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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
01194500 EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CT
LOCATION - Lat 41°25'39.06", long 72°20'05.20" referenced to North American Datum of 1983, New London County, CT, Hydrologic Unit 01080205, on left bank at State Rte. 156 bridge, 0.7 mi south of intersection of State Rte. 82, 0.4 mi upstream from confluence of Eightmile River, and 5.5 mi above mouth.
DRAINAGE AREA - 22.3 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1937 to September 1981, August 2001 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 54.13 ft above National Geodetic Vertical Datum of 1929. Gage datum was incorrectly reported from 2001 - 2004 as 53.97 ft. Prior to Oct. 1, 1964, at datum 1.00 ft higher. Satellite telemetry at station.
REMARKS -
Water Year 2022: Records fair except for periods of estimated discharges, which are poor.
Water Year 2021: Records fair except for periods of estimated discharges, which are poor.
Water Year 2020: Records good except for periods of estimated discharges, which are fair.
Water Year 2019: Records good except for periods of estimated discharges, which are poor
Water Year 2018: Records good except for periods of estimated discharges, which are poor
Water Year 2017: Records good except for periods of estimated daily discharges and period from Mar 1 to Aug 7, which are fair.
Water Year 2016: Records good except for periods of estimated daily discharges, which are fair.
Water Year 2015: Records good except for periods of estimated daily discharges, which are poor.
Water Year 2014: Records good except for periods of estimated daily discharges, which are fair.
Maximum peak stage of 7.00 ft. on Sept. 21, 1938 was at datum then in use.
Maximum peak stage of 7.00 ft. on Sept. 21, 1938 was at datum then in use.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 6, 1982, reached a stage of 10.22 ft., present datum, discharge, 5,170 ft³/s.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: April 2014 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum 32.6°C Aug. 14, 2016; minimum, 0°C Dec. 10, 2016 and many days during winter 2016 to current year.
