PROVISIONAL DATA SUBJECT TO REVISION
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LOCATION.--Lat 42°54'28.7", long
78°29'24.2" referenced to North American Datum of
1983, Erie County, NY, Hydrologic Unit 04120104, at
Alden.
WELL CHARACTERISTICS.--Depth 44 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined. Cased to 44 ft, open end.
DATUM.--Land-surface datum is 823.42 ft above North American Vertical Datum of 1988. Measuring point: Assumed top of casing, 1.0 ft above land-surface datum, Jan. 26, 1979 to Mar. 8, 2022; Two file marks at base of shelter, 3.99 ft above land-surface datum, Mar. 8, 2022 to Mar. 31, 2023; Two file marks at base of shelter, 3.98 ft above land-surface datum, Mar. 31, 2023 to present.
PERIOD OF RECORD.--March 2022 to current year. Miscellaneous manual measurement--1979.
GAGE.--Water-stage recorder--15 minute; periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level, 0.42 ft below land-surface datum, Apr. 6, 2023; lowest water level, 3.49 ft below land-surface datum, Aug. 5, 2022, but may have been lower during period of instrument malfunction, Aug. 3-8, 2022.
WELL CHARACTERISTICS.--Depth 44 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined. Cased to 44 ft, open end.
DATUM.--Land-surface datum is 823.42 ft above North American Vertical Datum of 1988. Measuring point: Assumed top of casing, 1.0 ft above land-surface datum, Jan. 26, 1979 to Mar. 8, 2022; Two file marks at base of shelter, 3.99 ft above land-surface datum, Mar. 8, 2022 to Mar. 31, 2023; Two file marks at base of shelter, 3.98 ft above land-surface datum, Mar. 31, 2023 to present.
PERIOD OF RECORD.--March 2022 to current year. Miscellaneous manual measurement--1979.
GAGE.--Water-stage recorder--15 minute; periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level, 0.42 ft below land-surface datum, Apr. 6, 2023; lowest water level, 3.49 ft below land-surface datum, Aug. 5, 2022, but may have been lower during period of instrument malfunction, Aug. 3-8, 2022.
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