USGS Water-Year Summary 2023
404535073370002 N 8269. 2
Northern Atlantic Coastal Plain aquifer system
Magothy Aquifer
LOCATION - Lat 40°45'35", long 73°37'00" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030202, at east side of Bacon Road, 106 ft north of Hillside Avenue, south of school entrance, Old Westbury.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 86 ft. Upper casing diameter 4 in; top of first opening 81 ft, bottom of last opening 86 ft.
PERIOD OF RECORD - June 1976 to current year. Unpublished records for June 1936 to September 1975 are available in files of the U.S. Geological Survey.
GAGE - Water-level recorder installed July 20, 2002; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 74.18 ft above NGVD of 1929, May 21, 1980; lowest recorded, 59.04 ft above NGVD of 1929, Aug. 28, 2002.