This station is operated in cooperation
U.S. Geological Survey
Lat 40°51'49", long 72°53'22"
referenced to North American Datum of 1927, Suffolk County, NY,
Hydrologic Unit 02030202, at Brookhaven National Laboratory, northwest
corner of Princeton Avenue and Upton Road, 50 ft south of parking
Depth 91 ft. Upper casing diameter 4 in;
top of first opening 85 ft, bottom of last opening 91 ft. Datum of gage
is NGVD of 1929.
PERIOD OF RECORD.--
April 1948 to current year.
Water-stage recorder installed December 2000; 15 minute
recording intervals. Periodic manual measurements by USGS
Satellite water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Highest elevation recorded,
47.61 ft, May 8, 2010; lowest measured, 33.34 ft, Mar. 1, 1967.