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    This station is operated in cooperation with:
       National Weather Service
       U.S. Army Corps of Engineers - Buffalo District
       U.S. Geological Survey

    LOCATION.--Lat 42°55'04", long 77°45'26" referenced to North American Datum of 1983, Livingston County, NY, Hydrologic Unit 04130003, on right bank 250 ft downstream from bridge on U.S. Highway 20 (State Highway 5), 0.3 mi west of Avon, 0.8 mi downstream from Conesus Creek, and 35.6 mi upstream from mouth.
    DRAINAGE AREA.--1,673 mi2.
    PERIOD OF RECORD.--August 1955 to current year.
    REVISED RECORDS.--WDR NY-82-3: Drainage area.
    GAGE.--Water-stage recorder. Datum of gage is 500.11 ft above NGVD of 1929.
    REMARKS.--Records good except those for estimated daily discharges, which are fair. Diurnal fluctuation at low flow caused by powerplant. Flow regulated to some extent by Rushford Lake, at high flows by Mount Morris Lake (station 04224000), and by Conesus Lake (station 04227980). Monthly figures of discharge and runoff August 1955 to September 1965 adjusted for change in contents in Rushford Lake and Mount Morris Lake. U.S. Army Corps of Engineers, Buffalo District, telephone and satellite gage-height telemeters at station.
    EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,500 ft3/s, June 25, 1972, gage height 40.67 ft; minimum discharge, 47 ft3/s, Oct. 10, 11, 1980, gage height, 13.70 ft.
    Derived from NY Annual Water-Data Report 2013

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

    Available Parameters Available Period
    All 2 Available Parameters for this site
    00060 Discharge 2007-10-01  2014-08-21
    00065 Gage height 2014-04-23  2014-08-21

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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: 590   08-21-2014  10:00 EST
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    Daily discharge, cubic feet per second -- statistics for Aug 21 based on 1 years of record more
    Mean Min
    Median Max
    Most Recent
    Value Aug 21
    266 266 266 266 590

    Gage height, feet

    Most recent instantaneous value: 15.75   08-21-2014  10:00 EST
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