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Water-Year Summary for Site 411832072325501

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
72019 Water level, depth LSD(Mean,Max.,Min.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
411832072325501 CL 223
Other aquifers
Till
LOCATION - Lat 41°18'32.06", long 72°32'53.05" referenced to North American Datum of 1983, Middlesex County, CT, Hydrologic Unit 01100004, 50 ft west of intersection of Cow Hill Rd. and Sassafrass Dr., 10 ft south of curb, at tree line, Clinton; Clinton quadrangle.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 64 ft. Upper casing diameter 2 in; top of first opening 59 ft, bottom of last opening 64 ft. Augered, unused, water-table well, PVC casing.
DATUM - Land-surface datum is 204.48 ft above North American Vertical Datum of 1988. Measuring point: Hacksaw marks on top of metal casing, 1.08 ft above land-surface datum, Oct. 22, 1991 to present; Hacksaw marks on top of metal casing, 205.56 ft above land-surface datum, Jun. 30, 2016 to present. Prior to June 30, 2016, land-surface datum was reported as 205 ft above National Geodetic Vertical Datum of 1929, from topographic map.
PERIOD OF RECORD - October 1991 to current year.
GAGE - October 1991 through September 1994 measurements made biweekly with a chalked tape; October 1994 through September 1996 measurements made biweekly with an electric tape; October 1996 to current year, measurements made monthly or bimonthly with an electric tape. All measurements made by USGS personnel. Submersible pressure transducer/data logger installed Aug. 19, 2016; collects 1-hour water-level data. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded 0.51 ft below land-surface datum, Jan. 13, 2024 (recorded); lowest water level recorded, 12.43 ft below land-surface datum, Oct. 30,1997 (measured).