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USGS 410430072202301 S 51176. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 41°04'30.6", long 72°20'22.4" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at southeast corner of Ferry Road (Route 114) and Manwaring Road, Shelter Island.
WELL CHARACTERISTICS.--Depth 59 ft. Upper casing diameter 6 in; top of first opening 47 ft, bottom of last opening 57 ft.
DATUM.--Land-surface datum is 39.6 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of steel flange, 1.88 ft below land-surface datum, 37.72 ft above land-surface datum, Mar. 5, 1974 to present.
PERIOD OF RECORD.--June 1974 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 8.88 ft above sea level, April 20, 2010; lowest measured, 2.42 ft above sea level, December 12, 1981.
> Rating Information
Available Parameters Available Period
  
2020-01-24  2024-11-25








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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: 3.92 11-25-2024   06:00 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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