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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01192883 COGINCHAUG RIVER AT MIDDLEFIELD, CT
LOCATION - Lat 41°31'12.84", long 72°42'23.51" referenced to North American Datum of 1983, Middlesex County, CT, Hydrologic Unit 01080205, on right bank just upstream from Cider Mill Rd., 0.5 mi northeast of Middlefield, and 0.75 mi upstream from Wadsworth Falls.
DRAINAGE AREA - 29.8 mi².
REVISIONS HISTORY - WDR CT-83-1: Drainage area. WDR US-2013-1: 2007, 2008, 2012 (P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1980 to current year. Records for October 1961 to December 1980 at site 2.0 mi downstream published as "at Rockfall", (station 01192900) are not equivalent because of difference in drainage area.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 134.17 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
REMARKS - Water Year 2018-2022: Records good except for periods of estimated discharges, which are fair.
Water Year 2017: Records good except for periods of estimated discharges and low flow periods below 0.7 ft³/s, which are fair.
Water Year 2016: Records good except for periods of estimated discharges and low flow periods below 0.7 ft³/s, which are fair.
Water Year 2015: Records good except for periods of estimated discharges, which are fair.
Water Year 2014: Records good except for periods of estimated discharges, which are fair.
Infrequent regulation from Beseck Lake.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Oct. 2008 to current year.
