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USGS 404859073194002 S 75454. 2

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°49'00.5", long 73°19'38.0" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at Dix Hills Park and Golf Course, 180 ft west of DeForest Road, 154 ft north of parking lot, northernmost well, Dix Hills.
WELL CHARACTERISTICS.--Depth 740 ft. Upper casing diameter 4 in; top of first opening 730 ft, bottom of last opening 735 ft.
DATUM.--Land-surface datum is 230.7 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 0.14 ft below land-surface datum, 230.56 ft above land-surface datum, Mar. 27, 1984 to present.
PERIOD OF RECORD.--March 1984 to current year.
GAGE.--Measurement with chalked steel tape by United States Geological Survey personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 74.05 ft above NGVD of 1929, Mar. 21, 1991; lowest measured, 61.34 ft above NGVD of 1929, Oct. 17, 2002.
> Rating Information
Available Parameters Period of Record
  
2020-02-22  2024-02-06








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Groundwater level above NGVD 1929, feet


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