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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 land-surface datum, Mar. 21, 1990 to present.
PERIOD OF RECORD.--March 1990 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
REMARKS.--Water level affected by tidal fluctuation.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 3.84 ft above sea level, April 7, 2010; lowest measured, 0.72 ft above sea level, December 13, 2007.
> Rating Information
Available Parameters Available Period
  
2023-08-28  2024-10-31








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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: 1.40 10-31-2024   23:00 EST
Graph of Groundwater level above NGVD 1929, feet

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Field Visit data are no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages

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