USGS Water-Year Summary for Site 421821074012701

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Water-Year Summary for Site 421821074012701

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Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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	Available Parameters
	72019 Water level, depth LSD(Mean)

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Water year 2025: 2025-10-01 to 2026-09-30

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USGS Water-Year Summary 2025

421821074012701 Local number, G-390, near Cairo NY

Other aquifers
Hamilton Group

LOCATION - Lat 42°18'21.0", long 74°01'26.8" referenced to North American Datum of 1983, Greene County, NY, Hydrologic Unit 02020006, near Cairo.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 408 ft. Upper casing diameter 8 in; top of first opening 34.5 ft, bottom of last opening 408 ft.

DATUM - Land-surface datum is 490.59 ft above North American Vertical Datum of 1988. Measuring point: Top of floor of metal shelter, 1.51 ft above land-surface datum, Aug. 1, 2024 to present.

PERIOD OF RECORD - August 2024 to current year.

GAGE - Water-stage recorder--15 minute; periodic measurements by USGS personnel.

REMARKS - Satellite water-level telemeter at station. Water level is affected by nearby periodic pumping.

EXTREMES FOR PERIOD OF RECORD - Highest water level, 13.31 ft below land-surface datum, May 10, 2025; lowest water level, 34.81 ft below land-surface datum, Aug. 29, 2024, affected by nearby pumping.