LOCATION.--Lat 42°15'44.0", long
78°02'12.2" referenced to North American Datum of
1983, Allegany County, NY, Hydrologic Unit 04130002, in the
Allegany County landfill on County Route 48 near Belmont.
WELL CHARACTERISTICS.--Depth 29.5 ft. Upper casing
diameter 2 in; top of first opening 23.5 ft, bottom of last
opening 29.1 ft. Cased to 29.5 ft (screen, 23.5 ft to 29.1 ft).
Elevation of land-surface datum is 1,456.13 ft above NGVD of
1929 and 1,455.61 ft above NAVD of 1988.
DATUM.--Land-surface datum is 1,455.61 ft above North
American Vertical Datum of 1988. Measuring point: Top of
casing, 1.76 ft above land-surface datum, Apr. 30, 2015 to Jul.
16, 2020; Top of casing, 1.77 ft above land-surface datum, Jul.
16, 2020 to present.
PERIOD OF RECORD.--November 1995 to September 2002 and
November 2002 to current year. Water levels for November 1995
to September 2002 are unpublished and available in the files of
the U.S. Geological Survey.
REVISIONS HISTORY.--Groundwater levels for the period
Dec. 5, 2019, at 10:15 to Mar. 18, 2020, at 13:30 were revised
on Jan. 7, 2022, based on changes to a correction.
GAGE.--Water-stage recorder--15 minute; periodic
measurements by USGS personnel.
REMARKS.--Satellite water-level telemetry at
station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level
recorded, 1.76 ft above land-surface datum, July 17,
18, 19, 2021, but was higher during this event beyond the
limits of the well; lowest water level measured, 2.44 ft below
land-surface datum, Jan. 29, 1996.