LOCATION.--Lat 40°50'35.37", long 73°32'15.35" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030201,
WELL CHARACTERISTICS.--Depth 650 ft. Upper casing diameter undefined; top of first opening 625 ft, bottom of last opening 645 ft.
DATUM.--Land-surface datum is 187 ft above National Geodetic Vertical Datum of 1929. Measuring point: unknown, 186.95 ft above National Geodetic Vertical Datum of 1929, Apr. 11, 1990 to present.
PERIOD OF RECORD.--April 1990 to current year.
GAGE.--Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest measured, 62.62 ft above NGVD of 1929; lowest measured, 53.61 ft above NGVD of 1929, Mar. 20, 1996.

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