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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
410253072192601 S 90279. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
Glacial Aquifer, Upper
LOCATION - Lat 41°02'52.4", long 72°19'32.7" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at east side of Osprey Road, 87 ft south of Heron Lane, Shelter Island.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 22.5 ft. Upper casing diameter 2 in; top of first opening 20.5 ft, bottom of last opening 22.5 ft.
DATUM - Land-surface datum is 20 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.35 ft below land-surface datum, 19.65 ft above National Geodetic Vertical Datum of 1929, Mar. 21, 1990 to present.
PERIOD OF RECORD - March 1990 to current year.
GAGE - Water level recorder installed November 2019 to February 2025; 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, 3.84 ft above NGVD of 1929, Apr. 7, 2010; lowest measured, 0.72 ft above NGVD of 1929, Dec. 13, 2007.
