White Tank FRS #3 - ID # 87307

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Page Last Updated: 04 November 2025

ID History | Site Data | Brief Rating | Water Year Peaks | Impound History | Staff Gages

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GAGE ID AND DATUM HISTORY

ID Elevation of
Instrument
in Gage Height		 Elevation of
Instrument
in Datum		 Period
87307 0.15 feet 1,191.15 feet NAVD88 04/01/2021 -- Current
87307 1.50 feet 1,192.50 feet NAVD88 05/05/2020 -- 04/01/2021
5418 1.50 feet 1,192.50 feet NAVD88 04/01/2014 -- 05/05/2020
5418 1.50 feet 1,192.40 feet NAVD88 11/14/2013 -- 04/01/2014
5418 0.00 feet 1,196.30 feet NAVD88 06/18/2008 -- 11/14/2013
5418 0.00 feet 1,190.27 feet M.S.L. 08/06/1992 -- 12/14/2005
1638 0.00 feet 1,186.60 feet M.S.L. 10/01/1987 -- 08/06/1992
0085 0.00 feet 1,186.60 feet M.S.L. 03/12/1986 -- 09/30/1987

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SITE DATA

STATUS Active
LOCATION Located on the eastern foothills of the White Tank Mountains, south of Northern Avenue
DRAINAGE AREA 20.5 mi2
STREAM TYPE Impounding of natural drainage
JURISDICTION Maricopa County, Arizona
WATERSHED White Tanks B
SECTION/TOWNSHIP/RANGE S09 T2N R2W
LATITUDE N 33° 31' 56.0"  |  +33.53322
LONGITUDE W 112° 28' 19.2"  |  -112.47199
ARIZONA STATE PLANE E 531079  | N 922261
USGS QUAD SHEET Waddell 7.5-Minute
STREAMGAGE INSTALLATION DATE 03/12/1986 - WY 1986
PERIOD OF AVAILABLE DATA RECORD 01/01/1988 - Current
LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2024) 36.75 Years | 13,423 Days
GAPS (> 2 DAYS) IN RECORD 12/14/2005 - 06/18/2008
STAGE GAGE TYPE Pressure Transducer
STAGE GAGE ELEVATION 0.15 feet Gage Height
STAFF GAGES 5
CREST STAGE GAGES 0
ZERO GAGE HEIGHT ELEVATION 1,191.00 feet NAVD 1988
POINT OF ZERO FLOW (CONTROLLED) 0.00 feet Gage Height
POINT OF ZERO FLOW (CONTROLLED BYPASS OUTLET) 6.0 feet Gage Height
POINT OF ZERO FLOW (UNCONTROLLED) 9.0 feet Gage Height
SPILLWAY ELEVATION 21.0 feet Gage Height
TOP OF DAM ELEVATION 27.0 feet Gage Height

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BRIEF RATING

Current Discharge Rating = #4 - Applied since 03/10/2021
Current Capacity Rating = #4 - Applied since 06/18/2008
(NOTE(1): Capacity rating updated on 03/23/2011 based on new data from EAP.)
(NOTE(2): Discharge rating below spillway assumes gates have been opened.)
Gage
Height
(feet)		 Elevation
(feet NAVD 88)		 Volume
(acre-feet)		 Discharge
(cfs)
Gated outlet		 Discharge
(cfs)
Ungated outlet		 Discharge
(cfs)
Spillway		 Discharge
(cfs)
Combined
0.00 1,191.00 73 0 0 0 0
1.00 1,192.00 93 0 0 0 0
3.00 1,194.00 154 0 0 0 0
6.00 1,197.00 327 0 0 0 0
7.00 1,198.00 404 5 0 0 5
9.00 1,200.00 597 50 0 0 50
11.00 1,202.00 858 105 120 0 225
15.00 1,206.00 1,670 161 210 0 371
19.00 1,210.00 2,820 202 242 0 444
21.00 1,212.00 3,502 221 257 0 478
22.00 1,213.00 3,868 229 264 2,300 2,793
25.00 1,216.00 5,086 253 284 25,000 25,537
27.00 1,218.00 6,004 267 296 45,000 45,563

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WATER YEAR PEAKS

Water
Year		 Peak
Gage Height
(feet)		 Peak
Volume
(acre-feet)		 Percent
Full
(Available Storage Capacity)		 Date of
Peak
2026        
2025 None 0 0.0 None
2024 None 0 0.0 None
2023 None 0 0.0 None
2022 None 0 0.0 None
2021 1.70 111 3.2 07/25/2021
2020 2.04 119 3.5 11/20/2019
2019 2.33 130 3.8 09/24/2019
2018 None 0 0.0 None
2017 None 0 0.0 None
2016 None 0 0.0 None
2015 None 0 0.0 None
2014 9.00 587 17 09/08/2014
2013 None 0 0.0 None
2012 None 0 0.0 None
2011 None 0 0.0 None
2010 None 0 0.0 None
2009 None 0 0.0 None
2008 None 0 0.0 None
2007 None 0 0.0 None
2006 None 0 0.0 None
2005 None 0 0.0 None
2004 0.28 131 3.7 10/10/2003
2003 1.83 175 5.0 09/04/2003
2002 None 0 0.0 None
2001 None 0 0.0 None
2000 None 0 0.0 None
1999 0.52 137 3.9 04/02/1999
1998 0.25 130 3.7 02/18/1998
1997 None 0 0.0 None
1996 None 0 0.0 None
1995 None 0 0.0 None
1994 None 0 0.0 None
1993 2.60 249 7.1 01/11/1993
1992 2.60 249 7.1 09/20/1992
1991 0.70 82 2.3 03/26/1991
1990 None 0 0.0 None
1989 None 0 0.0 None
1988 (partial) 0.60 81 2.3 01/25/1988

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IMPOUNDMENT EVENT HISTORY

Date of
Peak		 Time of
Peak		 Runoff
Start		 Runoff
End		 Duration
(hours)		 Peak
Stage
(feet GH)		 Peak
Volume
(acre-feet)		 Water
Year
View a Plot of These Data
               
07/25/2021 10:28 07/25/2021 08:15 07/30/2021 00:00 111.8 1.70 111.0 2021
07/16/2021 23:07 07/16/2021 20:35 07/18/2021 18:00 45.4 1.31 0.0 2021
11/20/2019 05:57 11/20/2019 03:15 11/21/2019 23:00 43.8 2.04 119.0 2020
09/26/2019 08:38 09/26/2019 06:33 09/26/2019 12:41 6.1 2.28 128. 2019
09/25/2019 21:32 09/25/2019 21:28 09/26/2019 01:40 4.2 2.18 124. 2019
09/24/2019 01:57 09/24/2019 01:55 09/24/2019 12:00 10.1 2.33 130. 2019
09/08/2014 08:41 09/08/2014 05:30 09/20/2014 13:14 296 9.00 587 2014
10/10/2003 07:45 10/10/2003 07:35 10/10/2003 09:20 1.8 0.28 131 2004
09/04/2003 21:30 09/04/2003 21:00 09/05/2003 03:39 6.7 1.83 175 2003
04/02/1999 04:16 04/02/1999 03:28 04/02/1999 06:20 2.9 0.52 137 1999
02/18/1998 06:00 02/18/1998 06:00 single report 0.0 0.25 130 1998
01/11/1993 02:34 01/10/1993 21:07 01/12/1993 13:32 40.4 2.60 249 1993
09/20/1992 01:04 09/20/1992 00:13 09/20/1992 19:20 19.1 2.60 249 1992
03/26/1991 09:17 03/26/1991 08:40 03/26/1991 14:01 5.4 0.70 82 1991
03/20/1991 18:33 03/20/1991 18:08 03/20/1991 19:50 1.7 0.60 81 1991
03/01/1991 18:32 03/01/1991 18:00 03/01/1991 19:15 1.3 0.40 79 1991
01/25/1988 14:57 01/25/1988 07:14 01/26/1988 05:52 22.6 0.60 81 1990

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STAFF GAGES

Staff Gage Range Staff Gage Information
0 - 5 Displays 0.05 feet low. Add 0.05 to get gage height.
5 - 10 Displays 0.04 feet low. Add 0.04 to get gage height.
10 - 15 Displays 0.04 feet low. Add 0.04 to get gage height.
15 - 20 Displays 0.15 feet low. Add 0.15 to get gage height.
20 - 25 Displays 0.40 feet low. Add 0.40 to get gage height.
25 - 27 Not Surveyed

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