.6% 0.1% 0.1% Sunset FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 --AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN --- AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 850 Sunset FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 2 1 3 1 4 1 5 1 6 1 7 1 8 1 1 9 1 10 --11 --12 13 14 15 16 1 17 1 18 19 20 21 22 23 1 24 1 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 1 1 2 1 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 2 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 851 Sunset FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.9 0.9 0.9 2.6 1.9 1.0 4.8 1.0 1.0 1.0 1.0 1.0 2 0.9 0.9 0.9 2.5 5.7 1.0 4.4 1.0 1.0 1.0 1.0 1.0 3 0.9 0.9 0.9 2.4 5.2 1.0 3.8 1.0 1.0 1.0 1.0 1.0 4 0.9 0.9 0.9 2.3 4.9 1.0 3.2 1.0 1.0 1.0 1.0 1.0 5 0.9 0.9 0.9 2.1 4.6 1.0 2.7 1.0 1.0 1.0 1.0 1.0 6 0.9 0.9 0.9 2.0 4.5 1.0 2.3 1.0 1.0 1.0 1.2 1.0 7 0.9 0.9 0.9 1.9 3.9 2.6 1.4 1.0 1.0 1.0 2.9 1.0 8 0.9 0.9 0.9 1.7 4.2 4.5 1.0 1.0 1.0 1.0 2.5 1.0 9 0.9 0.9 0.9 1.4 5.3 4.1 1.0 1.0 1.0 1.0 2.3 1.0 10 0.9 0.9 0.9 1.2 --3.7 1.0 1.0 1.0 1.0 2.0 1.0 11 0.9 0.9 0.9 1.2 --3.3 1.0 1.0 1.0 1.0 1.8 1.0 12 0.9 0.9 0.9 1.1 4.2 3.0 1.0 1.0 1.0 1.0 1.7 1.0 13 0.9 0.9 0.9 1.0 4.0 2.7 1.0 1.0 1.0 1.0 1.5 1.0 14 0.9 0.9 0.9 1.0 3.6 2.4 1.0 1.0 1.0 1.0 1.3 1.0 15 0.9 1.0 0.9 1.0 3.3 3.2 1.0 1.0 1.0 1.0 1.2 1.0 16 0.9 1.0 0.9 1.0 3.0 4.8 1.0 1.0 1.0 1.0 1.1 1.0 17 0.9 0.9 0.9 1.0 2.7 4.5 1.0 1.0 1.0 1.0 1.0 1.0 18 0.9 1.0 0.9 1.0 2.4 4.2 1.0 1.0 1.0 1.0 1.0 1.0 19 0.9 0.9 0.9 1.0 2.0 3.8 1.0 1.0 1.0 1.0 1.0 1.0 20 1.0 0.9 1.0 1.0 1.2 3.5 1.0 1.0 1.0 1.0 1.0 1.0 21 0.9 0.9 0.9 1.0 1.0 1.8 1.0 1.0 1.0 1.6 1.0 1.0 22 0.9 0.9 3.3 1.0 1.0 1.0 1.0 1.0 1.0 2.7 1.0 1.0 23 0.9 0.9 4.7 3.1 1.0 1.0 1.0 1.0 1.0 2.4 1.0 1.0 24 0.9 0.9 4.3 4.0 1.0 1.0 1.0 1.0 1.0 2.1 1.0 1.0 25 0.9 0.9 4.0 3.6 1.0 1.0 1.0 1.0 1.0 1.9 1.0 1.0 26 0.9 0.9 3.7 3.3 1.0 1.0 1.0 1.0 1.0 1.6 1.0 1.0 27 0.9 0.9 3.5 3.0 1.0 1.0 1.0 1.0 1.0 1.4 1.0 1.0 28 0.9 0.9 3.2 2.7 1.0 1.0 1.0 1.0 1.0 1.3 1.0 1.0 29 0.9 0.9 3.1 2.4 1.0 1.0 1.0 1.0 1.0 1.1 1.0 1.0 30 0.9 0.9 2.9 2.2 --1.0 1.0 1.0 1.0 1.0 1.0 1.0 31 0.9 --2.8 1.9 --3.6 --1.0 --1.0 1.0 -------------------------------------------------------------------------------MEAN 0.9 0.9 1.8 1.9 3.0 2.3 1.5 1.0 1.0 1.2 1.2 1.0 MAX 1.0 1.0 4.9 4.5 6.0 5.1 5.0 1.0 1.0 3.2 3.2 1.0 MIN 0.9 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 1.46 MAX 5.97 MIN 0.86 FCDMC Annual Surface Water Report, Water Year 2024 Page 852 Sycamore Creek Fire, ID #81807(transducer), 81813(radar) Site Data LOCATION Located near town of Sunflower, Arizona DRAINAGE AREA 20.2 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Verde SECTION/TOWNSHIP/RANGE S25 T7N R8E LATITUDE N 33° 55' 34.8" | +33.92634 LONGITUDE W 111° 28' 46.0" | -111.47944 ARIZONA STATE PLANE E 832620 | N 1064920 USGS QUAD SHEET Reno Pass 7.5-Minute STREAMGAGE INSTALLATION DATE 06/26/2012 - WY 2012 PERIOD OF AVAILABLE DATA RECORD 06/26/2012 - Current LENGTH OF AVAILABLE DATA RECORD 12.27 Years | 4,480 Days GAPS IN RECORD 12/26/2022 – 01/17/2023 STAGE GAGE TYPE Status Sensor, RADAR Sensor, Pressure Transducer STATUS SENSOR (81809) ELEVATION 2.60 feet Gage Height RADAR GAGE (81813) GROUND ELEVATION BELOW SENSOR 2.5 feet Gage Height TRANSDUCER GAGE (81807) ELEVATION 3.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 3,783.674 feet NAVD88 POINT OF ZERO FLOW 0.0 feet gage height EXTREME FOR PERIOD OF RECORD 7,906 cfs | 11.96 feet gage height | 08/16/2012 FCDMC Annual Surface Water Report, Water Year 2024 Page 853 Location Map Sycamore Creek Fire - water year peaks 9,000 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 854 2025 WY2024 Events Pressure Transducer Date of Peak Peak Gage Height Peak Discharge (cfs) Peak Gage Height Peak Discharge (cfs) None WY2024 Events Radar Date of Peak None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 855 Sycamore Creek Fire (Transducer Gage), runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 --20 --21 ----22 --23 --24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 856 Sycamore Creek Fire (RADAR Gage), runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 --20 --21 ----22 --23 --24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 857 Tatum Wash Basin Inflow, ID #58007 Site Data LOCATION Located near Shea Boulevard and 44th Street DRAINAGE AREA 2.17 mi2 STREAM TYPE Engineered Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Middle Indian Bend SECTION/TOWNSHIP/RANGE S30 T3N R4E LATITUDE N 33° 34' 54.1" | +33.58169 LONGITUDE W 111° 59' 04.3" | -111.98453 ARIZONA STATE PLANE E 679334 | N 939188 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 06/03/1994 - WY 1994 PERIOD OF AVAILABLE DATA RECORD 06/03/1994 – Current LENGTH OF AVAILABLE DATA RECORD 30.33 Years | 11,078 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,400.203 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,688 cfs | 3.68 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 858 Watershed Map Tatum Wash - water year peaks 1,800 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 859 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 860 Peak Discharge (cfs) Tatum Basin Inflow, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 861 Tatum Wash Basin, ID #58507 Site Data LOCATION Located near Shea Boulevard and 44th Street DRAINAGE AREA 2.17 mi2 STREAM TYPE Flood control basin on natural stream JURISDICTION Phoenix, Arizona WATERSHED Middle Indian Bend SECTION/TOWNSHIP/RANGE S30 T3N R4E LATITUDE N 33° 34' 56.8" | +33.58245 LONGITUDE W 111° 59' 01.5" | -111.98376 ARIZONA STATE PLANE E 679555 | N 939459 USGS QUAD SHEET Paradise Valley 7.5-Minute STREAMGAGE INSTALLATION DATE 05/08/1998 - WY 1998 PERIOD OF AVAILABLE DATA RECORD 05/08/1998 - Current LENGTH OF AVAILABLE DATA RECORD 26.40 Years | 9,643 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,382.739 feet NAVD88 POINT OF ZERO FLOW (LOWER FLAP-GATE) 0.50 feet Gage Height POINT OF ZERO FLOW (UPPER FLAP-GATE) 4.50 feet Gage Height POINT OF ZERO FLOW (UNCONTROLLED INLET TOWER) 11.60 feet Gage Height SPILLWAY CREST ELEVATION 12.60 feet Gage Height TOP OF BASIN ELEVATION 13.60 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 862 Watershed Map Tatum Basin - water year peaks 45 Volume (acre-feet) 40 35 30 25 20 15 10 5 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 863 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 864 Peak Volume (ac-ft) Percent Spillway Capacity Tatum Wash Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 865 Tatum Wash Basin, volume data Volume, in acre feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 866 Tatum Wash Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.3 0.4 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.05 MAX 0.45 MIN 0.05 FCDMC Annual Surface Water Report, Water Year 2024 Page 867 Tenth Street Wash Basin #1, ID #11007 Site Data LOCATION Near Cave Creek Road and Peoria Avenue DRAINAGE AREA 0.55 mi2 STREAM TYPE Flood control basin on natural stream JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S28 T3N R3E LATITUDE N 33° 34' 46.8" | +33.57969 LONGITUDE W 112° 03' 17.3" | -112.05476 ARIZONA STATE PLANE E 657933 | N 938469 USGS QUAD SHEET Sunnyslope 7.5-Minute STREAMGAGE INSTALLATION DATE 11/26/1996 - WY 1997 PERIOD OF AVAILABLE DATA RECORD 11/26/1996 - Current LENGTH OF AVAILABLE DATA RECORD 27.85 Years | 10,171 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.33 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,308.78 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 11.5 feet Gage Height TOP OF BASIN ELEVATION 13.2 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 868 Watershed Map Tenth Street Wash Basin #1 - water year peaks Volume (acre-feet) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 869 2015 2020 2025 WY2024 Events Date of Peak 11/18/2023 12/22/2023 01/23/2024 02/01/2024 02/07/2024 02/08/2024 04/01/2024 08/18/2024 Peak Gage Height (feet) 0.68 1.11 1.31 1.01 0.87 0.94 1.58 1.28 Peak Volume (ac-ft) 0.2 0.4 0.6 0.4 0.3 0.3 0.8 0.5 Hydrograph of peak 2024 impoundment event, 01/23/2023 FCDMC Annual Surface Water Report, Water Year 2024 Page 870 Percent Spillway Capacity 1.1% 2.2% 3.2% 1.9% 1.4% 1.7% 4.3% 2.7% Tenth Street Wash Basin #1, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 19 20 21 22 1 23 1 3 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 2 3 2 0 6 0 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 6 8 5 0 11 0 0 0 8 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 3 6 4 0 12 0 0 0 2 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 14 MEAN 0 MAX 11 MIN 0 AC_FT 29 FCDMC Annual Surface Water Report, Water Year 2024 Page 871 Tenth Street Wash Basin #1, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 1 0 0 1 0 0 0 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 872 Tenth Street Wash Basin #1, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.4 0.3 1.2 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.5 0.8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.4 0.3 0.4 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.7 1.1 1.3 1.0 0.7 1.6 0.3 0.3 0.3 1.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.34 MAX 1.58 MIN 0.33 FCDMC Annual Surface Water Report, Water Year 2024 Page 873 Tiger Wash, ID #27007 Site Data LOCATION Near Eagle Eye Road about 10 miles north of Salome Road DRAINAGE AREA 84.7 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S26 T5N R10W LATITUDE N 33° 44' 30.3" | +33.74175 LONGITUDE W 113° 16' 42.8" | -113.27855 ARIZONA STATE PLANE E 285979 | N 1000163 USGS QUAD SHEET Weldon Hill 7.5-Minute STREAMGAGE INSTALLATION DATE 09/15/1999 - WY 1999 PERIOD OF AVAILABLE DATA RECORD 09/15/1999 – Current LENGTH OF AVAILABLE DATA RECORD 25.05 Years | 9,148 Days GAPS IN RECORD 05/11/2023 - 09/07/2023 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 4.73 feet Gage Height STAFF GAGES None CREST STAGE GAGES 6 (Continuous Slope Area type) ZERO GAGE HEIGHT ELEVATION 1,866.15 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 4,541 cfs | 9.28 feet | 07/14/2012 EXTREME OUTSIDE PERIOD OF RECORD 7,778 cfs | 10.07 feet | 09/26/1997 FCDMC Annual Surface Water Report, Water Year 2024 Page 874 Watershed Map Discharge (cfs) Tiger Wash - water year peaks 5,000 4,500 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 875 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 876 Peak Discharge (cfs) Tiger Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 --5 6 7 8 9 --10 11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 877 Twin Buttes Wash, ID #73207 Site Data LOCATION Located on Vistancia Blvd. about 2 miles northwest of the Loop 303 DRAINAGE AREA 7.1 mi2 STREAM TYPE Natural JURISDICTION Peoria, Arizona WATERSHED Lower Agua Fria SECTION/TOWNSHIP/RANGE S25 T5N R1W LATITUDE N 33° 44' 18.4" | +33.73843 LONGITUDE W 112° 19' 10.4" | -112.31956 ARIZONA STATE PLANE E 577520 | N 996450 USGS QUAD SHEET Calderwood Butte 7.5-Minute STREAMGAGE INSTALLATION DATE 10/29/2015 - WY 2016 PERIOD OF AVAILABLE DATA RECORD 12/09/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.81 Years | 3,219 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,346.268 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 714 cfs | 3.93 feet GH | 08/12/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 878 Watershed Map Discharge (cfs) Twin Buttes Wash - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 879 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/18/2024 2.89 470 Hydrograph of peak WY 2024 flow event, 08/18/2023 Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 2,700 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 880 Twin Buttes Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 --10 11 --12 --13 14 15 16 17 --18 24 19 20 21 22 23 24 4 25 26 27 --28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 4 0 24 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 34 0 470 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 7 0 48 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 28 MEAN 0 MAX 470 MIN 0 AC_FT 56 FCDMC Annual Surface Water Report, Water Year 2024 Page 881 University Drive at 62nd Street Basin, ID #34607 Site Data LOCATION Located on the northeast corner of University Drive and 62nd Street DRAINAGE AREA 0.31 mi2 STREAM TYPE Flood control basin JURISDICTION Maricopa County, Arizona WATERSHED Upper EMF SECTION/TOWNSHIP/RANGE S13 T1N R6E LATITUDE N 33° 25' 23.6" | +33.42321 LONGITUDE W 111° 41' 47.3" | -111.69647 ARIZONA STATE PLANE E 767185 | N 881575 USGS QUAD SHEET Buckhorn 7.5-Minute STREAMGAGE INSTALLATION DATE 12/22/2016 - WY 2017 PERIOD OF AVAILABLE DATA RECORD 12/22/2016 - Current LENGTH OF AVAILABLE DATA RECORD 7.78 Years | 2,840 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,392.00 feet NAVD88 POINT OF ZERO FLOW 0.20 feet Gage Height SPILLWAY CREST ELEVATION 12.0 TOP OF BASIN ELEVATION 12.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 882 Location Map University Dr at 62nd St Basin - water year peaks 7 Volume (acre-feet) 6 5 4 3 2 1 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 883 2025 WY2024 Events Date of Peak 12/23/2023 01/23/2024 02/02/2024 02/08/2024 09/01/2024 Peak Gage Height (feet) 3.08 1.51 1.46 1.38 3.96 Peak Volume (ac-ft) 0.1 0.0 0.0 0.0 0.2 Hydrograph of peak 2024 impoundment event, 09/01/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 884 Percent Spillway Capacity 0.4% 0.0% 0.0% 0.0% 0.9% University Drive at 62nd Street Basin, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 1 3 4 5 6 7 8 1 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2 1 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 3 1 2 0 0 0 0 0 0 1 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 4 2 2 0 0 0 0 0 0 5 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 6 2 5 0 0 0 0 0 0 2 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 7 MEAN 0 MAX 5 MIN 0 AC_FT 15 FCDMC Annual Surface Water Report, Water Year 2024 Page 885 University Drive at 62nd Street Basin, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 886 University Drive at 62nd Street Basin, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 1.0 2 0.2 0.2 0.2 0.2 1.0 0.2 0.2 0.2 0.2 0.2 0.2 0.4 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 1.9 0.9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.3 MAX 0.2 0.2 3.1 1.5 1.7 0.2 0.2 0.2 0.2 0.2 0.2 4.0 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.26 MAX 3.96 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2024 Page 887 Upper Trilby Wash, ID #73807 Site Data LOCATION Located about 3 miles north of Castle Hot Springs Road DRAINAGE AREA 3.1 mi2 STREAM TYPE Natural Stream JURISDICTION Yavapai County, Arizona WATERSHED Trilby SECTION/TOWNSHIP/RANGE S12 T7N R3W LATITUDE N 33° 57' 37.5" | +33.96042 LONGITUDE W 112° 31' 45.3" | -112.52925 ARIZONA STATE PLANE E 514261 | N 1077534 USGS QUAD SHEET Red Picacho 7.5-Minute STREAMGAGE INSTALLATION DATE 09/26/2001 - WY 2001 PERIOD OF AVAILABLE DATA RECORD 09/26/2001 - Current LENGTH OF AVAILABLE DATA RECORD 23.01 Years | 8,406 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.90 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 3,030.533 feet NAVD 1988 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 419 cfs | 1.62 feet | 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 888 Watershed Map Upper Trilby Wash - water year peaks 450 400 Discharge (cfs) 350 300 250 200 150 100 50 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 889 2020 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 06/25/2024 1.32 256 Hydrograph of peak 2024 streamflow event, 06/25/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 890 Upper Trilby Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 12 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 25 0 0 12 MEAN 0 0 0 0 0 0 0 0 1 0 0 0 MAX 0 0 0 0 0 0 0 0 256 0 0 115 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 49 0 0 23 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 37 MEAN 0 MAX 256 MIN 0 AC_FT 73 FCDMC Annual Surface Water Report, Water Year 2024 Page 891 US60 at Gold Canyon, ID #36907 Site Data LOCATION Located near Superstition Mountain Drive and US60 in Gold Canyon DRAINAGE AREA 9.25 mi2 STREAM TYPE Natural wash flows at a culvert JURISDICTION Pinal County, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S07 T1S R9E LATITUDE N 33° 21' 53.5" | +33.36486 LONGITUDE W 111° 28' 32.8" | -111.47579 ARIZONA STATE PLANE E 834600 | N 860550 USGS QUAD SHEET Superstition Mountain SW 7.5-Minute STREAMGAGE INSTALLATION DATE 05/11/2016 - WY 2016 PERIOD OF AVAILABLE DATA RECORD 05/11/2016 - Current LENGTH OF AVAILABLE DATA RECORD 8.39 Years | 3,065 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,739.03 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,313 cfs | 4.16 feet GH | 08/09/2016 FCDMC Annual Surface Water Report, Water Year 2024 Page 892 Watershed Map US60 at Gold Canyon - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 893 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 02/02/2024 0.8 8 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 894 US60 at Gold Canyon, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 8 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 8 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 895 Vekol Wash, ID #74507 Site Data LOCATION Near I-8 and Vekol Valley Road DRAINAGE AREA 147.7 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Vekol SECTION/TOWNSHIP/RANGE S03 T7S R1E LATITUDE N 32° 50' 35.3" | +32.84313 LONGITUDE W 112° 15' 07.5" | -112.25207 ARIZONA STATE PLANE E 597012 | N 670657 USGS QUAD SHEET Lost Horse Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 03/07/1990 - WY 1990 PERIOD OF AVAILABLE DATA RECORD 03/07/1990 - Current LENGTH OF AVAILABLE DATA RECORD 34.57 Years | 12,627 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 4.95 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 (at gage cross section) ZERO GAGE HEIGHT ELEVATION 1,719.891 feet NAVD88 POINT OF ZERO FLOW 4.0 feet Gage Height (January 2019) EXTREME FOR PERIOD OF RECORD 10,100 cfs | 10.10 feet | 08/27/2010 FCDMC Annual Surface Water Report, Water Year 2024 Page 896 Watershed Map Vekol Wash - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 897 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 01/23/2024 5.90 400 Hydrograph of peak WY 2024 flow event, 01/23/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 898 Vekol Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 3 4 5 6 7 8 9 10 11 12 --13 14 15 16 17 18 19 20 21 22 23 40 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 40 0 0 0 0 0 0 3 0 MEAN 0 0 0 1 0 0 0 0 0 0 0 0 MAX 0 0 0 400 0 0 0 0 0 0 144 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 80 0 0 0 0 0 0 7 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 44 MEAN 0 MAX 400 MIN 0 AC_FT 87 FCDMC Annual Surface Water Report, Water Year 2024 Page 899 Vineyard FRS, ID #37007 Site Data LOCATION Located south of Apache Junction east of Ironwood Road DRAINAGE AREA 53.7 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Pinal County, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S09 T1S R8E LATITUDE N 33° 21' 03.3" | +33.35091 LONGITUDE W 111° 32' 34.2" | -111.54282 ARIZONA STATE PLANE E 814148 | N 855416 USGS QUAD SHEET Desert Well 7.5-Minute STREAMGAGE INSTALLATION DATE 11/02/1983 - WY 1984 PERIOD OF AVAILABLE DATA RECORD 11/09/1987 - Current LENGTH OF AVAILABLE DATA RECORD 36.90 Years | 13,476 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,564.139 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 11.3 feet Gage Height (South Spillway) TOP OF DAM ELEVATION 16.2 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 900 Watershed Map Vineyard FRS - water year peaks 3,500 Volume (acre-feet) 3,000 2,500 2,000 1,500 1,000 500 0 1985 1990 1995 2000 2005 Axis Title FCDMC Annual Surface Water Report, Water Year 2024 Page 901 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 902 Peak Volume (ac-ft) Percent Spillway Capacity Vineyard FRS, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 --5 ----6 --7 8 9 --10 11 12 --13 14 15 16 17 --18 --19 20 ----21 --22 --23 24 25 26 --27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 903 Vineyard FRS, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 ------5 --6 7 8 --9 10 11 12 --13 14 15 16 17 --18 --19 20 ----21 --22 --23 24 25 --26 27 28 29 ----30 ----------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 904 Vineyard FRS, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 --0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 --0.2 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.0 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.20 MAX 0.20 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2024 Page 905 Vulture Mine Road, ID #47007 Site Data LOCATION At Vulture Mine Road and Steinway Drive DRAINAGE AREA 0.13 mi2 STREAM TYPE Culvert - Natural Stream JURISDICTION Wickenburg, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S15 T7N R5W LATITUDE N 33° 57' 08.4" | +33.95233 LONGITUDE W 112° 46' 18.4" | -112.77179 ARIZONA STATE PLANE E 440699 | N 1075128 USGS QUAD SHEET Vulture Peak 7.5-Minute STREAMGAGE INSTALLATION DATE 10/26/2005 - WY 2006 PERIOD OF AVAILABLE DATA RECORD 10/26/2005 - Current LENGTH OF AVAILABLE DATA RECORD 18.93 Years | 6,915 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.60 feet Gage Height STAFF GAGES One CREST STAGE GAGES One ZERO GAGE HEIGHT ELEVATION 2,311.449 feet NAVD88 POINT OF ZERO FLOW 1.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 93 cfs | 3.58 feet | 08/03/2014 FCDMC Annual Surface Water Report, Water Year 2024 Page 906 Watershed Map Vulture Mine Road - water year peaks 180 160 Discharge (cfs) 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 907 2020 2025 WY2024 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 908 Peak Discharge (cfs) Vulture Mine Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 --11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 909 Wagner Wash at Sun Valley Parkway, ID #44707 Site Data LOCATION Located on Sun Valley Parkway at about Bell Road alignment DRAINAGE AREA 27.7 mi2 STREAM TYPE Natural wash flows at a culvert JURISDICTION Buckeye, Arizona WATERSHED Lower Hassayampa SECTION/TOWNSHIP/RANGE S05 T3N R4W LATITUDE N 33° 38' 07.0" | +33.63527 LONGITUDE W 112° 41' 25.9" | -112.69053 ARIZONA STATE PLANE E 464460 | N 959550 USGS QUAD SHEET Daggs Tank 7.5-Minute STREAMGAGE INSTALLATION DATE 02/16/2017 - WY 2017 PERIOD OF AVAILABLE DATA RECORD 02/16/2017 - Current LENGTH OF AVAILABLE DATA RECORD 7.62 Years | 2,784 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.05 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,434.800 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,358 CFS | 2.97 feet GH | 08/16/2018 FCDMC Annual Surface Water Report, Water Year 2024 Page 910 Watershed Map Discharge (cfs) Wagner Wash at SVP - water year peaks 2000 1800 1600 1400 1200 1000 800 600 400 200 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 911 2025 WY2024 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 10,358 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 912 Wagner Wash at Sun Valley Parkway, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 913 Waterman Wash at Rainbow Valley Road, ID #83307 Site Data LOCATION At Rainbow Valley Road and Queen Creek Road DRAINAGE AREA 362 mi2 STREAM TYPE Natural Stream JURISDICTION Goodyear, Arizona WATERSHED Waterman SECTION/TOWNSHIP/RANGE S10 T2S R2W LATITUDE N 33° 15' 42.2" | +33.26173 LONGITUDE W 112° 26' 38.5" | -112.44404 ARIZONA STATE PLANE E 538802 | N 823165 USGS QUAD SHEET Avondale SW 7.5-Minute STREAMGAGE INSTALLATION DATE 03/18/1999 - WY 1999 PERIOD OF AVAILABLE DATA RECORD 03/18/1999 - Current LENGTH OF AVAILABLE DATA RECORD 25.54 Years | 9,329 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.45 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,009.854 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,713 cfs | 10.82 feet | 07/30/2016 FCDMC Annual Surface Water Report, Water Year 2024 Page 914 Watershed Map Waterman Wash at Rainbow Valley Road - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 915 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 29,200 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 916 Waterman Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 917 Weekes Wash at Baseline Road, ID #39207 Site Data LOCATION Baseline Road between Idaho and Tomahawk Roads DRAINAGE AREA 11.9 mi2 STREAM TYPE Engineered channel of natural stream JURISDICTION Apache Junction, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S04 T1S R8E LATITUDE N 33° 22' 43.7" | +33.37881 LONGITUDE W 111° 32' 15.1" | -111.53752 ARIZONA STATE PLANE N 865565 | E 815734 USGS QUAD SHEET Apache Junction 7.5-Minute STREAMGAGE INSTALLATION DATE 05/27/2008 - WY 2008 PERIOD OF AVAILABLE DATA RECORD 05/27/2008 – Current LENGTH OF AVAILABLE DATA RECORD 16.35 Years | 5,971 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,620.356 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,000 cfs | 6.47 feet GH | 07/28/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 918 Watershed Map Weekes Wash at Baseline Road - water year peaks 2,500 Discharge (cfs) 2,000 1,500 1,000 500 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 919 2020 2025 WY2024 Events Date of Peak 02/02/2024 02/10/2024 03/24/2024 Peak Gage Height 1.27 0.57 0.44 Hydrograph of peak WY 2024 flow event, 02/02/2024 FCDMC Annual Surface Water Report, Water Year 2024 Page 920 Peak Discharge (cfs) 149 42 28 Weekes Wash at Baseline Road, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 8 2 21 --3 --4 ------5 --6 7 8 15 --9 10 8 11 5 12 13 14 15 16 17 --18 19 20 --21 --22 --23 8 24 6 25 --26 27 28 29 30 ------2 ------31 -----------------------------------------------------------------------------TOTAL 0 0 0 8 43 8 8 0 0 0 0 0 MEAN 0 0 0 0 1 0 0 0 0 0 0 0 MAX 0 0 0 17 149 28 26 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 17 85 16 16 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 68 MEAN 0 MAX 149 MIN 0 AC_FT 134 FCDMC Annual Surface Water Report, Water Year 2024 Page 921 White Tanks FRS #3, ID #87307 Site Data LOCATION Located on the eastern foothills of the White Tank Mountains, south of Northern Avenue DRAINAGE AREA 20.5 mi2 STREAM TYPE Impounding of natural drainage JURISDICTION Maricopa County, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S09 T2N R2W LATITUDE N 33° 31' 56.0" | +33.53322 LONGITUDE W 112° 28' 19.2" | -112.47199 ARIZONA STATE PLANE E 531079 | N 922261 USGS QUAD SHEET Waddell 7.5-Minute STREAMGAGE INSTALLATION DATE 03/12/1986 - WY 1986 PERIOD OF AVAILABLE DATA RECORD 01/01/1988 - Current LENGTH OF AVAILABLE DATA RECORD 36.75 Years | 13,423 Days GAPS IN RECORD 12/14/2005 - 06/18/2008 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 5 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,191.00 feet NAVD 1988 POINT OF ZERO FLOW (CONTROLLED) 0.00 feet Gage Height POINT OF ZERO FLOW (CONTROLLED BYPASS OUTLETS) 6.0 feet Gage Height POINT OF ZERO FLOW (UNCONTROLLED) 9.0 feet Gage Height SPILLWAY ELEVATION 21.0 feet Gage Height TOP OF DAM ELEVATION 27.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2024 Page 922 Watershed Map FCDMC Annual Surface Water Report, Water Year 2024 Page 923 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 924 Percent Spillway Capacity White Tanks FRS #3, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 925 White Tanks FRS #3, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 926 White Tanks FRS #3, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0.15 MAX 0.15 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2024 Page 927 White Tanks FRS #4, ID #87807 Site Data LOCATION Located south of I-10 and west of Jackrabbit Trail DRAINAGE AREA 18.6 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Buckeye, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S05 T1N R2W LATITUDE N 33° 27' 05.2" | +33.45145 LONGITUDE W 112° 29' 57.6" | -112.48268 ARIZONA STATE PLANE E 523795 | N 891981 USGS QUAD SHEET Perryville 7.5-Minute STREAMGAGE INSTALLATION DATE 01/09/1986 - WY 1986 PERIOD OF AVAILABLE DATA RECORD 10/01/1987 – Current LENGTH OF AVAILABLE DATA RECORD 37.00 Years | 13,515 Days GAPS IN RECORD 06/01/2011 - 11/16/2011 | 12/13/2016 - 06/27/2017 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.60 feet Gage Height STAFF GAGES 6 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,030.00 FEET NAVD88 SPILLWAY ELEVATION 23.0 FEET GAGE HEIGHT TOP OF DAM ELEVATION 29.1 FEET GAGE HEIGT FCDMC Annual Surface Water Report, Water Year 2024 Page 928 Watershed Map White Tanks FRS #4 - water year peaks 700 Volume (acre-feet) 600 500 400 300 200 100 0 1985 1990 1995 2000 2005 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 929 2010 2015 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 930 Percent Spillway Capacity White Tanks FRS #4, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 931 White Tanks FRS #4, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 932 White Tanks FRS #4, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.4 -0.6 -0.6 -0.6 -0.6 -0.6 2 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 4 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 5 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 7 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 8 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 9 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 10 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 11 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 12 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 13 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 14 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 15 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 16 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 17 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 18 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 19 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 20 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 21 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 22 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 23 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 24 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 25 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 26 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 27 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 28 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 29 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 30 -0.6 -0.6 -0.6 -0.6 --- -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 31 -0.6 --- -0.6 -0.6 --- -0.6 --- -0.6 --- -0.6 -0.6 -------------------------------------------------------------------------------MEAN -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 MAX -0.6 -0.6 -0.6 -0.6 -0.5 -0.6 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 MIN -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -----------------------------------------------------------------------------WTR YR 2024 MEAN -0.60 MAX -0.08 MIN -0.60 FCDMC Annual Surface Water Report, Water Year 2024 Page 933 White Tank Outlet Channel, ID #87407 Site Data LOCATION Located at the northwest corner of Indian School Road and Jackrabbit Trail DRAINAGE AREA 26.8 mi2 (includes White Tanks #3) STREAM TYPE Natural JURISDICTION Buckeye, Arizona WATERSHED White Tanks B SECTION/TOWNSHIP/RANGE S20 T2N R2W LATITUDE N 33° 29' 38.0" | +33.49389 LONGITUDE W 112° 28' 45.4" | -112.47929 ARIZONA STATE PLANE E 528480 | N 907700 USGS QUAD SHEET Perryville 7.5-Minute STREAMGAGE INSTALLATION DATE 12/07/2016 - WY 2017 PERIOD OF AVAILABLE DATA RECORD 12/07/2016 – Current LENGTH OF AVAILABLE DATA RECORD 7.82 Years | 2,855 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.55 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,153.400 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 425 cfs | 2.06 feet GH | 07/23/2020 FCDMC Annual Surface Water Report, Water Year 2024 Page 934 Watershed Map White Tanks Outlet Channel - water year peaks 500 450 Discharge (cfs) 400 350 300 250 200 150 100 50 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 935 2025 WY2024 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2024 flow event No runoff recorded during Water Year 2024. Flood Flow Frequency FEMA Flood Insurance Study 5-year 10-year 20-year 50-year 100-year 500-year --- --- --- --- 726 --- FCDMC Annual Surface Water Report, Water Year 2024 Page 936 White Tank Outfall Channel, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 937 Whitlow Ranch Dam, ID #63307 Site Data LOCATION East of Apache Junction near Queen Valley DRAINAGE AREA 143.5 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Pinal County, Arizona WATERSHED Queen Creek SECTION/TOWNSHIP/RANGE S36 T1S R10E LATITUDE N 33° 17' 56.6" | +33.29906 LONGITUDE W 111° 16' 32.8" | -111.27579 ARIZONA STATE PLANE E 895771 | N 836925 USGS QUAD SHEET Florence Junction 7.5-Minute STREAMGAGE INSTALLATION DATE 01/08/1998 - WY 1998 PERIOD OF AVAILABLE DATA RECORD 08/02/2000 - Current LENGTH OF AVAILABLE DATA RECORD 24.16 Years | 8,826 Days GAPS IN RECORD 03/13/2024-09/17/2024 STAGE GAGE TYPE Non-submersible Pressure Transducer STAGE GAGE ELEVATION 11.70 feet Gage Height STAFF GAGES 25 CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 2,057.750 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 110.4 feet Gage Height TOP OF DAM ELEVATION 143.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 58.20 feet GH | 6,965 Acre-Feet (19.6% full) | 02/12/2005 EXTREME OUTSIDE PERIOD OF RECORD 71.3 feet GH | 11,939 Acre-Feet (33.5% full) | 01/11/1993 FCDMC Annual Surface Water Report, Water Year 2024 Page 938 Watershed Map Whitlow Ranch Dam - water year peaks 8,000 Volume (acre-feet) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 939 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No impoundment recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 940 Peak Volume (ac-ft) Percent Spillway Capacity Whitlow Ranch Dam, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --------------2 --------------3 --------------4 ----------------------------5 --------------6 ----------------7 --------------8 9 --------------10 --------------11 --------------12 --------------13 ------------------------------14 --------------15 --------------16 17 ------------18 ------------19 ------------20 ------------21 ------------------------22 ------------23 ------------24 25 ------------26 ------------27 ------------28 ------------29 ----------------------------30 ------------------31 -----------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 ----------0 MEAN 0 0 0 0 0 0 ----------0 MAX 0 0 0 0 0 0 ----------0 MIN 0 0 0 0 0 0 ----------0 AC_FT 0 0 0 0 0 0 ----------0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 941 Whitlow Ranch Dam, volume data Volume, in acre-feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --------------2 --------------3 --------------4 ----------------------------5 --------------6 ----------------7 --------------8 9 --------------10 --------------11 --------------12 --------------13 ------------------------------14 --------------15 --------------16 17 ------------18 ------------19 ------------20 ------------21 ------------------------22 ------------23 ------------24 25 ------------26 ------------27 ------------28 ------------29 ----------------------------30 ------------------31 -----------------------------------------------------------------------------MEAN 0 0 0 0 0 0 ----------0 MAX 0 0 0 0 0 0 ----------0 MIN 0 0 0 0 0 0 ----------0 -----------------------------------------------------------------------------WTR YR 2024 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2024 Page 942 Whitlow Ranch Dam, stage data Depth, in feet, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 11.7 11.7 --- 11.7 11.7 11.7 ------------2 11.7 11.7 --- 11.7 11.7 11.7 ------------3 11.7 11.7 --- 11.7 11.7 11.7 ------------4 11.7 11.7 --- 11.7 11.7 11.7 ------------5 11.7 11.7 --- 11.7 11.7 11.7 ------------6 11.7 11.7 --- 11.7 11.7 11.7 ------------7 11.7 ----- 11.7 11.7 11.7 ------------8 11.7 11.7 --- 11.7 11.7 11.7 ------------9 11.7 11.7 --- 11.7 11.7 11.7 ------------10 11.7 11.7 --- 11.7 11.7 11.7 ------------11 11.7 11.7 --- 11.7 11.7 11.7 ------------12 11.7 11.7 --- 11.7 11.7 11.7 ------------13 11.7 11.7 --- 11.7 11.7 --------------14 11.7 11.7 11.7 11.7 11.7 --------------15 11.7 11.7 11.7 11.7 11.7 --------------16 11.7 11.7 11.7 11.7 11.7 --------------17 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 18 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 19 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 20 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 21 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 ------------- 11.7 22 11.7 11.7 11.7 11.7 11.7 23 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 24 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 25 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 26 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 27 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 28 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 29 11.7 11.7 11.7 11.7 11.7 ------------- 11.7 30 11.7 --- 11.7 11.7 --------------- 11.7 31 11.7 --- 11.7 11.7 ---------------------------------------------------------------------------------------------MEAN 11.7 11.7 11.7 11.7 11.7 11.7 ----------- 11.7 MAX 11.7 11.7 11.7 11.7 11.7 11.7 ----------- 11.7 MIN 11.7 11.7 11.7 11.7 11.7 11.7 ----------- 11.7 -----------------------------------------------------------------------------WTR YR 2024 MEAN 11.71 MAX 11.72 MIN 11.70 FCDMC Annual Surface Water Report, Water Year 2024 Page 943 Winters Wash, ID #25507 Site Data LOCATION Located north of Camelback Road and west of 395th Avenue DRAINAGE AREA 28.9 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Lower Centennial SECTION/TOWNSHIP/RANGE S18 T2N R6W LATITUDE N 33° 30' 31.5" | +33.50876 LONGITUDE W 112° 54' 44.0" | -112.91222 ARIZONA STATE PLANE E 396542 | N 914090 USGS QUAD SHEET Hot Rock Mountain 7.5-Minute STREAMGAGE INSTALLATION DATE 07/11/2000 - WY 2000 PERIOD OF AVAILABLE DATA RECORD 07/11/2000 - Current LENGTH OF AVAILABLE DATA RECORD 24.22 Years | 8,848 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.32 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,120.00 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,400 cfs | 4.27 feet | 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2024 Page 944 Watershed Map Winters Wash - water year peaks 1600 Discharge (cfs) 1400 1200 1000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2024 Page 945 2020 2025 WY2024 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2024 impoundment event No runoff recorded during Water Year 2024. FCDMC Annual Surface Water Report, Water Year 2024 Page 946 Peak Discharge (cfs) Winters Wash, runoff data Discharge, in cfs-days, Water Year October 2023 to September 2024 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2 23 24 25 26 27 28 29 30 ------------31 -----------------------------------------------------------------------------TOTAL 0 0 2 0 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 24 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 4 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2024 TOTAL 2 MEAN 0 MAX 24 MIN 0 AC_FT 4 FCDMC Annual Surface Water Report, Water Year 2024 Page 947 End of Report FCDMC Annual Surface Water Report, Water Year 2024 Page 948