USGS Water-Year Summary 2024
410025073452801 We-71, White Plains NY
Northern Atlantic Coastal Plain aquifer system
Trenton-Black River Group
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.
GROUNDWATER RECORDS
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-stage recorder--15 minute; periodic manual measurements by USGS personnel.
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.