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    This station is operated in cooperation with:
       NYS Department of Environmental Conservation

    LOCATION.--Lat 40°41'20", long 73°27'17" 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.
    PERIOD OF RECORD.--June to October 1903, December 1936 to March 2000, May 2005 to current year (monthly means estimated December 1959 to February 1961). Published as Massatayun Creek at Massapequa, December 1936 to September 1941.
    REVISED RECORDS.--WRD NY 1970: 1966-69 (M). WDR NY-09-2: Drainage area.
    GAGE.--Water-stage recorder and concrete control. Datum of gage is 18.31 ft above NGVD of 1929. Prior to October 1903, non-recording gage at different datum. December 1936 to March 1961, at datum 1.00 ft higher.
    REMARKS.--No estimated daily discharges. Records fair. Satellite gage-height telemeter at station.
    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, 0.32 ft3/s, part or all of each day Aug. 29 to Sept. 3, 8, 10-14, 1995, and result of unknown regulation Oct. 31, 2008; minimum gage height, 0.32 ft, Aug. 1, 1954, datum then in use.
    EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 110 ft3/s and maximum (*):
    Date  Time  Discharge (ft3/s)  Gage height (ft)
    Dec. 9     1145     146     1.63
    Mar. 30    1015    *266    *1.95

    Minimum discharge, 0.83 ft3/s, part of each day Sept. 4-7, 10, 11, gage height, 0.61 ft.
    INSTRUMENTATION1.--Water temperature satellite telemeter provides 15-minute-interval readings.
    EXTREMES FOR PERIOD OF RECORD1.--WATER TEMPERATURE: Maximum 30.4°C on July 19, 20, 2008; minimum 0.8°C on Dec. 20, 2009.
    EXTREMES FOR CURRENT YEAR1.--January to September 2008: WATER TEMPERATURE: Maximum 30.4°C on July 19, 20. Minimum 1.0 °C on Feb. 11.
    Water year 2009: WATER TEMPERATURE: Maximum 25.3°C on Aug. 22. Minimum 1.2°C on Jan. 28.
    Water year 2010: WATER TEMPERATURE: Maximum 25.0°C on Aug. 5. Minimum 0.8°C on Dec. 20.
    1 Water-Quality Records
    Derived from NY Annual Water-Data Report 2010

    Peak Flow and Stage Information
    This station managed by the NY Water Science Center, Coram Program Office.

    Available Parameters Available Period
    All 3 Available Parameters for this site
    00010 Temperature, water 2011-09-02  2011-09-26
    00060 Discharge 2007-10-01  2014-09-01
    00065 Gage height 2014-05-04  2014-09-01

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    Days  (7)

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    Summary of all available data for this site
    Instantaneous-data availability statement

    Discharge, cubic feet per second

    Most recent instantaneous value: 2.9   09-01-2014  18:00 EST
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    Daily discharge, cubic feet per second -- statistics for Sep 1 based on 68 years of record more
    Most Recent
    Value Sep 1
    Median Mean 75th
    0.32 2.9 3.2 5.0 6.3 8.7 20

    Gage height, feet

    Most recent instantaneous value: 0.67   09-01-2014  18:00 EST
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