USGS Water-Year Summary for Site 09038500

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	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

09038500 WILLIAMS FORK BELOW WILLIAMS FORK RESERVOIR, CO

LOCATION - Lat 40°02'09.34", long 106°12'18.05" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.23, T.1 N., R.79 W., Grand County, CO, Hydrologic Unit 14010001, on left bank 400 ft downstream from Williams Fork Reservoir, 2.1 mi upstream from mouth, and 2.1 mi southwest of Parshall.

DRAINAGE AREA - 230 mi².

REVISIONS HISTORY - WSP 2124: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1948 to September 1954, August 1958 to current year. Monthly discharge only for some periods, published in WSP 1313. Prior to October 1958, published as Williams River below Williams Fork Reservoir.

GAGE - Water-stage recorder with satellite telemetry, crest-stage gage, and concrete control. Datum of gage is 7616.53 ft above NAVD of 1988, from GNSS survey. Elevation of gage is 7,615.00 ft above NGVD of 1929, from levels (Denver Board of Water Commissioners Datum). See WSP 1713 or 1733 for history of changes prior to Oct. 21, 1959.

REMARKS - Water year 2014; no estimated daily discharges. Records good. Water year 2015; no estimated daily discharges. Records good. Water year 2016; no estimated daily discharges. Records good. Water year 2017; no estimated daily discharges. Records good. Water year 2018; no estimated daily discharges. Records good. Water year 2019; no estimated daily discharges. Records good. Water year 2020; no estimated daily discharges. Records good. Water year 2021; no estimated daily discharges. Records good. Water year 2022; records good except for estimated daily discharges, which are poor. Water year 2023; no estimated daily discharges. Records good. Flow completely regulated by Williams Fork Reservoir (station 09038000). Transmountain diversion upstream from station through August P. Gumlick Tunnel (station 09036000). Diversions upstream from station for irrigation of about 3,200 acres and about 100 acres downstream from station. About 450 acres upstream from station irrigated by diversion into the drainage area. Prior to water year 2011, water year and period of record annual mean and annual runoff figures included adjustments for storage in Williams Fork Reservoir.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,640 ft³/s, June 20, 1953, from rating curve extended above 1,500 ft³/s, gage height, 8.50 ft, site and datum then in use.