HYDROLOGIC DATA REPORT VOLUME II - SURFACE WATER AND STREAMFLOW DATA WATER YEAR 2023 Revision 2, 11/15/2023 Picture #1 (39507), Salt River near Val Vista Dr. Photo Date: March 13, 2023. vii 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 29th annual water data report published by the District. Annual reports are available for Water Years 1994 – 2023. 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 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 Introduction............................................................. iv Data Collection ......................................................... v - viii Definition of Terms .................................................... ix – xii Station Location Map .................................................. xiii New Installations in Water Year 2023 ............................... xiv Revisions to Previous Reports ........................................ xiv Stations Included in this Report ..................................... xv – xx Summary of Significant Streamflow Events ........................ xxi - xxii Max Flow Events for Water Year 2023 ............................. xxiii – xxv Data Presentation ...................................................... xxvi Station Data Pages ..................................................... 1 - 965 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 2 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 208 218 138 70 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 29th 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. Only data from FCDMC instruments are reported when both agencies exist. vi Table 2: USGS Continuous Stations, WY 2023 USGS Station Name Indian Bend Wash at Curry Road nr Tempe 09512162 Location Lat/Long DD MM SS 33 26 25 / 111 54 52 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 vii USGS Station ID FCD Gage No Table 3: USGS Annual Peak Stations, WY 2023 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 09520230 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. ALERT Automated Local Evaluation in Real Time. The data collection system used by the District. 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 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. ix Discharge (Q) The volume of water (or more broadly, total fluid plus suspended sediment), that passes a given point within a given period of time. 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 or impoundment 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 2-year 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, 2022 and ending September 30, 2023, is called the "2023 Water Year." Streamflow Water Year xii FIGURE 1: FCDMC STREAMFLOW AND IMPOUNDMENT GAGE LOCATIONS – WY 2023 Figure 1. FCDMC streamflow and impoundment gage location map Streamflow Station Impoundment / Storage Station xiii New Installations in Water Year 2023 Table 5: New Installations Station Buckeye Floodway Sensor ID 44307 Date Installed 02/07/2023 Requesting Agency Station Changes in Water Year 2023 • • • • • Added Buckeye Floodway, Station No. 50443 Removed UPRR Underpass at First Avenue, Station No. 50031 Removed UPRR Underpass at Central Avenue, Station No. 50032 Removed Salt River at 67th Avenue, Station No. 50058 Removed Dysart Drain @ El Mirage, Station No. 50857 Revisions To Previous Editions of This Report • xiv None 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..............................................................................................18 Adobe Dam Outlet, ID #65007 ...........................................................................................23 Agua Fria River at Grand Avenue, ID #14707 ....................................................................27 Agua Fria River at Buckeye Road, ID #85307 ....................................................................31 Amigos Wash, ID #80507 ..................................................................................................35 Antelope Creek, ID #55207 ................................................................................................39 Apache Junction FRS, ID #81307 ......................................................................................43 Apache Trail, ID #36507 ....................................................................................................49 Aspen Dam, ID #78707 ......................................................................................................53 Baseline Road at 43rd Avenue Basin, ID #66407 ................................................................59 Bender Wash, ID #40507 ...................................................................................................65 Berneil Wash, ID #59207 ...................................................................................................69 Blue Tank Wash, ID #52707 ..............................................................................................73 Box Wash, ID #47507 ........................................................................................................77 Buckeye Floodway, ID #44307...........................................................................................81 Buckeye FRS #1, ID #44007 ..............................................................................................85 Buckeye FRS #2, ID #44507 ..............................................................................................91 Buckeye FRS #3, ID #48807 ..............................................................................................97 Bullard Wash at Indian School Road, ID #89507..............................................................103 Bullard Wash at Van Buren Street, ID #89207 .................................................................107 Camelback Road at 24th Avenue Basin, ID #6807............................................................111 CAP Reach #11 Dike #1, ID #8407 ..................................................................................117 CAP Reach #11, Dike #2, ID #58607 ...............................................................................123 CAP Reach #11, Dike #3, ID #60107 ...............................................................................129 CAP Reach #11, Dike #4, ID #59807 ...............................................................................135 Casandro Wash, ID #52007 .............................................................................................141 Casandro Dam, ID #53007 ..............................................................................................145 Cave Buttes Dam Pool, ID #19517 ..................................................................................151 Cave Buttes Dam Outlet, ID #19507 ................................................................................156 Cave Creek at Ashdale Ranger Station, ID #21307 .........................................................160 Cave Creek at Spur Cross, ID #20707 .............................................................................164 xv Cave Creek, ID #19007....................................................................................................168 Cave Creek near Cave Creek, ID #20507 ........................................................................172 Cave Creek at CAP, ID #19807 .......................................................................................176 Cave Creek near Union Hills Drive, ID #8007 ..................................................................180 Cave Creek at Cactus Road, ID #11807 ..........................................................................184 Centennial Wash near Aguila, ID #29007 ........................................................................188 Centennial Wash at Wenden, ID #27507 .........................................................................192 Centennial Levee, ID #25707 ...........................................................................................196 Centennial Railroad, ID #24707 .......................................................................................200 Centennial Tributary at Dobbins Road, ID #22807 ...........................................................204 Cline Creek, ID #66007 ....................................................................................................208 Colter Channel at El Mirage Road, ID #85507 .................................................................212 Columbus Wash, ID #40807 ............................................................................................216 Copper Wash, ID #41007 .................................................................................................220 Crossroads Park Basin, ID #33007 ..................................................................................224 Cruff Wash, ID #23707.....................................................................................................229 Daggs Wash, ID #48507 ..................................................................................................233 Deadman Wash @ Loop 303, ID #62107 .........................................................................237 Delaney Wash, ID #25007 ...............................................................................................241 Desert Hills Wash, ID #19307 ..........................................................................................245 Dreamy Draw Dam, ID #9807 ..........................................................................................249 Dysart Drain at LAFB, ID #85807 .....................................................................................255 Dysart Drain at El Mirage Road, ID #85707 .....................................................................259 East Fork Cave Creek Basin #1, ID #7807 .......................................................................263 East Fork Cave Creek Basin #3A, ID #8807 ....................................................................269 East Fork Cave Creek Basin #3B, ID #8707 ....................................................................275 East Fork Cave Creek Basin #4, ID #8207 .......................................................................281 East Fork Cave Creek near 7th Avenue, ID #8507 ............................................................287 El Mirage Road Drain, ID #14507 ....................................................................................291 East Maricopa Floodway at Broadway Road, ID #34307..................................................295 East Maricopa Floodway below Powerline Floodway, ID #33707 .....................................299 East Maricopa Floodway at Queen Creek Road, ID #34807 ............................................303 East Maricopa Floodway at Arizona Avenue, ID #35507 ..................................................307 Estrella Fan, ID #84207 ...................................................................................................311 Flying E Wash, ID #51707 ...............................................................................................315 Ford Canyon Wash, ID #86207 ........................................................................................319 Fourth of July Wash, ID #41207 .......................................................................................323 xvi Freestone Basin, ID #32807 ............................................................................................327 Galloway Wash at Galloway Road, ID #20607 .................................................................332 Gila River at Olberg Road, ID #42007 ..............................................................................336 Gila River at Maricopa Road, ID #41707 ..........................................................................340 Gila River at 116th Avenue, ID #70707 .............................................................................344 Gila River at Estrella Parkway, ID #83807........................................................................348 Golden Eagle Park Dam, ID #78007 ................................................................................352 Grand Avenue at 27th Avenue Basin, ID #3807 ................................................................358 Granite Reef Diversion, ID #75007 ..................................................................................364 Granite Reef Wash, ID #57507 ........................................................................................368 Greene Wash at SR 84, ID #64007 ..................................................................................372 Guadalupe Channel, ID #35707 .......................................................................................376 Guadalupe FRS, ID #68207 .............................................................................................380 Harquahala FRS, ID #26007 ............................................................................................386 Hartman Wash, ID #51207 ...............................................................................................392 Hassayampa River at Wagoner, ID #54307 .....................................................................396 Hassayampa River at Box Canyon, ID #53507 ................................................................400 Hassayampa River at US60, ID #45707 ...........................................................................404 Hassayampa River near Morristown, ID #45507 ..............................................................408 Hassayampa River at I-10, ID #48007 .............................................................................412 Hesperus Dam, ID #79007 ...............................................................................................416 Indian Bend Wash at Sweetwater Avenue, ID #58307 .....................................................422 Indian Bend Wash at Shea Boulevard, ID #59507 ...........................................................426 Indian Bend Wash near Indian Bend Road, ID #56307 ....................................................430 Indian Bend Wash at McDonald Drive, ID #57207 ...........................................................434 Indian Bend Wash at Indian School Road, ID #56507 ......................................................438 Indian Bend Wash near McKellips Road, ID #55707 ........................................................442 Indian Bend Wash Interceptor Channel, ID #56807 .........................................................446 Jackrabbit Wash, ID #45007 ............................................................................................450 Lake Margherite, ID #59007 .............................................................................................454 Laveen Basin, ID #67807 .................................................................................................458 Magma FRS, ID #42307 ..................................................................................................464 Martinez Wash, ID #49507 ...............................................................................................470 McDowell Mountain Road, ID #76007 ..............................................................................474 McMicken Dam at Bell Road, ID #71507 ..........................................................................478 McMicken Dam, ID #71707 ..............................................................................................482 McMicken Floodway, ID #71307 ......................................................................................488 xvii Mineral Canyon Basin, ID #68807 ....................................................................................492 New River Fire, ID #62707 ...............................................................................................498 New River @ Loop 303, ID #62213 ..................................................................................502 New River Dam Pool, ID #62017 .....................................................................................506 New River Dam Outlet, ID #62007 ...................................................................................511 New River at Bell Road, ID #61707 ..................................................................................515 New River at Glendale Avenue, ID #61507 (transducer), #61513 (radar) .........................519 North Heights Dam, ID #78207 ........................................................................................524 Old Crosscut Canal near McDowell Road, ID #4707 ........................................................530 Paradise Lane at 33rd Drive Basin, ID #12407..................................................................534 Paradise Lane at 47th Avenue Basin, ID #13707 ..............................................................540 Pecos Sediment Basin, ID #70007 ...................................................................................546 Pecos Basin Pool, ID #70017...........................................................................................552 Pecos North Inflow, ID #69307.........................................................................................558 Pecos East Inflow, ID #69507 ..........................................................................................562 Pecos West Inflow, ID #69807 .........................................................................................566 Phoenix Dam #2A, ID #8907 ............................................................................................570 Phoenix Dam #2B, ID #9907 ............................................................................................576 Phoenix Dam #3, ID #11507 ............................................................................................582 Phoenix Dam #4, ID #12207 ............................................................................................588 Phoenix Dam #7, ID #13307 ............................................................................................594 Phoenix Dam #99, ID #12707 ..........................................................................................600 Phoenix East Park Dam, ID #13007 .................................................................................606 Phoenix West Park Dam, ID #13507 ................................................................................612 Phoenix Zoo Dam #3, ID #4307 .......................................................................................618 Phoenix Zoo Dam #5, ID #4407 .......................................................................................624 Picacho Wash, ID #74207 ................................................................................................630 Pima Canyon Wash, ID #68707 .......................................................................................634 Powder House Wash, ID #52507 .....................................................................................638 Powerline Floodway, ID #37507 .......................................................................................642 Powerline FRS, ID #36807 ...............................................................................................646 Price Drain @ Loop 202, ID #31507 ................................................................................652 Prickly Pear Wash, ID #8107 ...........................................................................................656 Queen Creek at CAP, ID #38007 .....................................................................................660 Queen Creek at Rittenhouse Road, ID #37707 ................................................................664 Rainbow Wash, ID #42807 ..............................................................................................668 Rawhide Wash, ID #61007 ..............................................................................................672 xviii Reata Pass Dam, ID #61207............................................................................................676 Reata Pass Wash, ID #60007 ..........................................................................................682 Red Mountain Freeway Levee at McDowell Road, ID #80007..........................................686 Red Mountain Freeway Levee at McKellips Road , ID #79807 .........................................692 Red Mountain Freeway Levee at Brown Road, ID #81507 ...............................................698 Rittenhouse FRS, ID #37207 ...........................................................................................704 Roeser Road at 23rd Avenue Basin, ID #66807 ................................................................710 Saddleback FRS, ID #25207 ............................................................................................716 Salt River below Granite Reef Dam, ID #75307 ...............................................................722 Salt River at Val Vista Drive, ID #39507 ...........................................................................726 Salt River at Priest Drive, ID #67307 ................................................................................730 Salt River at 7th Avenue, ID #68007 .................................................................................734 Salt River at 51st Avenue, ID #5307 .................................................................................738 Salt River at 67th Avenue, ID #5807 .................................................................................742 Sand Tank Wash at I-8, ID #40007 ..................................................................................746 Santa Cruz River at SR84, ID #63807..............................................................................750 Sauceda Wash, ID #71007 ..............................................................................................754 Scatter Wash, ID #14007 .................................................................................................758 Seven Springs Wash, ID #21807 .....................................................................................762 Signal Butte FRS, ID #79507 ...........................................................................................766 Siphon Draw Wash at Signal Butte Road, ID #37607 .......................................................772 Skunk Creek near New River, ID #66207 .........................................................................776 Skunk Creek at Desert Hills Drive, ID #64807 ..................................................................780 Skunk Creek at Carefree Highway, ID #65707 .................................................................784 Skunk Creek at Dixileta Drive, ID #64907 ........................................................................788 Skunk Creek at I-17, ID #65807 .......................................................................................792 Skunk Tank Wash, ID #64707..........................................................................................796 Sols Wash at SR71, ID #47707........................................................................................800 Sols Tributary at US93, ID #50007 ...................................................................................804 Sols Wash near Matthie, ID #50807 .................................................................................808 Sonoqui Wash near Hawes Road, ID #36307 ..................................................................812 Sonoran Wash, ID #65907 ...............................................................................................816 South Mountain Fan, ID #70507 ......................................................................................820 Spookhill FRS, ID #74707 ................................................................................................824 Stagecoach Wash, ID #20007..........................................................................................830 Stoneridge Dam, ID #77307 .............................................................................................834 Sun Valley Parkway at Northern Avenue, ID #48307 .......................................................840 xix Sunnycove FRS, ID #46507 .............................................................................................844 Sunridge Canyon Dam, ID #77507 ..................................................................................850 Sunset FRS, ID #46007 ...................................................................................................856 Sycamore Creek Fire, ID #81807(transducer), 81813(radar)............................................862 Tatum Wash Basin Inflow, ID #58007 ..............................................................................867 Tatum Wash Basin, ID #58507 ........................................................................................871 Tenth Street Wash Basin #1, ID #11007 ..........................................................................877 Tiger Wash, ID #27007 ....................................................................................................883 Twin Buttes Wash, ID #73207 ..........................................................................................887 University Drive at 62nd Street Basin, ID #34607 ..............................................................891 Upper Trilby Wash, ID #73807 .........................................................................................897 UPRR Underpass at First Avenue, ID #3107 ...................................................................901 UPRR Underpass at Central Avenue, ID #3207 ...............................................................905 US60 at Gold Canyon, ID #36907 ....................................................................................909 Vekol Wash, ID #74507 ...................................................................................................913 Vineyard FRS, ID #37007 ................................................................................................917 Vulture Mine Road, ID #47007 .........................................................................................923 Wagner Wash at Sun Valley Parkway, ID #44707............................................................927 Waterman Wash at Rainbow Valley Road, ID #83307 .....................................................931 Weekes Wash at Baseline Road, ID #39207....................................................................935 White Tanks FRS #3, ID #87307 ......................................................................................939 White Tanks FRS #4, ID #87807 ......................................................................................945 White Tank Outlet Channel, ID #87407 ............................................................................951 Whitlow Ranch Dam, ID #63307 ......................................................................................955 Winters Wash, ID #25507 ................................................................................................961 xx SUMMARY OF SIGNIFICANT STREAMFLOW EVENTS Rainfall and runoff in Maricopa County normally occur primarily in the winter and summer seasons. Occasionally, significant rainfall occurs during the transitional season following the summer monsoon. In summary, Water Year 2023 was a year of extremes both in terms of weather and runoff events. The winter was one of the wettest seasons followed by one of the driest monsoons on record. The water year got off to a promising start with an event on the 15th of October that hit the western portion of the county leading to new extremes for two stream gages and several impoundments around the county. A number of smaller precipitation events occurred throughout the months of October, November, and December with the next event of note occurring on January 2nd. This event caused impoundments but little actual stream flow, affecting mostly the southeast of the county. These low-intensity longer duration storms occurred regularly throughout the months of January, February, and March across both the lower deserts, including the Phoenix Valley, as well as the higher terrain to the north and east of the County. Many of the reservoirs along the upper Salt River approached capacity due to the intermittent rain in the valleys and the snow in the mountains. In response the Salt River Project (SRP) conducted large releases of water from their reservoirs. Releases started on 03/01/2023 and ended on 05/11/2023 resulting in the most notable flow events of the water year. Each of the downstream Salt gaging sites registered flow. Most measured the extreme for their period of record. The Gila River past the confluence with the Salt also registered major flows, though not extremes of record. During the multi-month dam release, there were several additional precipitation events. The most notable event occurred on March 22nd, predominantly affecting Cave Creek, New River, and the Hassayampa River. After the wet winter and spring, the Valley experienced a very dry monsoon season. The only noteworthy runoff event occurred on 1st of September where a heavy rain fell across north central Maricopa County leading to flows in Skunk Creek and Deadman Wash. Table 6: Stations with Flow Events Recorded Stations recording flow in winter: Stations with no flow in winter: Stations recording flow in summer: *Stations with no flow in summer: 147 61 72 133 70.7 % 29.3 % 35.1 % 64.9 % * Three stations removed before summer monsoon started 49 (forty-nine) stations recorded no runoff in Water Year 2023. xxi Figrue 2: Count of Measurable Streamflow 120 Count of PT Events 100 80 60 40 20 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Months WY2023 20 Year Average Figure 2: The bar graph above compares the monthly count of measurable streamflow and impoundment events this water year verses the 20-year average. Only gages with 20 years of history were used. Highlights of the runoff and impoundment events are summarized on the following three pages. xxii Table 7: Maximum Flows Recorded this Water Year Maximum Flows for Water Year 2023 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Discharge (cfs) Stage (feet) Date EMF at Queen Creek Road, ID #34807 Rainbow Wash, ID #50428 Tiger Wash, ID #27007 Upper Trilby Wash, ID #73807 Waterman Wash @ Rainbow Valley Road, ID #50833 Winters Wash, ID #25507 4,315 448 1,339 2,368 587 419 1,700 1,400 13.00 3.25 2.98 4.42 6.06 1.62 7.25 4.27 10/16/2022 10/15/2022 10/16/2022 10/15/2022 10/15/2022 10/15/2022 10/15/2022 10/15/2022 Cave Creek at Ashdale Ranger Station, ID #21307 Cave Creek at Spur Cross, ID #20707 Cave Creek (in town of Cave Creek), ID #19007 Cave Creek near Cave Creek, ID #20507 Hassayampa R. @ Box Canyon, ID #53507 Hassayampa R. @ US 60, ID #45707 Hassayampa R. near Morristown, ID #45507 New River Fire, ID #62707 New River Dam Outlet, ID #62007 New River at Bell Road, ID #61707 New River at Glendale Avenue, ID #61507 Seven Springs Wash, ID #21807 2,072 2,887 3,715 1,569 8,097 15,907 7,903 9,661 1,097 2,033 1,478 5,778 6.80 9.07 6.97 3.54 10.26 4.29 12.25 5.80 8.68 2.18 3.49 3.21 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/22/2023 03/23/2023 03/22/2023 Gila R. @ 116th Ave., ID #70707 Gila R. @ Estrella Pkwy., ID #83807 Salt River below Granite Reef Diversion, ID #75307 Salt River at Val Vista Drive, ID #39507 Salt River at Priest Drive, ID #67307 Salt River at 7th Avenue, ID #68007 Salt River at 51st Avenue, ID #5307 Salt River at 67th Avenue, ID #5807 40,647 56,396 30,748 35,564 63,246 39,558 39,431 5,807 8.39 15.31 19.25 14.13 11.69 20.44 15.21 13.00 03/23/2023 03/24/2023 03/23/2023 03/23/2023 03/23/2023 03/23/2023 03/23/2023 03/23/2023 Centennial Railroad, ID #24707 Cruff Wash, ID #23707 xxiii Water Year 2023 Deadman Wash at SR303L, ID #62107 Skunk Creek at Desert Hills Drive, ID #64807 Skunk Creek at Carefree Highway, ID #65707 Skunk Creek at Dixileta Drive, ID #64907 Skunk Creek at I-17, ID #65807 Skunk Tank Wash, ID #64707 3,607 1,435 1,156 965 986 674 3.28 3.94 3.71 3.00 2.13 7.09 09/01/2023 08/31/2023 09/01/2023 09/01/2023 09/01/2023 08/31/2023 Note: Many stations recorded multiple events. These are the maximum peaks for the year. xxiv Water Year 2023 Maximum Impoundments for Water Year 2023 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Discharge (cfs) Stage (feet) (ac-ft) Contents (%full) Date Buckeye FRS #1, ID #44007 Buckeye FRS #2, ID #44507 Harquahala FRS, ID #26007 Laveen Basin, ID #67807 Powerline FRS, ID #36807 Red Mountain Freeway Levee at McDowell Road, ID #80007 Red Mountain Freeway Levee at McKellips Road, ID #79807 Red Mountain Freeway Levee at Brown Road, ID #81507 White Tanks FRS #4, ID #87807 41 42 0 12 14 37 41 46 0 2.99 1.35 7.02 4.81 1.20 2.24 2.03 1.99 4.95 160.0 7.8 1.9 10.5 73.6 23.2 43.1 99.3 39.7 2.5 0.6 0.0 8.3 1.2 0.4 1.1 1.5 2.7 10/15/2022 10/16/2022 10/16/2022 10/16/2022 10/15/2022 10/16/2022 10/16/2022 10/15/2022 10/16/2022 Freestone Basin, ID #32807 Magma FRS, ID #42307 Rittenhouse FRS, ID #37207 Vineyard FRS, ID #37007 Whitlow Ranch Dam, ID #63307 12 28 105 25 393 7.61 3.81 9.71 2.02 17.14 11.9 5.8 447.8 335.5 118.7 7.2 0.2 11.7 7.4 1.3 01/02/2023 01/02/2023 01/02/2023 01/02/2023 01/02/2023 Paradise Lane at 33rd Drive Basin, ID #12407 Phoenix Dam #2A, ID #8907 Phoenix Dam #3, ID #11507 Phoenix Dam #4, ID #12207 Phoenix Dam #7, ID #13307 Phoenix West Park Dam, ID #13507 20 15 34 14 26 5 2.17 3.3 4.31 2.79 3.25 0.98 19.2 5.3 1.2 0.7 0.8 1.5 22.8 8.8 2.0 1.8 0.4 1.3 03/01/2023 03/01/2023 03/01/2023 03/01/2023 03/01/2023 03/01/2023 New River Dam Pool, ID #62017 Sunnycove FRS, ID #46507 Sunset FRS, ID #46007 210 0 18 5.10 11.95 8.70 162.4 10.8 11.6 0.3 5.0 16.5 03/16/2023 03/16/2023 03/15/2023 Note: Many stations recorded multiple events. These include the maximum peaks for the year. xxv Water Year 2023 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 Flood Control District of Maricopa County. The data pages are in alphabetical order by 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 has occurred, the data will typically not be retrieved from the device. xxvi 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 29.60 Years | 10,811 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 2023 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 2023 Page 2 2015 2020 2025 WY2023 Events Date of Peak 10/15 7/27 Peak Gage Height 2.59 1.54 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 3 Peak Discharge (cfs) 30 13 ACDC at 36th Street, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 7 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 8 0 MEAN 0 0 MAX 30 0 MIN 0 0 AC_FT 15 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 1 0 1 --0 0 1 0 0 24 2 1 0 1 0 1 12 0 0 0 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 4 ------0 0 0 0 0 0 0 0 1 0 1 MAX --0 0 0 0 0 30 0 0 0 0 0 MIN --0 0 0 0 0 0 3 0 13 0 5 AC_FT Arizona Canal Diversion Channel at 14th Street, ID #10507 Site Data LOCATION Near 14th Street and Orangewood Avenue DRAINAGE AREA 13.6 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 29.64 Years | 10,826 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 2023 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 2023 Page 6 2015 2020 2025 WY2023 Events Date of Peak 3/1 7/26 Peak Gage Height (feet) 0.97 1.77 Hydrograph of peak WY 2023 flow event, 07/26/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 7 Peak Discharge (cfs) 46 137 ACDC at 14th Street, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 28 2 16 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 5 27 6 28 12 29 --30 --31 --------1 -------------------------------------------------------------------------------TOTAL 0 0 0 0 12 43 0 0 0 11 1 0 MEAN 0 0 0 0 0 1 0 0 0 0 0 0 MAX 0 0 0 0 23 46 0 0 0 137 21 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 24 86 0 0 0 21 2 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 67 MEAN 0 MAX 137 MIN 0 AC_FT 134 FCDMC Annual Surface Water Report, Water Year 2023 Page 8 Arizona Canal Diversion Channel at 43rd Avenue, ID #11307 Site Data LOCATION Near Peoria and 43rd Avenues DRAINAGE AREA 258.6 mi2 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 32.88 Years | 12,009 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 2023 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 2023 Page 10 2015 2020 2025 WY2023 Events Date of Peak 10/15 3/1 Peak Gage Height (feet) 2.74 1.69 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 11 Peak Discharge (cfs) 1279 496 ACDC at 43rd Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 91 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 91 0 MEAN 3 0 MAX 1279 0 MIN 0 0 AC_FT 181 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 231 JAN Daily Mean Values FEB MAR APR 72 35 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 12 ------0 0 0 0 0 107 4 496 0 214 1 MAX --0 0 0 0 0 1279 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 395 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 33.32 Years | 12,169 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 2023 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 2023 Page 14 2015 2020 2025 WY2023 Events Date of Peak 10/13 10/15 10/20 11/4 12/4 12/28 1/2 1/17 2/15 2/22 3/2 3/16 3/25 4/27 8/16 8/18 9/1 Peak Gage Height (feet) 3.42 3.66 1.17 1.31 1.51 2.98 2.63 2.29 2.44 1.07 4.00 2.49 3.02 1.02 1.46 1.26 2.54 Hydrograph of peak WY 2023 flow event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 15 Peak Discharge (cfs) 300 400 26 30 37 169 100 74 85 23 558 89 179 26 35 29 93 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 2023 Page 16 ACDC at 67th Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 4 5 2 6 7 8 9 5 10 5 11 2 12 1 13 4 2 14 15 94 16 163 17 19 18 19 20 4 21 22 23 24 3 25 3 26 27 28 29 30 31 1 --TOTAL 291 19 MEAN 9 1 MAX 400 30 MIN 0 0 AC_FT 577 38 WTR YR 2023 TOTAL DEC 7 30 3 14 6 3 JAN 27 52 8 2 Daily Mean Values FEB MAR APR 41 167 19 2 3 JUN JUL AUG SEP 55 3 4 4 1 7 4 16 37 36 9 8 4 7 35 5 5 3 59 19 203 7 100 0 402 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 17 10 46 5 1 1 17 7 3 11 5 2 142 5 169 0 282 1417 MAY ------72 3 85 0 142 18 15 118 114 18 1 574 19 558 0 1139 4 MAX 8 --3 0 13 0 5 558 0 0 0 0 0 MIN --0 0 0 0 0 0 2 --8 30 74 0 1 2 26 45 93 0 0 0 16 60 147 AC_FT 2810 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 35.09 Years | 12,815 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 2023 Page 18 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 19 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 20 Percent Spillway Capacity Adobe Dam Pool, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 21 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Adobe Dam Pool, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2.9 2.9 2 2.9 2.9 3 2.9 2.9 4 2.9 2.9 5 2.9 2.9 6 2.9 2.9 7 2.9 2.9 8 2.9 2.9 9 2.9 2.9 10 2.9 2.9 11 2.9 2.9 12 2.9 2.9 13 2.9 2.9 14 2.9 2.9 15 2.9 2.9 16 2.9 2.9 17 2.9 2.9 18 2.9 2.9 19 2.9 2.9 20 2.9 2.9 21 2.9 2.9 22 2.9 2.9 23 2.9 2.9 24 2.9 2.9 25 2.9 2.9 26 2.9 2.9 27 2.9 2.9 28 2.9 2.9 29 2.9 2.9 30 2.9 2.9 31 2.9 --MEAN 2.9 2.9 MAX 2.9 2.9 MIN 2.9 2.9 WTR YR 2023 MEAN DEC 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.85 JAN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MAX Daily Mean Values FEB MAR APR 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 --2.9 2.9 --2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.85 MIN 2.85 FCDMC Annual Surface Water Report, Water Year 2023 Page 22 MAY 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 JUN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 JUL 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 AUG 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 SEP 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 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 33.16 Years | 12,112 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 2023 Page 23 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 2023 Page 24 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 9/2 0.51 6 Hydrograph of peak WY 2023 flow event, 09/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 25 Adobe Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 7 Daily Mean Values FEB MAR APR 1 0 2 0 2 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 26 ------0 0 1 0 1 0 0 0 1 0 0 MAX MAY --0 0 0 0 0 6 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG 0 0 0 0 0 SEP 1 4 1 --6 0 6 0 11 14 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) 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 29.43 Years | 10,749 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 2023 Page 27 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 2023 Page 28 2015 2020 2025 WY2023 Events Date of Peak 3/1 3/15 Peak Gage Height 3.14 3.01 Hydrograph of peak WY 2023 flow event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 29 Peak Discharge (cfs) 32 17 Agua Fria River at Grand Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 2 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 1 Daily Mean Values FEB MAR APR 1 1 2 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 17 1 1 1 2 0 8 0 4 9 3 0 4 0 7 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 30 ------0 0 0 0 0 0 3 0 32 0 6 MAX --0 0 0 0 0 32 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 34.97 Years | 12,772 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 2023 Page 31 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 2023 Page 32 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 3/24 0.48 373 Hydrograph of peak WY 2023 flow event, 03/24/2023 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 2023 Page 33 Agua Fria River Buckeye Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 527 43 212 11 0 0 0 0 0 266 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 34 ------0 0 0 0 0 266 9 373 0 527 1 MAX --0 0 0 0 0 373 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 10.73 Years | 3,917 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 2023 Page 35 Watershed Map Amigos Wash - water year peaks 800 700 Discharge (cfs) 600 500 400 300 200 100 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 36 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 9/12 1.10 125 Hydrograph of peak WY 2023 flow event, 09/12/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 37 Amigos Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 1 0 0 0 0 0 1 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 38 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 125 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --1 0 125 0 1 1 Antelope Creek, ID #55207 Site Data LOCATION Located about 1.5 miles upstream from Martinez Wash(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 20.23 Years | 7,389 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 2023 Page 39 Watershed Map Antelope Creek - water year peaks 8,000 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 2023 Page 40 2020 2025 WY2023 Events Date of Peak 1/1 1/17 3/22 5/19 9/7 Peak Gage Height (feet) 3.35 3.27 2.27 2.62 2.47 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 41 Peak Discharge (cfs) 1042 976 132 295 213 Antelope Creek, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 120 134 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 2 --- 204 304 74 ----41 --- 0 762 0 25 0 1042 0 0 0 1512 1616 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 42 ------0 0 0 0 0 41 1 132 0 82 4 MAX --0 811 0 26 0 295 0 0 0 1609 1042 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --2 0 212 0 3 3206 Apache Junction FRS, ID #81307 Site Data LOCATION Located near Idaho Road and Lost Dutchman Boulevard DRAINAGE AREA 6.15 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 35.04 Years | 12,799 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 2023 Page 43 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 2023 Page 44 2010 2015 2020 2025 WY2023 Events Date of Peak 7/26 9/12 Peak Gage Height (feet) 1.39 1.74 Peak Volume (ac-ft) 0.5 0.8 Hydrograph of peak WY 2023 impoundment event, 09/12/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 45 Percent Spillway Capacity 0.0 0.1 Apache Junction FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 1 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 46 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 14 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 11 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 14 0 1 1 Apache Junction FRS, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 47 ------0 0 0 1 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 1 0 Apache Junction FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.1 0.1 16 0.1 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 0.1 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.13 JAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.1 0.5 0.1 0.1 0.1 0.1 1.74 MIN 0.13 FCDMC Annual Surface Water Report, Water Year 2023 Page 48 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 1.4 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 1.7 0.1 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 4.26 Years | 1,557 Days GAPS IN RECORD 10/17/2019 – 11/04/2019, 04/22/2022 – 05/02/2022 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 2023 Page 49 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 2023 Page 50 2025 WY2023 Events Date of Peak 12/3 1/1 2/26 3/1 3/15 7/26 9/13 Peak Gage Height 0.41 0.41 0.28 0.65 0.52 1.41 0.63 Hydrograph of peak WY 2023 flow event, 07/26/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 51 Peak Discharge (cfs) 8 8 5 16 11 51 15 Apache Trail, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 3 0 MIN 0 0 AC_FT 1 0 WTR YR 2023 TOTAL DEC JAN 2 Daily Mean Values FEB MAR APR 1 MAY JUN JUL AUG SEP 2 0 0 0 51 11 0 0 3 1 AC_FT --0 0 15 0 1 25 1 1 --- --- 1 1 2 0 8 0 5 13 2 0 8 0 4 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 52 1 ------1 0 5 0 1 0 3 0 16 0 5 MAX --4 --3 0 11 0 5 51 0 0 0 0 0 MIN --0 0 0 0 0 0 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 26.74 Years | 9,768 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 2023 Page 53 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 2023 Page 54 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 55 Percent Spillway Capacity Aspen Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 56 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Aspen Dam, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 57 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Aspen Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.2 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.24 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.24 MIN 0.24 FCDMC Annual Surface Water Report, Water Year 2023 Page 58 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 Baseline Road at 43rd Avenue Basin, ID #66407 Site Data LOCATION Located on the basin at the northeast corner of Baseline Rd and 43 rd 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 8.00 Years | 2,922 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 2023 Page 59 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 2023 Page 60 2021 2022 2023 2024 2025 WY2023 Events Date of Peak 10/16 12/3 12/28 3/1 3/15 7/26 Peak Gage Height (feet) 1.87 0.49 0.55 0.57 0.62 2.18 Peak Volume (ac-ft) 0.0 0.0 0.0 0.0 0.0 0.3 Hydrograph of peak WY 2023 impoundment event, 07/26/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 61 Percent Spillway Capacity 0.0 0.0 0.0 0.0 0.0 0.9 Baseline Road at 43rd Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 0 NOTE: No discharge rating exists for this site. FCDMC Annual Surface Water Report, Water Year 2023 Page 62 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --0 0 0 0 0 MIN 0 Baseline Road at 43rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 63 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Baseline Road at 43rd Avenue Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.5 0.2 16 0.7 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 1.9 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.2 0.6 0.2 0.21 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.3 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 2.18 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 64 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 2.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 19.39 Years | 7,081 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 2023 Page 65 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 2023 Page 66 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 3/28 1.67 94 Hydrograph of peak WY 2023 flow event, 03/27/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 67 Bender Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 49 25 0 0 0 0 0 25 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 68 ------0 0 0 0 0 0 25 1 94 0 49 MAX --0 0 0 0 0 94 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 25.17 Years | 9,194 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 2023 Page 69 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 2023 Page 70 2015 2020 2025 WY2023 Events Date of Peak 10/14 10/16 10/25 10/28 11/8 12/28 1/1 3/1 3/15 Peak Gage Height (feet) 0.62 0.72 0.32 0.50 0.70 0.37 0.42 0.83 0.37 Hydrograph of peak WY 2023 flow event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 71 Peak Discharge (cfs) 118 144 52 89 138 62 72 173 62 Berneil Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 5 8 37 9 10 11 12 7 13 11 14 16 15 5 16 10 17 --18 19 20 21 22 23 24 3 25 12 26 27 28 13 29 30 31 --TOTAL 77 42 MEAN 2 1 MAX 144 138 MIN 0 0 AC_FT 153 83 WTR YR 2023 TOTAL DEC JAN 8 Daily Mean Values FEB MAR APR 17 2 MAY JUN JUL AUG SEP 1 5 1 9 9 0 62 0 17 161 8 0 72 0 16 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 72 ------0 0 0 0 0 24 1 173 0 48 0 MAX --0 0 0 0 0 173 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --1 0 19 0 2 320 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 4.34 Years | 1,586 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 2023 Page 73 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 2023 Page 74 2025 WY2023 Events Date of Peak 3/22 5/19 Peak Gage Height 1.80 3.00 Hydrograph of peak WY 2023 flow event, 05/19/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 75 Peak Discharge (cfs) 487 1338 Blue Tank Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 --32 20 --21 22 80 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 80 0 32 0 0 0 0 MEAN 0 0 0 0 0 3 0 1 0 0 0 0 MAX 0 0 0 0 0 487 0 1338 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 158 0 63 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 112 MEAN 0 MAX 1338 MIN 0 AC_FT 222 FCDMC Annual Surface Water Report, Water Year 2023 Page 76 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 20.56 Years | 7,509 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 2023 Page 77 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 2023 Page 78 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 9/2 0.82 153 Hydrograph of peak WY 2023 flow event, 09/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 79 Box Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 1 0 0 0 0 0 1 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 80 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 153 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --1 0 153 0 2 2 Buckeye Floodway, ID #44307 Site Data LOCATION Located at the north side of the Buckey 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) 0.65 Years | 236 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 2023 Page 81 Watershed Map Volume (acre-feet) Buckeye #1 FRS - 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 2023 Page 82 2024 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 83 Peak Discharge (cfs) Buckeye Floodway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 2023 TOTAL DEC ------------------------------------------------------------------------0 Daily Mean Values JAN FEB MAR APR MAY ------------------------------------------------------------------------------------0 0 0 0 --0 0 0 0 --0 0 0 0 --0 0 0 0 --0 0 0 0 MEAN 0 MAX 0 MIN *Station not installed until February 7th FCDMC Annual Surface Water Report, Water Year 2023 Page 84 JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 35.86 Years | 13,096 Days GAPS IN RECORD 01/21/2010 – 03/01/2010, 10/10/2021 – 01/03/2022 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 2023 Page 85 Watershed Map Buckeye 1 3 2 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 2023 Page 86 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 10/15 2.99 160.0 2.5 Hydrograph of peak WY 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 87 Buckeye FRS #1, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 16 20 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 24 0 MEAN 1 0 MAX 41 0 MIN 0 0 AC_FT 47 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 24 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 88 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 41 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 47 Buckeye FRS #1, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 12 16 43 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 2 0 MAX 160 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 89 ------0 0 0 160 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Buckeye FRS #1, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.5 0.2 16 1.7 0.2 17 0.3 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.3 0.2 MAX 3.0 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.21 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.99 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 90 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 Buckeye FRS #2, ID #44507 Site Data LOCATION Located north of I-10 near Miller Road DRAINAGE AREA 5.7 mi2 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 30.89 Years | 11,281 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 2023 Page 91 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 2023 Page 92 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 10/16 1.35 7.8 0.6 Hydrograph of peak WY 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 93 Buckeye FRS #2, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 16 14 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 15 0 MEAN 0 0 MAX 42 0 MIN 0 0 AC_FT 29 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 15 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 94 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 42 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 29 Buckeye FRS #2, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 8 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 95 ------0 0 0 8 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Buckeye FRS #2, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV DEC 1 -1.4 -1.4 -1.4 2 -1.4 -1.4 -1.4 3 -1.4 -1.4 -1.4 4 -1.4 -1.4 -1.4 5 -1.4 -1.4 -1.4 6 -1.4 -1.4 -1.4 7 -1.4 -1.4 -1.4 8 -1.4 -1.4 -1.4 9 -1.4 -1.4 -1.4 10 -1.4 -1.4 -1.4 11 -1.4 -1.4 -1.4 12 -1.4 -1.4 -1.4 13 -1.4 -1.4 -1.4 14 -1.4 -1.4 -1.4 15 -1.3 -1.4 -1.4 16 -0.1 -1.4 -1.4 17 -1.3 -1.4 -1.4 18 -1.4 -1.4 -1.4 19 -1.4 -1.4 -1.4 20 -1.4 -1.4 -1.4 21 -1.4 -1.4 -1.4 22 -1.4 -1.4 -1.4 23 -1.4 -1.4 -1.4 24 -1.4 -1.4 -1.4 25 -1.4 -1.4 -1.4 26 -1.4 -1.4 -1.4 27 -1.4 -1.4 -1.4 28 -1.4 -1.4 -1.4 29 -1.4 -1.4 -1.4 30 -1.4 -1.4 -1.4 31 -1.4 --- -1.4 MEAN -1.3 -1.4 -1.4 MAX 1.4 -1.4 -1.4 MIN -1.4 -1.4 -1.4 WTR YR 2023 MEAN -1.39 JAN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 MAX Daily Mean Values FEB MAR APR -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 --- -1.4 -1.4 --- -1.4 -1.4 --- -1.4 ---1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 1.35 MIN -1.39 FCDMC Annual Surface Water Report, Water Year 2023 Page 96 MAY -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 JUN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 ---1.4 -1.4 -1.4 JUL -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 AUG -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 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 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 ---1.4 -1.4 -1.4 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 30.85 Years | 11,269 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 2023 Page 97 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 98 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 10/15 0.03 0.1 0.0 Hydrograph of peak WY 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 99 Buckeye FRS #3, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1 0 MEAN 0 0 MAX 2 0 MIN 0 0 AC_FT 2 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 1 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 100 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 2 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 2 Buckeye FRS #3, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 101 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Buckeye FRS #3, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV DEC 1 -4.1 -4.1 -4.1 2 -4.1 -4.1 -4.1 3 -4.1 -4.1 -4.1 4 -4.1 -4.1 -4.1 5 -4.1 -4.1 -4.1 6 -4.1 -4.1 -4.1 7 -4.1 -4.1 -4.1 8 -4.1 -4.1 -4.1 9 -4.1 -4.1 -4.1 10 -4.1 -4.1 -4.1 11 -4.1 -4.1 -4.1 12 -4.1 -4.1 -4.1 13 -4.1 -4.1 -4.1 14 -4.1 -4.1 -4.1 15 -3.5 -4.1 -4.1 16 -3.3 -4.1 -4.1 17 -4.1 -4.1 -4.1 18 -4.1 -4.1 -4.1 19 -4.1 -4.1 -4.1 20 -4.1 -4.1 -4.1 21 -4.1 -4.1 -4.1 22 -4.1 -4.1 -4.1 23 -4.1 -4.1 -4.1 24 -4.1 -4.1 -4.1 25 -4.1 -4.1 -4.1 26 -4.1 -4.1 -4.1 27 -4.1 -4.1 -4.1 28 -4.1 -4.1 -4.1 29 -4.1 -4.1 -4.1 30 -4.1 -4.1 -4.1 31 -4.1 --- -4.1 MEAN -4.0 -4.1 -4.1 MAX 0.0 -4.1 -4.1 MIN -4.1 -4.1 -4.1 WTR YR 2023 MEAN -4.08 JAN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 MAX Daily Mean Values FEB MAR APR -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 --- -4.1 -4.1 --- -4.1 -4.1 --- -4.1 ---4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 0.03 MIN -4.08 FCDMC Annual Surface Water Report, Water Year 2023 Page 102 MAY -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 JUN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 ---4.1 -4.1 -4.1 JUL -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 AUG -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 SEP -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 ---4.1 -4.1 -4.1 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 17.26 Years | 6,305 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 2023 Page 103 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 2023 Page 104 2020 2025 WY2023 Events Date of Peak 10/3 10/16 Peak Gage Height 0.51 0.57 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 105 Peak Discharge (cfs) 14 17 Bullard Wash at Indian School Road, ID #6868 Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 8 2 46 7 0 0 0 0 0 63 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 106 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 227 0 0 0 0 0 MIN --0 0 0 0 0 --53 10 0 2 0 0 227 17 0 0 0 0 105 19 0 0 AC_FT 124 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 5.80 Years | 2,118 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 | 08/14/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 107 Location Map Bullard Wash at Van Buren St. - water year peaks 160 140 Discharge (cfs) 120 100 80 60 40 20 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 108 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 109 Peak Discharge (cfs) Bullard Wash at Van Buren Street, ID #89207 Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 110 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 10/01/2015 – WY 2016 PERIOD OF AVAILABLE DATA RECORD 10/01/2015 – Current LENGTH OF AVAILABLE DATA RECORD 8.00 Years | 2,922 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 2023 Page 111 Location Map FCDMC Annual Surface Water Report, Water Year 2023 Page 112 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event, No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 113 Percent Spillway Capacity Camelback Road at 24th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --0 0 0 0 0 MIN NOTE: There is no discharge rating for this site at this time. FCDMC Annual Surface Water Report, Water Year 2023 Page 114 0 Camelback Road at 24th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 115 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Camelback Road at 24th Avenue Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.5 0.5 2 0.5 0.5 3 0.5 0.5 4 0.5 0.5 5 0.5 0.5 6 0.5 0.5 7 0.5 0.5 8 0.5 0.5 9 0.5 0.5 10 0.5 0.5 11 0.5 0.5 12 0.5 0.5 13 0.5 0.5 14 0.5 0.5 15 0.5 0.5 16 0.5 0.5 17 0.5 0.5 18 0.5 0.5 19 0.5 0.5 20 0.5 0.5 21 0.5 0.5 22 0.5 0.5 23 0.5 0.5 24 0.5 0.5 25 0.5 0.5 26 0.5 0.5 27 0.5 0.5 28 0.5 0.5 29 0.5 0.5 30 0.5 0.5 31 0.5 --MEAN 0.5 0.5 MAX 0.5 0.5 MIN 0.5 0.5 WTR YR 2023 MEAN DEC 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.50 JAN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 MAX Daily Mean Values FEB MAR APR 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 0.5 --0.5 0.5 --0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.50 MIN 0.50 FCDMC Annual Surface Water Report, Water Year 2023 Page 116 MAY 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 JUN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 JUL 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 AUG 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 SEP 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 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 7.20 Years | 2,630 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 2023 Page 117 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 2023 Page 118 2025 WY2023 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 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 119 Percent Spillway Capacity CAP Reach 11 Dike #1, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 --- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 120 ------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 CAP Reach 11 Dike #1, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --0 0 0 0 0 0 0 0 0 --0 0 0 --- 3 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 121 ------0 0 0 31 0 0 0 MIN --0 0 0 0 0 31 0 CAP Reach 11 Dike #1, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.25 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 122 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 7.20 Years | 2,630 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 2023 Page 123 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 124 WY2023 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 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 125 Percent Spillway Capacity CAP Reach 11 Dike #2, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 ----- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 126 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 5 0 0 5 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT CAP Reach 11 Dike #2, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --0 0 0 0 0 0 0 0 0 --0 0 0 3 ----- 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 127 ------0 0 0 467 0 0 0 MIN --0 0 0 0 0 467 0 CAP Reach 11 Dike #2, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.66 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 128 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 7.20 Years | 2,630 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 2023 Page 129 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 130 WY2023 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 2023 impoundment event, No impoundments recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 131 Percent Spillway Capacity CAP Reach 11 Dike #3, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 --- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 132 ------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 CAP Reach 11 Dike #3, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --0 0 0 0 0 0 0 0 0 --0 0 0 1 --- 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 133 ------0 0 0 140 0 0 0 MIN --0 0 0 0 0 140 0 CAP Reach 11 Dike #3, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 --0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 --0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.59 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 134 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 7.20 Years | 2,630 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 2023 Page 135 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 136 WY2023 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 2023 impoundment event No impoundments were recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 137 Percent Spillway Capacity CAP Reach 11 Dike #4, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 138 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 CAP Reach 11 Dike #4, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --0 0 0 0 0 0 0 0 0 --0 0 0 1 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 139 ------0 0 0 228 0 0 0 MIN --0 0 0 0 0 228 0 CAP Reach 11 Dike #4, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.61 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 140 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 29.22 Years | 10,673 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 2023 Page 141 Watershed Map Casandro Wash - water year peaks 800 700 Discharge (cfs) 600 500 400 300 200 100 0 1990 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 142 2015 2020 2025 WY2023 Events Date of Peak 1/1 3/15 9/1 Peak Gage Height (feet) 1.75 4.76 1.90 Hydrograph of peak WY 2023 flow event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 143 Peak Discharge (cfs) 6 343 48 Casandro Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 13 16 17 18 19 20 --21 --22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 13 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 6 0 343 0 2 0 0 0 48 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 25 0 0 0 0 0 1 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 13 MEAN 0 MAX 343 MIN 0 AC_FT 26 FCDMC Annual Surface Water Report, Water Year 2023 Page 144 Casandro 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 27.13 Years | 9,908 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 2023 Page 145 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 2023 Page 146 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 3/15 7.23 13.6 11.3 Hydrograph of peak 2023 impoundment event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 147 Casandro Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 23 8 4 ----- 0 0 0 0 0 11 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 148 ------0 0 0 0 0 0 11 0 17 0 23 MAX --0 0 0 0 0 17 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Casandro Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --0 0 0 0 0 0 0 0 0 --0 0 0 4 1 ----- 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 149 ------0 0 0 14 0 14 0 MIN --0 0 0 0 0 0 0 Casandro Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.2 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3.0 0.2 0.2 1.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.3 0.2 0.2 7.2 0.2 0.2 0.2 0.2 7.23 MIN 0.19 FCDMC Annual Surface Water Report, Water Year 2023 Page 150 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 ----0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 36.00 Years | 13,149 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 2023 Page 151 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 2023 Page 152 2010 2015 2020 2025 WY2023 Events Date of Peak 1/16 3/23 9/1 Peak Gage Height (feet) 2.42 17.63 5.09 Peak Volume (ac-ft) 0.0 297.2 1.3 Hydrograph of peak 2023 impoundment event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 153 Percent Spillway Capacity 0.0 1.2 0.0 Cave Buttes Dam Pool, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 1 0 --80 339 128 0 0 0 1 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 154 ------0 0 0 564 18 564 0 MIN --0 0 0 0 Cave Buttes Dam Pool, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 1.9 1.9 2 1.9 1.9 3 1.9 1.9 4 1.9 1.9 5 1.9 1.9 6 1.9 1.9 7 1.9 1.9 8 1.9 1.9 9 1.9 1.9 10 1.9 1.9 11 1.9 1.9 12 1.9 1.9 13 1.9 1.9 14 1.9 1.9 15 1.9 1.9 16 1.9 1.9 17 1.9 1.9 18 1.9 1.9 19 1.9 1.9 20 1.9 1.9 21 1.9 1.9 22 1.9 1.9 23 1.9 1.9 24 1.9 1.9 25 1.9 1.9 26 1.9 1.9 27 1.9 1.9 28 1.9 1.9 29 1.9 1.9 30 1.9 1.9 31 1.9 --MEAN 1.9 1.9 MAX 1.9 1.9 MIN 1.9 1.9 WTR YR 2023 MEAN DEC 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.99 Daily Mean Values JAN FEB MAR APR 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 2.2 1.9 1.9 1.9 2.0 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 2.0 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 1.9 1.9 1.9 1.9 8.6 1.9 1.9 1.9 18.3 1.9 1.9 1.9 11.5 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 --1.9 1.9 1.9 --1.9 --1.9 1.9 3.0 1.9 2.4 1.9 21.6 1.9 1.9 1.9 1.9 1.9 MAX 21.63 MIN 1.90 FCDMC Annual Surface Water Report, Water Year 2023 Page 155 MAY 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 JUN 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 JUL 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 AUG 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 SEP 2.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 --1.9 5.1 1.9 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 31.17 Years | 11,385 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 2023 Page 156 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 2023 Page 157 2015 2020 2025 WY2023 Events Date of Peak 3/23 9/1 Peak Gage Height 2.91 2.12 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 158 Peak Discharge (cfs) 71 40 Cave Buttes Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 2 0 MEAN 0 0 MAX 2 0 MIN 0 0 AC_FT 5 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 8 --21 40 23 0 0 0 0 0 94 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 159 ------0 0 0 0 0 83 3 72 0 165 0 MAX --0 0 0 0 0 72 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --8 0 40 0 17 186 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 14.60 Years | 5,331 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 2023 Page 160 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 2023 Page 161 2020 2025 WY2023 Events Date of Peak 1/1 1/17 3/1 3/16 3/22 9/1 Peak Gage Height 1.89 4.26 2.77 2.69 6.80 1.54 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 162 Peak Discharge (cfs) 72 585 223 189 2072 54 Cave Creek at Ashdale RS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 29 27 Daily Mean Values FEB MAR APR 20 79 61 47 36 43 42 31 41 23 154 32 MAY JUN JUL AUG SEP 11 --0 0 0 0 0 --0 0 11 0 0 0 0 52 44 0 0 0 0 1 22 AC_FT 2838 1 66 143 512 35 0 0 0 0 0 1431 456 15 585 0 904 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 163 ------0 0 0 0 0 963 31 2072 0 1911 4 MAX --0 0 0 0 0 2072 0 0 0 0 0 MIN 0 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 30.29 Years | 11,064 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 2023 Page 164 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 2023 Page 165 2015 2020 2025 WY2023 Events Date of Peak 1/2 1/17 3/2 3/11 3/16 3/22 8/31 Peak Gage Height (feet) 4.08 6.47 5.28 4.01 5.01 9.07 3.23 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 166 Peak Discharge (cfs) 94 951 391 83 306 2887 14 Cave Creek at Spur Cross, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL Daily Mean Values FEB MAR APR MAY 9 43 25 10 9 249 24 9 9 174 23 9 9 116 22 9 9 57 21 8 9 36 22 8 8 28 21 8 8 22 21 8 8 20 20 8 8 18 19 7 8 25 19 7 8 21 18 7 1 8 17 18 7 4 10 15 18 6 7 17 17 17 4 16 14 138 17 3 304 12 55 17 3 72 12 34 16 3 38 11 28 16 2 25 11 22 15 2 19 11 212 15 2 16 14 939 15 1 14 30 171 14 12 21 90 13 12 17 60 13 11 19 46 12 10 23 38 12 10 22 34 11 10 --30 11 10 --28 10 10 --26 --0 788 350 2812 517 131 0 25 13 91 17 4 0 951 35 2887 25 10 0 0 7 14 10 0 0 1562 695 5577 1026 259 4598 MEAN 13 MAX 2887 MIN DEC JAN 6 81 38 18 13 9 7 6 4 2 2 FCDMC Annual Surface Water Report, Water Year 2023 Page 167 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 14 7 0 0 0 0 0 1 AC_FT 9121 0 AUG SEP 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 20.35 Years | 7,431 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 2023 Page 168 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 2023 Page 169 2020 2025 WY2023 Events Date of Peak 10/16 1/1 1/17 2/14 2/23 3/2 3/11 3/16 3/22 8/31 9/13 Peak Gage Height (feet) 1.73 1.78 2.95 1.23 1.21 2.20 2.00 2.05 6.91 4.51 2.51 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 170 Peak Discharge (cfs) 24 28 227 6 5 91 49 57 3715 650 150 Cave Creek, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5 17 18 19 20 21 22 23 24 25 26 27 1 28 29 30 1 31 --TOTAL 5 6 MEAN 0 0 MAX 24 1 MIN 0 0 AC_FT 10 12 WTR YR 2023 TOTAL DEC 1 1 1 1 1 2 2 1 1 1 18 1 2 0 36 1147 Daily Mean Values FEB MAR APR MAY 5 7 49 7 33 7 24 7 12 6 9 6 9 6 8 6 7 4 7 1 11 2 9 1 7 1 5 4 1 2 30 64 13 10 9 7 8 6 7 5 47 5 469 4 3 35 4 3 16 1 1 12 10 9 9 --9 --8 --8 --122 7 896 64 0 4 0 29 2 0 227 6 3715 8 0 0 0 0 0 0 242 15 1778 126 0 MEAN 3 MAX 3715 MIN JAN 3 3 4 2 FCDMC Annual Surface Water Report, Water Year 2023 Page 171 JUN JUL AUG SEP 5 --- 2 4 --0 0 0 0 0 0 17 --0 17 11 0 1 0 0 650 187 0 0 0 0 34 22 AC_FT 2275 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 29.35 Years | 10,719 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 2023 Page 172 Watershed Map Cave Creek near Cave Creek - water year peaks 18,000 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 2023 Page 173 WY2023 Events Date of Peak 1/17 2/14 3/2 3/22 9/1 Peak Gage Height (feet) 1.57 0.55 1.07 3.54 1.50 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 174 Peak Discharge (cfs) 356 0 192 1569 330 Cave Creek near Cave Creek, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 3 24 8 83 16 476 5 0 0 0 0 0 614 83 3 356 0 164 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 175 ------0 0 0 0 0 529 17 1569 0 1049 2 MAX --0 0 0 0 0 1569 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --3 0 330 0 6 1219 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 9.47 Years | 3,457 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 2023 Page 176 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 2023 Page 177 2025 WY2023 Events Date of Peak 3/23 9/1 Peak Gage Height 0.79 0.47 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 178 Peak Discharge (cfs) 108 15 Cave Creek at CAP, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 3 37 92 62 0 0 0 0 0 194 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 179 ------0 0 0 0 0 191 6 108 0 378 1 MAX --0 0 0 0 0 108 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --3 0 15 0 6 384 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 1.58 Years | 577 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 2023 Page 180 Watershed Map Cave Creek near Union Hills Drive - water year peaks 250 245 Discharge (cfs) 240 235 230 225 220 215 210 2020 2025 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 181 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 3/23 2.38 224 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 182 Cave Creek near Union Hills Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 884 190 182 74 0 0 0 0 0 446 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 183 ------0 0 0 0 0 446 14 224 0 884 1 MAX --0 0 0 0 0 224 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Cave Creek at Cactus Road, ID #11807 Site Data LOCATION Near Cactus Road and 25th Avenue DRAINAGE AREA 33.6 mi2 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 32.26 Years | 11,784 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 2023 Page 184 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 2023 Page 185 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/28 1/1 1/16 2/16 3/2 3/16 3/24 Peak Gage Height (feet) 7.55 3.41 3.98 1.16 1.61 7.67 1.76 7.52 Hydrograph of peak WY 2023 flow event, 03/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 186 Peak Discharge (cfs) 201 91 114 13 24 203 28 200 Cave Creek at Cactus Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 28 16 121 17 2 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 151 0 MEAN 5 0 MAX 201 0 MIN 0 0 AC_FT 300 0 WTR YR 2023 TOTAL DEC JAN 27 40 1 Daily Mean Values FEB MAR APR 21 122 7 2 7 5 1 4 1 MAY JUN JUL 1 11 AUG SEP 1 2 92 192 103 4 1 33 1 36 1 91 0 70 832 83 3 114 0 164 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 187 ------8 0 24 0 16 553 18 203 0 1097 2 MAX --0 0 0 0 0 203 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 1 0 7 0 2 --0 0 0 0 0 1650 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 22.32 Years | 8,153 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 2023 Page 188 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 2023 Page 189 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 9/2 1.07 34 Hydrograph of peak WY 2023 flow event, 09/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 190 Centennial Wash near Aguila, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 5 4 0 0 0 0 0 9 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 191 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 34 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --9 0 34 0 18 18 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 25.04 Years | 9,146 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 2023 Page 192 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 2023 Page 193 2015 2020 2025 WY2023 Events Date of Peak 10/4 10/16 1/2 1/18 3/16 Peak Gage Height (feet) 2.67 1.84 2.87 0.78 1.91 Hydrograph of peak WY 2023 flow event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 194 Peak Discharge (cfs) 463 155 658 23 163 Centennial Wash at Wenden, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 70 --2 232 --3 11 252 --4 176 2 --5 --6 --7 --8 --9 --10 --11 --12 --13 --14 --15 --16 46 --46 --17 --33 --18 5 --1 --19 1 ----20 ----21 --22 --23 --24 --25 --26 --27 --28 --29 ----30 ----31 ----------TOTAL 233 0 0 561 0 80 0 0 0 0 0 --MEAN 8 0 0 18 0 3 0 0 0 0 0 --MAX 463 0 0 658 0 163 0 0 0 0 0 --MIN 0 0 0 0 0 0 0 0 0 0 0 --AC_FT 462 0 0 1112 0 158 0 0 0 0 0 --WTR YR 2023 TOTAL 873 MEAN 2 MAX 658 MIN 0 AC_FT 1732 *station temporarily removed on September 1st due to construction on bridge FCDMC Annual Surface Water Report, Water Year 2023 Page 195 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 20.23 Years | 7,389 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 2023 Page 196 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 2023 Page 197 2020 2025 WY2023 Events Date of Peak 10/15 9/1 Peak Gage Height 0.87 0.85 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 198 Peak Discharge (cfs) 25 24 Centennial Levee, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 16 9 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 18 0 MEAN 1 0 MAX 25 0 MIN 0 0 AC_FT 35 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 27 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 199 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 25 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG 0 0 0 0 0 SEP 10 --10 0 24 0 20 54 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 33.64 Years | 12,287 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 2023 Page 200 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 2023 Page 201 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/16 13.00 4315 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 202 Centennial Railroad, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 126 16 1328 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1455 0 MEAN 47 0 MAX 4315 0 MIN 0 0 AC_FT 2885 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 1455 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 203 ------0 0 0 0 0 4 0 0 0 0 0 MAX --0 0 0 0 0 4315 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 2885 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 11.00 Years | 4,017 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 2023 Page 204 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 2023 Page 205 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 10/15 2.42 175 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 206 Centennial Tributary at Dobbins Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 11 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 11 0 MEAN 0 0 MAX 175 0 MIN 0 0 AC_FT 21 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 12 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 207 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 175 MAY 0 0 0 0 0 MIN JUN JUL AUG SEP --0 0 0 0 0 1 0 1 0 0 0 22 0 0 0 2 AC_FT --0 0 0 0 0 24 0 Cline Creek, ID #66007 Site Data LOCATION Located about 1 mile north of Circle Mountain Road just off 12 th 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 2023 Page 208 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 2023 Page 209 2020 2025 WY2023 Events Date of Peak 10/16 1/1 3/11 3/22 Peak Gage Height (feet) 0.79 0.62 1.08 0.89 Hydrograph of peak WY 2023 flow event, 03/11/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 210 Peak Discharge (cfs) 28 20 44 33 Cline Creek, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 2 4 5 6 7 8 9 10 11 12 13 14 15 16 8 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 8 2 MEAN 0 0 MAX 28 12 MIN 0 0 AC_FT 16 5 WTR YR 2023 TOTAL DEC JAN 8 3 Daily Mean Values FEB MAR APR 3 5 MAY JUN JUL AUG SEP 1 --0 0 0 0 0 1 --0 1 1 0 0 0 0 12 0 0 0 0 0 2 3 AC_FT 141 4 4 6 4 2 7 2 8 1 1 0 5 0 2 71 26 1 20 0 51 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 211 ------11 0 16 0 22 0 20 1 44 0 41 MAX --0 0 0 0 0 44 0 0 0 0 0 MIN 0 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 29.26 Years | 10,686 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 2023 Page 212 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 2023 Page 213 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 9/12 0.45 21 Hydrograph of peak WY 2023 flow event, 09/12/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 214 Colter Channel, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 1 0 0 0 0 0 1 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 215 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 21 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --1 0 21 0 3 3 Columbus Wash, ID #40807 Site Data LOCATION Located at the east edge of Yuma County in the Hyder Valley DRAINAGE AREA 21.6 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 24.03 Years | 8,775 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 2023 Page 216 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 2023 Page 217 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 218 Peak Discharge (cfs) Columbus Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 219 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 22.61 Years | 8,258 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 2023 Page 220 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 2023 Page 221 2020 2025 WY2023 Events Date of Peak 3/1 9/1 Peak Gage Height (feet) 1.07 1.23 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 222 Peak Discharge (cfs) 36 57 Copper Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 8 Daily Mean Values FEB MAR APR 5 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 223 ------0 0 0 0 0 0 5 0 36 0 9 MAX --0 0 0 0 0 57 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG 0 0 0 0 0 SEP 3 --3 0 57 0 6 16 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 27.79 Years | 10,149 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 2023 Page 224 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 2023 Page 225 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 4/10 3.05 23.8 4.4 Hydrograph of peak 2023 impoundment event, 04/10/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 226 Crossroads Park, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 --2 --3 --4 5 6 7 8 9 10 ----11 17 12 4 13 14 15 16 17 18 19 20 21 --22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 0 17 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 2 Daily Mean Values FEB MAR APR 13 14 15 16 17 19 18 18 21 23 23 23 23 22 21 20 20 20 18 16 17 17 18 17 16 15 15 14 --14 --14 --8 --0 0 0 18 0 0 12 24 0 0 0 13 MAX 24 MIN 0 JAN FCDMC Annual Surface Water Report, Water Year 2023 Page 227 MAY 13 5 JUN JUL AUG SEP 5 1 13 0 --0 0 0 0 0 0 0 0 0 --0 11 0 Crossroads Park Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 --1.3 2 --1.3 3 --1.3 4 1.3 1.3 5 1.3 1.3 6 1.3 1.3 7 1.3 1.3 8 1.3 1.3 9 1.3 1.3 10 ----11 0.0 2.3 12 1.3 1.6 13 1.3 1.3 14 1.3 1.3 15 1.3 1.3 16 1.3 1.3 17 1.3 1.3 18 1.3 1.3 19 1.3 1.3 20 1.3 1.3 21 --1.3 22 1.3 1.3 23 1.3 1.3 24 1.3 1.3 25 1.3 1.3 26 1.3 1.3 27 1.3 1.3 28 1.3 1.3 29 1.3 1.3 30 1.3 1.3 31 1.3 --MEAN 1.3 1.4 MAX 1.3 2.3 MIN 1.3 1.3 WTR YR 2023 MEAN DEC 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.42 JAN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MAX Daily Mean Values FEB MAR APR 1.3 1.3 1.7 1.3 1.3 1.8 1.3 1.3 2.0 1.3 1.3 2.1 1.3 1.3 2.3 1.3 1.3 2.5 1.3 1.3 2.4 1.3 1.3 2.4 1.3 1.3 2.7 1.3 1.3 2.9 1.3 1.3 3.0 1.3 1.3 3.0 1.3 1.3 2.9 1.3 1.3 2.9 1.3 1.3 2.7 1.3 1.3 2.6 1.3 1.3 2.6 1.3 1.3 2.6 1.3 1.3 2.4 1.3 1.3 2.1 1.3 1.3 2.3 1.3 1.3 2.3 1.3 1.3 2.4 1.3 1.3 2.3 1.3 0.0 2.0 1.3 1.3 2.0 1.3 1.3 1.9 1.3 1.3 1.8 --1.3 1.7 --1.3 1.7 --1.4 --1.3 1.3 2.3 1.3 1.6 3.0 1.3 1.3 1.6 3.05 MIN 1.33 FCDMC Annual Surface Water Report, Water Year 2023 Page 228 MAY 1.7 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.7 1.3 JUN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 JUL 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 AUG 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 SEP 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 --1.3 1.5 1.3 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 21.38 Years | 7,810 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 2023 Page 229 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 2023 Page 230 2020 2025 WY2023 Events Date of Peak 10/15 3/15 Peak Gage Height (feet) 3.25 1.88 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 231 Peak Discharge (cfs) 448 24 Cruff Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 20 0 MEAN 1 0 MAX 448 0 MIN 0 0 AC_FT 40 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 21 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 232 ------0 0 0 0 0 0 0 0 24 0 1 MAX --0 0 0 0 0 448 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 41 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 15.90 Years | 5,806 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 2023 Page 233 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 2023 Page 234 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 1/1 1.60 441 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 235 Daggs Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 8 0 0 0 0 0 8 Daily Mean Values FEB MAR APR 8 0 441 0 16 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 236 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 441 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 16 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 3.96 Years | 1,445 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 2023 Page 237 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 2023 Page 238 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 9/1 3.28 3607 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 239 Deadman Wash at SR303L, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 257 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 240 ------0 0 0 0 0 1 0 0 0 0 0 MAX --0 0 0 0 0 3607 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG 0 0 0 0 0 SEP 257 --257 9 3607 0 510 510 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 23.78 Years | 8,684 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 2023 Page 241 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 2023 Page 242 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 2.30 255 Hydrograph of peak WY 2023 flow event, 10/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 243 Delaney Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16 76 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 90 0 MEAN 3 0 MAX 255 0 MIN 0 0 AC_FT 179 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 90 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 244 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 255 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 179 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 17.58 Years | 6,442 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 | 07/23/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 245 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 2023 Page 246 2020 2025 WY2023 Events Date of Peak 1/1 1/17 3/1 8/31 Peak Gage Height (feet) 1.42 0.84 0.94 4.89 Hydrograph of peak WY 2023 flow event, 08/31/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 247 Peak Discharge (cfs) 47 21 25 313 Desert Hills Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 2 Daily Mean Values FEB MAR APR 2 MAY JUN JUL AUG SEP 1 --0 0 0 0 0 13 0 13 0 0 0 313 0 0 0 25 AC_FT --1 0 19 0 2 35 1 0 0 0 0 0 17 2 0 47 0 5 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 248 ------0 0 0 0 0 0 2 0 25 0 3 MAX --0 0 0 0 0 313 0 0 0 0 0 MIN 0 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 35.09 Years | 12,816 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 2023 Page 249 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 2023 Page 250 2010 2015 2020 2025 WY2023 Events Date of Peak 10/15 1/1 3/1 Peak Gage Height (feet) 0.96 0.96 1.98 Peak Volume (ac-ft) 0.0 0.0 0.1 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 251 Percent Spillway Capacity 0.0 0.0 0.1 Dreamy Draw Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2 16 3 17 3 18 1 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 9 0 MEAN 0 0 MAX 7 0 MIN 0 0 AC_FT 18 0 WTR YR 2023 TOTAL DEC JAN 1 2 Daily Mean Values FEB MAR APR 2 3 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 49 2 2 3 1 6 0 3 0 12 25 3 0 7 0 5 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 252 ------0 0 0 0 0 0 7 0 23 0 15 MAX --0 0 0 0 0 23 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Dreamy Draw Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 253 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Dreamy Draw Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.3 0.1 16 0.4 0.1 17 0.3 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 1.0 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.4 0.2 0.1 0.1 0.5 0.1 0.13 JAN 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.0 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.3 0.1 0.1 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.1 2.0 0.1 0.1 0.1 0.1 1.98 MIN 0.12 FCDMC Annual Surface Water Report, Water Year 2023 Page 254 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 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 27.11 Years | 9,901 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 2023 Page 255 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 2023 Page 256 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 257 Peak Discharge (cfs) Dysart Drain at LAFB, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 258 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Dysart Drain at El Mirage Road, ID #85707 Site Data LOCATION On El Mirage Road about mid-way between Glendale and Northern Avenues DRAINAGE AREA 34.7 mi2 STREAM TYPE Engineered Channel JURISDICTION Glendale, Arizona WATERSHED White Tanks A SECTION/TOWNSHIP/RANGE S016 T2N R1W LATITUDE N 33° 32’ 37.1” | +33.54370 LONGITUDE W 112° 19’ 26.6” | -112.32399 ARIZONA STATE PLANE E 575902 | N 925591 USGS QUAD SHEET El Mirage 7.5-Minute STREAMGAGE INSTALLATION DATE 03/07/1997 – WY 1997 PERIOD OF AVAILABLE DATA RECORD 03/07/1997 – Current LENGTH OF AVAILABLE DATA RECORD 26.57 Years | 9,704 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 1,054.287 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 836 cfs | 5.76 feet | 07/26/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 259 Watershed Map Dysart Drain at El Mirage Road - water year peaks 900 800 Discharge (cfs) 700 600 500 400 300 200 100 0 1995 2000 2005 2010 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 260 2015 2020 2025 WY2023 Events Date of Peak 10/15 11/10 12/28 3/1 3/15 3/22 Peak Gage Height (feet) 2.13 0.87 1.55 1.88 1.93 1.72 NOTE: There is a continual base flow at this location, the last two Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 261 Peak Discharge (cfs) 338 69 191 271 284 231 Dysart Drain at El Mirage Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 17 10 55 11 45 12 3 13 26 14 16 15 113 16 94 17 34 18 21 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 305 120 MEAN 10 4 MAX 338 69 MIN 0 0 AC_FT 605 238 WTR YR 2023 TOTAL DEC JAN 63 26 Daily Mean Values FEB MAR APR 68 55 5 MAY JUN JUL --------12 AUG SEP --- ----8 51 74 4 ------------------------- 24 68 6 27 69 13 14 55 184 6 191 0 366 1161 89 3 103 0 176 MEAN *Station removed September 19th FCDMC Annual Surface Water Report, Water Year 2023 Page 262 4 23 26 24 27 ------103 4 33 0 205 349 11 284 0 692 3 MAX --0 7 0 0 0 486 0 0 0 14 486 MIN --0 0 0 0 0 0 --------------------------0 4 0 0 0 0 0 35 0 0 0 0 0 8 0 AC_FT 2303 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 29.58 Years | 10,805 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 2023 Page 263 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 2023 Page 264 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 265 Percent Spillway Capacity East Fork Cave Creek Basin #1, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 1 15 2 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 3 4 5 0 0 0 0 0 2 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 5 1 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 3 MEAN 0 MAX 5 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2023 Page 266 East Fork Cave Creek Basin #1, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 Daily Mean Values JAN FEB MAR APR ----- 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 267 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 East Fork Cave Creek Basin #1, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.2 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.23 JAN ----0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.6 0.7 0.2 0.2 0.2 0.2 0.65 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2023 Page 268 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.4 0.2 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 7.97 Years | 2,909 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 2023 Page 269 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 2023 Page 270 2021 2022 2023 2024 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 271 Percent Spillway Capacity EFCC Basin #3A, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 272 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 EFCC Basin #3A, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 273 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 EFCC Basin #3A, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.8 0.8 2 0.8 0.8 3 0.8 0.8 4 0.8 0.8 5 0.8 0.8 6 0.8 0.8 7 0.8 0.8 8 0.8 0.8 9 0.8 0.8 10 0.8 0.8 11 0.8 0.8 12 0.8 0.8 13 0.8 0.8 14 0.8 0.8 15 0.8 0.8 16 0.8 0.8 17 0.8 0.8 18 0.8 0.8 19 0.8 0.8 20 0.8 0.8 21 0.8 0.8 22 0.8 0.8 23 0.8 0.8 24 0.8 0.8 25 0.8 0.8 26 0.8 0.8 27 0.8 0.8 28 0.8 0.8 29 0.8 0.8 30 0.8 0.8 31 0.8 --MEAN 0.8 0.8 MAX 0.8 0.8 MIN 0.8 0.8 WTR YR 2023 MEAN DEC 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.80 JAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MAX Daily Mean Values FEB MAR APR 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 --0.8 0.8 --0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.80 MIN 0.80 FCDMC Annual Surface Water Report, Water Year 2023 Page 274 MAY 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 JUN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 JUL 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 AUG 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 SEP 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 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 29.05 Years | 10,610 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 2023 Page 275 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 2023 Page 276 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 277 Percent Spillway Capacity East Fork Cave Creek Basin #3B, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 ----- --- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 278 ------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 East Fork Cave Creek Basin #3B, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 --0 0 0 ----- --- 0 0 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 279 ------0 0 0 0 0 0 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 0 0 East Fork Cave Creek Basin #3B, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.1 0.1 16 0.2 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.2 0.1 MAX 0.5 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.15 JAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.47 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2023 Page 280 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 ----0.0 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 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 29.70 Years | 10,848 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 2023 Page 281 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 2023 Page 282 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/28 1/1 1/16 3/1 3/15 9/13 Peak Gage Height (feet) 1.22 1.30 1.59 0.82 2.00 1.44 1.52 Peak Volume (ac-ft) 0.5 0.5 0.7 0.3 0.9 0.6 0.6 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 283 Percent Spillway Capacity 0.7 0.8 1.1 0.4 1.7 0.9 1.0 East Fork Cave Creek Basin #4, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 1 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 2 0 0 2 Daily Mean Values FEB MAR APR 2 0 0 6 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 284 ------0 0 0 0 0 0 2 0 27 0 3 MAX --0 0 0 0 0 27 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 4 0 0 4 East Fork Cave Creek Basin #4, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 1 0 0 JAN Daily Mean Values FEB MAR APR 0 1 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 285 ------0 0 0 1 0 1 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 1 0 East Fork Cave Creek Basin #4, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.3 0.3 2 0.3 0.3 3 0.3 0.3 4 0.3 0.3 5 0.3 0.3 6 0.3 0.3 7 0.3 0.3 8 0.3 0.3 9 0.3 0.3 10 0.3 0.3 11 0.3 0.3 12 0.3 0.3 13 0.3 0.3 14 0.3 0.3 15 0.3 0.3 16 0.4 0.3 17 0.3 0.3 18 0.3 0.3 19 0.3 0.3 20 0.3 0.3 21 0.3 0.3 22 0.3 0.3 23 0.3 0.3 24 0.3 0.3 25 0.3 0.3 26 0.3 0.3 27 0.3 0.3 28 0.3 0.3 29 0.3 0.3 30 0.3 0.3 31 0.3 --MEAN 0.3 0.3 MAX 1.2 0.3 MIN 0.3 0.3 WTR YR 2023 MEAN DEC 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 1.3 0.3 0.30 JAN 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.6 0.3 MAX Daily Mean Values FEB MAR APR 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 --0.3 0.3 --0.3 --0.3 0.3 0.3 0.3 2.0 0.3 0.3 0.3 0.3 2.00 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2023 Page 286 MAY 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 JUN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 JUL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 AUG 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.7 0.3 SEP 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 1.5 0.3 East Fork Cave Creek near 7th Avenue, ID #8507 Site Data LOCATION In Moon Valley Park, near Coral Gable Drive and 7 th Avenue DRAINAGE AREA 14.1 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 26.40 Years | 9,642 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,341.59 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 *PT moved on 08/06/2023 changing base gage height after the move. FCDMC Annual Surface Water Report, Water Year 2023 Page 287 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 2023 Page 288 2015 2020 2025 WY2023 Events Date of Peak 10/11 10/16 12/28 1/1 1/16 2/15 3/1 3/15 3/22 9/13 Peak Gage Height (feet) 0.54 3.33 1.57 1.57 0.78 0.34 2.53 1.21 0.48 1.71 Peak Discharge (cfs) 33 1239 237 237 48 21 672 137 30 82 Hydrograph of peak WY 2023 flow event, 10/16/2022 Flood Flow Frequency FEMA FIS 2-year 5-year 10-year 5,500 FCDMC Annual Surface Water Report, Water Year 2023 Page 289 20-year 50-year 100-year 8,200 9,400 East Fork Cave Creek near 7th Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 32 16 105 17 2 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 139 0 MEAN 4 0 MAX 1239 0 MIN 0 0 AC_FT 277 0 WTR YR 2023 TOTAL DEC 5 32 7 JAN 39 27 2 Daily Mean Values FEB MAR APR 59 27 MAY JUN JUL AUG SEP 8 24 13 8 1 8 21 11 3 43 11 97 3 237 0 193 487 105 3 237 0 209 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 290 ------9 0 21 0 18 ----------- 128 4 672 0 255 1 MAX --0 0 0 0 0 1239 0 0 0 0 0 MIN --0 0 0 0 0 0 --0 0 8 0 0 0 0 --82 0 0 0 0 0 16 AC_FT 966 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 17.62 Years | 6,436 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 2023 Page 291 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 2023 Page 292 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 2.23 46 Hydrograph of peak WY 2023 flow event, 10/15/2022 Flood Flow Frequency Flood Flow Frequency FEMA Flood Insurance Study 2-year 5-year 10-year 2,835 FCDMC Annual Surface Water Report, Water Year 2023 Page 293 20-year 50-year 100-year 4,747 6,023 El Mirage Road Drain, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 10 16 21 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 31 0 MEAN 1 0 MAX 46 0 MIN 0 0 AC_FT 62 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 31 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 294 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 46 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 62 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 33.08 Years | 12,081 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 2023 Page 295 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 2023 Page 296 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/4 12/28 1/1 1/16 2/15 3/2 3/16 8/18 9/1 9/13 Peak Gage Height (feet) 1.26 0.60 -2.21 0.60 -2.37 -0.54 0.27 0.52 -0.46 -1.66 0.12 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 297 Peak Discharge (cfs) 140 43 0 43 0 8 32 40 9 0 28 EMF at Broadway Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 36 16 41 17 17 18 3 19 1 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 98 0 MEAN 3 0 MAX 140 0 MIN 0 0 AC_FT 194 0 WTR YR 2023 TOTAL DEC 2 35 20 5 1 JAN 12 31 11 2 Daily Mean Values FEB MAR APR 1 30 15 3 1 5 63 2 43 0 126 364 56 2 43 0 111 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 298 ------5 0 8 0 10 MAY JUN JUL SEP 11 14 1 2 36 19 3 109 4 40 0 217 1 MAX AUG 1 3 --0 0 0 0 0 140 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 4 0 9 0 9 --27 1 28 0 53 721 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 9.46 Years | 3,456 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 2023 Page 299 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 2023 Page 300 2025 WY2023 Events Date of Peak 10/16 1/2 3/2 Peak Gage Height 0.97 0.87 0.69 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 301 Peak Discharge (cfs) 106 56 10 EMF below Powerline Floodway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 11 16 27 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 38 0 MEAN 1 0 MAX 106 0 MIN 0 0 AC_FT 75 0 WTR YR 2023 TOTAL DEC JAN 3 10 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 126 3 9 10 0 27 0 19 64 13 0 56 0 26 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 302 ------0 0 0 0 0 0 3 0 10 0 7 MAX --0 0 0 0 0 106 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 34.70 Years | 12,674 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 3,162 cfs | 4.96 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2023 Page 303 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 2023 Page 304 2010 2015 2020 2025 WY2023 Events Date of Peak 10/7 10/16 12/4 12/28 1/2 1/16 2/15 2/21 2/26 3/2 3/16 4/9 4/24 5/21 6/11 6/22 7/29 8/1 8/8 8/18 9/1 Peak Gage Height (feet) 0.90 2.98 2.30 0.00 2.10 0.00 0.30 -0.12 0.05 1.78 0.95 1.30 1.23 -0.10 -0.05 0.08 -0.02 0.53 0.78 -0.04 0.76 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 305 Peak Discharge (cfs) 203 1339 862 37 740 37 72 28 42 569 219 348 319 30 33 44 36 113 170 34 165 EMF at Queen Creek Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 6 7 98 8 9 9 10 11 12 13 14 15 75 2 16 987 17 123 18 5 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1297 8 MEAN 42 0 MAX 1339 12 MIN 0 0 AC_FT 2572 15 WTR YR 2023 TOTAL DEC 19 617 198 134 119 64 JAN 50 522 71 8 Daily Mean Values FEB MAR APR MAY JUN JUL 341 20 AUG 51 20 7 4 28 239 31 9 8 7 31 12 14 62 30 11 SEP 82 64 3 3 11 --- 10 21 26 2 3 197 8 13 11 5 2 39 196 1 15 23 21 17 37 29 4 17 2 8 3 1162 676 37 22 862 740 0 0 2305 1341 4992 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 306 --------58 568 559 81 2 18 19 3 72 569 348 30 0 0 0 0 115 1127 1108 161 14 MAX 1339 MIN 12 20 25 18 --142 5 44 0 281 --75 190 177 2 6 6 36 170 165 0 0 0 149 377 351 0 AC_FT 9902 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 34.64 Years | 12,651 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 2023 Page 307 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 2023 Page 308 2010 2015 2020 2025 WY2023 Events Date of Peak 10/12 10/16 12/5 1/3 1/18 3/3 Peak Gage Height (feet) 1.37 1.77 1.42 2.69 2.69 1.32 Hydrograph of peak WY 2023 flow event, 01/03/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 309 Peak Discharge (cfs) 428 605 449 1120 1120 408 EMF at Arizona Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 31 12 144 13 14 15 94 16 360 17 338 18 313 19 172 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1453 0 MEAN 47 0 MAX 605 0 MIN 0 0 AC_FT 2882 0 WTR YR 2023 TOTAL DEC 128 365 301 285 267 250 161 JAN Daily Mean Values FEB MAR APR 85 736 557 355 197 MAY JUN JUL AUG SEP 94 278 25 747 573 359 215 1758 3849 57 124 449 1120 0 0 3486 7635 7432 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 310 ------0 372 0 12 0 408 0 0 0 738 20 MAX --0 0 0 0 0 1120 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 14741 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 30.42 Years | 11,111 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 2023 Page 311 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 312 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event, No runoff events occurred in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 313 Peak Discharge (cfs) Estrella Fan, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN ------- Daily Mean Values FEB MAR APR --------------------- MAY JUN JUL AUG SEP --- --- --------- ----------- --- ----0 0 0 0 0 0 0 0 0 0 0 MEAN --------------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 *Station was intermittently down between March 4th to April 7th. No events were missed FCDMC Annual Surface Water Report, Water Year 2023 Page 314 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 29.22 Years | 10,673 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 2023 Page 315 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 2023 Page 316 2015 2020 2025 WY2023 Events Date of Peak 3/15 5/19 Peak Gage Height (feet) 1.47 1.28 Hydrograph of peak WY 2023 flow event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 317 Peak Discharge (cfs) 177 113 Flying E Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 561 8 3 25 ----- 0 0 0 0 0 283 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 318 ------0 0 0 0 0 11 0 177 0 22 1 MAX --0 272 0 9 0 113 0 0 0 539 177 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 21.65 Years | 7,908 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 2023 Page 319 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 2023 Page 320 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 321 Peak Discharge (cfs) Ford Canyon Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 322 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 21.55 Years | 7,871 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 2023 Page 323 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 2023 Page 324 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 325 Peak Discharge (cfs) Fourth of July Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG --- SEP ----- ----- ----- --- ----------- ----- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 326 ------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 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 27.79 Years | 10,148 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 2023 Page 327 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 2023 Page 328 2015 2020 2025 WY2023 Events Date of Peak 10/8 10/15 10/23 11/10 11/28 12/4 12/29 1/2 1/16 1/24 Peak Gage Height (feet) 3.39 6.90 3.04 3.97 4.09 7.56 5.14 7.61 5.74 3.42 Peak Volume (ac-ft) 0.6 8.8 0.4 1.1 1.2 11.7 2.9 11.9 4.5 0.6 Hydrograph of peak 2023 impoundment event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 329 Percent Spillway Capacity 0.9 6.2 0.4 1.7 1.9 7.2 4.3 7.2 4.4 0.9 Freestone Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 1 11 12 13 14 15 3 16 1 17 18 19 20 21 22 23 24 25 26 27 28 1 29 1 30 1 31 --MEAN 0 0 MAX 9 1 MIN 0 0 WTR YR 2023 MEAN DEC 3 11 6 JAN 4 11 6 Daily Mean Values FEB MAR APR 1 3 2 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 1 1 2 1 1 12 0 0 1 12 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 330 ------0 3 0 12 0 0 0 MIN --0 0 0 0 Freestone Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2.1 2.1 2 2.3 2.1 3 2.2 2.1 4 2.1 2.1 5 2.1 2.1 6 2.1 2.1 7 2.2 2.1 8 3.3 2.8 9 3.1 3.2 10 2.4 3.8 11 2.5 3.0 12 2.4 2.1 13 2.2 2.1 14 2.1 2.1 15 4.1 2.1 16 3.6 2.1 17 3.2 2.1 18 2.6 2.1 19 2.1 2.1 20 2.1 2.1 21 2.1 2.1 22 2.1 2.1 23 2.4 2.1 24 2.5 2.1 25 2.1 2.1 26 2.1 2.1 27 2.1 2.4 28 2.1 3.6 29 2.1 3.8 30 2.1 3.9 31 2.1 --MEAN 2.4 2.4 MAX 6.9 4.1 MIN 2.1 2.1 WTR YR 2023 MEAN DEC 2.6 2.1 4.0 7.4 5.5 2.5 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 4.3 3.6 3.0 2.1 2.6 7.6 2.1 2.27 JAN 4.8 7.5 5.5 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 3.4 5.1 4.0 2.1 2.1 2.1 2.1 2.1 2.1 2.6 2.3 2.1 2.1 2.1 2.1 2.1 2.1 2.7 7.6 2.1 MAX Daily Mean Values FEB MAR APR 2.3 2.1 2.1 2.9 2.1 2.1 2.9 2.1 2.1 2.9 2.1 2.1 2.9 2.1 2.1 2.9 2.1 2.1 2.9 2.1 2.1 2.6 2.1 2.1 2.4 2.1 2.1 2.2 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.7 2.1 2.1 3.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.3 2.1 2.1 2.9 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 2.1 --2.1 2.1 --2.1 --2.4 2.1 2.1 5.2 2.1 2.1 2.1 2.1 2.1 7.61 MIN 2.10 FCDMC Annual Surface Water Report, Water Year 2023 Page 331 MAY 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 JUN 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 2.1 2.1 JUL 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 AUG 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 0.0 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 SEP 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 --2.1 2.1 2.1 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 7.12 Years | 2,602 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 2023 Page 332 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 2023 Page 333 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 8/31 1.66 535 Hydrograph of peak WY 2023 flow event, 08/31/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 334 Galloway Wash at Galloway Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 4 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 335 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 535 MAY 0 0 0 0 0 MIN JUN JUL AUG SEP --0 0 0 0 0 4 0 4 0 0 0 535 0 0 0 8 AC_FT --0 0 0 0 0 8 0 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 28.47 Years | 10,399 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 2023 Page 336 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 2023 Page 337 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/6 1/4 1/9 1/11 1/12 1/19 Peak Gage Height 1.45 2.37 2.82 0.88 0.77 1.07 3.76 Hydrograph of peak WY 2023 flow event, 01/19/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 338 Peak Discharge (cfs) 1410 1873 2159 1048 979 1181 3489 Gila River at Olberg Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 184 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 184 0 MEAN 6 0 MAX 1410 0 MIN 0 0 AC_FT 366 0 WTR YR 2023 TOTAL DEC 1514 1007 JAN Daily Mean Values FEB MAR APR MAY JUN JUL --0 0 0 0 0 ----0 0 0 0 0 0 AC_FT 1390 2125 1240 166 158 149 154 206 121 AUG ------------------- SEP 1199 2364 3170 2203 96 2521 14742 81 476 1873 3489 0 0 5000 29241 17448 MEAN ------0 0 0 0 0 48 0 0 0 0 0 MAX --0 0 0 0 0 3489 0 0 0 0 0 MIN *USGS maintained a gage at this site prior to October 1, 1998 (09478350) FCDMC Annual Surface Water Report, Water Year 2023 Page 339 --0 0 0 0 0 0 0 0 0 0 34607 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 28.48 Years | 10,402 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 2023 Page 340 Watershed for Gila River at Maricopa Road FCDMC Annual Surface Water Report, Water Year 2023 Page 341 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event, No runoff recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 342 Peak Discharge (cfs) Gila River at Maricopa Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 2023 Page 343 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 24.79 Years | 9,055 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 2023 Page 344 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 2023 Page 345 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 3/23 8.39 40647 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 346 Gila River at 116th Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 15467 Daily Mean Values FEB MAR APR MAY 2582 2583 50 2599 50 3131 2549 105 2812 221 3707 3300 2930 2960 1861 2177 31 2370 489 2380 878 1749 2650 1334 6051 1302 9707 716 6599 304 6415 92 6756 8759 16930 23171 9376 2508 1947 1740 --- 1933 --- 2307 --- 2561 --0 0 11090 43439 326 0 0 3578 1448 11 0 0 40647 4266 392 0 0 0 0 0 0 0219982 86160 646 MEAN 424 MAX 40647 MIN JAN FCDMC Annual Surface Water Report, Water Year 2023 Page 347 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 306788 0 AUG SEP 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 30.83 Years | 11,260 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 2023 Page 348 Watershed Map Gila River at Estrella Parkway - water year peaks 80,000 70,000 Discharge (cfs) 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 2023 Page 349 2015 2020 2025 WY2023 Events Date of Peak 3/24 5/6 Peak Gage Height (feet) 15.31 5.67 Hydrograph of peak WY 2023 flow event, 03/24/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 350 Peak Discharge (cfs) 56396 529 Gila River at Estrella Parkway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 29148 Daily Mean Values FEB MAR APR MAY 6680 6680 6656 7085 6200 7 6572 352 8662 137 8276 44 7281 24 7616 6 5008 5228 5898 83 6065 691 4515 2579 3234 6242 3116 14861 2061 10742 667 10608 377 10879 216 12990 137 21825 30 39124 20142 6347 4703 4202 --- 4597 --- 5532 --- 6505 --0 0 18265 10826 569 0 0 5892 3609 18 0 0 56396 9470 529 0 0 0 0 0 0 0362281214733 1129 MEAN 799 MAX 56396 MIN JAN FCDMC Annual Surface Water Report, Water Year 2023 Page 351 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 578143 0 AUG SEP 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 26.80 Years | 9,789 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 2023 Page 352 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 2023 Page 353 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 354 Percent Spillway Capacity Golden Eagle Park Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 355 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Golden Eagle Park Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 356 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Golden Eagle Park Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 3.0 3.0 2 3.0 3.0 3 3.0 3.0 4 3.0 3.0 5 3.0 3.0 6 3.0 3.0 7 3.0 3.0 8 3.0 3.0 9 3.0 3.0 10 3.0 3.0 11 3.0 3.0 12 3.0 3.0 13 3.0 3.0 14 3.0 3.0 15 3.0 3.0 16 3.0 3.0 17 3.0 3.0 18 3.0 3.0 19 3.0 3.0 20 3.0 3.0 21 3.0 3.0 22 3.0 3.0 23 3.0 3.0 24 3.0 3.0 25 3.0 3.0 26 3.0 3.0 27 3.0 3.0 28 3.0 3.0 29 3.0 3.0 30 3.0 3.0 31 3.0 --MEAN 3.0 3.0 MAX 3.0 3.0 MIN 3.0 3.0 WTR YR 2023 MEAN DEC 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.05 JAN 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 MAX Daily Mean Values FEB MAR APR 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 --3.0 3.0 --3.0 3.0 --3.0 --3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.05 MIN 3.05 FCDMC Annual Surface Water Report, Water Year 2023 Page 357 MAY 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 JUN 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 --3.0 3.0 3.0 JUL 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 AUG 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 SEP 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 --3.0 3.0 3.0 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 7.99 Years | 2,917 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 2023 Page 358 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 2023 Page 359 2025 WY2023 Events Date of Peak 10/1 12/28 3/15 9/2 Peak Gage Height (feet) 1.29 1.03 0.95 1.30 Peak Volume (ac-ft) 3.9 3.0 2.7 3.9 Hydrograph of peak 2023 impoundment event, 10/01/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 360 Percent Spillway Capacity 10.4 8.1 7.1 9.8 Grand Avenue at 27th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 2 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 2 0 1 7 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 361 ------0 0 0 0 0 0 0 0 1 0 1 MAX MAY --0 0 0 0 0 2 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG 0 0 2 0 1 SEP 2 2 1 --6 0 2 0 11 13 Grand Avenue at 27th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 4 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 3 3 3 1 1 1 2 1 1 2 2 1 1 0 3 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 362 ------0 0 0 4 0 3 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 0 0 1 0 3 0 --0 4 0 Grand Avenue at 27th Avenue Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.5 0.5 2 0.5 0.5 3 0.5 0.5 4 0.5 0.5 5 0.5 0.5 6 0.5 0.5 7 0.5 0.5 8 0.5 0.5 9 0.5 0.5 10 0.5 0.5 11 0.5 0.5 12 0.5 0.5 13 0.5 0.5 14 0.5 0.5 15 0.5 0.5 16 0.5 0.5 17 0.5 0.5 18 0.5 0.5 19 0.5 0.5 20 0.5 0.5 21 0.5 0.5 22 0.5 0.5 23 0.5 0.5 24 0.5 0.5 25 0.5 0.5 26 0.5 0.5 27 0.5 0.5 28 0.5 0.5 29 0.5 0.5 30 0.5 0.5 31 0.5 --MEAN 0.5 0.5 MAX 1.3 0.5 MIN 0.5 0.5 WTR YR 2023 MEAN DEC 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.6 0.6 0.5 0.5 1.0 0.5 0.46 JAN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 MAX Daily Mean Values FEB MAR APR 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 0.8 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 0.5 --0.5 0.5 --0.5 --0.5 0.5 0.5 0.5 0.9 0.5 0.5 0.5 0.5 1.30 MIN 0.45 FCDMC Annual Surface Water Report, Water Year 2023 Page 363 MAY 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 JUN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 JUL 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 AUG 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 1.2 0.5 SEP 1.2 1.1 0.9 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --0.5 1.3 0.5 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 18.20 Years | 6,646 Days GAPS IN RECORD 10/01/2022 – 11/01/2022 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 2023 Page 364 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 2023 Page 365 2020 2025 WY2023 Events Date of Peak 10/15 12/05 1/3 3/16 9/13 Peak Gage Height 0.82 0.34 0.34 0.43 0.63 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 366 Peak Discharge (cfs) 269 75 75 117 184 Granite Reef Diversion, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 36 16 28 17 60 18 108 19 18 20 21 22 --23 24 25 26 27 28 29 30 31 --TOTAL 251 0 MEAN 8 0 MAX 269 0 MIN 0 0 AC_FT 497 0 WTR YR 2023 TOTAL DEC JAN 1 2 30 23 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 20 4 --- 15 15 11 6 4 3 13 1 23 1 75 0 46 399 56 2 75 0 111 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 367 ------0 0 0 0 0 18 1 117 0 35 1 MAX --0 0 0 0 0 269 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --51 2 184 0 102 791 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 16.27 Years | 5,941 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 2023 Page 368 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 2023 Page 369 2020 2025 WY2023 Events Date of Peak 10/15 12/3 12/12 12/28 1/1 1/16 2/14 3/1 3/15 7/26 8/27 9/1 9/12 Peak Gage Height 4.80 3.10 2.04 2.59 2.19 1.89 2.34 3.66 4.33 4.31 2.41 2.84 5.08 Hydrograph of peak WY 2023 flow event, 09/12/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 370 Peak Discharge (cfs) 44 20 11 16 12 9 13 28 37 37 14 18 46 Granite Reef Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 2 9 10 11 12 13 14 15 7 16 4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 13 0 MEAN 0 0 MAX 44 0 MIN 0 0 AC_FT 25 0 WTR YR 2023 TOTAL DEC JAN 4 2 Daily Mean Values FEB MAR APR 3 1 MAY JUN JUL AUG SEP 4 4 6 1 4 8 1 1 3 5 3 1 2 2 2 14 0 20 0 27 78 10 0 12 0 21 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 371 ------3 0 13 0 5 0 13 0 37 0 25 MAX --0 0 0 0 0 49 0 0 0 0 0 MIN --0 0 0 0 0 0 2 1 2 2 --6 4 15 0 0 1 37 18 49 0 0 0 13 8 30 AC_FT 154 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 29.53 Years | 10,784 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 2023 Page 372 Watershed Map Greene Wash at SR84 - 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 2023 Page 373 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 09/01 0.22 184 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 374 Greene Wash at SR84, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 41 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 375 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 184 MAY 0 0 0 0 0 MIN JUN JUL AUG SEP 40 --0 0 0 0 0 2 0 2 0 0 0 168 0 0 0 3 AC_FT --40 1 184 0 79 82 0 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 25.15 Years | 9,186 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 2023 Page 376 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 2023 Page 377 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 1.36 232 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 378 Guadalupe Road Channel, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 16 20 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 39 0 MEAN 1 0 MAX 232 0 MIN 0 0 AC_FT 77 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 39 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 379 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 232 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 77 Guadalupe FRS, ID #68207 Site Data LOCATION Located west of I-10 and south of Baseline Road DRAINAGE AREA 1.74 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 34.26 Years | 12,512 Days GAPS IN RECORD 05/30/2023 – 10/31/2023 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 2023 Page 380 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 381 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2023 impoundment event No impoundments recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 382 Peak Volume (ac-ft) Percent Spillway Capacity Guadalupe FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 MAY --0 0 0 0 0 0 MIN JUN ------------------------------------------------------------------------- JUL AUG ------------------------------------------------------------------------------------------------------------------------------------------------0 AC_FT SEP ------------------------------------------------------------------------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 2023 Page 383 Guadalupe FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 384 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY --0 0 0 JUN --------------------------------------------------------------------- JUL --------------------------------------------------------------------- AUG --------------------------------------------------------------------- SEP --------------------------------------------------------------------- Guadalupe FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.3 0.3 2 0.3 0.3 3 0.3 0.3 4 0.3 0.3 5 0.3 0.3 6 0.3 0.3 7 0.3 0.3 8 0.3 0.3 9 0.3 0.3 10 0.3 0.3 11 0.3 0.3 12 0.3 0.3 13 0.3 0.3 14 0.3 0.3 15 0.3 0.3 16 0.3 0.3 17 0.3 0.3 18 0.3 0.3 19 0.3 0.3 20 0.3 0.3 21 0.3 0.3 22 0.3 0.3 23 0.3 0.3 24 0.3 0.3 25 0.3 0.3 26 0.3 0.3 27 0.3 0.3 28 0.3 0.3 29 0.3 0.3 30 0.3 0.3 31 0.3 --MEAN 0.3 0.3 MAX 0.3 0.3 MIN 0.3 0.3 WTR YR 2023 MEAN DEC 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.26 JAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX Daily Mean Values FEB MAR APR 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 --0.3 0.3 --0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.26 MIN 0.26 FCDMC Annual Surface Water Report, Water Year 2023 Page 385 MAY 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 JUN --------------------------------------------------------------------- JUL --------------------------------------------------------------------- AUG --------------------------------------------------------------------- SEP --------------------------------------------------------------------- Harquahala FRS, ID #26007 Site Data LOCATION Located northeast of I-10 and Salome Highway interchange DRAINAGE AREA 105.3 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 29.59 Years | 10,806 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 2023 Page 386 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 2023 Page 387 2015 2020 2025 WY2023 Events Date of Peak 10/16 1/1 9/1 Peak Gage Height (feet) 7.02 1.60 0.91 Peak Volume (ac-ft) 1.9 0.1 0.0 Hydrograph of peak WY 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 388 Percent Spillway Capacity 0.0 0.0 0.0 Harquahala FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 389 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Harquahala FRS, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 17 1 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 2 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 390 ------0 0 0 2 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Harquahala FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.4 1.1 2 0.4 1.0 3 0.4 1.0 4 0.4 0.9 5 0.4 0.8 6 0.4 0.8 7 0.4 0.7 8 0.4 0.7 9 0.4 0.6 10 0.4 0.5 11 0.4 0.4 12 0.4 0.4 13 0.4 0.4 14 0.4 0.4 15 1.0 0.4 16 6.1 0.4 17 4.8 0.4 18 4.1 0.4 19 3.6 0.4 20 3.2 0.4 21 2.9 0.4 22 2.6 0.4 23 2.3 0.4 24 2.0 0.4 25 1.9 0.4 26 1.7 0.4 27 1.6 0.4 28 1.5 0.4 29 1.3 0.4 30 1.3 0.4 31 1.2 --MEAN 1.6 0.5 MAX 7.0 1.1 MIN 0.4 0.4 WTR YR 2023 MEAN DEC 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.51 JAN 0.9 1.4 1.2 1.0 0.8 0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 1.6 0.4 MAX Daily Mean Values FEB MAR APR 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 --0.4 0.4 --0.4 0.4 --0.4 --0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 7.02 MIN 0.38 FCDMC Annual Surface Water Report, Water Year 2023 Page 391 MAY 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 JUN 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 --0.4 0.4 0.4 JUL 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 AUG 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.9 0.4 SEP 0.8 0.8 0.8 0.7 0.6 0.6 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 --0.5 0.9 0.4 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 29.24 Years | 10,679 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 2023 Page 392 Watershed Map Hartman Wash - water year peaks 4,000 3,500 Discharge (cfs) 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 2023 Page 393 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 3/15 1.47 251 Hydrograph of peak WY 2023 flow event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 394 Hartman Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 12 6 ----- 0 0 0 0 0 6 0 0 5 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 395 ------0 0 0 0 0 6 0 251 0 12 0 MAX --0 0 0 0 0 251 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 31.84 Years | 11,631 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 2023 Page 396 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 397 WY2023 Events Date of Peak Peak Gage Height (feet) none Hydrograph of peak 2023 flow event, No runoff recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 398 Peak Discharge (cfs) Hassayampa River at Wagoner, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP ----- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 399 ------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 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 31.96 Years | 11,673 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 2023 Page 400 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 2023 Page 401 2000 2025 WY2023 Events Date of Peak 1/16 3/2 3/16 3/22 Peak Gage Height (feet) 5.64 3.98 4.47 10.26 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 402 Peak Discharge (cfs) 1241 127 331 7113 Hassayampa River at Box Canyon, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR 1 43 37 36 41 26 12 MAY JUN JUL AUG SEP 5 29 326 548 85 0 993 0 32 0 1208 0 0 0 1970 5691 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 403 35 270 74 38 23 1 712 3141 145 63 ------0 4698 0 152 0 7113 0 0 0 9319 16 MAX ----- --0 0 0 0 0 7113 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 11289 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 29.55 Years | 10,793 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 2023 Page 404 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 2023 Page 405 2015 2020 2025 WY2023 Events Date of Peak 1/17 3/22 5/19 Peak Gage Height (feet) 2.80 4.29 1.47 *max value unknown repeater damaged during event Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 406 Peak Discharge (cfs) 5214 15907 935* Hassayampa River at US60, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL Daily Mean Values FEB MAR APR MAY 1184 899 1360 842 354 1547 792 640 1552 772 869 1560 744 1033 1674 709 929 1510 834 1210 1497 615 1235 1394 469 1303 1370 353 1276 1358 214 58 1753 1409 163 1718 1510 128 1596 1465 111 261 1770 1437 96 1107 1884 1414 123 2384 1810 1287 113 941 1606 1208 104 1650 1197 313 1611 1101 --1989 1169 --6931 1172 299 5554 1131 320 2235 1070 270 2154 1063 1457 1014 1491 967 1322 919 --- 1419 909 --- 1330 941 --- 1182 --58 4844 0 51310 38391 11470 2 156 0 1655 1280 370 191 5214 0 15907 1915 935 0 0 0 0 831 0 116 9609 0101771 76147 22750 10607 MEAN 291 MAX 15907 MIN DEC JAN 110 41 FCDMC Annual Surface Water Report, Water Year 2023 Page 407 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 210394 0 AUG SEP 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 27.40 Years | 10,008 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 408ight 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 2023 Page 408 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 2023 Page 409 2015 2020 2025 WY2023 Events Date of Peak 10/5 10/15 1/1 1/17 3/1 3/15 3/22 Peak Gage Height (feet) 8.41 7.73 9.02 9.73 9.02 9.81 12.25 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 410 Peak Discharge (cfs) 484 118 1076 1908 1075 2011 7903 Hassayampa River near Morristown, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 16 6 6 7 8 9 10 11 12 13 14 15 3 16 4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 29 0 MEAN 1 0 MAX 484 0 MIN 0 0 AC_FT 58 0 WTR YR 2023 TOTAL DEC JAN 59 45 Daily Mean Values FEB MAR APR 241 95 868 90 218 951 230 62 0 1061 0 34 0 1908 0 0 0 2105 10383 MEAN 7 244 4713 1472 477 230 140 89 56 --32 --20 --15 0 9293 0 300 0 7903 0 0 0 18431 28 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 411 --0 0 0 0 0 7903 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP --0 0 0 0 0 0 0 0 0 0 20594 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 28.89 Years | 10,553 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 2023 Page 412 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 2023 Page 413 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) 10/15 2.44 1/17 2.53 3/25* 2.93 *PT did not properly capture event. Likely much larger Hydrograph of peak WY 2023 flow event, 03/25/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 414 Peak Discharge (cfs) 627 694 950 Hassayampa River at I-10, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 38 16 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 54 0 MEAN 2 0 MAX 627 0 MIN 0 0 AC_FT 107 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 3183 ------- 196 74 398 432 297 153 ------0 0 0 0 0 1605 196 6 694 0 388 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 415 ------0 0 0 0 0 1355 44 951 0 2688 4 MAX --0 0 0 0 0 951 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 26.78 Years | 9,783 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 2023 Page 416 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 417 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 418 Percent Spillway Capacity Hesperus Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 419 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Hesperus Dam, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 420 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Hesperus Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.8 0.8 2 0.8 0.8 3 0.8 0.8 4 0.8 0.8 5 0.8 0.8 6 0.8 0.8 7 0.8 0.8 8 0.8 0.8 9 0.8 0.8 10 --0.8 11 0.8 0.8 12 0.8 0.8 13 0.0 0.8 14 0.8 0.8 15 0.8 0.8 16 0.8 0.8 17 0.8 0.8 18 0.8 0.8 19 0.8 0.8 20 0.8 0.8 21 0.8 0.8 22 0.8 0.8 23 0.8 0.8 24 0.8 0.8 25 0.8 0.8 26 0.8 0.8 27 0.8 0.8 28 0.8 0.8 29 0.8 0.8 30 0.8 0.8 31 0.8 --MEAN 0.8 0.8 MAX 0.8 0.8 MIN 0.8 0.8 WTR YR 2023 MEAN DEC 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.79 JAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MAX Daily Mean Values FEB MAR APR 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 --0.8 0.8 --0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.79 MIN 0.79 FCDMC Annual Surface Water Report, Water Year 2023 Page 421 MAY 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 JUN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 JUL 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 AUG 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 SEP 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 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 31.51 Years | 11,510 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 2023 Page 422 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 2023 Page 423 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/4 12/28 1/1 1/16 3/1 3/15 Peak Gage Height (feet) 2.00 0.29 1.12 1.02 0.29 1.95 0.73 Peak Discharge (cfs) 299 27 149 134 27 290 89 Hydrograph of peak WY 2023 flow event, 10/16/2023 Flood Flow Frequency FEMA FIS, Flood Flow Frequency 2-year 5-year 10-year 2,000 FCDMC Annual Surface Water Report, Water Year 2023 Page 424 20-year 50-year 100-year 3,500 6,000 Indian Bend Wash at Sweetwater Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 42 16 52 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 95 0 MEAN 3 0 MAX 299 0 MIN 0 0 AC_FT 188 0 WTR YR 2023 TOTAL DEC JAN 29 1 Daily Mean Values FEB MAR APR 34 17 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 511 7 8 1 6 25 3 4 27 1 44 1 149 0 86 258 33 1 134 0 66 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 425 ------0 0 0 0 0 86 3 290 0 171 1 MAX --0 0 0 0 0 299 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 25.31 Years | 9,245 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 1,344.26 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 2023 Page 426 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 2023 Page 427 2015 2020 2025 WY2023 Events Date of Peak 10/16 11/3 12/3 12/28 1/1 1/16 2/16 3/1 3/15 3/22 9/13 Peak Gage Height (feet) 1.55 0.78 1.03 1.53 1.43 1.03 1.63 1.95 1.30 1.05 1.33 Hydrograph of peak WY 2023 flow event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 428 Peak Discharge (cfs) 336 23 61 321 255 61 400 672 180 67 81 Indian Bend Wash at Shea Boulevard, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 1 4 5 6 7 8 9 10 11 12 13 14 15 58 16 101 17 3 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 162 1 MEAN 5 0 MAX 336 23 MIN 0 0 AC_FT 322 3 WTR YR 2023 TOTAL DEC JAN 60 21 Daily Mean Values FEB MAR APR 96 81 MAY JUN JUL AUG SEP 2 17 36 1 2 13 31 8 2 16 16 52 19 95 2 151 5 321 0 300 734 120 4 255 0 239 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 429 ------18 1 400 0 36 264 9 672 0 524 2 MAX --0 0 0 0 0 672 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --17 1 42 0 33 1457 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 31.51 Years | 11,510 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 2023 Page 430 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 2023 Page 431 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/28 1/2 1/17 1/21 3/2 3/16 7/26 Peak Gage Height (feet) 1.67 0.58 1.38 0.55 0.48 1.28 0.65 0.88 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 432 Peak Discharge (cfs) 37 7 20 7 6 18 8 11 Indian Bend Wash near Indian Bend Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 --6 --7 8 9 10 11 12 13 14 15 1 16 18 17 8 18 1 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 28 0 MEAN 1 0 MAX 37 0 MIN 0 0 AC_FT 56 0 WTR YR 2023 TOTAL DEC 6 2 1 1 JAN 3 14 9 6 6 7 6 6 6 6 6 6 6 5 Daily Mean Values FEB MAR APR 1 12 9 6 7 7 6 6 6 6 3 MAY JUN JUL AUG SEP --1 6 2 4 2 2 1 3 5 1 5 2 3 3 16 1 8 0 31 239 1 1 107 3 20 0 212 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 433 ------0 0 0 0 0 76 2 18 0 151 1 MAX --0 0 0 0 0 37 0 0 0 0 0 MIN --0 0 0 0 0 0 8 0 11 0 16 AC_FT 4 0 5 0 7 --1 0 6 0 2 475 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 25.85 Years | 9,442 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 3,482 cfs | 4.03 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2023 Page 434 Watershed Map Indian Bend Wash at McDonald Drive - water year peaks 4,000 3,500 Discharge (cfs) 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 2023 Page 435 2015 2020 2025 WY2023 Events Date of Peak 10/16 1/2 3/2 3/16 7/26 Peak Gage Height (feet) 0.36 0.41 0.56 -0.22 0.26 Hydrograph of peak WY 2023 flow event, 03/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 436 Peak Discharge (cfs) 305 329 412 86 255 Indian Bend Wash at McDonald Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 16 162 17 30 18 4 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 200 0 MEAN 6 0 MAX 305 0 MIN 0 0 AC_FT 396 0 WTR YR 2023 TOTAL DEC 1 12 3 JAN 10 243 85 22 21 22 23 20 7 Daily Mean Values FEB MAR APR 2 232 105 22 19 25 29 18 18 5 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 2463 1 --2 38 4 6 2 6 34 4 3 24 1 20 0 48 1242 460 15 383 0 913 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 437 ------0 0 0 0 0 517 17 412 0 1026 3 MAX --0 0 0 0 0 412 0 0 0 0 0 MIN --0 0 0 0 0 40 1 255 0 79 0 AC_FT 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 25.85 Years | 9,441 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 2023 Page 438 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 2023 Page 439 2010 2015 2020 2025 WY2023 Events Date of Peak 10/16 10/25 11/4 12/4 1/2 2/16 2/26 3/1 3/15 7/27 9/13 Peak Gage Height (feet) 2.41 1.66 1.61 1.44 1.27 1.57 1.37 1.95 1.24 1.74 1.62 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 440 Peak Discharge (cfs) 746 332 309 238 173 289 210 290 164 370 311 Indian Bend Wash at Indian School Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 106 16 499 17 179 18 19 20 21 22 23 24 61 25 129 26 27 28 29 30 31 --TOTAL 974 0 MEAN 31 0 MAX 746 0 MIN 0 0 AC_FT 1932 0 WTR YR 2023 TOTAL DEC 7 57 104 65 3 36 94 98 JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG 93 SEP 79 52 56 24 94 4 92 464 15 266 0 919 1931 93 3 258 0 185 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 441 ------118 4 289 0 234 5 0 0 0 0 0 MAX --0 0 0 0 0 746 0 0 0 0 0 MIN --0 0 0 0 0 95 3 370 0 189 0 AC_FT 0 0 0 0 0 --187 6 311 0 371 3831 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 35.89 Years | 11,109 Days GAPS IN RECORD 12/04/2021 – 12/28/2022 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 2023 Page 442 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 2023 Page 443 2010 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/4 3/2 3/16 Peak Gage Height (feet) 1.01 0.77 1.32 1.38 Hydrograph of peak WY 2023 flow event, 03/16/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 444 Peak Discharge (cfs) 125 69 220 240 Indian Bend Wash near McKellips Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 16 80 17 69 18 8 19 20 21 22 23 --24 25 26 27 28 29 30 31 --TOTAL 174 0 MEAN 6 0 MAX 125 0 MIN 0 0 AC_FT 344 0 WTR YR 2023 TOTAL DEC 1 50 22 72 2 69 0 144 751 Daily Mean Values FEB MAR APR 14 110 89 32 8 7 7 7 6 6 --5 --6 --5 26 --129 20 4 4 3 3 3 3 2 JAN 4 0 0 0 8 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 445 ------0 0 0 0 0 502 16 240 0 995 2 MAX --0 0 0 0 0 240 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 1490 --- 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 29.45 Years | 10,755 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 2023 Page 446 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 2023 Page 447 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/16 0.70 13 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 448 Indian Bend Wash Interceptor Channel, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1 0 MEAN 0 0 MAX 13 0 MIN 0 0 AC_FT 2 0 WTR YR 2023 TOTAL DEC JAN 1 2 1 0 0 0 0 0 8 Daily Mean Values FEB MAR APR 4 0 3 0 9 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 449 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 15 1 ------0 0 0 0 0 0 2 0 2 0 4 MAX --0 0 0 0 0 13 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 6 0 1 AC_FT 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 22.92 Years | 8,370 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 2023 Page 450 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 2023 Page 451 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 452 Peak Discharge (cfs) Jackrabbit Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 453 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 25.85 Years | 9,442 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 2023 Page 454 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 2023 Page 455 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 456 Peak Discharge (cfs) Lake Margherite, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 ------- --------- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 457 ------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 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 16.90 Years | 6,172 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 2023 Page 458 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 2023 Page 459 2020 2025 WY2023 Events Date of Peak 10/16 12/5 1/19 2/16 3/2 3/16 Peak Gage Height (feet) 4.81 1.82 1.42 1.57 2.39 2.37 Peak Volume (ac-ft) 10.5 0.6 0.3 0.4 2.4 2.4 Hydrograph of peak 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 460 Percent Spillway Capacity 8.3 0.6 0.3 0.3 1.9 1.9 Laveen Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 12 17 11 18 9 19 6 20 2 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 43 0 MEAN 1 0 MAX 12 0 MIN 0 0 AC_FT 85 0 WTR YR 2023 TOTAL DEC 4 3 1 Daily Mean Values FEB MAR APR 1 1 7 7 5 4 2 1 JAN MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 252 1 7 7 7 5 3 1 1 1 3 6 4 1 22 1 7 0 44 127 2 0 1 0 3 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 461 ------1 0 1 0 1 60 2 8 0 118 0 MAX --0 0 0 0 0 12 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Laveen Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 16 9 17 6 18 3 19 1 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 1 0 MAX 10 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 2 1 1 1 2 2 1 1 1 0 1 0 0 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 462 ------0 0 0 10 0 2 0 MIN --0 0 0 0 Laveen Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 1.1 0.2 16 4.4 0.2 17 3.6 0.2 18 2.7 0.2 19 2.0 0.2 20 1.6 0.2 21 1.2 0.2 22 0.9 0.2 23 0.7 0.2 24 0.6 0.2 25 0.5 0.2 26 0.5 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.8 0.2 MAX 4.8 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.5 1.7 1.6 1.4 1.1 0.9 0.8 0.7 0.7 0.7 0.8 0.7 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.3 0.2 0.2 0.2 0.2 1.3 1.9 1.7 1.5 0.8 2.1 0.2 0.51 JAN 1.3 1.5 1.4 1.3 1.2 1.0 0.9 0.8 0.7 0.7 0.7 0.6 0.6 0.6 0.6 1.0 1.2 1.3 1.3 1.2 1.2 1.1 1.0 1.0 1.0 0.9 0.8 0.8 0.8 0.7 0.7 1.0 1.6 0.4 MAX Daily Mean Values FEB MAR APR 0.7 0.9 0.6 0.7 2.2 0.6 0.6 2.0 0.6 0.6 1.9 0.7 0.6 1.7 0.6 0.6 1.6 0.5 0.6 1.4 0.5 0.6 1.3 0.4 0.6 1.2 0.3 0.6 1.1 0.2 0.5 0.9 0.2 0.5 0.8 0.2 0.7 0.8 0.2 0.9 0.7 0.2 1.3 0.9 0.2 1.4 2.2 0.2 1.3 2.2 0.2 1.1 2.0 0.2 0.9 1.8 0.2 0.8 1.7 0.2 0.7 1.6 0.2 0.8 1.5 0.2 0.8 1.4 0.2 0.7 1.3 0.2 0.7 1.2 0.2 0.7 1.0 0.2 0.7 1.0 0.2 0.7 0.8 0.2 --0.7 0.2 --0.7 0.2 --0.7 --0.8 1.3 0.3 1.6 2.4 0.9 0.3 0.5 0.2 4.81 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 463 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.5 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 15.88 Years | 5,799 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 2023 Page 464 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 2023 Page 465 2020 2025 WY2023 Events Date of Peak 10/16 12/4 1/2 1/16 3/2 3/16 Peak Gage Height (feet) 2.20 3.52 3.81 3.03 2.49 2.44 Peak Volume (ac-ft) 0.0 1.5 5.8 0.1 0.1 0.1 Hydrograph of peak 2023 impoundment event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 466 Percent Spillway Capacity 0.0 0.2 0.2 0.1 0.0 0.0 Magma FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 1 0 MEAN 0 0 MAX 8 0 MIN 0 0 AC_FT 3 0 WTR YR 2023 TOTAL DEC JAN 3 19 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 99 4 12 2 5 12 0 24 0 24 50 29 1 28 0 58 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 467 4 ------0 0 0 0 0 0 7 0 16 0 14 MAX --0 0 0 0 0 28 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Magma FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN 1 10 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 2 0 14 0 0 0 19 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 468 ------0 0 0 19 0 0 0 MIN --0 0 0 0 Magma FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.2 0.1 16 1.2 0.1 17 0.8 0.1 18 0.3 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.2 0.1 MAX 2.2 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.2 0.4 2.5 0.8 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.3 3.5 0.1 0.19 JAN 0.9 3.2 1.0 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.8 1.9 0.7 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.4 3.8 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.2 0.1 0.1 1.2 0.1 0.1 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 0.1 1.2 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.2 0.1 0.1 2.5 0.1 0.1 0.1 0.1 3.81 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2023 Page 469 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 Martinez Wash, 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 28.86 Years | 10,539 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 2023 Page 470 Watershed Map Martinez Wash - 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 2023 Page 471 2015 2020 2025 WY2023 Events Date of Peak 1/1 1/17 5/19 Peak Gage Height (feet) 3.23 3.41 6.61 Hydrograph of peak WY 2023 flow event, 05/19/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 472 Peak Discharge (cfs) 93 99 2447 Martinez Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 3 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 84 8 31 0 0 0 0 0 42 11 0 99 0 23 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 473 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 31 0 1 0 2447 0 0 0 61 2447 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 19.37 Years | 7,075 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 2023 Page 474 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 2023 Page 475 2020 2025 WY2023 Events Date of Peak 2/15 2/17 Peak Gage Height (feet) 1.36 0.82 Peak Discharge (cfs) 438 149 Hydrograph of peak WY 2023 flow event, 02/15/2023, 02/17/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 476 McDowell Mountain Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 12 0 MIN 0 0 AC_FT 1 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 94 1 2 4 26 12 1 2 0 12 0 4 47 1 0 8 0 3 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 477 ------44 2 438 0 86 0 0 0 0 0 0 MAX --0 0 0 0 0 438 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 14.58 Years | 5,324 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 2023 Page 478 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 2023 Page 479 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 10/15 0.83 48 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 480 McMicken Dam at Bell Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 7 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 7 0 MEAN 0 0 MAX 48 0 MIN 0 0 AC_FT 15 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 15 ------------------------------- 0 0 0 0 0 7 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 481 ------0 0 1 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 48 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 35.62 Years | 13,009 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 2023 Page 482 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 2023 Page 483 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak 2023 impoundment event There were no impoundments recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 484 Percent Spillway Capacity McMicken Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 485 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 McMicken Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 486 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 McMicken Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 1.6 1.6 2 1.6 1.6 3 1.6 1.6 4 1.6 1.6 5 1.6 1.6 6 1.6 1.6 7 1.6 1.6 8 1.6 1.6 9 1.6 1.6 10 1.6 1.6 11 1.6 1.6 12 1.6 1.6 13 1.6 1.6 14 1.6 1.6 15 1.6 1.6 16 1.6 1.6 17 1.6 1.6 18 1.6 1.6 19 1.6 1.6 20 1.6 1.6 21 1.6 1.6 22 1.6 1.6 23 1.6 1.6 24 1.6 1.6 25 1.6 1.6 26 1.6 1.6 27 1.6 1.6 28 1.6 1.6 29 1.6 1.6 30 1.6 1.6 31 1.6 --MEAN 1.6 1.6 MAX 1.6 1.6 MIN 1.6 1.6 WTR YR 2023 MEAN DEC 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.60 JAN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 MAX Daily Mean Values FEB MAR APR 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 --1.6 1.6 --1.6 1.6 --1.6 --1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.60 MIN 1.60 FCDMC Annual Surface Water Report, Water Year 2023 Page 487 MAY 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 JUN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 --1.6 1.6 1.6 JUL 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 AUG 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 SEP 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 --1.6 1.6 1.6 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 31.37 Years | 11,457 Days GAPS IN RECORD None 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 2023 Page 488 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 2023 Page 489 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 490 Peak Discharge (cfs) McMicken Floodway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 491 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 8.06 Years | 2,943 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 2023 Page 492 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 493 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event, No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 494 Percent Spillway Capacity Mineral Canyon Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 495 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Mineral Canyon Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 496 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Mineral Canyon Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2.0 2.0 2 2.0 2.0 3 2.0 2.0 4 2.0 2.0 5 2.0 2.0 6 2.0 2.0 7 2.0 2.0 8 2.0 2.0 9 2.0 2.0 10 2.0 2.0 11 2.0 2.0 12 2.0 2.0 13 2.0 2.0 14 2.0 2.0 15 2.0 2.0 16 2.0 2.0 17 2.0 2.0 18 2.0 2.0 19 2.0 2.0 20 2.0 2.0 21 2.0 2.0 22 2.0 2.0 23 2.0 2.0 24 2.0 2.0 25 2.0 2.0 26 2.0 2.0 27 2.0 2.0 28 2.0 2.0 29 2.0 2.0 30 2.0 2.0 31 2.0 --MEAN 2.0 2.0 MAX 2.0 2.0 MIN 2.0 2.0 WTR YR 2023 MEAN DEC 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.00 JAN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 MAX Daily Mean Values FEB MAR APR 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 --2.0 2.0 --2.0 2.0 --2.0 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.00 MIN 2.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 497 MAY 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 JUN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 --2.0 2.0 2.0 JUL 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 AUG 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 SEP 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 --2.0 2.0 2.0 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 18.20 Years | 6,647 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 2023 Page 498 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 2023 Page 499 2020 2025 WY2023 Events Date of Peak 1/17 3/1 3/16 3/22 Peak Gage Height (feet) 3.06 2.23 2.66 5.80 Hydrograph of peak WY 2023 flow event, 03/22/2023 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 2023 Page 500 Peak Discharge (cfs) 3114 1550 2250 9661 New River Fire, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR 115 155 124 MAY JUN JUL AUG SEP --199 1015 303 1084 3209 760 0 1213 0 39 0 3114 0 0 0 2406 6964 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 501 ------0 5751 0 186 0 9661 0 0 0 11406 19 MAX --0 0 0 0 0 9661 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 13813 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 3.80 Years | 1,389 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 2023 Page 502 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 2023 Page 503 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 9/1 ~5.22 ~4572* *discharge was approximated based on crest gage elevations gathered after event. The event was missed by Radar unit. Hydrograph of peak WY 2023 flow event, 09/01/2023 Event missed by device. FCDMC Annual Surface Water Report, Water Year 2023 Page 504 New River at SR303L, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ------0 0 0 0 0 0 0 0 0 0 0 MAX Note: Events likely missed by Radar unit FCDMC Annual Surface Water Report, Water Year 2023 Page 505 MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 35.09 Years | 12,815 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 2023 Page 506 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 2023 Page 507 2010 2015 2020 2025 WY2023 Events Date of Peak 1/17 3/4 3/16 3/22 9/1 Peak Gage Height (feet) 5.71 5.16 5.10 16.75 4.14 Peak Volume (ac-ft) 198.7 159.0 162.4 1854.1 109.2 Hydrograph of peak WY 2023 impoundment event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 508 Percent Spillway Capacity 0.4 0.3 0.3 4.2 0.3 New River Dam Pool, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG 0 0 0 --0 0 0 0 0 0 0 0 0 SEP 40 32 110 134 82 74 72 73 122 58 7 1060 1062 274 37 0 0 0 9 8 199 0 MAX ------0 0 0 1854 FCDMC Annual Surface Water Report, Water Year 2023 Page 509 95 1854 0 MIN --0 0 0 0 --1 109 0 New River Dam Pool, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2.9 2.9 2 2.9 2.9 3 2.9 2.9 4 2.9 2.9 5 2.9 2.9 6 2.9 2.9 7 2.9 2.9 8 2.9 2.9 9 2.9 2.9 10 2.9 2.9 11 2.9 2.9 12 2.9 2.9 13 2.9 2.9 14 2.9 2.9 15 2.9 2.9 16 2.9 2.9 17 2.9 2.9 18 2.9 2.9 19 2.9 2.9 20 2.9 2.9 21 2.9 2.9 22 2.9 2.9 23 2.9 2.9 24 2.9 2.9 25 2.9 2.9 26 2.9 2.9 27 2.9 2.9 28 2.9 2.9 29 2.9 2.9 30 2.9 2.9 31 2.9 --MEAN 2.9 2.9 MAX 2.9 2.9 MIN 2.9 2.9 WTR YR 2023 MEAN DEC 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.97 Daily Mean Values JAN FEB MAR APR 2.9 2.9 2.9 2.9 2.9 2.9 3.2 2.9 2.9 2.9 4.1 2.9 2.9 2.9 4.6 2.9 2.9 2.9 3.6 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.8 2.9 3.9 2.9 3.6 2.9 4.4 2.9 2.9 2.9 3.3 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.0 2.9 2.9 2.9 12.2 2.9 2.9 2.9 12.6 2.9 2.9 2.9 6.6 2.9 2.9 2.9 3.1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 --2.9 2.9 2.9 --2.9 --3.0 2.9 3.8 2.9 5.7 2.9 16.8 2.9 2.9 2.9 2.9 2.9 MAX 16.75 MIN 2.88 FCDMC Annual Surface Water Report, Water Year 2023 Page 510 MAY 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 JUN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 JUL 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 AUG 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 SEP 3.2 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 4.1 2.9 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 35.09 Years | 12,815 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 2023 Page 511 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 2023 Page 512 2010 2015 2020 2025 WY2023 Events Date of Peak 1/17 3/4 3/22 9/1 Peak Gage Height 4.96 4.48 8.68 3.75 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 513 Peak Discharge (cfs) 138 84 1097 26 New River Dam Outlet, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 8 5 17 32 12 1 17 11 36 29 2 584 626 119 4 0 0 0 0 0 1502 65 2 138 0 128 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 514 ------0 0 0 0 0 1430 46 1097 0 2836 4 MAX --0 0 0 0 0 1097 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --8 0 26 0 15 2979 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 33.49 Years | 12,233 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 2023 Page 515 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 2023 Page 516 2015 2020 2025 WY2023 Events Date of Peak 3/4 3/22 Peak Gage Height 0.55 2.18 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 517 Peak Discharge (cfs) 193 2033 New River at Bell Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 6681 82 16 67 996 1606 602 0 0 0 0 0 3369 67 2 132 0 133 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 518 ------0 0 0 0 0 3301 106 2033 0 6548 9 MAX --0 0 0 0 0 2033 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT New River at Glendale Avenue, ID #61507 (transducer), #61513 (radar) Site Data LOCATION West of 99th Avenue on Glendale Avenue DRAINAGE AREA 600 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 33.53 Years | 12,247 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 2023 Page 519 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 2023 Page 520 2015 2020 2025 WY2023 Events PT Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) Peak Gage Height (feet) 2.53 1.05 0.96 1.82 1.95 2.34 2.52 2.07 3.49 0.81 1.33 Peak Discharge (cfs) 289 52 44 147 169 244 285 189 1478 32 81 None WY2023 Events Radar Date of Peak 10/16 12/4 12/13 12/28 1/18 2/15 3/2 3/15 3/23 9/3 9/13 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 521 New River at Glendale Avenue (#61513), runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 4 4 2 4 4 3 4 4 4 4 4 5 4 4 6 4 4 7 4 4 8 4 4 9 4 4 10 4 4 11 4 4 12 4 4 13 4 4 14 4 4 15 80 4 16 198 4 17 63 4 18 26 4 19 4 4 20 4 4 21 4 4 22 4 4 23 4 4 24 4 4 25 4 4 26 4 4 27 4 4 28 4 4 29 4 4 30 4 4 31 4 --TOTAL ----MEAN 15 4 MAX ----MIN ----AC_FT ----WTR YR 2023 TOTAL DEC 4 4 11 41 38 20 4 4 4 4 4 22 34 21 17 17 11 4 4 4 4 4 4 4 4 4 4 61 74 23 15 --15 --------- Daily Mean Values JAN FEB MAR APR MAY 42 8 49 4 4 82 18 218 4 4 37 19 145 4 4 16 21 193 4 4 4 24 194 4 4 4 25 135 4 4 4 26 52 4 4 4 34 27 4 4 4 30 16 4 4 4 34 7 4 4 4 43 4 4 4 4 30 4 4 4 4 28 4 4 4 4 35 4 4 4 13 106 24 4 4 58 27 87 4 4 89 15 177 4 4 102 15 113 4 4 77 15 49 4 4 45 17 27 4 4 30 15 11 4 4 18 21 457 4 4 14 18 1279 4 4 4 14 693 4 4 4 4 275 4 4 4 4 95 4 4 4 4 28 4 4 4 4 13 4 4 4 --4 4 4 4 --4 4 4 4 --4 --4 ----------22 23 142 4 4 ------------------------------MEAN 25 MAX --- MIN JUN JUL AUG SEP 4 4 10 82 4 4 13 61 4 5 10 18 4 10 12 10 4 9 13 19 4 15 18 13 4 15 19 11 4 13 14 30 4 14 15 46 4 14 19 57 4 13 15 19 4 11 20 9 4 7 20 42 4 8 17 27 4 15 18 20 4 15 60 34 4 14 41 23 4 12 19 9 4 12 42 12 4 13 35 18 4 15 17 16 4 14 25 12 4 13 22 34 4 14 34 22 4 9 26 22 4 8 40 12 4 15 42 36 4 15 21 32 4 12 12 34 4 13 13 43 --15 15 ----------4 12 22 27 --------------------------- 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 2023 Page 522 New River at Glendale Avenue (#61507), runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 523 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 0 MAY JUN JUL 0 0 0 0 0 MIN ------------------------------------------0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG ------------------------------------------------------------------------- SEP ------------------------------------------------------------------------0 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 26.97 Years | 9,851 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 2023 Page 524 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 2023 Page 525 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 3/1 0.98 0.0 0.0 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 526 North Heights Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR 1 2 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 24 2 4 2 0 0 0 0 0 12 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 527 ------9 0 6 0 17 0 4 0 13 0 7 MAX --0 0 0 0 0 13 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT North Heights Dam, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 528 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 North Heights Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.2 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.25 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.3 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.4 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.3 0.3 0.2 0.5 1.0 0.2 0.2 0.2 0.2 0.98 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2023 Page 529 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 29.18 Years | 10,658 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 2023 Page 530 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 2023 Page 531 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/4 12/28 1/1 1/7 2/14 3/1 3/15 9/12 Peak Gage Height 1.07 0.57 0.72 0.74 0.59 0.49 0.89 0.92 0.74 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 532 Peak Discharge (cfs) 81 30 42 44 32 14 59 62 44 Old Crosscut Canal near McDowell Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 4 0 MEAN 0 0 MAX 81 0 MIN 0 0 AC_FT 8 0 WTR YR 2023 TOTAL DEC JAN 6 4 Daily Mean Values FEB MAR APR 6 MAY JUN JUL AUG SEP 4 7 10 4 2 2 1 4 2 2 10 22 1 42 0 44 68 27 1 44 0 53 MEAN ------1 0 24 0 3 0 10 0 62 0 19 MAX --0 0 0 0 0 81 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --4 0 44 0 9 136 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 2023 Page 533 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 7.98 Years | 2,915 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 2023 Page 534 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 2023 Page 535 2025 WY2023 Events Date of Peak 10/16 12/4 12/28 1/1 1/17 2/14 3/1 3/15 8/15 9/12 Peak Gage Height (feet) 1.55 1.05 1.80 1.62 1.40 1.55 2.17 1.05 0.98 0.73 Peak Volume (ac-ft) 12.3 7.7 15.0 13.1 10.9 12.3 19.2 7.7 7.0 5.0 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 536 Percent Spillway Capacity 14.6 9.1 17.8 15.5 12.9 14.6 22.8 9.1 8.3 5.9 Paradise Lane at 33rd Drive Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 3 0 MEAN 0 0 MAX 17 0 MIN 0 0 AC_FT 6 0 WTR YR 2023 TOTAL DEC JAN 8 3 Daily Mean Values FEB MAR APR 4 7 MAY JUN JUL AUG SEP 2 1 2 3 2 1 8 3 1 2 1 6 9 0 18 0 17 60 22 1 17 0 45 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 537 ------5 0 17 0 11 0 14 0 20 0 27 MAX --0 0 0 0 0 20 0 0 0 0 0 MIN --0 0 0 0 0 0 --0 5 2 0 0 0 0 15 9 0 0 0 0 9 4 AC_FT 119 Paradise Lane at 33rd Drive Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 12 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN 5 2 Daily Mean Values FEB MAR APR 3 5 MAY JUN JUL AUG SEP 1 1 1 2 1 ------0 12 0 19 0 19 0 MIN 1 1 4 2 4 0 15 0 0 0 13 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 538 --0 0 0 0 0 0 0 --0 0 0 0 0 0 0 7 0 --0 5 0 Paradise Lane at 33rd Drive, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.3 0.2 16 0.3 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 1.6 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.7 0.2 0.2 0.2 0.2 1.8 0.2 0.24 JAN 0.8 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.7 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 1.6 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.6 0.2 0.2 0.8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.4 0.3 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.3 0.2 1.6 2.2 0.2 0.2 0.2 0.2 2.17 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2023 Page 539 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.0 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.7 0.2 Paradise Lane at 47th Avenue Basin, ID #13707 Site Data LOCATION Located on the northeast corner of Paradise Ln and 47 th 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 7.98 Years | 2,915 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 2023 Page 540 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 2023 Page 541 2025 WY2023 Events Date of Peak 10/15 1/1 1/16 3/1 Peak Gage Height (feet) 0.80 0.50 0.57 0.62 Peak Volume (ac-ft) 7.3 4.6 5.3 5.7 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 542 Percent Spillway Capacity 17.7 11.1 12.8 13.9 Paradise Lane at 47th Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ----0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --0 0 0 0 0 MIN NOTE: There is currently no discharge rating at this location. FCDMC Annual Surface Water Report, Water Year 2023 Page 543 0 Paradise Lane at 47th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 7 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 3 0 0 JAN 1 Daily Mean Values FEB MAR APR 1 0 5 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 544 ------0 5 0 7 0 6 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 3 0 --0 0 0 0 0 0 0 4 0 --0 4 0 Paradise Lane at 47th Avenue Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.2 0.1 16 0.1 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 0.8 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 0.10 JAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.6 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.5 0.6 0.1 0.1 0.1 0.1 0.80 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2023 Page 545 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.4 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.4 0.1 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 14.73 Years | 5,381 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 2023 Page 546 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 2023 Page 547 2020 2025 WY2023 Events Date of Peak 10/16 12/4 1/2 3/2 3/16 8/8 Peak Gage Height (feet) 5.48 3.87 3.48 2.40 3.48 2.11 Peak Volume (ac-ft) 10.8 7.3 6.6 4.4 6.6 3.8 Hydrograph of peak 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 548 Percent Spillway Capacity 23.6 16.1 14.4 9.7 15.0 8.3 Pecos Sediment Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 549 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Pecos Sediment Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 10 17 10 18 9 19 8 20 7 21 7 22 6 23 5 24 4 25 3 26 1 27 28 29 30 31 --MEAN 2 0 MAX 11 0 MIN 0 0 WTR YR 2023 MEAN DEC 1 7 7 6 6 5 5 4 4 4 2 JAN 4 6 6 5 5 4 4 3 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 4 4 4 3 2 1 3 4 3 3 1 1 7 6 6 5 5 4 4 2 2 4 4 4 2 7 0 1 1 7 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 550 ------0 0 0 11 2 7 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 0 0 0 4 0 --0 0 0 Pecos Sediment Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 1.5 1.5 2 1.5 1.5 3 1.5 1.5 4 1.5 1.5 5 1.5 1.5 6 1.5 1.5 7 1.5 1.5 8 1.5 1.5 9 1.5 1.5 10 1.5 1.5 11 1.5 1.5 12 1.5 1.5 13 1.5 1.5 14 1.5 1.5 15 2.4 1.5 16 5.2 1.5 17 5.1 1.5 18 4.6 1.5 19 4.2 1.5 20 3.8 1.5 21 3.5 1.5 22 3.2 1.5 23 2.8 1.5 24 2.3 1.5 25 1.9 1.5 26 1.6 1.5 27 1.5 1.5 28 1.5 1.5 29 1.5 1.5 30 1.5 1.5 31 1.5 --MEAN 2.2 1.5 MAX 5.5 1.5 MIN 1.5 1.5 WTR YR 2023 MEAN DEC 1.5 1.5 1.6 3.5 3.7 3.4 3.2 2.9 2.6 2.4 2.1 2.0 1.8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.9 2.2 2.3 2.2 2.0 3.9 1.5 1.65 JAN 2.5 3.4 3.2 2.9 2.6 2.4 2.1 1.9 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.8 3.5 1.5 MAX Daily Mean Values FEB MAR APR 1.5 1.5 1.5 1.5 2.4 1.5 1.5 2.3 1.5 1.5 2.1 1.5 1.5 2.0 1.5 1.5 1.8 1.5 1.5 1.6 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.6 1.5 1.5 3.5 1.5 1.5 3.4 1.5 1.5 3.1 1.5 1.5 2.8 1.5 1.5 2.6 1.5 1.5 2.4 1.5 1.5 2.1 1.5 1.5 1.8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 --1.5 1.5 --1.5 1.5 --1.5 --1.5 1.9 1.5 1.5 3.6 1.5 1.5 1.5 1.5 5.48 MIN 1.48 FCDMC Annual Surface Water Report, Water Year 2023 Page 551 MAY 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 JUN 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 JUL 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 AUG 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 1.9 1.9 1.7 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.3 1.5 SEP 1.5 1.5 0.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 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 14.73 Years | 5,381 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 2023 Page 552 Location Map FCDMC Annual Surface Water Report, Water Year 2023 Page 553 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak 2023 impoundment event, No impoundments recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 554 Peak Volume (ac-ft) Percent Spillway Capacity Pecos Basin Pool, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 13 0 0 0 0 0 13 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 555 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 51 0 0 0 0 0 MIN --0 0 0 0 0 0 0 13 0 0 0 51 0 0 0 25 AC_FT --0 0 0 0 0 25 Pecos Basin Pool, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 556 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Pecos Basin Pool, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 6.0 6.0 2 6.0 6.0 3 6.0 6.0 4 6.0 6.0 5 6.0 6.0 6 6.0 6.0 7 6.0 6.0 8 6.0 6.0 9 6.0 6.0 10 6.0 6.0 11 6.0 6.0 12 6.0 6.0 13 6.0 6.0 14 6.0 6.0 15 6.0 6.0 16 6.0 6.0 17 6.0 6.0 18 6.0 6.0 19 6.0 6.0 20 6.0 6.0 21 6.0 6.0 22 6.0 6.0 23 6.0 6.0 24 6.0 6.0 25 6.0 6.0 26 6.0 6.0 27 6.0 6.0 28 6.0 6.0 29 6.0 6.0 30 6.0 6.0 31 6.0 --MEAN 6.0 6.0 MAX 6.0 6.0 MIN 6.0 6.0 WTR YR 2023 MEAN DEC 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.05 JAN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 MAX Daily Mean Values FEB MAR APR 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 --6.0 6.0 --6.0 6.0 --6.0 --6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.17 MIN 6.05 FCDMC Annual Surface Water Report, Water Year 2023 Page 557 MAY 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 JUN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 --6.0 6.0 6.0 JUL 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 AUG 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.1 6.2 6.0 SEP 6.0 6.0 0.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 --6.0 6.0 6.0 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 14.69 Years | 5,366 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 2023 Page 558 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 2023 Page 559 2020 2025 WY2023 Events Date of Peak 10/16 2/14 3/15 Peak Gage Height 0.70 0.75 0.67 Hydrograph of peak WY 2023 flow event, 02/14/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 560 Peak Discharge (cfs) 41 44 39 Pecos North Inflow, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 7 16 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 13 0 MEAN 0 0 MAX 41 0 MIN 0 0 AC_FT 25 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 7 10 10 0 0 0 0 0 40 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 561 ------20 1 44 0 40 0 0 0 0 0 0 MAX --0 0 0 0 0 44 0 0 0 0 0 MIN --0 0 0 0 0 0 0 7 0 0 0 14 0 0 0 14 AC_FT --0 0 0 0 0 79 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 14.69 Years | 5,366 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 2023 Page 562 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 2023 Page 563 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 564 Peak Discharge (cfs) Pecos East Inflow, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 565 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 AUG 0 0 0 0 0 AC_FT SEP --0 0 0 0 0 0 0 0 0 0 0 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 14.69 Years | 5,366 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 2023 Page 566 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 2023 Page 567 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 568 Peak Discharge (cfs) Pecos West Inflow, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 ------------------- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 569 ------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 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 14.26 Years | 5,207 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 2023 Page 570 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 2023 Page 571 2020 2025 WY2023 Events Date of Peak 10/4 10/5 10/6 10/15 1/1 3/1 Peak Gage Height (feet) 0.93 1.35 1.23 1.97 0.80 3.30 Peak Volume (ac-ft) 2.0 3.0 2.7 3.8 1.8 5.3 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 572 Percent Spillway Capacity 3.5 5.0 4.6 6.4 1.1 8.8 Phoenix Dam #2A, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 6 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 1 0 0 1 Daily Mean Values FEB MAR APR 1 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 573 ------0 0 0 0 0 0 1 0 15 0 1 MAX --0 0 0 0 0 15 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 2 Phoenix Dam #2A, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 4 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 1 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 574 ------0 0 0 5 0 5 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix Dam #2A, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 2.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 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 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.0 3.3 0.0 0.0 0.0 0.0 3.30 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 575 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 14.25 Years | 5,206 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 2023 Page 576 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 2023 Page 577 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 578 Peak Volume (ac-ft) Percent Spillway Capacity Phoenix Dam #2B, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 1 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 579 ------0 0 0 0 0 0 1 0 3 0 1 MAX MAY --0 0 0 0 0 3 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 1 Phoenix Dam #2B, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 580 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix Dam #2B, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.0 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 JAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 Daily Mean Values FEB MAR APR 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 0.44 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 581 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 21.79 Years | 7,957 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 2023 Page 582 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 2023 Page 583 2020 2025 WY2023 Events Date of Peak 3/1 8/31 Peak Gage Height (feet) 4.31 2.90 Peak Volume (ac-ft) 1.2 0.7 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 584 Percent Spillway Capacity 2.0 1.1 Phoenix Dam #3, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 1 Daily Mean Values FEB MAR APR 1 0 0 2 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 585 ------0 0 0 0 0 0 1 0 34 0 2 MAX --0 0 0 0 0 34 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 AUG SEP 0 0 0 0 0 23 0 0 0 0 AC_FT --0 0 0 0 0 2 Phoenix Dam #3, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 586 ------0 0 0 1 0 1 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 1 0 --0 0 0 Phoenix Dam #3, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.7 0.7 2 0.7 0.7 3 0.7 0.7 4 0.7 0.7 5 0.7 0.7 6 0.7 0.7 7 0.7 0.7 8 0.7 0.7 9 0.7 0.7 10 0.7 0.7 11 0.7 0.7 12 0.7 0.7 13 0.7 0.7 14 0.7 0.7 15 0.7 0.7 16 0.7 0.7 17 0.7 0.7 18 0.7 0.7 19 0.7 0.7 20 0.7 0.7 21 0.7 0.7 22 0.7 0.7 23 0.7 0.7 24 0.7 0.7 25 0.7 0.7 26 0.7 0.7 27 0.7 0.7 28 0.7 0.7 29 0.7 0.7 30 0.7 0.7 31 0.7 --MEAN 0.7 0.7 MAX 0.7 0.7 MIN 0.7 0.7 WTR YR 2023 MEAN DEC 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.65 JAN 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 1.0 0.7 MAX Daily Mean Values FEB MAR APR 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 --0.7 0.7 --0.7 0.7 --0.7 --0.7 0.7 0.7 0.7 4.3 0.7 0.7 0.7 0.7 4.31 MIN 0.65 FCDMC Annual Surface Water Report, Water Year 2023 Page 587 MAY 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 JUN 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 JUL 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 AUG 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 2.9 0.7 SEP 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 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 14.24 Years | 5,200 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 2023 Page 588 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 2023 Page 589 2020 2025 WY2023 Events Date of Peak 10/15 1/1 3/1 Peak Gage Height (feet) 2.12 0.75 2.79 Peak Volume (ac-ft) 0.5 0.1 0.7 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 590 Percent Spillway Capacity 1.3 0.4 1.8 Phoenix Dam #4, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 12 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 1 Daily Mean Values FEB MAR APR 0 0 2 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 591 ------0 0 0 0 0 0 0 0 14 0 1 MAX --0 0 0 0 0 14 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 1 Phoenix Dam #4, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 592 ------0 0 0 1 0 1 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix Dam #4, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.1 0.1 16 0.1 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 2.1 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10 JAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.8 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.1 2.8 0.1 0.1 0.1 0.1 2.79 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2023 Page 593 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 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 21.78 Years | 7,956 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 2023 Page 594 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 2023 Page 595 2020 2025 WY2023 Events Date of Peak 1/1 3/1 Peak Gage Height (feet) 2.02 3.25 Peak Volume (ac-ft) 0.5 0.8 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 596 Percent Spillway Capacity 0.0 0.4 Phoenix Dam #7, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 4 0 MIN 0 0 AC_FT 1 0 WTR YR 2023 TOTAL DEC JAN 1 0 0 2 0 0 2 Daily Mean Values FEB MAR APR 1 1 0 15 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 597 ------0 0 2 0 0 0 1 0 26 0 2 MAX --0 0 0 0 0 26 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 5 Phoenix Dam #7, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 1 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 598 ------0 0 0 1 0 1 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix Dam #7, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.8 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 0.2 0.17 JAN 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.0 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.5 3.2 0.2 0.2 0.2 0.2 3.25 MIN 0.17 FCDMC Annual Surface Water Report, Water Year 2023 Page 599 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 14.23 Years | 5,199 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 2023 Page 600 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 2023 Page 601 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 03/01 0.93 0.0 0.0 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 602 Phoenix Dam #99, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 3 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 2 0 1 1 Daily Mean Values FEB MAR APR 0 0 2 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 603 ------0 0 1 0 0 0 0 0 4 0 1 MAX MAY --0 0 0 0 0 4 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 1 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 3 Phoenix Dam #99, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 604 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix Dam #99, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.0 0.0 16 0.0 0.0 17 0.0 0.0 18 0.0 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.0 0.0 MAX 0.9 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.5 0.0 0.00 JAN 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 MAX Daily Mean Values FEB MAR APR 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.4 0.9 0.0 0.0 0.0 0.0 0.93 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 605 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 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 21.84 Years | 7,977 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 2023 Page 606 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 2023 Page 607 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 608 Peak Volume (ac-ft) Percent Spillway Capacity Phoenix East Park Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 609 Phoenix East Park Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 610 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix East Park Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.1 0.1 16 0.1 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 0.1 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10 JAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2023 Page 611 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 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 21.84 Years | 7,976 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 2023 Page 612 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 2023 Page 613 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 3/1 0.98 1.5 1.3 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 614 Phoenix West Park Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 2 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 615 ------0 0 0 0 0 0 0 0 5 0 0 MAX MAY --0 0 0 0 0 5 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Phoenix West Park Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 1 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 616 ------0 0 0 1 0 1 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Phoenix West Park Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.2 0.2 16 0.2 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 0.5 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 1.0 0.2 0.2 0.2 0.2 0.98 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 617 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 7.43 Years | 2,715 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 2023 Page 618 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 2023 Page 619 2025 WY2023 Events Date of Peak Peak Gage Height (feet) 10/4 9.53 9/8 10.25 *basin is kept at a base capacity of 90.6% capacity Peak Volume (ac-ft) 13.0 13.0 Hydrograph of peak 2023 impoundment, 09/08/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 620 Percent Spillway Capacity 98.1 98.5 Phoenix Zoo Dam #3, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 621 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Phoenix Zoo Dam #3, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 13 13 2 13 13 3 13 13 4 13 13 5 13 13 6 13 13 7 13 13 8 13 13 9 13 13 10 13 13 11 13 13 12 13 13 13 13 13 14 13 13 15 13 13 16 13 13 17 13 13 18 13 13 19 13 13 20 13 13 21 13 13 22 13 13 23 13 13 24 13 13 25 13 13 26 13 13 27 13 13 28 13 13 29 13 13 30 13 13 31 13 --MEAN 13 13 MAX 13 13 MIN 13 13 WTR YR 2023 MEAN DEC 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 13 13 13 13 13 13 13 13 13 13 JAN 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 13 12 12 12 12 12 13 13 12 MAX Daily Mean Values FEB MAR APR 12 13 13 12 13 13 12 13 13 12 13 13 12 13 13 12 13 13 12 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 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 13 13 13 13 13 13 13 13 13 13 13 13 --13 13 --13 13 --13 --13 13 13 13 13 13 12 13 13 13 MIN 12 FCDMC Annual Surface Water Report, Water Year 2023 Page 622 MAY 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 13 13 13 13 13 13 13 13 13 JUN 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 13 13 13 13 13 --13 13 13 JUL 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 13 13 13 13 13 13 13 13 13 AUG 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 13 13 13 13 13 13 13 13 13 SEP 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 13 13 13 13 13 --13 13 13 Phoenix Zoo Dam #3, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 9.7 9.4 2 9.7 9.4 3 9.8 9.5 4 9.7 9.5 5 9.8 9.5 6 9.8 9.5 7 9.7 9.5 8 9.7 9.5 9 9.6 9.5 10 9.7 9.5 11 9.7 9.5 12 9.6 9.6 13 9.6 9.7 14 9.6 9.7 15 9.5 9.7 16 9.6 9.7 17 9.6 9.6 18 9.5 9.6 19 9.5 9.6 20 9.5 9.6 21 9.6 9.5 22 9.5 9.5 23 9.6 9.5 24 9.7 9.5 25 9.8 9.5 26 9.7 9.5 27 9.6 9.4 28 9.6 9.4 29 9.5 9.4 30 9.4 9.4 31 9.4 --MEAN 9.6 9.5 MAX 9.8 9.7 MIN 9.4 9.4 WTR YR 2023 MEAN DEC 9.4 9.4 9.4 9.5 9.4 9.3 9.3 9.3 9.2 9.3 9.4 9.3 9.3 9.3 9.2 9.3 9.4 9.5 9.4 9.4 9.4 9.5 9.6 9.6 9.6 9.7 9.7 9.7 9.5 9.4 9.4 9.4 9.7 9.2 9.54 Daily Mean Values JAN FEB MAR APR 9.4 9.0 9.4 9.2 9.5 9.0 9.6 9.4 9.5 9.0 9.7 9.5 9.4 9.0 9.6 9.5 9.5 9.0 9.5 9.6 9.4 9.0 9.5 9.6 9.4 9.0 9.5 9.6 9.4 9.0 9.4 9.6 9.4 9.1 9.4 9.6 9.3 9.6 9.4 9.6 9.3 9.6 9.4 9.7 9.3 9.6 9.5 9.7 9.3 9.5 9.5 9.7 9.3 9.4 9.4 9.7 9.3 9.5 9.5 9.6 9.3 9.6 9.6 9.7 9.3 9.6 9.6 9.7 9.3 9.6 9.6 9.6 9.2 9.7 9.5 9.5 9.2 9.7 9.5 9.4 9.2 9.7 9.4 9.4 9.2 9.7 9.4 9.5 9.2 9.6 9.4 9.6 9.1 9.6 9.3 9.7 9.1 9.6 9.3 9.8 9.1 9.5 9.3 9.7 9.1 9.4 9.3 9.6 9.1 9.4 9.2 9.6 9.1 --9.2 9.6 9.1 --9.2 9.6 9.1 --9.2 --9.3 9.4 9.4 9.6 9.5 9.7 9.7 9.8 9.1 9.0 9.1 9.2 MAX 10.25 MIN 8.95 FCDMC Annual Surface Water Report, Water Year 2023 Page 623 MAY 9.6 9.6 9.6 9.5 9.5 9.6 9.6 9.6 9.6 9.6 9.6 9.5 9.6 9.6 9.6 9.6 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.6 9.6 9.6 9.5 9.6 9.5 JUN 9.6 9.6 9.6 9.6 9.6 9.8 9.8 9.8 9.8 9.8 9.7 9.7 9.7 9.7 9.7 9.7 9.7 9.7 9.6 9.6 9.6 9.6 9.6 9.5 9.6 9.6 9.6 9.6 9.6 9.6 --9.7 9.9 9.5 JUL 9.6 9.7 9.7 9.7 9.7 9.6 9.6 9.6 9.6 9.6 9.8 9.9 10.0 10.0 10.0 10.0 10.0 10.0 9.9 9.9 9.9 9.9 9.8 9.7 9.7 9.6 9.5 9.5 9.5 9.5 9.6 9.7 10.0 9.5 AUG 9.6 9.6 9.7 9.7 9.8 9.8 9.8 9.8 9.7 9.7 9.6 9.7 9.9 9.9 9.9 9.8 9.7 9.6 9.6 9.6 9.7 9.7 9.6 9.6 9.6 9.6 9.5 9.5 9.5 9.6 9.6 9.7 9.9 9.5 SEP 9.6 9.6 9.6 9.7 9.7 9.7 10.1 10.2 10.0 9.8 9.7 9.6 9.5 9.5 9.5 9.5 9.5 9.7 9.7 9.6 9.6 9.5 9.5 9.5 9.4 9.4 9.4 9.5 9.6 9.5 --9.6 10.2 9.4 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 7.43 Years | 2,712 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 2023 Page 624 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 2023 Page 625 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity None* *It is not uncommon for this site to overtop every year. The base capacity is kept at approximately 95% capacity Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 626 Phoenix Zoo Dam #5, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2022 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 627 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Phoenix Zoo Dam #5, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 9 9 2 9 9 3 9 9 4 9 9 5 9 9 6 9 9 7 9 9 8 9 9 9 9 9 10 9 9 11 9 9 12 9 9 13 9 9 14 9 10 15 9 10 16 9 10 17 9 --18 9 --19 9 --20 9 --21 9 9 22 9 9 23 9 9 24 9 9 25 9 9 26 10 9 27 9 9 28 9 9 29 9 9 30 9 9 31 9 --MEAN 9 9 MAX 10 10 MIN 9 9 WTR YR 2023 MEAN DEC 9 9 9 10 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 9 9 9 10 9 9 JAN 9 10 9 9 9 ----------9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 MAX Daily Mean Values FEB MAR APR 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 9 10 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 --9 9 --9 9 --9 --9 9 9 10 10 10 9 9 9 10 MIN 9 FCDMC Annual Surface Water Report, Water Year 2023 Page 628 MAY 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 JUN 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 --9 9 9 JUL 9 9 9 9 9 9 9 9 9 9 9 10 10 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 AUG 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 10 9 SEP 9 9 9 9 9 9 9 10 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 --9 10 9 Phoenix Zoo Dam #5, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 8.6 8.6 2 8.6 8.6 3 8.6 8.6 4 8.6 8.6 5 8.6 8.6 6 8.6 8.6 7 8.6 8.6 8 8.6 8.6 9 8.6 8.6 10 8.6 8.6 11 8.6 8.6 12 8.6 8.6 13 8.6 8.6 14 8.6 8.7 15 8.6 8.7 16 8.6 8.7 17 8.6 --18 8.6 --19 8.6 --20 8.6 --21 8.6 8.6 22 8.6 8.6 23 8.6 8.6 24 8.6 8.6 25 8.6 8.6 26 8.7 8.6 27 8.6 8.6 28 8.6 8.6 29 8.6 8.6 30 8.6 8.6 31 8.6 --MEAN 8.6 8.6 MAX 8.7 8.7 MIN 8.3 8.5 WTR YR 2023 MEAN DEC 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.5 8.5 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.7 8.5 8.58 JAN 8.6 8.7 8.6 8.6 8.6 ----------8.5 8.6 8.6 8.5 8.5 8.5 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.6 8.7 8.5 MAX Daily Mean Values FEB MAR APR 8.5 8.6 8.5 8.5 8.6 8.5 8.5 8.6 8.5 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 8.7 8.6 8.6 8.7 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 --8.5 8.5 --8.5 8.6 --8.5 --8.6 8.6 8.6 8.7 8.7 8.7 8.5 8.5 8.5 8.89 MIN 8.34 FCDMC Annual Surface Water Report, Water Year 2023 Page 629 MAY 8.5 8.5 8.5 8.5 8.5 8.6 8.6 8.6 8.5 8.5 8.5 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.6 8.5 JUN 8.5 8.5 8.5 8.5 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 --8.5 8.6 8.5 JUL 8.6 8.6 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.6 8.7 8.7 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.5 8.5 8.5 8.5 8.5 8.6 8.9 8.5 AUG 8.5 8.5 8.5 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.5 8.6 8.6 8.7 8.5 SEP 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.7 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.5 8.5 8.6 8.6 --8.6 8.7 8.5 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 11.47 Years | 4,190 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 2,437 cfs | 4.41 feet | 09/23/2019 FCDMC Annual Surface Water Report, Water Year 2023 Page 630 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 2023 Page 631 2025 WY2023 Events Date of Peak 12/24 12/28 Peak Gage Height 1.28 1.65 Hydrograph of peak WY 2023 flow event, 12/28/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 632 Peak Discharge (cfs) 115 207 Picacho Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 145 1 1 20 8 14 19 10 1 73 2 207 0 145 73 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 633 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 207 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 9.46 Years | 3,456 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 2023 Page 634 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 635 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event, No runoff recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 636 Peak Discharge (cfs) Pima Canyon Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP --- 0 0 0 0 0 0 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 637 ------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 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 28.37 Years | 10,363 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 2023 Page 638 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 2023 Page 639 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 640 Peak Discharge (cfs) Powder House Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 3 Daily Mean Values FEB MAR APR 0 0 6 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 641 ------0 0 0 0 0 0 0 0 2 0 0 MAX MAY --0 0 0 0 0 6 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 5 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 15.63 Years | 5,709 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 2023 Page 642 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 2023 Page 643 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 1/1 0.62 30 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 644 Powerline Floodway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 4 0 MEAN 0 0 MAX 13 0 MIN 0 0 AC_FT 7 0 WTR YR 2023 TOTAL DEC 2 9 10 0 23 0 21 61 JAN 4 25 9 Daily Mean Values FEB MAR APR 2 7 38 1 30 0 76 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 645 ------0 0 0 0 0 0 8 0 16 0 17 MAX --0 0 0 0 0 30 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 120 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 30.83 Years | 11,260 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 2023 Page 646 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 2023 Page 647 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/3 1/2 Peak Gage Height (feet) 1.20 0.71 0.86 Peak Volume (ac-ft) 73.6 40.9 50.9 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 648 Percent Spillway Capacity 1.2 0.7 0.8 Powerline FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 6 17 5 18 4 19 1 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 19 0 MEAN 1 0 MAX 14 0 MIN 0 0 AC_FT 38 0 WTR YR 2023 TOTAL DEC 1 1 3 0 8 0 6 38 JAN 3 8 4 Daily Mean Values FEB MAR APR 16 1 10 0 31 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 649 ------0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 14 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 75 Powerline FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16 28 17 26 18 19 19 6 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 3 0 MAX 74 0 MIN 0 0 WTR YR 2023 MEAN DEC 7 6 0 41 0 1 JAN 16 44 20 Daily Mean Values FEB MAR APR 3 51 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 650 ------0 0 0 74 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Powerline FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.4 0.2 16 0.5 0.2 17 0.5 0.2 18 0.4 0.2 19 0.3 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 1.2 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.7 0.2 0.21 JAN 0.4 0.7 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.9 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.20 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 651 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 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 22.62 Years | 8,260 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 2023 Page 652 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 2023 Page 653 2020 2025 WY2023 Events Date of Peak 10/15 12/4 12/28 1/1 1/16 2/15 2/22 2/26 3/2 3/15 3/22 9/1 Peak Gage Height (feet) 5.18 2.89 2.51 3.46 2.04 1.89 1.52 1.99 2.89 3.98 2.94 1.60 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 654 Peak Discharge (cfs) 401 126 96 176 64 55 35 61 126 228 130 39 Price Drain, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 17 --2 17 --3 18 --4 19 --5 20 --6 18 --7 27 --8 28 --9 29 --10 18 --11 20 --12 13 --13 13 --14 14 --15 86 --16 57 --17 39 --18 21 --19 20 8 20 16 32 21 20 13 22 15 --23 15 --24 15 --25 11 --26 15 --27 ----28 ----29 ----30 ----31 ----TOTAL 602 53 MEAN 19 2 MAX 401 81 MIN ----AC_FT 1194 105 WTR YR 2023 TOTAL DEC ----43 86 26 ----------------2 --------------------------39 6 ----201 6 126 --400 5053 Daily Mean Values JAN FEB MAR APR MAY 65 --28 13 13 66 3 81 13 13 18 11 22 10 15 16 12 12 11 13 15 11 12 22 14 12 10 10 15 12 --11 8 21 13 --10 14 19 12 --12 9 20 13 --13 9 18 15 --18 14 19 15 --18 18 20 12 --19 17 16 12 --19 17 17 14 --24 43 16 11 30 17 90 15 10 17 15 26 14 15 8 13 15 16 10 --15 16 20 11 --13 18 18 18 --16 19 15 14 --24 24 16 13 --19 225 16 12 --17 218 14 18 --17 27 16 12 --38 15 19 14 --17 14 17 14 --14 13 13 14 ----12 11 12 ----14 15 10 ----14 --16 248 425 1074 484 410 8 15 35 16 13 176 61 1163 33 21 ----6 7 6 493 844 2131 959 814 MEAN 14 MAX 1163 MIN JUN JUL AUG SEP 18 15 19 35 17 14 12 14 19 14 8 11 15 13 9 8 13 10 8 6 13 12 10 11 20 10 7 11 11 10 10 17 12 10 11 18 9 12 5 18 12 12 13 16 12 13 14 16 12 7 16 25 17 14 16 18 17 11 15 11 16 14 14 10 13 13 9 11 12 13 14 14 9 13 11 8 6 16 9 12 13 15 9 11 12 12 11 16 8 15 14 17 9 14 9 18 11 8 12 12 11 12 16 11 8 15 18 5 11 17 18 4 10 15 15 7 10 19 13 5 --18 17 --373 403 383 396 12 13 12 13 27 25 35 39 3 4 4 1 740 799 759 785 --- AC_FT 10023 NOTE: There is almost always a base flow at this location, of undetermined origin. FCDMC Annual Surface Water Report, Water Year 2023 Page 655 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 6.33 Years | 2,313 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 2023 Page 656 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 657 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event There was no runoff events recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 658 Peak Discharge (cfs) Prickly Pear Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 659 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 24.71 Years | 9,026 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 2023 Page 660 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 2023 Page 661 2015 2020 2025 WY2023 Events Date of Peak 12/5 1/2 1/17 3/3 3/17 3/23 Peak Gage Height 3.44 8.27 6.03 3.46 2.84 2.94 Hydrograph of peak WY 2023 flow event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 662 Peak Discharge (cfs) 80 871 535 82 14 23 Queen Creek at CAP, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 16 29 JAN 56 546 108 7 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 3038 2 59 48 19 2 102 373 120 21 1 2 8 13 45 1333 1 43 80 871 0 0 88 2644 1532 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 663 ------0 0 0 0 0 154 5 82 0 305 4 MAX --0 0 0 0 0 871 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 30.05 Years | 10,974 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 2023 Page 664 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 2023 Page 665 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/4 1/2 1/17 Peak Gage Height 0.72 0.67 2.12 1.65 Hydrograph of peak WY 2023 flow event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 666 Peak Discharge (cfs) 55 49 551 327 Queen Creek at Rittenhouse Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 13 16 39 17 9 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 61 0 MEAN 2 0 MAX 55 0 MIN 0 0 AC_FT 121 0 WTR YR 2023 TOTAL DEC JAN 17 29 200 181 7 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 1403 140 55 14 3 46 601 1 19 49 551 0 0 91 1192 708 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 667 ------0 0 0 0 0 2 0 0 0 0 0 MAX --0 0 0 0 0 551 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 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 22.90 Years | 8,364 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 2023 Page 668 Watershed Map Rainbow Wash - water year peaks 8,000 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 2023 Page 669 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 4.42 2368 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 670 Rainbow Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 517 16 39 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 556 0 MEAN 18 0 MAX 2368 0 MIN 0 0 AC_FT 1103 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 556 JAN Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 671 ------0 0 0 0 0 2 0 0 0 0 0 MAX --0 0 0 0 0 2368 MAY 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 1103 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 24.18 Years | 8,832 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 2023 Page 672 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 2023 Page 673 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 674 Peak Discharge (cfs) Rawhide Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 675 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 AUG 0 0 0 0 0 AC_FT 0 0 0 0 0 SEP --0 0 0 0 0 0 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 22.00 Years | 8,034 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 2023 Page 676 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 2023 Page 677 2015 2020 2025 WY2023 Events Date of Peak 12/28 1/1 3/1 3/15 3/22 Peak Gage Height (feet) 0.75 1.43 1.43 0.65 1.70 Peak Volume (ac-ft) 0.0 0.2 0.2 0.0 0.4 Hydrograph of peak 2023 impoundment event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 678 Percent Spillway Capacity 0.4 0.8 0.8 0.3 0.9 Reata Pass Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR 1 MAY JUN JUL AUG SEP 0 0 1 0 0 --0 0 0 0 0 5 1 0 0 0 0 0 3 0 0 5 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 679 ------0 0 0 0 0 0 2 0 10 0 4 MAX --0 0 0 0 0 10 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT Reata Pass Dam, volume data Volume, in Acre-Feet, Water Year October 2022 to September 2023 DAY OCT NOV 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 MAX 0 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 680 ------0 0 0 0 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Reata Pass Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.1 0.1 2 0.1 0.1 3 0.1 0.1 4 0.1 0.1 5 0.1 0.1 6 0.1 0.1 7 0.1 0.1 8 0.1 0.1 9 0.1 0.1 10 0.1 0.1 11 0.1 0.1 12 0.1 0.1 13 0.1 0.1 14 0.1 0.1 15 0.1 0.1 16 0.1 0.1 17 0.1 0.1 18 0.1 0.1 19 0.1 0.1 20 0.1 0.1 21 0.1 0.1 22 0.1 0.1 23 0.1 0.1 24 0.1 0.1 25 0.1 0.1 26 0.1 0.1 27 0.1 0.1 28 0.1 0.1 29 0.1 0.1 30 0.1 0.1 31 0.1 --MEAN 0.1 0.1 MAX 0.1 0.1 MIN 0.1 0.1 WTR YR 2023 MEAN DEC 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.2 0.8 0.1 0.15 JAN 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 1.4 0.1 MAX Daily Mean Values FEB MAR APR 0.1 0.3 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.2 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 --0.1 0.1 --0.1 --0.2 0.2 0.1 0.4 1.7 0.1 0.1 0.1 0.1 1.70 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2023 Page 681 MAY 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 JUN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 JUL 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 AUG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 1.1 0.1 SEP 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 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 22.38 Years | 8,174 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 2023 Page 682 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 2023 Page 683 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 684 Peak Discharge (cfs) Reata Pass Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 685 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 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 15.28 Years | 5,582 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 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 2023 Page 686 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 2023 Page 687 2020 2025 WY2023 Events Date of Peak 10/16 1/2 1/17 2/15 3/16 9/12 Peak Gage Height (feet) 2.24 1.29 1.24 0.64 0.64 1.77 Peak Volume (ac-ft) 23.2 6.9 6.4 1.7 1.7 13.6 Hydrograph of peak 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 688 Percent Spillway Capacity 0.4 0.2 0.2 0.0 0.0 0.3 Red Mountain Freeway Levee at McDowell Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 2 14 15 10 16 36 17 34 18 15 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 99 0 MEAN 3 0 MAX 37 0 MIN 0 0 AC_FT 196 0 WTR YR 2023 TOTAL DEC 2 JAN 3 20 16 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 16 13 2 17 9 26 5 1 6 13 11 5 16 7 2 3 3 35 1 30 0 69 294 58 2 32 0 116 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 689 ------16 1 27 0 31 56 2 27 0 110 1 MAX --0 0 0 0 0 37 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --31 1 35 0 62 584 Red Mountain Freeway Levee at McDowell Road, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 21 17 13 18 2 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 1 0 MAX 23 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR 2 1 MAY JUN JUL AUG SEP 1 1 2 1 6 1 1 1 0 4 0 0 0 7 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 690 ------0 2 0 23 0 2 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 --0 14 0 Red Mountain Freeway Levee at McDowell Road, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.0 0.0 2 0.0 0.0 3 0.0 0.0 4 0.0 0.0 5 0.0 0.0 6 0.0 0.0 7 0.0 0.0 8 0.0 0.0 9 0.0 0.0 10 0.0 0.0 11 0.0 0.0 12 0.0 0.0 13 0.0 0.0 14 0.0 0.0 15 0.5 0.0 16 2.1 0.0 17 1.7 0.0 18 0.5 0.0 19 0.0 0.0 20 0.0 0.0 21 0.0 0.0 22 0.0 0.0 23 0.0 0.0 24 0.0 0.0 25 0.0 0.0 26 0.0 0.0 27 0.0 0.0 28 0.0 0.0 29 0.0 0.0 30 0.0 0.0 31 0.0 --MEAN 0.2 0.0 MAX 2.2 0.0 MIN 0.0 0.0 WTR YR 2023 MEAN DEC 0.0 0.1 0.0 0.5 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 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.0 0.03 JAN 0.1 0.6 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 0.2 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 0.0 0.0 0.1 1.3 0.0 MAX Daily Mean Values FEB MAR APR 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.3 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 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 0.1 0.4 0.0 0.0 0.2 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 --0.0 0.0 --0.0 --0.0 0.0 0.0 0.6 0.6 0.0 0.0 0.0 0.0 2.24 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 691 MAY 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 JUN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 JUL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 AUG 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SEP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 1.8 0.0 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 15.28 Years | 5,582 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 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 2023 Page 692 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 2023 Page 693 2020 2025 WY2023 Events Date of Peak 10/16 3/15 9/12 Peak Gage Height (feet) 2.03 0.90 1.94 Peak Volume (ac-ft) 43.1 15.1 40.3 Hydrograph of peak 2023 impoundment event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 694 Percent Spillway Capacity 1.1 0.3 1.8 Red Mountain Freeway Levee at McKellips Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 --11 12 13 14 15 10 16 41 17 36 18 1 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 88 0 MEAN 3 0 MAX 41 0 MIN 0 0 AC_FT 174 0 WTR YR 2023 TOTAL DEC JAN Daily Mean Values FEB MAR APR MAY JUN JUL AUG 4 40 39 11 --- 0 0 0 0 0 183 0 0 0 0 1 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 695 ------0 0 0 0 0 1 0 0 4 0 1 MAX SEP --0 0 0 0 0 43 0 0 0 0 0 MIN --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --94 3 43 0 187 363 Red Mountain Freeway Levee at McKellips Road, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 --11 12 13 14 15 12 16 42 17 31 18 5 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 3 0 MAX 43 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN 1 6 1 Daily Mean Values FEB MAR APR 1 1 MAY JUN JUL AUG 3 46 36 18 2 --1 0 0 0 1 0 10 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 696 ------0 0 0 60 0 15 0 MIN SEP --0 0 0 0 0 0 0 --0 0 0 0 10 0 0 0 0 --3 60 0 Red Mountain Freeway Levee at McKellips Road, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.3 0.3 2 0.3 0.3 3 0.3 0.3 4 0.3 0.3 5 0.3 0.3 6 0.3 0.3 7 0.3 0.3 8 0.3 0.3 9 0.3 0.3 10 --0.3 11 0.3 0.3 12 0.3 0.3 13 0.3 0.3 14 0.3 0.3 15 0.8 0.3 16 2.0 0.3 17 1.6 0.3 18 0.6 0.3 19 0.3 0.3 20 0.3 0.3 21 0.3 0.3 22 0.3 0.3 23 0.3 0.3 24 0.3 0.3 25 0.3 0.3 26 0.3 0.3 27 0.3 0.3 28 0.3 0.3 29 0.3 0.3 30 0.3 0.3 31 0.3 --MEAN 0.4 0.3 MAX 2.0 0.3 MIN 0.3 0.3 WTR YR 2023 MEAN DEC 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.33 JAN 0.4 0.6 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.0 0.3 0.3 0.3 0.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.3 MAX Daily Mean Values FEB MAR APR 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.0 0.4 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 --0.3 0.3 --0.3 --0.3 0.3 0.3 0.3 0.9 0.3 0.3 0.3 0.3 2.52 MIN 0.31 FCDMC Annual Surface Water Report, Water Year 2023 Page 697 MAY 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 JUN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 JUL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.3 AUG 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 SEP 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 2.1 1.8 1.0 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.5 2.5 0.3 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 15.32 Years | 5,597 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 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 2023 Page 698 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 2023 Page 699 2020 2025 WY2023 Events Date of Peak 10/15 12/4 1/1 1/17 2/22 2/26 3/2 3/15 9/12 Peak Gage Height (feet) 1.99 0.96 1.09 0.86 0.91 0.86 1.39 1.31 1.09 Peak Volume (ac-ft) 99.3 55.1 59.0 52.0 53.6 52.0 70.2 66.3 59.0 Hydrograph of peak 2023 impoundment event, 10/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 700 Percent Spillway Capacity 2.9 1.5 1.6 1.3 1.4 1.3 2.1 2.0 1.6 Red Mountain Freeway Levee at Brown Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 22 16 44 17 43 18 43 19 42 20 42 21 42 22 21 23 24 25 26 27 28 29 30 31 --TOTAL 300 0 MEAN 10 0 MAX 46 0 MIN 0 0 AC_FT 595 0 WTR YR 2023 TOTAL DEC 10 42 43 42 42 42 41 41 41 31 42 42 42 42 42 41 41 21 JAN 43 43 42 42 42 42 41 21 Daily Mean Values FEB MAR APR 7 43 42 42 42 41 41 41 41 21 10 41 42 43 42 42 42 42 42 42 41 21 10 42 43 42 21 10 42 43 43 21 MAY JUN JUL 10 699 765 23 25 44 45 0 0 1386 1518 2988 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 701 SEP 41 17 4 44 42 40 20 40 43 42 41 42 21 43 21 ------381 14 44 0 755 AUG 21 20 590 19 45 0 1170 8 MAX --0 0 0 0 0 46 0 0 0 0 0 MIN --0 0 0 0 0 0 3 --41 3 209 1 0 7 42 43 45 0 0 0 82 7 414 AC_FT 5927 Red Mountain Freeway Levee at Brown Road, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 33 16 58 17 47 18 46 19 44 20 42 21 42 22 21 23 24 25 26 27 28 29 30 31 --MEAN 11 0 MAX 99 0 MIN 0 0 WTR YR 2023 MEAN DEC 9 41 48 41 40 41 39 38 37 28 43 44 43 42 41 39 38 20 JAN 47 46 43 42 41 40 38 20 Daily Mean Values FEB MAR APR 9 51 43 42 40 39 38 37 37 19 9 37 42 46 43 42 42 41 40 41 39 20 9 42 45 42 21 9 41 47 44 22 MAY JUN 10 22 55 0 8 25 59 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 702 AUG SEP 39 15 5 53 43 36 18 37 47 41 39 40 20 46 23 ------14 54 0 99 JUL 19 17 19 70 0 MIN --0 0 0 0 0 0 0 --0 0 0 1 39 0 4 0 46 0 --7 59 0 Red Mountain Freeway Levee at Brown Road, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.3 0.3 2 0.3 0.3 3 0.3 0.3 4 0.3 0.3 5 0.3 0.3 6 0.3 0.3 7 0.3 0.3 8 0.3 0.3 9 0.3 0.3 10 0.3 0.3 11 0.3 0.3 12 0.3 0.3 13 0.3 0.3 14 0.3 0.3 15 0.8 0.3 16 1.0 0.3 17 0.7 0.3 18 0.7 0.3 19 0.6 0.3 20 0.6 0.3 21 0.6 0.3 22 0.5 0.3 23 0.3 0.3 24 0.3 0.3 25 0.3 0.3 26 0.3 0.3 27 0.3 0.3 28 0.3 0.3 29 0.3 0.3 30 0.3 0.3 31 0.3 --MEAN 0.4 0.3 MAX 2.0 0.3 MIN 0.3 0.3 WTR YR 2023 MEAN DEC 0.3 0.3 0.5 0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.4 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 1.0 0.3 0.37 JAN 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.6 0.7 0.6 0.6 0.6 0.5 0.5 0.6 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.5 1.1 0.3 MAX Daily Mean Values FEB MAR APR 0.3 0.4 0.3 0.3 0.8 0.3 0.3 0.6 0.3 0.3 0.6 0.3 0.3 0.5 0.3 0.3 0.5 0.3 0.3 0.5 0.3 0.3 0.5 0.3 0.3 0.5 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.6 0.5 0.3 0.6 0.7 0.3 0.6 0.5 0.3 0.4 0.5 0.3 0.3 0.5 0.3 0.3 0.4 0.3 0.6 0.3 0.3 0.7 0.3 0.3 0.6 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.7 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 --0.3 0.3 --0.3 --0.4 0.4 0.3 0.9 1.4 0.3 0.3 0.3 0.3 1.99 MIN 0.32 FCDMC Annual Surface Water Report, Water Year 2023 Page 703 MAY 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 JUN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 JUL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.3 0.3 0.3 0.3 0.5 0.3 AUG 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.7 0.3 SEP 0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.9 0.6 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.4 1.1 0.3 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 35.01 Years | 12,787 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 2023 Page 704 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 2023 Page 705 2010 2015 2020 2025 WY2023 Events Date of Peak 10/15 1/2 3/2 7/27 Peak Gage Height (feet) 2.03 9.71 0.74 2.03 Peak Volume (ac-ft) 5.3 447.8 1.0 5.3 Hydrograph of peak 2023 impoundment event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 706 Percent Spillway Capacity 0.1 11.7 0.0 0.1 Rittenhouse FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --TOTAL 7 0 MEAN 0 0 MAX 22 0 MIN 0 0 AC_FT 13 0 WTR YR 2023 TOTAL DEC 1 3 JAN 20 103 85 13 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 470 1 1 4 4 0 6 0 7 237 222 7 105 0 440 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 707 ------0 0 0 0 0 1 1 0 6 0 3 MAX --0 0 0 0 0 105 0 0 0 0 0 MIN --0 0 0 0 0 0 4 0 22 0 7 AC_FT Rittenhouse FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 16 1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 5 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN 29 409 177 5 Daily Mean Values FEB MAR APR MAY JUN JUL AUG SEP 0 0 0 --0 0 0 1 0 1 0 2 20 465 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 708 ------0 0 0 465 0 1 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 5 0 Rittenhouse FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.5 0.2 16 0.6 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.3 0.2 MAX 2.0 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.3 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 1.0 0.2 0.30 JAN 1.8 9.4 7.1 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 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.8 9.8 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.3 0.2 0.2 1.0 0.2 0.2 0.2 0.2 9.84 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2023 Page 709 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.3 2.0 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 SEP 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 Roeser Road at 23rd Avenue Basin, ID #66807 Site Data LOCATION Located on the basin at the northeast corner of Roeser Rd and 23 rd 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 8.00 Years | 2,922 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 2023 Page 710 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 2023 Page 711 2025 WY2023 Events Date of Peak 10/16 12/3 12/28 3/1 8/16 9/1 Peak Gage Height (feet) 1.65 1.40 0.72 0.87 1.72 1.00 Peak Volume (ac-ft) 18.7 15.9 8.2 9.9 19.5 11.4 Hydrograph of peak 2023 impoundment event, 08/16/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 712 Percent Spillway Capacity 13.7 11.7 6.1 7.3 14.3 8.4 Roeser Road at 23rd Avenue Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN ----0 0 0 0 0 0 0 0 0 0 0 MAX --0 0 0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 --0 0 0 0 0 MIN NOTE: There is currently no discharge rating at this location. FCDMC Annual Surface Water Report, Water Year 2023 Page 713 0 Roeser Road at 23rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 16 5 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 19 0 MIN 0 0 WTR YR 2023 MEAN DEC JAN Daily Mean Values FEB MAR APR 1 MAY JUN JUL AUG SEP 1 2 2 1 1 1 0 16 0 0 0 6 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 714 ------0 6 0 20 0 10 0 MIN --0 0 0 0 0 0 0 --0 0 0 0 0 0 0 20 0 --0 11 0 Roeser Road at 23rd Avenue Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.2 0.2 2 0.2 0.2 3 0.2 0.2 4 0.2 0.2 5 0.2 0.2 6 0.2 0.2 7 0.2 0.2 8 0.2 0.2 9 0.2 0.2 10 0.2 0.2 11 0.2 0.2 12 0.2 0.2 13 0.2 0.2 14 0.2 0.2 15 0.4 0.2 16 0.6 0.2 17 0.2 0.2 18 0.2 0.2 19 0.2 0.2 20 0.2 0.2 21 0.2 0.2 22 0.2 0.2 23 0.2 0.2 24 0.2 0.2 25 0.2 0.2 26 0.2 0.2 27 0.2 0.2 28 0.2 0.2 29 0.2 0.2 30 0.2 0.2 31 0.2 --MEAN 0.2 0.2 MAX 1.6 0.2 MIN 0.2 0.2 WTR YR 2023 MEAN DEC 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 1.4 0.2 0.23 JAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 0.2 MAX Daily Mean Values FEB MAR APR 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 --0.2 0.2 --0.2 --0.2 0.2 0.2 0.6 0.9 0.2 0.2 0.2 0.2 1.72 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2023 Page 715 MAY 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 JUN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 JUL 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 AUG 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.7 0.2 SEP 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 1.0 0.2 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 34.79 Years | 12,707 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 2023 Page 716 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 2023 Page 717 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 718 Percent Total Capacity Saddleback FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC JAN 0 0 0 0 0 0 Daily Mean Values FEB MAR APR 0 0 0 0 0 MEAN FCDMC Annual Surface Water Report, Water Year 2023 Page 719 ------0 0 0 0 0 0 0 0 0 0 0 MAX MAY --0 0 0 0 0 0 0 0 0 0 0 MIN JUN JUL --0 0 0 0 0 0 0 0 0 0 0 AC_FT AUG SEP 0 0 0 0 0 --0 0 0 0 0 0 Saddleback FRS, volume data Volume, in acre feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --MEAN 0 0 MAX 48 0 MIN 0 0 WTR YR 2023 MEAN DEC 0 0 0 0 JAN Daily Mean Values FEB MAR APR 0 0 0 MAX FCDMC Annual Surface Water Report, Water Year 2023 Page 720 ------0 0 0 48 0 0 0 MIN --0 0 0 0 MAY JUN JUL AUG SEP 0 0 0 --0 0 0 0 0 0 0 0 0 --0 0 0 Saddleback FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 DAY OCT NOV 1 0.3 0.3 2 0.3 0.3 3 0.3 0.3 4 0.3 0.3 5 0.3 0.3 6 0.3 0.3 7 0.3 0.3 8 0.3 0.3 9 0.3 0.3 10 0.3 0.3 11 0.3 0.3 12 0.3 0.3 13 0.3 0.3 14 0.3 0.3 15 0.3 0.3 16 0.3 0.3 17 0.3 0.3 18 0.3 0.3 19 0.3 0.3 20 0.3 0.3 21 0.3 0.3 22 0.3 0.3 23 0.3 0.3 24 0.3 0.3 25 0.3 0.3 26 0.3 0.3 27 0.3 0.3 28 0.3 0.3 29 0.3 0.3 30 0.3 0.3 31 0.3 --MEAN 0.3 0.3 MAX 0.5 0.3 MIN 0.3 0.3 WTR YR 2023 MEAN DEC 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.30 JAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX Daily Mean Values FEB MAR APR 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 --0.3 0.3 --0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.54 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2023 Page 721 MAY 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 JUN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 JUL 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 AUG 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 SEP 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 Salt River below Granite Reef Dam, ID #75307 Site Data LOCATION Located about ½ mile downstream from Granite Reef Diversion structure DRAINAGE AREA 12,919 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 11.50 Years | 4,199 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 30,748 cfs | 19.25 feet | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 722 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 2023 Page 723 2025 WY2023 Events Date of Peak 1/17 3/23 Peak Gage Height (feet) 7.67 19.25 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 724 Peak Discharge (cfs) 691 30748 Salt River below Granite Reef Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 0 0 0 0 0 29287 Daily Mean Values FEB MAR APR MAY 6139 142 360 6139 172 647 6327 984 1005 6380 1405 1024 5671 1224 1016 7214 890 1329 7841 1016 2044 6633 592 2328 6914 106 2343 5699 44 2387 4909 11 2372 5642 2328 5743 2738 5189 4530 3954 6062 3819 161 12491 2906 3 11041 932 10475 618 10364 625 10617 522 12433 553 23968 589 19122 480 6098 461 4839 719 4634 713 4820 608 --- 5234 807 --- 6044 471 --- 6219 --164 0 18091 10521 6587 5 0 5836 3507 212 691 0 30748 8501 1495 0 0 0 207 0 325 0358833208694 13065 MEAN 802 MAX 30748 MIN JAN FCDMC Annual Surface Water Report, Water Year 2023 Page 725 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 580916 0 AUG SEP Salt River at Val Vista Drive, ID #39507 Site Data LOCATION Located north of SR202L and west of Val Vista Drive DRAINAGE AREA 12,951 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 12.47 Years | 4,553 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 35,564 cfs | 14.13 feet | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 726 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 2023 Page 727 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 3/23 14.13 35564 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 728 Salt River at Val Vista Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC --- ------0 0 0 0 0 37643 Daily Mean Values FEB MAR APR MAY 9275 402 9282 212 9427 1511 20 9546 2453 23 8666 2300 18 10253 1698 45 11005 1877 282 9762 1309 510 10126 304 607 8856 134 748 7814 114 827 8656 18 922 8702 1294 8233 2926 6754 4350 6508 12573 5521 --11005 2289 10300 1611 --10227 1492 --10497 1216 --14816 1221 29036 1290 28119 973 9978 734 8114 1236 7694 1367 7821 973 ----- 8037 1511 ----- 9043 722 --- 9253 --0 0 19908 16501 12331 0 0 6422 5501 398 0 0 35564 11592 2580 0 0 0 511 0 0 0394879327311 24459 MEAN 1031 MAX 35564 MIN JAN FCDMC Annual Surface Water Report, Water Year 2023 Page 729 JUN JUL --0 0 0 0 0 --0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 746649 0 AUG SEP Salt River at Priest Drive, ID #67307 Site Data LOCATION Located on the Priest Drive Bridge DRAINAGE AREA 13,286 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 29.82 Years | 10,890 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 2023 Page 730 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 2023 Page 731 2015 2020 2025 WY2023 Events Date of Peak 3/1 3/23 7/27 8/28 9/26 Peak Gage Height 3.28 11.69 3.49 3.45 3.36 Peak Discharge (cfs) 889 63246 549 455 295 Hydrograph of peak WY 2023 flow event, 03/23/2023 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 n/a 20,500 55,000 90,000 140,000 169,000 FCDMC Annual Surface Water Report, Water Year 2023 Page 732 Salt River at Priest Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 DAY OCT NOV 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 MEAN 0 0 MAX 0 0 MIN 0 0 AC_FT 0 0 WTR YR 2023 TOTAL DEC 121 260 161 543 18 470 0 1077 50539 Daily Mean Values FEB MAR APR MAY 119 10265 1272 185 10241 787 10189 639 11000 2828 9282 3448 11126 2677 12987 2683 4693 11822 2815 7198 11177 1630 7309 10346 769 7320 8332 509 7258 9576 398 7208 9698 353 7544 9483 352 9462 7602 330 11204 7197 389 16950 6912 319 16048 2666 720 14630 1978 79 62 14447 1550 14681 1554 17980 1258 29209 1318 38 33397 1354 12681 1097 8814 1075 8007 1645 8031 1708 --- 8740 1643 --- 9934 1888 --- 10253 --291 100 29330 18797 22997 9 4 9461 6266 742 351 329 63246 14713 20269 0 0 0 598 0 576 199581756372833 45613 MEAN 1385 MAX 63246 MIN JAN 81 209 See USGS Water-Data Report for official data for this site. FCDMC Annual Surface Water Report, Water Year 2023 Page 733 JUN JUL AUG SEP 7 3 4 31 57 --0 0 0 0 0 2 5 61 6 12 5 --31 70 92 1 2 3 549 455 295 0 0 0 62 140 183 0 AC_FT 100243 Salt River at 7th Avenue, ID #68007 Site Data LOCATION Located on 7th Avenue Bridge DRAINAGE AREA 13,326 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 11.68 Years | 4,267 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 2023 Page 734 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 2023 Page 735 2025 WY2023 Events Date of Peak 3/2 3/23 7/27 9/12 Peak Gage Height 3.91 20.44 0.76 0.83 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 736 Peak Discharge (cfs) 18 39558 35 40 Salt River at 7th Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --10 2639 53 2 14 26 2485 14 3 9 2270 4 38 --2485 159 5 2 --1673 266 6 --2608 177 7 3361 156 8 207 2645 169 9 1252 2632 87 10 1323 2363 12 11 1308 1320 12 1305 2086 2 13 1269 2148 2 14 --1388 2076 15 --1 2881 1186 16 6 4794 1010 3 17 9 8701 988 18 5 --- 8680 275 42 19 ----- 7527 163 2 20 ----7451 105 21 --7589 96 22 --9808 72 23 16264 70 24 15215 74 25 5381 56 26 2267 38 27 1839 97 3 28 17 1631 101 29 3 --- 2013 85 30 ----- 2772 112 31 ------- 2818 -----------------------------------------------------------------------------------TOTAL 0 0 68 24 1 11571 37320 1137 0 3 3 4 MEAN 0 0 2 1 0 3733 1244 37 0 0 0 0 MAX 0 0 63 21 6 39558 3833 465 0 35 35 40 MIN 0 0 0 0 0 0 27 0 0 0 0 0 AC_FT 0 0 135 48 1229522 74024 2256 0 5 6 8 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 15427 MEAN 423 MAX 39558 MIN 0 AC_FT 306005 FCDMC Annual Surface Water Report, Water Year 2023 Page 737 Salt River at 51st Avenue, ID #5307 Site Data LOCATION Located at the 51st Avenue crossing of the Salt River DRAINAGE AREA 13,425 mi 2 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 12.43 Years | 4,540 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 2023 Page 738 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 2023 Page 739 2025 WY2023 Events Date of Peak 10/15 12/28 1/16 3/2 3/23 5/5 Peak Gage Height 2.40 2.84 2.41 3.09 15.21 3.42 Hydrograph of peak WY 2023 flow event, 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 740 Peak Discharge (cfs) 31 119 33 161 39432 232 Salt River at 51st Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6 5 28 3082 23 2 39 3268 3 3366 4 3761 52 5 2981 193 6 4037 149 7 7 4756 112 8 11 4200 125 9 --4114 65 10 --3947 11 4 2473 12 3306 13 3335 14 3288 15 8 2295 16 18 1989 17 12 1963 18 11 614 --19 12 180 20 13 101 21 3263 69 22 8432 38 23 14809 --24 14836 24 2 25 4573 17 26 2000 27 7 1825 30 28 24 19 1782 64 29 17 --- 2087 33 30 14 --- 2769 94 31 --14 --- 2980 -----------------------------------------------------------------------------------TOTAL 80 45 69 5 26 59400 57448 719 0 0 2 0 MEAN 3 2 2 0 1 1967 1915 23 0 0 0 0 MAX 31 11 119 0 19 39432 5477 232 0 10 11 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 159 90 136 9 52117817113947 1425 0 0 4 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 11779 MEAN 323 MAX 39432 MIN 0 AC_FT 233639 FCDMC Annual Surface Water Report, Water Year 2023 Page 741 Salt River at 67th Avenue, ID #5807 Site Data LOCATION Located at the 67th Avenue crossing of the Salt River DRAINAGE AREA 13,434 mi2 STREAM TYPE Culvert in Channelized Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Salt SECTION/TOWNSHIP/RANGE S30 T1N R2E LATITUDE N 33° 23' 51.8" | +33.39773 LONGITUDE W 112° 12' 12.6" | -112.20351 ARIZONA STATE PLANE E 612465 | N 872360 USGS QUAD SHEET Fowler 7.5-Minute STREAMGAGE INSTALLATION DATE 07/14/2008 - WY 2008 PERIOD OF AVAILABLE DATA RECORD 07/14/2008 - Current LENGTH OF AVAILABLE DATA RECORD 15.21 Years | 5,557 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 975.107 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 13.00 FEET | 28,848 CFS | 03/23/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 742 Watershed Map Salt River at 67th Avenue - water year peak 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 2023 Page 743 2020 2025 WY2023 Events Date of Peak Peak Gage Height 3/23 13.00* * Station destroyed by flow event, maximum estimated Hydrograph of peak WY 2023 flow event, 03/23/2023 *Station destroyed during event. FCDMC Annual Surface Water Report, Water Year 2023 Page 744 Peak Discharge (cfs) 28848 Salt River at 67th Avenue, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 --729 ------------13 --2175 ------------14 --2322 ------------15 --3228 ------------16 --9836 ------------17 --16115 ------------18 17495 ------------19 16028 ------------20 --16106 ------------21 --16310 ------------22 --18211 ------------23 --22723 ------------24 --------------25 --------------26 --------------27 --------------28 --------------29 ----------------30 ----------------31 -----------------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 37206 ------------MEAN 0 0 0 0 0 12002 ------------MAX 0 0 0 0 0 --------------MIN 0 0 0 0 0 0 ------------AC_FT 0 0 0 0 0737974 -----------------------------------------------------------------------------------------WTR YR 2023 TOTAL 37206 MEAN 15483 MAX --- MIN 0 AC_FT 737974 *Station was removed after it was destroyed by the Spring Dam release. Unable to measure entire event due to damage. Station was unable to record the entire year. Total Acre Feet likely inaccurate. FCDMC Annual Surface Water Report, Water Year 2023 Page 745 Sand Tank Wash at I-8, ID #40007 Site Data LOCATION Located in Gila Bend along I-8 DRAINAGE AREA 185 mi2 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 22.34 Years | 8,158 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 NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 14,000 cfs | 7.69 feet | 08/14/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 746 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 747 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event, No flow recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 748 Peak Discharge (cfs) Sand Tank Wash at I-8, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 749 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 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 29.54 Years | 10,791 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 2023 Page 750 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 2023 Page 751 2015 2020 2025 WY2023 Events Date of Peak 12/4 9/1 Peak Gage Height 1.37 1.47 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 752 Peak Discharge (cfs) 42 47 Santa Cruz River at SR84, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 10 2 3 4 26 5 3 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 --------4 -------------------------------------------------------------------------------TOTAL 0 0 29 0 0 0 0 0 0 0 4 10 MEAN 0 0 1 0 0 0 0 0 0 0 0 0 MAX 0 0 42 0 0 0 0 0 0 0 43 47 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 58 0 0 0 0 0 0 0 8 21 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 44 MEAN 0 MAX 47 MIN 0 AC_FT 87 FCDMC Annual Surface Water Report, Water Year 2023 Page 753 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 33.59 Years | 12,268 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 1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,698 cfs | 5.70 feet | 08/13/2014 FCDMC Annual Surface Water Report, Water Year 2023 Page 754 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 2023 Page 755 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 756 Peak Discharge (cfs) Sauceda Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 1 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 1 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 29 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 2 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 1 MEAN 0 MAX 29 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2023 Page 757 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 27.03 Years | 9,874 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 2023 Page 758 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 2023 Page 759 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/28 1/1 1/16 2/14 3/1 3/22 Peak Gage Height (feet) 1.10 0.65 0.67 0.90 0.82 1.05 0.52 Peak Discharge (cfs) 175 17 22 96 71 153 3 Hydrograph of peak WY 2023 flow event, 10/16/2022 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 2023 Page 760 Scatter Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 17 2 1 3 4 5 6 7 8 9 10 --11 12 13 14 3 15 10 16 44 4 17 2 18 19 20 21 22 23 24 25 26 27 28 2 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 54 0 3 7 3 18 0 0 0 0 0 0 MEAN 2 0 0 0 0 1 0 0 0 0 0 0 MAX 175 0 17 96 71 153 0 0 0 0 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 107 0 5 15 6 35 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 85 MEAN 0 MAX 175 MIN 0 AC_FT 168 FCDMC Annual Surface Water Report, Water Year 2023 Page 761 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 21.56 Years | 7,873 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 2023 Page 762 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 2023 Page 763 2020 2025 WY2023 Events Date of Peak 1/1 1/17 3/4 3/22 Peak Gage Height (feet) 1.07 2.76 1.14 3.21 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 764 Peak Discharge (cfs) 84 420 92 578 Seven Springs Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 21 16 2 54 3 32 4 16 5 6 7 8 9 10 11 12 13 14 15 16 13 23 17 54 18 19 1 20 21 21 29 22 126 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 89 22 297 0 0 0 0 0 0 MEAN 0 0 0 3 1 10 0 0 0 0 0 0 MAX 0 0 0 420 58 578 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 176 44 588 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 407 MEAN 1 MAX 578 MIN 0 AC_FT 808 FCDMC Annual Surface Water Report, Water Year 2023 Page 765 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 35.89 | 13,109 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 2023 Page 766 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 2023 Page 767 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 768 Percent Spillway Capacity Signal Butte FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 769 Signal Butte FRS, volume data Volume, in acre feet, Water Year October 2022 to September 2023 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 2023 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 770 Signal Butte FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 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 -0.1 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4 -0.2 -0.2 1.1 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5 -0.2 -0.2 1.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 6 -0.2 -0.2 0.8 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 7 -0.2 -0.2 0.3 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 8 -0.2 -0.2 -0.0 -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 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 -0.1 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 MAX -0.2 -0.2 1.5 -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 2023 MEAN -0.24 MAX 1.48 MIN -0.25 FCDMC Annual Surface Water Report, Water Year 2023 Page 771 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 6.76 Years | 2,468 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 2023 Page 772 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 2023 Page 773 2025 WY2023 Events Date of Peak 10/16 3/2 Peak Gage Height 1.07 0.97 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 774 Peak Discharge (cfs) 24 17 Siphon Draw Wash at Signal Butte Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 2 5 3 4 6 5 6 7 8 9 10 11 12 13 14 15 3 16 6 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 9 0 6 4 0 5 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 24 0 9 12 0 17 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 18 0 12 8 0 10 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 24 MEAN 0 MAX 24 MIN 0 AC_FT 48 FCDMC Annual Surface Water Report, Water Year 2023 Page 775 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 28.28 Years | 10,329 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 2023 Page 776 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 777 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2023 flow event, No runoff recorded during Water Year 2023. Flood Flow Frequency Flood Flow Frequency FEMA 2-year 5-year 10-year 1,730 FCDMC Annual Surface Water Report, Water Year 2023 Page 778 20-year 50-year 100-year 2,500 3,650 Skunk Creek near New River, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 779 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 8.19 Years | 2,992 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 2023 Page 780 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 2023 Page 781 2025 WY2023 Events Date of Peak 10/16 1/1 1/17 2/15 3/3 3/11 3/22 8/31 Peak Gage Height 1.30 1.68 1.60 1.28 2.23 1.70 2.20 3.94 Hydrograph of peak WY 2023 flow event, 08/31/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 782 Peak Discharge (cfs) 100 206 181 98 618 212 391 1435 Skunk Creek at Desert Hills Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 46 16 64 2 55 35 3 4 5 6 7 8 9 10 11 11 12 2 13 14 15 30 19 16 19 38 6 17 8 78 18 6 19 3 20 21 22 73 23 4 24 25 26 27 28 29 --30 --31 --------55 -------------------------------------------------------------------------------TOTAL 26 0 0 253 19 145 0 3 0 0 55 64 MEAN 1 0 0 8 1 5 0 0 0 0 2 2 MAX 100 0 0 206 98 391 0 38 0 0 1435 1057 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 52 0 0 502 37 289 0 5 0 0 108 126 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 564 MEAN 2 MAX 1435 MIN 0 AC_FT 1120 FCDMC Annual Surface Water Report, Water Year 2023 Page 783 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 8.12 Years | 2,965 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 11,278 cfs | 6.87 feet | 07/23/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 784 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 2023 Page 785 2025 WY2023 Events Date of Peak 1/1 1/17 3/2 3/11 3/22 9/1 Peak Gage Height 2.86 2.01 2.41 2.21 3.11 3.71 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 786 Peak Discharge (cfs) 656 171 356 253 663 1156 Skunk Creek at Carefree Highway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 83 9 207 2 28 99 3 4 5 6 7 8 9 10 11 16 12 19 13 14 15 16 17 27 18 19 20 21 22 159 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 138 0 302 0 0 0 0 0 207 MEAN 0 0 0 4 0 10 0 0 0 0 0 7 MAX 0 0 0 500 0 663 0 0 0 0 0 1156 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 273 0 600 0 0 0 0 0 410 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 647 MEAN 2 MAX 1156 MIN 0 AC_FT 1283 FCDMC Annual Surface Water Report, Water Year 2023 Page 787 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 7.72 Years | 2,820 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 07/23/2022 | 3,186 cfs | 6.78 feet GH FCDMC Annual Surface Water Report, Water Year 2023 Page 788 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 2023 Page 789 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 9/1 3.00 965 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 790 Skunk Creek at Dixileta Drive, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 143 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 0 143 MEAN 0 0 0 0 0 0 0 0 0 0 0 5 MAX 0 0 0 0 0 0 0 0 0 0 0 965 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 0 283 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 143 MEAN 0 MAX 965 MIN 0 AC_FT 283 FCDMC Annual Surface Water Report, Water Year 2023 Page 791 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 33.14 Years | 12,104 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 2023 Page 792 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 2023 Page 793 2005 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 9/1 2.13 986 Hydrograph of peak WY 2023 flow event, 09/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 794 Skunk Creek at I-17, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 139 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 9 0 0 0 0 0 0 0 139 MEAN 0 0 0 0 0 0 0 0 0 0 0 5 MAX 0 0 444 278 0 0 0 0 0 0 0 986 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 1 17 0 0 0 0 0 0 0 276 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 148 MEAN 0 MAX 986 MIN 0 AC_FT 294 FCDMC Annual Surface Water Report, Water Year 2023 Page 795 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 17.58 Years | 6,422 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 | 07/23/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 796 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 2023 Page 797 2020 2025 WY2023 Events Date of Peak 1/1 1/17 2/14 3/2 3/22 8/31 9/12 Peak Gage Height (feet) 2.94 1.52 1.47 1.82 2.55 7.09 3.14 Hydrograph of peak WY 2023 flow event, 08/31/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 798 Peak Discharge (cfs) 73 19 19 24 53 674 84 Skunk Tank Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 7 3 2 2 2 3 4 5 6 7 8 9 10 11 12 2 13 1 14 2 15 16 17 3 18 19 20 21 22 5 23 24 25 26 27 28 29 --30 --31 --------25 -------------------------------------------------------------------------------TOTAL 0 0 0 10 2 10 0 0 0 0 25 5 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 73 19 53 0 0 0 0 674 84 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 20 4 20 0 0 0 0 50 11 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 53 MEAN 0 MAX 674 MIN 0 AC_FT 105 FCDMC Annual Surface Water Report, Water Year 2023 Page 799 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 22.05 Years | 8,054 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 2023 Page 800 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 2023 Page 801 2020 2025 WY2023 Events Date of Peak 11/09 1/1 Peak Gage Height (feet) 0.32 1.02 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 802 Peak Discharge (cfs) 10 91 Sols Wash at SR71, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 7 1 2 3 4 5 6 7 8 9 4 10 11 12 13 14 15 1 16 17 18 19 20 --21 --22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 1 4 0 7 0 1 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 8 10 0 91 0 8 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 3 7 0 13 0 2 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 13 MEAN 0 MAX 91 MIN 0 AC_FT 25 FCDMC Annual Surface Water Report, Water Year 2023 Page 803 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 21.67 Years | 7,914 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 2023 Page 804 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 805 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event, No runoff recorded in Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 806 Peak Discharge (cfs) Sols Tributary near US93, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 807 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 28.16 Years | 10,285 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 2023 Page 808 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 2023 Page 809 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 3/15 2.34 1284 Hydrograph of peak WY 2023 flow event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 810 Sols Wash near Matthie, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 83 16 59 17 18 19 20 --21 --22 36 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 142 0 18 0 0 0 0 MEAN 0 0 0 0 0 5 0 1 0 0 0 0 MAX 0 0 0 0 0 1284 0 72 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 281 0 36 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 160 MEAN 0 MAX 1284 MIN 0 AC_FT 317 FCDMC Annual Surface Water Report, Water Year 2023 Page 811 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 15 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 6.78 Years | 2,475 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 | 08/17/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 812 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 2023 Page 813 2025 WY2023 Events Date of Peak 10/15 1/1 3/1 Peak Gage Height 2.75 2.78 1.88 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 814 Peak Discharge (cfs) 210 215 58 Sonoqui Wash near Hawes Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 24 3 2 1 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 16 12 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 28 0 0 25 0 4 0 0 0 0 0 0 MEAN 1 0 0 1 0 0 0 0 0 0 0 0 MAX 210 0 0 215 0 58 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 56 0 0 50 0 7 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 57 MEAN 0 MAX 215 MIN 0 AC_FT 113 FCDMC Annual Surface Water Report, Water Year 2023 Page 815 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 7.97 Years | 2,910 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 | 07/25/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 816 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 2023 Page 817 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 1/1 1.89 86 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 818 Sonoran Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 3 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 38 0 0 86 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 5 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 3 MEAN 0 MAX 86 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2023 Page 819 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 30.31 Years | 11,071 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 2023 Page 820 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 2023 Page 821 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 822 Peak Discharge (cfs) South Mountain Fan, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 823 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 35.75 Years | 13,059 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 2023 Page 824 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 2023 Page 825 2010 2015 2020 2025 WY2023 Events Date of Peak 10/16 12/4 1/2 1/17 2/15 2/26 3/2 3/16 7/27 9/1 9/12 Peak Gage Height (feet) 4.31 2.45 2.68 1.43 1.93 1.73 2.40 2.43 1.65 1.53 4.85 Peak Volume (ac-ft) 41.4 3.8 6.2 0.1 1.1 0.5 3.4 3.7 0.4 0.2 61.3 Hydrograph of peak 2023 impoundment event, 09/12/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 826 Percent Spillway Capacity 1.6 0.2 0.2 0.0 0.0 0.0 0.2 0.2 0.0 0.0 2.24 Spookhill FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 17 18 2 31 29 21 3 3 22 28 8 4 29 26 5 18 22 6 5 7 8 9 10 --11 12 1 3 13 4 --40 14 38 15 14 15 1 35 16 40 11 25 29 30 17 37 8 24 27 8 18 22 22 25 19 21 12 20 20 21 5 22 23 24 25 26 13 27 7 7 28 4 29 21 --30 21 --31 --19 -------------------------------------------------------------------------------------TOTAL 113 0 120 89 153 205 0 0 0 7 0 201 MEAN 4 0 4 3 5 7 0 0 0 0 0 7 MAX 40 0 30 31 26 30 0 0 0 24 0 43 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 225 0 238 176 303 406 0 0 0 14 0 398 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 887 MEAN 2 MAX 43 MIN 0 AC_FT 1760 FCDMC Annual Surface Water Report, Water Year 2023 Page 827 Spookhill FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 6 3 3 2 2 4 3 1 5 1 6 7 8 9 10 --11 12 13 --42 14 30 15 7 15 16 38 1 3 5 17 26 2 18 4 1 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 2 0 0 0 0 0 0 0 0 0 0 3 MAX 41 0 4 6 1 4 0 0 0 0 0 61 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 1 MAX 61 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 828 Spookhill FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 1.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.2 2 0.3 0.3 0.3 2.6 0.3 2.3 0.3 0.3 0.3 0.3 0.3 1.2 3 0.3 0.3 0.4 1.8 0.3 2.1 0.3 0.3 0.3 0.3 0.3 0.9 4 0.3 0.3 2.2 0.3 0.3 1.8 0.3 0.3 0.3 0.3 0.3 0.5 5 0.3 0.3 1.5 0.3 0.3 1.4 0.3 0.3 0.3 0.3 0.3 0.3 6 0.0 0.3 0.3 0.3 0.3 0.5 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 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 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 13 0.3 0.3 0.8 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 4.2 14 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3.9 15 1.5 0.3 0.4 0.3 1.2 0.3 0.3 0.3 0.3 0.3 0.3 3.2 16 4.2 0.3 0.3 0.8 1.8 2.3 0.3 0.3 0.3 0.3 0.3 2.5 17 3.7 0.3 0.3 0.7 1.6 2.1 0.3 0.3 0.3 0.3 0.3 0.8 18 2.0 0.3 0.0 0.3 1.4 1.7 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 1.3 0.9 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 1.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.0 0.3 0.3 0.3 0.5 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 0.0 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 0.0 0.3 1.0 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.7 0.3 0.3 0.3 0.3 0.6 0.3 0.3 28 0.3 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 1.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 1.2 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --1.1 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.6 0.3 0.5 0.5 0.6 0.7 0.3 0.3 0.3 0.3 0.3 0.8 MAX 4.3 0.3 2.5 2.7 1.9 2.4 0.3 0.3 0.3 1.6 0.6 4.8 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 2023 MEAN 0.45 MAX 4.85 MIN 0.28 FCDMC Annual Surface Water Report, Water Year 2023 Page 829 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 22.30 Years | 8,145 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 2023 Page 830 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 2023 Page 831 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 832 Peak Discharge (cfs) Stagecoach Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 833 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 26.80 Years | 9,790 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 2023 Page 834 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 2023 Page 835 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 10/15 2.43 0.3 0.5 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 836 Stoneridge Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 4 8 16 8 17 7 18 4 19 4 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 4 0 0 0 0 0 0 0 0 0 0 38 MEAN 0 0 0 0 0 0 0 0 0 0 0 1 MAX 20 0 0 0 0 0 0 0 0 0 0 8 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 8 0 0 0 0 0 0 0 0 0 0 74 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 42 MEAN 0 MAX 20 MIN 0 AC_FT 83 FCDMC Annual Surface Water Report, Water Year 2023 Page 837 Stoneridge Dam, volume data Volume, in acre feet, Water Year October 2022 to September 2023 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 2023 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 838 Stoneridge Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 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 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 16 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 17 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 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 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 2.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.4 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 2023 MEAN 1.30 MAX 2.43 MIN 1.30 FCDMC Annual Surface Water Report, Water Year 2023 Page 839 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 18.16 Years | 6,634 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 2023 Page 840 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 2023 Page 841 2020 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 842 Peak Discharge (cfs) Sun Valley Parkway at Northern, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 843 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 34.79 Years | 12,707 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) -5.0 feet Gage Height POINT OF ZERO FLOW (UNGATED ORIFICE) 15.0 feet Gage Height POINT OF ZERO FLOW (PRINCIPAL OUTLET TOWER) 36.5 feet Gage Height SPILLWAY ELEVATION 37.1 feet Gage Height TOP OF DAM ELEVATION 45.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2023 Page 844 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 2023 Page 845 2010 2015 2020 2025 WY2023 Events Date of Peak 1/1 1/17 3/1 3/16 8/18 9/1 Peak Gage Height (feet) 1.96 2.70 1.22 11.95 1.02 1.61 Peak Volume (ac-ft) 0.2 0.4 0.1 10.8 0.1 0.2 Hydrograph of peak WY 2023 impoundment event, 03/16/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 846 Percent Spillway Capacity 0.1 0.2 0.0 5.0 0.0 0.1 Sunnycove FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 847 Sunnycove FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 1 3 1 4 5 6 7 8 9 10 11 12 13 14 15 1 16 9 17 8 18 8 19 7 20 7 --21 7 --22 6 23 2 24 2 25 2 26 2 27 2 28 2 29 --2 30 --2 31 ----1 -----------------------------------------------------------------------------------MEAN 0 0 0 0 0 2 0 0 0 0 0 0 MAX 0 0 0 0 0 11 1 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 0 MAX 11 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 848 Sunnycove FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 1.3 1.2 0.3 5.0 0.0 0.0 0.0 0.0 1.5 2 0.0 0.0 0.0 1.8 1.1 1.2 4.9 0.0 0.0 0.0 0.0 1.5 3 0.0 0.0 0.0 1.8 1.1 1.0 3.5 0.0 0.0 0.0 0.0 1.4 4 0.0 0.0 0.0 1.7 1.0 1.0 2.1 0.0 0.0 0.0 0.0 1.4 5 0.0 0.0 0.0 1.6 0.9 0.8 1.9 0.0 0.0 0.0 0.0 1.3 6 0.0 0.0 0.0 1.5 0.8 0.7 1.7 0.0 0.0 0.0 0.0 1.2 7 0.0 0.0 0.0 1.4 0.6 0.2 1.4 0.0 0.0 0.0 0.0 1.1 8 0.0 0.0 0.0 1.3 0.1 0.0 1.2 0.0 0.0 0.0 0.0 1.0 9 0.0 0.0 0.0 1.1 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.8 10 0.0 0.0 0.0 1.0 0.0 0.0 0.9 0.0 0.0 0.0 0.0 0.6 11 0.0 0.0 0.0 0.9 0.0 0.0 0.7 0.0 0.0 0.0 0.0 0.3 12 0.0 0.0 0.0 0.8 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.1 13 0.0 0.0 0.0 0.3 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 0.2 0.0 0.0 0.9 0.0 1.6 0.0 0.0 0.0 0.0 0.0 0.0 16 1.0 0.0 0.0 1.1 0.0 11.1 0.0 0.0 0.0 0.0 0.0 0.0 17 1.0 0.0 0.0 2.6 0.0 10.5 0.0 0.0 0.0 0.0 0.0 0.0 18 0.9 0.0 0.0 2.5 0.0 10.3 0.0 0.0 0.0 0.0 0.5 0.0 19 0.8 0.0 0.0 2.4 0.0 10.2 0.0 0.3 0.0 0.0 0.2 0.0 20 0.8 0.0 0.0 2.4 0.0 10.1 0.0 --0.0 0.0 0.2 0.0 21 0.7 0.0 0.0 2.2 0.0 9.8 0.0 --0.0 0.0 0.2 0.0 22 0.7 0.0 0.0 2.2 0.0 9.2 0.0 0.8 0.0 0.0 0.2 0.0 23 0.7 0.0 0.0 2.1 0.0 6.2 0.0 0.8 0.0 0.0 0.0 0.0 24 0.6 0.0 0.0 2.0 0.0 5.7 0.0 0.5 0.0 0.0 0.0 0.0 25 0.5 0.0 0.0 1.9 0.0 5.6 0.0 0.0 0.0 0.0 0.0 0.0 26 0.3 0.0 0.0 1.7 0.0 5.5 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 1.6 0.0 5.4 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.9 1.5 0.0 5.4 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 1.1 1.4 --5.3 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 1.0 1.3 --5.2 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.9 1.3 --5.1 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.3 0.0 0.1 1.5 0.2 4.1 0.8 0.1 0.0 0.0 0.0 0.4 MAX 1.1 0.0 1.2 2.7 1.3 11.9 5.2 1.1 0.0 0.0 1.1 1.6 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 2023 MEAN 0.65 MAX 11.95 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2023 Page 849 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 26.65 Years | 9,735 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 2023 Page 850 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 851 WY2023 Events Date of Peak 11/4 11/27 12/14 Peak Gage Height (feet) 2.17 2.07 1.97 Peak Volume (ac-ft) 0.0 0.0 0.0 Hydrograph of peak WY 2023 impoundment event, 11/04/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 852 Percent Spillway Capacity 0.0 0.0 0.0 Sunridge Canyon Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 9 5 4 10 6 5 6 7 8 9 10 11 12 13 14 6 15 13 16 1 17 18 19 --20 --21 --22 --23 24 14 25 17 26 14 5 27 12 9 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 57 34 20 11 0 0 0 0 0 0 0 0 MEAN 2 1 1 0 0 0 0 0 0 0 0 0 MAX 37 32 28 24 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 113 67 40 22 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 122 MEAN 0 MAX 37 MIN 0 AC_FT 242 FCDMC Annual Surface Water Report, Water Year 2023 Page 853 Sunridge Canyon Dam, volume data Volume, in acre feet, Water Year October 2022 to September 2023 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 2023 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 854 Sunridge Canyon Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 3 1.2 1.4 1.2 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 4 1.2 1.5 1.2 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 5 1.2 1.2 1.2 1.2 1.2 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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 8 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 9 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 10 1.2 1.2 1.2 1.2 1.2 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 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 15 1.2 1.2 1.5 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 1.2 19 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 21 1.2 1.2 1.2 1.2 1.2 1.2 1.2 --1.2 1.2 1.2 1.2 22 1.2 1.2 1.2 1.2 1.2 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 1.3 1.2 1.2 1.2 1.2 24 1.5 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 25 1.7 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 26 1.6 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 27 1.5 1.5 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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 29 1.2 1.2 1.2 1.2 --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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 MAX 2.5 2.2 2.0 1.7 1.2 1.2 1.2 1.3 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 2023 MEAN 1.21 MAX 2.46 MIN 1.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 855 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 34.63 Years | 12,649 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 7 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,114.01 feet NAVD88 POINT OF ZERO FLOW (GATED 18-INCH ORIFICE) 0.0 feet Gage Height POINT OF ZERO FLOW (UNGATED 9-INCH ORIFICE) 8.75 feet Gage Height POINT OF ZERO FLOW (WEIR AT TOP OF TOWER) 19.75 feet Gage Height SPILLWAY ELEVATION 18.85 feet Gage Height TOP OF DAM ELEVATION 30.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2023 Page 856 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 2023 Page 857 2010 2015 2020 2025 WY2023 Events Date of Peak 10/16 1/3 1/17 2/15 2/26 3/2 3/15 5/19 5/31 8/18 9/1 Peak Gage Height (feet) 4.20 4.69 4.40 2.00 2.05 4.25 8.70 4.54 4.15 3.99 5.01 Peak Volume (ac-ft) 1.3 2.0 1.5 0.0 0.0 1.3 11.6 1.5 1.1 0.3 1.1 Hydrograph of peak 2023 impoundment event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 858 Percent Spillway Capacity 1.7 2.8 2.1 0.0 0.0 1.8 16.5 2.4 1.6 0.4 1.4 Sunset FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 16 10 ----2 18 17 ----3 1 10 17 ----4 5 3 16 ----5 3 15 ------6 2 14 ------7 1 14 ------8 1 13 ------9 12 ------10 10 ------11 7 ------12 5 ----13 3 ----14 1 3 ------15 6 16 10 ------16 17 17 7 ------17 9 18 5 ------18 2 16 4 ------19 1 6 3 ----20 2 ------21 1 --------22 1 ------23 ------24 ------25 ------26 9 ------27 8 --------28 15 6 --------29 17 ----------30 16 ----------31 --15 -------------------------------------------------------------------------------------TOTAL 35 0 75 121 59 154 0 0 0 0 0 0 MEAN 1 0 2 4 2 5 0 0 0 0 0 0 MAX 17 0 18 18 12 18 0 0 0 0 0 0 MIN 0 0 0 0 0 0 --0 ----0 --AC_FT 69 0 148 240 117 306 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 443 MEAN 1 MAX 18 MIN --- AC_FT 880 FCDMC Annual Surface Water Report, Water Year 2023 Page 859 Sunset FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 1 1 1 2 3 2 3 1 2 4 1 5 1 6 1 7 1 8 9 10 11 12 13 14 15 2 2 16 2 2 9 17 1 3 7 18 2 6 19 5 20 4 --21 4 --22 3 1 23 1 24 1 25 1 26 27 28 2 29 2 --30 1 --31 --1 -------------------------------------------------------------------------------------MEAN 0 0 0 0 0 2 0 0 0 0 0 0 MAX 3 0 3 4 0 12 0 2 1 0 0 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 0 MAX 12 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 860 Sunset FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.7 0.1 0.1 3.6 0.1 2.5 1.6 0.1 3.6 0.1 0.9 4.6 2 0.5 0.1 0.1 4.4 0.1 4.2 1.4 0.1 3.0 0.1 0.9 4.2 3 0.4 0.1 0.5 2.6 0.1 3.8 1.2 0.1 2.5 0.3 0.9 4.1 4 0.2 0.1 1.6 1.3 0.1 3.5 0.6 0.1 2.1 0.9 0.9 3.7 5 0.1 0.1 1.4 0.3 0.1 3.1 0.1 0.1 1.8 0.9 0.9 3.3 6 0.1 0.1 1.2 0.1 0.1 2.8 0.1 0.1 1.6 0.9 0.9 3.0 7 0.1 0.1 1.1 0.1 0.1 2.6 0.1 0.1 1.4 0.9 0.9 2.8 8 0.1 0.1 0.9 0.1 0.1 2.3 0.1 0.1 1.2 0.9 0.9 2.5 9 0.1 0.1 0.6 0.1 0.1 2.2 0.1 0.1 1.0 0.9 0.9 2.2 10 0.1 0.1 0.3 0.1 0.1 2.0 0.1 0.1 0.8 0.9 0.9 2.0 11 0.1 0.1 0.1 0.1 0.1 1.8 0.1 0.1 0.6 0.9 0.9 1.8 12 0.1 0.1 0.1 0.1 0.1 1.6 0.1 0.1 0.4 0.5 0.9 1.7 13 0.1 0.1 0.1 0.1 0.3 1.4 0.1 0.1 0.2 0.5 1.7 2.0 14 0.1 0.1 0.1 0.3 1.0 1.3 0.1 0.1 0.1 0.9 3.1 1.8 15 1.5 0.1 0.1 3.7 1.9 3.0 0.1 0.1 0.1 0.9 2.7 1.6 16 4.0 0.1 0.1 4.0 1.7 7.9 0.1 0.1 0.1 0.9 2.5 1.4 17 2.4 0.1 0.1 4.3 1.6 7.3 0.1 0.1 0.1 0.9 2.2 1.3 18 1.2 0.1 0.1 3.5 1.5 6.9 0.1 0.1 0.1 0.9 3.5 1.2 19 0.9 0.1 0.1 1.6 1.3 6.6 0.1 1.4 0.1 0.9 3.2 1.1 20 0.7 0.1 0.1 0.3 1.2 6.2 0.1 --0.1 0.9 3.0 1.0 21 0.2 0.1 0.1 0.1 1.1 5.9 0.1 --0.1 0.9 2.8 0.9 22 0.1 0.1 0.1 0.1 1.0 5.5 0.1 3.7 0.1 0.9 2.7 0.9 23 0.1 0.1 0.1 0.1 0.8 4.3 0.1 3.5 0.1 0.9 2.5 0.9 24 0.1 0.1 0.1 0.1 0.5 3.9 0.1 1.8 0.1 0.9 2.3 0.9 25 0.1 0.1 0.1 0.1 0.3 3.6 0.1 1.0 0.1 0.9 2.1 0.9 26 0.1 0.1 0.1 0.1 1.7 3.2 0.1 0.2 0.1 0.9 1.9 0.9 27 0.1 0.1 0.1 0.1 1.8 2.9 0.1 0.1 0.1 0.9 1.7 0.9 28 0.1 0.1 3.6 0.1 1.7 2.6 0.1 0.1 0.1 0.9 1.4 0.9 29 0.1 0.1 3.8 0.1 --2.3 0.1 0.1 0.1 0.9 1.2 0.9 30 0.1 0.1 3.4 0.1 --2.1 0.1 0.1 0.1 0.9 1.0 0.9 31 0.1 --3.0 0.1 --1.8 --2.2 --0.9 0.9 -------------------------------------------------------------------------------MEAN 0.5 0.1 0.8 1.0 0.7 3.6 0.2 0.8 0.7 0.8 1.7 1.9 MAX 4.2 0.1 4.3 4.7 2.0 8.7 1.8 4.5 3.8 0.9 4.0 5.0 MIN 0.1 0.1 0.1 0.1 0.1 1.2 0.1 0.1 0.1 0.1 0.9 0.9 -----------------------------------------------------------------------------WTR YR 2023 MEAN 1.07 MAX 8.70 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2023 Page 861 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 11.26 Years | 4,114 Days GAPS IN RECORD 12/26/2021 – 01/17/2022 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 2023 Page 862 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 2023 Page 863 2025 WY2023 Events Pressure Transducer Date of Peak Peak Gage Height Peak Discharge (cfs) Peak Gage Height 2.92 3.09 Peak Discharge (cfs) 629 706 none WY2023 Events Radar Date of Peak 3/1 3/22 Hydrograph of peak WY 2023 flow event, 03/22/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 864 Sycamore Creek Fire (Transducer Gage), runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 865 Sycamore Creek Fire (RADAR Gage), runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 44 --3 --4 --5 --6 --7 --8 --9 --10 --11 --12 --13 --14 --15 --16 --17 --18 --19 --20 --21 --22 93 --23 24 25 26 27 28 --29 ----30 ----31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 137 0 0 0 0 0 0 MEAN 0 0 0 0 0 4 0 0 0 0 0 0 MAX 0 0 0 0 0 706 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 0 272 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 137 MEAN 0 MAX 706 MIN 0 AC_FT 272 FCDMC Annual Surface Water Report, Water Year 2023 Page 866 Tatum Wash Basin Inflow, ID #58007 Site Data LOCATION Located near Shea Boulevard and 44th Street DRAINAGE AREA 2.0 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 29.33 Years | 10,712 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 1,400.203 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 2023 Page 867 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 2023 Page 868 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 869 Peak Discharge (cfs) Tatum Basin Inflow, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 870 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 25.40 Years | 9,277 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 1,383.266 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 2023 Page 871 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 2023 Page 872 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/4 12/12 12/28 Peak Gage Height (feet) 1.02 0.47 0.54 0.74 Peak Volume (ac-ft) 1.9 0.7 0.9 1.3 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 873 Percent Spillway Capacity 5.6 2.2 2.6 3.9 Tatum Wash Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 874 Tatum Wash Basin, volume data Volume, in acre feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 1 5 6 7 8 9 10 11 12 1 13 1 14 15 1 16 17 18 19 20 21 22 23 24 25 26 27 28 1 29 1 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 2 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 2023 MEAN 0 MAX 2 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 875 Tatum Wash Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 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 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.3 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 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.3 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 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.3 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 1.0 0.1 0.7 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 2023 MEAN 0.06 MAX 1.02 MIN 0.05 FCDMC Annual Surface Water Report, Water Year 2023 Page 876 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 26.84 Years | 9,805 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 2023 Page 877 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 2023 Page 878 2015 2020 2025 WY2023 Events Date of Peak 10/15 12/28 1/1 3/1 8/31 Peak Gage Height (feet) 0.68 1.18 1.18 1.46 1.08 Peak Volume (ac-ft) 0.2 0.5 0.5 0.7 0.4 Hydrograph of peak 2023 impoundment event, 03/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 879 Percent Spillway Capacity 1.1 2.4 2.4 3.4 1.9 Tenth Street Wash Basin #1, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 2 1 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 1 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 1 1 0 2 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 7 7 0 9 0 0 0 0 6 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 2 2 0 4 0 0 0 0 1 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 5 MEAN 0 MAX 9 MIN 0 AC_FT 9 FCDMC Annual Surface Water Report, Water Year 2023 Page 880 Tenth Street Wash Basin #1, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 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 1 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 881 Tenth Street Wash Basin #1, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.5 0.3 0.5 0.3 0.3 0.3 0.3 0.3 0.4 2 0.3 0.3 0.3 0.3 0.3 0.4 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 0.4 0.3 0.3 0.3 0.3 0.4 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 0.5 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 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 0.4 -------------------------------------------------------------------------------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 0.7 0.3 1.2 1.2 0.3 1.5 0.3 0.3 0.3 0.3 1.1 0.8 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 2023 MEAN 0.33 MAX 1.46 MIN 0.33 FCDMC Annual Surface Water Report, Water Year 2023 Page 882 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 24.04 Years | 8,782 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 2023 Page 883 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 2023 Page 884 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 6.06 587 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 885 Tiger Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 39 --------16 ----------17 ----------18 ----------19 ----------20 ----------21 --------22 --------23 --------24 --------25 --------26 ----------27 ----------28 ----------29 ------------30 ------------31 -----------------------------------------------------------------------------------------------TOTAL 39 0 0 0 0 0 0 0 ------0 MEAN 1 0 0 0 0 0 0 0 ------0 MAX 587 0 0 0 0 0 0 0 ------0 MIN 0 0 0 0 0 0 0 0 ------0 AC_FT 77 0 0 0 0 0 0 0 ------0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 39 MEAN 0 MAX 587 MIN 0 AC_FT 77 *The gage was down from May 11th to September 7th due to Vandalism. No runoff event occurred during that time. FCDMC Annual Surface Water Report, Water Year 2023 Page 886 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 7.81 Years | 2,853 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 1,346.359 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 2023 Page 887 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 2023 Page 888 2025 WY2023 Events Date of Peak 10/15 3/22 Peak Gage Height 3.27 1.07 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 889 Peak Discharge (cfs) 478 29 Twin Buttes Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 32 16 5 17 18 19 20 21 22 4 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 37 0 0 0 0 4 0 0 0 0 0 0 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 MAX 478 0 0 0 0 29 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 73 0 0 0 0 8 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 41 MEAN 0 MAX 478 MIN 0 AC_FT 81 FCDMC Annual Surface Water Report, Water Year 2023 Page 890 University Drive at 62nd Street Basin, ID #34607 Site Data LOCATION Located on the northeast corner of University Drive and 62nd Street DRAINAGE AREA Undetermined 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 6.77 Years | 2,474 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 2023 Page 891 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 2023 Page 892 2025 WY2023 Events Date of Peak 10/15 11/11 1/1 1/16 2/14 2/22 3/2 3/15 5/10 8/17 9/1 Peak Gage Height (feet) 3.37 3.57 2.82 0.97 2.47 1.10 2.57 3.56 1.99 1.15 1.31 Peak Volume (ac-ft) 0.1 0.2 0.1 0.0 0.0 0.0 0.1 0.2 0.0 0.0 0.0 Hydrograph of peak 2023 impoundment event, 11/11/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 893 Percent Spillway Capacity 0.6 0.7 0.3 0.0 0.2 0.0 0.3 0.7 0.1 0.0 0.0 University Drive at 62nd Street Basin, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 1 5 6 7 8 9 10 11 1 12 13 14 15 1 16 2 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 1 1 1 1 1 3 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 4 4 3 4 3 4 0 2 0 0 1 2 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 2 3 3 2 2 5 0 1 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 9 MEAN 0 MAX 4 MIN 0 AC_FT 18 FCDMC Annual Surface Water Report, Water Year 2023 Page 894 University Drive at 62nd Street Basin, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 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 2023 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 895 University Drive at 62nd Street Basin, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 1.0 0.2 0.5 0.2 0.2 0.2 0.2 0.2 0.3 2 0.2 0.2 0.2 0.3 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.9 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 0.5 0.2 0.2 0.2 0.2 11 0.2 1.3 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 0.4 14 0.2 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 1.0 0.2 0.2 0.2 0.4 0.5 0.2 0.2 0.2 0.2 0.2 0.2 16 0.3 0.2 0.2 0.4 0.2 1.4 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 0.3 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 0.2 0.2 0.4 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 0.4 0.2 0.2 0.2 0.2 0.3 0.2 0.2 27 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.3 0.2 0.2 28 0.2 0.2 0.3 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 0.2 --0.2 --0.2 --0.2 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.3 0.2 0.3 0.3 0.3 MAX 3.4 3.6 2.6 2.8 2.5 3.6 0.2 2.0 0.2 0.7 1.1 1.2 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 2023 MEAN 0.27 MAX 3.57 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2023 Page 896 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 22.01 Years | 8,040 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 1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 412 cfs | 2.40 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2023 Page 897 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 2023 Page 898 2020 2025 WY2023 Events Date of Peak 10/5 10/15 Peak Gage Height 1.34 1.62 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 899 Peak Discharge (cfs) 264 419 Upper Trilby Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 9 6 7 8 9 10 11 12 13 14 15 31 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 40 0 0 0 0 0 0 0 0 0 0 0 MEAN 1 0 0 0 0 0 0 0 0 0 0 0 MAX 419 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 79 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 40 MEAN 0 MAX 419 MIN 0 AC_FT 79 FCDMC Annual Surface Water Report, Water Year 2023 Page 900 UPRR Underpass at First Avenue, ID #3107 Site Data LOCATION Near First Avenue and Jackson Street DRAINAGE AREA None STREAM TYPE Roadway Underpass JURISDICTION Phoenix, Arizona WATERSHED Lower Arizona Canal Diversion Channel SECTION/TOWNSHIP/RANGE S08 T1N R3E LATITUDE N 33° 26' 39.4" | +33.44429 LONGITUDE W 112° 04' 29.0" | -112.07472 STREAMGAGE INSTALLATION DATE 05/30/2017 – WY2017 AVAILABLE PERIOD OF RECORD (POR) 05/30/2017 – 07/01/2023 LENGTH OF AVAILABLE POR DATA 6.09 Years | 2,223 Days GAPS IN RECORD 03/15/2023 – 05/18/2023 STAGE GAGE ELEVATION -9.83 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height MINIMUM ROADWAY ELEVATION 0.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2023 Page 901 Location Map UPRR Underpass at 1st Ave - water year peaks Stage (feet) 10 5 0 -5 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 902 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 903 Percent Spillway Capacity UPRR Underpass at First Avenue, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -7.5 --- -9.8 -6.3 -8.4 -9.8 -8.7 -8.7 -8.6 ------2 -7.5 --- -9.8 -6.1 -8.5 -9.6 -8.7 -8.6 -8.6 ------3 -7.5 --- -9.8 -6.2 -8.5 -9.6 -8.7 -8.6 -8.6 ------4 -7.5 --- -8.3 -6.3 -8.6 -9.6 -8.7 -8.6 -8.6 ------5 -7.5 --- -8.0 -6.4 -8.6 -9.6 -8.7 -8.6 -8.6 ------6 -6.4 --- -8.0 -6.6 -8.6 -9.6 -8.7 -8.6 -8.6 ------7 ----- -8.0 -6.8 -8.7 -9.6 -8.7 -8.6 -8.6 ------8 ----- -8.0 -6.9 -8.7 -9.6 -8.7 -8.6 -8.6 ------9 ----- -8.0 -7.0 -8.7 -9.6 -8.7 -8.6 -8.6 ------10 ----- -8.0 -7.1 -8.8 -9.6 -8.7 -8.6 -8.6 ------11 ----- -8.0 -7.2 -8.8 -9.6 -8.7 -8.6 -8.6 ------12 ----- -7.9 -7.3 -8.8 --- -8.7 -8.6 -8.6 ------13 ----- -7.9 -7.4 -8.9 --- -8.7 -8.6 -8.6 ------14 --- -9.8 -7.9 -7.5 -8.9 --- -8.7 -8.6 -8.6 ------15 --- -9.8 -7.9 -7.5 -8.9 --- -8.7 -8.6 -8.6 ------16 --- -9.8 -7.9 -7.6 -8.9 --- -8.7 -8.6 -8.6 ------17 ----- -7.9 -7.6 -9.0 --- -8.7 -8.6 -8.6 ------18 --- -9.8 -7.9 -7.7 -9.0 --- -8.7 -8.6 -8.6 ------19 ----- -7.9 -7.8 -9.0 --- -8.7 -8.6 -8.6 ------20 ----- -7.9 -7.8 -9.0 --- -8.7 -8.6 -8.6 ------21 ----- -7.9 -7.9 -9.0 --- -8.7 -8.6 -8.6 ------22 ----- -7.9 -8.0 -9.0 --- -8.7 -8.6 -8.6 ------23 ----- -7.9 -8.0 -9.1 --- -8.7 -8.6 --------24 ----- -7.9 -8.1 -9.1 --- -8.7 -8.6 --------25 ----- -7.9 -8.1 -9.1 --- -8.7 -8.6 --------26 ----- -7.9 -8.2 -9.1 --- -8.7 -8.6 --------27 ----- -7.9 -8.2 -9.1 --- -8.7 -8.6 --------28 --- -9.8 -6.7 -8.2 -9.6 -8.7 -8.7 -8.6 --------29 --- -9.8 -6.2 -8.3 --- -8.7 -8.7 -8.6 --------30 --- -9.8 -6.3 -8.3 --- -8.7 -8.7 -8.6 --------31 ----- -6.4 -8.4 --- -8.7 --- -8.6 -------------------------------------------------------------------------------------MEAN -6.7 -9.8 -7.9 -7.4 -8.9 -9.5 -8.7 -8.6 -8.6 ------MAX -6.1 -9.8 -6.0 -6.0 -8.4 -8.7 -8.7 -8.6 -8.6 ------MIN -7.5 -9.8 -9.8 -8.4 -9.8 -9.8 -8.7 -8.7 -8.6 -----------------------------------------------------------------------------------WTR YR 2023 MEAN -8.35 MAX -5.97 MIN -9.83 *The gage was down from January 7th to February 13th as well as March 12 to the 27th then removed after June 23rd. No runoff event occurred during that time. FCDMC Annual Surface Water Report, Water Year 2023 Page 904 UPRR Underpass at Central Avenue, ID #3207 Site Data LOCATION Near Central Avenue and Jackson Street DRAINAGE AREA None STREAM TYPE Roadway Underpass JURISDICTION Phoenix, Arizona WATERSHED Lower Arizona Canal Diversion Channel SECTION/TOWNSHIP/RANGE S08 T1N R3E LATITUDE N 33° 26' 38.9" | +33.44413 LONGITUDE W 112° 04' 25.5" | -112.07376 STREAMGAGE INSTALLATION DATE 05/30/2017 – WY2017 AVAILABLE PERIOD OF RECORD (POR) 05/30/2017 – 07/01/2023 LENGTH OF AVAILABLE POR DATA 6.09 Years | 2,223 Days GAPS IN RECORD None STAGE GAGE ELEVATION -5.00 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height MINIMUM ROADWAY ELEVATION 0.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2023 Page 905 Location Map Stage (feet) UPRR Underpass at Central Ave - water year peaks 15 13 11 9 7 5 3 1 -1 -3 -5 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 906 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 11/9 0.70 0.0 0.0 Hydrograph of peak WY 2023 impoundment event, 11/09/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 907 UPRR Underpass at Central Avenue, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -4.4 -5.0 -5.0 -2.8 -4.0 -3.4 ------------2 -4.5 -5.0 -5.0 -2.1 -4.0 -4.0 ------------3 -4.5 -5.0 -4.2 -3.2 -4.0 -4.0 ------------4 -4.5 -5.0 -3.5 -4.1 -4.1 -4.0 ------------5 -4.5 -5.0 -3.6 -4.1 -4.1 -4.0 ------------6 -3.8 -5.0 -3.8 -4.1 -4.1 -4.1 ------------7 -3.8 -5.0 -3.9 -4.2 -4.1 -4.1 ------------8 -3.9 -5.0 -4.0 -4.2 -4.1 -4.1 ------------9 -3.9 -4.7 -4.1 -4.2 -4.1 -4.8 ------------10 -4.0 -4.4 -4.2 -4.2 -4.1 -5.0 ------------11 -4.0 -4.5 -4.3 -4.3 -4.1 -5.0 ------------12 -4.1 -4.5 -4.1 -4.3 -4.1 -5.0 ------------13 -4.1 -4.6 -4.0 -4.3 -4.1 -5.0 ------------14 -4.5 -4.6 -4.2 -4.4 -4.0 -5.0 ------------15 -4.1 -4.6 -4.2 -4.0 -3.4 --------------16 -2.9 -4.7 -4.3 -3.2 -3.5 --------------17 -3.0 -4.7 -4.4 -2.6 -3.6 --------------18 -3.2 -4.7 -4.5 -2.9 -3.7 --------------19 -3.3 -4.7 -4.8 -3.2 -3.8 --------------20 -3.5 -4.7 -5.0 -3.4 -3.9 --------------21 -3.6 -4.7 -5.0 -3.5 -3.9 --------------22 -3.7 -4.7 -5.0 -3.7 -3.6 --------------23 -3.8 -4.8 -5.0 -3.8 -3.5 --------------24 -3.9 -4.8 -5.0 -3.9 -3.4 --------------25 -4.0 -4.8 -5.0 -3.9 -3.5 --------------26 -4.0 -4.8 -5.0 --- -3.2 --------------27 -4.1 -4.8 -5.0 --- -3.3 --------------28 -4.2 -4.8 -3.0 --- -3.3 --------------29 -4.3 -4.8 -2.6 ------------------30 -4.7 -4.8 -2.8 ------------------31 -5.0 --- -3.0 -3.9 ---------------------------------------------------------------------------------------------MEAN -4.0 -4.8 -4.2 -3.7 -3.8 -4.7 ------------MAX -2.8 -4.3 -1.4 -1.9 -3.1 -2.5 ------------MIN -5.0 -5.0 -5.0 -4.4 -4.1 -5.0 -----------------------------------------------------------------------------------------WTR YR 2023 MEAN -4.61 MAX -1.45 MIN -5.00 *station removed March 15th FCDMC Annual Surface Water Report, Water Year 2023 Page 908 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 7.39 Years | 2,699 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 0.00 feet Gage Height POINT OF ZERO FLOW 0.25 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,258 cfs | 4.06 feet GH | 08/09/2016 FCDMC Annual Surface Water Report, Water Year 2023 Page 909 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 2023 Page 910 2025 WY2023 Events Date of Peak 10/3 10/15 1/1 Peak Gage Height 1.20 1.10 1.70 Hydrograph of peak WY 2023 flow event, 01/01/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 911 Peak Discharge (cfs) 88 66 224 US60 at Gold Canyon, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6 2 3 1 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 2 0 0 6 0 0 0 0 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 193 0 0 224 0 0 0 0 0 1 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 3 0 0 12 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 8 MEAN 0 MAX 224 MIN 0 AC_FT 15 FCDMC Annual Surface Water Report, Water Year 2023 Page 912 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 33.57 Years | 12,261 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 2023 Page 913 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 2023 Page 914 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 915 Peak Discharge (cfs) Vekol Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 916 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 35.89 Years | 13,110 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 2023 Page 917 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 2023 Page 918 2010 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 1/2 2.02 335.5 7.4 Hydrograph of peak 2023 impoundment event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 919 Vineyard FRS, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 4 2 22 3 8 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 34 0 0 0 0 0 0 0 0 MEAN 0 0 0 1 0 0 0 0 0 0 0 0 MAX 0 0 0 25 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 67 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 34 MEAN 0 MAX 25 MIN 0 AC_FT 67 FCDMC Annual Surface Water Report, Water Year 2023 Page 920 Vineyard FRS, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 55 2 294 3 126 4 13 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 16 0 0 0 0 0 0 0 0 MAX 0 0 0 335 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 1 MAX 335 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 921 Vineyard FRS, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 1.8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.9 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 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 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 2.0 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 2023 MEAN 0.21 MAX 2.02 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2023 Page 922 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 17.93 Years | 6,549 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 159 cfs | 3.58 feet | 08/03/2014 FCDMC Annual Surface Water Report, Water Year 2023 Page 923 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 2023 Page 924 2020 2025 WY2023 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 3/15 2.49 42 Hydrograph of peak WY 2023 flow event, 03/15/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 925 Vulture Mine Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 3 16 5 17 18 19 20 --21 --22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 8 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 42 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 16 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 8 MEAN 0 MAX 42 MIN 0 AC_FT 16 FCDMC Annual Surface Water Report, Water Year 2023 Page 926 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 6.62 Years | 2,418 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 2023 Page 927 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 2023 Page 928 2025 WY2023 Events Date of Peak Peak Gage Height None Hydrograph of peak WY 2023 flow event No runoff recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 929 Peak Discharge (cfs) Wagner Wash at Sun Valley Parkway, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 930 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 24.54 Years | 8,963 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.00 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 2023 Page 931 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 2023 Page 932 2015 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 7.25 1700 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 933 Waterman Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 15 207 16 385 17 3 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 596 0 0 0 0 0 0 0 0 0 0 0 MEAN 19 0 0 0 0 0 0 0 0 0 0 0 MAX 1700 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 1182 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 596 MEAN 2 MAX 1700 MIN 0 AC_FT 1182 FCDMC Annual Surface Water Report, Water Year 2023 Page 934 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 15.35 Years | 5,605 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 2023 Page 935 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 2023 Page 936 2020 2025 WY2023 Events Date of Peak 12/4 1/1 2/10 2/12 2/26 3/15 3/2 9/13 Peak Gage Height 0.63 0.53 0.51 0.61 0.56 0.63 0.73 1.94 Hydrograph of peak WY 2023 flow event, 09/13/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 937 Peak Discharge (cfs) 49 37 35 46 41 49 62 284 Weekes Wash at Baseline Road, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 13 5 2 4 3 10 3 10 4 15 5 3 6 3 7 8 9 10 7 11 12 5 13 12 14 4 15 3 3 16 6 3 17 18 19 20 21 22 23 24 25 26 8 1 27 28 29 --30 ----31 ---------------------------------------------------------------------------------------TOTAL 19 0 29 17 20 21 0 0 0 1 0 12 MEAN 1 0 1 1 1 1 0 0 0 0 0 0 MAX 21 0 49 37 46 62 0 0 0 17 0 284 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 38 0 58 33 41 42 0 0 0 1 0 24 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 119 MEAN 0 MAX 284 MIN 0 AC_FT 236 FCDMC Annual Surface Water Report, Water Year 2023 Page 938 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 35.75 Years | 13,057 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 2023 Page 939 Watershed Map FCDMC Annual Surface Water Report, Water Year 2023 Page 940 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2023 impoundment event, No impoundment recorded during Water Year 2023. FCDMC Annual Surface Water Report, Water Year 2023 Page 941 Percent Spillway Capacity White Tanks FRS #3, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 942 White Tanks FRS #3, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 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 2023 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 943 White Tanks FRS #3, stage data Depth, in feet, Water Year October 2022 to September 2023 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 0.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.4 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 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 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 1.3 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 2023 MEAN 0.15 MAX 1.31 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2023 Page 944 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 36.00 Years | 13,149 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 2023 Page 945 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 2023 Page 946 2010 2015 2020 2025 WY2023 Events Date of Peak 10/16 1/1 1/17 2/15 3/1 3/22 9/13 Peak Gage Height (feet) 4.95 0.29 0.24 0.12 0.44 1.04 0.45 Peak Volume (ac-ft) 39.7 0.0 0.0 0.0 0.0 1.9 0.0 Hydrograph of peak WY 2023 flow event, 10/16/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 947 Percent Spillway Capacity 2.7 0.0 0.0 0.0 0.0 0.1 0.0 White Tanks FRS #4, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 2023 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 948 White Tanks FRS #4, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 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 7 16 36 17 25 18 17 19 11 20 7 21 4 22 3 1 23 1 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 4 0 0 0 0 0 0 0 0 0 0 0 MAX 40 0 0 0 0 2 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 0 MAX 40 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 949 White Tanks FRS #4, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -0.2 -0.2 -0.6 -0.3 -0.4 -0.2 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 2 -0.3 -0.2 -0.6 0.2 -0.4 0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 3 -0.4 -0.3 -0.6 0.1 -0.5 0.2 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 4 -0.4 -0.3 --- -0.0 -0.5 0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 5 -0.5 -0.3 -0.6 -0.1 -0.5 0.0 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 6 -0.5 -0.3 -0.6 -0.1 -0.5 -0.0 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 7 -0.5 -0.4 -0.6 -0.2 -0.6 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 8 -0.5 -0.4 -0.6 -0.2 -0.6 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 9 -0.5 -0.4 -0.6 -0.2 -0.6 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 10 -0.6 -0.4 -0.6 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 11 -0.6 -0.4 -0.6 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 12 -0.6 -0.4 -0.6 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 13 -0.6 -0.5 -0.6 -0.4 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 0.4 14 -0.6 -0.5 -0.6 -0.4 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.5 15 1.1 -0.5 -0.6 -0.4 0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 16 4.7 -0.5 -0.6 -0.3 0.0 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 17 3.9 -0.5 -0.6 0.2 -0.0 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 18 3.1 -0.5 -0.6 0.1 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 19 2.5 -0.6 -0.6 0.0 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 20 2.0 -0.6 -0.6 -0.0 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 21 1.6 -0.6 -0.6 -0.1 -0.1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 22 1.2 -0.6 -0.6 -0.1 -0.2 0.5 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 23 0.9 -0.6 -0.6 -0.2 -0.2 0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 24 0.7 -0.6 -0.6 -0.2 -0.2 0.2 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 25 0.5 -0.6 -0.6 -0.2 -0.3 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 26 0.3 -0.6 -0.6 -0.3 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 27 0.1 -0.6 -0.6 -0.3 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 28 0.0 -0.6 -0.6 -0.3 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 29 -0.0 -0.6 -0.6 -0.4 --- -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 30 -0.1 -0.6 -0.6 -0.4 --- -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 31 -0.1 --- -0.6 -0.4 --- -0.6 --- -0.6 --- -0.6 -0.6 -------------------------------------------------------------------------------MEAN 0.5 -0.5 -0.6 -0.2 -0.4 -0.3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 MAX 5.0 -0.2 -0.6 0.3 0.1 1.0 -0.6 -0.6 -0.6 -0.6 -0.6 0.7 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 2023 MEAN -0.42 MAX 4.95 MIN -0.60 FCDMC Annual Surface Water Report, Water Year 2023 Page 950 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 6.81 Years | 2,489 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 2023 Page 951 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 2023 Page 952 2025 WY2023 Events Date of Peak 10/15 9/12 Peak Gage Height (feet) 0.95 0.68 Hydrograph of peak WY 2023 flow event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 953 Peak Discharge (cfs) 45 28 White Tank Outfall Channel, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 5 13 24 14 12 15 7 16 7 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 14 0 0 0 0 0 0 0 0 0 0 41 MEAN 0 0 0 0 0 0 0 0 0 0 0 1 MAX 45 0 0 0 0 0 0 0 0 0 0 28 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 29 0 0 0 0 0 0 0 0 0 0 82 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 56 MEAN 0 MAX 45 MIN 0 AC_FT 110 FCDMC Annual Surface Water Report, Water Year 2023 Page 954 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 23.16 Years | 8,460 Days GAPS IN RECORD None 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 2023 Page 955 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 2023 Page 956 2020 2025 WY2023 Events Date of Peak 12/4 1/2 1/17 3/2 3/16 3/22 9/1 Peak Gage Height (feet) 12.05 17.14 16.81 12.77 12.22 12.79 17.76 Peak Volume (ac-ft) 17.8 118.7 109.4 22.0 18.7 22.1 21.9 Hydrograph of peak 2023 impoundment event, 01/02/2023 FCDMC Annual Surface Water Report, Water Year 2023 Page 957 Percent Spillway Capacity 0.0 1.3 1.2 0.0 0.0 0.0 0.0 Whitlow Ranch Dam, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 86 --19 2 371 97 --136 3 58 285 --4 36 210 --5 ----6 ----7 ----8 ------9 ----10 ----11 ----12 ----13 --14 --15 35 --16 261 82 --17 373 --18 280 --19 --20 --21 --22 101 --23 57 --24 --25 --26 ----27 ----28 ----29 ------30 ------31 ---------------------------------------------------------------------------------------TOTAL 0 0 36 1464 0 832 0 0 0 0 0 154 MEAN 0 0 1 47 0 27 0 0 0 0 0 5 MAX 0 0 278 393 0 303 0 0 0 0 0 302 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 70 2903 0 1651 0 0 0 0 0 306 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 2486 MEAN 7 MAX 393 MIN 0 AC_FT 4931 FCDMC Annual Surface Water Report, Water Year 2023 Page 958 Whitlow Ranch Dam, volume data Volume, in acre-feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 18 --1 2 86 6 --8 3 3 19 --4 2 14 --5 ----6 ----7 ----8 ------9 ----10 ----11 ----12 ----13 --14 --15 2 --16 45 5 --17 84 --18 18 --19 --20 --21 --22 7 --23 4 --24 --25 --26 ----27 ----28 ----29 ------30 ------31 ---------------------------------------------------------------------------------------MEAN 0 0 0 8 0 2 0 0 0 0 0 0 MAX 0 0 18 119 0 22 0 0 0 0 0 22 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 MEAN 1 MAX 119 MIN 0 FCDMC Annual Surface Water Report, Water Year 2023 Page 959 Whitlow Ranch Dam, stage data Depth, in feet, Water Year October 2022 to September 2023 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 11.7 11.7 11.7 12.6 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 2 11.7 11.7 11.7 15.9 11.7 11.9 11.7 --- 11.7 11.7 11.7 11.8 3 11.7 11.7 11.7 11.7 11.7 12.3 11.7 --- 11.7 11.7 11.7 11.7 4 11.7 11.7 11.7 11.7 11.7 12.0 11.7 --- 11.7 11.7 11.7 11.7 5 11.7 11.7 11.7 --- 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 6 11.7 11.7 11.7 --- 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 7 11.7 11.7 11.7 --- 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 8 11.7 11.7 11.7 --- 11.7 11.7 11.7 --- 11.7 11.7 11.7 --9 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 --10 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 --11 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 --12 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 --13 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 14 11.7 11.7 11.7 11.7 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 15 11.7 11.7 11.7 11.8 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 16 11.7 11.7 11.7 14.2 11.7 11.8 11.7 --- 11.7 11.7 11.7 11.7 17 11.7 11.7 11.7 15.9 11.7 11.7 11.7 --- 11.7 11.7 11.7 11.7 18 11.7 11.7 11.7 12.1 11.7 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 11.7 --- 11.7 11.7 11.7 11.7 20 11.7 11.7 11.7 11.7 11.7 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 --- 11.7 11.7 11.7 11.7 22 11.7 11.7 11.7 11.7 11.7 11.9 11.7 --- 11.7 11.7 11.7 11.7 23 11.7 11.7 11.7 11.7 11.7 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 11.7 --- 11.7 11.7 11.7 11.7 25 11.7 11.7 11.7 11.7 11.7 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 ----- 11.7 11.7 11.7 11.7 27 11.7 11.7 11.7 11.7 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 ----- 11.7 11.7 11.7 11.7 29 11.7 11.7 11.7 11.7 --- 11.7 ----- 11.7 11.7 11.7 11.7 30 11.7 11.7 11.7 11.7 --- 11.7 ----- 11.7 11.7 11.7 11.7 31 11.7 --- 11.7 11.7 --- 11.7 --- 11.7 --- 11.7 11.7 -------------------------------------------------------------------------------MEAN 11.7 11.7 11.7 12.1 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 MAX 11.7 11.7 12.1 17.1 11.7 12.8 11.7 11.7 11.7 11.7 11.7 12.8 MIN 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 -----------------------------------------------------------------------------WTR YR 2023 MEAN 11.74 MAX 17.14 MIN 11.70 FCDMC Annual Surface Water Report, Water Year 2023 Page 960 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 23.22 Years | 8,482 Days GAPS IN RECORD None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.51 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,120.00 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 510 cfs | 3.30 feet | 07/29/2003 FCDMC Annual Surface Water Report, Water Year 2023 Page 961 Watershed Map Winters Wash - water year peaks 1600 1400 Discharge (cfs) 1200 1000 800 600 400 200 0 2000 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2023 Page 962 2020 2025 WY2023 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 10/15 4.27 1400 Hydrograph of peak 2023 impoundment event, 10/15/2022 FCDMC Annual Surface Water Report, Water Year 2023 Page 963 Winters Wash, runoff data Discharge, in cfs-days, Water Year October 2022 to September 2023 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 15 235 16 28 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 263 0 0 0 0 0 0 0 0 0 0 0 MEAN 8 0 0 0 0 0 0 0 0 0 0 0 MAX 1400 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 521 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2023 TOTAL 263 MEAN 1 MAX 1400 MIN 0 AC_FT 521 FCDMC Annual Surface Water Report, Water Year 2023 Page 964 End of Report FCDMC Annual Surface Water Report, Water Year 2023 Page 965