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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
412429073165101 NT 15
Sand and gravel aquifers (glaciated regions)
Drift, Stratified
Drift, Stratified
LOCATION - Lat 41°24'29.54", long 73°16'49.98" referenced to North American Datum of 1983, Fairfield County, CT, Hydrologic Unit 01100005, 0.65 mi southwest of State Rt. 34 on Wasserman Rd. and 0.25 mi north from the former Fairfield State Hospital road, Newtown; Newtown quadrangle.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 33 ft. Upper casing diameter 1 in; top of first opening undefined, bottom of last opening undefined. Bored, unused, water-table well, plastic casing to 31 ft, well point 31 to 33 ft.
DATUM - Land-surface datum is 261.28 ft above North American Vertical Datum of 1988. Measuring point: MEASURING POINT: TOP OF CASING 2.40 FT (.73M) ABOVE LAND-SURFACE DATUM, 2.2 ft above land-surface datum, Dec. 1, 1966 to Jun. 22, 1976; Black mark at top of well, 2.2 ft above land-surface datum, Jun. 21, 1976 to present; Black mark at top of well, 263.48 ft above land-surface datum, Oct. 5, 2016 to present. Prior to October 5, 2016, land-surface elevation datum was reported as 265 ft above National Geodetic Vertical Datum of 1929, from topographic map.
PERIOD OF RECORD - December 1966 to current year.
GAGE - Prior to November 1990 measurements made monthly; November 1990 through September 1994 measurements made biweekly with a chalked tape; October 1994 through September 1996 measurements made biweekly with an electric tape; October 1996 through September 2007 measurements made monthly with an electric tape. Submersible pressure transducer/data logger October 1, 2007 to September 9, 2014, collected 1-hour water-level data; September 9, 2014 to current year 1-hour water-level data is collected and sent by DCP. All measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 0.30 ft below land-surface datum, May 25, 1989; lowest water level measured (recorded), 11.67 ft below land-surface datum, Nov. 15, 2016.
