ALERT Rain / Stream Gage Schematic

Transcription

1 ALERT Rain / Stream Gage Schematic ANNUAL HYDROLOGIC DATA REPORT VOLUME I: PRECIPITATION WATER YEAR 00

2 PREFACE This publication presents precipitation data collected by the Flood Control District of Maricopa County's (FCDMC) automated ALERT system. This telemetered flood-detection network is located primarily throughout Maricopa County, Arizona with additional stations in Yavapai, Pinal, Gila, and La Paz Counties. The data contained in this report was collected, compiled and edited by the Flood Warning Branch of the Engineering Division. Precipitation data include daily, monthly, and annual totals for 9 stations owned and maintained by FCDMC. The ALERT base station computers also collect data from various stations not owned by FCDMC, and data from these are not included in this report. Information contained herein is as accurate and complete as possible within the limitations of real-time ALERT data collection technology currently available. Wherever possible, footnotes have been included to identify questionable, estimated or missing data. Reliance upon the accuracy, reliability or authority of this information is solely the responsibility of the user. This report is Volume 1 of a volume suite entitled "ALERT Annual Hydrologic Data Report - Water Year 00". Volumes & in order are [] Surface Water Report; and [] Weather Data Summary. Additional copies of this report, or copies of the companion volumes, may be purchased from: Flood Control District of Maricopa County 801 W. Durango St. Phoenix, AZ 8009 (0) or can be downloaded from our World Wide Web page at: i

3 TABLE OF CONTENTS Preface...i Contents...ii Introduction...iii General Map of Rain Gage Locations (Figure 1)...iv Annual Rainfall Totals Map (Figure )...v Rain Gage ID Numbers and Descriptors (Table I)...vi Rain Stations Installed during Water-Year 00 (Table II)...xiii Rain Gage Failure Statistics during Water-Year 00 (Table III)...xiii Water-Year 00 Rainfall Totals Table (Table IV)...xiv Water-Year 00 & 00 Rainfall Statistics (Table V)...xx Water-Year 00 Hyetographs for Six Selected Gages...xxi Precipitation Data Daily Totals and Statistics for Precipitation Stations (In Order of Station ID Number) ii

4 INTRODUCTION The following paragraphs describe the arrangement, collection, and compilation of data in this report: 1. Data is tabulated for each precipitation gage based on the "00 Water Year" which begins Oct. 1st, 00 and ends on Sep. 0th, 00. Each data page represents one gage, and lists the daily precipitation totals, the monthly totals, the cumulative rainfall by month, the maximum daily value each month, and the number of days with rain. The data pages are arranged in ascending order by gage ID number.. The unit of measurement for daily precipitation totals provided in this report is inches. Annual totals are also provided in millimeters.. An index of gage names, numbers, locations, and other descriptors is included as Table I.. All of the data in this report have been reviewed and/or edited in an attempt to provide the most accurate data possible. Inaccurate data or recording time gaps are flagged with a footnote describing the time the gage was down, the cumulative rainfall count in millimeters at the beginning and end of the down period, whether or not rain fell during that time, and whether or not monthly and annual totals were affected. For example, a footnote might read "Gage 0 down from /1 0:0 (9) through /1 1:0 (9) due to a lightning strike; assigned mm to /1", where the values in parentheses are the beginning and ending rainfall counts in millimeters.. Snow gages were in service during Water-Year 00. They consist of a -foot tube mounted vertically above and attached to the tipping-bucket funnel. Consequently, gages above approximately,000 feet will show meltwater following the colder winter events.. Table II lists the sensors installed in the FCDMC ALERT System during Water Year 00 and their installation dates. Table III lists the annual rainfall total for each gage, sorted by decreasing amount, along with Water-Year totals for 00, 001, and 000. Table III can also be used as a quick reference to determine which gages were installed during the Water Year, which had incomplete records and which had estimated totals. In the case of estimated totals, one or more daily totals were calculated using either the Isohyetal or Thiessen polygon methods applied to nearby rain stations.. Additional and/or more detailed sensor data in hard copy or computer disk format is available for the gages listed in this report. Contact the Flood Control District, Engineering Division, Flood Warning Branch at (0) Data can also be downloaded from our Web Site at 8. Note on data compilation: All the automatic rain gages in this network but one measure rainfall depth in 1mm increments. The base station computer which collects the data uses the relation 1mm = 1/. or 0.09 inches to convert millimeters to inches. As a result, daily totals may sum to a slightly different total than the reported monthly total (which is more accurate than the sum of the daily totals) because of rounding errors. In the same way, the annual totals reported in Table III may not match exactly the sum of the monthly totals, but can be considered more accurate. 9. Note on the accuracy of monthly and annual totals: Because automatic ALERT gages are designed for flood warning applications, there is some inherent error associated with their use in maintaining accurate long-term records. The majority of tipping buckets collect rainfall in 1mm increments before sending a signal and dumping the accumulated rainfall. Because evaporation often dries the bucket between storms, the measurement error averages out to be 0.0 mm (0.0 in) times the number of rainfall events during the period of interest (month or year). It is also probable that during times of low evaporation and/or short times between storms that the bucket could be partially or nearly full at the start of a rainstorm. Other errors can be introduced by the effects of gage height, calibration errors, and the physical environment (trees, buildings, wind patterns) near the gage. iii

5 Figure 1 General Map of ALERT Rain Gage Locations iv

6 Figure Water-Year 00 Rainfall Depth Map Created From ALERT Station Totals v

7 Flood Control District of Maricopa County ALERT System Sensor Database - Precipitation Sensors as of 09/0/00 Sensors in RED were installed during water-year 00 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Sacaton Peak 0 0//9 S-E miles E. of the SR8 / I- junction Tat Momolikot Dam 0 01/9/98 9S-E miles SW of Casa Grande Maricopa Rd 0/09/9 S-E Gila River at Maricopa Road bridge Olberg 80 0/1/9 S-E Gila River at Olberg Bridge, mi. ENE of Sacaton Santa SR 8 8 0/1/9 S-E mi. West of SR 9 (Casa Grande) on SR 8 Santa SR 8 9 0/1/9 S-E mi. West of SR 9 (Casa Grande) on SR 8 Cesar Chavez Park 00 08/08/90 1S-E South end of park, th Ave. and Baseline Rd. Salt I- 0 1//9 1N-E I- Bridge at Salt River nd St. 01/9/91 1N-E / mi. SSE of Broadway Rd. and Central Ave. Salt 0th St. 1 0//9 1N-E South side of Salt River near 0th St. Salt Priest Dr. 0 09//9 1N-E West side of Salt River bridge at Priest Drive ASU South 0/1/9 1N-E / mi. NNE of Broadway Rd. and Mill Ave. Kleinman Park 0 0//91 1N-E / mi. SE of Broadway Rd. and Alma School Rd. Dobson /01/9 1N-E /8 mi. SW of Broadway Rd. & Dobson Rd. Fitch Park 0 0//91 1N-E / mi. N of University Dr. and Center St. Brown Horne /0/9 1N-E yards N. of Brown Horne, Mesa Mountain View Park 0 0//91 1N-E / mi. N of University Dr. and Lindsay Rd. Falcon Field /01/9 1N-E / mi. NE of McKellips Rd. & Greenfield Rd. Spookhill FRS 0 0/1/8 N-E / mi. N of McDowell Rd. and Bush Highway Price 0 0 0/1/01 1N-E Loop 0 at Loop 1 Salt River Landfill 80 01/0/98 N-E / mi. N of Gilbert Reata Pass Wash 8 0/1/01 N-E mi. east of Pima Rd. on Pinnacle Peak Road Union Hills 90 //9 N-E / mi. west of Pima Union Hills Pinnacle Peak Vista 9 0//98 N-E / mi. SSE of Deer Valley Rd. and Pima Rd. McKellips Rd. 00 0//8 1N-E On Indian Bend Wash 1/ mi. South of McKellips th St. 0 //9 N-E yards east of Osborn th St. Indian Bend Rd. 09/8/8 N-E On Indian Bend Wash just S. of Indian Bend Rd. Indian School Rd. 1 //9 N-E Indian School Hayden Rd. Interceptor 0 01/01/89 N-E / mi. SW of Pima Rd. & Indian Bend Rd. 8 th St. /1/9 N-E / mi. north of 8 th St. Thunderbird Academy 0 08/0/81 N-E / mi. ESE of Thunderbird Rd. and Scottsdale Rd. Tatum 0th St. 0/0/9 N-E Just S. of 0th St. and Mountain View Rd. Sweetwater 0 1//90 N-E / mi. E of nd St. and Sweetwater Ave. East Fork CC #1 0/0/9 N-E / mi. E of Beardsley Rd. and Cave Creek Rd. Paradise Valley Park 0 0//89 N-E / mi. E of Union Hills Dr. and nd St. vi TABLE I

8 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location East Fork CC # 01//9 N-E / mi. S of Union Hills Dr. and nd St. Lost Dog Wash 0 0/1/90 N-E / mi. NNW of Shea Blvd. and 18th St. EFCC near th Ave. 0/08/9 N-E Near th Ave., 1/ mi. South of Greenway Rd. Jomax 0 0/0/9 N-E /8 mi. NW of Pi ma Rd. and Jomax Rd. Lake Marguarite //9 N-E / mi. west of Doubletree and Hayden East Fork CC # 80 09/1/9 N-E / mi. SW of Union Hills Dr. and Cave Creek Rd. Berneil Wash 8 0/0/98 N-E Invergordon Shea Blvd. 90 0/09/98 N-E Shea nd St. Aztec Park 9 0/0/98 N-E Thunderbird Frank Lloyd Wright Blvd. Durango Complex 00 0/0/80 1N-E th Ave. and Durango St. th Ave. 01/9/91 1N-E County Building, th Ave. and Jefferson St. th Ave. 1 //9 N-E Near 8 th Ave. and Grand Ave. 1th St. 0 01/1/91 1N-E th St. at Thomas Rd. Perry Park 0 08//90 N-E /8 mi. S. of Thomas Rd. and nd St. Papago Park 0 08/1/90 1N-E / mi. N. of McDowell Rd. and nd St. Old McDowell 0//9 1N-E McDowell Rd. at Hohokam Expressway 8th St. 0 01/0/91 1N-E Thomas Rd. and 8th St. Salt th Ave. 0//98 1N-1E th Roeser St. Maryvale Muni Golf 0 08/1/89 N-E / mi. N of Indian School Rd. and 9th Ave. th Ave. 08/01/9 1N-1E / mi. N. of Buckeye Rd. and th Ave. City of Glendale 0 0/1/89 N-E-0 8 Grand Avenue at rd Avenue th Av 1//9 N-E Near I-1, 1/ mi. North of Bethany Home Rd. 1th St /1/91 N-E / mi. North of Camelback Rd. and 1th St. Butler Park 8 09/09/98 N-E / mi. SE of 9 th Ave. and Olive Ave. Paradise Valley CC 90 0/1/89 N-E / mi. North of Lincoln Dr. and Tatum Blvd. Dreamy Draw Dam //8 N-E / mi. SSW of the th St. and Dulap Ave. alignments th St. 80 0//9 N-E / mi. North of th St. and Camelback Rd. 1th St. 8 0/09/9 N-E / mi. North of Glendale Ave. and 1th St. th St. Wash Basin #1 81 //9 N-E / mi. SW of Peoria Ave. and Cave Creek Rd. rd Ave. 80 /1/90 N-E / mi. NW of Peoria Ave. and rd Ave. Phoenix Basin # 8 1//01 N-E Cave Creek Road at 1th St. Cave Cactus 80 0//91 N-E / mi. ENE of I-1 and Cactus Rd. Cave Creek 8 0//9 N-E Mountain View Rd. near rd Ave. nd Ave /1/91 N-E / mi. East of Greenway Rd. and nd Ave. th Street 80 /1/9 N-E / mi. SW of Thunderbird Rd. and th Street Phoenix West Park 8 /9/01 N-E Peoria at th Ave. Rawhide Wash 80 0//99 N-E / mile west of Pima Rd. on Dynamite Blvd. Cave Creek 890 /9/0 N-E mile west of Cave Creek Town Hall Cave Buttes Dam //8 N-E / mi. North of the Happy Valley Rd. & 1th St. alignments Stagecoach Wash 9 0/1/01 N-E On Pima Road about 1/ mile south of Cave Creek Rd. Cave Creek Landfill 91 0//9 N-E / mi. E of Carefree Hwy. and the 0th St. alignment vii TABLE I

9 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Cave Spur Cross 90 0/1/9 N-E mi. North of the Town of Cave Creek Carefree Ranch 90 0/1/8 N-E mi. NE of Skyranch Airport Reata Pass Dam 9 0//9 N-E / mi. South of Dynamite Blvd. and th St. Humboldt Mtn. 90 0/1/81 N-E mi. NE of the Town of Cave Creek Seven Springs 90 /1/81 8N-E mi. NNE of the Town of Cave Creek Seven Springs Wash 90 0/1/0 N-E miles NE of Cave Creek Mt. Oatman 000 0/0/80 S-9W mi. WSW of Painted Rock Dam Columbus Wash 0 9//99 S-W miles north of Agua Caliente Copper Wash 00 0/0/01 S-W miles north of Agua Caliente th of July Wash 00 0/1/0 S-9W mi. W of Old US 80 on Agua Caliente Rd. Gila Bend Mountains 00 0/01/88 S-9W mi. NW of Painted Rock Dam off Agua Caliente Rd. G&F Woolsey Peak 00 0//0 S-W miles southwest of Gillespie Dam Eagle Eye CAP 0 0/1/0 N-W miles S of Salome Hwy. on Eagle Eye Rd. th Ave /0/01 N-W miles NW of the Hassayampa River crossing of I- Cruff Wash 0 0/1/0 S-W miles W of Agua Caliente Road and Old US 80 th Ave /1/00 1N-W Buckeye th Ave. th Ave. 08 0//00 1S-9W SW Corner of Baseline and th Ave. Wenden /0/98 N-1W mi. NE of Salome on US0 bridge Webb Mountain 09 0//0 S-W miles W of Aguila Caliente Rd. and Old US 80 Centennial Railroad 0 0/09/90 1S-W mi. NW of Old US 80 at the Gila River Delaney Wash 1//99 N-W miles SSW of Tonopah Saddleback FRS 0 1/1/88 N-W mi. WSW of Tonopah in Harquahala Valley Winters Wash 0//00 N-W mi. N of Indian School Rd. and 0 rd Ave. Centennial Levee 10 0/0/8 N-W mi S. of I- and 1 mi. E. of West County border Harquahala FRS 1 09/1/9 N-8W mi. WNW of Tonopah in Harquahala Valley Upper Tiger Wash 09/1/80 N-9W mi. S. of Aguila off Eagle Eye Road Four Mile Wash 1 0/0/01 N-W Near the alignments of 1 st Ave. and Glendale Ave. Tiger Wash Fan 10 09//9 N-W mi. W of Eagle Eye Rd. and mi. N of Salome Highway Upper Grass Wash 1 /01/0 N-8W miles SE of Aguila Narrows Dam 10 09/01/9 N-1W mi. SE of Salome off Salome Highway Grass US /19/01 N-9W- 1 mile west of Aguila on US 0 Tiger Wash 10 09/1/99 N-W mi. N of the Eagle Eye Rd. / Salome Highway intersec tion Outlaw Hill 1 0/1/0 N-W- 0 South of US 0, 1 miles east of Aguila Gladden 0/0/8 N-W US 0 at Gladden, miles W of Wickenburg Centennial near Aguila 1 0/0/01 N-8W mi. NNE of the US 0 / SR 1 junction Centennial Wash 0 /19/81 N-W mi. N of US 0, 19 mi. W of Wickenburg Harquahala Mtn. 0//9 N-W Top of Harquahala Mtn., mi. WSW of Wickenberg Smith Peak 190 0/0/80 8N-W Harcuvar Mtns., 1 mi. NW of Aguila Dead Horse Wash 19 /01/00 N-W Near Aguila Road, 1 miles SE of Aguila Buckeye FRS #1 00 0//8 1N-W West end of Buckeye FRS #1, Hassayampa River Buckeye FRS # 0 //9 1N-W-0 0 West end of Buckeye FRS #, mi N of Buckeye viii TABLE I

10 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Hassayampa Landfill 0/1/9 1S-W mi. NW of Hassayampa Jackrabbit Wash 09/1/8 N-W mi. NNE of Tonopah, 0 mi. SSW of Wickenburg Morristown 0 0/1/9 N-W US 0/9 at Morristown, mi. SE of Wickenburg Hassy US 0 0/1/9 N-W Hassayampa River at US 0/9 in Wickenburg Sunset FRS 0 0/1/89 N-W- 0 0 / mi. WSW of the US 0 / US 9 intersection in Wickenburg Belmont Mountains 0 1/1/0 N-W miles SW of the Aguila/Wickenburg Roads intersection Sunnycove FRS 0/1/8 N-W mi. SW of the US 0 / US 9 intersection in Wickenburg Twin Peaks 0 0//0 N-W-0 9 miles southwest of Wickenburg Vulture Mine 0 /1/81 N-W-1 0 mi. SW of Wickenburg Coyote Wash //0 N-W mi. SW of the intersection of Aguila and Wickenburg Roads Box Wash 0 0//0 N-W miles southwest of Wickenburg Sols SR 1 09//81 9N-W / mile SW of the SR 1 / US 9 intersection Hassayampa I- 80 /09/9 1N-W-0 I- bridge over Hassayampa River, 1 mi WNW of Buckeye Yarnell Hill 90 0/1/81 N-W mi. ENE of Yarnell, Yavapai County Hassy Box Canyon 0 /1/8 8N-W mi. N of Wickenburg on Hassay ampa River, Yavapai County O'Brien 0 /0/8 9N-W mi. NE of Wickenburg, Yavapai County Minnehaha 0/1/81 N-1W mi. E of Wagoner, Yavapai County Towers Mtn. 0 0/01/9 N-1W mi. NW of Crown King, Yavapai County Hassy Wagoner Rd. 0 1/19/8 N-W mi. ESE of Kirkland Junction Wilhoit 09//81 1N-W- 0 At Wilhoit, mi. SSW of Prescott, Yavapai County Mt. Union 80 08/1/8 1N-W-01 9 Top of Mt. Union, mi. SSE of Prescott Agua Buckeye 00 //88 1N-1W Buckeye Rd. Bridge over Agua Fria River, nr Avondale El Mirage 0 0/9/9 N-1W / mi. N of Camelback and El Mirage Rd. Dysart LAFB 08//9 N-1W / mi. West of Northern Ave. & Litchfield Rd. White Tanks 1 0/1/8 N-W mi. N of I- on Jackrabbit Trail alignment Ford Canyon Wash 0/0/0 N-W Alignments of Cactus Road and Tuthill Road White Tanks E. Peak 0 0/1/80 N-W Top of White Tank Mtns., 1 mi. N of Buckeye McMicken Floodway 09/0/9 N-1W / mi. N of Grand Ave. and Deer Valley Rd. McMicken Dam South 0 0/1/0 N-W / mi. N of the Peoria and 19th Ave. alignments McMicken Dam 0//8 N-W N. end of the dam, 1/ mi SE of Deer Valley Rd and Cotton Ln Patton Rd. 0 0/1/9 N-W- 8 mi. E of Grand Ave. on Patton Rd. Wittmann 0/1/9 N-W US 0/9 at Wittmann, mi. SE of Circle City Chrysler P. Grounds 0 /1/90 N-W mi. ESE of Circle City, 1. mi. N of Wittmann NW Regional Landfill 0//9 N-W Near 19th Ave. and Deer Valley Rd. 1 rd Ave. 0 1//0 N-1W CAP canal at 1 rd Ave. Circle City 09/1/8 N-W Along US 0/9, 1 mi. SE of Wickenburg Upper Trilby Wash 8 09//01 N-W On Trilby Wash,. miles N of Castle Hot Springs Road Castle Hot Springs 90 /0/81 N-W- 1 8 mi. NE from US 0/9 on Castle Hot Springs Rd. Agua Grand Ave. 00 0//9 N-1E- 1 Grand Ave. bridge at Agua Fria River New Glendale 0 0//90 N-1E / mi. E of 99th Ave. on Glendale Ave. bridge Bell Rd. /19/9 N 1W Dysart Rd. at Bell Rd., Surprise ix TABLE I

11 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Sun City West 1 0/0/9 N-1W / mi. SE of the Beardsley Rd. & Litchfield Rd. alignments th Ave. 0 0/0/90 N-1E th Ave. Bridge at Arizona Canal, Glendale Peoria Ave. 0//9 N-1E Intersection of Grand Ave. and Peoria Ave. Adobe Dam /8/8 N-E / mi. South of Deer Valley Rd. & rd Ave. Upper Cline Creek //01 N-E miles east of New River Deer Valley Airport 0 01//91 N-E Deer Valley Rd. and th Ave. Fig Springs /1/01 N-E miles east of New River Skunk I-1 //89 N-E- 0 1 I-1 at Jomax Rd. alignment Upper Skunk Creek 80 09/19/80 N-E mi. E of New River Skunk Cr. nr New River 8 0/8/01 N-E Skunk Cr. at Fig Springs Road,. miles E of New River New Bell Rd. 9 0/0/90 N-1E Bell Road at 8rd Ave. New River Dam 0/1/8 N-1E / mi. NE of Jomax Rd. and 8rd Ave. Sunup Ranch 0//8 N-E mi. SSW of New River New River Landfill 0 0/9/9 8N-E mi. ENE of New Waddell Dam Cooks Mesa 0 0//8 8N-E mi. E of Black Canyon City in the New River Mtns. Lake Pleasant North 0 0//01 N-1E On Deer Island, north end of Lake Pleasant Garfias Mtn. 0 0/1/81 N-W-01 mi. WSW of Castle Hot Springs, off Castle Hot Springs Rd. Columbia Hill 8 0/8/81 8N-1W mi. NNW of Castle Hot Springs Horsethief Basin 00 //8 9N-1E At HB Recreation Area, mi. SE of Crown King Crown King 1 0//8 N-1W Crown King, Bradshaw Mtns, mi. SSE of Prescott Sunset Point 0 0/09/81 9N-E Sunset Point Rest Area on I-1, mi. N of Black Canyon City Horseshoe Ranch 0/09/8 N-E mi. SE of Cordes Junction Horner Mtn. Ranch 0 0/1/81 N-E mi. ENE of Cordes Junction Arizona Hunt Club 0//81 1N-E mi. NNW of Cordes Junction /0/8 1N-E I-1 at SR 19 (Cherry Rd.) Dewey 80 0//81 1N-E mi. E of Dewey off Orme Ranch Rd. Prescott Valley 80 1/0/8 1N-1E mi. N of the intersection of SR 9 and Roberts Rd. Horseshoe Lake /0/00 N-E Horseshoe Lake- Sw Corner near Boat Rramp Asher Hills /0/90 N-E Off Asher Dr. in McDowell Mtn. Park, 1 mi. W of Rio Verde Bartlett Lake 9 08/1/00 N-E Bartlett Lake Sheriff Sub-station McDowell Mtn. Park 91 08/0/90 N-E Palisades Dr. in McDowell Mtn. Park, mi. WSW of Rio Verde Fraesfield Mtn. 90 0/8/89 N-E Near the alignments of Dixaleta Dr. and 18th St. Thompson Peak 9 0//80 N-E On Thompson Peak, 10th St. and Bell Rd. alignments Fountain Hills 90 1/09/9 N-E At Palisades Blvd. Fire Station, nr xsecn with Fntn. Hills Blvd. Mt. Ord 90 0/01/8 N-9E Top of Mt. Ord, mi. E of Sunflower in the Mazatzal Mountains Stone Ridge Dam 9 1//9 N-E / mi. W. of Cholla Dr. and Fountain Hills Blvd. SunRidge Canyon Dam 90 //9 N-E yards W. of Lago Blvd and Palisades Blvd. Cloudburst Wash 9 0/1/9 N-E mi. NW of SunRidge Golf Course, Fountain Hills North Heights Dam 980 //9 N-E yards SW of Sierra Madre Dr. and Golden Eagle Blvd. Golden Eagle Blvd. 98 /1/9 N-E NW1/ of Section at Chaparral Water Tank Hesperus Dam 990 1//9 N-E / mi. N. of Richwood Ave. and Golden Eagle Blvd. x TABLE I

12 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Hesperus Wash 99 0//9 N-E NW1/ of TN-RE-Section 1 near Dixie Mine Guadalupe FRS 00 0/9/89 1S-E / mi. SSW of Baseline Rd. and I- South Mountain Park 09/8/8 1S-E Alignments of Elliot Rd. and th St. Carriage Lane Park 0 0//91 1S-E / mi. South of Price Rd. and Guadalupe Rd. South Mtn. Park HQ 0/01/9 1S-E Alignments of Elliot Rd. and th Ave. Alma Schl 0 0//9 1S-E / mi. SE of Chandler Blvd. and Alma School Rd. Mesa Tower 0 0/19/89 1N-E / mi. NW of McQueen Rd. and Baseline Rd. Lindsay 09/9/9 1N-E / mi. E of Broadway Rd. & Lindsay Rd. Ahwatukee 0 0/0/9 1S-E / mi. South of the rd Ave. and Warner Rd. alignments South Mountain Fan 0 0/09/9 1S-E Alignments of Ray Rd. and th Ave. in S. Mtn. Park Broadway 0 08//89 1N-E / mi. SSE of Broadway Rd. and Higley Rd. Williams Field Rd. 0/0/01 1S-E / mi. N of Williams Field Rd. and Meridian Queencreek Rd //89 S-E / mi. West of Queen Creek Rd. and Higley Rd. Hawes Rd. 90 0//01 1S-E NE corner of Elliot Rd. and Hawes Rd. Arizona Ave. 9 0//89 S-E On the SR 8 bridge mi. South of Riggs Rd. Guadalupe Channel 00 08/0/98 1S-E / mi. E of Power Guadalupe Rd. Freestone Basin 0 1/19/9 1S-E / mi. SSE of Guadalupe Rd. and Lindsay Rd. Queen Creek Rd. 0/1/8 S-E / mi. NE of Queen Creek Rd. and Ellsworth Rd. Queen Creek Landfill 1 0//9 S-E / mi. SW of Ocotillo Rd. and Ellsworth Rd. Crossroads Park 0 1//9 1S-E / mi. NW of Ray Rd. and Greenfield Rd. Signal Buttes FRS //8 1N-E / mi. NE of Signal Butte Rd. and Brown Rd. Usery Mtn. Park 0 0/0/8 N-E / mi. East of the McDowell Rd. and Crismon Rd. alignments Usery Park WS 0 0//9 N-E / mi. WNW of the Crismon Rd. and Thomas Rd. alignments Thunder Mtn. 0/1/8 N-E / mi. W. of the Ellsworth Rd. and Indian School Rd. alignments Apache Junction FRS 0 1/1/81 1N-8E / mi. NW of Lost Dutchman Blvd. and Idaho Rd. Apache Trail 0/1/9 1N-8E / mi. NE of Broadway Rd. and Idaho Rd. Powerline FRS 80 1/0/9 1S 8E Alignments of Idaho Rd. and Warner Rd. Vineyard FRS 8 /0/8 1S-8E Alignments of Tomahawk Rd. and Williams Field Rd. Rittenhouse FRS 00 09//88 S-8E Alignments of Goldfield Rd. and Germann Rd. Queen Rittenhouse 09/1/9 S-E / mi. SE of the Signal Butte and Chandler Heights alignments Magma FRS 1 //88 S-9E mi. NNW of Florence Queen CAP 0 01/1/99 S-8E Queen Creek at Central AZ Project Florence Junction 0 0//8 1S-9E mi. NW of Florence Junction Whitlow Ranch Dam 0 01/08/99 1S-E mi. NE of Florence Junction Kings Ranch 09/1/81 1N-9E mi. ESE of Apache Junction Saguaro Lake 80 01//00 N-8E MCSO yard, NW corner of the Lake Buckeye FRS # 8 //9 1N-W / mi. NE of I- and Watson Rd. White Tanks 80 01/09/8 1N-W / mi. NE of Tuthill Rd. and Van Buren St. Rainbow 80 0//99 S-W Rainbow Valley Rd. at Queen Creek Rd. Buckeye SR /0/00 1S-W / mi. E of SR 8 on Buckeye Rd. Ray Rd. 80 1//9 1S-W / mi. East of Tuthill Rd. and Ray Rd. xi TABLE I

13 Sensor Name Sensor ID Installed T-R-S Latitude Longitude Elevation Location Estrella Pkwy. 80 0/8/89 1N-1W Gila River at Estrella Parkway Holly Acres 80 01//89 1N-1E / mi. SW of Southern A ve. and th Ave. Waterman Wash 880 0/1/8 S-1W El Mirage Rd. and Riggs Rd. alignments Estrella Fan 890 /1/9 S-1W Alignments of El Mirage Rd. and Germann Rd. Upper Waterman Wash 900 0//88 S-W mi. WNW of Mobile Gillespie Dam 90 0/1/9 S-W Gila River at Old US 80 Gila Bend Landfill 9 0/0/9 S-W mi. North of the intersection of US 80 and I-8 Sauceda Wash 90 0/8/90 S-W-0 mi. SSW of Gila Bend Sand I /8/01 S-W On I-8 bridge south of Gila Bend Sand Tank Wash 90 0//8 S-W mi. SSE of Gila Bend Gila th Ave. 8 1/1/98 1N-1W ¼ mile NNW of th Ave. and Baseline Rd. Rainbow Valley Wash 90 /0/00 S-W miles south of Buckeye on SR 8 Bender Wash 90 01/1/8 S-W Just North of I-8, mi. East of Gila Bend Vekol Wash 980 0/0/90 S-1E On I-8 bridge, halfway between Gila Bend and Casa Grande Stanton 000 0/1/9 N-W mi. East of Congress, Yavapai County Mid-Martinez Creek 00 0//9 9N-W mi SSE of the US 89 / SR 1 junction Martinez Creek 0 //9 8N-W mi. East of the US 9 / US 89 junction Congress 00 0/1/9 N-W Junction of US 89 and SR 1 Sols SR 9 0 0/0/9 8N-W miles NW of the US 9 / US 89 junction Sols Tank 00 0//9 9N-W mi. WNW of the US 9 / US 89 junction Black Hill 0 0/1/9 8N-W miles WSW of the US 9 / US 89 junction Sols Wash nr Matthie 00 08/0/9 8N-W Sols Wash at SPRR bridge, mi. N. of Wickenburg Airport Black Mountain 00 0/0/9 N-W Along US 0, 9 mi. West of US 0 / US 9 Hartman Wash 00 0/0/9 N-W On US 0 bridge,. mi. West of US 0 / US 9 Flying E Tank 00 0/09/9 N-W mi. WSW of the US 9 / US 89 junction at Wickenburg Flying E Wash 080 0/1/9 N-W On US 0 bridge, mi. West of US 0 / US 9 Casandro Wash 090 0/1/9 N-W- 0 On US 0 bridge, mi. West of US 0 / US 9 Constellation Road 0 08/0/9 8N-W mi. NE of the US 0 / US 9 junction Powder House Wash 0 0//9 N-W / mi. NE of US 0 and Constellation Rd., Wickenburg Wickenburg Airport 10 08/0/9 N-W mi. West of the US 0 / US 9 junction Casandro Dam 08/1/9 N-W miles west of the US0 / US9 junction Centennial Divide 1 08//01 8N-W miles west of the US89 / US9 junction Ritter Dam 10 //0 8N-W miles NE of Aguila Wood Tank 1 /0/0 8N-8W miles NNE of Aguila Joshua Tree 10 0/0/0 N-W miles NW of the SR1 / US9 junction Burton Tank 1 0/19/0 9N-W miles SSW of Congress Bucks Well 10 1//0 N-W miles west of Congress Antelope Creek 1 0/09/0 8N-W miles NNW of Wickenburg Upper Martinez Cr. 0//0 N-W miles WSW of Yarnell xii TABLE I

14 Table II - 1 Precipitation Sensors Installed in Water-Year 00 Sensor Name Sensor ID Date Installed Location Upper Grass Wash 1 /01/ 00 miles SE of Aguila Wood Tank 1 /0/00 8 miles NNE of Aguila Ritter Dam 10 //00 9 miles NE of Aguila Coyote Wash //00. miles SW of the Aguila/Wickenburg Roads intersection 1 rd Ave. 0 1//00 CAP canal at 1 rd Ave. Bucks Well 10 1//00. miles west of Congress Belmont Mountains 0 1/1/00.8 miles SW of the Aguila/Wickenburg Roads intersection Box Wash 0 0//00 9 miles southwest of Wickenburg Twin Peaks 0 0//00 miles southwest of Wickenburg Cave Creek 890 0/9/00 1 mile west of Cave Creek Town Hall Eagle Eye CAP 0 0/1/00 1. miles S of Salome Highway on Eagle Eye Rd. G&F Woolsey Peak 00 0//00 8 miles SW of Gillespie Dam Antelope Creek 1 0/09/00. miles NNW of Wickenburg Table III - Rain Gage Failure Statistics for Water-Year 00 (A "Failure" is a continuous 8-hour period when no data is received) FAILURE TYPE Failures - 00 Failures - 00 Failures Failures 000 Unknown 9 Programming Error 1 1 Battery Transmitter 1 8 Tipping Bucket / Plugged Funnel 1 Antenna 9 8 Repeater 0 1 Vandalism 1 8 Solar Panel Winds/Lightning/Fire 0 0 Radio Path Radio xiii

15 Table IV ALERT Rain Gages: Water-Year Totals for 00, 00, 001 & 000 Gage Name ID # Inches - 00 Notes Inches - 00* Inches - 001* Inches-000* Sacaton Peak Tat Momolikot Dam Maricopa Rd Olberg Santa SR Santa SR Cesar Chavez Park nd St Salt 0th St Salt Priest Dr ASU South Kleinman Park NA Dobson..8 NA.8 Fitch Park Brown Horne.9.0 NA.9 Mountain View Park 0. NA.. Falcon Field.. NA. Spookhill FRS Price NA NA Salt River Landfill Reata Pass Wash NA NA Union Hills Pinnacle Peak Vista McKellips Rd NA NA th St NA. Indian Bend Rd Indian School IBW Interceptor th St Thunderbird Academy Tatum Basin Rain Sweetwater East Fork CC # Paradise Valley Park East Fork CC # Lost Dog Wash EFCC nr th Ave Jomax Lake Marguarite East Fork CC # Berneil Wash Shea Blvd Aztec Park Durango Complex th Ave th Ave th St Perry Park Papago Park Old McDowell th St Salt th Ave Maryvale Muni Golf NA

16 Gage Name ID # Inches - 00 Notes Inches - 00* Inches - 001* Inches-000* th Ave City of Glendale th Ave th St Butler Park Paradise Valley CC Dreamy Draw Dam th St th St th St. Wash Basin # rd Ave Phoenix Basin # 8 8. NA NA NA Cave Cactus Cave Creek nd Ave Phoenix Basin # Phoenix West Park NA NA NA Rawhide Wash Cave Creek NA NA NA Cave Buttes Dam Stagecoach Wash NA NA Cave Creek Landfill Cave Cr.@ Spur Cross NA Carefree Ranch Reata Pass Dam Humboldt Mtn Seven Springs Seven Springs Wash NA NA NA Mt. Oatman Columbus Wash Copper Wash NA NA th of July Wash 00.8 NA NA NA Gila Bend Mountains G&F Woolsey Peak NA NA NA Eagle Eye CAP 0. 1 NA NA NA th Ave NA NA Cruff Wash 0. NA NA NA th Ave NA th Ave NA Wenden Webb Mountain 09.1 NA NA NA Centennial Railroad Delaney Wash NA Saddleback FRS Winters Wash NA Centennial Levee 10., Harquahala FRS Upper Tiger Wash Four Mile Wash NA NA Tiger Wash Fan Upper Grass Wash 1. 1, NA NA NA Narrows Damsite Grass US NA NA Tiger Wash Outlaw Hill NA NA NA Gladden Centennial near Aguila 1.8. NA NA Centennial Wash

17 Gage Name ID # Inches - 00 Notes Inches - 00* Inches - 001* Inches-000* Harquahala Mtn Smith Peak NA Dead Horse Wash NA NA Buckeye FRS # Buckeye FRS # Hassayampa Landfill Jackrabbit Wash Morristown Hassy US Sunset FRS Belmont Mountains NA NA NA Sunnycove FRS Twin Peaks NA NA NA Vulture Mine Rd Coyote Wash 9. 1 NA NA NA Box Wash 0. 1 NA NA NA Sols SR Hassayampa I Yarnell Hill Hassy Box Canyon O'Brien Gulch Minnehaha NA NA Towers Mtn Hassy Wagoner Rd Wilhoit Mt. Union Agua Buckeye El Mirage Dysart LAFB White Tank FRS # Ford Canyon Wash.9 NA NA NA White Tank Peak McMicken Floodway McMicken Dam South 0 8. NA NA NA McMicken Dam..0.. Patton Rd Wittmann Chrysler Proving Ground NW Regional Landfill rd Ave NA NA NA Circle City Upper Trilby Wash NA NA Castle Hot Springs Agua Grand Ave New Glendale NA Bell Rd Sun City West th Ave Peoria Ave Adobe Dam Upper Cline Creek.8 NA NA NA Deer Valley Airport Fig Springs. NA NA NA Skunk I Cline Creek Skunk Cr. near New R NA NA New Bell Rd New River Dam

18 Gage Name ID # Inches - 00 Notes Inches - 00* Inches - 001* Inches-000* Sunup Ranch New River Landfill Cooks Mesa Lake Pleasant North 0.9. NA NA Garfias Mtn Columbia Hill Horsethief Basin Crown King NA. Sunset Point Horseshoe Ranch Horner Mtn. Ranch Arizona Hunt Club SR Dewey Prescott Valley Horseshoe Lake NA Asher Hills Bartlett Lake NA McDowell Mtn. Park Fraesfield Mtn Thompson Peak Fountain Hills Fire Mt. Ord Stone Ridge Dam SunRidge Canyon Dam Cloudburst Wash North Heights Dam Golden Eagle Blvd Hesperus Dam NA. Hesperus Wash Guadalupe FRS South Mountain Park Carriage Lane Park South Mtn. Park HQ Alma School Mesa Tower Lindsay..8 NA.9 Ahwatukee South Mountain Fan Broadway Williams Field Road..8 NA NA Queen Creek Rd Hawes Road NA NA Arizona Ave Guadalupe Channel Freestone Basin Queen Creek Rd Queen Creek Landfill Crossroads Park Signal Butte FRS Usery Mtn. Park Usery Park WS Thunder Mtn Apache Junction FRS Apache Trail Powerline FRS Vineyard FRS Rittenhouse FRS

19 Gage Name ID # Inches - 00 Notes Inches - 00* Inches - 001* Inches-000* Queen Rittenhouse Magma FRS Queen CAP Florence Junction Whitlow Ranch Dam NA Kings Ranch Saguaro Lake NA Buckeye FRS # White Tank FRS # Rainbow Buckeye SR NA Ray Rd th Ave Estrella Pkwy NA.8.8 Holly Acres Upper Estrella Fan Waterman Wash Estrella Fan Upper Waterman Wash Gillespie Dam Gila Bend Landfill Sauceda Wash Sand I NA NA Sand Tank Wash Rainbow Wash NA NA Bender Wash Vekol Wash Stanton Mid-Martinez Creek Martinez Creek Congress Sols US Sols Tank Black Hill Sols Wash near Matthie Black Mountain Hartman Wash Flying E Tank Flying E Wash Casandro Wash Constellation Road Powder House Wash NA Wickenburg Airport Casandro Dam Centennial Divide 1.9. NA NA Ritter Dam NA NA NA Wood Tank NA NA NA Joshua Tree 10.1 NA NA NA Burton Tank NA NA NA Bucks Well NA NA NA Antelope Creek NA NA NA Upper Martinez Creek 1.80 NA NA NA

20 Notes Apply to Water-Year 00 Values Only Note 1: Gage installed during Water-Year 00, no total given. Note : Total is inaccurate due to gage failure during an event at one or more times during the Water-Year, or the gage was taken out of service. Note : Water-Year total contains one or more estimated event totals. Estimated totals are included in the data set used to produce Figure. Note : Total not included in annual rainfall plot (Figure ) by reason of high-wind profile or detrimental physical modification.

21 TABLE V Water-Year 00 & 00 Rainfall Statistics Statistic Value Location Date Notes Highest Maximum Daily Rainfall Mt. Union Horner Mtn. Ranch Feb. 1th Sep. th Lowest Maximum Daily Rainfall Rittenhouse FRS Sauceda Wash Feb. 1th Sep. th Highest Maximum Monthly Rainfall Mt. Union, Yarnell Hill Horsethief Basin Mar., Feb. Sep. Lowest Maximum Monthly Rainfall Sacaton Peak Sauceda Wash Feb. Dec. Highest Annual Total Rainfall Mt. Union Horsethief Basin Lowest Annual Rainfall Total Vineyard FRS Gila Bend Mtns. Highest Number of Days with Rain Mt. Union Mt. Union Lowest Number of Days with Rain Copper Wash Gila Bend Mtns. Average Number of Days with Rain for All Sensors Median Number of Days with Rain for All Sensors Average Annual Total for All Stations Median Annual Total for All Stations Average Percent of Annual Mean for All Stations Highest Percent of Annual Mean Lowest Percent of Annual Mean % 00 1.% % % % % - 00 Circle City Holly Acres Vineyard FRS Gila Bend Mtns. Includes only stations with or more complete water-years of record 1.0 /..1 /.8.8 / /.99

22 Water-Year Hyetographs for Six Selected Gages

23

24

25 Daily Rainfall at Sacaton Peak (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0. Maximum Monthly Rainfall 1. Total Annual Rainfall. Total annual rainfall in millimeters: 8 Number of Days with Rain 19

26 Daily Rainfall at Tat Momolikot Dam (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1. Maximum Monthly Rainfall.1 Partial Annual Rainfall. Number of Days with Rain 8 Partial annual rainfall in millimeters: 1 Total down-time:.88 days Gage 00 event missed in February due to plugged funnel; no estimate made; inaccurate monthly and annual totals. Gage 00 down from / 0: (1) through /8 09: (1) due to battery failure; no rain fell.

27 Daily Rainfall at Gila Maricopa Rd (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.91 Maximum Monthly Rainfall 1. Total Annual Rainfall.9 Number of Days with Rain Total annual rainfall in millimeters: 1 Total down-time:. days Gage 0 down from / 09: (1) through / 0: (1) due to programming error; no rain fell.

28 Daily Rainfall at Gila Olberg (gage # 80) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1.1 Maximum Monthly Rainfall.0 Total Annual Rainfall. Number of Days with Rain Total annual rainfall in millimeters: 1 Total down-time:.1 days Gage 080 down from 9/ 0:1 (19) through 9/9 :8 (19) due to programming error; no rain fell.

29 Daily Rainfall at Santa SR 8 (gage # 8) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1. Maximum Monthly Rainfall.09 Total Annual Rainfall.8 Total annual rainfall in millimeters: 1 Number of Days with Rain

30 Daily Rainfall at Santa SR 8 (gage # 9) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1. Maximum Monthly Rainfall 1. Total Annual Rainfall. Total annual rainfall in millimeters: Number of Days with Rain

31 Daily Rainfall at Cesar Chavez Park (gage # 00) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.9 Maximum Monthly Rainfall.0 Total Annual Rainfall. Total annual rainfall in millimeters: 1 Number of Days with Rain

32 Daily Rainfall at nd St. (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.91 Maximum Monthly Rainfall. Total Annual Rainfall. Total annual rainfall in millimeters: 1 Number of Days with Rain

33 Daily Rainfall at Salt 0th St. (gage # 1) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.8 Maximum Monthly Rainfall. Total Annual Rainfall.9 Total annual rainfall in millimeters: 1 Number of Days with Rain

34 Daily Rainfall at Salt Priest Dr. (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1. Maximum Monthly Rainfall.8 Total Annual Rainfall.98 Number of Days with Rain Total annual rainfall in millimeters: 1 Total down-time:.0 days Gage 0 down from 8/8 1: (11) through 9/01 01: (11) due to battery failure; no rain fell.

35 Daily Rainfall at ASU South (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.9 Maximum Monthly Rainfall. Total Annual Rainfall.0 Total annual rainfall in millimeters: 1 Number of Days with Rain 9

36 Daily Rainfall at Kleinman Park (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0. Maximum Monthly Rainfall.8 Total Annual Rainfall. Number of Days with Rain Total annual rainfall in millimeters: 11 Total down-time:. days Gage 0 down from /19 0: (8) through / 1:0 (8) due to battery failure; no rain fell.

37 Daily Rainfall at Dobson (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0. Maximum Monthly Rainfall.8 Total Annual Rainfall. Total annual rainfall in millimeters: 1 Number of Days with Rain

38 Daily Rainfall at Fitch Park (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.8 Maximum Monthly Rainfall. Total Annual Rainfall.0 Total annual rainfall in millimeters: 10 Number of Days with Rain

39 Daily Rainfall at Brown Horne Rd. (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.9 Maximum Monthly Rainfall. Total Annual Rainfall.9 Total annual rainfall in millimeters: 1 Number of Days with Rain 1

40 Daily Rainfall at Mountain View Park (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0. Maximum Monthly Rainfall.1 Partial Annual Rainfall. Partial annual rainfall in millimeters: 9 Gage 0 restored to service on 0/0/0. Number of Days with Rain

41 Daily Rainfall at Falcon Field (gage # ) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.1 Maximum Monthly Rainfall.80 Total Annual Rainfall. Total annual rainfall in millimeters: 19 Number of Days with Rain

42 Daily Rainfall at Spookhill FRS (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 0.98 Maximum Monthly Rainfall.09 Total Annual Rainfall.91 Total annual rainfall in millimeters: 10 Number of Days with Rain

43 Daily Rainfall at Price 0 (gage # 0) for Water Year SUM ACC MAX NO Maximum Daily Rainfall 1. Maximum Monthly Rainfall. Total Annual Rainfall.8 Total annual rainfall in millimeters: 190 Number of Days with Rain