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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
01196561 MUDDY RIVER AT EAST WALLINGFORD, CT
LOCATION - Lat 41°26'08.19", long 72°46'46.17" referenced to North American Datum of 1983, New Haven County, CT, Hydrologic Unit 01100004, on west bank 200 feet below Mackenzie Reservoir Dam, 0.1 mi upstream from bridge on Northford Rd. in East Wallingford.
DRAINAGE AREA - 8.88 mi².
REVISIONS HISTORY -
WDR US-11-1: Drainage area.
Revisions: Periods of discharge from Feb. 1, 2008 to Dec. 25, 2020, were revised in Jan. 2022, based on changes to the high end of the stage-discharge ratings.
Revisions: The maximum discharge for water years 2008-2016 and 2018-2020 were revised in Jan. 2022, based on changes to the high end of the stage-discharge ratings.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 2005 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 168.05 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
REMARKS - The natural flow of Muddy River has been altered by flow diversion for municipal supply of Wallingford, CT. Flow regulated by Mackenzie Reservoir directly upstream.
Water Year 2020-2022: Records good except for periods of flows below 2.0 ft³/s and estimated flows, which are poor.
Water Year 2019: Records good except for periods of flows below 1.0 ft³/s, which are poor, and estimated flows above 500 ft³/s, which are fair.
Water Year 2018: Records good except for periods of flows below 2.0 ft³/s, which are poor, and estimated flows above 500 ft³/s, which are fair.
Water Year 2017: Records good except for periods of flows below 1.0 ft³/s and periods of estimated discharges, which are poor.
Water Year 2016: Records fair except for periods of flows below 1.0 ft³/s, which are poor.
Water Years 2014-2015: Records fair except for periods of flows below 1.0 ft³/s and periods of estimated discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Minimum daily discharge, 0.05 ft³/s (estimated), Oct. 25, 26, 2010; minimum instantaneous discharge, practically no flow as a result of regulation, Oct. 25, 26, 2010.
