USGS Water-Year Summary 2024
404740073285701 N 9089. 1
Northern Atlantic Coastal Plain aquifer system
Magothy Aquifer
LOCATION - Lat 40°47'19.2", long 73°28'56.1" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit 02030202, at west side of Cherry Drive, 63 ft south of Northern State Parkway, Plainview.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 178 ft. Upper casing diameter 4 in; top of first opening 173 ft, bottom of last opening 178 ft.
PERIOD OF RECORD - December 1975 to May 1984, March 1990 to March 1998, March 2005 to current year.
GAGE - Water-level recorder installed August 2015 to October 2023; 15-minute recording interval. Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 91.90 ft above NGVD of 1929, May 31, 1979; lowest measured, 73.28 ft above NGVD of 1929, Sept. 19, 1995.