USGS Water-Year Summary 2022
09091900 RIFLE GAP RESERVOIR NEAR RIFLE, CO
LOCATION - Lat 39°37'37", long 107°45'25" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.07, T.5 S., R.92 W., Garfield County, CO, Hydrologic Unit 14010005, in gate house of Rifle Gap dam on Rifle Creek, 6.7 mi northeast of Rifle.
DRAINAGE AREA - 137 mi².
PERIOD OF RECORD - May 2003 to September 2012, October 2017 to current year. For a complete listing of historical data available for this site, see https://waterdata.usgs.gov/nwis/inventory/?site_no=09091900&agency_cd=USGS.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 5,960.00 ft above NGVD of 1929 (levels by U.S. Bureau of Reclamation).
COOPERATION - Capacity tables provided by U.S. Bureau of Reclamation.
EXTREMES FOR PERIOD OF RECORD - Maximum daily mean contents, 14,000 acre-ft, June 4, 2011, elevation, 5,961.11 ft; minimum daily mean contents, 1,786 acre-ft, October 12, 2021, elevation, 5,910.69 ft.
PERIOD OF RECORD - October 2017 to current year (seasonal records only).
INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Datum of gage is 5,960.00 ft above NGVD of 1929 (levels by U.S. Bureau of Reclamation).
EXTREMES FOR PERIOD OF RECORD - (seasonal only) Maximum daily precipitation, 1.7 inches, June 21, 2019.