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USGS 403727073154503 S 21311. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°37'28.3", long 73°15'46.2" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at Robert Moses State Park, in water treatment building, Fire Island.
WELL CHARACTERISTICS.--Depth 721 ft. Upper casing diameter 6 in; top of first opening 711 ft, bottom of last opening 721 ft. Datum of gage is NGVD of 1929.
DATUM.--Land-surface datum is 8.82 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 20.01 ft above land-surface datum, 30.01 ft above land-surface datum, Jun. 3, 1965 to Feb. 6, 2024; Top of blue casing, 30.162 ft above land-surface datum, Feb. 6, 2024 to May. 7, 2024; Top of blue casing, 29.01 ft above land-surface datum, May. 7, 2024 to present.  
PERIOD OF RECORD.--February 1968 to current year. Unpublished records for November 1962 to September 1975 are available in files of the U.S. Geological Survey.
GAGE.--Water-level recorder installed October 1994 to March 2000, May 2001 to March 2009, September 2009 to current year. Periodic manual measurements made by USGS personnel.
REMARKS.--Water level affected by tidal fluctuation. Water-level recorded on October 29, 2012 attributed to tidal forcing from Hurricane Sandy storm tide. Cellular water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level recorded, 12.57 ft above NAVD of 1988, Oct. 29, 2012; lowest measured, 4.20 ft above NAVD of 1988, Feb. 23, 1972.
> Rating Information
This station managed by the NY Water Science Center Coram.

Available Parameters Available Period
  
2007-10-01  2024-05-07
1994-10-01  2024-11-21








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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: 8.99 11-21-2024   04:30 EST
Graph of Groundwater level above NAVD 1988, feet

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