USGS Water-Year Summary 2023
404327073341701 N 11396. 1
Northern Atlantic Coastal Plain aquifer system
Magothy Aquifer
LOCATION - Lat 40°43'27", long 73°34'17" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030202, at southwest side of Eisenhower Couny Park, near wading pool, 87 ft north of fence line along Hempstead Turnpike, northernmost well, East Meadow.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 585 ft. Upper casing diameter 4 in; top of first opening 560 ft, bottom of last opening 580 ft. Datum of gage is NGVD of 1929.
PERIOD OF RECORD - May 1990 to March 1998, March 2002 to January 2011, and October 2012 to current year.
GAGE - Water-level recorder installed August 2002; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 57.33 ft above NGVD 29, April 17, 2010; lowest recorded, 43.60 ft above NGVD 29, August 28, 2002.