USGS Water-Year Summary 2024
373839081255201 Wyo-0148
Pennsylvanian aquifers
Pottsville Formation
LOCATION - Lat 37°38'39", long 81°25'52" referenced to North American Datum of 1983, Wyoming County, WV, Hydrologic Unit 05070101,
at Twin Falls State Park.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 80 ft. Upper casing diameter 6 in; top of first opening 28 ft, bottom of last opening 80 ft.
DATUM - Land-surface datum is 2,020.48 ft above North American Vertical Datum of 1988. Measuring point: Top edge of recorder shelter floor, 3.39 ft above land-surface datum, Sep. 27, 2000 to present. Prior to Sep. 27, 2000, measuring point was top edge of recorder shelter floor, 2.62 ft above land-surface datum.
PERIOD OF RECORD - December 1976 to January 1977 (periodic water level), February 1977 to current year.
GAGE - Water-level recorder. No instrumentation prior to February 1977.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 19.19 ft below land-surface datum, Mar. 13, 1980; lowest, 52.40 ft below land-surface datum, Nov. 24, 1987.