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Water-Year Summary for Site 11465200

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Available Parameters
00060 Discharge(Mean)  

Water year 2017: 2017-10-01 to 2018-09-30
 

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USGS Water-Year Summary 2017
11465200 Dry Creek near Geyserville, CA
LOCATION - Lat 38°41'55", long 122°57'25" referenced to North American Datum of 1927, Sonoma County, CA, Hydrologic Unit 18010110, in Tzabaco Grant, on left bank pier of bridge, 0.3 mi downstream from Pena Creek, 3.0 mi downstream from Warm Springs Dam, and 3 mi west of Geyserville.
DRAINAGE AREA - 162 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1959 to current year. CHEMICAL DATA: Water years 1971-81. WATER TEMPERATURE: Water years 1964-86. SEDIMENT DATA: Water years 1964-87. TURBIDITY: Water years 1964-86.
REVISED RECORDS - WDR CA-65-1: 1962 (instantaneous maximum discharge), 1963 (instantaneous maximum discharge).
GAGE - Water-stage recorder. Datum of gage is 156.40 ft above NGVD of 1929. Prior to Oct. 1, 1964, at datum 4.00 ft higher. Oct. 1, 1964, to Apr. 8, 1976, at datum 3.00 ft higher; Apr. 9, 1976, to Sept. 30, 1982, at datum 2.00 ft higher.
REMARKS - Records fair, except for estimated daily discharges which are poor. Small diversions upstream from station for irrigation of about 1,200 acres. Flow affected by storage in Lake Sonoma, 3.0 mi upstream, capacity, 380,600 acre-ft, beginning October 1983. See schematic diagram of Russian River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 32,400 ft³/s, Jan. 31, 1963, gage height, 20.50 ft, present datum; no flow at times. Maximum discharge since regulation by Lake Sonoma, 7,600 ft³/s, Jan. 8, 1995, gage height, 15.48 ft; minimum daily, 19 ft³/s, Oct. 18-25, 1984.