RIFLE CREEK BASIN

09091900 RIFLE GAP RESERVOIR NEAR RIFLE, CO

LOCATION.--Lat 39°37'37", long 107°45'25", in NW14SE14 sec.7, T.4 S., R.92 W., Garfield County, Hydrologic Unit 14010005, in gate house of Rifle Gap dam on Rifle Creek, 6.7 mi northeast of Rifle.

DRAINAGE AREA.--136 mi2.

PERIOD OF RECORD.--May to September 2003. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09091900

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); gage readings have been reduced to elevations above NGVD of 1929.

REMARKS.--Reservoir is formed by an earthfill dam. Dam completed May 1967. Capacity, 13,600 acre-ft, 1967 survey, at elevation 5,960.00, crest of spillway. Dead storage below elevation 5,903.0 ft, 896 acre-ft. Inactive storage below elevation 5,908.0 ft, 1,440 acre-ft. Figures given are total contents.

COOPERATION.--Capacity tables provided by U.S. Bureau of Reclamation.

EXTREMES FOR CURRENT YEAR.--Maximum daily mean contents during period May to September, 7,990 acre-ft, May 1, elevation, 5,941.80 ft; minimum daily mean contents, 2,860 acre-ft, Sept. 30, elevation 5,917.63 ft.

MONTHEND ELEVATION AND CONTENTS, AT 2400, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Elevation (feet)	Contents (acre-feet)	Change in contents (acre-feet)
Sept. 30. . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Oct. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Nov. 30 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Dec. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
CAL YR 2002. . . . . . . . . . . . . . . . . . . .	-	-	-
Jan. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Feb. 28 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Mar. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
Apr. 30 . . . . . . . . . . . . . . . . . . . . . . . . .	-	-	-
May 31. . . . . . . . . . . . . . . . . . . . . . . . . .	5,937.82	6,980	-
June 30 . . . . . . . . . . . . . . . . . . . . . . . . .	5,932.06	5,650	-1,330
July 31 . . . . . . . . . . . . . . . . . . . . . . . . .	5,923.96	4,000	-1,650
Aug. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	5,919.20	3,130	-870
Sept. 30. . . . . . . . . . . . . . . . . . . . . . . . .	5,917.61	2,850	-280
WTR YR 2003. . . . . . . . . . . . . . . . . . .	-	-	-