HYDROLOGIC DATA REPORT VOLUME II - SURFACE WATER AND STREAMFLOW DATA WATER YEAR 2018 Vekol Wash at I-8, near Stanfield, Arizona (photo date: July 10, 2018) 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 25th annual water data report published by the District. Annual reports are available for Water Years 1994 – 2018. 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 in context with historic records at the gage. Flood flow frequency data are computed for stations with sufficient record (> 11 years of non-zero flow.) Disclaimers: 1. Flood flow frequency graphics, whether computed in-house or cited from FEMA floodplain studies, are provided for informational purposes only and should not be considered for regulatory purposes. 2. The information contained herein is as accurate and complete as possible within the limitations of real-time data collection technology currently available. Wherever possible, notes have been included to identify questionable data. Reliance upon the accuracy, reliability, and authority of this information is solely the responsibility of the user. 3. Mention of any products, companies, or specific brand names in this report does not constitute endorsement of those companies or products. Revisions to any of these data for any reason will be published in the following years’ reports in an appendix to the report. Copies of this report may be purchased from: Flood Control District of Maricopa County 2801 W. Durango Street Phoenix, Arizona 85009 (602) 506-8701 Or downloaded from: https://www.maricopa.gov/759/Publications ii TABLE OF CONTENTS Preface …………………………………………………………………………………….. ii Introduction ……………………………………………..……………………………… iv Data Collection ……………………………………………………………………….. v Definition of Terms …………………………………………………………………. ix – xii Station Location Map ………………………………………………………………. xiii New Installations in Water Year 2018 …………………………………….. xiv Station Table ………………………………………………………………………….. xv – xix Summary of Significant Streamflow ……………………………………….. xx Station Data Pages …………………………………………………………………. 1 - 949 iii INTRODUCTION The Flood Control District of Maricopa County (FCDMC or District) collects a large amount of data pertaining to surface water runoff in and around Maricopa County. Stations report data to the main database at least 4 times daily, even if the data is zero (no flow.) During runoff events, data are transmitted to the database more frequently, as water levels rise and fall. Recently, the District has been changing the stations’ data transmit protocol from ALERT1 to ALERT2. As of Water-year 2018, all streamflow stations have been upgraded to the new ALERT2 protocol. Ultimately, this change will result in greater data reliability and a decrease in data lost during busy rainfall and runoff events. 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 201 216 137 69 4 3 6 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 25th 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 field surveyed 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 in an attempt 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 coorperative 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 the cooperative agreement, the USGS maintains a number of peak-only stations (noncontinuous) that only report an annual maximum. Tables 2 and 3 on the following pages show the USGS gages, along with any associated District gage as well. vi Table 2: USGS Continuous Stations, WY 2018 USGS Station Name USGS Station ID Indian Bend Wash at Curry Road nr Tempe 09512162 Location Lat/Long DD MM SS 33 26 25 / 111 54 52 FCD Gage No Salt River at Priest Drive nr Tempe 09512165 33 26 22 / 111 57 37 Yes, ID #4523 Cave Creek below Cottonwood Creek 09512280 33 53 14 / 111 57 12 Yes, ID #4923 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 #5568 Gila River at Estrella Parkway nr Goodyear 09514100 33 23 15 / 112 23 30 Yes, ID #6853 Hassayampa River near Morristown 09516500 33 53 06 / 112 39 41 Yes, ID #5523 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 #5103 Table 3: USGS Annual Peak Stations, WY2018 USGS Station Name Vekol Wash at I-8 09488650 Location Lat/Long DD MM SS 32 50 30 / 112 15 04 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 #4693 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 #7063 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 #5163 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 #6963 Sauceda Wash near Gila Bend 09519760 32 52 14 / 112 45 30 Yes, ID #6923 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 #5108 Delaney Wash near Tonopah viii USGS Station ID FCD Gage Yes, ID #6983 DEFINITION OF TERMS Terms related to streamflow and other hydrologic data as used in this report are defined below: Table 4: Definitions Term Acre-foot (ac-ft or af) Definition The quantity of water required to cover 1 acre to a depth of 1 foot and is equivalent to 43,560 cubic feet or about 326,000 gallons or 1,233 cubic meters. Basin A typically man-made structure that is partially or entirely below the normal grade of land where it lies. It is for detaining water for release to another structure such as a storm drain. CAP Central Arizona Project, as in the CAP canal. Cubic Feet per Second (cfs) The rate of discharge representing a volumne 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. The average discharge in cfs for a 24 hour period from midnight to midnight the following day. Daily Mean Discharge Data Gaps in Period of Record Discharge (Q) Data gaps referred to here are typically due to construction activites that cause the gage and station to be removed and out of service for a period of time. There are times when the station is down due to internal or external failure (battery, transmitter, repeater), but the station remains ‘in the ground.’ These gaps are not accounted for in this report. The volume of water (or more broadly, total fluid plus suspended sediment), that passes a given point within a given period of time. ix Drainage Area (DA) The area, measured in a horizontal plane, enclosed by a topographic divide from which direct surface runoff from precipitation normally drains by gravity into the stream above the specified point. Flood Flow Frequency Refers to the magnitude (in terms of peak discharge) and probability of floods at a given gaging station. The flood flow frequency is usually given as a peak discharge associated with a given recurrence interval at a particular gaging station. FRS Flood Retarding Structure, refers to dams originally constructed by the Soil Conservation Service (SCS), now known as the Natural Resources Conservation Service (NRCS). Gage (or gauge) Refers to a measuring device or sensor, such as a pressure transducer, or bubbler orifice, or a passive device, such as a staff gage, or crest-stage gage. Gage Datum The elevation of the zero point of the reference gage from which gage height is determined. This elevation is established by a system of levels from known bench marks 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 some 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 particular site on a river, stream, canal, lake, or reservoir where systematic observations of hydrologic data are obtained. 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 flood event. Period of Record (POR) is the time period for which data exists for a given stream gaging station. Pressure Transducer is 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. is the reciprocal of the probability of a flood occurring in any given year. Thus, the flood having a 1% (1/100, or 1 in 100) chance of occurring in any given year has a recurrence interval of 100 years and is referred to as the 100-year flood. Similarly, the flood having a 50% (1/2 or 1 in 2) chance of occurring in any given year has a recurrence interval of 2 years and is referred to as the 2year flood. is 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. Recurrence Interval Staff Gage xi Stage-Discharge Relationship is 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-Storage Relationship is the relation between gage height (stage) and the volume of water stored behind or within a flood control impoundment structure. Streamflow is 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. dealing with surface-water data is 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, 2015 and ending September 30, 2016, is called the "2016 Water Year." Water Year xii FCDMC STREAMFLOW AND IMPOUNDMENT GAGE LOCATIONS – WY 2018 Streamflow Station Impoundment / Storage Station xiii New Installations in Water Year 2018 There was 1 new streamgage station established during Water Year 2018. Table 5: New Installations Station Bullard Wash at Van Buren Street ID Date Installed Requesting Agency 89207 12/13/2017 Goodyear Station Changes in Water Year 2018  The Bullard Wash near Gila River stream gage (#6863) was permanently removed from service on December 13, 2017. xiv Gage Stations included in this report (click on page number to go to that page) NAME ID Page Arizona Canal Diversion Channel (ACDC) at 36h Street 4808 1 ACDC at 14th Street 4813 5 ACDC at 43rd Avenue 4823 9 th ACDC at 67 Avenue 5523 13 Adobe Dam Pool 5538 18 Adobe Dam Outlet 5539 23 Agua Fria River at Grand Avenue 5503 27 Agua Fria River at Buckeye Road (MC-85) 5403 31 Amigos Wash 6648 35 Antelope Creek 7168 39 Apache Junction FRS 6673 43 Aspen Dam 5988 49 Baseline Road at 43rd Avenue Basin 66407 55 Bender Wash 6963 61 Berneil Wash 4688 65 Box Wash 5273 69 Buckeye FRS #1 5203 73 Buckeye FRS #2 5208 79 Buckeye FRS #3 6813 85 Bullard Wash at Indian School Road 6868 91 Bullard Wash at Van Buren Street 89207 95 Bullard Wash (near Gila River) 6863 99 th Camelback Road at 24 Avenue Basin 6807 103 CAP Reach #11 Dike #1 8407 109 CAP Reach #11 Dike #2 58607 115 CAP Reach #11 Dike #3 60107 121 CAP Reach #11 Dike #4 59807 127 Casandro Wash 7093 133 Casandro Dam 7133 137 Cave Buttes Dam Pool 4904 143 Cave Buttes Dam Outlet 4903 148 Cave Creek at Ashdale Ranger Station 4947 152 Cave Creek at Spur Cross 4923 156 Cave Creek (in town of Cave Creek) 4893 160 Cave Creek near Cave Creek 4918 164 Cave Creek at CAP 4907 168 Cave Creek at Cactus Road 4833 172 Centennial Wash near Aguila 5178 176 Centennial Wash at Wenden 5093 180 Centennial Levee 5123 184 Centennial Wash at UPRR 5103 188 Centennial Tributary at Dobbins Road 5049 192 Cline Creek 5583 196 xv NAME Colter Channel at El Mirage Road Columbus Wash Copper Wash Crossroads Park Cruff Wash Daggs Wash Delaney Wash Desert Hills Wash Dreamy Draw Dam Dysart Drain at LAFB Dysart Drain at El Mirage Road East Fork Cave Creek Basin #1 East Fork Cave Creek Basin #3A East Fork Cave Creek Basin #3B East Fork Cave Creek Basin #4 East Fork Cave Creek near 7th Avenue El Mirage Road Drain East Maricopa Floodway (EMF) at Broadway Road EMF below Powerline Floodway EMF at Queen Creek Road EMF at Arizona Avenue Estrella Fan Flying E Wash Ford Canyon Wash Fourth of July Wash Freestone Basin Galloway Wash at Galloway Road Gila River at Olberg Road Gila River at Maricopa Road Gila River at 116th Avenue Bridge (Avondale Blvd.) Gila River at Estrella Parkway Golden Eagle Park Dam Grand Avenue at 27th Avenue Basin Granite Reef Diversion Granite Reef Wash Greene Wash at SR84 Guadalupe Channel Guadalupe FRS Harquahala FRS Hartman Wash Hassayampa River at Wagoner Bridge Hassayampa River at Box Canyon Hassayampa River at US60 Hassayampa River near Morristown xvi ID 5408 5013 5033 6623 5078 5498 5108 4898 4803 5413 5423 4648 8807 4683 4658 4668 5483 6573 6758 6583 6598 6893 7083 5428 5043 6608 20607 0783 0778 6848 6853 5978 3807 4568 4728 0793 6603 6503 5128 7063 5352 5308 5228 5223 Page 200 204 208 212 217 221 225 229 233 239 243 247 253 259 265 271 275 279 283 287 291 295 299 303 307 311 316 320 324 328 332 336 342 348 352 356 360 364 370 376 380 384 388 392 NAME Hassayamap River at I-10 Hesperus Dam Indian Bend Wash (IBW) at Sweetwater Avenue IBW at Shea Boulevard IBW near Indian Bend Road IBW at McDonald Drive IBW at Indian School Road IBW near McKellips Road IBW Interceptor Channel Jackrabbit Wash Lake Margherite Laveen Basin Magma FRS Martinez Creek McDowell Mountain Road McMicken Dam at Bell Road McMicken Dam McMicken Floodway Mineral Canyon Basin New River Fire New River Dam Pool New River Dam Outlet New River at Bell Road New River at Glendale Avenue North Heights Dam Old Crosscut Canal Paradise Lane at 33rd Drive Basin Paradise Lane at 47th Avenue Basin Pecos Sediment Basin Pecol Basin Pool Pecos North Inlet Pecos East Inlet Pecos West Inlet Phoenix Dam #2A Phoenix Dam #2B Phoenix Dam #3 Phoenix Dam #4 Phoenix Dam #7 Phoenix Dam #99 Phoenix East Park Dam Phoenix West Park Dam Phoenix Zoo Dam #3 Phoenix Zoo Dam #5 Picacho Wash xvii ID 5283 5993 4643 4693 4613 4628 4618 4603 4623 5218 4678 4578 6718 7013 5923 5443 5448 5438 68807 5638 5614 5613 5598 5508 5983 4748 12407 13707 6537 6538 6532 6533 6534 4789 4778 4828 4838 4853 4843 4848 4858 4307 4407 5678 Page 396 400 406 410 414 418 422 426 430 434 438 442 448 454 458 462 466 472 476 482 486 491 495 499 504 510 514 520 526 532 538 543 546 550 556 562 568 574 580 586 592 598 604 610 NAME Pima Canyon Wash Powder House Wash Powerline Floodway Powerline FRS Price Drain at Loop 202 Prickly Pear Wash Queen Creek at CAP Queen Creek at Rittenhouse Road Rainbow Wash Rawhide Wash Reata Pass Dam Reata Pass Wash Rittenhouse FRS Roeser Road at 23rd Avenue Basin Saddleback FRS Salt River below Granite Reef Diversion Salt River at Val Vista Drive Salt River at Priest Drive Salt River at 7th Avenue Salt River at 51st Avenue Salt River at 67th Avenue Sand Tank Wash at I-8 Santa Cruz River at SR84 Sauceda Wash Scatter Wash Seven Springs Wash Signal Butte FRS Siphon Draw Wash at Signal Butte Road Skunk Creek near New River Skunk Creek at Desert Hills Drive Skunk Creek at Carefree Highway Skunk Creek at Dixileta Drive Skunk Creek at I-17 Skunk Tank Wash Sols Wash at SR71 Sols Wash Tributary at US93 Sols Wash near Matthie Sonoqui Wash near Hawes Road Sonoran Wash South Mountain Fan Spookhill FRS Spookhill FRS at McDowell Road Spookhill FRS at McKellips Road Spookhill FRS at Brown Road ID 6523 7113 6708 6683 4573 8107 6723 6707 6953 4863 4938 4588 6703 66807 5113 4583 4548 4523 4763 4753 4758 6933 0788 6923 5543 4963 6628 37607 5588 64807 65707 64907 5568 4888 5276 7028 7043 36307 65907 6563 4563 6637 6638 6693 xviii Page 614 618 622 626 632 636 640 644 648 652 656 662 666 672 678 684 688 692 696 700 704 708 712 716 720 724 728 734 738 742 746 750 754 758 762 766 770 774 778 782 786 792 798 804 NAME Stagecoach Wash Stoneridge Dam Sun Valley Parkway at Northern Avenue Wash Sunnycove FRS Sunridge Canyon Dam Sunset FRS Sycamore Creek Fire PT Tat Momolikot Dam Tatum Wash Basin Inlet Tatum Wash Basin Tenth Street Wash Basin #1 Tiger Wash Twin Buttes Wash University Drive at 62nd Street (Mesa) Basin Upper Trilby Wash UPRR Underpass at First Avenue UPRR Underpass at Central Avenue US60 at Gold Canyon Wash Vekol Wash Vineyard FRS Vulture Mine Road Wagner Wash at Sun Valley Parkway Waterman Wash at Rainbow Valley Road Weekes Wash at Baseline Road White Tanks FRS #3 White Tanks FRS #4 White Tank Outflow Channel Whitlow Ranch Dam Winters Wash xix ID 4913 5968 5303 5248 5973 5233 5873 0773 4638 4653 4818 5163 73207 34607 5488 3107 3207 36907 6983 6688 5263 44707 6833 6753 5418 6823 87407 6739 5118 Page 810 814 820 824 830 836 842 846 852 856 862 868 872 876 882 886 890 894 898 902 908 912 916 920 924 930 936 940 946 SUMMARY OF SIGNIFICANT STREAMFLOW EVENTS Rainfall and runoff in Maricopa County occur primarily in the summer and winter. However, significant rainfall has occured during the transitional season following the summer monsoon. From a water year standpoint, the year begins in October with the onset of the transition period from the summer monsoon to a more zonal westerly air flow pattern. During this transition period, both southerly tropical flow mixes with weather disturbances from the northwest and can produce severe weather and heavy rainfall. The traditional winter season generally occurs from December through early April and is typified by large-scale low pressure systems moving southward from the northwest along the west coast. Following the winter season, a dry period occurs from mid-April to mid-June. After this dry period, the summer monsoon season begins June 15 and continues through September 30. The summer monsoon season is characterized by an altering of the zonal westerly flow pattern to a more south and easterly air flow pattern. Water Year 2018 (10/1/17 – 9/30/18) began quite dry, with little rainfall / runoff. A few stations received runoff in January, but little else occurred until mid-June. The official start of the monsoon is June 15, and with the aide of tropical system in the Pacific Ocean, several gage sites received runoff on June 16. In the history of stream gaging of FCDMC (30 years) there has never been runoff on June 16. Following this brief period of rainfall, typical quiet late-June, early July weather prevailed until July 9, when a fairly active pattern set up over the northern portion of Phoenix and Maricopa County. The active pattern lasted through July 11-12. This was followed by a dry spell and a third round of storms transpired in late-July, with limited areas being affected. The wettest period of the summer monsoon season set up from about August 8-12, with a number of stations having daily runoff peaks during that period. A less active pattern occurred until August 23-24 which provided a final major event for the summer. Additionally, several staions in the southern part of the county had rain and runoff on September 19, which brought the water year runoff to a conclusion. Highlights of the runoff and impoundment events are summarized on the following three pages. xx Maximum Flows for Water Year 2018 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Amigos Wash (6648) Antelope Creek (7168) Box Wash (5273) Box Wash (5273) Cave Creek (4893) Cave Creek near Cave Creek (4918) East Fork Cave Creek near 7th Avenue (4668) East Maricopa Floodway (EMF) at Broadway Rd (6573) EMF below Powerline Floodway (6758) EMF at Queen Creek Road (6583) Galloway Wash at Galloway Road (20607) Guadalupe Channel (6603) Hassayampa River at US60 (5228) Hassayampa River at US60 (5228) Hassayampa River at US60 (5228) Indian Bend Wash (IBW) at Shea Blvd (4693) IBW near Indian Bend Road (4613) IBW at McDonald Drive (4628) IBW at Indian School Road (4618) IBW near McKellips Road (4603) IBW Interceptor Channel (4623) Jackrabbit Wash (5218) Martinez Creek (7013) Picacho Wash (5678) Salt River below Granite Reef (4583) Sand Tank Wash at I‐8 (6933) Sauceda Wash (6923) Tatum Basin Inflow (4638) Tiger Wash (5163) Tiger Wash (5163) Discharge (cfs) Stage (feet) 669 1,389 2,220 1,008 1,782 1,554 1,685 1,650 3,372 1,962 1,518 809 3,986 2,460 2,318 1,134 1,500 3,110 3,675 4,054 1,542 1,162 1,749 2,012 2,467 970 1,952 841 1,622 1,333 Continued 2.05 3.48 3.52 2.30 5.82 3.22 4.00 3.10 6.27 3.73 2.52 2.60 2.54 2.12 2.07 2.41 4.41 3.70 5.33 5.66 5.78 3.46 5.05 4.07 8.40 3.47 4.82 2.34 7.22 6.93 Next Date 08/10/2018 08/22/2018 07/30/2018 07/28/2018 08/23/2018 08/23/2018 08/23/2018 08/10/2018 08/10/2018 08/10/2018 08/23/2018 08/10/2018 08/22/2018 08/17/2018 08/25/2018 08/23/2018 08/11/2018 08/11/2018 08/11/2018 08/11/2018 08/11/2018 07/12/2018 08/22/2018 07/11/2018 08/14/2018 09/19/2018 09/19/2018 08/10/2018 07/11/2018 07/28/2018 Page Note: Many stations recorded multiple events. These are the maximum peaks for the year. xxi Water Year 2018 Maximum Flows for Water Year 2018 at Selected FCDMC Water Level Sensor Locations, continuted Red values are peaks of record Location Twin Buttes Wash (73207) Vekol Wash (6983) Wagner Wash at Sun Valley Pkwy (44707) Discharge (cfs) Stage (feet) Date 714 2,120 1,358 3.93 7.30 2.97 08/12/2018 07/09/2018 08/16/2018 Note: Many stations recorded multiple events. These are the maximum peaks for the year. xxii Water Year 2018 Maximum Impoundments for Water Year 2018 at Selected FCDMC Water Level Sensor Locations Red values are peaks of record Location Apache Junction FRS (6673) Aspen Dam (5988) Dreamy Draw Dam (4803) Golden Eagle Park Dam (5978) Hesperus Dam (5993) North Heights Dam (5983) Phoenix Dam 2A (4789) Phoenix Dam 2B (4778) Phoenix Dam 4 (4838) Powerline FRS (6683) Signal Butte FRS (6628) Spookhill FRS (4563) Stoneridge Dam (5968) Sunridge Canyon Dam (5973) Tat Momolikot Dam (773) Tenth Street Wash Basin 1 (4818) Vineyard FRS (6688) Whitlow Ranch Dam (6739) Discharge (cfs) Stage (feet) Contents Date (ac‐ft) (%full) 32 102 129 889 181 164 27 24 28 67 0 32 51 85 0 40 46 423 5.60 5.40 10.67 11.32 9.25 9.49 9.59 7.25 10.24 4.84 7.27 7.26 6.19 4.69 15.77 4.46 2.97 19.29 27.6 7.1 6.3 7.5 6.0 4.1 15.5 11.4 13.0 440.2 72.0 220.7 1.5 0.1 6,924 5.3 558.5 188.0 4.1 3.9 2.0 7.5 2.2 3.0 25.8 23.8 30.2 9.0 4.4 8.0 2.3 0.1 3.5 24.5 11.8 0.5 08/24/2018 08/08/2018 08/10/2018 08/10/2018 08/08/2018 08/08/2018 08/23/2018 08/23/2018 08/23/2018 08/24/2018 08/25/2018 08/10/2018 08/10/2018 08/08/2018 09/21/2018 08/23/2018 08/23/2018 08/22/2018 *Vineyard FRS under construction, and therefore the Volume and percent full data are not correct. Note: Many stations recorded multiple events. These are the maximum peaks for the year. xxiii Water Year 2018 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. All stations set up from mid‐2015 and forward have been assigned ALERT2 gage IDs. Stations set up before then have the ALERT1 station ID format (xxxx). ALERT2 stations have a 5‐digit ID number assigned (xxxx7). The data tables included with each gage are reports 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. xxiv Water Year 2018 Arizona Canal Diversion Channel at 36th Street, ID #4808 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 STREAMGAGE INSTALLATION DATE 02/24/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 02/24/1994 - Current LENGTH OF AVAILABLE POR DATA 24.60 Years | 8,985 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.12 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,237.92 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 324 cfs | 7.67 feet | 07/14/1999 FCDMC Annual Surface Water Report, Water Year 2018 Page 1 Watershed Map ACDC at 36th Street - water year peaks 350 Discharge (cfs) 300 250 200 150 100 50 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 2 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 02/14/2018 08/11/2018 Peak Gage Height 0.52 4.50 Peak Discharge (cfs) 3 59 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 22 60 104 165 279 400 FCDMC Annual Surface Water Report, Water Year 2018 Page 3 ACDC at 36th Street, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 10 1 11 15 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 17 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 59 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 33 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 17 MEAN 0 MAX 59 MIN 0 AC_FT 34 FCDMC Annual Surface Water Report, Water Year 2018 Page 4 Arizona Canal Diversion Channel at 14th Street – ID #4813 Site Data LOCATION Near 14th Street and Orangewood Avenue DRAINAGE AREA 10.2 mi2 STREAM TYPE Engineered Channel JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S04 T2N R3E LATITUDE N 33° 32' 37.3" | +33.54369 LONGITUDE W 112° 03' 05.1" | -112.05141 STREAMGAGE INSTALLATION DATE 02/09/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 02/09/1994 - Current LENGTH OF AVAILABLE POR DATA 24.64 Years | 9,000 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.40 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,213.70 feet M.S.L. 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 2018 Page 5 Watershed Map ACDC at 14th Street - water year peaks 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 6 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/08/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 0.90 0.75 2.87 1.25 Peak Discharge (cfs) 45 31 352 82 Hydrograph of peak WY 2018 flow event Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 95 316 548 834 1,290 1,680 FCDMC Annual Surface Water Report, Water Year 2018 Page 7 ACDC at 14th Street, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 9 3 10 4 11 27 12 13 14 15 16 17 18 19 20 21 22 23 7 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 3 39 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 45 352 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 6 77 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 42 MEAN 0 MAX 352 MIN 0 AC_FT 83 FCDMC Annual Surface Water Report, Water Year 2018 Page 8 Arizona Canal Diversion Channel at 43rd Avenue, ID #4823 Site Data LOCATION Near Peoria and 43rd Avenues DRAINAGE AREA 56 mi2 below Cave Buttes Dam 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 STREAMGAGE INSTALLATION DATE 11/14/1990 - WY 1991 AVAILABLE PERIOD OF RECORD (POR) 11/14/1990 - Current LENGTH OF AVAILABLE POR DATA 27.88 Years | 10,183 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.90 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,198.52 feet M.S.L. 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 2018 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 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 10 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/11/2018 08/02/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 1.44 1.92 0.97 1.62 1.27 Peak Discharge (cfs) 360 640 124 456 280 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency Flood Flow Frequency N=28, HEC-WRC computation (based on 28 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,080 2,160 3,100 4,180 5,870 7,370 FCDMC Annual Surface Water Report, Water Year 2018 Page 11 ACDC at 43rd Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 3 4 5 6 7 8 9 15 10 11 47 32 12 13 14 15 16 17 18 19 20 21 22 23 14 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 63 50 0 MEAN 0 0 0 0 0 0 0 0 0 2 2 0 MAX 0 0 0 0 0 0 0 0 0 640 456 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 124 99 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 112 MEAN 0 MAX 640 MIN 0 AC_FT 223 FCDMC Annual Surface Water Report, Water Year 2018 Page 12 Arizona Canal Diversion Channel at 67th Avenue, ID #5523 Site Data LOCATION On 67th Avenue south of Greenway Road DRAINAGE AREA 283.7 mi2 below 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 STREAMGAGE INSTALLATION DATE 06/07/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 06/07/1990 - Current LENGTH OF AVAILABLE POR DATA 28.32 Years | 10,343 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 4 ZERO GAGE HEIGHT ELEVATION 1,187.25 feet M.S.L. 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 2018 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 14 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 01/10/2018 07/10/2018 07/11/2018 07/31/2018 08/03/2018 08/09/2018 08/11/2018 08/24/2018 09/20/2018 Peak Gage Height (feet) 3.03 2.23 2.91 1.74 0.86 1.59 3.01 2.67 1.01 Peak Discharge (cfs) 293 121 260 68 21 56 288 201 25 Hydrograph of peak WY 2018 flow event. 08/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 15 Flood Flow Frequency Flood Flow Frequency N=28, HEC-WRC computation (based on 28 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 812 1,750 2,580 3,520 4,950 6,180 NOTE(1): These results are based on very limited data. NOTE(2): Cave Buttes Dam upstream limits the peak discharge from the upper portion of the watershed. 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 2018 Page 16 ACDC at 67th Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 5 4 5 6 7 8 9 4 9 23 10 106 70 11 10 44 117 12 107 4 13 14 14 15 16 17 18 19 3 20 6 21 22 23 24 128 25 16 26 27 28 29 --30 --1 31 --------24 -------------------------------------------------------------------------------TOTAL 0 0 0 120 0 0 0 0 0 271 292 9 MEAN 0 0 0 4 0 0 0 0 0 9 9 0 MAX 0 0 0 293 0 0 0 0 0 260 288 25 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 238 0 0 0 0 0 537 580 19 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 692 MEAN 2 MAX 293 MIN 0 AC_FT 1373 FCDMC Annual Surface Water Report, Water Year 2018 Page 17 Adobe Dam Pool, ID #5539 Site Data LOCATION Near 43rd Avenue and Deer Valley Drive DRAINAGE AREA 89.6 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 STREAMGAGE INSTALLATION DATE 10/28/1982 - WY 1983 AVAILABLE PERIOD OF RECORD (POR) 08/30/1988 - Current LENGTH OF AVAILABLE POR DATA 30.09 Years | 10,989 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.85 Feet Gage Height STAFF GAGES 14 ZERO GAGE HEIGHT ELEVATION 1,339.81 feet NAVD 1988 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 2018 Page 18 Watershed Map Volume (acre-feet) Adobe Dam Pool - water year peaks 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 19 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 20 Percent Spillway Capacity Adobe Dam Pool, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 21 Adobe Dam Pool, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 4 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 5 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 6 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 7 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 8 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 10 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 11 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 12 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 13 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 14 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 15 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 16 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 17 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 18 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 19 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 20 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 21 2.9 2.9 2.9 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 22 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 23 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 24 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 25 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 26 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 27 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 28 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 29 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 30 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 31 2.9 --2.9 2.9 --2.9 --2.9 --2.9 2.9 -------------------------------------------------------------------------------MEAN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MAX 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MIN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.85 MAX 2.85 MIN 2.85 FCDMC Annual Surface Water Report, Water Year 2018 Page 22 Adobe Dam Outlet, ID #5538 Site Data LOCATION Near 43rd Avenue and Deer Valley Drive DRAINAGE AREA 89.6 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 STREAMGAGE INSTALLATION DATE 10/28/1982 - WY 1983 AVAILABLE PERIOD OF RECORD (POR) 08/03/1990 - Current LENGTH OF AVAILABLE POR DATA 28.16 Years | 10,286 Days DATA GAPS IN POR None 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 1,239 cfs | 7.01 feet GH | 01/22/2010 FCDMC Annual Surface Water Report, Water Year 2018 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 24 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, There was no runoff recorded during Water Year 2018 Flood Flow Frequency Flows past this gage are regulated by Adobe Dam directly upstream. Flood Flow Frequency is therefore not valid. FCDMC Annual Surface Water Report, Water Year 2018 Page 25 Adobe Dam Outlet, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 3 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 17 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 2018 TOTAL 3 MEAN 0 MAX 17 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2018 Page 26 Agua Fria River at Grand Avenue, ID #5503 Site Data LOCATION On Grand Avenue west of 113th Avenue DRAINAGE AREA 1,628 mi2 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 STREAMGAGE INSTALLATION DATE 04/27/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 04/27/1994 - Current LENGTH OF AVAILABLE POR DATA 24.43 Years | 8,923 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.50 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 1.6 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,952 cfs | 6.50 feet | 10/27/2000 FCDMC Annual Surface Water Report, Water Year 2018 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 28 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/11/2018 08/11/2018 Peak Gage Height 3.43 3.92 3.24 Peak Discharge (cfs) 193 680 65 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 29 Agua Fria River at Grand Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 3 10 11 24 1 12 17 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 1 0 45 1 0 MEAN 0 0 0 0 0 0 0 0 0 2 0 0 MAX 0 0 0 0 0 0 0 3 0 680 65 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 1 1 0 0 0 0 1 1 1 88 3 1 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 49 MEAN 0 MAX 680 MIN 0 AC_FT 97 FCDMC Annual Surface Water Report, Water Year 2018 Page 30 Agua Fria River at Buckeye Road, ID #5403 Site Data LOCATION On Buckeye Road east of Dysart Road DRAINAGE AREA 2,241 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 STREAMGAGE INSTALLATION DATE 10/12/1988 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 10/12/1988 - Current LENGTH OF AVAILABLE POR DATA 29.97 Years | 10,946 Days DATA GAPS IN POR 09/06/2003 - 07/13/2004 STAGE GAGE ELEVATION 0.26 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 954.72 feet NAVD 1988 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 2018 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 32 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, There was no runoff recorded during Water Year 2018. 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 2018 Page 33 Agua Fria River at MC85, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 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 1 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX 1 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2018 Page 34 Amigos Wash, ID #6648 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 STREAMGAGE INSTALLATION DATE 01/09/2013 - WY 2013 AVAILABLE PERIOD OF RECORD (POR) 01/09/2013 - Current LENGTH OF AVAILABLE POR DATA 5.72 Years | 2,091 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None ZERO GAGE HEIGHT ELEVATION 1,783.87 feet NAVD 1988 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 2018 Page 35 Watershed Map Amigos Wash - water year peaks 800 Discharge (cfs) 700 600 500 400 300 200 100 0 2010 2011 2012 2013 FCDMC Annual Surface Water Report, Water Year 2018 Page 36 2014 2015 2016 Water Year 2017 2018 2019 2020 WY2018 Events Date of Peak 08/09/2018 08/10/2018 Peak Gage Height 1.95 2.05 Peak Discharge (cfs) 600 669 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 37 Amigos Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 5 10 16 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 22 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 669 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 43 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 22 MEAN 0 MAX 669 MIN 0 AC_FT 43 FCDMC Annual Surface Water Report, Water Year 2018 Page 38 Antelope Creek, ID #7168 Site Data LOCATION Located about 1.5 miles upstream from Martinez Creek (7013) DRAINAGE AREA 62 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 STREAMGAGE INSTALLATION DATE 07/09/2003 - WY 2003 AVAILABLE PERIOD OF RECORD (POR) 07/09/2003 - Current LENGTH OF AVAILABLE POR DATA 15.23 Years | 5,563 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.77 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,406.00 feet NAVD 1988 POINT OF ZERO FLOW 1.4 feet Gage Height EXTREME FOR PERIOD OF RECORD 7,169 cfs | 5.42 feet | 10/20/2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 39 Watershed Map Antelope Creek - water year peaks 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 40 2010 Water Year 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/12/2018 08/02/2018 08/14/2018 08/16/2018 08/17/2018 08/22/2018 Peak Gage Height (feet) 2.60 2.70 2.55 2.61 2.61 3.01 3.48 Peak Discharge (cfs) 469 566 425 478 478 968 1,389 Hydrograph of peak WY 2018 flow event, 08/22/2018 Flood Flow Frequency Flood Flow Frequency N=16, HEC-WRC computation (based on 16 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,140 3,550 6,210 9,680 15,600 21,300 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 41 Antelope Creek, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 11 3 4 5 6 7 8 9 10 11 12 49 13 --14 --12 15 --16 89 15 17 41 18 19 20 21 22 59 23 14 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 89 50 152 0 MEAN 0 0 0 0 0 0 0 0 3 2 5 0 MAX 0 0 0 0 0 0 0 0 469 566 1389 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 176 99 302 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 291 MEAN 1 MAX 1389 MIN 0 AC_FT 577 FCDMC Annual Surface Water Report, Water Year 2018 Page 42 Apache Junction FRS, ID #6673 Site Data LOCATION Located near Idaho Road and Lost Dutchman Boulevard DRAINAGE AREA 5.8 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 STREAMGAGE INSTALLATION DATE 09/15/1988 - WY 1988 AVAILABLE PERIOD OF RECORD (POR) 09/15/1988 - Current LENGTH OF AVAILABLE POR DATA 30.04 Years | 10,973 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.13 feet Gage Height STAFF GAGES 5 ZERO GAGE HEIGHT ELEVATION 1,785.79 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height SPILLWAY ELEVATION 16.00 feet Gage Height TOP OF DAM ELEVATION 27.00 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 43 Watershed Map Apache Juntion FRS - water year peaks Volume (acre-feet) 60 50 40 30 20 10 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 44 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/30/2018 08/10/2018 08/11/2018 08/24/2018 Peak Gage Height (feet) 0.91 0.76 3.30 3.35 5.60 Peak Volume (ac-ft) 0.1 0.1 4.8 5.0 27.6 Percent Spillway Capacity 0.0 0.0 0.7 0.7 4.1 Hydrograph of peak WY 2018 impoundment event, 08/24/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 45 Apache Junction FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 9 11 8 12 13 14 15 16 17 18 19 20 21 22 23 4 24 18 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 39 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 5 32 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 77 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 39 MEAN 0 MAX 32 MIN 0 AC_FT 77 FCDMC Annual Surface Water Report, Water Year 2018 Page 46 Apache Junction FRS, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 1 11 1 12 13 14 15 16 17 18 19 20 21 22 23 3 24 9 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 28 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 28 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 47 Apache Junction FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 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 1.3 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.3 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.8 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2.9 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 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.9 5.6 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.15 MAX 5.60 MIN 0.13 FCDMC Annual Surface Water Report, Water Year 2018 Page 48 Aspen Dam, ID #5988 Site Data LOCATION Near Aspen Drive and Golden Eagle Boulevard DRAINAGE AREA 2.02 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 STREAMGAGE INSTALLATION DATE 01/02/1997 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 01/02/1997 - Current LENGTH OF AVAILABLE POR DATA 21.74 Years | 7,942 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.24 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,810.88 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 2018 Page 49 Watershed Map Volume (acre-feet) Aspen Dam - water year peaks 10 9 8 7 6 5 4 3 2 1 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 50 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/14/2018 08/08/2018 Peak Gage Height (feet) 3.66 5.40 Peak Volume (ac-ft) 2.4 7.1 Percent Spillway Capacity 1.4 3.9 Hydrograph of peak WY 2018 impoundment event, 08/08/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 51 Aspen Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 4 5 6 7 8 7 9 10 11 12 13 14 3 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 3 7 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 63 102 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 6 13 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 10 MEAN 0 MAX 102 MIN 0 AC_FT 19 FCDMC Annual Surface Water Report, Water Year 2018 Page 52 Aspen Dam, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 2 7 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 7 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 53 Aspen Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.6 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 0.4 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 30 0.2 0.2 --0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 ----0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3.7 5.4 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 2018 MEAN 0.24 MAX 5.40 MIN 0.24 FCDMC Annual Surface Water Report, Water Year 2018 Page 54 Baseline Road at 43rd Avenue Basin, ID #66407 Site Data LOCATION Located on the basin at the northeast corner of Baseline Rd and 43rd Avenue DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S34 T1N R2E LATITUDE N 33° 22' 47.2" | +33.37978 LONGITUDE W 112° 09' 02.5" | -112.15070 STREAMGAGE INSTALLATION DATE 10/01/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/01/2015 - Current LENGTH OF AVAILABLE POR DATA 3.00 Years | 1,096 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,023.670 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 2018 Page 55 Location Map Volume (acre-feet) Baseline Road at 43rd Avenue Basin - water year peaks 10 9 8 7 6 5 4 3 2 1 0 2015 2016 FCDMC Annual Surface Water Report, Water Year 2018 Page 56 2017 2018 Water Year 2019 2020 WY2018 Events Date of Peak 01/09/2018 02/14/2018 07/09/2018 08/11/2018 Peak Gage Height (feet) 0.71 0.56 4.77 1.48 Peak Volume (ac-ft) 0.0 0.0 8.3 0.0 Percent Spillway Capacity 0.00 0.00 18.4 0.00 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 57 Baseline Road at 43rd Avenue Basin, runoff data Discharge, in fee, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ----------2 ----------3 ------------4 ------------5 ------------6 ------------7 ------------8 ------------9 ------------10 ------------11 ------------12 ------------13 ------------14 ------------15 ------------16 ------------17 ------------18 ------------19 ------------20 ------------21 ------------22 ------------23 ------------24 ------------25 ------------26 ------------27 ------------28 ----------29 --------------30 --------------31 ---------------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 ----------MEAN 0 0 0 0 0 0 0 ----------MAX 0 0 0 0 0 0 ------------MIN 0 0 0 0 0 0 ------------AC_FT 0 0 0 0 0 0 0 ---------------------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX --- MIN --- AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 58 Baseline Road at 43rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 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 8 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 8 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 59 Baseline Road at 43rd Avenue Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.9 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 0.3 0.6 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.7 0.6 0.2 0.2 0.2 0.2 4.8 1.5 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.20 MAX 4.77 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 60 Bender Wash, ID #6963 Site Data STATUS Active 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 STREAMGAGE INSTALLATION DATE 05/12/2004 - WY 2004 AVAILABLE PERIOD OF RECORD (POR) 05/12/2004 - Current LENGTH OF AVAILABLE POR DATA 14.39 Years | 5,255 Days DATA GAPS IN POR 10/06/2015 – 05/22/2017 STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,200.21 feet NAVD88 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,132 cfs | 5.20 feet | 08/13/2014 EXTREME OUTSIDE PERIOD OF RECORD 8,250 cfs | 10.78 feet | 09/07/2002 FCDMC Annual Surface Water Report, Water Year 2018 Page 61 Watershed Map Bender Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 62 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 09/02/2018 Peak Gage Height (feet) 1.42 2.29 Peak Discharge (cfs) 68 234 Hydrograph of peak WY 2018 flow event, 09/02/2018 Flood Flow Frequency Flood Flow Frequency HEC-WRC computation (based on data from 1963 – 1979, 1983, 1991 – 1996) 2-year 5-year 10-year 20-year 50-year 100-year 867 1,580 2,160 2,990 3,690 4,450 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 63 Bender Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 9 3 4 5 6 7 8 9 2 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 2 0 9 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 68 0 234 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 3 0 18 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 10 MEAN 0 MAX 234 MIN 0 AC_FT 21 FCDMC Annual Surface Water Report, Water Year 2018 Page 64 Berneil Wash, ID #4688 Site Data LOCATION Near 66th Street and Doubletree Road DRAINAGE AREA 8.3 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 STREAMGAGE INSTALLATION DATE 07/30/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 07/30/1998 - Current LENGTH OF AVAILABLE POR DATA 20.17 Years | 7,368 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,314.64 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,120 cfs | 2.88 feet | 08/24/2006 FCDMC Annual Surface Water Report, Water Year 2018 Page 65 Watershed Map Berneil Wash - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 66 2005 2010 Water Year 2015 2020 Berniel Wash, WY2018 Events Date of Peak 01/09/2018 07/09/2018 07/11/2018 07/11/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 0.35 0.64 0.74 0.77 1.04 0.47 Peak Discharge (cfs) 34 87 110 118 197 54 Hydrograph of peak WY 2018 flow event, 08/08/2018 Flood Flow Frequency Flood Flow Frequency N=21, HEC-WRC computation (based on 21 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 299 557 759 972 1,270 1,520 FCDMC Annual Surface Water Report, Water Year 2018 Page 67 Berneil Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 11 9 --3 10 2 1 11 11 3 12 3 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 2 0 0 0 0 0 16 15 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 34 0 0 0 0 0 118 197 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 4 0 0 0 0 0 33 30 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 34 MEAN 0 MAX 197 MIN 0 AC_FT 67 FCDMC Annual Surface Water Report, Water Year 2018 Page 68 Box Wash, ID #5273 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 STREAMGAGE INSTALLATION DATE 03/11/2003 - WY 2003 AVAILABLE PERIOD OF RECORD (POR) 03/11/2003 – Current LENGTH OF AVAILABLE POR DATA 15.56 Years | 5,683 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.23 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,255.00 feet NAVD 1988 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 2018 Page 69 Watershed Map Box Wash - water year peaks 4,500 Discharge (cfs) 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 70 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/14/2018 07/30/2018 08/17/2018 08/23/2018 Peak Gage Height (feet) 1.15 2.30 3.52 1.30 1.05 Peak Discharge (cfs) 274 1,008 2,220 341 234 Hydrograph of peak WY 2018 flow event, 07/30/2018 Flood Flow Frequency Flood Flow Frequency N=15, HEC-WRC computation (based on 15 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 51 673 2,280 5,830 15,700 29,100 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 71 Box Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 14 46 15 16 17 8 18 1 19 9 20 --21 --22 --23 3 24 25 26 27 28 29 --30 --27 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 10 0 50 11 0 MEAN 0 0 0 0 0 0 0 0 0 2 0 0 MAX 0 0 0 0 0 0 0 457 0 2220 341 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 19 0 99 21 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 70 MEAN 0 MAX 2220 MIN 0 AC_FT 139 FCDMC Annual Surface Water Report, Water Year 2018 Page 72 Buckeye FRS #1, ID #5203 Site Data LOCATION Located near I-10 and the Hassayampa River DRAINAGE AREA 74 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 STREAMGAGE INSTALLATION DATE 07/26/1983 - WY 1983 AVAILABLE PERIOD OF RECORD (POR) 11/23/1987 - Current LENGTH OF AVAILABLE POR DATA 30.86 Years | 11,270 Days DATA GAPS IN POR 01/21/2010 - 03/01/2010 STAGE GAGE ELEVATION Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,062.00 feet NAVD 1988 POINT OF ZERO FLOW (UNCONTROLLED OUTLET) 0.00 feet Gage Height SPILLWAY ELEVATION 18.7 feet Gage Height TOP OF DAM ELEVATION 27.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 73 Watershed Map Buckeye #1 FRS - water year peaks Volume (acre-feet) 700 600 500 400 300 200 100 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 74 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity No Impoundments Hydrograph of peak WY 2018 impoundment event There was no impoundment recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 75 Buckeye FRS #1, runoff data Discharge, in cubic feet per second, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 76 Buckeye FRS #1, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 77 Buckeye FRS #1, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --9 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --10 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --12 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --13 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --14 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --15 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --16 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --17 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 --18 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 19 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 20 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 21 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 22 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 23 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 24 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 25 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 26 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 27 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 28 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 29 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 30 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 31 0.5 --0.5 0.5 --0.5 --0.5 --0.5 0.5 -------------------------------------------------------------------------------MEAN 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 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 MIN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.49 MAX 0.50 MIN 0.46 FCDMC Annual Surface Water Report, Water Year 2018 Page 78 Buckeye FRS #2, ID #5208 Site Data LOCATION Located north of I-10 near Miller Road DRAINAGE AREA 5.7 mi2 Excluding structure 3 STREAM TYPE Dam of natural drainage JURISDICTION Buckeye, Arizona WATERSHED Lower Hassyampa SECTION/TOWNSHIP/RANGE S07 T1N R3W LATITUDE N 33° 26' 22.3" | +33.43954 LONGITUDE W 112° 35' 47.4" | -112.59650 STREAMGAGE INSTALLATION DATE 11/11/1992 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 11/11/1992 - Current LENGTH OF AVAILABLE POR DATA 25.89 Years | 9,455 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -1.39 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,098.17 feet NAVD 1988 POINT OF ZERO FLOW -1.54 feet Gage Height SPILLWAY ELEVATION 15.0 feet Gage Height TOP OF DAM ELEVATION 20.43 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 79 Watershed Map Buckeye #2 FRS - water year peaks Volume (acre-feet) 250 200 150 100 50 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 80 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 81 Percent Spillway Capacity Buckeye FRS #2, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 82 Buckeye FRS #2, volume data Volume, in Acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 83 Buckeye FRS #2, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 2 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 3 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 5 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 6 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 7 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 8 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 9 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 10 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 11 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 12 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 13 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 14 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 15 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 16 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 17 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 18 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 19 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 20 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 21 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 22 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 23 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 24 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 25 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 26 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 27 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 28 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 29 -1.4 -1.4 -1.4 -1.4 --- -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 30 -1.4 -1.4 -1.4 -1.4 --- -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 31 -1.4 --- -1.4 -1.4 --- -1.4 --- -1.4 --- -1.4 -1.4 -------------------------------------------------------------------------------MEAN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 MAX -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 MIN -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -1.4 -----------------------------------------------------------------------------WTR YR 2018 MEAN -1.39 MAX -1.39 MIN -1.39 FCDMC Annual Surface Water Report, Water Year 2018 Page 84 Buckeye FRS #3, ID #6813 Site Data LOCATION Located north of I-10 near Watson Road DRAINAGE AREA 9.3 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 STREAMGAGE INSTALLATION DATE 11/23/1992 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 11/23/1992 - Current LENGTH OF AVAILABLE POR DATA 25.85 Years | 9,443 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -4.08 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,151.07 Feet NAVD 1988 POINT OF ZERO FLOW -4.18 feet Gage Height SPILLWAY ELEVATION 14.00 feet Gage Height TOP OF DAM ELEVATION 20.30 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 85 Watershed Map Buckeye #3 FRS - water year peaks Volume (acre-feet) 180 160 140 120 100 80 60 40 20 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 86 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 07/11/2018 -2.98 0.0 0.0 There were no impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 87 Buckeye FRS #3, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 12 --1 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 1 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 9 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 2 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 9 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2018 Page 88 Buckeye FRS #3, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 89 Buckeye FRS #3, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 2 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 3 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 4 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 5 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 6 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 7 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 8 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 9 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 10 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 11 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.0 -4.1 -4.1 12 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.0 -4.1 -4.1 13 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 14 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 15 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 16 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 17 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 18 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 19 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 20 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 21 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 22 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 23 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 24 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 25 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 26 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 27 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 28 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 29 -4.1 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 30 -4.1 -4.1 -4.1 -4.1 --- -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 31 -4.1 --- -4.1 -4.1 --- -4.1 --- -4.1 --- -4.1 -4.1 -------------------------------------------------------------------------------MEAN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 MAX -4.1 -4.1 -4.0 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -3.0 -4.1 -4.1 MIN -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -4.1 -----------------------------------------------------------------------------WTR YR 2018 MEAN -4.08 MAX -2.98 MIN -4.08 FCDMC Annual Surface Water Report, Water Year 2018 Page 90 Bullard Wash at Indian School Road, ID #6868 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 A SECTION/TOWNSHIP/RANGE S29 T2N R1W LATITUDE N 33° 29' 32.7" | +33.49242 LONGITUDE W 112° 22' 54.1" | -112.38168 STREAMGAGE INSTALLATION DATE 06/27/2006 - WY 2006 AVAILABLE PERIOD OF RECORD (POR) 06/27/2006 - Current LENGTH OF AVAILABLE POR DATA 12.26 Years | 4,479 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 91 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 2018 Page 92 2020 WY2018 Events Date of Peak 07/16/2017 07/24/2017 07/30/2017 08/10/2017 08/11/2017 08/13/2017 Peak Gage Height 2.57 1.45 1.58 1.18 1.18 1.75 Peak Discharge (cfs) 509 161 195 105 105 237 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency Flood Flow Frequency N=13, HEC-WRC computation (based on 13 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 110 388 708 1,130 1,870 2,560 FCDMC Annual Surface Water Report, Water Year 2018 Page 93 Bullard Wash at Indian School Road, ID #6868 Discharge, in cfs, Water Year October 2017 to September 2018 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 --4 10 --9 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 13 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 113 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 25 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 13 MEAN 0 MAX 113 MIN 0 AC_FT 26 FCDMC Annual Surface Water Report, Water Year 2018 Page 94 Bullard Wash at Van Buren Street, ID #89207 Site Data LOCATION Located on Bullard Wash at Van Buren St. DRAINAGE AREA 88.3 mi2 STREAM TYPE Channelized natural stream 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 STREAMGAGE INSTALLATION DATE 12/13/2017 - WY 2018 AVAILABLE PERIOD OF RECORD (POR) 12/13/2017 - Current LENGTH OF AVAILABLE POR DATA 0.80 Years | 292 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.40 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 973.55 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD None recorded to date FCDMC Annual Surface Water Report, Water Year 2018 Page 95 Location Map W Van B u r en S t Discharge (cfs) Bullard Wash at Van Buren St. - water year peaks No runoff recorded to date 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 96 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency There are not enough data to compute Flood Frequency. FCDMC Annual Surface Water Report, Water Year 2018 Page 97 Bullard Wash at Van Buren Street, ID #89207 Discharge, in cub, Water Year October 2017 to September 2018 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 MEAN ----0 0 0 0 0 0 0 0 0 0 MAX ----0 0 0 0 0 0 0 0 0 0 MIN ----0 0 0 0 0 0 0 0 0 0 AC_FT ----0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 98 Bullard Wash at Gila River, ID #6863 Site Data LOCATION Located north of the Gila River and east of Estrella Parkway DRAINAGE AREA 44.7 mi2 STREAM TYPE Engineered Channel JURISDICTION Goodyear, Arizona WATERSHED White Tanks A SECTION/TOWNSHIP/RANGE S29 T1N R1W LATITUDE N 33° 23' 51.1" | +33.39754 LONGITUDE W 112° 23' 13.6" | -112.38712 STREAMGAGE INSTALLATION DATE 03/30/2000 - WY 2000 AVAILABLE PERIOD OF RECORD (POR) 03/30/2000 – 12/12/2017 LENGTH OF AVAILABLE POR DATA 17.70 Years | 6,466 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.19 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 906.50 feet M.S.L. POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 347 cfs | 1.29 feet | 08/02/2005 NOTE: This station was permanently removed from service on December 13, 2017. FCDMC Annual Surface Water Report, Water Year 2018 Page 99 Location Map Bullard Wash near Gila River - water year peaks 400 Discharge (cfs) 350 300 250 200 150 100 50 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 100 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, There was no runoff recorded during the avaialbel period of record for this gage prior to its removal from service. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 101 Bullard Wash at Gila River, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 ------------------MEAN 0 0 0 ------------------MAX 0 0 0 ------------------MIN 0 0 0 ------------------AC_FT 0 0 0 -----------------------------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 102 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 STREAMGAGE INSTALLATION DATE 10/01/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/01/2015 - Current LENGTH OF AVAILABLE POR DATA 3.00 Years | 1,096 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 6.4 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 103 Location Map Camelback Rd at 24th Avenue Basin - water year peaks Volume (acre-feet) 8 7 6 5 4 3 2 1 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 104 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No impoundments were recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 105 Percent Spillway Capacity Camelback Road at 24th Avenue Basin, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 106 Camelback Road at 24th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 107 Camelback Road at 24th Avenue Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 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 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 8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 9 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 10 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 12 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 13 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 14 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 15 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 16 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 17 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 18 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 19 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 20 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 21 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 22 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 23 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 24 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 25 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 26 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 27 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 28 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 29 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 30 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 31 0.5 --0.5 0.5 --0.5 --0.5 --0.5 0.5 -------------------------------------------------------------------------------MEAN 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 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 MIN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.50 MAX 0.50 MIN 0.50 FCDMC Annual Surface Water Report, Water Year 2018 Page 108 CAP Reach #11 Dike #1, ID #8407 Site Data LOCATION Located on the CAP dike, about ½ mile west of Tatum Blvd. DRAINAGE AREA Undetermined 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 STREAMGAGE INSTALLATION DATE 07/19/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 07/19/2016 - Current LENGTH OF AVAILABLE POR DATA 2.20 Years | 804 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 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 32.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 109 Watershed Map Volume (acre-feet) CAP Reach 11 Dike #1 - water year peaks 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 No impoundments recorded to date 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 110 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No Impoundments Hydrograph of peak WY 2018 impoundment event No impoundments were recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 111 Percent Spillway Capacity CAP Reach 11 Dike #1, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 112 CAP Reach 11 Dike #1, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 14 0 0 0 0 0 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 14 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 113 CAP Reach 11 Dike #1, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 0.10 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 114 CAP Reach #11, Dike #2, ID #58607 Site Data LOCATION Near the 60th Street alignment with the CAP canal. DRAINAGE AREA Undetermined STREAM TYPE Flood control dike JURISDICTION Phoenix, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S33 T4N R4E LATITUDE N 33° 38' 41.9" | +33.64498 LONGITUDE W 111° 56' 50.0" | -111.94721 STREAMGAGE INSTALLATION DATE 07/19/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 07/19/2016 - Current LENGTH OF AVAILABLE POR DATA 2.20 Years | 804 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 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 2018 Page 115 Watershed Map Volume (acre-feet) CAP Reach 11 Dike #2 - water year peaks 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 No impoundments recorded to date 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 116 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No Impoundments Hydrograph of peak WY 2018 impoundment event No impoundments were recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 117 Percent Spillway Capacity CAP Reach 11 Dike #2, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2 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 2018 TOTAL 0 MEAN 0 MAX 2 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 118 CAP Reach 11 Dike #2, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 5 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 0 435 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 435 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 119 CAP Reach 11 Dike #2, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 --31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 0.15 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 120 CAP Reach #11, Dike #3, ID #60107 Site Data LOCATION Near Hayden Road and the CAP DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S01 T3N R4E LATITUDE N 33° 38' 02.9" | +33.63414 LONGITUDE W 111° 54' 02.8" | -111.90079 STREAMGAGE INSTALLATION DATE 07/19/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 07/19/2016 - Current LENGTH OF AVAILABLE POR DATA 2.20 Years | 804 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 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 2018 Page 121 Watershed Map Volume (acre-feet) CAP Reach 11 Dike #3 - water year peaks 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 No Impoundments recorded to date 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 122 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No Impoundments Hydrograph of peak WY 2018 impoundment event No impoundments were recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 123 Percent Spillway Capacity CAP Reach 11 Dike #3, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 124 CAP Reach 11 Dike #3, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 125 CAP Reach 11 Dike #3, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 ----0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 0.00 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 126 CAP Reach #11, Dike #4, ID #59807 Site Data LOCATION Near the CAP and Thompson Peak Parkway DRAINAGE AREA Undetermined STREAM TYPE Flood control dike JURISDICTION Scottsdale, Arizona WATERSHED Upper Indian Bend SECTION/TOWNSHIP/RANGE S08 T3N R5E LATITUDE N 33° 37' 22.9" | +33.62304 LONGITUDE W 111° 52' 02.1" | -111.86725 STREAMGAGE INSTALLATION DATE 07/19/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 07/19/2016 - Current LENGTH OF AVAILABLE POR DATA 2.20 Years | 804 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 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 2018 Page 127 Watershed Map Volume (acre-feet) CAP Reach 11 Dike #4 - water year peaks 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 No impoundments recorded to date 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 128 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No Impoundments Hydrograph of peak WY 2018 impoundment event No impoundments were recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 129 Percent Spillway Capacity CAP Reach 11 Dike #4, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 130 CAP Reach 11 Dike #4, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 131 CAP Reach 11 Dike #4, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 0.92 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 132 Casandro Wash, ID #7093 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 STREAMGAGE INSTALLATION DATE 07/12/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 07/12/1994 - Current LENGTH OF AVAILABLE POR DATA 24.22 Years | 8,847 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.73 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,241.74 feet NAVD88 POINT OF ZERO FLOW 1.23 feet Gage Height EXTREME FOR PERIOD OF RECORD 668 cfs | 8.00 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 133 Watershed Map Casandro Wash - water year peaks 800 Discharge (cfs) 700 600 500 400 300 200 100 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 134 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 07/12/2018 1.87 32 Hydrograph of peak WY 2018 flow event, 07/12/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 107 275 439 637 953 1,240 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 135 Casandro Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 32 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 2018 TOTAL 0 MEAN 0 MAX 32 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 136 Casandro Dam, ID #7133 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 STREAMGAGE INSTALLATION DATE 08/15/1996 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 08/15/1996 - Current LENGTH OF AVAILABLE POR DATA 22.13 Years | 8,082 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.19 feet Gage Height STAFF GAGES 5 ZERO GAGE HEIGHT ELEVATION 2,136.66 feet NAVD 1988 POINT OF ZERO FLOW 0.00 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 2018 Page 137 Watershed Map Casandro Wash Dam - water year peaks Volume (acre-feet) 120 100 80 60 40 20 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 138 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 139 Percent Spillway Capacity Casandro Dam, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 140 Casandro Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 141 Casandro Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.19 MAX 0.67 MIN 0.19 FCDMC Annual Surface Water Report, Water Year 2018 Page 142 Cave Buttes Dam Pool, ID #4904 Site Data LOCATION Located about 1 mile west of Cave Creek Road and 1/2 mile south of Jomax Road DRAINAGE AREA 191 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 STREAMGAGE INSTALLATION DATE 01/25/1984 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 10/01/1987 - Current LENGTH OF AVAILABLE POR DATA 31.00 Years | 11,323 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.90 feet Gage Height STAFF GAGES 24 ZERO GAGE HEIGHT ELEVATION 1,562.00 feet NAVD 1988 POINT OF ZERO FLOW 0.00 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 2018 Page 143 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 144 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No impoundments recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 145 Percent Spillway Capacity Cave Buttes Dam Pool, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 146 Cave Buttes Dam Pool, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 2 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 3 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 4 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 5 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 6 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 7 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 8 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 10 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 11 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 12 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 13 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 14 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 15 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 16 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 17 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 18 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 19 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 20 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 21 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 22 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 23 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 24 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 25 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 26 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 27 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 28 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 29 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 1.9 1.9 1.9 1.9 30 1.9 1.9 1.9 1.9 --1.9 1.9 1.9 1.9 1.9 1.9 1.9 31 1.9 --1.9 1.9 --1.9 --1.9 --1.9 1.9 -------------------------------------------------------------------------------MEAN 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 MAX 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 MIN 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 1.9 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.90 MAX 1.91 MIN 1.90 FCDMC Annual Surface Water Report, Water Year 2018 Page 147 Cave Buttes Dam Outlet, ID #4903 Site Data LOCATION Located about 1 mile west of Cave Creek Road and 1/2 mile south of Jomax Road DRAINAGE AREA 191 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 STREAMGAGE INSTALLATION DATE 01/25/1984 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 07/30/1992 - Current LENGTH OF AVAILABLE POR DATA 26.17 Years | 9,559 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.33 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,558.80 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 418 cfs | 5.19 feet | 01/11/1993 FCDMC Annual Surface Water Report, Water Year 2018 Page 148 Watershed Map Cave Buttes Dam Outlet - water year peaks 450 Discharge (cfs) 400 350 300 250 200 150 100 50 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 149 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/14/2018 1.15 3 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency Flows past this gage are regulated by Cave Buttes Dam directly upstream. Flood Flow Frequency is therefore not valid. FCDMC Annual Surface Water Report, Water Year 2018 Page 150 Cave Buttes Dam Outlet, runoff data Station Number: 4903) Name: Cave Buttes Dam Outl Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 1 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 18 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 2 0 0 0 0 0 0 0 0 3 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 37 0 0 0 0 0 0 0 0 1 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 19 MEAN 0 MAX 3 MIN 0 AC_FT 38 FCDMC Annual Surface Water Report, Water Year 2018 Page 151 Cave Creek at Ashdale RS, ID #4947 Site Data LOCATION About 1 mile west of the Seven Springs Campgrounds DRAINAGE AREA 33 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 STREAMGAGE INSTALLATION DATE 02/25/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 02/25/2009 - Present LENGTH OF AVAILABLE POR DATA 9.60 Years | 3,505 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 3,250.00 feet NGVD 1929 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 8,735 cfs | 11.24 feet GH | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 152 Watershed Map Discharge (cfs) Cave Creek at Ashdale RS - water year peaks 10,000 9,000 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 2018 Page 153 2020 WY2018 Events Date of Peak 07/09/2018 07/14/2018 07/30/2018 Peak Gage Height 1.59 3.48 3.40 Peak Discharge (cfs) 60 558 544 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 154 Cave Creek at Ashdale RS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 10 11 12 13 14 23 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --21 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 46 0 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 1 0 0 0 0 0 558 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 0 0 0 0 91 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 46 MEAN 0 MAX 558 MIN 0 AC_FT 92 FCDMC Annual Surface Water Report, Water Year 2018 Page 155 Cave Creek at Spur Cross, ID #4923 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 STREAMGAGE INSTALLATION DATE 06/16/1993 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 06/16/1993 - Current LENGTH OF AVAILABLE POR DATA 25.29 Years | 9,238 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.64 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 156 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 157 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/11/2018 07/14/2018 07/30/2018 07/31/2018 Peak Gage Height (feet) 4.42 3.22 4.30 4.52 3.99 Peak Discharge (cfs) 155 13 132 178 81 Hydrograph of peak WY 2018 flow event, 07/30/2018 Flood Flow Frequency Flood Flow Frequency N=38, HEC-WRC computation (based on 38 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 826 3,110 6,160 10,800 20,100 30,400 FCDMC Annual Surface Water Report, Water Year 2018 Page 158 Cave Creek at Spur Cross, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 5 1 1 1 1 1 1 1 1 1 1 1 6 1 1 1 1 1 1 1 1 1 1 1 7 1 1 1 1 1 1 1 1 1 1 1 8 1 1 1 1 1 1 1 1 1 1 1 9 1 1 1 1 1 1 1 1 1 1 1 10 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 12 1 1 1 1 1 1 1 1 1 1 1 13 1 1 1 1 1 1 1 1 1 1 1 14 1 1 1 1 1 1 1 1 1 9 1 15 1 1 1 1 1 1 1 1 1 2 1 16 1 1 1 1 1 1 1 1 10 1 1 17 1 1 1 1 1 1 1 1 1 1 1 18 1 1 1 1 1 1 1 1 1 1 1 19 1 1 1 1 1 1 1 1 1 1 1 20 1 1 1 1 1 1 1 1 1 1 1 21 1 1 1 1 1 1 1 1 1 1 1 22 1 1 1 1 1 1 1 1 1 1 1 23 1 1 1 1 1 1 1 1 1 1 1 24 1 1 1 1 1 1 1 1 1 1 2 25 1 1 1 1 1 1 1 1 1 1 1 26 1 1 1 1 1 1 1 1 1 1 1 27 1 1 1 1 1 1 1 1 1 1 1 28 1 1 1 1 1 1 1 1 1 1 1 29 1 1 1 1 --1 1 1 1 1 30 1 1 1 1 --1 1 1 1 13 31 1 --1 1 --1 --1 --21 -------------------------------------------------------------------------------TOTAL 27 27 28 28 25 28 27 27 36 71 28 0 MEAN 1 1 1 1 1 1 1 1 1 2 1 0 MAX 1 1 1 1 1 1 1 1 217 178 16 0 MIN 1 1 1 1 1 1 1 1 1 1 0 0 AC_FT 54 53 56 56 49 56 53 54 72 140 55 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 353 MEAN 1 MAX 217 MIN 0 AC_FT 700 FCDMC Annual Surface Water Report, Water Year 2018 Page 159 Cave Creek, ID #4893 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 STREAMGAGE INSTALLATION DATE 05/28/2003 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 05/28/2003 - Current LENGTH OF AVAILABLE POR DATA 15.35 Years | 5,605 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,989.89 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 2018 Page 160 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 161 2010 Water Year 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/11/2018 07/30/2018 08/23/2018 08/24/2018 Peak Gage Height (feet) 4.79 2.05 2.20 5.82 4.00 Peak Discharge (cfs) 754 56 90 1,782 486 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=16, HEC-WRC computation (based on 16 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 2,000 5,850 10,300 16,400 27,900 39,700 FCDMC Annual Surface Water Report, Water Year 2018 Page 162 Cave Creek, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2 12 13 14 1 15 16 22 17 1 18 19 20 21 22 23 37 24 12 25 26 27 28 29 --30 --2 31 --------3 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 23 8 48 0 MEAN 0 0 0 0 0 0 0 0 1 0 2 0 MAX 0 0 0 0 0 0 0 0 754 90 1782 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 46 16 96 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 80 MEAN 0 MAX 1782 MIN 0 AC_FT 158 FCDMC Annual Surface Water Report, Water Year 2018 Page 163 Cave Creek near Cave Creek, ID #4918 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 STREAMGAGE INSTALLATION DATE 05/27/1994 - WY 1994 (USGS gaged since 1958) AVAILABLE PERIOD OF RECORD (POR) 05/27/1994 - Current LENGTH OF AVAILABLE POR DATA 24.35 Years | 8,893 Days DATA GAPS IN POR 11/30/2009 - 06/16/2010 | 09/08/2013 10/28/2013 STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,802.15 feet NAVD 1988 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 2018 Page 164 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 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 165 WY2018 Events Date of Peak 06/16/2018 08/23/2018 08/24/2018 Peak Gage Height (feet) 1.69 3.24 1.34 Peak Discharge (cfs) 402 1,554 275 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=60, HEC-WRC computation (based on 60 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,210 3,910 7,100 11,500 19,600 27,800 FCDMC Annual Surface Water Report, Water Year 2018 Page 166 Cave Creek near Cave Creek, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 10 17 18 19 20 21 22 23 29 24 7 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 10 0 36 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 402 0 1027 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 20 0 72 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 46 MEAN 0 MAX 1027 MIN 0 AC_FT 92 FCDMC Annual Surface Water Report, Water Year 2018 Page 167 Cave Creek at CAP, ID #4907 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 STREAMGAGE INSTALLATION DATE 04/14/2014 - WY 2014 AVAILABLE PERIOD OF RECORD (POR) 04/14/2014 - Current LENGTH OF AVAILABLE POR DATA 4.47 Years | 1,631 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,505.66 feet NGVD29 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 438 cfs | 0.92 feet | 08/20/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 168 Watershed Map Discharge (cfs) Cave Creek at CAP - water year peaks 500 450 400 350 300 250 200 150 100 50 0 2010 2012 FCDMC Annual Surface Water Report, Water Year 2018 Page 169 2014 2016 Water Year 2018 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/11/2018 0.33 93 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 170 Cave Creek at CAP, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 5 12 2 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 7 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 93 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 13 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 7 MEAN 0 MAX 93 MIN 0 AC_FT 13 FCDMC Annual Surface Water Report, Water Year 2018 Page 171 Cave Creek at Cactus Road – ID #4833 Site Data LOCATION Near Cactus Road and 25th Avenue DRAINAGE AREA 33.6 mi2 below Cave Buttes Dam STREAM TYPE Basin / Outlet / Weir JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S13 T3N R2E LATITUDE N 33° 35' 58.9" | +33.59969 LONGITUDE W 112° 06' 43.2" | -112.11201 STREAMGAGE INSTALLATION DATE 06/27/1991 - WY 1991 AVAILABLE PERIOD OF RECORD (POR) 06/27/1991 - Current LENGTH OF AVAILABLE POR DATA 27.26 Years | 9,958 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 2 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,247 cfs | 12.85 feet | 08/03/2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 172 Watershed Map Cave Creek at Cactus - water year peaks 3,500 Discharge (cfs) 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 173 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 01/10/2018 07/09/2018 07/12/2018 08/23/2018 Peak Gage Height (feet) 2.51 6.03 8.90 6.40 Peak Discharge (cfs) 55 171 228 178 Hydrograph of peak WY 2018 flow event, 07/12/2018 Flood Flow Frequency Flood Flow Frequency N=27, HEC-WRC computation (based on 27 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 463 1,050 1,640 2,400 3,730 5,040 FCDMC Annual Surface Water Report, Water Year 2018 Page 174 Cave Creek at Cactus Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1 2 3 4 5 6 7 8 9 2 33 31 10 24 70 23 11 21 19 12 181 15 13 116 5 14 89 15 72 16 55 17 38 18 28 19 21 20 1 14 21 3 22 23 23 24 89 25 26 27 28 29 --30 --3 31 --------12 -------------------------------------------------------------------------------TOTAL 0 0 0 26 0 0 3 0 0 757 206 0 MEAN 0 0 0 1 0 0 0 0 0 24 7 0 MAX 0 0 0 55 0 0 1 0 0 228 178 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 52 0 0 6 0 0 1502 409 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 992 MEAN 3 MAX 228 MIN 0 AC_FT 1969 FCDMC Annual Surface Water Report, Water Year 2018 Page 175 Centennial Wash near Aguila, ID #5178 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 STREAMGAGE INSTALLATION DATE 06/05/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 06/05/2001 - Current LENGTH OF AVAILABLE POR DATA 17.32 Years | 6,327 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 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 2018 Page 176 Watershed Map Centennial Wash near Aguila - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 177 2010 Water Years 2015 2020 WY2018 Events Date of Peak 07/28/2018 08/22/2018 Peak Gage Height 0.63 0.80 Peak Discharge (cfs) 28 39 Hydrograph of peak WY 2018 flow event, 08/22/2018 Flood Flow Frequency Flood Flow Frequency N=18, HEC-WRC computation (based on 18 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 28 140 312 591 1,190 1,860 FCDMC Annual Surface Water Report, Water Year 2018 Page 178 Centennial Wash near Aguila, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 --4 --5 6 7 8 9 --10 --11 --12 --13 --14 --15 --16 --17 --18 --19 20 21 --22 3 23 6 24 25 26 27 28 2 29 ----4 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 6 9 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 28 39 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 12 18 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 15 MEAN 0 MAX 39 MIN 0 AC_FT 30 FCDMC Annual Surface Water Report, Water Year 2018 Page 179 Centennial Wash at Wenden, ID #5093 Site Data LOCATION In La Paz County on the eastern side of Wenden DRAINAGE AREA 586 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 STREAMGAGE INSTALLATION DATE 09/16/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 09/16/1998 - Current LENGTH OF AVAILABLE POR DATA 20.04 Years | 7,320 Days DATA GAPS IN POR 12/01/2002 - 07/07/2004 STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,858.64 feet NAVD 1988 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 2018 Page 180 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 181 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/13/2018 07/28/2018 07/30/2018 Peak Gage Height (feet) 0.37 1.72 2.09 0.75 Peak Discharge (cfs) 35 475 751 105 Hydrograph of peak WY 2018 flow event, 07/28/2018 Flood Flow Frequency Flood Flow Frequency N=20, HEC-WRC computation (based on 20 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,300 6,010 12,300 21,200 37,600 53,700 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 182 Centennial Wash at Wenden, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --1 13 --80 14 1 15 16 17 18 19 20 21 22 23 24 25 26 27 28 39 29 --9 30 --12 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 145 0 0 MEAN 0 0 0 0 0 0 0 0 0 5 0 0 MAX 0 0 0 0 0 0 0 0 0 751 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 0 287 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 145 MEAN 0 MAX 751 MIN 0 AC_FT 287 FCDMC Annual Surface Water Report, Water Year 2018 Page 183 Centennial Levee, ID #5123 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 STREAMGAGE INSTALLATION DATE 07/09/2003 - WY 2003 AVAILABLE PERIOD OF RECORD (POR) 07/09/2003 - Current LENGTH OF AVAILABLE POR DATA 15.23 Years | 5,563 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,261.00 feet NAVD 1988 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 2018 Page 184 Watershed Map Centennial Levee - water year peaks 1,200 Axis Title 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 185 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/09/2018 1.46 39 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 186 Centennial Levee, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 4 10 5 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 9 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 39 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 18 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 10 MEAN 0 MAX 39 MIN 0 AC_FT 19 FCDMC Annual Surface Water Report, Water Year 2018 Page 187 Centennial Wash at SPRR, ID #5103 Site Data LOCATION Located about 6 miles west of Arlington DRAINAGE AREA 1,817 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 STREAMGAGE INSTALLATION DATE 02/09/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 02/09/1990 - Current LENGTH OF AVAILABLE POR DATA 28.64 Years | 10,461 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 3.16 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 839.44 feet NAVD 1988 POINT OF ZERO FLOW 2.0 feet Gage Height 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 2018 Page 188 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 189 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/13/2018 08/15/2018 Peak Gage Height (feet) 6.20 5.55 Peak Discharge (cfs) 221 81 Hydrograph of peak WY 2018 flow event, 08/13/2018 Flood Flow Frequency Flood Flow Frequency N=29, HEC-WRC computation (based on 29 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,050 3,920 7,380 12,100 20,400 28,400 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 190 Centennial Wash at SPRR, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 3 13 69 14 15 11 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 83 0 MEAN 0 0 0 0 0 0 0 0 0 0 3 0 MAX 0 0 0 0 0 0 0 0 0 0 221 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 0 165 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 83 MEAN 0 MAX 221 MIN 0 AC_FT 165 FCDMC Annual Surface Water Report, Water Year 2018 Page 191 Centennial Tributary at Dobbins Road, ID #5049 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 STREAMGAGE INSTALLATION DATE 09/26/2012 - WY 2012 AVAILABLE PERIOD OF RECORD (POR) 10/01/2012 - Current LENGTH OF AVAILABLE POR DATA 6.00 Years | 2,191 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 192 Watershed Map Centennial Tributary at Dobbins Road - water year peaks 300 Discharge (cfs) 250 200 150 100 50 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 193 2015 Water Year 2020 WY2018 Events Date of Peak 07/08/2018 08/16/2018 Peak Gage Height 1.65 1.87 Peak Discharge (cfs) 58 88 Hydrograph of peak WY 2018 flow event, 08/16/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 194 Centennial Tributary at Dobbins Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 9 10 11 12 13 14 15 16 2 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 2 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 58 88 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 4 4 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 4 MEAN 0 MAX 88 MIN 0 AC_FT 8 FCDMC Annual Surface Water Report, Water Year 2018 Page 195 Cline Creek, ID #5583 Site Data LOCATION Located about 1 mile north of Circle Mountain Road just off 12th Street DRAINAGE AREA 10.8 mi2 STREAM TYPE Natural Stream JURISDICTION Maricopa County, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S33 T7N R3E LATITUDE N 33° 54' 03.5" | +33.90097 LONGITUDE W 112° 03' 17.9" | -112.05497 STREAMGAGE INSTALLATION DATE 11/20/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 11/20/2001 - Current LENGTH OF AVAILABLE POR DATA 16.86 Years | 6,159 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.95 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 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 2018 Page 196 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 197 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/14/2018 08/14/2018 Peak Gage Height (feet) 1.54 2.61 Peak Discharge (cfs) 117 403 Hydrograph of peak WY 2018 flow event, 08/14/2018 Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 184 1,010 2,280 4,330 8,570 13,200 NOTE(1): These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 198 Cline Creek, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 4 12 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 4 12 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 117 403 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 8 23 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 16 MEAN 0 MAX 403 MIN 0 AC_FT 31 FCDMC Annual Surface Water Report, Water Year 2018 Page 199 Colter Channel, ID #5408 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 AVAILABLE PERIOD OF RECORD (POR) 06/29/1994 - Current LENGTH OF AVAILABLE POR DATA 24.26 Years | 8,860 Days DATA GAPS IN POR 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 0.00 feet Gage Height 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 2018 Page 200 Watershed Map Colter Channel at El Mirage Road - water year peaks 180 Discharge (cfs) 160 140 120 100 80 60 40 20 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 201 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/08/2018 08/11/2018 Peak Gage Height (feet) 0.42 0.34 0.34 Peak Discharge (cfs) 23 19 19 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 44 74 101 131 179 222 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 202 Colter Channel, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 1 10 11 2 1 12 1 13 14 15 16 17 18 1 19 11 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 12 0 4 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 39 0 28 19 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 23 0 8 4 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 17 MEAN 0 MAX 39 MIN 0 AC_FT 35 FCDMC Annual Surface Water Report, Water Year 2018 Page 203 Columbus Wash – ID #5013 Site Data LOCATION Located at the east edge of Yuma County in the Hyder Valley DRAINAGE AREA 25.4 mi2 STREAM TYPE Encroached Natural Stream JURISDICTION Yuma County, Arizona WATERSHED Lower Gila SECTION/TOWNSHIP/RANGE S06 T4S R10W LATITUDE N 33° 06' 45.7" | +33.11268 LONGITUDE W 113° 20' 22.1" | -113.33946 STREAMGAGE INSTALLATION DATE 09/22/1999 - WY 1999 AVAILABLE PERIOD OF RECORD (POR) 09/22/1999 - Current LENGTH OF AVAILABLE POR DATA 19.03 Years | 6,949 Days DATA GAPS IN POR 12/18/2012 - 01/07/2013 STAGE GAGE ELEVATION 2.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 700.00 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 2018 Page 204 Watershed Map Columbus Wash - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 205 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 08/10/2018 09/08/2018 Peak Gage Height 2.70 2.58 Peak Discharge (cfs) 85 66 Hydrograph of peak WY 2018 flow event Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 206 Columbus Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 4 9 --10 --1 11 --12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1 4 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 85 66 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 2 8 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 5 MEAN 0 MAX 85 MIN 0 AC_FT 10 FCDMC Annual Surface Water Report, Water Year 2018 Page 207 Copper Wash, ID #5033 Site Data LOCATION Located in western Maricopa County near the Hyder Valley DRAINAGE AREA 6.6 mi2 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 STREAMGAGE INSTALLATION DATE 02/20/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 02/20/2001 - Current LENGTH OF AVAILABLE POR DATA 17.61 Years | 6,432 Days DATA GAPS IN POR 08/27/2003 - 09/04/2003 STAGE GAGE ELEVATION 0.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,064.00 feet NAVD 1988 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,780 cfs | 5.69 feet | 08/27/2003 FCDMC Annual Surface Water Report, Water Year 2018 Page 208 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 209 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff events recorded during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=18, HEC-WRC computation (based on 18 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 46 288 703 1,420 3,030 4,910 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 210 Copper Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 211 Crossroads Park Basin, ID #6623 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 STREAMGAGE INSTALLATION DATE 12/18/1995 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 12/18/1995 - Current LENGTH OF AVAILABLE POR DATA 22.79 Years | 8,323 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 1.33 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,246.67 feet M.S.L. POINT OF ZERO FLOW None - Pump Control SPILLWAY CREST ELEVATION None TOP OF BASIN ELEVATION 23.3 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 212 Location Map Crossroads Park Basin - water year peaks Volume (acre-feet) 40 35 30 25 20 15 10 5 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 213 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity No impoundments Hydrograph of peak WY 2018 impoundment event There were no impoundments above the base lake level recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 214 Crossroads Park, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 215 Crossroads Park Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 2 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 5 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 6 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 7 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 8 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 9 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 10 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 11 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 12 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 13 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 14 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 15 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 16 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 17 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 18 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 19 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 20 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 21 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 22 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 23 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 24 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 25 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 26 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 27 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 28 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 29 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 30 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 31 1.3 --1.3 1.3 --1.3 --1.3 --1.3 1.3 -------------------------------------------------------------------------------MEAN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MAX 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MIN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.33 MAX 1.33 MIN 1.33 FCDMC Annual Surface Water Report, Water Year 2018 Page 216 Cruff Wash, ID #5078 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 STREAMGAGE INSTALLATION DATE 05/14/2002 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 05/14/2002 - Current LENGTH OF AVAILABLE POR DATA 16.38 Years | 5,984 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.33 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 937.91 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,550 cfs | 4.14 feet | 07/29/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 217 Watershed Map Cruff Wash - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 218 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event There were no recorded runoff events during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 370 874 1,300 1,770 2,440 2,980 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 219 Cruff Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 220 Daggs Wash, ID #5498 Site Data LOCATION Near 307th Avenue and Peak View Road DRAINAGE AREA 13.3 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 STREAMGAGE INSTALLATION DATE 11/08/2007 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 11/08/2007 - Current LENGTH OF AVAILABLE POR DATA 10.90 Years | 3,980 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,668.62 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 617 cfs | 2.10 feet Gage Height | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 221 Watershed Maps Daggs Wash - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 222 2020 WY2018 Events Date of Peak 07/11/2018 07/14/2018 Peak Gage Height 0.80 1.45 Peak Discharge (cfs) 161 389 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 223 Daggs Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 6 12 13 14 18 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 15 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 389 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 29 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 15 MEAN 0 MAX 389 MIN 0 AC_FT 29 FCDMC Annual Surface Water Report, Water Year 2018 Page 224 Delaney Wash – ID #5108 Site Data LOCATION Near Salome Road and 427th Avenue DRAINAGE AREA 49 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 STREAMGAGE INSTALLATION DATE 12/22/1999 - WY 2000 AVAILABLE PERIOD OF RECORD (POR) 12/22/1999 - Current LENGTH OF AVAILABLE POR DATA 18.78 Years | 6,858 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.11 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,112.03 feet NAVD 1988 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,800 cfs | 8.06 feet | 09/09/2013 FCDMC Annual Surface Water Report, Water Year 2018 Page 225 Watershed Map Delaney Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 226 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/12/2018 2.01 138 Hydrograph of peak WY 2018 flow event, 08/12/2018 Flood Flow Frequency Flood Flow Frequency N=19, HEC-WRC computation (based on 19 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 531 1,050 1,500 2,010 2,810 3,500 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 227 Delaney Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 3 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 3 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 120 0 0 0 0 0 53 0 5 138 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 7 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 4 MEAN 0 MAX 138 MIN 0 AC_FT 7 FCDMC Annual Surface Water Report, Water Year 2018 Page 228 Desert Hills Wash, ID #4898 Site Data LOCATION Located west of 16th Street, on Joy Ranch Road DRAINAGE AREA 1.0 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 STREAMGAGE INSTALLATION DATE 03/02/2006 - WY 2006 AVAILABLE PERIOD OF RECORD (POR) 03/02/2006 - Current LENGTH OF AVAILABLE POR DATA 12.58 Years | 4,596 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.55 feet Gage Height EXTREME FOR PERIOD OF RECORD 252 cfs | 4.90 feet | 08/19/2014 & 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 229 Watershed Map Desert Hills Wash - water year peaks 350 Discharge (cfs) 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 230 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 07/14/2018 5.82 318 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency Flood Flow Frequency N=13, HEC-WRC computation (based on 13 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 130 237 316 396 502 584 FCDMC Annual Surface Water Report, Water Year 2018 Page 231 Desert Hills Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 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 7 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 318 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 15 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 7 MEAN 0 MAX 318 MIN 0 AC_FT 15 FCDMC Annual Surface Water Report, Water Year 2018 Page 232 Dreamy Draw Dam, ID #4803 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 STREAMGAGE INSTALLATION DATE 01/24/1984 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 08/29/1988 - Current LENGTH OF AVAILABLE POR DATA 30.09 Years | 10,990 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.12 feet Gage Height STAFF GAGES 9 ZERO GAGE HEIGHT ELEVATION 1,371.46 feet NAVD1988 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 35.50 feet Gage Height TOP OF DAM ELEVATION 47.04 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 233 Watershed Map Dreamy Draw Dam - water year peaks Volume (acre-feet) 40 35 30 25 20 15 10 5 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 234 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/10/2018 08/23/2018 Peak Gage Height (feet) 10.67 8.86 Peak Volume (ac-ft) 6.3 3.3 Percent Spillway Capacity 1.9 1.0 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 235 Dreamy Draw Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 1 6 7 8 9 10 3 11 6 12 13 14 15 16 17 18 19 20 21 22 23 5 24 1 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 2 0 0 0 0 0 0 0 15 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 1 1 0 0 0 0 0 0 129 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 4 1 0 0 0 0 0 0 29 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 17 MEAN 0 MAX 129 MIN 0 AC_FT 34 FCDMC Annual Surface Water Report, Water Year 2018 Page 236 Dreamy Draw Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 6 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 6 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 237 Dreamy Draw Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.3 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.7 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.6 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 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 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10.7 0.1 MIN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.12 MAX 10.67 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 238 Dysart Drain at LAFB, ID #5413 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 STREAMGAGE INSTALLATION DATE 08/22/1996 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 08/22/1996 - Current LENGTH OF AVAILABLE POR DATA 22.11 Years | 8,075 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 239 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 240 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/11/2018 1.30 89 NOTE: There is a more or less continual base flow at this location. Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=23, HEC-WRC computation (based on 23 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 77 180 284 413 632 841 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 241 Dysart Drain at LAFB, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 12 13 14 15 16 17 18 19 1 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 1 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 96 0 2 89 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 2 0 0 2 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 2 MEAN 0 MAX 96 MIN 0 AC_FT 4 FCDMC Annual Surface Water Report, Water Year 2018 Page 242 Dysart Drain at El Mirage Road, ID #5423 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 STREAMGAGE INSTALLATION DATE 03/07/1997 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 03/07/1997 - Current LENGTH OF AVAILABLE POR DATA 21.57 Years | 7,878 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,052.20 feet M.S.L. POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 823 cfs | 5.30 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 243 Watershed Map Dysart Drain at El Mirage Road - water year peaks 900 Discharge (cfs) 800 700 600 500 400 300 200 100 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 244 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/11/2018 08/08/2018 08/11/2018 08/14/2018 Peak Gage Height (feet) 0.92 0.75 1.15 0.75 Peak Discharge (cfs) 36 26 53 26 NOTE: There is a more or less continual base flow at this location. Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 72 313 626 1,070 1,890 2,700 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 245 Dysart Drain at El Mirage Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 26 26 1 --2 26 26 1 --3 26 26 --4 26 26 --5 26 26 --6 26 26 --7 26 26 8 29 26 1 9 27 26 --10 26 26 --11 26 26 3 5 --12 26 26 13 26 26 14 26 26 1 15 26 26 16 26 26 --17 27 26 18 26 26 19 28 26 20 28 26 21 26 26 22 26 26 23 26 26 24 26 26 25 26 26 26 26 26 27 26 26 28 26 26 29 26 --30 26 ----31 25 -----------------------------------------------------------------------------------------TOTAL 814 727 0 0 0 0 0 1 1 4 9 0 MEAN 26 24 0 0 0 0 0 0 0 0 0 0 MAX 30 27 0 0 0 0 0 1 1 41 53 0 MIN 25 0 0 0 0 0 0 0 0 0 0 0 AC_FT 1614 1441 0 0 0 0 0 2 2 8 18 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1556 MEAN 4 MAX 53 MIN 0 AC_FT 3086 FCDMC Annual Surface Water Report, Water Year 2018 Page 246 East Fork Cave Creek Basin #1, ID #4648 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 STREAMGAGE INSTALLATION DATE 03/02/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 03/02/1994 - Current LENGTH OF AVAILABLE POR DATA DATA 24.58 Years | 8,979 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.23 feet Gage Height 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 2018 Page 247 Watershed Map EFCC Basin #1 - water year peaks Volume (acre-feet) 30 25 20 15 10 5 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 248 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/11/2018 Peak Gage Height (feet) 1.52 1.47 Peak Volume (ac-ft) 2.4 2.1 Percent Spillway Capacity 4.1 3.7 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 249 East Fork Cave Creek Basin #1, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 1 8 9 1 1 10 11 2 12 1 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --1 30 --1 31 ---------------------------------------------------------------------------------------TOTAL 7 5 0 13 13 15 14 15 14 17 15 14 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 3 0 2 0 0 0 19 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 14 9 0 27 26 31 29 30 29 35 30 29 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 144 MEAN 0 MAX 19 MIN 0 AC_FT 286 FCDMC Annual Surface Water Report, Water Year 2018 Page 250 East Fork Cave Creek Basin #1, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 2 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 2 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 251 East Fork Cave Creek Basin #1, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.3 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 1.5 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 2018 MEAN 0.23 MAX 1.52 MIN 0.23 FCDMC Annual Surface Water Report, Water Year 2018 Page 252 East Fork Cave Creek Basin #3A, ID #8807 Site Data LOCATION Located near Cave Creek Road and Grovers Avenue DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S34 T4N R3E LATITUDE N 33° 38' 46.0" | +33.65630 LONGITUDE W 112° 02' 21.0" | -112.03840 STREAMGAGE INSTALLATION DATE 10/14/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/14/2015 - Current LENGTH OF AVAILABLE POR DATA 2.97 Years | 1,083 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 14.3 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 253 Watershed Map EFCC Basin #3a - water year peaks Volume (acre-feet) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2015 2016 2017 2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 254 2019 2020 2021 Water Year 2022 2023 2024 2025 WY2018 Events Date of Peak 01/09/2018 07/09/2018 Peak Gage Height (feet) 0.98 1.00 Peak Volume (ac-ft) 1.0 1.1 Percent Spillway Capacity 0.9 0.9 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 255 EFCC Basin #3A, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 3 10 1 11 12 13 14 15 16 17 18 19 20 21 6 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 6 3 0 0 0 0 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 23 28 0 0 0 0 0 29 35 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 11 5 0 0 0 0 0 1 1 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 10 MEAN 0 MAX 35 MIN 0 AC_FT 19 FCDMC Annual Surface Water Report, Water Year 2018 Page 256 EFCC Basin #3A, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 1 0 0 0 0 0 1 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 257 EFCC Basin #3A, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 3 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 10 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 11 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 12 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 13 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 14 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 15 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 16 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 17 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 18 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 19 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 20 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 21 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 22 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 23 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 24 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 25 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 26 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 27 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 28 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 29 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 30 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 31 0.8 --0.8 0.8 --0.8 --0.8 --0.8 0.8 -------------------------------------------------------------------------------MEAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MAX 0.8 0.8 0.8 1.0 0.8 0.8 0.8 0.8 0.8 1.0 1.2 0.8 MIN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.80 MAX 1.17 MIN 0.80 FCDMC Annual Surface Water Report, Water Year 2018 Page 258 East Fork Cave Creek Basin #3B, ID #4683 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 STREAMGAGE INSTALLATION DATE 09/13/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 09/13/1994 - Current LENGTH OF AVAILABLE POR DATA DATA 24.05 Years | 8,784 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,419.45 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 14.6 feet Gage Height TOP OF BASIN ELEVATION 15.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 259 Location Map EFCC Basin #3b - water year peaks Volume (acre-feet) 60 50 40 30 20 10 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 260 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/23/2018 Peak Gage Height (feet) 0.81 0.34 Peak Volume (ac-ft) 0.1 0.0 Hydrograph of peak WY 2018 impoundment event, FCDMC Annual Surface Water Report, Water Year 2018 Page 261 Percent Spillway Capacity 0.0 0.0 East Fork Cave Creek Basin #3B, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 9 6 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 2018 TOTAL 0 MEAN 0 MAX 9 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 262 East Fork Cave Creek Basin #3B, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 263 East Fork Cave Creek Basin #3B, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.2 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.2 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 0.2 0.1 0.1 0.1 0.2 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 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.2 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 0.2 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 0.2 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 0.2 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 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.2 0.2 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.8 0.8 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 2018 MEAN 0.15 MAX 0.81 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2018 Page 264 East Fork Cave Creek Basin #4 – ID #4658 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 STREAMGAGE INSTALLATION DATE 01/18/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 01/18/1994 - Current LENGTH OF AVAILABLE POR DATA DATA 24.70 Years | 9,022 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.30 feet Gage Height 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 2018 Page 265 Location Map (watershed not available) EFCC Basin #4 - water year peaks Volume (acre-feet) 9 8 7 6 5 4 3 2 1 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 266 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 01/09/2018 07/09/2018 07/11/2018 07/30/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 1.10 3.06 1.81 0.88 1.44 0.88 Peak Volume (ac-ft) 0.4 4.2 0.8 0.3 0.6 0.3 Percent Spillway Capacity 0.6 5.8 1.4 0.5 0.9 0.5 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 267 East Fork Cave Creek Basin #4, runoff data Volume, in acre feet, Water Year October 2017 to September 2018 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 4 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 268 East Fork Cave Creek Basin #4, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 4 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 269 East Fork Cave Creek Basin #4, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 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 0.4 0.4 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.3 1.1 0.3 0.3 0.3 0.3 0.3 3.1 1.4 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.30 MAX 3.06 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2018 Page 270 East Fork Cave Creek near 7th Avenue, ID #4668 Site Data LOCATION In Moon Valley Park, near Coral Gable Drive and 7th 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 STREAMGAGE INSTALLATION DATE 05/08/1997 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 05/08/1997 - Current LENGTH OF AVAILABLE POR DATA DATA 21.40 Years | 7,816 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -0.25 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,341.79 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 4,067 cfs | 7.55 feet | 08/02/2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 271 Watershed Map East Fork Cave Creek near 7th Avenue - water year peaks 4,500 Discharge (cfs) 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 272 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 01/10/2018 07/09/2018 07/11/2018 07/31/2018 08/08/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 0.87 2.63 1.99 0.38 2.04 0.67 4.00 Peak Discharge (cfs) 13 729 396 23 419 41 1,685 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=22, HEC-WRC computation (based on 22 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 497 1,170 1,830 2,640 4,000 5,280 8,200 9,400 FEMA FIS 5,500 FCDMC Annual Surface Water Report, Water Year 2018 Page 273 East Fork Cave Creek near 7th Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 20 9 9 46 15 10 2 11 27 17 12 31 13 5 14 15 16 17 18 19 20 21 22 23 77 24 18 25 26 27 28 29 --30 --31 --------15 -------------------------------------------------------------------------------TOTAL 0 0 0 10 0 0 0 0 0 125 147 0 MEAN 0 0 0 0 0 0 0 0 0 4 5 0 MAX 0 0 0 62 0 0 0 0 0 729 1685 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 21 0 0 0 0 0 249 291 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 282 MEAN 1 MAX 1685 MIN 0 AC_FT 560 FCDMC Annual Surface Water Report, Water Year 2018 Page 274 El Mirage Road Drain, ID #5483 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 STREAMGAGE INSTALLATION DATE 02/16/2006 - WY 2006 AVAILABLE PERIOD OF RECORD (POR) 02/16/2006 - Current LENGTH OF AVAILABLE POR DATA 12.62 Years | 4,610 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 275 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 2018 Page 276 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/12/2018 4.99 471 Hydrograph of peak WY 2018 flow event Flood Flow Frequency Flood Flow Frequency N=13, HEC-WRC computation (based on 13 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 84 354 692 1,160 1,990 2,790 50-year 100-year 4,747 6,023 NOTE(1): These results are based on very limited data. Flood Flow Frequency FEMA Flood Insurance Study 2-year 5-year 10-year 2,835 FCDMC Annual Surface Water Report, Water Year 2018 Page 277 20-year El Mirage Road Drain, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 49 13 26 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 75 0 MEAN 0 0 0 0 0 0 0 0 0 0 2 0 MAX 0 0 0 0 0 0 0 0 0 0 471 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 0 149 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 75 MEAN 0 MAX 471 MIN 0 AC_FT 149 FCDMC Annual Surface Water Report, Water Year 2018 Page 278 East Maricopa Floodway at Broadway Road, ID #6573 Site Data LOCATION Located about 1,000 feet south of Broadway Road, east of Higley Road DRAINAGE AREA 11.3 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 STREAMGAGE INSTALLATION DATE 08/10/1989 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 09/03/1990 - Current LENGTH OF AVAILABLE POR DATA 28.08 Years | 10,255 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -3.97 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 279 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 280 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/10/2018 Peak Gage Height (feet) 1.42 3.06 Peak Discharge (cfs) 364 1,620 Hydrograph of peak WY 2018 flow event, 08/10/2018 Due to gage failure, hydrograph for event is unavailable. Flood Flow Frequency Flood Flow Frequency N=28, HEC-WRC computation (based on 28 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 769 1,800 2,730 3,780 5,370 6,720 NOTE(1): These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 281 EMF at Broadway Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 41 10 2 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 43 0 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 0 0 0 0 0 0 364 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 86 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 43 MEAN 0 MAX 364 MIN 0 AC_FT 86 FCDMC Annual Surface Water Report, Water Year 2018 Page 282 East Maricopa Fldwy below Powerline Floodway, ID #6758 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 STREAMGAGE INSTALLATION DATE 04/15/2014 - WY 2014 AVAILABLE PERIOD OF RECORD (POR) 04/15/2014 - Current LENGTH OF AVAILABLE POR DATA 4.46 Years | 1,630 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 283 Watershed Map EMF below Powerline Floodway - water year peaks 4,500 Discharge (cfs) 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2010 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 284 2025 WY2018 Events Date of Peak 08/10/2018 08/23/2018 Peak Gage Height 6.27 1.77 Peak Discharge (cfs) 3,372 339 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 285 EMF below Powerline Floodway, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 1417 11 83 12 13 14 15 16 17 18 19 20 21 22 23 12 24 191 25 108 26 8 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1819 0 MEAN 0 0 0 0 0 0 0 0 0 0 59 0 MAX 0 0 0 0 0 0 0 0 0 0 3372 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 3607 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1819 MEAN 5 MAX 3372 MIN 0 AC_FT 3607 FCDMC Annual Surface Water Report, Water Year 2018 Page 286 East Maricopa Floodway at Queen Creek Road, ID #6583 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 STREAMGAGE INSTALLATION DATE 01/18/1989 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 01/18/1989 - current LENGTH OF AVAILABLE POR DATA 29.70 Years | 10,848 Days DATA GAPS IN POR 10/22/2010 - 01/17/2012 STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION -0.64 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,303.51 feet M.S.L. POINT OF ZERO FLOW -1.6 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,274 cfs | 4.96 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 287 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 288 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/10/2018 08/24/2018 Peak Gage Height (feet) 3.73 1.76 Peak Discharge (cfs) 1,962 510 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Flood Flow Frequency N=30, HEC-WRC computation (based on 30 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 776 1,970 3,040 4,230 5,980 7,410 NOTE(1): These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 289 EMF at Queen Creek Road, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 1050 11 290 12 104 13 55 14 30 15 16 17 18 19 20 21 22 23 24 270 25 435 26 303 27 156 28 74 29 --42 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 2808 0 MEAN 0 0 0 0 0 0 0 0 0 0 91 0 MAX 0 0 0 0 0 0 0 0 0 0 1962 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 5569 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 2808 MEAN 8 MAX 1962 MIN 0 AC_FT 5570 FCDMC Annual Surface Water Report, Water Year 2018 Page 290 East Maricopa Floodway at Arizona Avenue, ID #6598 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 STREAMGAGE INSTALLATION DATE 02/10/1989 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 02/10/1989 - Current LENGTH OF AVAILABLE POR DATA 29.64 Years | 10,825 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -0.15 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,210.50 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,536 cfs | 4.07 feet | 01/11/1993 FCDMC Annual Surface Water Report, Water Year 2018 Page 291 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 292 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/10/2018 08/26/2018 Peak Gage Height (feet) 2.37 0.70 Peak Discharge (cfs) 946 214 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Flood Flow Frequency N=30, HEC-WRC computation (based on 30 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 310 986 1,760 2,790 4,650 6,470 NOTE(1): These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 293 EMF at Arizona Avenue, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 10 584 11 339 12 224 13 271 14 65 15 16 17 18 19 20 21 22 --23 --24 --25 --26 173 27 154 28 85 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1896 0 MEAN 0 0 0 0 0 0 0 0 0 0 61 0 MAX 0 0 0 0 0 0 0 0 0 0 946 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 3761 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1896 MEAN 5 MAX 946 MIN 0 AC_FT 3761 FCDMC Annual Surface Water Report, Water Year 2018 Page 294 Estrella Fan, ID #6893 Site Data LOCATION Located in northwest part of the Estrella Mountains DRAINAGE AREA 1.0 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 STREAMGAGE INSTALLATION DATE 04/30/1993 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 04/30/1993 - Current LENGTH OF AVAILABLE POR DATA 25.42 Years | 9,285 Days DATA GAPS IN POR None 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 1,447.80 feet NAVD 1988 POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 508 cfs | 1.60 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 295 Watershed Map Estrella Fan - water year peaks 600 Discharge (cfs) 500 400 300 200 100 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 296 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff events occurred in Water Year 2018. Flood Flow Frequency Flood Flow Frequency HEC-1 Analysis, 1997 2-year 5-year 10-year 25-year 50-year 100-year 310 860 1,280 1,800 2,250 2,710 FCDMC Annual Surface Water Report, Water Year 2018 Page 297 Estrella Fan, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 298 Flying E Wash, ID #7083 Site Data LOCATION About 1 mile west of Vulture Mine Road on US 60 DRAINAGE AREA 8.5 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 STREAMGAGE INSTALLATION DATE 07/12/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 07/12/1994 - Current LENGTH OF AVAILABLE POR DATA 24.22 Years | 8,847 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,283.10 feet NAVD 1988 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 2018 Page 299 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 300 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff events occurred in Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 266 989 1,970 3,510 6,710 10,400 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 301 Flying E Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 302 Ford Canyon Wash, ID #5428 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 STREAMGAGE INSTALLATION DATE 02/05/2002 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 02/05/2002 - Current LENGTH OF AVAILABLE POR DATA 16.65 Years | 6,082 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.72 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,468.00 feet NAVD 1988 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 2018 Page 303 Watershed Map Ford Canyon Wash - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 304 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) No runoff recorded Hydrograph of peak WY 2018 flow event No runoff recorded during Water Year 2017. Flood Flow Frequency Flood Flow Frequency Based on HEC-1 Analysis, June 2002 2-year 5-year 10-year 25-year 50-year 100-year 200 390 690 1,740 1,875 1,960 FCDMC Annual Surface Water Report, Water Year 2018 Page 305 Ford Canyon Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 8 19 2 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 10 0 0 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 110 0 0 0 1 0 290 1 0 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 20 1 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 11 MEAN 0 MAX 290 MIN 0 AC_FT 22 FCDMC Annual Surface Water Report, Water Year 2018 Page 306 Fourth of July Wash, ID #5043 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 STREAMGAGE INSTALLATION DATE 03/14/2002 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 03/14/2002 - Current LENGTH OF AVAILABLE POR DATA 16.55 Years | 6,045 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,110.00 feet NAVD 1988 POINT OF ZERO FLOW -0.25 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,150 cfs | 4.35 feet | 08/30/2006 FCDMC Annual Surface Water Report, Water Year 2018 Page 307 Watershed Map Fourth of July Wash - water year peaks Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 308 2010 Water Year 2015 2020 WY2018 Events Date of Peak 08/12/2018 08/16/2018 Peak Gage Height (feet) 1.35 1.72 Peak Discharge (cfs) 408 560 Hydrograph of peak WY 2018 flow event, 08/16/2018 Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 781 1,410 1,880 2,360 3,030 3,550 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 309 Fourth of July Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --12 242 13 6 14 --15 --16 37 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 82 0 MEAN 0 0 0 0 0 0 0 0 0 0 3 0 MAX 0 0 0 0 0 0 0 0 0 0 560 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 0 163 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 82 MEAN 0 MAX 560 MIN 0 AC_FT 163 FCDMC Annual Surface Water Report, Water Year 2018 Page 310 Freestone Basin, ID #6608 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 STREAMGAGE INSTALLATION DATE 12/19/1995 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 12/19/1995 - Current LENGTH OF AVAILABLE POR DATA 22.78 Years | 8,322 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.83 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,217.49 feet M.S.L. 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 2018 Page 311 Location Map Freestone Basin - water year peaks Volume (acre-feet) 60 50 40 30 20 10 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 312 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 08/10/2018 6.40 6.8 6.8 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 313 Freestone Basin, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 1 1 7 8 9 1 1 10 3 1 3 11 2 1 12 2 1 13 1 1 14 1 1 15 1 1 1 16 1 1 17 1 1 18 1 1 19 1 1 1 20 1 1 21 1 22 1 1 23 24 25 1 26 1 27 28 29 --1 30 --1 31 ---------------------------------------------------------------------------------------MEAN 0 0 0 1 0 0 0 0 0 0 0 0 MAX 1 1 2 3 2 1 1 1 1 3 7 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 7 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 314 Freestone Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.8 3.8 2.8 2.9 2 2.9 2.9 2.9 2.9 2.9 2.9 3.2 2.9 2.8 3.1 2.9 2.9 3 2.9 2.9 2.9 2.9 2.9 2.9 3.2 2.9 2.8 2.8 2.9 2.9 4 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.0 2.8 2.8 2.9 2.8 5 2.9 2.9 2.9 2.9 2.9 2.9 3.1 2.9 2.8 2.8 3.1 2.8 6 2.9 2.9 2.9 2.9 2.9 2.9 3.2 3.3 2.8 2.8 2.9 2.8 7 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.0 2.8 2.8 2.8 2.8 8 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.0 2.8 3.1 2.8 3.1 9 2.9 2.9 2.9 3.0 2.9 2.9 3.2 2.9 2.8 3.2 2.8 3.0 10 2.9 2.9 2.9 5.1 2.9 2.9 3.3 2.9 2.8 3.1 4.4 2.9 11 2.9 2.9 2.9 4.8 2.9 2.9 3.3 2.9 2.8 3.0 3.0 2.8 12 2.9 2.9 2.9 4.6 2.9 2.9 3.2 2.9 2.8 3.7 2.8 2.8 13 2.9 2.9 2.9 4.4 2.9 2.9 2.9 3.2 2.8 2.9 2.8 2.8 14 2.9 3.4 2.9 4.2 3.1 2.9 2.9 3.0 2.8 2.8 2.8 2.8 15 2.9 3.2 2.9 4.0 3.4 2.9 3.0 2.9 2.8 3.2 2.8 2.8 16 2.9 2.9 2.9 3.9 2.9 2.9 3.2 2.9 2.8 2.8 2.8 3.3 17 2.9 2.9 3.5 3.8 2.9 3.0 3.2 3.0 2.8 2.8 2.8 3.0 18 2.9 2.9 3.0 3.7 3.3 2.9 2.9 2.8 2.8 2.8 3.1 2.8 19 2.9 2.9 2.9 3.6 3.4 3.0 3.1 2.8 2.8 2.8 3.0 3.3 20 2.9 2.9 2.9 3.5 3.0 2.9 3.1 2.8 2.8 2.8 2.9 3.2 21 2.9 2.9 2.9 3.4 2.9 2.9 2.9 2.8 2.8 2.8 2.8 2.8 22 2.9 2.9 2.9 3.3 2.9 2.9 2.9 2.8 2.8 3.3 2.8 2.8 23 2.9 2.9 2.9 3.2 2.9 2.9 3.1 2.8 2.8 3.0 2.8 2.8 24 2.9 3.0 2.9 3.0 2.9 2.9 3.2 2.8 2.9 2.8 2.9 2.8 25 2.9 2.9 2.9 3.2 2.9 3.3 2.9 2.8 2.8 2.8 3.2 2.8 26 2.9 2.9 2.9 3.0 2.9 2.9 3.1 2.8 2.8 2.8 3.5 2.8 27 2.9 2.9 2.9 2.9 2.9 2.9 3.0 2.8 2.8 2.8 2.8 2.8 28 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.8 2.8 2.8 2.8 29 2.9 2.9 2.9 2.9 --2.9 2.9 2.8 2.9 3.2 2.8 2.8 30 3.0 2.9 2.9 2.9 --3.1 2.9 2.8 3.3 3.1 2.8 3.1 31 3.0 --2.9 2.9 --2.9 --2.8 --3.0 2.8 -------------------------------------------------------------------------------MEAN 2.9 2.9 2.9 3.4 2.9 2.9 3.0 2.9 2.9 3.0 3.0 2.9 MAX 3.4 4.0 4.8 5.1 4.6 4.0 4.2 3.8 3.7 5.3 6.4 4.2 MIN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.8 2.8 2.8 2.8 2.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.96 MAX 6.40 MIN 2.83 FCDMC Annual Surface Water Report, Water Year 2018 Page 315 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 6.4 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 STREAMGAGE INSTALLATION DATE 08/16/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 08/16/2016 - Current LENGTH OF AVAILABLE POR DATA 2.12 Years | 776 Days DATA GAPS IN POR None 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 2018 Page 316 Watershed Map Discharge (cfs) Galloway Wash at Galloway Road - water year peaks 2000 1800 1600 1400 1200 1000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 317 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/23/2018 2.52 1,518 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 318 Galloway Wash at Galloway Road, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 24 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 1521 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 47 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 24 MEAN 0 MAX 1521 MIN 0 AC_FT 47 FCDMC Annual Surface Water Report, Water Year 2018 Page 319 Gila River at Olberg Road, ID #0783 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 STREAMGAGE INSTALLATION DATE 04/12/1995 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 04/12/1995 - Current LENGTH OF AVAILABLE POR DATA 23.47 Years | 8,573 Days DATA GAPS IN POR 09/19/2016 – 10/31/2016 STAGE GAGE ELEVATION 0.44 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 320 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 321 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No recorded runoff during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 435 1,530 2,890 4,800 8,370 12,000 FCDMC Annual Surface Water Report, Water Year 2018 Page 322 Gila River at Olberg Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 *USGS maintained a gage at this site prior to October 1, 1998 (09478350) FCDMC Annual Surface Water Report, Water Year 2018 Page 323 Gila River at Maricopa Road, ID #0778 Site Data LOCATION On Maricopa Road (SR 347) about 5 miles north of Maricopa DRAINAGE AREA 20,312 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 STREAMGAGE INSTALLATION DATE 04/09/1995 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 04/09/1995 - Current LENGTH OF AVAILABLE POR DATA 23.48 Years | 8,576 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.36 feet Gage Height CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 8,051 cfs | 3.99 feet | 07/31/2006 FCDMC Annual Surface Water Report, Water Year 2018 Page 324 Watershed for Gila River at Maricopa Road Gila River at Maricopa Road - water year peaks 9,000 Discharge (cfs) 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 325 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) No runoff recorded Hydrograph of peak WY 2018 flow event, There were no runoff events in water year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 326 Gila River at Maricopa Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 34 11 12 13 16 14 2 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 52 0 MEAN 0 0 0 0 0 0 0 0 0 0 2 0 MAX 0 0 0 0 0 0 0 0 0 0 249 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 0 103 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 52 MEAN 0 MAX 249 MIN 0 AC_FT 103 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 2018 Page 327 Gila River at 116th Avenue, ID #6848 Site Data LOCATION Located on the Avondale Boulevard bridge crossing of the Gila River DRAINAGE AREA 43,300 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 STREAMGAGE INSTALLATION DATE 12/16/1998 - WY 1999 AVAILABLE PERIOD OF RECORD (POR) 12/16/1998 - Current LENGTH OF AVAILABLE POR DATA 18.79 Years | 6,864 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 929.74 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 49,394 cfs | 9.15 feet | 02/13/2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 328 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 329 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, There was no recorded runoff during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 330 Gila River at 116th Avenue, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 --57 4 19 --161 5 243 --155 6 100 186 7 137 158 8 155 156 9 214 151 10 100 178 11 130 155 12 246 156 13 145 163 14 132 154 15 17 61 133 16 169 124 17 125 --152 18 43 32 153 19 163 201 272 20 215 174 21 235 185 22 148 169 23 204 189 24 132 164 25 172 160 26 128 162 27 159 166 28 165 170 29 --186 30 ----235 31 ---------------------------------------------------------------------------------------TOTAL 0 17 3740 0 0 0 0 233 0 0 0 4624 MEAN 0 1 121 0 0 0 0 8 0 0 0 154 MAX 0 292 314 0 0 0 0 400 0 0 0 301 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 34 7418 0 0 0 0 462 0 0 0 9172 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 8614 MEAN 24 MAX 400 MIN 0 AC_FT 17086 FCDMC Annual Surface Water Report, Water Year 2018 Page 331 Gila River at Estrella Parkway, ID #6853 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 STREAMGAGE INSTALLATION DATE 12/02/1992 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 12/02/1992 - Current LENGTH OF AVAILABLE POR DATA 25.83 Years | 9,434 Days DATA GAPS IN POR 01/08/1993 - 03/01/1993 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 2018 Page 332 Watershed Map Gila River at Estrella Parkway - water year peaks 80,000 Discharge (cfs) 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 333 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency Flood Flow Frequency From Study of Modified Roosevelt Dam Table 2-4 2-year 5-year 10-year 20-year 50-year 100-year 20,000 50,000 84,000 170,000 217,000 FCDMC Annual Surface Water Report, Water Year 2018 Page 334 Gila River at Estrella Parkway, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 335 Golden Eagle Park Dam, ID #5978 Site Data LOCATION In Golden Eagle Park, near Fountain Hills High School DRAINAGE AREA 7.13 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 STREAMGAGE INSTALLATION DATE 12/12/1996 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 12/12/1996 - Current LENGTH OF AVAILABLE POR 21.80 Years | 7,963 Days DATA GAPS IN POR 05/01/2000 - 03/05/2001 (station was located on inflow wash due to construction) STAGE GAGE ELEVATION 2.56 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,696.75 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 20.26 feet Gage Height TOP OF DAM ELEVATION 31.9 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 336 Watershed Map Volume (acre-feet) Golden Eagle Park Dam - water year peaks 20 18 16 14 12 10 8 6 4 2 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 337 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/09/2018 07/14/2018 08/08/2018 08/10/2018 08/12/2018 08/14/2018 Peak Gage Height (feet) 5.49 6.14 4.67 10.86 11.32 4.82 4.06 Peak Volume (ac-ft) 0.1 0.4 0.0 6.1 7.5 0.0 0.0 Percent Spillway Capacity 0.2 0.4 0.0 6.5 8.3 0.0 0.0 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 338 Golden Eagle Park Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 82 9 --28 10 --54 11 41 12 14 13 14 13 15 15 16 12 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 12 41 206 0 MEAN 0 0 0 0 0 0 0 0 0 1 7 0 MAX 0 0 0 0 0 0 0 0 421 486 889 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 24 81 408 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 259 MEAN 1 MAX 889 MIN 0 AC_FT 514 FCDMC Annual Surface Water Report, Water Year 2018 Page 339 Golden Eagle Park Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 7 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 7 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 340 Golden Eagle Park Dam, stage data Station Number: 5978 Name: Golden Eagle Park Da Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 2 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 3 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 4 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 5 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 6 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 8 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.6 3.0 9 2.7 2.7 --2.7 2.7 2.7 2.7 3.0 3.0 3.2 3.0 3.0 10 2.7 2.7 --2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.5 3.0 11 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.2 3.0 12 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.1 3.0 13 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 14 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.1 3.1 3.0 15 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 16 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.1 3.0 3.0 3.0 17 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 18 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 19 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 20 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 21 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 22 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 23 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 24 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 25 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 26 2.7 2.7 2.7 2.7 2.7 2.7 2.9 3.0 3.0 3.0 3.0 3.0 27 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 3.0 28 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 3.0 29 2.7 2.7 2.7 2.7 --2.7 3.0 3.0 3.0 3.0 3.0 3.0 30 2.7 2.7 2.7 2.7 --2.7 3.0 3.0 3.0 3.0 3.0 3.0 31 2.7 --2.7 2.7 --2.7 --3.0 --3.0 3.0 -------------------------------------------------------------------------------MEAN 2.7 2.7 2.7 2.7 2.7 2.7 2.8 3.0 3.1 3.1 3.1 3.0 MAX 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 5.5 6.1 11.3 3.0 MIN 2.7 2.7 2.7 2.7 2.7 2.7 2.7 3.0 3.0 3.0 3.0 3.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.85 MAX 11.32 MIN 2.70 FCDMC Annual Surface Water Report, Water Year 2018 Page 341 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 STREAMGAGE INSTALLATION DATE 10/06/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/06/2015 - Current LENGTH OF AVAILABLE POR DATA 2.99 Years | 1,091 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.45 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 8.6 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 342 Watershed Map Volume (acre-feet) Verde Lane and 26th Avenue Basin - water year peaks 20 18 16 14 12 10 8 6 4 2 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 343 2020 Water Year 2025 WY2018 Events Date of Peak 01/09/2018 07/09/2018 08/08/2018 08/11/2018 08/23/2018 09/19/2018 Peak Gage Height (feet) 1.78 1.74 1.34 2.19 1.77 1.49 Peak Volume (ac-ft) 5.5 5.3 4.0 6.9 5.4 4.5 Percent Spillway Capacity 14.7 14.3 10.9 18.4 14.6 12.2 Hydrograph of peak WY 2018 impoundment event, 08/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 344 Grand Avenue at 27th Avenue Basin, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 1 1 10 2 2 11 2 3 12 2 3 13 2 2 14 2 1 15 1 16 17 18 19 1 20 1 21 22 23 1 24 3 25 3 26 2 27 1 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 2 0 0 0 0 0 14 19 2 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 3 0 0 0 0 0 3 3 3 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 4 0 0 0 0 0 28 37 4 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 37 MEAN 0 MAX 3 MIN 0 AC_FT 74 FCDMC Annual Surface Water Report, Water Year 2018 Page 345 Grand Avenue at 27th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 1 1 1 10 3 4 11 4 5 12 4 5 13 4 3 14 3 2 15 3 16 2 17 2 18 1 19 2 20 2 21 22 23 1 24 5 25 5 26 3 27 3 28 1 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 1 1 0 MAX 0 0 0 5 0 0 0 0 0 5 7 5 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 7 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 346 Grand Avenue at 27th Avenue Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 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 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 8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 9 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.8 0.6 0.5 10 0.5 0.5 0.5 1.3 0.5 0.5 0.5 0.5 0.5 1.4 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.3 1.8 0.5 12 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.4 1.6 0.5 13 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.2 1.1 0.5 14 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.1 0.8 0.5 15 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.9 0.5 0.5 16 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.5 0.5 17 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.5 0.5 18 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 0.5 19 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.8 20 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.9 21 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 22 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 23 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.5 24 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.7 0.5 25 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.5 0.5 26 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.1 0.5 27 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 1.0 0.5 28 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.5 29 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 30 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 31 0.5 --0.5 0.5 --0.5 --0.5 --0.5 0.5 -------------------------------------------------------------------------------MEAN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.7 0.5 MAX 0.5 0.5 0.5 1.8 0.5 0.5 0.5 0.5 0.5 1.7 2.2 1.5 MIN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.49 MAX 2.19 MIN 0.45 FCDMC Annual Surface Water Report, Water Year 2018 Page 347 Granite Reef Diversion, ID #4568 Site Data LOCATION Located along Bush Highway near Granite Reef Dam DRAINAGE AREA 33.2 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 STREAMGAGE INSTALLATION DATE 07/21/2005 - WY 2005 AVAILABLE PERIOD OF RECORD (POR) 07/21/2005 - Current LENGTH OF POR 13.20 Years | 4,820 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.55 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.0 feet Gage Height POINT OF ZERO FLOW -0.4 feet Gage Height EXTREME FOR PERIOD OF RECORD 770 cfs | 1.78 Feet | 03/07/2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 348 Watershed Map Granite Reef Diversion - water year peaks 900 Discharge (cfs) 800 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 349 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) No recorded runoff Hydrograph of peak WY 2018 flow event, There were no runoff events in water year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 350 Granite Reef Diversion, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 351 Granite Reef Wash, ID #4728 Site Data LOCATION On McDowell Road near Granite Reef Road DRAINAGE AREA 7.2 mi2 STREAM TYPE 1-Barrel 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 STREAMGAGE INSTALLATION DATE 06/26/2007 - WY 2007 AVAILABLE PERIOD OF RECORD (POR) 06/26/2007 - Current LENGTH OF AVAILABLE POR DATA DATA 11.27 Years | 4,115 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.28 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,202.72 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 235 cfs | 7.76 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 352 Watershed Map Granite Reef Wash - water year peaks Discharge (cfs) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 353 2020 WY2018 Events Date of Peak 01/09/2018 08/08/2018 08/10/2018 08/11/2018 08/12/2018 08/21/2018 Peak Gage Height 1.95 2.67 5.44 2.97 5.99 2.72 Peak Discharge (cfs) 10 17 55 20 64 17 Hydrograph of peak WY 2018 flow event, 08/12/2018 Flood Flow Frequency Flood Flow Frequency N=12, HEC-WRC computation (based on 12 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 63 101 131 164 212 253 NOTE(1): These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 354 Granite Reef Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 9 1 10 1 6 11 2 12 9 13 14 15 16 17 18 19 20 21 2 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 1 0 0 0 0 0 0 22 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 10 0 0 0 0 0 0 64 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 3 0 0 0 0 0 0 44 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 24 MEAN 0 MAX 64 MIN 0 AC_FT 47 FCDMC Annual Surface Water Report, Water Year 2018 Page 355 Greene Wash at SR84 – ID #0793 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 STREAMGAGE INSTALLATION DATE 03/23/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 03/23/1994 - Current LENGTH OF AVAILABLE POR DATA 24.53 Years | 8,958 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,295.256 feet NAVD88 EXTREME FOR PERIOD OF RECORD 1,391 cfs | 3.67 feet GH | 08/02/2006 FCDMC Annual Surface Water Report, Water Year 2018 Page 356 Watershed Map Greene Wash at SR84 - water year peaks 1,600 Discharge (cfs) 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 357 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) No runoff recorded Hydrograph of peak WY 2018 flow event, There were no runoff events in water year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 358 Greene Wash at SR84, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 359 Guadalupe Road Channel, ID #6603 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 STREAMGAGE INSTALLATION DATE 08/07/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 08/07/1998 - Current LENGTH OF AVAILABLE POR DATA 20.15 Years | 7,360 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,344.20 feet M.S.L. 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 2018 Page 360 Watershed Map Discharge (cfs) Guadalupe Channel - water year peaks 1,000 900 800 700 600 500 400 300 200 100 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 361 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/10/2018 08/12/2018 08/25/2018 Peak Gage Height (feet) 0.99 2.60 0.88 0.65 Peak Discharge (cfs) 158 809 125 30 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Flood Flow Frequency N=21, HEC-WRC computation (based on 21 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 336 587 778 976 1,250 1,470 NOTE(1): These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 362 Guadalupe Road Channel, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 12 1 10 72 11 12 3 13 14 15 16 17 18 19 20 21 22 23 24 25 1 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 1 0 0 0 12 77 0 MEAN 0 0 0 0 0 0 0 0 0 0 2 0 MAX 0 0 0 0 0 2 0 0 0 158 809 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 3 0 0 0 24 152 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 90 MEAN 0 MAX 809 MIN 0 AC_FT 179 FCDMC Annual Surface Water Report, Water Year 2018 Page 363 Guadalupe FRS, ID #6503 Site Data LOCATION Located west of I-10 and south of Baseline Road DRAINAGE AREA 1.87 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 STREAMGAGE INSTALLATION DATE 06/29/1989 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 06/29/1989 - Current LENGTH OF AVAILABLE POR DATA 29.26 Years | 10,686 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.26 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,251.38 feet NAVD88 PZF (CONTROLLED OUTLET) 0.64 feet Gage Height PZF (UNCONTROLLED OUTLET) 9.64 feet Gage Height SPILLWAY ELEVATION 24.64 feet Gage Height TOP OF DAM ELEVATION 32.14 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 364 Watershed Map Guadalupe FRS - water year peaks Volume (acre-feet) 120 100 80 60 40 20 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 365 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity No impoundment Hydrograph of peak WY 2018 impoundment event There were no recorded impoundments during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 366 Guadalupe FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 367 Guadalupe FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 368 Guadalupe FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.26 MAX 0.31 MIN 0.26 FCDMC Annual Surface Water Report, Water Year 2018 Page 369 Harquahala FRS, ID #5128 Site Data LOCATION Located northeast of I-10 and Salome Highway interchange DRAINAGE AREA 102.3 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 STREAMGAGE INSTALLATION DATE 03/01/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 03/01/1994 - Current LENGTH OF AVAILABLE POR DATA 24.59 Years | 8,980 Days DATA GAPS IN POR None 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 2018 Page 370 Watershed Map Harquahala FRS - water year peaks Volume (acre-feet) 600 500 400 300 200 100 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 371 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 372 Percent Spillway Capacity Harquahala FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 373 Harquahala FRS, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 374 Harquahala FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 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 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 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 7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 8 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 9 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 10 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 11 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 12 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 13 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 14 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 15 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 16 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 17 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 18 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 19 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 20 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 21 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 22 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 23 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 24 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 25 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 26 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 27 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 28 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 29 0.4 0.4 0.4 0.4 --0.4 0.4 0.4 0.4 0.4 0.4 0.4 30 0.4 0.4 0.4 0.4 --0.4 0.4 0.4 0.4 0.4 0.4 0.4 31 0.4 --0.4 0.4 --0.4 --0.4 --0.4 0.4 -------------------------------------------------------------------------------MEAN 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 MAX 0.4 0.4 0.4 0.4 0.4 0.4 0.8 0.4 0.4 0.6 0.4 0.6 MIN 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.38 MAX 0.77 MIN 0.38 FCDMC Annual Surface Water Report, Water Year 2018 Page 375 Hartman Wash, ID #7063 Site Data LOCATION About 3 miles west of Vulture Mine Road on US 60 DRAINAGE AREA 5.4 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 STREAMGAGE INSTALLATION DATE 07/06/1994 - WY 1994 AVAILABLE PERIOD OF RECOD 07/06/1994 - Current LENGTH OF AVAILABLE POR DATA 24.24 Years | 8,853 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.05 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 3 ZERO GAGE HEIGHT ELEVATION 2,459.61 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 2018 Page 376 Watershed Map Hartman Wash - water year peaks 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 377 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/02/2018 08/23/2018 Peak Gage Height (feet) 2.31 0.86 Peak Discharge (cfs) 503 103 Hydrograph of peak WY 2018 flow event, 08/02/2018 Flood Flow Frequency Flood Flow Frequency N=45, HEC-WRC computation (based on 45 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 263 1,070 2,010 3,220 5,210 6,970 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 378 Hartman Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 20 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 --22 --23 2 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 22 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 518 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 43 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 22 MEAN 0 MAX 518 MIN 0 AC_FT 43 FCDMC Annual Surface Water Report, Water Year 2018 Page 379 Hassayampa River at Wagoner, ID #5352 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 STREAMGAGE INSTALLATION DATE 12/19/1983 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 11/27/1991 - Current LENGTH OF AVAILABLE POR DATA 26.84 Years | 9.805 Days DATA GAPS IN POR 09/25/2007 - 05/28/2008 STAGE GAGE ELEVATION 2.18 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 3,741.05 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,068 cfs | 5.00 feet | 01/08/1993 FCDMC Annual Surface Water Report, Water Year 2018 Page 380 Watershed Map Hassayampa River at Wagoner Bridge - water year peaks 6,000 Discharge (cfs) 5,000 4,000 3,000 2,000 1,000 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 381 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No recorded runoff during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=27, HEC-WRC computation (based on 27 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 373 1,700 3,580 6,450 12,200 18,400 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 382 Hassayampa River at Wagoner, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 383 Hassayampa River at Box Canyon, ID #5308 Site Data LOCATION Northeast of Wickenburg DRAINAGE AREA 417 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 STREAMGAGE INSTALLATION DATE 11/17/1983 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 10/16/1991 - Current LENGTH OF AVAILABLE POR DATA 26.96 Years | 9,847 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 3.15 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,238.01 feet NAVD88 POINT OF ZERO FLOW 2.0 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 2018 Page 384 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 1955 FCDMC Annual Surface Water Report, Water Year 2018 Page 385 1985 Water Year 2015 WY2018 Events Date of Peak 07/15/2018 08/25/2018 Peak Gage Height (feet) 4.47 4.42 Peak Discharge (cfs) 331 306 Hydrograph of peak WY 2018 flow event, Flood Flow Frequency Flood Flow Frequency N=68, HEC-WRC computation (based on 68 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 3,160 10,000 17,700 27,800 45,200 61,900 NOTE: These results are based on available data. FCDMC Annual Surface Water Report, Water Year 2018 Page 386 Hassayampa River at Box Canyon, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 8 16 5 17 18 19 20 21 22 1 23 1 3 24 25 13 26 27 28 1 29 --2 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 16 19 0 MEAN 0 0 0 0 0 0 0 0 0 1 1 0 MAX 0 0 0 0 0 0 0 0 0 532 306 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 31 37 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 34 MEAN 0 MAX 532 MIN 0 AC_FT 68 FCDMC Annual Surface Water Report, Water Year 2018 Page 387 Hassayampa River at US60, ID #5228 Site Data LOCATION US 60 crossing of the Hassayampa River DRAINAGE AREA 711 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 STREAMGAGE INSTALLATION DATE 03/14/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 03/14/1994 - 10/01/2010 LENGTH OF AVAILABLE POR DATA 24.55 Years | 8,967 Days DATA GAPS IN POR 06/26/2009 - 04/13/2010 STAGE GAGE ELEVATION 0.60 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,034.85 feet NAVD 1988 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 2018 Page 388 Watershed Map Hassayampa River at US60 - water year peaks Discharge (cfs) 25,000 20,000 15,000 10,000 5,000 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 389 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/16/2018 07/29/2018 08/15/2018 08/16/2018 08/17/2018 08/22/2018 08/25/2018 Peak Gage Height (feet) 1.47 0.90 1.40 1.67 1.45 2.12 2.54 2.07 Peak Discharge (cfs) 935 121 792 1,319 893 2,460 3,986 2,318 Hydrograph of peak WY 2018 flow event, 08/22/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 2,960 10,600 18,800 28,600 43,900 56,800 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 390 Hassayampa River at US60, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 56 13 14 23 15 144 16 2 129 17 143 18 60 19 20 21 22 122 23 415 24 25 241 26 27 28 29 --42 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 100 1277 0 MEAN 0 0 0 0 0 0 0 0 0 3 41 0 MAX 0 0 0 0 0 0 0 0 0 935 3986 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 198 2533 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1377 MEAN 4 MAX 3986 MIN 0 AC_FT 2730 FCDMC Annual Surface Water Report, Water Year 2018 Page 391 Hassayampa River near Morristown, ID #5223 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 STREAMGAGE INSTALLATION DATE 05/07/1996 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 05/07/1996 - Current LENGTH OF AVAILABLE POR DATA 22.40 Years | 8,182 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 7.25 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,832.62 feet NAVD88 POINT OF ZERO FLOW 8.0 feet Gage Height 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 2018 Page 392 Watershed Map Hassayampa River near Morristown - water year peaks 18,000 Discharge (cfs) 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 2018 Page 393 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/17/2018 08/23/2018 08/25/2018 Peak Gage Height (feet) 7.75 8.36 8.08 Peak Discharge (cfs) 125 442 272 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=65, HEC-WRC computation (based on 65 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 2,970 9,370 15,200 21,600 30,200 36,700 NOTE: These results are based on available data. FCDMC Annual Surface Water Report, Water Year 2018 Page 394 Hassayampa River near Morristown, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --13 18 --3 19 61 20 21 22 23 39 24 25 24 26 44 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 64 0 0 120 0 MEAN 0 0 0 0 0 0 0 2 0 0 4 0 MAX 0 0 0 0 0 0 0 1037 0 0 442 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 128 0 0 237 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 184 MEAN 1 MAX 1037 MIN 0 AC_FT 365 FCDMC Annual Surface Water Report, Water Year 2018 Page 395 Hassayampa River at I-10, ID #5283 Site Data LOCATION Located on the eastbound I-10 bridge DRAINAGE AREA 1,450 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 STREAMGAGE INSTALLATION DATE 11/09/1994 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 11/09/1994 - Current LENGTH OF AVAILABLE POR DATA 23.89 Years | 8,727 Days DATA GAPS IN POR 02/15/2011 - 01/30/2012 STAGE GAGE ELEVATION 2.402 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 3 ZERO GAGE HEIGHT ELEVATION 1,018.722 feet NAVD 1988 POINT OF ZERO FLOW 1.9 feet Gage Height EXTREME FOR PERIOD OF RECORD 27,000 cfs | 7.05 feet | 10/27/2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 396 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 397 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff events recorded in Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 838 3,840 8,020 14,300 26,700 39,600 NOTE(1): These results are based on very limited data. NOTE(2): FEMA 100-year discharge is 75,164 cfs FCDMC Annual Surface Water Report, Water Year 2018 Page 398 Hassayampa River at I-10, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 399 Hesperus Dam, ID #5993 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 STREAMGAGE INSTALLATION DATE 12/18/1996 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 12/18/1996 - Current LENGTH OF AVAILABLE POR DATA 21.79 Years | 7,957 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.03 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,855.61 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 2018 Page 400 Watershed Map Hesperus Dam - water year peaks 7.0 Volume (acre-feet) 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 401 2005 2010 2015 2020 WY2018 Events Date of Peak 07/14/2018 08/08/2018 08/14/2018 Peak Gage Height (feet) 4.16 9.25 1.52 Peak Volume (ac-ft) 0.5 6.0 0.1 Percent Spillway Capacity 0.2 2.2 0.0 Hydrograph of peak WY 2018 impoundment event, 08/08/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 402 Hesperus Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 12 9 10 11 12 13 14 4 1 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 4 12 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 107 181 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 8 25 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 16 MEAN 0 MAX 181 MIN 0 AC_FT 33 FCDMC Annual Surface Water Report, Water Year 2018 Page 403 Hesperus Dam, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 6 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 6 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 404 Hesperus Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 3 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.2 0.8 9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 10 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 11 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 12 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 13 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 14 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.8 0.8 15 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 16 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 17 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 18 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 19 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 20 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 21 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 22 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 23 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 24 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 25 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 26 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 27 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 28 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 29 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 30 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 31 0.8 --0.8 0.8 --0.8 --0.8 --0.8 0.8 -------------------------------------------------------------------------------MEAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 MAX 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4.2 9.2 0.8 MIN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.79 MAX 9.25 MIN 0.79 FCDMC Annual Surface Water Report, Water Year 2018 Page 405 Indian Bend Wash at Sweetwater Avenue – ID #4643 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 STREAMGAGE INSTALLATION DATE 12/27/1990 - WY 1991 AVAILABLE PERIOD OF RECORD (POR) 03/27/1992 - Current LENGTH OF AVAILABLE POR DATA DATA 26.51 Years | 9,684 Days DATA GAPS IN POR 04/27/1997 - 11/22/1998 STAGE GAGE ELEVATION 0.00 feet Gage Height 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 2018 Page 406 Watershed Map Indian Bend Wash at Sweetwater Avenue - water year peaks Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 407 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 01/09/2018 07/09/2018 07/11/2018 07/30/2018 08/08/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 0.97 1.57 1.18 1.42 1.08 1.27 3.38 Peak Discharge (cfs) 69 160 98 135 84 111 672 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=27, HEC-WRC computation (based on 27 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 432 871 1,240 1,660 2,280 2,800 3,500 6,000 FEMA FIS, Flood Flow Frequency 2,000 NOTE: Results for the HEC-WRC analysis are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 408 Indian Bend Wash at Sweetwater Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 3 9 --3 10 10 --5 1 11 5 15 12 4 13 14 15 16 17 18 19 20 21 22 23 48 24 8 25 26 27 28 29 --30 --16 31 --------4 -------------------------------------------------------------------------------TOTAL 0 0 0 8 0 0 0 0 0 37 74 0 MEAN 0 0 0 0 0 0 0 0 0 1 2 0 MAX 0 0 0 69 0 0 0 0 0 160 672 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 15 0 0 0 0 0 74 147 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 119 MEAN 0 MAX 672 MIN 0 AC_FT 236 FCDMC Annual Surface Water Report, Water Year 2018 Page 409 Indian Bend Wash at Shea Boulevard, ID #4693 Site Data LOCATION Near 52nd Street and Shea Boulevard DRAINAGE AREA 24.6 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 STREAMGAGE INSTALLATION DATE 06/09/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 06/09/1998 - Current LENGTH OF AVAILABLE POR DATA DATA 20.31 Years | 7,419 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.35 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,344.26 feet NAVD 1988 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 2018 Page 410 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 411 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 01/09/2018 02/14/2018 02/28/2018 07/09/2018 07/11/2018 07/30/2018 08/09/2018 08/10/2018 08/23/2018 09/19/2018 Peak Gage Height (feet) 1.17 0.85 0.94 1.47 1.49 1.47 0.89 1.89 2.41 0.57 Peak Discharge (cfs) 167 53 83 308 319 308 65 602 1,134 25 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency Flood Flow Frequency N=30, HEC-WRC computation (based on 30 years of data, USGS and FCDMC data) 2-year 5-year 10-year 20-year 50-year 100-year 1,160 2,330 3,320 4,500 6,360 8,030 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 412 Inidan Bend Wash at Shea Boulevard, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 3 4 5 6 7 8 4 9 --10 50 39 10 --87 68 14 11 5 34 189 12 101 18 13 18 14 11 15 4 16 17 42 18 18 19 3 20 21 22 23 119 24 122 25 2 26 27 28 17 29 --30 --22 31 --------74 -------------------------------------------------------------------------------TOTAL 0 0 61 102 32 0 0 0 0 366 516 3 MEAN 0 0 2 3 1 0 0 0 0 12 17 0 MAX 0 0 116 167 83 0 0 0 0 319 1134 25 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 120 202 63 0 0 0 0 725 1023 5 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1078 MEAN 3 MAX 1134 MIN 0 AC_FT 2139 FCDMC Annual Surface Water Report, Water Year 2018 Page 413 Indian Bend Wash near Indian Bend Road – ID #4613 Site Data LOCATION About 1/4 mile south of Indian Bend Road DRAINAGE AREA 88 mi2 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 STREAMGAGE INSTALLATION DATE 09/28/1983 - WY 1983 AVAILABLE PERIOD OF RECORD (POR) 03/27/1992 - Current LENGTH OF AVAILABLE POR DATA 26.51 Years | 9,684 Days DATA GAPS IN POR 09/28/1983 - 03/27/1992 | 07/07/1999 - 01/25/2000 STAGE GAGE ELEVATION -0.15 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,267.18 feet Gage NAVD 1988 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 2018 Page 414 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 415 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/09/2018 07/12/2018 08/08/2018 08/09/2018 08/10/2018 08/11/2018 08/12/2018 Peak Gage Height (feet) 0.77 0.57 0.69 2.84 1.66 1.54 4.41 3.26 Peak Discharge (cfs) 37 19 29 504 146 126 1,500 696 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=27, HEC-WRC computation (based on 27 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 882 2,360 4,040 6,370 10,700 15,300 FCDMC Annual Surface Water Report, Water Year 2018 Page 416 Indian Bend Wash near Indian Bend Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 48 9 --3 55 10 --1 38 11 264 12 8 125 13 9 51 14 20 15 13 16 4 11 17 12 18 6 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 4 20 642 0 MEAN 0 0 0 0 0 0 0 0 0 1 21 0 MAX 0 0 0 0 0 0 0 0 37 29 1500 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 9 39 1274 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 666 MEAN 2 MAX 1500 MIN 0 AC_FT 1322 FCDMC Annual Surface Water Report, Water Year 2018 Page 417 Indian Bend Wash at McDonald Drive – ID #4628 Site Data LOCATION On McDonald Drive west of Hayden Road DRAINAGE AREA 88 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 STREAMGAGE INSTALLATION DATE 11/24/1997 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 11/24/1997 - Current LENGTH OF AVAILABLE POR DATA DATA 20.85 Years | 7,616 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -1.90 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,261.90 feet NAVD 1988 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 2018 Page 418 Watershed Map Indian Bend Wash at McDonald Drive - water year peaks 4,000 Discharge (cfs) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 419 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/10/2018 07/13/2018 08/08/2018 08/10/2018 08/11/2018 08/12/2018 Peak Gage Height (feet) -0.19 -0.86 -0.68 1.96 0.56 3.70 2.21 Peak Discharge (cfs) 100 17 20 1,417 422 3,110 1,627 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=21, HEC-WRC computation (based on 21 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 920 1,880 2,740 3,760 5,400 6,880 FCDMC Annual Surface Water Report, Water Year 2018 Page 420 Indian Bend Wash at McDonald Drive, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 113 9 226 10 --8 107 11 1 607 12 2 297 13 16 135 14 3 23 15 19 16 14 18 17 2 19 18 17 19 6 20 1 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 5 0 0 0 0 0 0 15 31 1586 0 MEAN 0 0 0 0 0 0 0 0 1 1 51 0 MAX 0 1 0 0 0 0 0 0 100 20 3110 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 9 0 0 0 0 0 0 31 61 3145 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1637 MEAN 4 MAX 3110 MIN 0 AC_FT 3246 FCDMC Annual Surface Water Report, Water Year 2018 Page 421 Indian Bend Wash at Indian School Road – ID #4618 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 STREAMGAGE INSTALLATION DATE 11/25/1997 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 11/25/1997 - Current LENGTH OF AVAILABLE POR DATA 20.85 Years | 7,615 Days DATA GAPS IN POR 11/30/2009 - 02/16/2010 STAGE GAGE ELEVATION 0.72 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,233.19 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 3,887 cfs | 5.50 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 422 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 423 2005 2010 2015 2020 WY2018 Events Date of Peak 06/16/2018 07/10/2018 08/08/2018 08/10/2018 08/11/2018 08/12/2018 Peak Gage Height (feet) 1.29 0.91 3.38 2.19 5.33 3.56 Peak Discharge (cfs) 165 76 1,393 523 3,675 1,573 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=21, HEC-WRC computation (based on 21 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 776 1,770 2,680 3,740 5,410 6,870 FCDMC Annual Surface Water Report, Water Year 2018 Page 424 Indian Bend Wash at Indian School Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 96 9 289 10 23 141 11 2 688 12 3 247 13 3 125 14 3 15 3 16 11 3 17 3 18 3 1 19 3 20 3 21 3 22 2 23 3 24 2 25 3 26 2 27 3 28 3 29 --3 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 11 80 1586 1 MEAN 0 0 0 0 0 0 0 0 0 3 51 0 MAX 0 0 0 0 0 0 0 0 165 76 3675 3 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 23 159 3146 2 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1678 MEAN 5 MAX 3675 MIN 0 AC_FT 3329 FCDMC Annual Surface Water Report, Water Year 2018 Page 425 Indian Bend Wash near McKellips Road, ID #4603 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 STREAMGAGE INSTALLATION DATE 05/21/1985 - WY 1985 AVAILABLE PERIOD OF RECORD (POR) 11/10/1987 - Current LENGTH OF AVAILABLE POR DATA 30.89 Years | 11,283 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,173.99 feet Gage NAVD 1988 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 2018 Page 426 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 427 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/09/2018 08/11/2018 08/12/2018 Peak Gage Height (feet) 2.01 5.66 3.83 Peak Discharge (cfs) 508 4,054 1,940 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=31, HEC-WRC computation (based on 31 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,010 2,760 4,490 6,660 10,300 13,800 FCDMC Annual Surface Water Report, Water Year 2018 Page 428 Indian Bend Wash near McKellips Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --165 10 --118 11 627 12 147 13 274 14 18 15 2 16 1 17 18 19 20 21 22 23 --24 1 25 6 26 1 27 28 29 --30 ----31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 1 1361 0 MEAN 0 0 0 0 0 0 0 0 0 0 44 0 MAX 0 0 0 0 0 0 0 0 0 0 4054 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 1 2700 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1362 MEAN 4 MAX 4054 MIN 0 AC_FT 2701 FCDMC Annual Surface Water Report, Water Year 2018 Page 429 Indian Bend Wash Interceptor Channel – ID #4623 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 STREAMGAGE INSTALLATION DATE 04/21/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 04/21/1994 - Current LENGTH OF AVAILABLE POR DATA 24.45 Years | 8,929 Days DATA GAPS IN POR 06/16/1999 - 01/11/2000 STAGE GAGE ELEVATION 0.00 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,266.47 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,542 cfs | 5.78 feet | 08/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 430 Watershed Map Indian Bend Wash Interceptor Channel - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 431 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/08/2018 08/09/2018 08/11/2018 08/12/2018 Peak Gage Height (feet) 2.24 1.47 5.78 2.46 Peak Discharge (cfs) 221 109 1,542 260 Hydrograph of peak WY 2018 flow event, 08/11/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 53 307 744 1,520 3,330 5,550 FCDMC Annual Surface Water Report, Water Year 2018 Page 432 Indian Bend Wash Interceptor Channel, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 23 9 15 10 4 11 161 12 39 13 5 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 0 248 0 MEAN 0 0 0 0 0 0 0 0 0 0 8 0 MAX 0 0 0 0 0 0 0 0 0 0 1542 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 0 491 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 248 MEAN 1 MAX 1542 MIN 0 AC_FT 491 FCDMC Annual Surface Water Report, Water Year 2018 Page 433 Jackrabbit Wash, ID #5218 Site Data LOCATION Located near the intersection of Vulture Mine and Wickenburg Roads DRAINAGE AREA 120 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 STREAMGAGE INSTALLATION DATE 10/31/2000 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 10/31/2000 - Current LENGTH OF AVAILABLE POR DATA 17.92 Years | 6,544 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.30 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,686.80 feet NAVD 1988 POINT OF ZERO FLOW 0.7 feet Gage Height EXTREME FOR PERIOD OF RECORD 7,974 cfs | 6.18 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 2018 Page 434 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 435 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/16/2018 07/17/2018 Peak Gage Height (feet) 3.46 2.88 2.46 Peak Discharge (cfs) 1,162 590 367 Hydrograph of peak WY 2018 flow event, 07/12/2018 Flood Flow Frequency Flood Flow Frequency N=45, HEC-WRC computation (based on 45 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,030 4,700 9,580 16,600 29,300 41,900 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 436 Jackrabbit Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 14 12 177 13 14 15 16 48 17 7 18 12 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 12 0 246 0 0 MEAN 0 0 0 0 0 0 0 0 0 8 0 0 MAX 0 0 0 0 0 0 0 451 0 1162 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 24 0 489 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 258 MEAN 1 MAX 1162 MIN 0 AC_FT 513 FCDMC Annual Surface Water Report, Water Year 2018 Page 437 Lake Margherite – ID #4678 Site Data LOCATION On Hayden Road about 1/4 mile south of Via Linda DRAINAGE AREA 4.91 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 STREAMGAGE INSTALLATION DATE 11/24/1997 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 11/24/1997 - Current LENGTH OF AVAILABLE POR DATA DATA 20.85 Years | 7,616 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.80 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,320.65 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 286 cfs | 2.03 feet | 08/02/2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 438 Watershed Map Lake Margherite - water year peaks 350 Discharge (cfs) 300 250 200 150 100 50 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 439 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/08/2018 1.10 123 Hydrograph of peak WY 2018 flow event, 07/16/2017 Flood Flow Frequency Unavailable at this time. FCDMC Annual Surface Water Report, Water Year 2018 Page 440 Lake Margherite, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 4 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 4 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 123 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 9 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 4 MEAN 0 MAX 123 MIN 0 AC_FT 9 FCDMC Annual Surface Water Report, Water Year 2018 Page 441 Laveen Basin, ID #4578 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 STREAMGAGE INSTALLATION DATE 11/07/2006 - WY 2007 AVAILABLE PERIOD OF RECORD (POR) 11/07/2006 - Current LENGTH OF AVAILABLE POR DATA 11.90 Years | 4,346 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.20 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,003.12 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 20.0 feet Gage Height TOP OF BASIN ELEVATION 21.2 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 442 Watershed Map Laveen Basin - water year peaks Volume (acre-feet) 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 443 2020 WY2018 Events Date of Peak 01/10/2018 02/14/2018 07/09/2018 08/12/2018 09/19/2018 Peak Gage Height (feet) 0.97 1.25 7.77 3.21 1.62 Peak Volume (ac-ft) 0.1 0.2 22.9 5.1 0.4 Percent Spillway Capacity 0.1 0.2 18.2 4.0 0.4 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 444 Laveen Basin, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 3 3 4 5 6 7 8 9 3 10 12 11 12 9 12 12 10 13 12 10 14 12 8 15 12 7 16 12 7 17 12 6 18 12 6 19 12 4 20 12 2 21 12 3 22 12 7 23 12 7 24 12 7 25 11 6 26 11 6 27 10 6 28 10 6 29 --10 2 30 --9 31 --------9 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 253 131 0 MEAN 0 0 0 0 0 0 0 0 0 8 4 0 MAX 0 0 0 0 0 0 0 0 0 12 10 2 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 1 503 259 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 385 MEAN 1 MAX 12 MIN 0 AC_FT 763 FCDMC Annual Surface Water Report, Water Year 2018 Page 445 Laveen Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 2 1 3 4 5 6 7 8 9 4 10 20 11 18 4 12 18 5 13 16 5 14 15 3 15 13 2 16 12 1 17 11 1 18 10 1 19 10 20 9 21 8 22 8 1 23 7 1 24 6 1 25 6 1 26 6 1 27 5 1 28 5 1 29 --4 30 --4 31 --------4 -------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 7 1 0 MAX 0 0 0 0 0 0 0 0 0 23 5 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 23 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 446 Laveen Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 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 1.1 0.2 0.2 0.2 0.2 2.7 0.2 2 0.2 0.2 0.2 0.2 0.2 1.0 0.2 0.2 0.2 0.2 1.3 0.2 3 0.2 0.2 0.2 0.2 0.2 0.9 0.2 0.2 0.5 0.2 0.6 0.2 4 0.2 0.2 0.2 0.2 0.2 0.9 0.2 0.2 1.0 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.8 0.2 0.2 1.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.8 0.2 0.2 1.4 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.7 0.2 0.2 1.3 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.6 0.2 0.2 1.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.1 1.8 0.2 0.2 10 0.2 0.2 0.2 0.9 0.2 0.2 0.2 0.2 1.1 7.1 0.2 0.3 11 0.2 0.2 0.2 0.9 0.2 0.2 0.2 0.2 1.1 6.6 2.9 0.4 12 0.2 0.2 0.2 0.8 0.2 0.2 0.2 0.2 1.0 6.7 3.2 0.3 13 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 0.4 6.3 3.1 0.2 14 0.2 0.2 0.2 0.2 0.5 0.2 0.2 0.2 0.2 5.9 2.5 0.2 15 0.2 0.2 0.2 0.2 1.2 0.2 0.2 0.2 0.2 5.6 2.1 0.2 16 0.2 0.2 0.2 0.2 1.1 0.2 0.2 0.2 0.2 5.3 2.0 0.2 17 0.2 0.2 0.2 0.2 1.0 0.2 0.2 0.2 0.2 5.0 1.9 0.2 18 0.2 0.2 0.2 0.2 0.9 0.2 0.2 0.2 0.2 4.8 1.8 0.2 19 0.2 0.2 0.2 0.2 0.9 0.2 0.2 0.2 0.2 4.5 1.7 0.6 20 0.2 0.2 0.2 0.2 0.8 0.2 0.2 0.2 0.2 4.3 1.6 1.1 21 0.2 0.2 0.2 0.2 0.8 0.2 0.2 0.2 0.2 4.1 1.7 1.1 22 0.2 0.2 0.2 0.2 0.7 0.2 0.2 0.2 0.2 4.0 2.1 1.1 23 0.2 0.2 0.2 0.2 0.7 0.2 0.2 0.2 0.2 3.8 2.0 1.0 24 0.2 0.2 0.2 0.2 0.7 0.2 0.2 0.2 0.2 3.6 2.0 1.0 25 0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 3.5 1.9 0.9 26 0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 3.3 1.9 0.9 27 0.2 0.2 0.2 0.2 0.6 0.2 0.2 0.2 0.2 3.2 1.9 0.9 28 0.2 0.2 0.2 0.2 1.1 0.2 0.2 0.2 0.2 3.1 1.8 0.8 29 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 3.0 1.2 0.8 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 2.9 0.4 0.8 31 0.2 --0.2 0.2 --0.2 --0.2 --2.9 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.3 0.5 0.4 0.2 0.2 0.5 3.3 1.5 0.5 MAX 0.2 0.2 0.2 1.0 1.2 1.1 0.2 0.2 1.4 7.8 3.2 1.6 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 2018 MEAN 0.67 MAX 7.77 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 447 Magma FRS, ID #6718 Site Data LOCATION Located east of Hunt Highway along Arizona Farms Road DRAINAGE AREA 20.6 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 STREAMGAGE INSTALLATION DATE 11/15/2007 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 11/15/2007 - Current Day LENGTH OF AVAILABLE POR RECORD 10.88 Years | 3,973 Days DATA GAPS IN POR 04/12/2012 - 11/03/2013 STAGE GAGE ELEVATION 1,601.30 feet NAVD 1988 STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,601.00 feet NAVD 1988 POINT OF ZERO FLOW 1,601.50 feet NAVD 1988 SPILLWAY ELEVATION 1,623.20 feet NAVD 1988 TOP OF DAM ELEVATION 1,628.30 feet NAVD 1988 NORMAL DRAWDOWN RATE -0.25 feet per hour FCDMC Annual Surface Water Report, Water Year 2018 Page 448 Watershed Map Magma FRS - water year peaks Volume (acre-feet) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 449 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 06/16/2018 4.46 21.4 0.5 Hydrograph of peak WY 2018 impoundment event, 06/16/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 450 Magma FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 14 17 1 18 19 20 21 22 23 24 25 26 27 --28 --29 ----30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 15 0 0 0 MEAN 0 0 0 0 0 0 0 0 1 0 0 0 MAX 0 0 0 0 0 0 0 0 36 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 31 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 15 MEAN 0 MAX 36 MIN 0 AC_FT 31 FCDMC Annual Surface Water Report, Water Year 2018 Page 451 Magma FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 5 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 21 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 21 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 452 Magma FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 3 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 10 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 11 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 12 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 13 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 14 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 15 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 16 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.3 0.8 0.8 0.8 17 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.3 0.8 0.8 0.8 18 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.8 0.8 0.8 19 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 20 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 21 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 22 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 23 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 24 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 25 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 26 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 27 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 28 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 --0.8 0.8 29 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 --0.8 0.8 30 0.8 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 0.8 0.8 0.8 31 0.8 --0.8 0.8 --0.8 --0.8 --0.8 0.8 -------------------------------------------------------------------------------MEAN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.8 0.8 0.8 MAX 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 4.5 0.8 0.8 0.8 MIN 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.81 MAX 4.46 MIN 0.80 FCDMC Annual Surface Water Report, Water Year 2018 Page 453 Martinez Creek, ID #7013 Site Data LOCATION About a mile northwest of the Scenic Loop Road and US 93 intersection DRAINAGE AREA 105 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 STREAMGAGE INSTALLATION DATE 11/23/1994 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 11/23/1994 - Current LENGTH OF AVAILABLE POR DATA 23.85 Years | 8,713 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.80 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,305.81 feet NAVD 1988 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 2018 Page 454 Watershed Map Martinez Creek - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 455 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/12/2018 08/14/2018 08/17/2018 08/22/2018 Peak Gage Height (feet) 3.15 3.45 4.70 5.05 Peak Discharge (cfs) 191 281 1,442 1,749 Hydrograph of peak WY 2018 flow event, 08/22/2018 Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,780 6,300 11,500 18,300 30,000 41,000 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 456 Martinez Creek, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 27 4 56 5 84 6 84 7 84 8 57 9 28 10 57 11 57 12 5 13 54 14 57 5 15 57 16 84 17 57 15 18 56 19 84 20 57 21 28 22 54 56 23 56 24 57 25 84 26 84 27 57 28 85 29 --111 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 1654 0 5 76 0 MEAN 0 0 0 0 0 0 0 53 0 0 2 0 MAX 0 0 0 0 0 0 0 114 0 191 1906 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 3281 0 9 150 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1735 MEAN 5 MAX 1906 MIN 0 AC_FT 3441 FCDMC Annual Surface Water Report, Water Year 2018 Page 457 McDowell Mountain Road, ID #5923 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 STREAMGAGE INSTALLATION DATE 05/18/2004 - WY 2004 AVAILABLE PERIOD OF RECORD (POR) 05/18/2004 - Current LENGTH OF AVAILABLE POR DATA 14.37 Years | 5,249 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW -0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 652 cfs | 1.77 feet | 07/23/2007 FCDMC Annual Surface Water Report, Water Year 2018 Page 458 Watershed Map McDowell Mountain Road - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 459 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/08/2018 0.80 140 Hydrograph of peak WY 2018 flow event, 08/08/2018 Flood Flow Frequency Flood Flow Frequency N=15, HEC-WRC computation (based on 15 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 42 142 266 443 783 1,140 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 460 McDowell Mountain Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 140 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 2 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 140 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2018 Page 461 McMicken Dam at Bell Road, ID #5443 Site Data LOCATION Located on the south side of McMicken Dam at Bell Road DRAINAGE AREA 247 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 STREAMGAGE INSTALLATION DATE 03/04/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 03/04/2009 - Current LENGTH OF AVAILABLE POR DATA 9.58 Years | 3,498 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,335.68 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 784 cfs | 5.80 feet GH | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 462 Watershed Map McMicken Dam at Bell Road - water year peaks 900 Discharge (cfs) 800 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 463 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) No runoff recorded Hydrograph of peak WY 2018 flow event There was no runoff recorded in Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 464 McMicken Dam at Bell Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 465 McMicken Dam, ID #5448 Site Data LOCATION Gage is located about 3 miles north of Bell Road DRAINAGE AREA 257.9 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 STREAMGAGE INSTALLATION DATE 03/20/1983 - WY 1983 AVAILABLE PERIOD OF RECORD (POR) 02/18/1988 - Current LENGTH OF AVAILABLE POR DATA 30.62 Years | 11,183 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.60 feet Gage Height STAFF GAGES 3 ZERO GAGE HEIGHT ELEVATION 1,336.00 feet NAVD 1988 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 2018 Page 466 Watershed Map McMicken Dam - water year peaks Volume (acre-feet) 3,000 2,500 2,000 1,500 1,000 500 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 467 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No impoundments Hydrograph of peak WY 2018 impoundment event There were no impoundments recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 468 Percent Spillway Capacity McMicken Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 469 McMicken Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 470 McMicken Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 2 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 3 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 4 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 5 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 7 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 8 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 9 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 10 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 11 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 12 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 13 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 14 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 15 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 16 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 17 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 18 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 19 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 20 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 21 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 22 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 23 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 24 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 25 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 26 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 27 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 28 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 29 1.6 1.6 1.6 1.6 --1.6 1.6 1.6 1.6 1.6 1.6 1.6 30 1.6 1.6 1.6 1.6 --1.6 1.6 1.6 1.6 1.6 1.6 1.6 31 1.6 --1.6 1.6 --1.6 --1.6 --1.6 1.6 -------------------------------------------------------------------------------MEAN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 MAX 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 MIN 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.60 MAX 1.60 MIN 1.60 FCDMC Annual Surface Water Report, Water Year 2018 Page 471 McMicken Floodway, ID #5438 Site Data LOCATION Near the intersection of 163rd and Grand Avenues DRAINAGE AREA 305 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 STREAMGAGE INSTALLATION DATE 05/19/1992 - WY 1992 AVAILABLE PERIOD OF RECORD (POR) 05/19/1992 - Current LENGTH OF AVAILABLE POR DATA 26.37 Years | 9,631 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,325.07 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,110 cfs | 4.98 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 472 Watershed Map McMicken Floodway - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 473 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/02/2018 08/10/2018 08/11/2018 Peak Gage Height 1.15 0.75 0.60 Peak Discharge (cfs) 59 29 21 Hydrograph of peak WY 2018 flow event, 08/02/2018 Flood Flow Frequency Flood Flow Frequency N=27, HEC-WRC computation (based on 27 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 45 158 290 468 780 1,080 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 474 McMicken Floodway, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 8 3 6 4 5 6 7 8 9 2 10 6 11 7 12 13 14 15 16 17 18 1 19 10 20 21 22 23 24 25 3 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 11 0 0 33 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 52 0 0 59 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 21 0 0 65 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 43 MEAN 0 MAX 59 MIN 0 AC_FT 86 FCDMC Annual Surface Water Report, Water Year 2018 Page 475 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 STREAMGAGE INSTALLATION DATE 09/10/2015 - WY 2015 AVAILABLE PERIOD OF RECORD (POR) 09/10/2015 - Current LENGTH OF AVAILABLE POR RECORD 3.06 Years | 1,117 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.00 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 28.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 476 Watershed Map Volume (acre-feet) Mineral Canyon Basin - water year peaks 100 90 80 70 60 50 40 30 20 10 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 477 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No impoundments recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 478 Percent Spillway Capacity Mineral Canyon Basin, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 479 Mineral Canyon Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 --7 --8 --9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 1 0 0 0 0 0 1 0 0 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 480 Mineral Canyon Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 4 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 6 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 7 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 8 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 9 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 10 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 11 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 12 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 13 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 14 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 15 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 16 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 17 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 18 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 19 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 20 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 21 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 22 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 23 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 24 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 25 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 26 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 27 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 28 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 29 2.0 2.0 2.0 2.0 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 30 2.0 2.0 2.0 2.0 --2.0 2.0 2.0 2.0 2.0 2.0 2.0 31 2.0 --2.0 2.0 --2.0 --2.0 --2.0 2.0 -------------------------------------------------------------------------------MEAN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 MAX 2.0 2.1 2.0 2.0 2.0 2.0 2.0 2.1 2.0 2.0 2.0 2.0 MIN 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.00 MAX 2.10 MIN 2.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 481 New River Fire, ID #5638 Site Data LOCATION North of Table Mesa Road about 4 miles east of I-17 DRAINAGE AREA 62 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 STREAMGAGE INSTALLATION DATE 07/18/2005 - WY 2005 AVAILABLE PERIOD OF RECORD (POR) 07/20/2005 - Current LENGTH OF AVAILABLE POR DATA 13.20 Years | 4,821 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,468.93 feet NAVD 1988 POINT OF ZERO FLOW -2.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 32,584 cfs | 11.0 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 482 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 2018 Page 483 2020 WY2018 Events Date of Peak Peak Gage Height (feet) None Hydrograph of peak WY 2018 flow event No recorded runoff during Water Year 2018. 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 2018 Page 484 Peak Discharge (cfs) New River Fire, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --8 19 --29 20 --21 --22 --23 --24 --25 --26 --27 --28 29 ----30 ----31 -----------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 37 0 0 0 0 MEAN 0 0 0 0 0 0 0 1 0 0 0 0 MAX 0 0 0 0 0 0 0 877 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 73 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 37 MEAN 0 MAX 877 MIN 0 AC_FT 73 NOTE: Station down due to vandalism, 12/11/17 – 01/10/18. FCDMC Annual Surface Water Report, Water Year 2018 Page 485 New River Dam Pool, ID #5614 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 STREAMGAGE INSTALLATION DATE 04/15/1986 - WY 1986 AVAILABLE PERIOD OF RECORD (POR) 08/30/1988 - Current LENGTH OF AVAILABLE POR DATA 30.09 Years | 10,989 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.85 feet Gage Height STAFF GAGES 21 ZERO GAGE HEIGHT ELEVATION 1,391.50 feet NAVD 1988 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 2018 Page 486 Watershed Map New River Dam Pool - water year peaks Volume (acre-feet) 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 487 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 488 Percent Spillway Capacity New River Dam Pool, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 489 New River Dam Pool, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 4 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 5 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 6 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 7 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 8 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 10 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 11 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 12 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 13 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 14 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 15 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 16 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 17 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 18 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 19 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 20 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 21 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 22 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 23 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 24 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 25 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 26 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 27 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 28 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 29 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 30 2.9 2.9 2.9 2.9 --2.9 2.9 2.9 2.9 2.9 2.9 2.9 31 2.9 --2.9 2.9 --2.9 --2.9 --2.9 2.9 -------------------------------------------------------------------------------MEAN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MAX 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 MIN 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.88 MAX 2.88 MIN 2.88 FCDMC Annual Surface Water Report, Water Year 2018 Page 490 New River Dam Outlet, ID #5613 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 STREAMGAGE INSTALLATION DATE 04/15/1986 - WY 1986 AVAILABLE PERIOD OF RECORD (POR) 08/30/1988 - Current LENGTH OF AVAILABLE POR DATA 30.09 Years | 10,989 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.68 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,378.15 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 2018 Page 491 Watershed Map New River Dam Outlet - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 492 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event No recorded runoff during Water Year 2018. Flood Flow Frequency Flows past this gage are regulated by New River Dam directly upstream. Flood Flow Frequency is therefore not valid. FCDMC Annual Surface Water Report, Water Year 2018 Page 493 New River Dam Outlet, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 494 New River at Bell Road, ID #5598 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 STREAMGAGE INSTALLATION DATE 04/04/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 04/04/1990 - Current LENGTH OF AVAILABLE POR DATA 28.49 Years | 10,407 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 1,192.02 feet NAVD 1988 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 2018 Page 495 Watershed Map New River at Bell Road - water year peaks 4,500 Discharge (cfs) 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 496 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event No runoff recorded during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=29, HEC-WRC computation (based on 29 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 136 1,100 2,960 6,340 14,200 23,500 NOTE(1): These results are based on limited data. NOTE(2): New River Dam upstream limits the peak discharge from the upper portion of the watershed. FCDMC Annual Surface Water Report, Water Year 2018 Page 497 New River at Bell Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 498 New River at Glendale Avenue, ID #5508, #61517 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 STREAMGAGE INSTALLATION DATE 03/21/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 03/21/1990 - Current LENGTH OF AVAILABLE POR DATA 28.53 Years | 10,421 Days DATA GAPS IN POR 08/23/2006 - 03/07/2007 TRANSDUCER GAGE ELEVATION 2.50 feet Gage Height STAGE GAGE TYPE RADAR Sensor RADAR GAGE ELEVATION 20.75 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,045.84 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 2018 Page 499 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 500 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/11/2018 1.22 40 Hydrograph of peak WY 2018 flow event, 08/11/2018 No hydrograph available. Flood Flow Frequency Flood Flow Frequency N=51, HEC-WRC computation (based on 51 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,230 2,890 4,540 6,630 10,200 13,600 NOTE(1): These results are based on limited data. NOTE(2): New River Dam upstream limits the peak discharge from the upper portion of the watershed. The analysis only includes runoff since the New River Dam’s construction. FCDMC Annual Surface Water Report, Water Year 2018 Page 501 New River at Glendale Avenue (#61517), runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3 3 2 2 2 3 3 3 3 2 2 2 2 1 2 2 2 2 --3 2 2 2 3 2 2 2 3 --4 2 3 2 2 2 3 3 3 --5 2 3 2 2 2 4 7 2 3 2 6 2 2 2 2 1 5 2 2 3 3 7 1 2 2 2 2 5 2 3 2 2 8 2 2 2 3 2 6 7 1 4 3 3 9 2 2 2 2 2 6 7 2 3 5 3 10 2 2 2 16 2 5 3 19 4 2 11 2 2 --3 3 5 2 9 28 2 12 2 3 1 2 1 3 5 2 57 12 3 13 2 3 1 3 2 2 --2 14 2 3 14 3 2 2 3 2 2 8 2 5 3 3 15 3 2 3 2 4 3 --4 3 3 2 16 2 4 2 2 2 3 8 4 1 3 2 17 2 3 2 2 2 4 9 3 1 3 3 18 3 2 2 2 1 2 7 2 2 3 3 19 2 2 2 --1 2 7 19 3 2 3 2 20 2 2 1 --2 2 8 3 2 --3 21 2 --2 --3 1 8 3 2 --2 22 2 --2 1 3 2 7 4 3 --2 23 2 --2 1 2 2 7 3 2 3 2 24 2 --1 2 2 3 5 3 2 3 2 25 2 --1 2 2 3 5 4 3 16 1 26 1 --2 2 2 3 --3 2 3 1 27 2 3 2 2 2 3 --3 3 2 1 28 2 3 2 2 4 3 --4 2 2 1 29 2 2 3 2 --3 --3 2 3 2 30 2 3 3 2 --2 5 3 3 3 2 31 2 --3 2 --4 ----7 4 -------------------------------------------------------------------------------TOTAL 66 69 62 73 39 73 162 41 70 172 137 71 MEAN 2 2 2 2 1 2 5 1 2 6 4 2 MAX 4 8 4 32 8 5 12 91 5 106 40 4 MIN 1 1 1 1 0 1 2 0 0 1 1 0 AC_FT 130 138 123 145 77 144 321 81 139 341 271 141 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1034 MEAN 3 MAX 106 MIN 0 AC_FT 2052 FCDMC Annual Surface Water Report, Water Year 2018 Page 502 New River at Glendale Avenue (#5508), runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 503 North Heights Dam, ID #5983 Site Data LOCATION Upstream from Golden Eagle Park Dam, to the north and west DRAINAGE AREA 2.13 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 STREAMGAGE INSTALLATION DATE 10/11/1996 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 10/11/1996 - Current LENGTH OF AVAILABLE POR DATA 21.97 Years | 8,025 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,781.26 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 2018 Page 504 Watershed Map North Heights Dam - water year peaks Volume (acre-feet) 18 16 14 12 10 8 6 4 2 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 505 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/14/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 2.65 8.22 9.49 2.74 Peak Volume (ac-ft) 0.1 3.0 4.1 0.1 Percent Spillway Capacity 0.1 2.2 3.0 0.1 Hydrograph of peak WY 2018 impoundment event, 08/08/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 506 North Heights Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 --4 5 6 7 8 6 9 1 10 2 11 12 13 14 4 15 16 17 18 19 20 21 22 1 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 1 0 6 8 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 4 0 145 164 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 2 0 11 15 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 15 MEAN 0 MAX 164 MIN 0 AC_FT 29 FCDMC Annual Surface Water Report, Water Year 2018 Page 507 North Heights Dam, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 3 4 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 508 North Heights Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 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 0.6 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.3 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 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 0.5 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 0.3 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 0.2 0.2 0.2 0.2 0.3 0.2 0.3 0.3 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 8.2 9.5 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.25 MAX 9.49 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2018 Page 509 Old Crosscut Canal near McDowell Road, ID #4748 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 STREAMGAGE INSTALLATION DATE 07/27/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 07/27/1994 - Current LENGTH OF AVAILABLE POR DATA DATA 24.18 Years | 8,832 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.13 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 559 cfs | 2.78 feet | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 510 Location Map (watershed not available) Old Crosscut Canal - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 511 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 12/17/2017 01/09/2018 01/16/2018 02/27/2018 07/09/2018 08/08/2018 08/10/2018 08/12/2018 Peak Gage Height 0.33 0.26 0.23 0.24 1.14 1.19 1.57 1.54 Peak Discharge (cfs) 47 39 36 37 190 200 282 276 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Runoff at this gage is not always in response to rainfall event, and therefore is not appropriate for flood frequency computation. FCDMC Annual Surface Water Report, Water Year 2018 Page 512 Old Crosscut Canal near McDowell Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 12 2 12 3 12 4 12 12 5 12 6 6 12 6 7 12 2 8 12 9 9 2 12 7 10 12 6 20 11 12 25 12 12 21 13 12 14 12 15 6 6 16 2 12 12 6 17 10 12 12 6 12 18 12 12 12 19 12 12 12 20 12 12 12 21 12 12 12 22 12 6 12 23 6 6 12 5 24 12 6 25 12 12 22 26 12 6 54 27 7 12 6 54 28 6 12 6 6 59 29 --12 3 30 --12 31 ----12 -----------------------------------------------------------------------------------TOTAL 0 0 10 4 13 324 162 6 126 10 81 190 MEAN 0 0 0 0 0 10 5 0 4 0 3 6 MAX 0 0 47 39 37 24 24 24 24 190 282 73 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 19 7 26 643 321 12 250 19 160 376 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 924 MEAN 3 MAX 282 MIN 0 AC_FT 1833 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 2018 Page 513 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 STREAMGAGE INSTALLATION DATE 10/08/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/08/2015 - Current LENGTH OF AVAILABLE POR DATA 2.98 Years | 1,089 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.49 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION No spillway TOP OF BASIN ELEVATION 4.9 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 514 Location Map Paradise Lane at 33rd Drive Basin - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 515 2020 Water Year 2025 WY2018 Events Date of Peak 01/09/2018 02/27/2018 07/09/2018 07/11/2018 07/30/2018 08/08/2018 Peak Gage Height (feet) 1.99 0.91 2.16 1.79 1.61 1.03 Peak Volume (ac-ft) 17.1 6.5 19.1 14.9 13.0 7.5 Percent Spillway Capacity 20.2 7.7 22.6 17.7 15.4 8.8 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 516 Paradise Lane at 33rd Drive Basin, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 9 2 5 10 3 4 11 4 2 12 8 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 2 28 3 29 --30 --3 31 --------2 -------------------------------------------------------------------------------TOTAL 0 0 0 5 3 2 0 0 0 26 5 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 18 13 6 0 0 0 20 15 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 10 6 3 0 0 0 51 9 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 40 MEAN 0 MAX 20 MIN 0 AC_FT 80 FCDMC Annual Surface Water Report, Water Year 2018 Page 517 Paradise Lane at 33rd Drive Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 1 4 10 3 2 11 3 1 12 5 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 1 28 1 29 --30 --2 31 --------1 -------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 17 6 3 0 0 0 19 7 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 19 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 518 Paradise Lane at 33rd Drive, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 3 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 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 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 8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 9 0.5 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.9 0.5 0.5 10 0.5 0.5 0.5 0.7 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.7 0.5 0.5 12 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.9 0.5 0.5 13 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 14 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 15 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 16 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 17 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 18 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 19 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 20 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 21 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 22 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 23 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 24 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 25 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 26 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 27 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 28 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 29 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.5 0.5 0.5 30 0.5 0.5 0.5 0.5 --0.5 0.5 0.5 0.5 0.7 0.5 0.5 31 0.5 --0.5 0.5 --0.5 --0.5 --0.6 0.5 -------------------------------------------------------------------------------MEAN 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 0.5 0.5 0.5 2.0 0.9 0.5 0.5 0.5 0.5 2.2 1.0 0.5 MIN 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.50 MAX 2.16 MIN 0.49 FCDMC Annual Surface Water Report, Water Year 2018 Page 519 Paradise Lane at 47th Avenue Basin, ID #13707 Site Data LOCATION Located on the northeast corner of Paradise Ln and 47th Ave DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED Upper ACDC SECTION/TOWNSHIP/RANGE S04 T3N R2E LATITUDE N 33° 37' 56.8" | +33.63244 LONGITUDE W 112° 09' 31.4" | -112.15873 STREAMGAGE INSTALLATION DATE 10/08/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/08/2015 - Current LENGTH OF AVAILABLE POR DATA 2.98 Years | 1,089 Days DATA GAPS IN POR 03/21/2017 – 02/21/2018 (337 Days) STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF 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 2018 Page 520 Location Map Volume (acre-feet) Paradise Lane at 47th Avenue Basin - water year peaks 10 9 8 7 6 5 4 3 2 1 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 521 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No recorded impoundment during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 522 Percent Spillway Capacity Paradise Lane at 47th Avenue Basin, runoff data Discharge, in fee, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 ----------2 ----------3 ----------4 ----------5 ----------6 ----------7 ----------8 ----------9 ----------10 ----------11 ----------12 ----------13 ----------14 ----------15 ----------16 ----------17 ----------18 ----------19 ----------20 ----------21 --------22 --------23 --------24 --------25 --------26 --------27 --------28 --------29 ----------30 ----------31 ---------------------------------------------------------------------------------------------TOTAL --------0 0 0 0 0 0 0 0 MEAN --------0 0 0 0 0 0 0 0 MAX --------0 0 0 0 0 0 0 0 MIN --------0 0 0 0 0 0 0 0 AC_FT --------0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 523 Paradise Lane at 47th Avenue Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 ----------1 20 ----------21 ----------22 --------1 23 --------24 --------25 --------26 --------27 --------28 --------29 ----------30 ----------31 ---------------------------------------------------------------------------------------------MEAN --------1 0 0 0 0 0 0 0 MAX --------2 0 0 0 2 2 0 5 MIN --------0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 524 Paradise Lane at 47th Avenue Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 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 2 ----------0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 ----------0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 ----------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 6 ----------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 8 ----------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 10 ----------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 12 ----------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 14 ----------0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 ----------0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 ----------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 18 ----------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 20 ----------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 22 --------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 24 --------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 26 --------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 28 --------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 30 ----------0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 ----------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 MAX --------0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.5 MIN --------0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.12 MAX 0.52 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2018 Page 525 Pecos Sediment Basin, ID #6537 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 STREAMGAGE INSTALLATION DATE 01/06/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 01/06/2009 - Current LENGTH OF AVAILABLE POR DATA 9.73 Years | 3,555 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.48 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,141.84 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 DAM ELEVATION 22.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 526 Location Map Pecos Basin Sediment - water year peaks Volume (acre-feet) 60 50 40 30 20 10 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 527 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No recorded impoundments during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 528 Percent Spillway Capacity Pecos Sediment Basin, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 529 Pecos Sediment Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 530 Pecos Sediment Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 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 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 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 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 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 10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 11 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 12 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 13 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 14 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 15 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 16 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 17 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 18 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 19 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 20 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 21 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 22 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 23 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 24 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 25 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 26 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 27 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 28 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 29 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 1.5 1.5 1.5 1.5 30 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 1.5 1.5 1.5 1.5 31 1.5 --1.5 1.5 --1.5 --1.5 --1.5 1.5 -------------------------------------------------------------------------------MEAN 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 MAX 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 MIN 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.48 MAX 1.48 MIN 1.48 FCDMC Annual Surface Water Report, Water Year 2018 Page 531 Pecos Basin Pool, ID #6538 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 STREAMGAGE INSTALLATION DATE 01/06/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 01/06/2009 - Current LENGTH OF AVAILABLE POR DATA 9.73 Years | 3,555 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 6.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,141.84 feet NAVD88 PZF (GATED OUTLET, ABOUT 1600 FT DS) 1.75 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 2018 Page 532 Location Map Volume (acre-feet) Pecos Basin Pool - water year peaks 200 180 160 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 533 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity No impoundment Hydrograph of peak WY 2018 impoundment event There were no recorded impoundments during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 534 Pecos Basin Pool, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 535 Pecos Basin Pool, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 536 Pecos Basin Pool, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 2 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 3 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 4 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 5 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 7 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 8 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 9 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 10 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 11 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 12 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 13 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 14 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 15 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 16 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 17 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 18 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 19 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 20 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 21 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 22 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 23 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 24 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 25 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 26 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 27 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 28 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 29 6.0 6.0 6.0 6.0 --6.0 6.0 6.0 6.0 6.0 6.0 6.0 30 6.0 6.0 6.0 6.0 --6.0 6.0 6.0 6.0 6.0 6.0 6.0 31 6.0 --6.0 6.0 --6.0 --6.0 --6.0 6.0 -------------------------------------------------------------------------------MEAN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 MAX 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 MIN 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 6.05 MAX 6.05 MIN 6.05 FCDMC Annual Surface Water Report, Water Year 2018 Page 537 Pecos North Inflow, ID #6532 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 STREAMGAGE INSTALLATION DATE 01/21/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 01/21/2009 - Current LENGTH OF AVAILABLE POR DATA 9.69 Years | 3,540 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,173.24 feet NAVD88 POINT OF ZERO FLOW 0.06 feet Gage Height EXTREME FOR PERIOD OF RECORD 277 cfs | 3.12 feet Gage Height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 538 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 2018 Page 539 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/10/2018 1.08 36 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 540 Pecos North Inflow, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 11 12 13 14 15 16 17 18 19 20 21 22 --23 --24 --25 --26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1 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 36 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 2 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 36 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2018 Page 541 Pecos East Inflow, ID #6533 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 STREAMGAGE INSTALLATION DATE 01/21/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 01/21/2009 - Current LENGTH OF AVAILABLE POR DATA 9.69 Years | 3,540 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.73 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,165.69 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 186 cfs | 1.86 feet gage height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 542 Location Map Discharge (cfs) Pecos Inflow East - water year peaks 200 180 160 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 543 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No recorded runoff during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 544 Pecos East Inflow, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 9 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 2018 TOTAL 0 MEAN 0 MAX 9 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 545 Pecos West Inflow, ID #6534 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 STREAMGAGE INSTALLATION DATE 01/21/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 01/21/2009 - Current LENGTH OF AVAILABLE POR DATA 9.69 Years | 3,540 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,163.24 feet NAVD88 POINT OF ZERO FLOW 0.05 feet Gage Height EXTREME FOR PERIOD OF RECORD 158 cfs | 2.60 feet Gage Height | 09/08/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 546 Location Map Pecos Inflow West - water year peaks 180 Discharge (cfs) 160 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 547 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 06/16/2018 1.08 26 Hydrograph of peak WY 2018 flow event, 06/16/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 548 Pecos West Inflow, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 1 0 1 0 0 1 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 1 0 26 0 4 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 2 0 1 0 0 1 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 2 MEAN 0 MAX 26 MIN 0 AC_FT 4 FCDMC Annual Surface Water Report, Water Year 2018 Page 549 Phoenix Dam #2A, ID #4789 Site Data LOCATION On 7th Street south of Thunderbird Road DRAINAGE AREA 0.75 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 STREAMGAGE INSTALLATION DATE 06/29/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 06/29/2009 - Current LENGTH OF AVAILABLE POR DATA 9.26 Years | 3,381 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height 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 2018 Page 550 Watershed Map Phoenix Dam #2a - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 551 2020 WY2018 Events Date of Peak 08/08/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 3.49 0.35 9.59 Peak Volume (ac-ft) 5.5 0.8 15.5 Percent Spillway Capacity 9.2 1.4 25.8 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 552 Phoenix Dam #2A, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 5 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 5 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 27 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 11 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 6 MEAN 0 MAX 27 MIN 0 AC_FT 11 FCDMC Annual Surface Water Report, Water Year 2018 Page 553 Phoenix Dam #2A, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2 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 15 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 15 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 554 Phoenix Dam #2A, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.6 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 9.59 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 555 Phoenix Dam #2B, ID #4778 Site Data LOCATION On Thunderbird Road east of 7th Street DRAINAGE AREA 0.60 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 STREAMGAGE INSTALLATION DATE 06/30/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 06/30/2009 - Current LENGTH OF AVAILABLE POR DATA 9.25 Years | 3,380 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height 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 2018 Page 556 Watershed Map Phoenix Dam #2b - water year peaks Volume (acre-feet) 14 12 10 8 6 4 2 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 557 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 08/23/2018 7.25 11.4 23.7 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 558 Phoenix Dam #2B, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 5 24 1 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 6 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 24 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 12 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 6 MEAN 0 MAX 24 MIN 0 AC_FT 12 FCDMC Annual Surface Water Report, Water Year 2018 Page 559 Phoenix Dam #2B, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2 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 11 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 11 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 560 Phoenix Dam #2B, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.2 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 7.25 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 561 Phoenix Dam #3, ID #4828 Site Data LOCATION In the Sunnyslope area of Phoenix, east of Cave Creek Road DRAINAGE AREA 0.5 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 STREAMGAGE INSTALLATION DATE 12/18/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 12/18/2001 - Current LENGTH OF AVAILABLE POR DATA 16.79 Years | 6,131 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,358.00 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 2018 Page 562 Watershed Map Phoenix Dam #3 - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 563 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/08/2018 08/10/2018 08/23/2018 Peak Gage Height (feet) 4.76 4.86 5.58 15.30 Peak Volume (ac-ft) 1.5 1.6 2.1 20.2 Percent Spillway Capacity 2.4 2.5 3.3 30.9 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 564 Phoenix Dam #3, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 --6 --7 8 1 9 1 10 1 11 12 13 14 15 16 17 18 19 20 21 22 23 13 24 11 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 1 26 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 36 52 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 1 51 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 26 MEAN 0 MAX 52 MIN 0 AC_FT 52 FCDMC Annual Surface Water Report, Water Year 2018 Page 565 Phoenix Dam #3, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 4 24 1 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 2 20 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 20 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 566 Phoenix Dam #3, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 2 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 3 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 4 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 5 0.7 0.7 0.7 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 0.7 6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 0.7 7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 9 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 10 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.7 11 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 12 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 13 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 14 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 15 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 16 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 17 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 18 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 19 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 20 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 21 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 22 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 23 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 3.9 0.7 24 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 2.6 0.7 25 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 26 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 27 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 28 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 29 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 0.7 0.7 0.7 0.7 30 0.7 0.7 0.7 0.7 --0.7 0.7 0.7 0.7 0.7 0.7 0.7 31 0.7 --0.7 0.7 --0.7 --0.7 --0.7 0.7 -------------------------------------------------------------------------------MEAN 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.7 MAX 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 4.8 15.3 0.7 MIN 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.67 MAX 15.30 MIN 0.65 FCDMC Annual Surface Water Report, Water Year 2018 Page 567 Phoenix Dam #4, ID #4838 Site Data LOCATION East of 18th Street north of Northern Avenue DRAINAGE AREA 0.60 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 STREAMGAGE INSTALLATION DATE 07/06/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 07/06/2009 - Current LENGTH OF AVAILABLE POR DATA 9.24 Years | 3,374 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF 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 2018 Page 568 Watershed Map Phoenix Dam #4 - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 569 2020 WY2018 Events Date of Peak 08/10/2018 08/23/2018 Peak Gage Height (feet) 8.35 10.24 Peak Volume (ac-ft) 7.3 13.0 Percent Spillway Capacity 17.1 30.4 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 570 Phoenix Dam #4, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 11 1 12 13 14 15 16 17 18 19 20 21 22 23 4 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 6 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 28 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 12 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 6 MEAN 0 MAX 28 MIN 0 AC_FT 12 FCDMC Annual Surface Water Report, Water Year 2018 Page 571 Phoenix Dam #4, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 13 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 13 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 572 Phoenix Dam #4, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.3 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.4 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 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10.2 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 2018 MEAN 0.11 MAX 10.24 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2018 Page 573 Phoenix Dam #7, ID #4853 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 STREAMGAGE INSTALLATION DATE 12/19/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 12/19/2001 - Current LENGTH OF AVAILABLE POR DATA 16.78 Years | 6,130 Days DATA GAPS IN POR 01/30/2009 -- 05/11/2009 STAGE GAGE ELEVATION 0.17 feet Gage Height STAFF GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,371.34 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 2018 Page 574 Watershed Map Phoenix Dam #7 - water year peaks Volume (acre-feet) 25 20 15 10 5 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 575 2010 Water Year 2015 2020 WY2018 Events Date of Peak 01/09/2018 07/09/2018 07/30/2018 08/08/2018 08/23/2018 Peak Gage Height (feet) 1.73 1.96 1.09 1.21 5.75 Peak Volume (ac-ft) 0.5 0.5 0.3 0.3 2.2 Percent Spillway Capacity 0.0 0.0 0.0 0.0 2.1 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 576 Phoenix Dam #7, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 12 0 0 0 0 0 14 41 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 0 0 0 0 1 4 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 3 MEAN 0 MAX 41 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2018 Page 577 Phoenix Dam #7, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 2 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 578 Phoenix Dam #7, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 1.7 0.2 0.2 0.2 0.2 0.2 2.0 5.8 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 2018 MEAN 0.17 MAX 5.75 MIN 0.17 FCDMC Annual Surface Water Report, Water Year 2018 Page 579 Phoenix Dam #99, ID #4843 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 STREAMGAGE INSTALLATION DATE 07/07/2009 - WY 2009 AVAILABLE PERIOD OF RECORD (POR) 07/07/2009 - Current LENGTH OF AVAILABLE POR DATA 9.23 Years | 3,373 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF 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 2018 Page 580 Watershed Map Phoenix Dam #99 - water year peaks 9 Impoundments occur in this dam above 9.0 feet stage. There have been no events exceeding that criteria since installation. 8 Stage (feet) 7 6 5 4 3 2 1 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 581 2020 WY2018 Events Date of Peak 01/09/2018 08/10/2018 08/23/2018 Peak Gage Height (feet) 0.67 1.72 0.97 Peak Volume (ac-ft) 0.0 0.0 0.0 Percent Spillway Capacity 0.0 0.0 0.0 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 582 Phoenix Dam #99, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2 0 0 0 0 0 2 7 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 2018 TOTAL 0 MEAN 0 MAX 7 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2018 Page 583 Phoenix Dam #99, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 584 Phoenix Dam #99, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 MAX 0.0 0.0 0.0 0.7 0.0 0.0 0.0 0.0 0.0 0.5 1.7 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.00 MAX 1.72 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 585 Phoenix East Park Dam, ID #4848 Site Data LOCATION Near Peoria and Seventh Avenues DRAINAGE AREA 0.11 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 STREAMGAGE INSTALLATION DATE 11/28/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 11/28/2001 - Current LENGTH OF AVAILABLE POR DATA 16.84 Years | 6,151 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 1 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 2018 Page 586 Watershed Map Volume (acre-feet) Phoenix East Park Dam - water year peaks 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 587 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event, No recorded impoundments during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 588 Percent Spillway Capacity Phoenix East Park Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 6 7 8 8 7 10 10 11 10 11 11 10 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 3 5 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 11 14 17 16 15 19 20 21 20 21 21 20 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 108 MEAN 0 MAX 5 MIN 0 AC_FT 214 FCDMC Annual Surface Water Report, Water Year 2018 Page 589 Phoenix East Park Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 590 Phoenix East Park Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 8 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.1 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.7 1.0 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 2018 MEAN 0.10 MAX 1.02 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2018 Page 591 Phoenix West Park Dam, ID #4858 Site Data LOCATION Near Peoria and Seventh Avenues DRAINAGE AREA 0.62 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 STREAMGAGE INSTALLATION DATE 11/29/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 11/29/2001 - Current LENGTH OF AVAILABLE POR DATA 16.84 Years | 6,150 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 1 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 2018 Page 592 Watershed Map Volume (acre-feet) Phoenix West Park Dam - water year peaks 20 18 16 14 12 10 8 6 4 2 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 593 2010 Water Year 2015 2020 WY2018 Events Date of Peak 01/09/2018 07/09/2018 08/23/2018 Peak Gage Height (feet) 2.10 3.46 1.27 Peak Volume (ac-ft) 3.2 5.2 1.9 Percent Spillway Capacity 2.8 4.6 1.7 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 594 Phoenix West Park Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 16 0 0 0 0 0 28 7 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 1 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 28 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2018 Page 595 Phoenix West Park Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 3 0 0 0 0 0 5 2 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 596 Phoenix West Park Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 16 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 17 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 18 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 20 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 21 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 22 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 23 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 29 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 2.1 0.2 0.2 0.2 0.2 0.2 3.5 1.3 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 2018 MEAN 0.20 MAX 3.46 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 597 Phoenix Zoo Dam #3, ID #4307 Site Data LOCATION Located in Papago Park on the north side of the Phoenix Zoo property. DRAINAGE AREA 0.07 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 STREAMGAGE INSTALLATION DATE 04/25/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 04/25/2016 - Current LENGTH OF AVAILABLE POR DATA 2.43 Years | 889 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 8.90 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 9.0 feet Gage Height SPILLWAY CREST ELEVATION 12.80 feet Gage Height TOP OF BASIN ELEVATION 13.40 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 598 Location Map Phoenix Zoo Dam #3 - water year peaks Volume (acre-feet) 13.1 13 12.9 12.8 12.7 12.6 12.5 12.4 12.3 12.2 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 599 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 07/10/2018 9.50 12.97 98.0 Hydrograph of peak WY 2018 impoundment, 07/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 600 Phoenix Zoo Dam #3, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 601 Phoenix Zoo Dam #3, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 12 12 13 13 12 13 12 13 12 12 12 12 2 12 13 13 13 12 13 12 13 12 12 12 12 3 12 13 13 13 12 13 13 13 12 12 12 12 4 12 13 13 13 12 13 13 13 12 12 12 12 5 12 13 13 13 12 13 12 13 12 12 12 12 6 12 13 13 13 12 13 12 13 12 12 12 13 7 12 13 12 13 12 13 12 13 12 12 12 13 8 12 13 12 13 12 13 12 13 12 12 12 13 9 12 13 12 12 12 13 12 13 12 12 12 12 10 12 13 12 12 13 13 12 13 12 13 13 12 11 12 13 12 12 13 13 12 13 12 12 13 12 12 12 13 12 12 13 13 12 13 12 12 12 12 13 12 13 12 12 13 13 12 13 12 12 12 12 14 12 13 13 12 13 13 12 13 12 13 12 12 15 12 13 13 12 13 13 12 13 12 13 12 12 16 12 13 13 12 13 13 12 13 12 13 12 12 17 12 13 13 12 13 12 13 13 12 13 12 12 18 12 13 13 12 13 12 12 13 12 13 12 12 19 12 13 13 12 13 13 13 13 12 13 12 12 20 12 13 13 12 13 13 13 13 12 12 12 12 21 12 13 13 12 13 12 13 13 12 12 12 12 22 12 13 13 12 13 12 13 13 12 12 12 12 23 12 13 13 12 13 12 13 13 12 12 12 12 24 12 13 13 12 13 12 13 13 12 12 12 12 25 12 13 13 12 13 12 13 13 12 12 13 12 26 12 13 13 12 13 12 13 12 12 12 13 12 27 12 13 13 12 13 13 13 12 12 12 13 12 28 12 13 13 12 13 12 13 12 12 12 12 12 29 12 13 13 12 --12 13 12 12 12 12 12 30 12 13 13 12 --12 13 12 12 12 12 13 31 12 --13 12 --13 --12 --12 12 -------------------------------------------------------------------------------MEAN 12 13 13 12 13 13 12 13 12 12 12 12 MAX 12 13 13 13 13 13 13 13 13 13 13 13 MIN 12 12 12 12 12 12 12 12 12 12 12 12 -----------------------------------------------------------------------------WTR YR 2018 MEAN 12 MAX 13 MIN 12 FCDMC Annual Surface Water Report, Water Year 2018 Page 602 Phoenix Zoo Dam #3, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 8.9 9.0 9.6 9.2 8.9 9.3 9.1 9.2 9.1 9.0 8.9 8.9 2 8.9 9.2 9.7 9.2 8.9 9.6 9.1 9.3 9.1 9.0 9.0 8.9 3 8.9 9.2 9.8 9.2 8.9 9.9 9.1 9.3 9.0 9.0 9.0 9.0 4 8.9 9.3 9.9 9.2 8.9 10.2 9.2 9.3 9.0 8.9 9.0 9.1 5 8.9 9.3 9.8 9.2 8.9 10.2 9.1 9.3 9.0 8.9 9.0 9.1 6 8.9 9.4 9.2 9.2 8.9 9.9 9.0 9.5 9.0 8.9 8.9 9.1 7 8.9 9.4 9.1 9.2 8.9 9.7 9.0 9.5 9.0 8.9 8.9 9.2 8 8.9 9.5 9.1 9.2 8.9 9.6 9.0 9.5 9.0 8.9 9.0 9.1 9 8.9 9.5 9.1 9.1 9.1 9.6 9.1 9.4 9.0 9.1 9.0 9.0 10 8.9 9.5 9.1 9.1 9.2 9.7 9.0 9.3 9.0 9.3 9.1 9.0 11 8.9 9.5 9.1 9.1 9.2 9.7 9.1 9.2 9.0 9.1 9.1 9.0 12 8.9 9.6 9.1 9.0 9.4 9.8 9.1 9.2 9.0 9.0 9.0 9.0 13 8.9 9.6 9.1 9.0 9.3 9.8 9.0 9.3 9.0 9.0 9.0 9.0 14 8.9 9.7 9.1 9.0 9.3 9.4 9.0 9.3 9.0 9.1 8.9 9.0 15 8.9 9.7 9.2 8.9 9.3 9.2 9.0 9.3 9.0 9.2 8.9 9.0 16 8.9 9.7 9.2 8.9 9.3 9.1 9.1 9.4 9.1 9.2 8.9 9.0 17 8.9 9.8 9.2 8.9 9.3 9.1 9.1 9.4 9.0 9.2 8.9 9.0 18 8.9 9.9 9.2 8.9 9.3 9.1 9.1 9.4 9.0 9.2 8.9 9.0 19 8.9 9.9 9.2 8.9 9.3 9.1 9.1 9.4 9.0 9.2 8.9 9.1 20 8.9 9.9 9.2 8.9 9.2 9.1 9.1 9.4 9.0 9.1 8.9 9.1 21 8.9 9.9 9.2 8.9 9.2 9.1 9.1 9.4 9.0 9.1 8.9 9.1 22 8.9 9.9 9.2 8.9 9.3 9.1 9.1 9.4 9.0 9.0 8.9 9.1 23 8.9 9.7 9.2 8.9 9.3 9.1 9.2 9.3 8.9 9.0 8.9 9.1 24 8.9 9.6 9.2 8.9 9.3 9.1 9.2 9.2 9.0 9.0 8.9 9.1 25 8.9 9.5 9.2 8.9 9.3 9.1 9.2 9.1 9.0 9.0 9.2 9.1 26 8.9 9.4 9.2 8.9 9.2 9.1 9.2 9.1 9.0 9.0 9.3 9.1 27 8.9 9.4 9.2 8.9 9.3 9.1 9.1 9.0 9.0 8.9 9.2 9.1 28 8.9 9.4 9.2 8.9 9.3 9.1 9.1 9.0 9.0 8.9 9.1 9.1 29 8.9 9.4 9.1 8.9 --9.1 9.2 9.0 9.0 8.9 9.0 9.1 30 8.9 9.5 9.2 8.9 --9.1 9.2 9.0 9.0 8.9 8.9 9.1 31 8.9 --9.2 8.9 --9.1 --9.0 --9.0 8.9 -------------------------------------------------------------------------------MEAN 8.9 9.5 9.2 9.0 9.2 9.4 9.1 9.3 9.0 9.0 9.0 9.0 MAX 8.9 10.0 10.1 9.3 9.4 10.5 9.3 9.7 9.2 9.5 9.4 9.3 MIN 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9 -----------------------------------------------------------------------------WTR YR 2018 MEAN 9.14 MAX 10.52 MIN 8.90 FCDMC Annual Surface Water Report, Water Year 2018 Page 603 Phoenix Zoo Dam #5, ID #4407 Site Data LOCATION Located within the Phoenix Zoo property at the southwest corner. DRAINAGE AREA 0.32 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 STREAMGAGE INSTALLATION DATE 04/28/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 04/28/2016 - Current LENGTH OF AVAILABLE POR DATA 2.43 Years | 886 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 7.75 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,204.50 feet MSL POINT OF ZERO FLOW Approximately 7.8 feet Gage Height SPILLWAY CREST ELEVATION 8.70 feet Gage Height TOP OF BASIN ELEVATION 9.20 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 604 Location Map Phoenix Zoo Dam #5 - water year peaks Volume (acre-feet) 12 10 8 6 4 2 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 605 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) Percent Spillway Capacity 07/09/2018 8.93 9.89 102.9 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 606 Phoenix Zoo Dam #5, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 607 Phoenix Zoo Dam #5, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 9 9 9 9 9 9 9 9 9 9 9 2 9 9 9 9 9 9 9 9 9 9 9 9 3 9 9 9 9 9 9 9 9 9 9 9 9 4 9 9 9 9 9 9 9 9 9 9 9 9 5 9 9 9 9 9 9 9 9 9 9 9 9 6 9 9 9 9 9 9 9 9 9 9 9 9 7 9 9 9 9 9 9 9 9 9 9 9 9 8 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 9 9 9 9 9 9 9 9 9 9 11 9 9 9 9 9 9 9 9 9 9 9 9 12 9 9 9 9 9 9 9 9 9 9 9 9 13 9 9 9 9 9 9 9 9 9 9 9 9 14 9 9 9 9 9 9 9 9 9 9 9 9 15 9 9 9 9 9 9 9 9 9 9 9 9 16 9 9 9 9 9 9 9 9 9 9 9 9 17 9 9 9 9 9 9 9 9 9 9 9 9 18 9 9 9 9 9 9 9 9 9 9 9 9 19 9 9 9 9 9 9 9 9 9 9 9 9 20 9 9 9 9 9 9 9 9 9 9 9 9 21 9 9 9 9 9 9 9 9 9 9 9 9 22 9 9 9 9 9 9 9 9 9 9 9 9 23 9 9 9 9 9 9 9 9 9 9 9 9 24 9 9 9 9 9 9 9 9 9 9 9 9 25 9 9 9 9 9 9 9 9 9 9 9 9 26 9 9 9 9 9 9 9 9 9 9 9 9 27 9 9 9 9 9 9 9 9 9 9 9 9 28 9 9 9 9 9 9 9 9 9 9 9 9 29 9 9 9 9 --9 9 9 9 9 9 9 30 9 9 9 9 --9 9 9 9 9 9 9 31 9 --9 9 --9 --9 --9 9 -------------------------------------------------------------------------------MEAN 9 9 9 9 9 9 9 9 9 9 9 9 MAX 9 9 9 9 9 9 9 9 9 10 10 9 MIN 9 9 9 9 9 9 9 9 9 9 9 9 -----------------------------------------------------------------------------WTR YR 2018 MEAN 9 MAX 10 MIN 9 FCDMC Annual Surface Water Report, Water Year 2018 Page 608 Phoenix Zoo Dam #5, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 8.3 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.3 2 8.3 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.3 3 8.3 8.4 8.3 8.4 8.3 8.3 8.4 8.4 8.4 8.4 8.3 8.3 4 8.3 8.4 8.3 8.4 8.3 8.3 8.4 8.4 8.4 8.3 8.3 8.4 5 8.3 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.4 6 8.3 8.4 8.4 8.4 8.3 8.5 8.4 8.4 8.4 8.3 8.3 8.4 7 8.4 8.4 8.4 8.4 8.3 8.5 8.4 8.4 8.4 8.4 8.3 8.4 8 8.4 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.3 8.3 8.4 9 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.5 8.3 8.4 10 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.5 8.4 11 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.5 8.4 12 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.4 8.4 13 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.4 8.4 14 8.4 8.4 8.4 8.3 8.4 8.5 8.4 8.3 8.4 8.3 8.4 8.4 15 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.3 8.3 8.3 8.3 8.4 16 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.2 8.3 8.4 17 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.2 8.3 8.4 18 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.3 8.4 8.2 8.3 8.4 19 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.3 8.4 8.2 8.3 8.4 20 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.3 8.4 8.3 8.3 8.4 21 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.3 8.4 8.3 8.2 8.4 22 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.2 8.4 23 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.3 8.2 8.4 24 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.4 8.3 8.2 8.4 25 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.2 8.4 26 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.4 8.4 27 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.5 8.4 28 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.4 8.4 29 8.4 8.4 8.4 8.3 --8.4 8.4 8.4 8.3 8.3 8.4 8.4 30 8.4 8.4 8.4 8.3 --8.4 8.4 8.4 8.3 8.3 8.3 8.4 31 8.4 --8.4 8.3 --8.4 --8.4 --8.3 8.3 -------------------------------------------------------------------------------MEAN 8.4 8.4 8.4 8.3 8.4 8.4 8.4 8.4 8.4 8.3 8.3 8.4 MAX 8.4 8.6 8.5 8.4 8.6 8.5 8.6 8.4 8.5 8.9 8.8 8.4 MIN 8.3 8.4 8.3 8.3 8.3 8.3 8.4 8.3 8.3 8.2 8.2 8.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 8.38 MAX 8.93 MIN 8.18 FCDMC Annual Surface Water Report, Water Year 2018 Page 609 Picacho Wash, ID #5678 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 AVAILABLE PERIOD OF RECORD (POR) 04/11/2012 - Current LENGTH OF AVAILABLE POR DATA 6.47 Years | 2,364 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.98 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,961.78 feet NAVD 1988 POINT OF ZERO FLOW 0.1 feet EXTREME FOR PERIOD OF RECORD 2,012 cfs | 4.07 feet | 07/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 610 Watershed Map Picacho Wash - water year peaks Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 611 2015 Water Year 2020 WY2018 Events Date of Peak 07/11/2018 08/17/2018 Peak Gage Height 4.07 2.10 Peak Discharge (cfs) 2,012 395 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 612 Picacho Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 24 12 13 14 15 16 17 3 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 24 3 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 0 0 0 0 0 0 2012 395 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 48 7 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 28 MEAN 0 MAX 2012 MIN 0 AC_FT 55 FCDMC Annual Surface Water Report, Water Year 2018 Page 613 Pima Canyon Wash, ID #6523 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 STREAMGAGE INSTALLATION DATE 04/15/2014 - WY 2014 AVAILABLE PERIOD OF RECORD (POR) 04/15/2014 - Current LENGTH OF AVAILABLE POR DATA 4.46 Years | 1,630 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.69 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,302.90 feet NAVD88 POINT OF ZERO FLOW 0.0 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 2018 Page 614 Watershed Map Pima Canyon Wash - water year peaks 400 350 300 250 200 150 100 50 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 615 2015 Water Year 2020 WY2018 Events Date of Peak 08/10/2018 (00:43) 08/10/2018 (23:27) Peak Gage Height 2.87 2.65 Peak Discharge (cfs) 29 22 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 616 Pima Canyon Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 29 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 1 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 0 MEAN 0 MAX 29 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2018 Page 617 Powder House Wash, ID #7113 Site Data LOCATION In Wickenburg, north of Constellation Road DRAINAGE AREA 1.8 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 STREAMGAGE INSTALLATION DATE 05/18/1995 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 05/18/1995 - Current LENGTH OF AVAILABLE POR DATA 23.37 Years | 8,537 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 2 ZERO GAGE HEIGHT ELEVATION 2,133.71 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,312 cfs | 2.42 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 618 Watershed Map Powder House Wash - water year peaks Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 619 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Sensor level is about 0.5 feet above channel bottom, so flow likely occurred, but missed the sensor. Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 183 672 1,260 2,060 3,510 4,890 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 620 Powder House Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 NOTE: Elevation of level sensor is about 0.5 feet above channel. There is evidence that flow occurred in summer 2018, but was not recorded by the level sensor. FCDMC Annual Surface Water Report, Water Year 2018 Page 621 Powerline Floodway, ID #6708 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 STREAMGAGE INSTALLATION DATE 02/13/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 02/13/2008 - Current LENGTH OF AVAILABLE POR DATA 10.63 Years | 3,883 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,381.65 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 2018 Page 622 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 2018 Page 623 2020 WY2018 Events Date of Peak 08/10/2018 08/23/2018 Peak Gage Height 3.17 1.80 Peak Discharge (cfs) 526 197 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Runoff at this station is mainly due to discharge from Powerline FRS and Vineyard FRS and is regulated by the size of the outlets for each structure. Flood Frequency data would not be meaningful at this location. FCDMC Annual Surface Water Report, Water Year 2018 Page 624 Powerline Floodway, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 47 11 12 13 14 15 16 17 18 19 20 21 22 23 10 24 37 25 22 26 5 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 121 0 MEAN 0 0 0 0 0 0 0 0 0 0 4 0 MAX 0 0 0 0 0 0 0 0 0 0 526 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 0 239 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 121 MEAN 0 MAX 526 MIN 0 AC_FT 239 FCDMC Annual Surface Water Report, Water Year 2018 Page 625 Powerline FRS, ID #6683 Site Data LOCATION Located south of Apache Junction east of Ironwood Road DRAINAGE AREA 46.2 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 STREAMGAGE INSTALLATION DATE 12/02/1992 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 12/02/1992 - Current LENGTH OF AVAILABLE POR DATA 25.83 Years | 9,434 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 5 ZERO GAGE HEIGHT ELEVATION 1,563.82 feet NAVD 1988 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 2018 Page 626 Watershed Map Powerline FRS - water year peaks Volume (acre-feet) 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 627 2005 Axis Title 2010 2015 2020 WY2018 Events Date of Peak 08/10/2018 08/23/2018 08/24/2018 Peak Gage Height (feet) 2.50 2.45 4.84 Peak Volume (ac-ft) 171.3 166.3 440.2 Percent Spillway Capacity 3.5 3.4 9.0 Hydrograph of peak WY 2018 impoundment event, 08/24/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 628 Powerline FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 3 3 3 4 2 5 2 6 2 7 2 8 2 9 1 10 1 27 11 1 19 12 1 10 13 3 4 14 2 15 2 16 2 17 1 18 3 19 3 20 1 21 2 22 2 23 --2 6 24 --2 59 25 --2 54 26 2 32 27 2 16 28 3 10 29 --2 8 30 --10 31 --------7 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 58 0 0 262 2 MEAN 0 0 0 0 0 0 0 2 0 0 8 0 MAX 0 6 0 0 0 0 0 6 0 0 67 5 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 114 0 0 519 4 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 322 MEAN 1 MAX 67 MIN 0 AC_FT 638 FCDMC Annual Surface Water Report, Water Year 2018 Page 629 Powerline FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 9 2 12 3 16 4 11 5 8 6 9 7 8 8 9 9 5 1 10 5 134 11 6 95 12 5 53 13 1 16 19 14 11 15 10 16 11 17 7 18 12 19 13 20 7 21 11 22 10 23 --10 30 24 --10 356 25 --10 306 26 9 161 27 10 83 28 12 54 29 --9 39 30 --50 31 --------36 -------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 9 0 0 46 0 MAX 0 28 0 0 0 0 0 31 0 0 440 26 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 5 MAX 440 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 630 Powerline FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.3 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 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 2.1 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.5 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.8 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.4 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.3 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 0.3 0.2 0.2 0.2 0.2 19 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.3 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 0.3 0.2 0.2 0.6 0.2 24 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 4.2 0.2 25 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 3.7 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.4 0.2 27 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 1.3 0.2 28 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.8 0.2 29 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.6 0.2 30 0.2 0.2 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.8 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.2 0.6 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.8 0.2 MAX 0.2 0.4 0.2 0.2 0.2 0.2 0.2 0.5 0.2 0.2 4.8 0.4 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 2018 MEAN 0.25 MAX 4.84 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 631 Price Drain, ID #4573 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 STREAMGAGE INSTALLATION DATE 02/18/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 02/18/2001 - Current LENGTH OF AVAILABLE POR DATA DATA 17.62 Years | 6,434 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.26 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 632 Location Map (watershed undetermined) Price Drain - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 633 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/10/2018 08/08/2018 (00:20) 08/08/2018 (21:14) 08/10/2018 08/12/2018 09/19/2018 Peak Gage Height (feet) 4.13 4.53 2.36 2.71 6.35 4.33 1.94 Peak Discharge (cfs) 246 299 86 111 607 272 58 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency This site is not suitable to compute a flood flow frequency. FCDMC Annual Surface Water Report, Water Year 2018 Page 634 Price Drain, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 20 20 11 13 11 12 17 15 30 36 28 17 2 21 20 11 13 12 15 18 25 25 67 23 18 3 21 22 10 13 11 14 17 22 29 50 24 18 4 20 20 10 16 12 10 22 25 20 41 24 19 5 21 21 10 20 13 9 26 22 21 33 24 21 6 19 20 10 18 18 9 17 27 41 38 26 20 7 20 23 13 13 21 10 20 23 25 35 27 19 8 20 22 12 13 19 14 16 26 28 48 49 20 9 20 23 12 12 16 20 16 32 29 81 45 20 10 20 24 12 36 18 19 14 27 31 100 135 16 11 21 22 12 20 16 16 18 26 33 52 46 15 12 20 22 11 21 13 13 15 28 36 48 62 17 13 25 22 12 21 15 17 16 27 48 27 39 15 14 21 24 13 15 18 20 22 29 46 26 22 21 15 21 23 14 12 18 16 18 31 37 24 17 18 16 22 21 12 13 15 15 19 38 44 23 18 17 17 38 25 24 14 16 17 20 31 30 21 17 19 18 39 21 12 14 16 18 25 22 26 28 17 17 19 29 20 13 13 20 18 25 18 30 25 18 29 20 26 20 16 16 16 20 21 22 39 21 19 26 21 23 20 13 17 14 19 24 19 27 24 20 21 22 20 19 15 19 14 25 19 18 40 28 20 17 23 20 19 11 17 12 20 13 33 29 25 21 18 24 20 20 11 18 13 19 16 25 43 26 40 16 25 20 20 11 16 10 18 20 25 50 28 27 16 26 20 20 11 10 9 17 18 32 47 30 20 16 27 23 22 11 11 9 16 21 36 63 24 21 14 28 21 25 11 14 17 17 21 34 49 23 20 20 29 21 13 11 9 --23 22 25 37 32 19 15 30 20 12 12 11 --19 19 33 43 27 18 14 31 20 --14 10 --18 --35 --22 19 -------------------------------------------------------------------------------TOTAL 693 622 377 475 414 512 576 829 1079 1112 926 548 MEAN 22 21 12 15 15 17 19 27 36 36 30 18 MAX 68 38 49 71 49 35 52 61 110 299 607 58 MIN 19 12 8 7 6 7 12 13 18 18 15 12 AC_FT 1376 1234 748 942 821 1016 1142 1645 2141 2205 1837 1087 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 8164 MEAN 22 MAX 607 MIN 6 AC_FT 16193 FCDMC Annual Surface Water Report, Water Year 2018 Page 635 Prickly Pear Wash, ID #8107 Site Data LOCATION Located at John Teets Park near Ramuda Drive and 43rd Way DRAINAGE AREA 1.38 mi2 STREAM TYPE Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Skunk Creek SECTION/TOWNSHIP/RANGE S06 T4N R4E LATITUDE N 33° 43' 15.9" | +33.72107 LONGITUDE W 111° 59' 24.0" | -111.99001 STREAMGAGE INSTALLATION DATE 06/01/2017 - WY 2017 AVAILABLE PERIOD OF RECORD (POR) 06/01/2017 - Current LENGTH OF AVAILABLE POR DATA 1.33 Years | 487 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.70 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 1,730.25 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD None recorded since installation FCDMC Annual Surface Water Report, Water Year 2018 Page 636 Watershed Map Discharge (cfs) Prickly Pear Wash - water year peaks 100 90 80 70 60 50 40 30 20 10 0 No runoff events recorded since installation. 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 637 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event There was no runoff events recorded in Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 638 Prickly Pear Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 639 Queen Creek at CAP, ID #6723 Site Data LOCATION Located in Pinal County at the CAP crossing and the Sonoqui Dike DRAINAGE AREA 256 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 STREAMGAGE INSTALLATION DATE 01/14/1999 - WY 1999 AVAILABLE PERIOD OF RECORD (POR) 01/14/1999 - Current LENGTH OF AVAILABLE POR DATA 19.71 Years | 7,200 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,043 cfs | 10.15 feet | 02/12/2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 640 Watershed Map Queen Creek at CAP - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 641 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 08/23/2018 08/25/2018 09/02/2018 Peak Gage Height 4.19 3.55 4.44 Peak Discharge (cfs) 372 272 416 Hydrograph of peak WY 2018 flow event, 09/02/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 642 Queen Creek at CAP, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 156 3 18 4 1 5 1 6 1 7 8 9 --10 --11 12 13 14 15 16 17 18 19 20 21 22 23 156 24 1 25 88 26 1 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 2 0 0 0 0 0 0 0 0 246 175 MEAN 0 0 0 0 0 0 0 0 0 0 8 6 MAX 0 1 0 0 0 0 0 0 0 0 372 416 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 5 0 0 0 0 0 0 0 0 488 346 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 423 MEAN 1 MAX 416 MIN 0 AC_FT 840 FCDMC Annual Surface Water Report, Water Year 2018 Page 643 Queen Creek at Rittenhouse Road, ID #6707 Site Data LOCATION At the Queen Creek crossing of Rittenhouse Road DRAINAGE AREA 236 mi2 STREAM TYPE 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 STREAMGAGE INSTALLATION DATE 09/14/1993 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 09/14/1993 - Current LENGTH OF AVAILABLE POR DATA 25.05 Years | 9,148 Days DATA GAPS IN POR 05/28/2014 - 06/29/2014 STAGE GAGE ELEVATION 2.10 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,438.06 feet M.S.L. POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 575 cfs | 2.25 feet | 01/06/1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 644 Watershed Map Queen Creek at Rittenhouse Road - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 645 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event There was no runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 646 Queen Creek at Rittenhouse Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 0 0 0 0 1 1 1 1 1 1 1 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 1 0 0 1 1 1 1 2 2 2 2 2 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 8 MEAN 0 MAX 0 MIN 0 AC_FT 16 FCDMC Annual Surface Water Report, Water Year 2018 Page 647 Rainbow Wash, ID #6953 Site Data LOCATION Located on SR85 about 10 miles south of Buckeye DRAINAGE AREA 17.6 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 STREAMGAGE INSTALLATION DATE 11/06/2000 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 11/06/2000 - Current LENGTH OF AVAILABLE POR DATA 17.90 Years | 6,538 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.07 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 900.06 feet NAVD 1988 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 2018 Page 648 Watershed Map Rainbow Wash - water year peaks 8,000 Discharge (cfs) 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 649 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=18, HEC-WRC computation (based on 18 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 513 1,690 3,120 5,150 9,020 13,100 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 650 Rainbow Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 1 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 1 1 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 1 MIN 0 AC_FT 1 FCDMC Annual Surface Water Report, Water Year 2018 Page 651 Rawhide Wash, ID #4863 Site Data LOCATION On Dynamite Boulevard about 1/4 mile west of Pima Road DRAINAGE AREA 9.2 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 STREAMGAGE INSTALLATION DATE 07/27/1999 - WY 1999 AVAILABLE PERIOD OF RECORD (POR) 07/27/1999 - Current LENGTH OF AVAILABLE POR DATA 19.18 Years | 7,006 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.52 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 652 Watershed Map Discharge (cfs) Rawhide Wash - water year peaks 500 450 400 350 300 250 200 150 100 50 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 653 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event There were no runoff events recorded at this gage in Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 654 Rawhide Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 655 Reata Pass Dam, ID #4938 Site Data LOCATION Located south of Dynamite Boulevard and east of Alma School Parkway DRAINAGE AREA 1.0 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 STREAMGAGE INSTALLATION DATE 10/02/2001 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 10/02/2001 - Current LENGTH OF AVAILABLE POR DATA 17.00 Years | 6,208 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,590.15 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY CREST ELEVATION 16.85 feet Gage Height TOP OF DAM ELEVATION 19.45 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 656 Watershed Map Reata Pass Dam - water year peaks Volume (acre-feet) 25 20 15 10 5 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 657 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/14/2018 07/30/2018 08/08/2018 Peak Gage Height (feet) 0.99 1.42 1.59 2.96 Peak Volume (ac-ft) 0.0 0.2 0.3 1.3 Percent Spillway Capacity 0.5 0.8 0.9 2.7 Hydrograph of peak WY 2018 impoundment event, 08/08/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 658 Reata Pass Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 5 9 10 11 12 13 14 15 16 17 18 19 20 21 22 --23 --24 --25 --26 --27 28 29 --30 --1 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 1 5 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 8 70 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 2 10 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 6 MEAN 0 MAX 70 MIN 0 AC_FT 12 FCDMC Annual Surface Water Report, Water Year 2018 Page 659 Reata Pass Dam, volume data Volume, in Acre-Feet, Water Year October 2017 to September 2018 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 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 660 Reata Pass Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.5 0.1 9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.3 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 0.3 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.2 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 23 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 25 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 27 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.4 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.2 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.6 3.0 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 2018 MEAN 0.15 MAX 2.96 MIN 0.15 FCDMC Annual Surface Water Report, Water Year 2018 Page 661 Reata Pass Wash – ID #4588 Site Data LOCATION Located on Pinnacle Peak Road about 1.6 miles east of Pima Road DRAINAGE AREA 7.9 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 STREAMGAGE INSTALLATION DATE 05/15/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 05/15/2001 - Current LENGTH OF AVAILABLE POR DATA 17.38 Years | 6,348 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.30 feet Gage Height ZERO GAGE HEIGHT ELEVATION 2,172.92 feet NAVD 1988 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 2018 Page 662 Watershed Map Reata Pass Wash - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 663 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/16/2018 07/30/2018 08/08/2018 Peak Gage Height (feet) 1.09 0.55 0.87 1.87 Peak Discharge (cfs) 286 59 165 929 Hydrograph of peak WY 2018 flow event, 08/08/2018 Flood Flow Frequency Flood Flow Frequency N=18, HEC-WRC computation (based on 18 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 100 648 1,530 2,950 5,790 8,790 FCDMC Annual Surface Water Report, Water Year 2018 Page 664 Reata Pass Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 50 9 12 4 10 11 12 13 14 15 16 2 17 18 19 8 20 21 22 23 24 25 26 27 28 29 --30 --9 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 32 54 0 MEAN 0 0 0 0 0 0 0 0 0 1 2 0 MAX 0 0 0 0 0 0 0 0 0 286 929 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 63 107 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 86 MEAN 0 MAX 929 MIN 0 AC_FT 170 FCDMC Annual Surface Water Report, Water Year 2018 Page 665 Rittenhouse FRS, ID #6703 Site Data LOCATION East of town of Queen Creek in Pinal County DRAINAGE AREA 47.1 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 STREAMGAGE INSTALLATION DATE 09/27/1988 - WY 1988 AVAILABLE PERIOD OF RECORD (POR) 09/27/1988 - Current LENGTH OF AVAILABLE POR DATA 30.01 Years | 10,961 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 4 ZERO GAGE HEIGHT ELEVATION 1,579.00 feet NAVD 1988 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 2018 Page 666 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 667 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 08/13/2018 08/23/2018 Peak Gage Height (feet) 1.85 1.90 Peak Volume (ac-ft) 4.4 4.6 Percent Spillway Capacity 0.1 0.1 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 668 Rittenhouse FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 3 14 15 16 17 18 19 20 21 22 --23 --1 24 --2 25 --26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 6 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 19 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 0 11 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 6 MEAN 0 MAX 19 MIN 0 AC_FT 11 FCDMC Annual Surface Water Report, Water Year 2018 Page 669 Rittenhouse FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 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 5 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 670 Rittenhouse FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 13 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 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 23 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 24 0.2 0.2 --0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 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 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.9 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 2018 MEAN 0.25 MAX 1.90 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2018 Page 671 Roeser Road at 23rd Avenue Basin, ID #66807 Site Data LOCATION Located on the basin at the northeast corner of Roeser Rd and 23rd Avenue DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Phoenix, Arizona WATERSHED South Mountain SECTION/TOWNSHIP/RANGE S25 T1N R2E LATITUDE N 33° 23' 58.9" | +33.39968 LONGITUDE W 112° 09' 02.5" | -112.15070 STREAMGAGE INSTALLATION DATE 10/01/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/01/2015 - Current LENGTH OF AVAILABLE POR DATA 3.00 Years | 1,096 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 672 Watershed Map Roeser Road at 23rd Avenue Basin - water year peaks Volume (acre-feet) 40 35 30 25 20 15 10 5 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 673 2020 Water Year 2025 WY2018 Events Date of Peak 07/09/2018 07/11/2018 08/02/2018 08/10/2018 Peak Gage Height (feet) 2.36 0.81 1.24 1.59 Peak Volume (ac-ft) 26.8 9.2 14.1 18.0 Percent Spillway Capacity 19.6 6.8 10.4 13.2 Hydrograph of peak WY 2018 impoundment event, 07/09/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 674 Roeser Road at 23rd Avenue Basin, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 675 Roeser Road at 23rd Avenue Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 1 3 4 5 6 7 8 9 1 2 10 1 11 2 1 12 1 13 14 3 15 1 2 16 1 17 18 19 20 21 22 1 23 2 24 1 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 9 8 0 0 0 0 27 18 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 27 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 676 Roeser Road at 23rd Avenue Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 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 0.3 0.3 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 0.3 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 0.3 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 MAX 0.2 0.2 0.2 0.8 0.7 0.2 0.2 0.2 0.2 2.4 1.6 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.20 MAX 2.36 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 677 Saddleback FRS, ID #5113 Site Data LOCATION Located south of I-10 along Courthouse Road DRAINAGE AREA 29.6 mi2 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 STREAMGAGE INSTALLATION DATE 12/16/1988 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 12/16/1988 - Current LENGTH OF AVAILABLE POR DATA 2.79 Years | 10,881 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 3 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,178.93 feet NAVD 1988 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 2018 Page 678 Watershed Map Saddleback FRS - water year peaks Volume (acre-feet) 120 100 80 60 40 20 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 679 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 680 Percent Spillway Capacity Saddleback FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 681 Saddleback FRS, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 682 Saddleback FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.30 MAX 0.30 MIN 0.30 FCDMC Annual Surface Water Report, Water Year 2018 Page 683 Salt River below Granite Reef Dam, ID #4583 Site Data LOCATION Located about 1/2 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 STREAMGAGE INSTALLATION DATE 04/02/2012 - WY 2012 AVAILABLE PERIOD OF RECORD (POR) 04/02/2012 - Current LENGTH OF AVAILABLE POR DATA 6.50 Years | 2,373 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 4.25 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,276.00 feet NAVD88 POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 22,641 cfs | 16.32 feet | 03/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 684 Watershed Map Salt River below Granite Reef - water year peaks Discharge (cfs) 25,000 20,000 15,000 10,000 5,000 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 685 2015 Water Year 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/14/2018 8.40 2,467 Hydrograph of peak WY 2018 flow event, 08/14/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 686 Salt River below Granite Reef Dam, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 56 55 83 22 30 45 49 2 56 59 85 30 41 50 3 26 60 65 83 30 40 51 4 44 62 67 83 30 41 55 5 42 74 62 87 28 42 52 6 42 77 61 83 27 41 49 7 38 68 59 85 27 43 45 8 40 68 61 83 25 38 49 9 --42 71 63 83 217 98 49 10 --49 65 57 80 16 44 49 11 65 74 60 74 16 565 49 12 65 65 62 80 24 15 50 13 73 65 62 85 24 20 50 14 81 62 63 88 27 22 122 50 15 85 54 69 93 25 24 90 52 16 77 50 69 91 25 27 50 17 81 53 75 91 33 33 51 18 89 55 75 91 31 37 54 19 77 57 71 91 29 42 50 20 77 54 73 91 32 41 54 21 77 57 75 93 34 45 57 22 89 57 74 93 34 44 57 23 89 56 78 96 37 41 59 24 59 57 76 94 35 40 55 25 44 57 74 93 33 43 11 61 26 53 66 80 92 30 41 15 66 27 53 62 76 88 31 45 28 67 28 56 62 76 93 32 43 30 66 29 --59 78 93 35 41 36 70 30 --55 81 93 32 41 41 70 31 ----53 --91 --45 46 -------------------------------------------------------------------------------TOTAL 0 0 0 0 1618 1890 2054 2726 621 1190 1458 1641 MEAN 0 0 0 0 58 61 68 88 21 38 47 55 MAX 0 0 0 0 111 111 89 107 45 1291 2975 89 MIN 0 0 0 0 0 0 52 67 0 0 0 37 AC_FT 0 0 0 0 3208 3749 4075 5407 1233 2361 2892 3254 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 13199 MEAN 36 MAX 2975 MIN 0 AC_FT 26179 FCDMC Annual Surface Water Report, Water Year 2018 Page 687 Salt River at Val Vista Drive, ID #4548 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 STREAMGAGE INSTALLATION DATE 04/14/2011 - WY 2011 AVAILABLE PERIOD OF RECORD (POR) 04/14/2011 - Current LENGTH OF AVAILABLE POR DATA 7.47 Years | 2,727 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.40 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,240.00 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 21,048 cfs | 10.76 feet | 03/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 688 Watershed Map Salt River at Val Vista Drive - water year peaks Discharge (cfs) 25,000 20,000 15,000 10,000 5,000 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 689 2015 Water Year 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 690 Salt River at Val Vista Drive, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 691 Salt River at Priest Drive, ID #4523 Site Data LOCATION Located on the Priest Drive Bridge DRAINAGE AREA 13,223 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 STREAMGAGE INSTALLATION DATE 12/07/1993 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 12/07/1993 - Current LENGTH OF AVAILABLE POR DATA 24.82 Years | 9,064 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.60 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 692 Watershed Map Salt River at Priest Drive - water year peaks 90,000 Discharge (cfs) 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 693 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/13/2018 5.08 1,654 Hydrograph of peak WY 2018 flow event, 08/13/2018 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 2018 Page 694 Salt River at Priest Drive, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 10 181 11 613 12 13 362 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 1157 0 MEAN --0 --0 0 0 0 ----0 37 0 MAX --0 --0 0 0 0 ----0 2868 0 MIN ------------------------AC_FT --0 --0 0 0 0 ----0 2294 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1157 MEAN 3 MAX 2868 MIN --- AC_FT 2294 See USGS Water‐Data Report AZ‐18‐1 for official data for this site. FCDMC Annual Surface Water Report, Water Year 2018 Page 695 Salt River at 7th Avenue, ID #4763 Site Data LOCATION Located on the 7th Avenue Bridge DRAINAGE AREA 13,223 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 STREAMGAGE INSTALLATION DATE 01/25/2012 - WY 2012 AVAILABLE PERIOD OF RECORD (POR) 01/25/2012 - Current LENGTH OF AVAILABLE POR DATA DATA 6.68 Years | 2,441 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 12.27 feet | 12,712 cfs | 03/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 696 Watershed Map Salt River at 7th Avenue - water year peaks 14,000 Discharge (cfs) 12,000 10,000 8,000 6,000 4,000 2,000 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 697 2015 Water Year 2020 WY2018 Events Date of Peak 07/09/2018 08/11/2018 Peak Gage Height 5.22 5.69 Peak Discharge (cfs) 37 45 Hydrograph of peak WY 2018 flow event, Hydrograph not included due to very low peak Q. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 698 Salt River at 7th Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 5 10 11 15 12 13 14 15 16 17 --18 19 20 21 22 23 1 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 5 17 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 37 45 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 10 34 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 22 MEAN 0 MAX 45 MIN 0 AC_FT 44 FCDMC Annual Surface Water Report, Water Year 2018 Page 699 Salt River at 51st Avenue, ID #4753 Site Data LOCATION Located at the 51st Avenue crossing of the Salt River DRAINAGE AREA 13,425 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Lower ACDC SECTION/TOWNSHIP/RANGE S29 T1N R2E LATITUDE N 33° 24' 15.7" | +33.40435 LONGITUDE W 112° 10' 07.4" | -112.16871 STREAMGAGE INSTALLATION DATE 04/27/2011 - WY 2011 AVAILABLE PERIOD OF RECORD (POR) 04/27/2011 - Current LENGTH OF AVAILABLE POR DATA DATA 7.43 Years | 2,714 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.60 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,050.00 feet NGVD 1929 POINT OF ZERO FLOW Undetermined EXTREME FOR PERIOD OF RECORD 11,376 cfs | 10.50 feet GH | 03/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 700 Watershed Map Salt River at 51st Avenue - water year peaks 12,000 Discharge (cfs) 10,000 8,000 6,000 4,000 2,000 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 701 2015 Water Year 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/02/2018 3.10 163 Hydrograph of peak WY 2018 flow event, 08/02/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 702 Salt River at 51st Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 2 3 4 5 6 7 8 9 --10 --11 --12 --13 --14 --15 --16 --17 18 19 20 --21 --22 ----23 --24 25 --26 --27 ----28 --29 ------30 ----31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 2 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 163 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 5 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 2 MEAN 0 MAX 163 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2018 Page 703 Salt River at 67th Avenue, ID #4758 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 STREAMGAGE INSTALLATION DATE 07/14/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 07/14/2008 - Current LENGTH OF AVAILABLE POR DATA 10.21 Years | 3,731 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 17,847 cfs | 9.43 feet GH | 01/22/2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 704 Watershed Map Discharge (cfs) Salt River at 67th Avenue - water year peak 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 705 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event No runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 706 Salt River at 67th Avenue, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 707 Sand Tank Wash at I-8, ID #6933 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 STREAMGAGE INSTALLATION DATE 05/31/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 05/31/2001 - Current LENGTH OF AVAILABLE POR DATA 17.34 Years | 6,332 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.30 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 760.48 feet NAVD 1988 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,866 cfs | 4.75 feet | 08/26/2013 FCDMC Annual Surface Water Report, Water Year 2018 Page 708 Watershed Map Discharge (cfs) Sand Tank Wash at I-8 - water year peaks 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 709 2010 Water Year 2015 2020 WY2018 Events Date of Peak 09/03/2018 09/19/2018 Peak Gage Height (feet) 2.18 3.47 Peak Discharge (cfs) 280 970 Hydrograph of peak WY 2018 flow event, 09/19/2018 Flood Flow Frequency Flood Flow Frequency N=19, HEC-WRC computation (based on 19 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 650 1,360 1,900 2,450 3,180 3,730 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 710 Sand Tank Wash at I-8, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 110 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 0 113 MEAN 0 0 0 0 0 0 0 0 0 0 0 4 MAX 0 0 0 0 0 0 0 0 0 0 0 970 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 0 224 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 113 MEAN 0 MAX 970 MIN 0 AC_FT 224 FCDMC Annual Surface Water Report, Water Year 2018 Page 711 Santa Cruz River at SR84, ID #0788 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 STREAMGAGE INSTALLATION DATE 03/16/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 03/16/1994 - Current LENGTH OF AVAILABLE POR DATA 24.54 Years | 8,965 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,346.06 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 2018 Page 712 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 713 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 08/12/2018 1.28 75 Hydrograph of peak WY 2018 flow event, 08/12/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 113 311 528 818 1,340 1,860 FCDMC Annual Surface Water Report, Water Year 2018 Page 714 Santa Cruz River at SR84, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 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 5 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 75 1 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 10 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 5 MEAN 0 MAX 75 MIN 0 AC_FT 11 FCDMC Annual Surface Water Report, Water Year 2018 Page 715 Sauceda Wash, ID #6923 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 STREAMGAGE INSTALLATION DATE 02/28/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 02/28/1990 - Current LENGTH OF AVAILABLE POR DATA 28.59 Years | 10,442 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.14 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 842.01 feet NAVD 1988 POINT OF ZERO FLOW 1.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,698 cfs | 5.70 feet GH | 08/13/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 716 Watershed Map Sauceda Wash - water year peaks 3,000 Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 717 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/10/2018 08/23/2018 09/19/2018 Peak Gage Height (feet) 1.88 2.42 4.82 Peak Discharge (cfs) 151 375 1,952 Hydrograph of peak WY 2018 flow event, 09/19/2018 Flood Flow Frequency Flood Flow Frequency N=46, HEC-WRC computation (based on 46 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 408 1,230 2,100 3,210 5,070 6,790 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 718 Sauceda Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 12 11 12 13 14 15 16 17 18 19 171 20 9 21 22 23 13 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 12 13 180 MEAN 0 0 0 0 0 0 0 0 0 0 0 6 MAX 0 0 0 0 0 0 0 0 0 151 375 1952 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 23 26 356 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 204 MEAN 1 MAX 1952 MIN 0 AC_FT 406 FCDMC Annual Surface Water Report, Water Year 2018 Page 719 Scatter Wash, ID #5543 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 STREAMGAGE INSTALLATION DATE 09/18/1996 - WY 1996 AVAILABLE PERIOD OF RECORD (POR) 09/18/1996 - Current LENGTH OF AVAILABLE POR DATA 22.03 Years | 8,048 Days DATA GAPS IN POR 07/23/2008 - 11/18/2008 STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,329.78 feet M.S.L. POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,784 cfs | 3.42 feet | 07/25/2007 FCDMC Annual Surface Water Report, Water Year 2018 Page 720 Watershed Map Discharge (cfs) Scatter Wash - water year peaks 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 721 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 01/10/2018 07/09/2018 07/11/2018 07/30/2018 Peak Gage Height (feet) 0.79 0.74 0.67 0.67 Peak Discharge (cfs) 16 16 14 14 Hydrograph of peak WY 2018 flow event, 01/10/2018 Flood Flow Frequency Flood Flow Frequency N=22, HEC-WRC computation (based on 22 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 398 1,070 1,670 2,330 3,270 4,010 NOTE(1): These results are based on very limited data. 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 2018 Page 722 Scatter Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 1 4 10 4 5 11 4 12 10 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --2 31 --------3 -------------------------------------------------------------------------------TOTAL 0 0 0 4 0 0 0 0 0 28 0 0 MEAN 0 0 0 0 0 0 0 0 0 1 0 0 MAX 0 0 0 16 0 0 0 0 0 16 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 8 0 0 0 0 0 56 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 32 MEAN 0 MAX 16 MIN 0 AC_FT 64 FCDMC Annual Surface Water Report, Water Year 2018 Page 723 Seven Springs Wash, ID #4963 Site Data LOCATION On Seven Springs Road near Forest Road 254 DRAINAGE AREA 7.9 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 STREAMGAGE INSTALLATION DATE 03/12/2002 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 03/12/2002 - Current LENGTH OF AVAILABLE POR DATA 16.56 Years | 6,047 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.10 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 3,481.67 feet NAVD 1988 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 2018 Page 724 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 725 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/14/2018 Peak Gage Height (feet) 2.15 2.99 Peak Discharge (cfs) 84 233 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 268 1,480 3,570 7,290 16,200 27,300 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 726 Seven Springs Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 10 11 12 13 14 4 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 5 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 233 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 9 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 5 MEAN 0 MAX 233 MIN 0 AC_FT 9 FCDMC Annual Surface Water Report, Water Year 2018 Page 727 Signal Butte FRS, ID #6628 Site Data LOCATION Located north of Brown Road between Meridian and Signal Butte Roads DRAINAGE AREA 16.4 mi2 STREAM 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 STREAMGAGE INSTALLATION DATE 11/10/1987 - WY 1988 AVAILABLE PERIOD OF RECORD (POR) 11/10/1987 - Current LENGTH OF AVAILABLE POR DATA 30.89 Years | 11,283 Days DATA GAPS IN POR None STAGE GAGE ELEVATION -0.25 feet Gage Height STAFF GAGES 8 ZERO GAGE HEIGHT ELEVATION 1,687.39 feet NAVD 1988 POINT OF ZERO FLOW (GATED OUTLET) 0.0 feet Gage Height POINT OF ZERO FLOW (UNGATED OUTLET) 15.4 feet Gage Height SPILLWAY ELEVATION 26.9 feet Gage Height TOP OF DAM ELEVATION 37.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 728 Watershed Map Signal Butte FRS - water year peaks Volume (acre-feet) 350 300 250 200 150 100 50 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 729 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/30/2018 08/11/2018 08/25/2018 Peak Gage Height (feet) 5.56 6.10 7.27 Peak Volume (ac-ft) 38.0 48.0 72.0 Percent Spillway Capacity 2.4 2.9 4.4 Hydrograph of peak WY 2018 impoundment event, 08/25/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 730 Signal Butte FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 731 Signal Butte FRS, volume data Volume, in acre feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 23 31 2 18 29 3 15 27 4 12 25 5 11 23 6 9 21 7 7 19 8 6 19 9 5 18 10 29 16 11 46 15 12 41 12 13 34 11 14 30 10 15 26 10 16 23 9 17 21 9 18 19 7 19 18 6 20 16 4 21 14 3 22 12 3 23 15 3 24 65 1 25 66 26 57 27 50 28 45 29 --39 30 --6 36 31 --------30 33 -------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 1 27 11 MAX 0 0 0 0 0 0 0 0 0 38 72 32 MIN 0 0 0 0 0 0 0 0 0 0 4 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 3 MAX 72 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 732 Signal Butte FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 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 4.5 5.1 2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.1 4.9 3 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.8 4.8 4 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.5 4.7 5 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.4 4.5 6 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.1 4.3 7 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 2.9 4.2 8 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 2.8 4.1 9 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 2.6 4.0 10 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.9 3.9 11 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 6.0 3.7 12 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5.7 3.5 13 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5.3 3.4 14 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5.0 3.3 15 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.7 3.2 16 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.5 3.2 17 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.3 3.1 18 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.1 2.9 19 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 4.0 2.8 20 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.8 2.5 21 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.7 2.3 22 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.5 2.2 23 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 3.7 2.1 24 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 7.0 0.6 25 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 7.0 -0.1 26 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 6.6 -0.1 27 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 6.2 -0.1 28 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5.9 -0.2 29 -0.2 -0.2 -0.2 -0.2 --- -0.2 -0.2 -0.2 -0.2 -0.2 5.6 -0.2 30 -0.2 -0.2 -0.2 -0.2 --- -0.2 -0.2 -0.2 -0.2 0.7 5.4 -0.2 31 -0.2 --- -0.2 -0.2 --- -0.2 --- -0.2 --5.0 5.2 -------------------------------------------------------------------------------MEAN -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.1 4.6 2.7 MAX -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 5.6 7.3 5.1 MIN -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 -0.2 2.4 -0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.42 MAX 7.27 MIN -0.25 FCDMC Annual Surface Water Report, Water Year 2018 Page 733 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 Stream 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 STREAMGAGE INSTALLATION DATE 12/22/2016 - WY 2017 AVAILABLE PERIOD OF RECORD (POR) 12/22/2016 - Current LENGTH OF AVAILABLE POR DATA 1.77 Years | 648 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.65 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,460.50 feet NAVD88 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 312 cfs | 4.46 feet Gage Height | 07/24/2016 FCDMC Annual Surface Water Report, Water Year 2018 Page 734 Watershed Map Siphon Draw Wash - water year peaks 400 Discharge (cfs) 350 300 250 200 150 100 50 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 735 2020 Water Year 2025 WY2018 Events Date of Peak 08/10/2018 08/24/2018 Peak Gage Height 3.80 1.62 Peak Discharge (cfs) 291 67 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 736 Siphon Draw Wash at Signal Butte Road, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 76 11 3 12 13 14 15 16 17 18 19 20 21 22 23 3 24 15 25 9 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 105 0 MEAN 0 0 0 0 0 0 0 0 0 0 3 0 MAX 0 0 0 0 0 0 0 0 0 0 291 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 0 209 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 105 MEAN 0 MAX 291 MIN 0 AC_FT 209 FCDMC Annual Surface Water Report, Water Year 2018 Page 737 Skunk Creek near New River, ID #5588 Site Data LOCATION Located south of the Fig Spring Road crossing of Skunk Creek DRAINAGE AREA 4 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 STREAMGAGE INSTALLATION DATE 06/21/1995 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 06/21/1995 - Current LENGTH OF AVAILABLE POR DATA 23.28 Years | 8,503 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.14 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,188.04 feet NAVD 1988 POINT OF ZERO FLOW 0.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 2,000 cfs | 4.29 feet | 01/21/2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 738 Watershed Map Skunk Creek near New River - water year peaks Discharge (cfs) 2,500 2,000 1,500 1,000 500 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 739 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 07/30/2018 1.61 137 Hydrograph of peak WY 2018 flow event, 07/30/2018 Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 205 685 1,200 1,830 2,850 3,750 50-year 100-year 2,500 3,650 NOTE(1): These results are based on very limited data. Flood Flow Frequency FEMA 2-year 5-year 10-year 1,730 FCDMC Annual Surface Water Report, Water Year 2018 Page 740 20-year Skunk Creek near New River, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --2 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 2 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 137 0 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 5 0 1 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 3 MEAN 0 MAX 137 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2018 Page 741 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' 34.2" | +33.84283 LONGITUDE W 112° 05' 31.9" | -112.09221 STREAMGAGE INSTALLATION DATE 07/23/2015 - WY 2015 AVAILABLE PERIOD OF RECORD (POR) 07/23/2015 - Current LENGTH OF AVAILABLE POR DATA 3.19 Years | 1,166 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.02 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,593 cfs | 3.88 feet GH | 10/20/2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 742 Watershed Map Skunk Creek at Desert Hills Drive - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 743 2020 Water Year 2025 WY2018 Events Date of Peak 07/14/2018 07/30/2018 Peak Gage Height 1.44 1.72 Peak Discharge (cfs) 29 92 Hydrograph of peak WY 2018 flow event, 07/30/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 744 Skunk Creek at Desert Hills Drive, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --2 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 3 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 92 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 6 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 3 MEAN 0 MAX 92 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2018 Page 745 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 STREAMGAGE INSTALLATION DATE 08/19/2015 - WY 2015 AVAILABLE PERIOD OF RECORD (POR) 08/19/2015 - Current LENGTH OF AVAILABLE POR DATA 3.12 Years | 1,139 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.49 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,672.86 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,803 cfs | 4.17 feet GH | 01/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 746 Watershed Map Skunk Creek at Carefree Highway - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 747 2020 Water Year 2025 WY2018 Events Date of Peak 07/14/2018 07/30/2018 (20:16) 07/30/2018 (22:39) 08/15/2018 Peak Gage Height 2.98 2.18 3.03 2.36 Peak Discharge (cfs) 586 234 616 303 Hydrograph of peak WY 2018 flow event, 07/30/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 748 Skunk Creek at Carefree Highway, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 14 109 15 18 62 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --43 31 --------113 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 283 62 0 MEAN 0 0 0 0 0 0 0 0 0 9 2 0 MAX 0 0 0 0 0 0 0 0 0 616 303 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 561 124 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 345 MEAN 1 MAX 616 MIN 0 AC_FT 684 FCDMC Annual Surface Water Report, Water Year 2018 Page 749 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 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 STREAMGAGE INSTALLATION DATE 01/11/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 01/11/2016 - Current LENGTH OF AVAILABLE POR DATA 2.72 Years | 994 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 2.20 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,543.52 feet NAVD88 POINT OF ZERO FLOW 1.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,585 cfs | 4.25 feet GH | 01/01/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 750 Watershed Map Discharge (cfs) Skunk Creek at Dixileta Drive - water year peaks 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 751 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No recorded runoff during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 752 Skunk Creek at Dixileta Drive, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 27 156 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 156 0 MEAN 0 0 0 0 0 0 0 0 0 0 5 0 MAX 0 0 0 0 0 0 0 0 0 0 622 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 0 309 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 156 MEAN 0 MAX 622 MIN 0 AC_FT 309 FCDMC Annual Surface Water Report, Water Year 2018 Page 753 Skunk Creek at I-17, ID #5568 Site Data LOCATION Located south of Jomax Road on I-17 DRAINAGE AREA 64.7 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 STREAMGAGE INSTALLATION DATE 10/26/1989 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 08/11/1990 - Current LENGTH OF AVAILABLE POR DATA 28.14 Years | 10,278 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.23 feet Gage Height STAFF GAGES 2 CREST STAGE GAGES 4 ZERO GAGE HEIGHT ELEVATION 1,473.97 feet NAVD88 POINT OF ZERO FLOW 1.0 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 2018 Page 754 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 2018 Page 755 2005 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No recorded runoff during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=59, HEC-WRC computation (based on 59 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 843 3,610 6,990 11,500 19,100 26,100 NOTE(1): These results are based on available data. FCDMC Annual Surface Water Report, Water Year 2018 Page 756 Skunk Creek at I-17, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 25 26 27 2 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 1 2 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 6 7 7 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 3 3 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 3 MEAN 0 MAX 7 MIN 0 AC_FT 6 FCDMC Annual Surface Water Report, Water Year 2018 Page 757 Skunk Tank Wash, ID #4888 Site Data LOCATION Located on 7th Avenue about 1/4 mile south of Desert Hills Drive DRAINAGE AREA 1.5 mi2 STREAM TYPE Culvert 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 STREAMGAGE INSTALLATION DATE 03/02/2006 - WY 2006 AVAILABLE PERIOD OF RECORD (POR) 03/02/2006 - Current LENGTH OF AVAILABLE POR DATA 12.58 Years | 4,596 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.50 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 277 cfs | 7.20 feet | 08/19/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 758 Watershed Map Skunk Tank Wash - water year peaks 300 Discharge (cfs) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 759 2020 WY2018 Events Date of Peak 07/14/2018 07/30/2018 Peak Gage Height (feet) 6.02 3.52 Peak Discharge (cfs) 209 85 Hydrograph of peak WY 2018 flow event, 07/14/2018 Flood Flow Frequency Flood Flow Frequency N=13, HEC-WRC computation (based on 13 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 70 317 638 1,090 1,900 2,680 FCDMC Annual Surface Water Report, Water Year 2018 Page 760 Skunk Tank Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 6 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --1 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 7 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 209 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 15 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 7 MEAN 0 MAX 209 MIN 0 AC_FT 15 FCDMC Annual Surface Water Report, Water Year 2018 Page 761 Sols Wash at SR71, ID #5276 Site Data LOCATION Located 1/2 mile west of US93 on SR71 DRAINAGE AREA 0.89 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 STREAMGAGE INSTALLATION DATE 09/12/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 09/12/2001 - Current LENGTH OF AVAILABLE POR DATA 17.05 Years | 6,228 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.30 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 2,737.74 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 2018 Page 762 Watershed Map Sols Wash at SR71 - water year peaks 700 Discharge (cfs) 600 500 400 300 200 100 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 763 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 06/16/2018 2.59 608 Hydrograph of peak WY 2018 flow event, 06/16/2018 Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 179 322 434 554 725 866 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 764 Sols Wash at SR71, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 20 17 18 19 20 21 22 23 24 25 26 27 28 29 ----30 ----31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 20 0 0 0 MEAN 0 0 0 0 0 0 0 0 1 0 0 0 MAX 0 0 0 0 0 0 0 0 608 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 40 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 20 MEAN 0 MAX 608 MIN 0 AC_FT 40 FCDMC Annual Surface Water Report, Water Year 2018 Page 765 Sols Tributary at US93, ID #7028 Site Data LOCATION Located west of US93 near mile post 191 DRAINAGE AREA 0.15 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 STREAMGAGE INSTALLATION DATE 01/30/2002 - WY 2002 AVAILABLE PERIOD OF RECORD (POR) 01/30/2002 - Current LENGTH OF AVAILABLE POR DATA 16.67 Years | 6,088 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.07 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,580.00 feet M.S.L. 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 2018 Page 766 Watershed Map Sols Wash Tributary at US93 - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 767 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event There was no runoff recorded by this gage in Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 768 Sols Tributary near US93, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 769 Sols Wash near Matthie, ID #7043 Site Data LOCATION Located along the railroad about 1 mile west of Vulture Mine Road DRAINAGE AREA 121 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 STREAMGAGE INSTALLATION DATE 08/04/1995 - WY 1995 AVAILABLE PERIOD OF RECORD (POR) 08/04/1995 - Current LENGTH OF AVAILABLE POR DATA 23.16 Years | 8,459 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.36 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,230.64 feet NAVD 1988 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 2018 Page 770 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 771 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 06/16/2018 08/17/2018 08/25/2018 Peak Gage Height (feet) 0.62 0.88 1.23 Peak Discharge (cfs) 160 204 281 Hydrograph of peak WY 2018 flow event, 08/25/2018 Flood Flow Frequency Flood Flow Frequency N=24, HEC-WRC computation (based on 24 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 678 2,290 4,440 7,780 14,900 23,100 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 772 Sols Wash near Matthie, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 6 17 9 18 19 20 --21 22 23 24 25 68 26 20 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 6 0 96 0 MEAN 0 0 0 0 0 0 0 0 0 0 3 0 MAX 0 0 0 0 0 0 0 0 160 0 281 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 11 0 191 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 102 MEAN 0 MAX 281 MIN 0 AC_FT 202 FCDMC Annual Surface Water Report, Water Year 2018 Page 773 Sonoqui Wash near Hawes Road, ID #36307 Site Data LOCATION Located near Hawes and Riggs Roads DRAINAGE AREA 15.0 mi2 STREAM TYPE Channelized Natural Stream JURISDICTION Queen Creek, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S29 T2S R7E LATITUDE N 33° 13' 26.5" | +33.22402 LONGITUDE W 111° 39' 11.8" | -111.65327 STREAMGAGE INSTALLATION DATE 12/21/2016 - WY 2017 AVAILABLE PERIOD OF RECORD (POR) 12/21/2016 - Current LENGTH OF AVAILABLE POR DATA 1.78 Years | 649 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.40 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,373.00 NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,064 cfs | 5.29 feet Gage Height | 07/24/2016 FCDMC Annual Surface Water Report, Water Year 2018 Page 774 Watershed Map Sonoqui Wash near Hawes Road - water year peaks 1,200 Discharge (cfs) 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 775 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 776 Siphon Draw Wash at Signal Butte Road, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 777 Sonoran Wash, ID #65907 Site Data LOCATION Located southeast of Paloma Pkwy and Sonoran Desert Drive DRAINAGE AREA 7.81 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 STREAMGAGE INSTALLATION DATE 10/13/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 10/13/2015 - Current LENGTH OF AVAILABLE POR DATA 2.97 Years | 1,084 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.34 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.3 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,192 cfs | 4.30 feet GH | 12/22/2016 FCDMC Annual Surface Water Report, Water Year 2018 Page 778 Watershed Map Sonoran Wash - water year peaks 1,400 Discharge (cfs) 1,200 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 779 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/11/2018 2.63 425 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 780 Sonoran Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 38 3 38 4 40 5 38 6 38 7 38 8 38 9 58 10 62 11 61 11 12 61 2 13 61 14 61 15 61 16 81 17 61 18 61 19 61 20 61 21 81 22 61 23 61 24 61 25 61 26 61 27 61 28 61 29 --41 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 1566 0 13 0 0 MEAN 0 0 0 0 0 0 0 51 0 0 0 0 MAX 0 0 0 0 0 0 0 83 0 425 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 3106 0 25 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1579 MEAN 4 MAX 425 MIN 0 AC_FT 3131 FCDMC Annual Surface Water Report, Water Year 2018 Page 781 South Mountain Fan, ID #6563 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 STREAMGAGE INSTALLATION DATE 06/09/1993 - WY 1993 AVAILABLE PERIOD OF RECORD (POR) 06/09/1993 - Current LENGTH OF AVAILABLE POR DATA 25.31 Years | 9,245 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,276.74 feet M.S.L. POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,586 cfs | 3.85 feet | 08/12/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 782 Watershed Map South Mountain Fan - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 783 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 07/09/2018 1.97 119 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency Flood Flow Frequency HEC-1 Analysis 2-year 5-year 10-year 20-year 50-year 100-year 300 650 990 1,500 2,000 2,400 FCDMC Annual Surface Water Report, Water Year 2018 Page 784 South Mountain Fan, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 3 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 3 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 119 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 5 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 3 MEAN 0 MAX 119 MIN 0 AC_FT 5 FCDMC Annual Surface Water Report, Water Year 2018 Page 785 Spookhill FRS, ID #4563 Site Data LOCATION Located near Loop 202 and Power Road DRAINAGE AREA 13.6 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 STREAMGAGE INSTALLATION DATE 03/13/1984 - WY 1984 AVAILABLE POR 12/30/1987 - Current LENGTH OF AVAILABLE POR DATA 30.75 Years | 11,233 Days DATA GAPS IN POR 05/02/2008 - 06/22/2008 STAGE GAGE ELEVATION 0.28 Feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,568.10 Feet NAVD 1988 NORMAL DRAWDOWN RATE -0.12 feet per hour PZF (CONTROLLED OUTLET) 0.0 Feet Gage Height PZF (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 2018 Page 786 Watershed Map Spookhill FRS - water year peaks Volume (acre-feet) 250 200 150 100 50 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 787 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/31/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 2.15 1.81 2.75 7.26 Peak Volume (ac-ft) 1.9 0.7 7.1 220.1 Percent Spillway Capacity 0.1 0.0 0.3 8.1 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 788 Spookhill FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 2 8 28 9 16 10 50 11 8 49 12 27 45 13 25 40 14 22 32 15 21 6 16 6 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 --------12 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 121 267 0 MEAN 0 0 0 0 0 0 0 0 0 4 9 0 MAX 0 0 0 0 0 0 0 0 0 28 52 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 240 529 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 388 MEAN 1 MAX 52 MIN 0 AC_FT 770 FCDMC Annual Surface Water Report, Water Year 2018 Page 789 Spookhill FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 3 9 10 182 11 146 12 1 87 13 1 42 14 9 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 15 0 MAX 0 0 0 0 0 0 0 0 0 2 220 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 220 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 790 Spookhill FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2.2 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.2 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6.8 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.8 6.4 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2.0 5.4 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.7 4.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.4 2.7 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.2 0.8 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.6 0.4 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 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 --1.0 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 1.2 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2.1 7.3 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.38 MAX 7.26 MIN 0.28 FCDMC Annual Surface Water Report, Water Year 2018 Page 791 Spookhill FRS at McDowell Road, ID #6637 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 STREAMGAGE INSTALLATION DATE 06/19/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 06/19/2008 - Current LENGTH OF AVAILABLE POR DATA 10.28 Years | 3,756 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES None ZERO GAGE HEIGHT ELEVATION 1,569.50 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE PRINCIPAL OUTLET ELEVATION -1.40 feet Gage Height UNGATED PRINICPAL OUTLET INLET ELEV 8.00 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION 12.60 feet Gage Height SPILLWAY ELEVATION 14.40 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 792 Watershed Map Spookhill FRS at McDowell Road - water year peaks Volume (acre-feet) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 793 2020 WY2018 Events Date of Peak 07/12/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 0.50 1.10 5.61 Peak Volume (ac-ft) 1.0 5.0 192.3 Percent Spillway Capacity 0.0 0.1 4.8 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 794 Spookhill FRS at McDowell Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 1 3 4 5 6 7 2 8 27 9 9 10 49 11 5 48 12 14 44 13 3 39 14 31 15 11 16 3 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 22 264 0 MEAN 0 0 0 0 0 0 0 0 0 1 9 0 MAX 0 0 0 0 0 0 0 0 0 21 51 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 43 524 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 286 MEAN 1 MAX 51 MIN 0 AC_FT 567 FCDMC Annual Surface Water Report, Water Year 2018 Page 795 Spookhill FRS at McDowell Road, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 3 9 1 10 158 11 129 12 1 77 13 35 14 7 15 1 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 13 0 MAX 0 0 0 0 0 0 0 0 0 1 192 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 192 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 796 Spookhill FRS at McDowell Road, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.2 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 4.8 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.8 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 2.7 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 0.0 0.0 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --0.0 0.0 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.0 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 5.6 0.0 MIN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.05 MAX 5.61 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 797 Spookhill FRS at McKellips Road, ID #6638 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 STREAMGAGE INSTALLATION DATE 06/19/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 06/19/2008 - Current LENGTH OF AVAILABLE POR DATA 10.28 Years | 3,756 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES None ZERO GAGE HEIGHT ELEVATION 1,570.40 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE PRINCIPAL OUTLET ELEVATION -2.30 feet Gage Height UNGATED PRINCIPAL OUTLET INLET ELEV 7.10 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION 11.70 feet Gage Height SPILLWAY ELEVATION 13.50 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 798 Watershed Map Spookhill FRS at McKellips Road - water year peaks Volume (acre-feet) 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 799 2020 WY2018 Events Date of Peak 07/11/2018 08/07/2018 08/10/2018 Peak Gage Height (feet) 0.97 1.74 5.06 Peak Volume (ac-ft) 16.5 33.4 225.3 Percent Spillway Capacity 0.3 0.7 5.3 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 800 Spookhill FRS at McKellips Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 1 --5 1 --6 7 30 8 5 9 1 10 51 11 1 49 12 46 13 42 14 25 15 1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 4 0 0 0 0 0 0 0 0 1 223 0 MEAN 0 0 0 0 0 0 0 0 0 0 7 0 MAX 2 0 0 0 0 0 0 0 0 21 52 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 7 0 0 0 0 0 0 0 0 3 442 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 228 MEAN 1 MAX 52 MIN 0 AC_FT 452 FCDMC Annual Surface Water Report, Water Year 2018 Page 801 Spookhill FRS at McKellips Road, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 --3 --4 --5 --6 7 22 8 3 9 1 10 200 11 1 162 12 99 13 51 14 19 15 1 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 17 0 MAX 0 0 0 0 0 0 0 0 0 17 225 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 225 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 802 Spookhill FRS at McKellips Road, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 4 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 5 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 --0.2 6 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.2 0.2 8 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 0.2 9 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.2 10 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4.8 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 4.3 0.2 12 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3.4 0.2 13 0.0 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.2 0.2 14 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.1 0.2 15 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.7 0.2 MAX 0.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.0 5.1 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.29 MAX 5.06 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2018 Page 803 Spookhill FRS at Brown Road, ID #6693 Site Data 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 STREAMGAGE INSTALLATION DATE 06/04/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 06/04/2008 - Current LENGTH OF AVAILABLE POR DATA 10.32 Years | 3,771 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.27 feet Gage Height STAFF GAGES None ZERO GAGE HEIGHT ELEVATION 1,571.75 feet NAVD 1988 POINT OF ZERO FLOW 0.00 feet Gage Height DAM ELEVATIONS AS RELATED TO GAGE HEIGHT AT THIS SITE PRINCIPAL OUTLET ELEVATION -3.65 feet Gage Height UNGATED PRINCIPAL OUTLET INLET ELEV 5.75 feet Gage Height MINIMUM FREEWAY LEVEE ELEVATION 10.35 feet Gage Height SPILLWAY ELEVATION 12.15 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 804 Watershed Map Spookhill FRS at Brown Road - water year peaks Volume (acre-feet) 400 350 300 250 200 150 100 50 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 805 2020 WY2018 Events Date of Peak 07/30/2018 08/10/2018 08/24/2018 Peak Gage Height (feet) 0.75 4.74 0.67 Peak Volume (ac-ft) 48.4 338.8 45.6 Percent Spillway Capacity 1.2 7.3 1.0 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 806 Spookhill FRS at Brown Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 10 51 11 48 12 46 13 42 14 28 15 9 16 17 18 19 20 1 21 22 23 24 3 25 14 26 27 28 29 --30 --7 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 3 0 0 0 7 243 0 MEAN 0 0 0 0 0 0 0 0 0 0 8 0 MAX 0 0 0 0 0 6 0 0 0 43 56 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 6 0 0 0 13 481 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 252 MEAN 1 MAX 56 MIN 0 AC_FT 500 FCDMC Annual Surface Water Report, Water Year 2018 Page 807 Spookhill FRS at Brown Road, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2 10 195 11 139 12 82 13 44 14 24 15 8 16 17 18 19 20 21 22 23 24 3 25 13 26 27 28 29 --30 --6 31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 16 0 MAX 0 0 0 0 0 0 0 0 0 48 339 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1 MAX 339 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 808 Spookhill FRS at Brown Road, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 10 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3.3 0.3 11 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2.6 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 1.6 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.7 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.3 MAX 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.8 4.7 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.29 MAX 4.74 MIN 0.27 FCDMC Annual Surface Water Report, Water Year 2018 Page 809 Stagecoach Wash, ID #4913 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 STREAMGAGE INSTALLATION DATE 06/13/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 06/13/2001 - Current LENGTH OF AVAILABE POR DATA 17.30 Years | 6,319 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.59 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,548.94 feet NAVD 1988 POINT OF ZERO FLOW 0.5 feet Gage Height EXTREME FOR PERIOD OF RECORD 802 cfs | 5.10 feet | 07/31/2007 FCDMC Annual Surface Water Report, Water Year 2018 Page 810 Watershed Map Stagecoach Wash - water year peaks 900 Discharge (cfs) 800 700 600 500 400 300 200 100 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 811 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) 08/23/2018 1.74 69 Hydrograph of peak WY 2018 flow event Flood Flow Frequency Flood Flow Frequency N=18, HEC-WRC computation (based on 18 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 16 66 145 287 639 1,110 FCDMC Annual Surface Water Report, Water Year 2018 Page 812 Stagecoach Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 1 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 69 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 2 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 1 MEAN 0 MAX 69 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2018 Page 813 Stoneridge Dam, ID #5968 Site Data LOCATION About 1/2 mile north of Shea Boulevard, west of Fountain Hills Boulevard DRAINAGE AREA 0.86 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 STREAMGAGE INSTALLATION DATE 12/11/1996 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 12/11/1996 - Current LENGTH OF AVAILABLE POR DATA 21.80 Years | 7,964 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.87 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,680.94 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 2018 Page 814 Watershed Map Volume (acre-feet) Stoneridge Dam - water year peaks 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 815 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/14/2018 07/30/2018 08/08/2018 08/10/2018 08/12/2018 Peak Gage Height (feet) 1.60 2.68 5.07 6.19 1.93 Peak Volume (ac-ft) 0.1 0.3 0.7 1.5 0.2 Percent Spillway Capacity 0.2 0.5 1.4 2.3 0.3 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 816 Stoneridge Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 2 9 --10 --3 11 1 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 1 7 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 23 51 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 1 15 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 8 MEAN 0 MAX 51 MIN 0 AC_FT 16 FCDMC Annual Surface Water Report, Water Year 2018 Page 817 Stoneridge Dam, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 1 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 818 Stoneridge Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 1.4 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 10 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.5 1.3 11 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 12 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 13 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 14 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 15 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 16 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 17 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 18 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 19 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 20 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 21 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 22 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 23 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 24 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 25 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 26 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 27 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 28 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 29 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 30 1.3 1.3 1.3 1.3 --1.3 1.3 1.3 1.3 1.3 1.3 1.3 31 1.3 --1.3 1.3 --1.3 --1.3 --1.3 1.3 -------------------------------------------------------------------------------MEAN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 MAX 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 2.7 6.2 1.3 MIN 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.30 MAX 6.19 MIN 1.30 FCDMC Annual Surface Water Report, Water Year 2018 Page 819 Sun Valley Parkway at Northern Avenue, ID #5303 Site Data LOCATION On Sun Valley Parkway near the Northern Avenue alignment DRAINAGE AREA 1.4 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 STREAMGAGE INSTALLATION DATE 08/02/2005 - WY 2005 AVAILABLE PERIOD OF RECORD (POR) 08/02/2005 - Current LENGTH OF AVAILABLE POR DATA 13.16 Years | 4,808 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.15 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,394.57 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 214 cfs | 0.90 feet | 09/10/2013 FCDMC Annual Surface Water Report, Water Year 2018 Page 820 Watershed Map Sun Valley Parkway at Northern Avenue - water year peaks 900 Discharge (cfs) 800 700 600 500 400 300 200 100 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 821 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/11/2018 0.39 50 Hydrograph of peak WY 2018 flow event Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 822 Sun Valley Parkway at Northern, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2 12 13 14 15 16 17 1 18 3 1 19 1 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 4 3 2 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 63 3 50 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 8 6 3 1 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 9 MEAN 0 MAX 63 MIN 0 AC_FT 18 FCDMC Annual Surface Water Report, Water Year 2018 Page 823 Sunnycove FRS, ID #5248 Site Data LOCATION In Wickenburg south of US 60 near the cemetery DRAINAGE AREA 1.35 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 STREAMGAGE INSTALLATION DATE 07/01/1986 - WY 1986 AVAILABLE PERIOD OF RECORD (POR) 12/16/1988 - Current LENGTH OF AVAILABLE POR DATA 29.79 Years | 10,881 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.00 feet Gage Height STAFF GAGES 10 ZERO GAGE HEIGHT ELEVATION 2,135.10 feet NAVD 1988 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 2018 Page 824 Watershed Map Sunnycove FRS - water year peaks Volume (acre-feet) 160 140 120 100 80 60 40 20 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 825 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/12/2018 07/28/2018 08/16/2018 08/25/2018 Peak Gage Height (feet) 7.92 1.47 2.01 1.66 Peak Volume (ac-ft) 4.0 0.2 0.2 0.2 Percent Spillway Capacity 1.9 0.0 0.1 0.1 Hydrograph of peak WY 2018 impoundment event, 07/12/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 826 Sunnycove FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 827 Sunnycove FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2 13 2 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 4 0 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 828 Sunnycove FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.1 1.0 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.9 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 0.7 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.3 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 0.0 6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.0 8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 11 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.6 0.0 0.0 13 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.8 0.0 0.0 14 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.4 0.0 0.0 15 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.2 0.0 0.0 16 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.8 0.0 17 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 1.8 0.0 18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 --1.8 0.0 19 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 1.6 0.0 20 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 0.0 21 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 0.0 22 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.0 23 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 24 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 25 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0 26 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 0.0 27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.4 0.0 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.4 0.0 29 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 1.4 1.4 0.0 30 0.0 0.0 0.0 0.0 --0.0 0.0 0.0 0.0 1.2 1.2 0.0 31 0.0 --0.0 0.0 --0.0 --0.0 --1.1 1.1 -------------------------------------------------------------------------------MEAN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 0.8 0.1 MAX 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.9 2.0 1.2 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 2018 MEAN 0.14 MAX 7.92 MIN 0.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 829 Sunridge Canyon Dam, ID #5973 Site Data LOCATION Near the Sunridge Canyon Golf Course DRAINAGE AREA 1.60 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 STREAMGAGE INSTALLATION DATE 02/04/1997 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 02/04/1997 - Current LENGTH OF AVAILABLE POR DATA 21.65 Years | 7,909 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.36 feet Gage Height STAFF 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 2018 Page 830 Watershed Map Sunridge Canyon Dam - water year peaks Volume (acre-feet) 0.5 0.4 0.3 0.2 0.1 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 831 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/14/2018 07/30/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 2.15 2.00 2.34 4.69 4.20 Peak Volume (ac-ft) 0.0 0.0 0.0 0.1 0.1 Percent Spillway Capacity 0.0 0.0 0.0 0.1 0.1 Hydrograph of peak WY 2018 impoundment event, 08/08/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 832 Sunridge Canyon Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 --2 --3 4 5 6 7 8 7 9 9 8 10 12 4 11 11 12 13 14 1 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --6 31 --------7 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 35 30 0 MEAN 0 0 0 0 0 0 0 0 0 1 1 0 MAX 0 0 0 0 0 0 0 0 0 35 85 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 70 59 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 65 MEAN 0 MAX 85 MIN 0 AC_FT 129 FCDMC Annual Surface Water Report, Water Year 2018 Page 833 Sunridge Canyon Dam, volume data Volume, in acre feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 834 Sunridge Canyon Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 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 --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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 4 1.2 1.2 1.2 1.2 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 1.4 1.2 9 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.4 1.3 1.2 10 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.5 1.3 1.2 11 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.5 1.2 12 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 13 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 14 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 15 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 16 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 17 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 18 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 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 1.2 20 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 21 1.2 1.2 1.2 1.2 1.2 1.2 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 1.2 23 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 24 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 25 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 26 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 27 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 28 1.2 1.2 1.2 1.2 1.2 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 1.4 1.2 1.2 31 1.2 --1.2 1.2 --1.2 --1.2 --1.4 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 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 2.3 4.7 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 2018 MEAN 1.20 MAX 4.69 MIN 1.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 835 Sunset FRS, ID #5233 Site Data LOCATION In Wickenburg near US 60 and Mariposa Drive DRAINAGE AREA 0.95 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 STREAMGAGE INSTALLATION DATE 02/12/1989 - WY 1989 AVAILABLE PERIOD OF RECORD (POR) 02/12/1989 - Current LENGTH OF AVAILABLE POR DATA 29.63 Years | 10,823 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES 7 ZERO GAGE HEIGHT ELEVATION 2,114.01 feet NAVD 1988 POINT OF ZERO FLOW (GATED ORIFICE) 0.0 feet Gage Height POINT OF ZERO FLOW (UNGATED ORIFICE) 8.75 feet Gage Height POINT OF ZERO FLOW (PRINCIPAL OUTLET 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 2018 Page 836 Watershed Map Sunset FRS - water year peaks Volume (acre-feet) 70 60 50 40 30 20 10 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 837 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 01/10/2018 07/11/2018 07/28/2018 08/16/2018 08/25/2018 Peak Gage Height (feet) 2.89 5.63 2.74 4.11 3.48 Peak Volume (ac-ft) 0.2 3.6 0.1 1.1 0.7 Percent Spillway Capacity 0.6 4.7 0.2 1.5 0.8 Hydrograph of peak WY 2018 impoundment event, 07/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 838 Sunset FRS, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 839 Sunset FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 12 2 13 1 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 4 1 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 840 Sunset FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 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 1.1 0.3 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.8 0.1 3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.4 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 10 0.1 0.1 0.1 2.7 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 11 0.1 0.1 0.1 2.4 0.1 0.1 0.1 0.1 0.1 1.3 0.1 0.1 12 0.1 0.1 0.1 2.0 0.1 0.1 0.1 0.1 0.1 4.9 0.1 0.1 13 0.1 0.1 0.1 1.8 0.1 0.1 0.1 0.1 0.1 3.7 0.1 0.1 14 0.1 0.1 0.1 1.5 0.1 0.1 0.1 0.1 0.1 2.7 0.1 0.1 15 0.1 0.1 0.1 1.3 0.1 0.1 0.1 0.1 0.1 2.3 0.1 0.1 16 0.1 0.1 0.1 1.1 0.1 0.1 0.1 0.1 0.1 2.0 1.6 0.1 17 0.1 0.1 0.1 0.9 0.1 0.1 0.1 0.1 0.1 1.6 2.9 0.1 18 0.1 0.1 0.1 0.7 0.1 0.1 0.1 0.1 0.1 1.4 2.4 0.1 19 0.1 0.1 0.1 0.3 0.1 0.1 0.1 0.1 0.1 1.1 1.8 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.9 1.4 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.7 1.2 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.5 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 1.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2.5 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2.0 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.5 1.6 0.1 29 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 2.2 1.3 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 1.7 1.0 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --1.4 0.7 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.5 0.1 0.1 0.1 0.1 0.1 1.0 0.8 0.1 MAX 0.1 0.1 0.1 2.9 0.1 0.1 0.1 0.1 0.1 5.6 4.1 0.5 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 2018 MEAN 0.27 MAX 5.63 MIN 0.10 FCDMC Annual Surface Water Report, Water Year 2018 Page 841 Sycamore Creek Fire, ID #5871/5873 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 STREAMGAGE INSTALLATION DATE 06/26/2012 - WY 2012 AVAILABLE PERIOD OF RECORD (POR) 06/26/2012 - Current LENGTH OF AVAILABLE POR DATA 6.26 Years | 2,288 Days DATA GAPS IN POR None STATUS SENSOR (5872) ELEVATION 2.15 feet Gage Height RADAR GAGE (5871) GROUND ELEVATION BELOW SENSOR 3.8 feet Gage Height TRANSDUCER GAGE (5873) ELEVATION 7.26 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 842 Location Map Sycamore Creek Fire - water year peaks 9,000 Discharge (cfs) 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 843 2015 Water Year 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 844 Sycamore Creek Fire, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 845 Tat Momolikot Dam, ID #0773 Site Data LOCATION On the Tohono O'Odham Reservation west of Eloy DRAINAGE AREA 1,780 mi2 STREAM TYPE Dam of natural drainage JURISDICTION Tohono O'Odham Reservation, Arizona WATERSHED Santa Rosa SECTION/TOWNSHIP/RANGE S14 T9S R4E LATITUDE N 32° 39' 00.6" | +32.65016 LONGITUDE W 111° 55' 42.0" | -111.92833 STREAMGAGE INSTALLATION DATE 01/21/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 01/19/2000 - Current LENGTH OF AVAILABLE POR DATA 18.70 Years | 6,830 Days DATA GAPS IN POR 01/21/1998 - 01/19/2000 STAGE GAGE ELEVATION 0.81 Feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,485.00 feet M.S.L. PZF (LOW GATED ORIFICE) 0.0 Feet Gage Height PZF (MIDDLE GATED ORIFICE) 8.0 Feet Gage Height PZF (UPPER GATED ORIFICE) 16.0 Feet Gage Height SPILLWAY ELEVATION 54.0 feet Gage Height TOP OF DAM ELEVATION 72.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 846 Watershed Map Tat Momolikot Dam - water year peaks Volume (acre-feet) 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 847 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/12/2018 08/04/2018 08/10/2018 08/16/2018 09/06/2018 09/21/2018 Peak Gage Height (feet) 2.57 6.68 6.82 7.75 8.88 15.77 Peak Volume (ac-ft) 469 1,316 1,345 1,536 1,759 6,924 Percent Spillway Capacity 0.2 0.7 0.7 0.8 0.9 3.5 Hydrograph of peak WY 2018 impoundment event, Summer 2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 848 Tat Momolikot Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0*Gage ID was 0768 prior to January 24, 2000. **FCD Operated gage since January 1998. However, this float gage did not operate properly. A pressure transducer gage was installed January 24, 2000 and all previous data were deleted. Previously, the US Army Corps of Engineers, Los Angeles District maintained a gage at this location. See also Pool Level and Storage Volume data. FCDMC Annual Surface Water Report, Water Year 2018 Page 849 Tat Momolikot Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 733 529 1099 1181 2 727 531 1155 1167 3 711 524 1289 1425 4 684 517 1274 1573 5 668 514 1231 1660 6 672 517 1178 1723 7 664 514 1140 1686 8 660 503 1134 1648 9 649 497 1106 1609 10 643 495 233 1277 1572 11 625 494 405 1267 1543 12 620 500 387 1237 1516 13 617 490 366 1203 1486 14 613 488 370 1166 1463 15 604 493 416 1363 1435 16 597 483 396 1516 1405 17 583 473 405 1474 1387 18 576 469 407 1421 1367 19 569 480 394 1375 1848 20 568 485 384 1335 5097 21 576 482 386 1305 6673 22 575 466 366 1289 6482 23 572 450 361 1287 6150 24 555 453 355 1257 5870 25 539 447 345 1253 5647 26 539 442 341 1324 5443 27 540 433 322 1312 5261 28 543 420 334 1338 5090 29 537 --822 1254 4928 30 536 --1053 1234 4809 31 536 --------- 1085 1201 -------------------------------------------------------------------------------MEAN 607 453 0 0 0 0 0 0 0 320 1268 3005 MAX 760 558 0 0 0 0 0 0 0 1163 1959 6924 MIN 508 0 0 0 0 0 0 0 0 0 1062 1135 -----------------------------------------------------------------------------WTR YR 2018 MEAN 471 MAX 6924 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 850 Tat Momolikot Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 3.9 2.9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.6 6.0 2 3.8 2.9 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.9 6.0 3 3.7 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6.5 7.2 4 3.6 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6.5 7.9 5 3.5 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6.3 8.4 6 3.6 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 6.0 8.7 7 3.5 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.8 8.5 8 3.5 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.8 8.3 9 3.4 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.7 8.1 10 3.4 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.6 6.5 7.9 11 3.3 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.3 6.4 7.8 12 3.3 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.2 6.3 7.7 13 3.3 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.1 6.1 7.5 14 3.3 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.1 6.0 7.4 15 3.2 2.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.3 6.9 7.3 16 3.2 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.2 7.6 7.1 17 3.1 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.3 7.4 7.0 18 3.1 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.3 7.2 6.9 19 3.1 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.2 7.0 8.3 20 3.0 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.2 6.8 13.8 21 3.1 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.2 6.6 15.6 22 3.1 2.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.1 6.6 15.4 23 3.1 2.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 6.5 15.1 24 3.0 2.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 6.4 14.8 25 2.9 2.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 6.4 14.6 26 2.9 2.4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 6.7 14.3 27 2.9 2.4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.9 6.7 14.1 28 2.9 2.3 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.9 6.8 13.9 29 2.9 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 4.3 6.4 13.7 30 2.9 0.8 0.8 0.8 --0.8 0.8 0.8 0.8 5.4 6.3 13.5 31 2.9 --0.8 0.8 --0.8 --0.8 --5.6 6.1 -------------------------------------------------------------------------------MEAN 3.2 2.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.0 6.4 10.1 MAX 4.0 3.0 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.9 9.8 15.8 MIN 2.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 5.5 5.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN 2.50 MAX 15.77 MIN 0.81 FCDMC Annual Surface Water Report, Water Year 2018 Page 851 Tatum Wash Basin Inflow – ID #4638 Site Data LOCATION Located near Shea Boulevard and 44th Street DRAINAGE AREA 2.17 mi2 STREAM TYPE Engineered Natural Stream JURISDICTION Phoenix, Arizona WATERSHED Middle Indian Bend SECTION/TOWNSHIP/RANGE S30 T3N R4E LATITUDE N 33° 34' 54.1" | +33.58169 LONGITUDE W 111° 59' 04.3" | -111.98453 STREAMGAGE INSTALLATION DATE 06/03/1994 - WY 1994 AVAILABLE PERIOD OF RECORD (POR) 06/03/1994 - Current LENGTH OF AVAILABLE POR DATA DATA 24.33 Years | 8,886 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height 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 2018 Page 852 Watershed Map Tatum Wash - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 1990 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 853 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/30/2018 08/08/2018 08/10/2018 Peak Gage Height (feet) 0.83 1.32 2.34 Peak Discharge (cfs) 169 351 841 Hydrograph of peak WY 2018 flow event, 08/10/2018 Flood Flow Frequency Flood Flow Frequency N=25, HEC-WRC computation (based on 25 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 63 454 1,150 2,360 5,030 8,080 FCDMC Annual Surface Water Report, Water Year 2018 Page 854 Tatum Basin Inflow, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 8 9 --10 --12 11 12 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --2 31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 1 0 0 0 0 0 2 32 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 1 0 0 0 0 0 169 841 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 1 0 0 0 0 0 5 64 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 35 MEAN 0 MAX 841 MIN 0 AC_FT 70 FCDMC Annual Surface Water Report, Water Year 2018 Page 855 Tatum Wash Basin – ID #4653 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 STREAMGAGE INSTALLATION DATE 05/08/1998 - WY 1998 AVAILABLE PERIOD OF RECORD (POR) 05/08/1998 - Current LENGTH OF AVAILABLE POR DATA DATA 20.40 Years | 7,451 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.05 feet Gage Height ZERO GAGE HEIGHT ELEVATION 1,380.60 feet M.S.L. PZF (LOWER FLAP-GATE) 0.4 feet Gage Height PZF (UPPER FLAP-GATE) 4.4 feet Gage Height PZF (UNCONTROLLED INLET TOWER) 11.6 feet Gage Height SPILLWAY CREST ELEVATION 11.8 feet Gage Height TOP OF BASIN ELEVATION 13.4 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 856 Watershed Map Tatum Basin - water year peaks Volume (acre-feet) 45 40 35 30 25 20 15 10 5 0 1995 2000 FCDMC Annual Surface Water Report, Water Year 2018 Page 857 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/30/2018 08/08/2018 08/11/2018 Peak Gage Height (feet) 1.74 1.99 8.22 Peak Volume (ac-ft) 3.9 4.2 20.1 Percent Spillway Capacity 12.1 12.9 61.5 Hydrograph of peak WY 2018 impoundment event, 08/11/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 858 Tatum Wash Basin, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 19 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 20 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 64 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 39 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 20 MEAN 0 MAX 64 MIN 0 AC_FT 39 FCDMC Annual Surface Water Report, Water Year 2018 Page 859 Tatum Wash Basin, volume data Volume, in acre feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 --1 10 --11 8 12 2 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 --------1 -------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 4 20 1 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 20 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 860 Tatum Wash Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 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 0.3 0.1 9 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.6 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 11 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3.6 0.1 12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.7 0.1 13 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 14 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 15 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 16 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 17 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 18 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 19 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 20 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 21 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 24 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 25 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 26 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 28 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 29 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.1 0.1 0.1 30 0.1 0.1 0.1 0.1 --0.1 0.1 0.1 0.1 0.2 0.1 0.1 31 0.1 --0.1 0.1 --0.1 --0.1 --0.6 0.1 -------------------------------------------------------------------------------MEAN 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.1 MAX 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.7 8.2 0.4 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 2018 MEAN 0.07 MAX 8.22 MIN 0.05 FCDMC Annual Surface Water Report, Water Year 2018 Page 861 Tenth Street Wash Basin #1, ID #4818 Site Data LOCATION Near Cave Creek Road and Peoria Avenue DRAINAGE AREA 1.2 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 STREAMGAGE INSTALLATION DATE 11/26/1996 - WY 1997 AVAILABLE PERIOD OF RECORD (POR) 11/26/1996 - Current LENGTH OF AVAILABLE POR DATA 21.85 Years | 7,979 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.33 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,306.80 Feet M.S.L. 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 2018 Page 862 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 863 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/09/2018 08/08/2018 08/11/2018 08/23/2018 Peak Gage Height (feet) 1.12 1.42 1.50 4.46 Peak Volume (ac-ft) 0.4 0.7 0.8 5.3 Percent Spillway Capacity 2.2 3.2 3.7 24.9 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 864 Tenth Street Wash Basin #1, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 1 9 10 11 1 12 13 14 15 16 17 18 19 20 21 22 23 6 24 5 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 13 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 6 40 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 1 26 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 14 MEAN 0 MAX 40 MIN 0 AC_FT 27 FCDMC Annual Surface Water Report, Water Year 2018 Page 865 Tenth Street Wash Basin #1, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 0 5 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 5 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 866 Tenth Street Wash Basin #1, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 6 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 8 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.3 9 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 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 0.5 0.3 12 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 13 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 14 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 15 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 16 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 17 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 18 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 19 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 20 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 21 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 22 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 23 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.9 0.3 24 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.9 0.3 25 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 26 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 27 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 28 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 29 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 30 0.3 0.3 0.3 0.3 --0.3 0.3 0.3 0.3 0.3 0.3 0.3 31 0.3 --0.3 0.3 --0.3 --0.3 --0.3 0.3 -------------------------------------------------------------------------------MEAN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.3 MAX 0.3 0.3 0.3 0.7 0.3 0.3 0.3 0.3 0.3 1.1 4.5 0.3 MIN 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.33 MAX 4.46 MIN 0.33 FCDMC Annual Surface Water Report, Water Year 2018 Page 867 Tiger Wash, ID #5163 Site Data LOCATION Near Eagle Eye Road about 10 miles north of Salome Road DRAINAGE AREA 85 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 STREAMGAGE INSTALLATION DATE 09/15/1999 - WY 1999 AVAILABLE PERIOD OF RECORD (POR) 09/15/1999 - Current LENGTH OF AVAILABLE POR DATA 19.04 Years | 6,956 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 4.73 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 6 (Continuous Slope Area type) ZERO GAGE HEIGHT ELEVATION 1,866.15 feet NAVD 1988 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 2018 Page 868 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 869 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/11/2018 07/28/2018 08/14/2018 Peak Gage Height (feet) 7.22 6.93 6.19 Peak Discharge (cfs) 1,622 1,333 765 Hydrograph of peak WY 2018 flow event, 07/11/2018 Flood Flow Frequency Flood Flow Frequency N=46, HEC-WRC computation (based on 46 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 1,110 2,870 4,430 6,150 8,600 10,600 NOTE: These results are based on limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 870 Tiger Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 --77 --12 --26 13 --14 28 15 4 16 17 18 19 20 21 22 23 24 25 26 27 28 68 29 --43 30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 213 33 0 MEAN 0 0 0 0 0 0 0 0 0 7 1 0 MAX 0 0 0 0 0 0 0 0 0 1622 765 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 422 65 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 245 MEAN 1 MAX 1622 MIN 0 AC_FT 486 FCDMC Annual Surface Water Report, Water Year 2018 Page 871 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 STREAMGAGE INSTALLATION DATE 10/29/2015 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 12/09/2015 - Current LENGTH OF AVAILABLE POR DATA 2.81 Years | 1,027 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.75 feet Gage Height STAFF GAGES None CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,346.36 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height EXTREME FOR PERIOD OF RECORD 714 cfs | 3.93 feet Gage Height | 08/12/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 872 Watershed Map Discharge (cfs) Twin Buttes Wash - water year peaks 100 90 80 70 60 50 40 30 20 10 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 873 2020 Water Year 2025 WY2018 Events Date of Peak 07/11/2018 08/02/2018 08/09/2018 08/12/2018 Peak Gage Height 1.54 1.19 1.65 3.93 Peak Discharge (cfs) 79 38 99 714 Hydrograph of peak WY 2018 flow event, 08/12/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 874 Twin Buttes Wash, runoff data Discharge, in cub, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 1 3 4 5 6 7 8 9 5 10 11 4 12 27 13 1 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 4 34 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 79 723 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 8 68 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 38 MEAN 0 MAX 723 MIN 0 AC_FT 76 FCDMC Annual Surface Water Report, Water Year 2018 Page 875 University Drive at 62nd Street Basin, ID #34607 Site Data LOCATION On University Drive east of Recker Road DRAINAGE AREA Undetermined STREAM TYPE Flood control basin JURISDICTION Mesa, Arizona WATERSHED Upper East Maricopa Floodway SECTION/TOWNSHIP/RANGE S13 T1N R6E LATITUDE N 33° 25' 23.6" | +33.42321 LONGITUDE W 111° 41' 47.3" | -111.69647 STREAMGAGE INSTALLATION DATE 12/22/2016 – WY2017 AVAILABLE PERIOD OF RECORD (POR) 12/22/2016 – Current LENGTH OF AVAILABLE POR DATA 1.77 Years | 648 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.25 feet Gage Height STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,392.00 feet NAVD88 POINT OF ZERO FLOW 0.2 feet Gage Height SPILLWAY CREST ELEVATION 12.0 feet Gage Height TOP OF BASIN ELEVATION 12.5 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 876 Watershed Map Univ Dr at 62nd St Basin - water year peaks Volume (acre-feet) 5 4.8 4.6 4.4 4.2 4 3.8 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 877 2020 Water Year 2025 WY2018 Events Date of Peak 01/10/2018 07/09/2018 07/30/2018 08/07/2018 08/10/2018 08/14/2018 Peak Gage Height (feet) 3.17 4.74 1.85 1.30 5.41 0.98 Peak Volume (ac-ft) 0.1 1.7 0.0 0.0 4.2 0.0 Percent Spillway Capacity 0.5 8.2 0.0 0.0 17.2 0.0 Hydrograph of peak WY 2018 impoundment event, 08/10/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 878 University Drive at 62nd Street Basin, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2 10 1 5 6 11 3 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 1 0 0 0 0 0 7 9 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 4 0 0 0 0 0 6 6 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 2 0 0 0 0 0 15 19 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 18 MEAN 0 MAX 6 MIN 0 AC_FT 35 FCDMC Annual Surface Water Report, Water Year 2018 Page 879 University Drive at 62nd Street Basin, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 1 3 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 2 4 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 4 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 880 University Drive at 62nd Street Basin, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.5 0.2 9 0.2 0.2 0.2 0.4 0.2 0.2 0.2 0.2 0.2 1.7 0.3 0.2 10 0.2 0.2 0.2 0.9 0.2 0.2 0.2 0.2 0.2 3.9 5.1 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 2.3 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 0.3 0.2 15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.4 0.2 0.2 31 0.2 --0.2 0.2 --0.2 --0.2 --0.5 0.2 -------------------------------------------------------------------------------MEAN 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.4 0.5 0.2 MAX 0.2 0.2 0.2 3.2 0.2 0.2 0.2 0.2 0.2 4.7 5.5 0.2 MIN 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0.29 MAX 5.49 MIN 0.25 FCDMC Annual Surface Water Report, Water Year 2018 Page 881 Upper Trilby Wash, ID #5488 Site Data LOCATION Located about 3 miles north of Castle Hot Springs Road DRAINAGE AREA 3.0 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 STREAMGAGE INSTALLATION DATE 09/26/2001 - WY 2001 AVAILABLE PERIOD OF RECORD (POR) 09/26/2001 - Current LENGTH OF AVAILABLE POR DATA 17.01 Years | 6,214 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.90 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 3,030.06 feet NAVD 1988 POINT OF ZERO FLOW 0.8 feet Gage Height EXTREME FOR PERIOD OF RECORD 412 cfs | 2.40 feet | 07/18/2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 882 Watershed Map Upper Trilby Wash - water year peaks 450 Discharge (cfs) 400 350 300 250 200 150 100 50 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 883 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) 07/11/2018 2.33 372 Hydrograph of peak WY 2018 flow event, Hydrograph not available due to gage failure. Flood Flow Frequency Flood Flow Frequency N=17, HEC-WRC computation (based on 17 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 20 100 234 471 1,030 1,740 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 884 Upper Trilby Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 NOTE; Peak for 07/11/2018 was recovered from the crest-stage gage. Level sensor failed during the event. FCDMC Annual Surface Water Report, Water Year 2018 Page 885 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 – Current LENGTH OF AVAILABLE POR DATA 1.34 Years | 489 Days DATA GAPS IN POR None 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 2018 Page 886 Location Map UPRR Underpass at 1st Ave - water year peaks 1.2 Stage (feet) 1 0.8 0.6 0.4 0.2 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 887 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No event recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 888 Percent Spillway Capacity UPRR Underpass at First Avenue, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 2 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 3 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 4 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 5 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 6 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 7 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 9 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 10 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 11 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 12 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 13 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 14 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 15 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 16 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 17 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 18 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 19 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 20 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 21 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 22 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 23 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 24 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 25 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 26 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 27 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 28 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 29 -9.8 -9.8 -9.8 -9.8 --- -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 30 -9.8 -9.8 -9.8 -9.8 --- -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 31 -9.8 --- -9.8 -9.8 --- -9.8 --- -9.8 --- -9.8 -9.8 -------------------------------------------------------------------------------MEAN -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 MAX -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 MIN -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -9.8 -----------------------------------------------------------------------------WTR YR 2018 MEAN -9.83 MAX -9.83 MIN -9.83 FCDMC Annual Surface Water Report, Water Year 2018 Page 889 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 – Current LENGTH OF AVAILABLE POR DATA 1.34 Years | 489 Days DATA GAPS IN POR 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 2018 Page 890 Location Map UPRR Underpass at Central Ave - water year peaks 1.2 Stage (feet) 1 0.8 0.6 0.4 0.2 0 2015 2020 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 891 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 impoundment event No event recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 892 Percent Spillway Capacity UPRR Underpass at Central Avenue, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.0 -3.8 2 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.0 -3.8 3 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.3 -3.9 4 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.6 -3.9 5 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.7 -3.9 6 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.7 -3.9 7 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.8 -4.0 8 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.8 -4.0 9 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.5 -3.3 -4.0 10 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.2 -3.4 -4.1 11 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.4 -3.4 -4.1 12 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.3 -3.5 -4.1 13 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.5 -3.6 -4.2 14 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.6 -3.7 -4.2 15 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 --- -3.7 -3.7 -4.2 16 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 --- -3.8 -3.8 -4.3 17 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 --- -3.8 -3.8 -4.3 18 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 --- -3.9 -3.8 -4.3 19 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -3.9 -3.8 -4.0 20 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.0 -3.9 -3.7 21 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.0 -3.9 -3.9 22 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.0 -3.9 -4.0 23 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.1 -3.7 -4.1 24 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.1 -3.1 -4.1 25 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.1 -3.3 -4.2 26 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.2 -3.4 -4.2 27 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.2 -3.5 -4.2 28 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.2 -3.6 -4.3 29 -5.0 -5.0 -5.0 -5.0 --- -5.0 -5.0 -5.0 -5.0 -4.2 -3.7 -4.3 30 -5.0 -5.0 -5.0 -5.0 --- -5.0 -5.0 -5.0 -5.0 -4.2 -3.7 -4.3 31 -5.0 --- -5.0 -5.0 --- -5.0 --- -5.0 --- -3.9 -3.8 -------------------------------------------------------------------------------MEAN -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.2 -3.6 -4.1 MAX -5.0 -5.0 -5.0 -5.0 -5.0 -4.6 -5.0 -5.0 -5.0 -2.5 -2.1 -3.0 MIN -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -5.0 -4.1 -4.4 -----------------------------------------------------------------------------WTR YR 2018 MEAN -4.74 MAX -2.06 MIN -5.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 893 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 STREAMGAGE INSTALLATION DATE 05/11/2016 - WY 2016 AVAILABLE PERIOD OF RECORD (POR) 05/11/2016 - Current LENGTH OF AVAILABLE POR DATA 2.39 Years | 873 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.10 feet Gage Height STAFF GAGES None CREST STAGE GAGES None ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.0 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 2018 Page 894 Watershed Map US60 at Gold Canyon - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 895 2020 Water Year 2025 WY2018 Events Date of Peak 07/09/2018 08/23/2018 Peak Gage Height 1.42 0.92 Peak Discharge (cfs) 141 26 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 896 US60 at Gold Canyon, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 3 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 3 0 0 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 0 0 141 26 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 6 1 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 4 MEAN 0 MAX 141 MIN 0 AC_FT 7 FCDMC Annual Surface Water Report, Water Year 2018 Page 897 Vekol Wash, ID #6983 Site Data LOCATION Near I-8 and Vekol Valley Road DRAINAGE AREA 150 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 STREAMGAGE INSTALLATION DATE 03/07/1990 - WY 1990 AVAILABLE PERIOD OF RECORD (POR) 03/07/1990 - Current LENGTH OF AVAILABLE POR DATA 28.57 Years | 10,435 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 3.23 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,719.89 feet NAVD 1988 POINT OF ZERO FLOW 3.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 10,100 cfs | 10.10 feet | 08/27/2010 FCDMC Annual Surface Water Report, Water Year 2018 Page 898 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 899 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak 07/09/2018 07/21/2018 07/31/2018 08/10/2018 08/15/2018 08/23/2018 09/19/2018 Peak Gage Height (feet) 7.30 5.80 5.20 4.38 5.35 5.48 6.25 Peak Discharge (cfs) 2,120 630 370 42 438 504 887 Hydrograph of peak WY 2018 flow event, 07/09/2018 Flood Flow Frequency Flood Flow Frequency N=29, HEC-WRC computation (based on 29 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 958 2,580 4,190 6,150 9,330 12,200 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 900 Vekol Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 4 5 6 7 8 9 130 10 11 12 13 14 15 41 16 17 18 19 56 20 21 42 22 23 64 24 25 26 27 28 29 --30 --31 --------10 -------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 183 106 56 MEAN 0 0 0 0 0 0 0 0 0 6 3 2 MAX 0 0 0 0 0 0 0 0 0 2120 504 887 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 362 210 111 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 345 MEAN 1 MAX 2120 MIN 0 AC_FT 683 FCDMC Annual Surface Water Report, Water Year 2018 Page 901 Vineyard FRS, ID #6688 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 STREAMGAGE INSTALLATION DATE 11/02/1983 - WY 1984 AVAILABLE PERIOD OF RECORD (POR) 11/09/1987 - Current LENGTH OF AVAILABLE POR DATA 30.89 Years | 11,284 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 5 ZERO GAGE HEIGHT ELEVATION 1,564.20 feet NAVD 1988 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 2018 Page 902 Watershed Map Vineyard FRS - water year peaks Volume (acre-feet) 3,500 3,000 2,500 2,000 1,500 1,000 500 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 903 2000 2005 Axis Title 2010 2015 2020 WY2018 Events* Peak Gage Height Peak Volume (ac-ft) (feet) 08/10/2018 2.27 389.0 08/23/2018 2.97 558.5 *NOTE: Due to construction, peak volumes are greater than actual. Date of Peak Percent Spillway Capacity 8.4 12.0 Hydrograph of peak WY 2018 impoundment event, 08/23/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 904 Vineyard FRS, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 18 11 1 12 13 14 15 16 17 18 19 20 21 22 23 5 24 30 25 15 26 2 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 0 71 0 MEAN 0 0 0 0 0 0 0 0 0 0 2 0 MAX 0 0 0 0 0 0 0 0 0 0 46 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 0 141 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 71 MEAN 0 MAX 46 MIN 0 AC_FT 141 FCDMC Annual Surface Water Report, Water Year 2018 Page 905 Vineyard FRS, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 10 248 11 28 12 13 14 15 16 17 18 19 20 21 22 23 58 24 388 25 221 26 36 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 32 0 MAX 0 0 0 0 0 0 0 0 0 0 558 0 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 3 MAX 558 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 906 Vineyard FRS, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 9 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 10 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.6 0.2 11 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 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 0.5 0.2 24 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.3 0.2 25 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.4 0.2 26 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.2 MAX 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3.0 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 2018 MEAN 0.21 MAX 2.97 MIN 0.20 FCDMC Annual Surface Water Report, Water Year 2018 Page 907 Vulture Mine Road, ID #5263 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 STREAMGAGE INSTALLATION DATE 10/25/2005 - WY 2006 AVAILABLE PERIOD OF RECORD (POR) 10/25/2005 - Current LENGTH OF AVAILABLE POR DATA 12.93 Years | 4,724 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.35 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 2,311.45 feet NAVD88 POINT OF ZERO FLOW 1.53 feet Gage Height EXTREME FOR PERIOD OF RECORD 159 cfs | 3.58 feet | 08/03/2014 FCDMC Annual Surface Water Report, Water Year 2018 Page 908 Watershed Map Vulture Mine Road - water year peaks 180 Discharge (cfs) 160 140 120 100 80 60 40 20 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 909 2020 WY2018 Events Date of Peak Peak Gage Height Peak Discharge (cfs) ` No flow recorded Hydrograph of peak WY 2018 flow event There was no recorded flow during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 910 Vulture Mine Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 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 2018 TOTAL 1 MEAN 0 MAX 1 MIN 0 AC_FT 2 FCDMC Annual Surface Water Report, Water Year 2018 Page 911 Wagner Wash at Sun Valley Parkway, ID #44707 Site Data LOCATION On Sun Valley Parkway near the Bell Road alignment DRAINAGE AREA 27.7 mi2 STREAM TYPE Culvert - Natural Stream 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 STREAMGAGE INSTALLATION DATE 02/16/2017 – WY2017 AVAILABLE PERIOD OF RECORD (POR) 02/16/2017 – Current LENGTH OF AVAILABLE POR DATA 1.62 Years | 592 Days DATA GAPS IN POR None STAGE GAGE TYPE Pressure Transducer STAGE GAGE ELEVATION 0.05 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,434.80 feet NAVD88 POINT OF ZERO FLOW 0.0 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,358 cfs | 2.97 feet Gage Height | 08/16/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 912 Watershed Map Discharge (cfs) Wagner Wash at SVP - water year peaks 2000 1800 1600 1400 1200 1000 800 600 400 200 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 913 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height 08/16/2018 2.97 Peak Discharge (cfs) ` 1,358 Hydrograph of peak WY 2018 flow event Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 914 Wagner Wash at Sun Valley Parkway, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 32 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 32 0 MEAN 0 0 0 0 0 0 0 0 0 0 1 0 MAX 0 0 0 0 0 0 0 0 0 0 1417 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 63 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 32 MEAN 0 MAX 1417 MIN 0 AC_FT 63 FCDMC Annual Surface Water Report, Water Year 2018 Page 915 Waterman Wash at Rainbow Valley Road, ID #6833 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 STREAMGAGE INSTALLATION DATE 03/18/1999 - WY 1999 AVAIALBLE PERIOD OF RECORD 03/18/1999 - Current LENGTH OF AVAILABLE POR DATA 19.54 Years | 7,137 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 1.00 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,009.85 feet NAVD 1988 POINT OF ZERO FLOW 1.1 feet Gage Height EXTREME FOR PERIOD OF RECORD 5,713 cfs | 10.82 feet | 07/30/2016 FCDMC Annual Surface Water Report, Water Year 2018 Page 916 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 FCDMC Annual Surface Water Report, Water Year 2018 Page 917 2005 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/14/2018 08/03/2018 08/13/2018 09/03/2018 Peak Gage Height (feet) 1.20 1.18 1.55 1.25 Peak Discharge (cfs) 153 150 250 158 Hydrograph of peak WY 2018 flow event, 08/13/2018 Flood Flow Frequency Flood Flow Frequency N=20, HEC-WRC computation (based on 20 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 650 1,990 3,520 5,590 9,340 13,100 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 918 Waterman Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 3 1 1 4 5 6 7 8 9 10 11 12 13 6 14 1 15 16 17 18 2 19 20 21 22 23 24 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 2 0 1 7 1 MEAN 0 0 0 0 0 0 0 0 0 0 0 0 MAX 0 0 0 0 0 0 0 28 0 15 35 18 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 3 0 1 14 3 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 10 MEAN 0 MAX 35 MIN 0 AC_FT 21 FCDMC Annual Surface Water Report, Water Year 2018 Page 919 Weekes Wash at Baseline Road, ID #6753 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 STREAMGAGE INSTALLATION DATE 05/27/2008 - WY 2008 AVAILABLE PERIOD OF RECORD (POR) 05/27/2008 - Current LENGTH OF AVAILABLE POR DATA 10.35 Years | 3,779 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.20 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.00 feet Gage Height EXTREME FOR PERIOD OF RECORD 1,624 cfs | 7.24 feet Gage Height | 07/24/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 920 Watershed Map Weekes Wash at Baseline Road - water year peaks 1,800 Discharge (cfs) 1,600 1,400 1,200 1,000 800 600 400 200 0 2005 2010 2015 Water Year FCDMC Annual Surface Water Report, Water Year 2018 Page 921 2020 WY2018 Events Date of Peak 07/09/2018 08/10/2018 (01:17) 08/10/2018 (23:35) 08/23/2018 08/24/2018 Peak Gage Height 0.65 1.53 0.78 3.12 2.32 Peak Discharge (cfs) 31 129 45 386 243 Hydrograph of peak WY 2018 flow event, 08/23/2018 Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 922 Weekes Wash at Baseline Road, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 1 10 10 11 1 12 13 14 15 16 17 18 19 20 21 22 --23 --31 24 --16 25 --1 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 1 60 0 MEAN 0 0 0 0 0 0 0 0 0 0 2 0 MAX 0 0 0 0 0 0 0 0 0 31 386 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 2 119 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 61 MEAN 0 MAX 386 MIN 0 AC_FT 122 FCDMC Annual Surface Water Report, Water Year 2018 Page 923 White Tanks FRS #3, ID #5418 Site Data LOCATION Located on the eastern foothills of the White Tank Mountains, north 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 STREAMGAGE INSTALLATION DATE 03/12/1986 - WY 1986 AVAIALBLE PERIOD OF RECORD 01/01/1988 - Current LENGTH OF AVAILABLE POR DATA 30.75 Years | 11,231 Days DATA GAPS IN POR 12/14/2005 - 06/18/2008 STAGE GAGE ELEVATION 1.50 feet Gage Height STAFF 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 6.0 feet Gage Height OUTLET) POINT OF ZERO FLOW (UNCONTROLLED) 9.0 feet Gage Height (currently blocked) SPILLWAY ELEVATION 21.0 feet Gage Height TOP OF DAM ELEVATION 27.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 924 Watershed Map White Tanks FRS #3 - water year peaks Volume (acre-feet) 700 600 500 400 300 200 100 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 925 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) No impoundments Hydrograph of peak WY 2018 impoundment event There were no impoundments recorded in Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 926 Percent Spillway Capacity White Tanks FRS #3, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 927 White Tanks FRS #3, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 928 White Tanks FRS #3, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 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 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 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 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 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 10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 11 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 12 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 13 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 14 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 15 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 16 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 17 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 18 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 19 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 20 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 21 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 22 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 23 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 24 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 25 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 26 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 27 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 28 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 29 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 1.5 1.5 1.5 1.5 30 1.5 1.5 1.5 1.5 --1.5 1.5 1.5 1.5 1.5 1.5 1.5 31 1.5 --1.5 1.5 --1.5 --1.5 --1.5 1.5 -------------------------------------------------------------------------------MEAN 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 MAX 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 MIN 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 -----------------------------------------------------------------------------WTR YR 2018 MEAN 1.50 MAX 1.50 MIN 1.50 FCDMC Annual Surface Water Report, Water Year 2018 Page 929 White Tanks FRS #4, ID #6823 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 STREAMGAGE INSTALLATION DATE 01/09/1986 - WY 1986 AVAILABLE PERIOD OF RECORD (POR) 10/01/1987 - Current LENGTH OF AVAILABLE POR DATA 31.00 Years | 11,323 Days DATA GAPS IN POR 06/01/2011 - 11/16/2011 STAFF GAGES 0 ZERO GAGE HEIGHT ELEVATION 1,030.00 feet NAVD88 POINT OF ZERO FLOW 0.00 feet Gage Height (gated outlet) SPILLWAY ELEVATION 1,053.00 feet NAVD88 TOP OF DAM ELEVATION 1,059.00 feet NAVD88 NOTE: Reconstruction at dam was completed in June 2017 and outlet and spillway elevations have been updated to reflect the newly rehabilitated structure. FCDMC Annual Surface Water Report, Water Year 2018 Page 930 Watershed Map White Tanks FRS #4 - water year peaks Volume (acre-feet) 700 600 500 400 300 200 100 0 1985 1990 1995 FCDMC Annual Surface Water Report, Water Year 2018 Page 931 2000 2005 Water Year 2010 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Volume (ac-ft) None Hydrograph of peak WY 2018 flow event, No impoundments recorded during Water Year 2018. FCDMC Annual Surface Water Report, Water Year 2018 Page 932 Percent Spillway Capacity White Tanks FRS #4, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 933 White Tanks FRS #4, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 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 2018 MEAN 0 MAX 0 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 934 White Tanks FRS #4, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 2 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 3 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 4 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 5 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 7 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 8 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 9 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 10 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 11 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 12 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 13 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 14 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 15 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 16 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 17 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 18 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 19 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 20 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 21 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 22 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 23 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 24 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 25 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 26 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 27 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 28 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 29 -0.6 -0.6 -0.6 -0.6 --- -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 30 -0.6 -0.6 -0.6 -0.6 --- -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 31 -0.6 --- -0.6 -0.6 --- -0.6 --- -0.6 --- -0.6 -0.6 -------------------------------------------------------------------------------MEAN -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 MAX -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 MIN -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -0.6 -----------------------------------------------------------------------------WTR YR 2018 MEAN -0.60 MAX -0.60 MIN -0.60 FCDMC Annual Surface Water Report, Water Year 2018 Page 935 White Tank Outfall Channel, ID #87407 Site Data LOCATION At Jackrabbit Trail and Indian School Road DRAINAGE AREA 26.8 mi2 STREAM TYPE Engineered Channel 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 STREAMGAGE INSTALLATION DATE 12/07/2016 – WY2017 AVAIALBLE PERIOD OF RECORD 12/07/2016 - Current LENGTH OF AVAILABLE POR DATA 1.82 Years | 663 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.96 feet Gage Height STAFF GAGES 1 CREST STAGE GAGES 0 ZERO GAGE HEIGHT ELEVATION 0.00 feet Gage Height POINT OF ZERO FLOW 0.96 feet Gage Height EXTREME FOR PERIOD OF RECORD 27 cfs | 1.85 feet | 08/13/2017 FCDMC Annual Surface Water Report, Water Year 2018 Page 936 Watershed Map Discharge (cfs) White Tanks Outlet Channel - water year peaks 100 90 80 70 60 50 40 30 20 10 0 2015 FCDMC Annual Surface Water Report, Water Year 2018 Page 937 2020 Water Year 2025 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency There is not enough data to compute a flood flow frequency for this gage station. FCDMC Annual Surface Water Report, Water Year 2018 Page 938 White Tank Outfall Channel, runoff data Discharge, in cub, Water Year October 2017 to September 2018 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 2018 TOTAL 0 MEAN 0 MAX 0 MIN 0 AC_FT 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 939 Whitlow Ranch Dam, ID #6739 Site Data LOCATION East of Apache Junction near Queen Valley DRAINAGE AREA 143 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 STREAMGAGE INSTALLATION DATE 08/02/2000 - WY 2000 AVAILABLE PERIOD OF RECORD (POR) 08/02/2000 - Current LENGTH OF AVAILABLE POR DATA 18.16 Years | 6,634 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 3.30 feet Gage Height STAFF GAGES 28 ZERO GAGE HEIGHT ELEVATION 2,056.00 feet M.S.L. POINT OF ZERO FLOW 0.00 feet Gage Height SPILLWAY ELEVATION 110.0 feet Gage Height TOP OF DAM ELEVATION 143.0 feet Gage Height FCDMC Annual Surface Water Report, Water Year 2018 Page 940 Watershed Map Whitlow Ranch Dam - water year peaks Volume (acre-feet) 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 941 2010 Water Year 2015 2020 WY2018 Events Date of Peak 07/10/2018 08/22/2018 08/24/2018 09/02/2018 Peak Gage Height (feet) 14.23 19.29 15.58 17.71 Peak Volume (ac-ft) 36 188 74 135 Percent Spillway Capacity 0.4 1.9 0.8 1.4 Hydrograph of peak WY 2018 impoundment event, 08/22/2018 FCDMC Annual Surface Water Report, Water Year 2018 Page 942 Whitlow Ranch Dam, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 130 3 4 5 6 7 8 9 10 16 11 12 13 14 15 16 --17 18 19 20 21 22 101 23 53 24 38 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 0 0 16 192 130 MEAN 0 0 0 0 0 0 0 0 0 1 6 4 MAX 0 0 0 0 0 0 0 0 0 349 423 402 MIN 0 0 0 0 0 0 0 0 0 0 0 0 AC_FT 0 0 0 0 0 0 0 0 0 32 381 258 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 339 MEAN 1 MAX 423 MIN 0 AC_FT 671 FCDMC Annual Surface Water Report, Water Year 2018 Page 943 Whitlow Ranch Dam, volume data Volume, in acre-feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 2 36 3 4 5 6 7 8 9 10 1 11 12 13 14 15 16 --17 18 19 20 21 22 37 23 14 24 6 25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------MEAN 0 0 0 0 0 0 0 0 0 0 2 1 MAX 0 0 0 0 0 0 0 0 0 36 188 135 MIN 0 0 0 0 0 0 0 0 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 0 MAX 188 MIN 0 FCDMC Annual Surface Water Report, Water Year 2018 Page 944 Whitlow Ranch Dam, stage data Depth, in feet, Water Year October 2017 to September 2018 Daily Mean Values DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP -----------------------------------------------------------------------------1 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 2 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 14.2 3 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 4 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 5 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 6 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 7 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 8 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 9 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 10 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 11 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 12 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 14 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 15 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 16 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 --17 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 18 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 19 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 20 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 21 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 22 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 14.3 13.0 23 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.5 13.0 24 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.2 13.0 25 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 26 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 27 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 28 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 29 13.0 13.0 13.0 13.0 --- 13.0 13.0 13.0 13.0 13.0 13.0 13.0 30 13.0 13.0 13.0 13.0 --- 13.0 13.0 13.0 13.0 13.0 13.0 13.0 31 13.0 --- 13.0 13.0 --- 13.0 --- 13.0 --- 13.0 13.0 -------------------------------------------------------------------------------MEAN 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.1 13.0 MAX 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 14.2 19.3 17.7 MIN 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 -----------------------------------------------------------------------------WTR YR 2018 MEAN 13.01 MAX 19.29 MIN 13.00 FCDMC Annual Surface Water Report, Water Year 2018 Page 945 Winters Wash, ID #5118 Site Data LOCATION Located north of Camelback Road and west of 395th Avenue DRAINAGE AREA 27.8 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 STREAMGAGE INSTALLATION DATE 07/11/2000 - WY 2000 AVAILABLE PERIOD OF RECORD (POR) 07/11/2000 - Current LENGTH OF AVAILABLE POR DATA 18.22 Years | 6,656 Days DATA GAPS IN POR None STAGE GAGE ELEVATION 0.51 feet Gage Height STAFF GAGES 0 CREST STAGE GAGES 1 ZERO GAGE HEIGHT ELEVATION 1,120.00 feet NAVD 1988 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 2018 Page 946 Watershed Map Winters Wash - water year peaks 600 Discharge (cfs) 500 400 300 200 100 0 2000 2005 FCDMC Annual Surface Water Report, Water Year 2018 Page 947 2010 Water Year 2015 2020 WY2018 Events Date of Peak Peak Gage Height (feet) Peak Discharge (cfs) None Hydrograph of peak WY 2018 flow event, No runoff recorded during Water Year 2018. Flood Flow Frequency Flood Flow Frequency N=19, HEC-WRC computation (based on 19 years of data) 2-year 5-year 10-year 20-year 50-year 100-year 163 345 500 672 929 1,140 NOTE: These results are based on very limited data. FCDMC Annual Surface Water Report, Water Year 2018 Page 948 Winters Wash, runoff data Discharge, in cfs, Water Year October 2017 to September 2018 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 4 19 5 20 21 22 23 24 --25 26 27 28 29 --30 --31 ---------------------------------------------------------------------------------------TOTAL 0 0 0 0 0 0 0 9 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 65 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 17 0 0 0 0 -----------------------------------------------------------------------------WTR YR 2018 TOTAL 9 MEAN 0 MAX 65 MIN 0 AC_FT 17 FCDMC Annual Surface Water Report, Water Year 2018 Page 949 End of Report FCDMC Annual Surface Water Report, Water Year 2018 Page 950