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USGS 410253072192601 S 90279. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 41°02'52.4", long 72°19'32.7" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at east side of Osprey Road, 87 ft south of Heron Lane, Shelter Island.
WELL CHARACTERISTICS.--Depth 22.5 ft. Upper casing diameter 2 in; top of first opening 20.5 ft, bottom of last opening 22.5 ft.
DATUM.--Land-surface datum is 20 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.35 ft below land-surface datum, 19.65 ft above National Geodetic Vertical Datum of 1929, Mar. 21, 1990 to present.
PERIOD OF RECORD.--March 1990 to current year.
GAGE.--Water level recorder installed November 2019 to February 2025; 15-minute recording interval. Periodic manual measurements by USGS personnel.
REMARKS.--Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 3.84 ft above NGVD of 1929, Apr. 7, 2010; lowest measured, 0.72 ft above NGVD of 1929, Dec. 13, 2007.
> Rating Information
Available Parameters Available Period
  
2023-08-28  2025-02-18








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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.