USGS Water-Year Summary 2024
404358072520302 S124400. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
LOCATION - Lat 40°43'58.4", long 72°52'03.1" referenced to North American Datum of 1927, Suffolk County, NY, Hydrologic Unit 02030202, at Fire Island National Seashore, along middle of west-side of corral area, Smith Point.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 25 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 20 ft. Datum of gage is NGVD of 1929.
PERIOD OF RECORD - August 2005 to October 2006, April 2014 to October 2023.
GAGE - Water-level recorder installed April 2014; 15-minute recording interval. Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 4.97 ft above NGVD 29, March 8, 2018; lowest recorded, 1.06 ft above NGVD 29, January 10, 11, 2018.