USGS Water-Year Summary for Site 01520000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

01520000 COWANESQUE RIVER NEAR LAWRENCEVILLE, PA

LOCATION - Lat 41°59'48", long 77°08'25" referenced to North American Datum of 1927, Tioga County, PA, Hydrologic Unit 02050104, on left bank on SR 4022, 0.5 mi downstream from Cowanesque Dam, 0.8 mi upstream from highway bridge on U.S. Route 15 in Lawrenceville, and 1.4 mi upstream from mouth.

DRAINAGE AREA - 298 mi².

REVISIONS HISTORY - WDR PA-72-1: 1971(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1951 to current year. Prior to October 1951 monthly discharge only, published in WSP 1722.

GAGE - Water-stage recorder and water-quality monitor. Datum of gage is 983.6 ft above North American Vertical Datum of 1988. Prior to July 1976 at site 1.1 mi upstream at datum 14.07 ft higher. Prior to October 2, 2023 the datum of gage was reported as 983.96 ft. above National Geodetic Vertical Datum of 1929. Satellite and landline telemetry at station.

COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Baltimore District, the Pennsylvania Department of Environmental Protection, and the U.S. Geological Survey.

REMARKS - Flow regulated since December 1979 by Cowanesque Dam (station 01519995). The lowest daily mean for period of record since 1978 water year was a result of construction of Cowanesque Dam. The maximum peak flow for period of record since 1978 water year occurred at gage height 12.41 ft. The maximum peak stage for period of record since 1978 water year was a result of backwater from a coffer dam. Records are good except those for estimated discharge, which are poor.

WATER-QUALITY RECORDS

PERIOD OF RECORD - April 2002 to current year.

PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 1972 to Sept. 1975; Nov. 1976 to Sept. 1986; October 2017 to current year.

COOPERATION - Water-quality samples were collected as part of the Pennsylvania Department of Environmental Protection Water-Quality Network (WQN) with cooperation from the Pennsylvania Department of Environmental Protection.

REMARKS -

As of October 2013, results from discrete water quality samples collected at this site are available through the U.S. Geological Survey National Water Information System web interface on the "Water Quality for the Nation" webpage. Analyses for pH, water temperature, specific conductance, and dissolved oxygen were performed on site. All other sample analyses were performed at the Pennsylvania Department of Environmental Protection laboratory in Harrisburg, Pa. Occasionally, values for filtered parameters may exceed values for the corresponding unfiltered parameter. These results are within the limits of analytical precision and methods.

EXTREMES FOR PERIOD OF DAILY RECORD -

WATER TEMPERATURE: Maximum, 31.0° C , July 9, 1975; minimum, 0.0° C many days during winter periods.