LOCATION.--Lat 41°00'25.0", long
73°45'28.1" referenced to North American Datum of
1983, Westchester County, NY, Hydrologic Unit 02030102, at
White Plains.
WELL CHARACTERISTICS.--Depth 57 ft. Upper casing
diameter 2 in; top of first opening 47 ft, bottom of last
opening 56.5 ft.
DATUM.--Land-surface datum is 228.35 ft above North
American Vertical Datum of 1988. Measuring point: PVC casing,
225.13 ft above North American Vertical Datum of 1988, Aug. 6,
2019 to present.
PERIOD OF RECORD.--September 2017 to current year.
GAGE.--Water-level recorder installed September 2017;
15-minute recording interval. Periodic manual measurements by
USGS personnel.
REMARKS.--Satellite water-level telemeter at
station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level,
22.02 ft below land-surface datum, Jan. 5, Mar. 22, 2019;
lowest water level, 24.49 ft below land-surface datum, Oct. 28,
2017.