USGS Water-Year Summary for Site 09037500

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	Available Parameters
	00010 Temperature, water(Min.,Mean,Max.)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Mean,Min.,Max.)
	00300 Dissolved oxygen(Max.,Mean,Min.)
	00400 pH(Min.,Med.,Max.)
	63680 Turbidity, Form Neph(Min.,Med.,Max.)

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

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USGS Water-Year Summary 2023

09037500 WILLIAMS FORK NEAR PARSHALL, CO

LOCATION - Lat 40°00'00.72", long 106°10'49.32" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.31, T.1 N., R.78 W., Grand County, CO, Hydrologic Unit 14010001, on left bank 15 ft downstream from bridge on State Highway 286, 3.7 mi downstream from Skylark Creek, 3.9 mi south of Parshall, and 4.2 mi upstream from Williams Fork Reservoir Dam.

DRAINAGE AREA - 184 mi².

REVISIONS HISTORY - WSP 1243: 1918. WSP 2124: Drainage area. Peak streamflow qualifier: 2019, 2021, regulation code removed, Nov. 17, 2022.

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 1904 to September 1924, June 1933 to current year. Records since May 10, 1940, equivalent to earlier records if diversion to August P. Gumlick Tunnel is added to flow past station. Published as "near (Hot) Sulphur Springs", 1904-12, and as Williams River near Parshall, June 1933 to September 1958.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Datum of gage is 7,808.95 ft above NGVD of 1929, (Denver Board of Water Commissioners Datum). See WSP 1733 for history of changes prior to Aug. 9, 1938. Aug. 10, 1938 to Aug. 19, 1983, gage located on right bank at present datum. Aug. 19, 1983 to May 14, 1991, gage located 150 ft downstream of present site on left bank at present datum. May 14, 1991 to Sept. 24, 2003, gage located 20 ft downstream from present site on left bank and at present datum. Sept. 24, 2003 to Sept. 30, 2010, 30 ft downstream from present site at present datum. Since Sept. 30, 2010 at present site.

REMARKS - Water year 2014; records good except for estimated daily discharges, which are poor. Water year 2015; records good except for the period Aug. 5-27, and Sept. 17, which are fair, and estimated daily discharges, which are poor. Water year 2016; records good except for estimated daily discharges, which are poor. Water year 2017; records good except for the period June 20 to Sept. 30, which is fair, and estimated daily discharges which are poor. Water year 2018; records fair except for estimated daily discharges, which are poor. Water year 2019; records good except for the period Oct. 1 to Aug. 30, which is fair, and estimated daily discharges, which are poor. Water year 2020; records good except for estimated daily discharges, which are poor. Water year 2021; records good except for estimated daily discharges, which are poor. Water year 2022; records good except for estimated daily discharges, which are poor. Water year 2023; records good except for estimated daily discharges, which are poor. Transmountain diversion upstream from station through August P. Gumlick Tunnel (station 09035000) since May 10, 1940. Diversions for irrigation of about 1,300 acres upstream from station, and about 2,500 acres downstream from station. About 150 acres upstream from station irrigated by diversions into the drainage area. Prior to water year 2011, water year and period of record annual mean and annual runoff figures included diversions through August P Gumlick Tunnel.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,620 ft³/s, June 14, 1918, from rating curve extended above 1,400 ft³/s, gage height, 6.05 ft, site and datum then in use.