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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
410311072215501 S 51170. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
Glacial Aquifer, Upper
LOCATION - Lat 41°03'11.9", long 72°21'52.9" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at west side of Nostrand (Brander) Parkway, 100 ft south of Lilliput Lane, West Neck, Shelter Island.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 33 ft. Upper casing diameter 4 in; top of first opening 21 ft, bottom of last opening 31 ft.
DATUM - Land-surface datum is 8.80 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel flange, 1.76 ft below land-surface datum, 7.04 ft above National Geodetic Vertical Datum of 1929, Feb. 28, 1974 to present.
PERIOD OF RECORD - June 1974 to March 1995, November 2001 to current year.
GAGE - Water level recorder installed November 2022; 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, 4.94 ft above NGVD of 1929, Apr. 7, 2010; lowest measured, 0.84 ft above NGVD of 1929, Sept. 13, 1980.
