SAN JUAN RIVER BASIN

09362800 LEMON RESERVOIR NEAR DURANGO, CO

LOCATION.--Lat 37°22'57", long 107°39'44", in SE14SW14 sec.17, T.36 N., R.7 W., LaPlata County, Hydrologic Unit 14080104, in gatehouse at Lemon Dam on Florida River, 2.3 mi upstream from True Creek, and 15 mi northeast of Durango.

DRAINAGE AREA.--68.3 mi2.

PERIOD OF RECORD.--October 1989 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09362800

GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 7,948.00 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 was completed in 1963. Capacity, 40,100 acre-ft, between elevations 7,948.00 ft, sill of outlet gate, and 8,148.00 ft, normal reservoir water surface elevation. Dead storage below elevation 8,005.00 ft, 354 acre-ft. Figures given are total contents.

EXTREMES FOR PERIOD OF RECORD.--Maximum daily mean contents, 40,180 acre-ft, July 3-4, 1997, elevation, 8,148.06 ft; minimum daily mean contents, 3,080 acre-ft, Aug. 3, 2003, elevation, 8,043.00 ft.

EXTREMES FOR CURRENT YEAR.--Maximum daily mean contents, 20,330 acre-ft, June 3, daily mean elevation, 8,110.74 ft; minimum daily mean contents, 3,080 acre-ft, Aug. 3, daily mean elevation, 8,043.00 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. . . . . . . . . . . . . . . . . . . . . . . . .	8,054.91	4,870	-
Oct. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,059.05	5,580	+710
Nov. 30 . . . . . . . . . . . . . . . . . . . . . . . . .	8,061.01	5,930	+350
Dec. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,062.52	6,210	+280
CAL YR 2002. . . . . . . . . . . . . . . . . . . .	-	-	-7,190
Jan. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,062.96	6,290	+80
Feb. 28 . . . . . . . . . . . . . . . . . . . . . . . . .	8,063.38	6,370	+80
Mar. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,065.54	6,780	+410
Apr. 30 . . . . . . . . . . . . . . . . . . . . . . . . .	8,078.55	9,620	+2,840
May 31. . . . . . . . . . . . . . . . . . . . . . . . . .	8,109.94	19,990	+10,370
June 30 . . . . . . . . . . . . . . . . . . . . . . . . .	8,091.90	13,330	-6,660
July 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,046.08	3,500	-9,830
Aug. 31 . . . . . . . . . . . . . . . . . . . . . . . . .	8,054.32	4,770	+1,270
Sept. 30. . . . . . . . . . . . . . . . . . . . . . . . .	8,076.03	9,010	+4,240
WTR YR 2003. . . . . . . . . . . . . . . . . . .	-	-	+4,140