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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
01519995 COWANESQUE LAKE AT LAWRENCEVILLE, PA
LOCATION - Lat 41°59'05", long 77°09'05" referenced to North American Datum of 1927, Tioga County, PA, Hydrologic Unit 02050104, at Cowanesque Dam on Cowanesque River, 1.8 mi southwest of Lawrenceville, and 2.5 mi upstream from mouth.
DRAINAGE AREA - 298 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1979 to September 2013 (elevation and contents), October 2013 to current year (elevation).
GAGE - Water-stage recorder and weighing bucket precipitation gage. Datum of gage is U.S. Army Corps of Engineers local project datum. Prior to water year 2007, the datum was incorrectly reported as NGVD 1929. Satellite and landline telemetry at station.
COOPERATION - Content tables provided by U.S. Army Corps of Engineers. Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Baltimore District.
REMARKS - Reservoir is formed by rolled earth and rockfill dam with concrete chute spillway with uncontrolled weir at elevation 1,117.00 ft. Flow is regulated by two service gates and low-flow by-pass system. Storage began in December 1979. Capacity at elevation 1,117.00 ft is 84,930 acre-ft. Recreation lake elevation is 1,080.00 ft since May 1990, capacity 30,060 acre-ft. Reservoir is used for flood control, recreation, and water supply. Figures given herein represent total contents.
EXTREMES FOR PERIOD OF RECORD -
Extreme elevations: Maximum elevation, 1,114.78 ft, Apr 2, 1993; minimum 1011.50 ft, June 23, 1980.
Extreme contents prior to water year 2014: Maximum contents, 84,560 acre-ft, Apr. 2, 1993, elevation, 1,114.78 ft; minimum, 65 acre-ft, June 23, 1980, elevation, 1,011.50 ft.
