Funding for this site is provided by:
40°45'05", long 73°13'15" referenced to North
American Datum of 1927, Suffolk County, NY, Hydrologic Unit 02030202,
at east end of 41st Street, just east of Broadway, Islip.
Depth 30 ft. Upper casing diameter 2 in;
top of first opening 15 ft, bottom of last opening 25 ft.
PERIOD OF RECORD.--
April 2005 to current year.
Digital water-level recorder; 15-minute recording
interval. Periodic measurements made with chalked steel tape or
calibrated electric tape by U.S. Geological Survey personnel.
Satellite water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Highest water level recorded,
26.54 ft above NGVD of 1929, October 17, 2005; lowest recorded, 22.25
ft above NGVD of 1929, September 1, 2016.