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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
405432073345001 N 7152. 1
Northern Atlantic Coastal Plain aquifer system
Lloyd Aquifer
Lloyd Aquifer
LOCATION - Lat 40°54'33.4", long 73°34'44.9" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit 02030201, at southeast side of Oak Neck Beach, 5 ft north of fence line, inside the playground along north side of Bayville Avenue, Bayville.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 370 ft. Upper casing diameter 6 in; top of first opening 360 ft, bottom of last opening 370 ft.
PERIOD OF RECORD - September 1961 to December 1962, December 1964, March 1966, January 1968 to December 1998, and June 2005 to current year.
GAGE - Water-level recorder installed June 2016; 15-minute recording interval. Periodic manual measurements by USGS personnel.
REMARKS - Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 15.74 ft above sea level, February 5, 1962; lowest recorded, 8.28 ft below sea level, July 25, 2016.
