USGS Water-Year Summary for Site 01193500

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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 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

01193500 SALMON RIVER NEAR EAST HAMPTON, CT

LOCATION - Lat 41°33'08", long 72°26'59" referenced to North American Datum of 1927, Middlesex County, CT, Hydrologic Unit 01080205, on left bank at State Rt. 16 Bridge, 450 ft downstream from New London-Middlesex County line, 300 ft downstream from Comstock Bridge, 0.7 mi downstream from Dickinson Creek, and 3.5 mi southeast of East Hampton.

DRAINAGE AREA - 100 mi².

REVISIONS HISTORY - WSP 1201: 1929. WDR CT-78-1: 1976 (P). WDR CT-83-1: Drainage area. WDR CT-04-1: Latitude.

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 1928 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 63.45 ft above North American Vertical Datum of 1988. Prior to 12/29/2022 datum of gage was reported as 64.38 ft above National Geodetic Vertical Datum of 1929. Prior to August 26, 1974, at site 500 ft upstream at datum 5.12 ft higher; from August 26, 1974 to May 6, 1980, at site 500 ft upstream at datum 2.13 ft higher; from May 6, 1980 to June 24, 1987 at site 200 ft upstream at datum 0.67 ft lower. Satellite telemetry at station.

REMARKS -

Slight regulation at low flow by ponds upstream. The maximum peak stage of 14.40 ft. on June 6, 1982 was at site and datum then in use.
Water Years 2014-2017: Records good except for periods of estimated discharges, which are fair.
Water Year 2018: Records good except for periods of estimated discharges and the period May 15 - Sept. 30, which are fair.
Water Year 2019: Records good except for periods of estimated discharges and the period Oct. 1- Oct. 11, which are fair.
Water Year 2020: Records good except for periods of estimated discharges which are poor.
Water Year 2021: Records good except for periods of estimated discharges and the period Sept. 2- Sept.15, which are fair.
Water Year 2022-2024: Records good except for periods of estimated discharges which are fair.

WATER-QUALITY RECORDS

PERIOD OF RECORD - September 1953, April 1954, October 1960 to September 1961, June 1968 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: March 1975 to September 1993. pH: December 1984 to September 1992. WATER TEMPERATURES: March 1975 to April 1993. DISSOLVED OXYGEN: January 1985 to September 1992. SUSPENDED-SEDIMENT DISCHARGE: January 1982 to September 1986, October 1987 to September 1990. INSTANTANEOUS SUSPENDED-SEDIMENT DISCHARGE: March 1987 to September 1987.

INSTRUMENTATION - Water-quality 2-channel mini-monitor March 1975 to September 1984, August 1993 to September 1993. Water-quality 4-channel mini-monitor October 1984 to April 1993.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 233 microsiemens Aug. 2, 2016; minimum, 47 microsiemens September 26, 2018. pH: Maximum, 8.7 units July 14, 2018; minimum, 6.4 units Sept. 26, 2018. WATER TEMPERATURES: Maximum, 30.9°C August 14, 2016; minimum, -0.2°C on March 5, 2017. DISSOLVED OXYGEN: Maximum, 12 mg/L May 1, 2018; minimum 6.8 mg/L July 25, 2016.