USGS Water-Year Summary 2024

01124151 QUINEBAUG RIVER AT WEST THOMPSON, CT

LOCATION - Lat 41°56'36.84", long 71°53'58.55" referenced to North American Datum of 1983, Windham County, CT, Hydrologic Unit 01100001, on left bank 350 ft downstream from old, abandoned concrete v-notch weir below West Thompson Dam.

DRAINAGE AREA - 172 mi².

REVISIONS HISTORY - WDR CT-08-1: Instantaneous low flow.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge: June 1966 to September 1989, June 1998 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 289.34 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.

REMARKS -

Water Year 2021-2022: Records good except periods of discharge below 5 ft³/s and periods that exceed 800 ft³/s which are fair due to variable backwater from the French River.

Water year 2018-2020: Records good except periods of estimated discharges and periods that exceed 800 ft³/s which are fair due to variable backwater from the French River.

Water year 2017: Records good except periods of estimated daily discharges, which are poor.

Water years 2014-2016: Records good including periods of estimated daily discharge.

Peak flows are affected by flood-control regulation at East Brimfield Lake, Westville Lake, and West Thompson Lake since 1960. The natural flow regime is altered by regulation at East Brimfield Lake, Westville Lake, West Thompson Lake, East Brimfield Lake, and other small reservoirs in the basin.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Aug. 19, 1955, reached a discharge of about 48,200 ft³/s, by comparison of peak flows at Quinebaug and Putnam, gage height, 20.1 ft from floodmarks.

WATER-QUALITY RECORDS

PERIOD OF RECORD - May 2000 to Sept. 2001, June 2003 to Mar. 2006.