LOCATION.--Lat 40°34'36.2", long
74°05'54.5" referenced to North American Datum of
1983, Richmond County, NY, Hydrologic Unit 02030104, at Midland
Field Park, west side of Bedford Avenue, across from Laconia
Avenue, Midland Beach, Staten Island.
WELL CHARACTERISTICS.--Depth 45 ft. Upper casing
diameter 2 in; top of first opening 35 ft, bottom of last
opening 40 ft.
DATUM.--Land-surface datum is 14 ft above National
Geodetic Vertical Datum of 1929. Measuring point: Top of
casing, 0.70 ft below land-surface datum, 13.3 ft above
land-surface datum, Jul. 23, 2004 to present.
PERIOD OF RECORD.--July 2004 to current year.
GAGE.--Water level recorder installed November 2005 to
August 2013. Periodic manual measurements by USGS
personnel.
REMARKS.--Highest water-level recorded on Oct. 30, 2012
attributed to seawater infiltration of the aquifer from
Hurricane Sandy’s storm tide.
EXTREMES FOR PERIOD OF RECORD.--Highest water level
recorded, 9.97 ft above NGVD of 1929, Oct. 30, 2012; lowest
recorded, 3.18 ft above NGVD of 1929, Sept. 21, 2005.