LOCATION.--Lat 40°44'19.07", long
73°59'07.87" referenced to North American Datum of
1927, New York County, NY, Hydrologic Unit 02030101, at south
side of East 22nd Street, 32 ft east of Lexington Avenue,
Manhattan.
WELL CHARACTERISTICS.--Depth 600.1 ft. Upper casing
diameter 3 in; top of first opening 40 ft, bottom of last
opening 600.1 ft. Cased to 40 ft, open hole.
DATUM.--Land-surface datum is 26.68 ft above National
Geodetic Vertical Datum of 1929. Measuring point: Top of steel
meter box rim, at land-surface datum, 26.68 ft above National
Geodetic Vertical Datum of 1929, Oct. 27, 2004 to
present.
PERIOD OF RECORD.--October 2004 to January 2007.
GAGE.--Periodic manual measurements by USGS
personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level
measured, 11.95 ft above NGVD of 1929, Apr. 6, 2005; lowest
measured, 11.13 ft above NGVD of 1929, Oct. 31, 2006.