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USGS 405856072324001 S125004. 1

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 40°58'56.53", long 72°32'40.88" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at north side of Main Road (State Route 25), east of Laurel Lake, Mattituck.
WELL CHARACTERISTICS.--Depth 21.5 ft. Upper casing diameter 1.25 in; top of first opening 18.5 ft, bottom of last opening 21.5 ft. Datum of gage is NAVD of 1988.
DATUM.--Land-surface datum is 7 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 8.42 ft above North American Vertical Datum of 1988, Dec. 10, 2015 to present.  
PERIOD OF RECORD.--March 2014 to current year.
GAGE.--Water-level recorder installed May 2015; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level recorded, 5.85 ft above NAVD of 1988 (6.79 ft above NGVD of 1929), May 20, 2019; lowest measured, 1.42 ft above NAVD of 1988 (2.36 ft above NGVD of 1929), Dec. 10, 2015.
> Rating Information
This station managed by the NY Water Science Center Coram.

Available Parameters Period of Record
  
2015-05-06  2017-09-30
2017-10-01  2026-01-21








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Groundwater level above NAVD 1988, feet

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