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USGS 403927073360601 N 14419. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°39'26.8", long 73°36'05.5" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit is unknown,  
WELL CHARACTERISTICS.--Depth 170 ft. Upper casing diameter undefined; top of first opening 140 ft, bottom of last opening 160 ft.
DATUM.--Land-surface datum is 15 ft above North American Vertical Datum of 1988. Measuring point: Top of north side of plastic well casing, 15.28 ft above North American Vertical Datum of 1988, UNDEFINED BEGIN DATE to present.
> Rating Information
Available Parameters Period of Record
  
2025-03-14  2025-06-17








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Groundwater level above NAVD 1988, feet

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