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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
404505073131501 S123414. 1
Northern Atlantic Coastal Plain aquifer system
Glacial Aquifer, Upper
Glacial Aquifer, Upper
LOCATION - Lat 40°45'04.4", long 73°13'14.5" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at east end of 41st Street, just east of Broadway, Islip.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 30 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 25 ft. Datum of gage is NGVD of 1929.
PERIOD OF RECORD - April 2005 to November 2023 (discontinued).
GAGE - Water-level recorder installed on April 2005; 15-minute recording interval. Periodic manual measurements made by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 26.57 ft above NGVD of 1929, Oct. 17, 2005; lowest recorded, 22.22 ft above NGVD of 1929, Sept. 1, 2016.
