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Water-Year Summary for Site 403727073154601

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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.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
62610 Elevation, GW, NGVD29(Mean)  
62611 Elevation, GW, NAVD88(Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 

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USGS Water-Year Summary 2024
403727073154601 S 21091. 1
Northern Atlantic Coastal Plain aquifer system
Lloyd Aquifer
LOCATION - Lat 40°37'28.3", long 73°15'46.2" referenced to North American Datum of 1983, Suffolk County, NY, Hydrologic Unit 02030202, at Robert Moses State Park, in water treatment building, Fire Island.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,921 ft. Upper casing diameter 6 in; top of first opening 1,918 ft, bottom of last opening 1,921 ft. Datum of gage is NGVD of 1929.
PERIOD OF RECORD - January 1968 to current year. Unpublished records for September 1962 to September 1975 are available in files of the U.S. Geological Survey.
GAGE - Water-level recorder installed October 1994 to January 2000, May 2001 to current year. Periodic manual measurements made by USGS personnel.
REMARKS - Water level affected by tidal fluctuation. Cellular water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 22.56 ft above NGVD 29, Apr. 16, 2007; lowest measured, 15.13 ft above NGVD 29, June 2, 1972.