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Water-Year Summary for Site 01309500

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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
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 40°41'20.4", long 73°27'19.4" referenced to North American Datum of 1983, Nassau County, NY, Hydrologic Unit 02030202, on left bank 3,000 ft upstream from bridge on Clark Boulevard in Massapequa, and 350 ft west of Lake Shore Drive at Garfield Street in Massapequa Park.
DRAINAGE AREA - 38.6 mi².
REVISIONS HISTORY - WRD NY 1970: 1966-69 (M). WDR NY-09-2: Drainage area.
PERIOD OF RECORD - June to October 1903, published in Professional Paper 44, December 1936 to March 2000 (monthly means estimated December 1959 to February 1961), May 2005 to September 2010, October 2012 to current year. Published as Massatayun Creek at Massapequa, December 1936 to September 1941.
GAGE - Water-stage recorder and concrete control. Datum of gage is 18.31 ft above NGVD of 1929 and 17.12 ft above NAVD of 1988 (VERTCON). Prior to October 1903, non-recording gage at different datum. December 1936 to March 1961, at datum 1.00 ft higher.
REMARKS - Water Years 2014-23: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 510 ft³/s, July 29, 1980, gage height, 2.40 ft, from rating curve extended above 200 ft³/s; minimum discharge, 0.23 ft³/s, Aug. 31, Sept. 1, 2016; minimum gage height, 0.32 ft, Aug. 1, 1954, datum then in use.