This station is operated in cooperation
Nassau County Department of Public
Lat 40°42'36", long 73°43'35"
referenced to North American Datum of 1927, Nassau County, NY,
Hydrologic Unit 02030202, at west side of Cross Island Parkway exit
ramp (Hempstead Turnpike eastbound), 21 ft south of Hempstead Turnpike,
Depth 353 ft. Upper casing diameter 4 in;
top of first opening 349 ft, bottom of last opening 353 ft. Datum of
gage is NGVD of 1929.
PERIOD OF RECORD.--
April 1964 and January 1968 to current year.
Unpublished records for April 1964 to September 1975 are available in
files of the U.S. Geological Survey.
Water-level recorder installed December 1999; 15-minute
recording interval. Periodic manual measurements made by USGS
Cellular water-level telemeter at station.
Water-levels influenced by nearby pumping until 1984.
EXTREMES FOR PERIOD OF RECORD.--
Highest water level recorded,
39.84 ft above NGVD 29, May 8, 2010; lowest measured, 3.52 ft above
NGVD 29, August 8, 1982.