PROVISIONAL DATA SUBJECT TO REVISION
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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.
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 land-surface datum, Feb. 28, 1974 to present.
PERIOD OF RECORD.--June 1974 to March 1995 and November 2001 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
REMARKS.--Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 4.94 ft above sea level, April 7, 2010; lowest measured, 0.84 ft above sea level, September 13, 1980.
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 land-surface datum, Feb. 28, 1974 to present.
PERIOD OF RECORD.--June 1974 to March 1995 and November 2001 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
REMARKS.--Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 4.94 ft above sea level, April 7, 2010; lowest measured, 0.84 ft above sea level, September 13, 1980.
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