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USGS Water-Year Summary 2024
06910997 MELVERN LAKE NEAR MELVERN, KS
LOCATION - Lat 38°30'34", long 95°42'34" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 NW 1/4 sec.01, T.18 S., R.15 E., Osage County, KS, Hydrologic Unit 10290101, in control tower of Melvern Dam on Marais des Cygnes River, 4.0 mi west of Melvern, and at mile 447.7.
DRAINAGE AREA - 349 mi².
REVISIONS HISTORY - Revisions: Elevation data for the period March 13, 2020 to Aug 22 2022, were revised on Feb 9, 2024, based on unusable stilling well reference readings.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1972 to current year.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by U.S. Army Corps of Engineers).
REMARKS - Reservoir is formed by compacted earthfill dam. Storage began in July 1972. Conservation pool elevation first reached Apr. 4, 1975. Total capacity, 825,700 acre-ft, consisting of the following: Conservation pool, 152,100 acre-ft between elevations 962.0 ft and 1,036.0 ft; flood-control pool, 360,300 acre-ft between elevations 1,036.0 ft and 1,057.0 ft; and surcharge pool, 649,700 acre-ft between elevations 1,057.0 ft and 1,073.0 ft. Reservoir is used to store water for flood control, irrigation, and recreation. Satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 1,053.45 ft, June 13, 1995, contents, 316,300 acre-ft; minimum elevation since conservation pool first reached, 1,029.86 ft, Feb. 11, 1992, contents, 115,800 acre-ft.
