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Water-Year Summary for Site 09517490

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
09517490 CENTENNIAL WASH AT SOUTHERN PACIFIC RAILROAD BRIDGE NEAR ARLINGTON, AZ
LOCATION - Lat 33°18'37", long 112°52'52" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 SW 1/4 sec.28, T.1 S., R.6 W., Maricopa County, AZ, Hydrologic Unit 15070104, on downstream side of bridge, 7.2 mi northwest of Arlington and 9.0 mi upstream from Gillespie Dam.
DRAINAGE AREA - 1,817 mi².
REVISIONS HISTORY - WDR AZ-91-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 15, 1980 to Sept. 30, 1985. Discontinued. Reestablished Feb. 15, 1990, by U.S. Geological Survey. Record estimated Oct. 1, 1989 through Feb. 14, 1990.
GAGE - Water-stage recorder. Datum of gage is 837.12 ft above sea level (Flood Control District of Maricopa County benchmark). Oct. 1, 1990 through May 13, 1999, at 4.00 ft higher. Datum of gage prior to Oct. 1, 1990, 841.06 ft, revised.
REMARKS - Records fair. Flow regulated by several small retention dams in upper end of basin. Small diversions above station for irrigation.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,600 ft³/s Sept. 2, 1984, gage height, 11.34 ft, from rating curve extended above 200 ft³/s on basis of step-back water analysis; no flow for many days each year.