LOCATION.--Lat 40°35'46.8", long
74°09'08.1" referenced to North American Datum of
1983, Richmond County, NY, Hydrologic Unit 02030104, at the
City University of New York, College of Staten Island Campus,
west side of Loop Road about 4,600 ft south of Victory
Boulevard, Willowbrook, Staten Island.
WELL CHARACTERISTICS.--Depth 38 ft. Upper casing
diameter 2 in; top of first opening 28 ft, bottom of last
opening 33 ft.
DATUM.--Land-surface datum is 76 ft above National
Geodetic Vertical Datum of 1929. Measuring point: Top of
casing, 0.06 ft below land-surface datum, 75.94 ft above
land-surface datum, Jul. 23, 2004 to present.
PERIOD OF RECORD.--July 2004 to April 2015, June 2024 to
current year.
GAGE.--Water level recorder installed December 2006 to
September 2013. Periodic manual measurements by USGS
personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level
recorded, 70.38 ft above NGVD of 1929, July 10, 2014; lowest
recorded, 50.40 ft above NGVD of 1929, June 29, 2014.