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USGS 404553073351201 N 1616. 3

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°45'53.3", long 73°35'12.0" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030202, at northeast corner of Post Avenue and Advent Street, Old Westbury.
WELL CHARACTERISTICS.--Depth 74.2 ft. Upper casing diameter 2 in; top of first opening 64.2 ft, bottom of last opening 69.2 ft.
DATUM.--Land-surface datum is 121 ft above National Geodetic Vertical Datum of 1929. Measuring point: Well was releveled on 06-25-2015, MP is Top of 2inch PVC casing, 120.29 ft above land-surface datum, Dec. 2, 2004 to present.  
PERIOD OF RECORD.--December 2004 to current year.
GAGE.--Water-level recorder installed December 2004; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
REMARKS.--Replaced well N1616.2 in December 2004 near same location. Cellular water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level recorded, 78.61 ft above NGVD of 1929, May 19, 26, 2010; lowest recorded, 66.64 ft above NGVD of 1929, Oct. 12, 2005.
> Rating Information
This station managed by the NY Water Science Center Coram.

Available Parameters Available Period
  
2007-10-11  2024-11-28








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

Groundwater level above NGVD 1929, feet
Most recent instantaneous value: 75.68 11-28-2024   13:00 EST
Graph of Groundwater level above NGVD 1929, feet

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