USGS Water-Year Summary for Site 06700000

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	Available Parameters
	00045 Precipitation(Sum)
	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

06700000 SOUTH PLATTE RIVER ABOVE CHEESMAN LAKE, CO

LOCATION - Lat 39°09'46", long 105°18'35" referenced to North American Datum of 1927, in sec.23, T.10 S., R.71 W., Douglas County, CO, Hydrologic Unit 10190002, on right bank about 200 ft upstream from high water mark of Cheesman Lake, and 8.0 mi south-southwest of Deckers.

DRAINAGE AREA - 1,627 mi² of which 11.9 mi² probably is noncontributing.

REVISIONS HISTORY - WDR-US-2011: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 1899 to December 1901, October 1924 to September 1943 (no winter records in water years 1931-33, 1935-39, 1942-43). August 2002 to current year (seasonal records only). Published as South Fork South Platte River at Lake Cheesman, 1899; "below Lake Cheesman", 1900; and South Fork South Platte River at Cheesman, 1901.

GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 6,845 ft above NGVD of 1929, from topographic map. July 31, 1899 to Dec. 31, 1901, staff gage at site within 4.5 mi downstream at different datum. Oct. 1924 to Sept. 1943, gage at different datum.

REMARKS - Water year 2014; records good except for estimated daily discharges, which are poor. Water year 2015; no estimated daily discharges. Records good except for the period June 14 to July 14, which is fair. Water year 2016; records good except for estimated daily discharges, which are poor. Water year 2017; records good except for estimated daily discharges, which are poor. 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; no estimated daily discharges. Records good. Water year 2023; no estimated daily discharges. Records good. Natural flow of stream affected by minor transmountain diversion from Colorado River Basin through Boreas Pass Ditch, Antero, Spinney Mountain, and Elevenmile Canyon Reservoirs, diversions for irrigation of about 40,000 acres, and return flow from irrigated areas.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - April 2022 to current year. (seasonal records only).

INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Elevation of gage is 6,845 ft above NGVD of 1929, from topographic map.

EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation, 2.72 inches, May 11, 2023.

REMARKS - Gage operated seasonally, April through September.