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Water-Year Summary for Site 01196500

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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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  • Not all sites have reports available for every water year.
Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
63680 Turbidity, Form Neph(Max.,Min.,Mean)  

Water year 2019: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2019
LOCATION - Lat 41°27'00.95", long 72°50'28.59" referenced to North American Datum of 1983, New Haven County, CT, Hydrologic Unit 01100004, on right bank on Wilbur Cross Parkway, 0.8 mi downstream from bridge on Quinnipiac St. in Wallingford, and 2 mi upstream from Wharton Brook.
DRAINAGE AREA - 115 mi².
REVISIONS HISTORY - WDR CT-83-1: Drainage area.
PERIOD OF RECORD - Discharge: October 1930 to current year.

Water-stage recorder and crest-stage gage. Datum of gage is 18.24 ft above North American Vertical Datum of 1988 (19.24 ft above National Geodetic Vertical Datum of 1929). Prior to Jan. 27, 1965, at datum 1.00 ft higher. Satellite telemetry at station.


Water Year 2018: Records good except for periods of estimated discharges, which are poor.

Water Years 2014-2017: Records good except for periods of estimated daily discharges, which are fair. The natural flow of the Quinnipiac River has been altered by numerous flow diversions. Flow regulated by Wolcott Reservoir, Broad Brook Reservoir, and by mills upstream. Diversion from Wolcott Reservoir for municipal supply of New Britain and diversion into the basin from Merimere and Elmere Reservoirs for municipal supply of Meriden.

EXTREMES FOR PERIOD OF RECORD - Minimum discharge, 8.0 ft³/s, Nov. 2, 1930.
PERIOD OF RECORD - Water years 1953-54, 1957, 1968 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: November 1969 to December 1970. WATER TEMPERATURES: November 1969 to December 1970.
COOPERATION - Water quality monitor established and maintained by the U. S. Geological Survey in cooperation with the Connecticut Department of Energy and Environmental Protection.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 530 microsiemens Jul. 16, 1970; minimum recorded, 47 microsiemens Jul. 4, 1970. WATER TEMPERATURES: Maximum, 31.0°C July 28, 1970; minimum, 0.0°C on many days during winter periods.