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USGS 410602072195801 S 51182. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 41°06'03.1", long 72°20'00.2" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at north side of Westview Road, 99 ft west of Crescent Drive, Shelter Island.
WELL CHARACTERISTICS.--Depth 76 ft. Upper casing diameter 6 in; top of first opening 64 ft, bottom of last opening 74 ft.
DATUM.--Land-surface datum is 55.1 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel flange, 1.93 ft below land-surface datum, 53.17 ft above land-surface datum, Feb. 28, 1974 to present.
PERIOD OF RECORD.--June 1974 to April 1984, March 1990, March 1994 to March 1995, and April 2006 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 5.65 ft above sea level, April 20, 2010; lowest measured, 0.88 ft above sea level, March 2, 1983.
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> Rating Information
Available Parameters Period of Record
  
2022-07-22  2022-10-02








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Groundwater level above NGVD 1929, feet


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