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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
410516072200901 S 52084. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
Glacial Aquifer, Upper
LOCATION - Lat 41°05'16", long 72°20'09" referenced to North American Datum of 1927, Suffolk County, NY, Hydrologic Unit 02030202, at east side of Manhanset Road, 143 ft north of Cobbets Lane, Shelter Island.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 74 ft. Upper casing diameter 6 in; top of first opening 62 ft, bottom of last opening 72 ft.
DATUM - Land-surface datum is 28.4 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 1.45 ft below land-surface datum, 26.95 ft above National Geodetic Vertical Datum of 1929, Jul. 16, 1974 to present.
PERIOD OF RECORD - July 1974 to current year.
GAGE - Water-level recorder installed July 2022; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
REMARKS - Cellular water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 7.05 ft above NGVD of 1929, Apr. 20, 2010; lowest measured, 1.71 ft above NGVD of 1929, Mar. 9, 1981.
