USGS Water-Year Summary for Site 01124000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2023

01124000 QUINEBAUG RIVER AT QUINEBAUG, CT

LOCATION - Lat 42°01'20", long 71°57'22" referenced to North American Datum of 1927, Windham County, CT, Hydrologic Unit 01100001, on right bank at Quinebaug, 500 ft upstream from bridge on State Rte. 197, 0.2 mi downstream from Massachusetts-Connecticut State line, 7.8 mi upstream from French River, and at mile 46.

DRAINAGE AREA - 155 mi².

REVISIONS HISTORY - WSP 851: 1936 (M). WSP 1201: 1939-43, 1949. WSP 1381: 1938 (M). WDR CT-83-1: Drainage area. WDR US-2012-1: 1998, 2006, 2007, 2009, 2011 (P).

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1931 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 340.77 ft above North American Vertical Datum of 1988. Prior to Oct. 3, 2017 datum of gage was reported as 341.52 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.

REMARKS -

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

Water Year 2017 - 2020: Records good except for periods of estimated discharges, which are poor.

Water Year 2016: Records good except for periods of estimated daily discharges, which are fair.

Water Year 2014 - 2015: Records good except for periods of estimated daily discharges, which are poor.

EXTREMES FOR PERIOD OF RECORD - The maximum peak flow of 49,300 ft³/s was obtained from rating curve extended above 820 ft³/s on basis of slope-area measurements of peak flow. The maximum peak stage of 18.96 ft. was from flood marks.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Chemical analyses available for water years 1953 (WSP 1290), 1960 (WSP 1741), 1963 (WSP 1941), 1969 (WSP 2143). Water temperatures available for water year 1960 (WSP 1741). 1980 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 1959 to September 1960, October 1968 to September 1969. pH: October 1959 to September 1960, October 1968 to September 1969. WATER TEMPERATURES: October 1959 to September 1960, October 1968 to September 1969. DISSOLVED OXYGEN: October 1959 to September 1960, October 1968 to September 1969.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 308 microsiemens Jan. 31, 1969; minimum, 49 microsiemens April 2, 1960. pH: Maximum, 7.7 units June 14, 1969; minimum, 5.8 units July 18, 1969. WATER TEMPERATURES: Maximum, 30.5°C July 16, 1969; minimum, 0.0 C on many days during December to March. DISSOLVED OXYGEN: Maximum, 15.1 mg/L Dec. 28, 1968; minimum, 1.4 mg/L Sept. 7, 1969.