USGS Water-Year Summary 2024
405249073010701 S120291. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
LOCATION - Lat 40°52'52.0", long 73°00'26.5" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at east side of Port Jefferson - Patchogue Road (State Route 112), south of intersection with Hawkins Path, behind Suffolk County Water Authority building complex, Coram.
REVISIONS HISTORY - Groundwater levels for the period June 20, 2013 to Dec. 9, 2020, were deleted on July 21, 2021, due to instrumentation errors, and the period of record minimum was revised to match lowest measured tapedown.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 85 ft. Upper casing diameter 2 in; top of first opening 60 ft, bottom of last opening 65 ft. Datum of gage is NGVD of 1929.
PERIOD OF RECORD - September 2006 to current year.
GAGE - Water-level recorder installed October 2006; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 66.37 ft above NGVD of 1929, May 8, 2010; lowest measured, 54.68 ft above NGVD of 1929, Oct. 31, 2017.