Funding for this site is provided by:
40°52'22.2", long 72°52'32.8" referenced to North
American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202,
at Brookhaven National Laboratory, northeast corner of Thomson Road and
Forth Avenue, Upton.
Depth 962 ft. Upper casing diameter 4 in;
top of first opening 952 ft, bottom of last opening 962 ft.
PERIOD OF RECORD.--
July 1949 to June 1952, January 1954 to
Water-level recorder installed September 2015; 15-minute
recording interval. Periodic manual measurements by USGS
Cellular water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Highest water level measured,
42.50 ft above sea level, April 2, 1979; lowest recorded, 33.75 ft
above sea level, December 20, 2016.