Funding for this site is provided by:
40°54'33.4", long 73°34'44.9" referenced to North
American Datum of 1983, Nassau County, NY, Hydrologic Unit 02030201, at
southeast side of Oak Neck Beach, 5 ft north of fence line, inside the
playground along north side of Bayville Avenue, Bayville.
Depth 370 ft. Upper casing diameter 6 in;
top of first opening 360 ft, bottom of last opening 370 ft.
Land-surface datum is 14.5 ft above National Geodetic
Vertical Datum of 1929. Measuring point: Top of casing, 3.64 ft above
land-surface datum, distance above land-surface datum not defined, Jun.
21, 1996 to Jun. 15, 2016; Top of 6 inch blue insert that holds sensor,
distance above land-surface datum not defined, Jun. 15, 2016 to
PERIOD OF RECORD.--
September 1961 to December 1961, December
1964, March 1966, January 1968 to December 1998, and June 2005 to
Measurement with chalked steel tape by United States
Geological Survey personnel.
Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD.--
Highest water level measured,
15.74 ft above sea level, February 5, 1962; lowest measured, 5.50 ft
below sea level, June 27, 1983.