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USGS 405214073353901 N 6668. 2

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°52'13.70", long 73°35'39.30" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit 02030201,
WELL CHARACTERISTICS.--Depth 50 ft. Upper casing diameter undefined; top of first opening 40 ft, bottom of last opening 45 ft.
DATUM.--Land-surface datum is 105 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.3 ft below land surface datum, 104.74 ft above National Geodetic Vertical Datum of 1929, Jul. 7, 2010 to present.
PERIOD OF RECORD.--November 2007 to current year.
GAGE.--Periodic manual measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest measured, 74.14 ft above NGVD of 1929, May 25, 2010; lowest measured, 64.98 ft above NGVD of 1929, Apr. 19, 2017.
> Rating Information
This station managed by the NY Water Science Center Coram.

Available Parameters Available Period
  
2026-05-15  2026-10-14








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Summary of all available data for this site
Instantaneous-data availability statement

Groundwater level above NAVD 1988, feet
Most recent instantaneous value: 62.81 10-14-2026   13:00 EST
Graph of Groundwater level above NAVD 1988, feet

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