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Water-Year Summary for Site 01118300

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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.
Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 41°28'29.36", long 71°50'03.25" referenced to North American Datum of 1983, New London County, CT, Hydrologic Unit 01090005, on left bank just upstream from twin culverts on Grindstone Hill Rd., 0.1 mi west of State Rte. 49 in the township of North Stonington, 1.6 mi northwest of Clarks Falls, and 3.4 mi northeast of village of North Stonington.
DRAINAGE AREA - 4.02 mi².  
REVISIONS HISTORY - WDR CT-72-1: Drainage area; WDR CT-85-1: 1982 (P); WDR CT-86-1: 1959-1970, 1972-1980, 1982-1984 (P); WDR CT-07-1: 1968 (DV, monthly and yearly discharges and runoff), 1982 (P).
PERIOD OF RECORD - July 1958 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 152.90 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION - Connecticut Department of Energy and Environmental Protection.
  • Water Year 2019: Records good except for periods of estimated discharges and discharges below 1 cfs, which are fair
  • Water Year 2018: Records good except for periods of estimated discharges and discharges below 1 cfs, which are fair.
  • Water Years 2014-2017: Records good except for periods of estimated discharges, which are fair.
  • EXTREMES FOR PERIOD OF RECORD - Minimum discharge, 0.00 ft³/s, Aug. 22, 1987.