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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
412825072410501 D 117
Other aquifers
Till
Till
LOCATION - Lat 41°28'25", long 72°41'05" referenced to North American Datum of 1927, Middlesex County, CT, Hydrologic Unit 01080205, about 400 ft west of Maple Ave. and about 300 ft south of Allyn Brook, Durham; Durham quadrangle.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 22.5 ft. Upper casing diameter 2 in; top of first opening 21 ft, bottom of last opening 22.5 ft. Augered, unused, water-table well, PVC casing.
DATUM - Land-surface datum is 165.28 ft above North American Vertical Datum of 1988. Measuring point: TOC metal casing between hacksaw marks, 1.35 ft above land-surface datum, Jan. 13, 2005 to present. Prior to July 13, 2016, land-surface datum was reported as 162 ft above National Geodetic Vertical Datum of 1929, from topographic map.
PERIOD OF RECORD - January 1986 to current year.
GAGE - January 1986 to July 2000, measurements made bi-weekly with a chalked steel tape by paid observer; August 2000 through February 2008, measurements made monthly by USGS personnel using an electric tape. Submersible pressure transducer/data logger February 27, 2008 to current year, collects 1-hour water-level data.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 4.34 ft below land-surface datum Dec. 9, 1996; lowest water level recorded, 14.57 ft below land-surface datum, Sep. 25, 2016.
