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    This station is operated in cooperation with:
       U.S. Geological Survey

    LOCATION.--Lat 42°49'45", long 73°39'58" referenced to North American Datum of 1983, Saratoga County, NY, Hydrologic Unit 02020003, 0.4 mi upstream from dam at Lock 1 of the Champlain (Barge) Canal, 2.8 mi northeast of Waterford, and 3.4 mi downstream from dam at Lock 2 of the Champlain (Barge) Canal.
    DRAINAGE AREA.--4,605 mi2.
    PERIOD OF RECORD.--October 1887 to September 1956, October 1976 to current year. Prior to October 1976, published as "at Mechanicville" (station 01335500, drainage area 4,500 mi2). Daily discharge records from October 1976 to September 1981 are published with suspended-sediment data as Hudson River at Waterford (station 01335770).
    REVISED RECORDS.--WDR NY-99-1: 1998.
    GAGE.--Water-stage recorder. Since Oct. 1, 1998, supplementary water-stage and taintor gate-position recorders, 0.4 mi downstream at dam at Lock 1. Datum of gage is NGVD of 1929. Prior to October 1976, various gages at site 5.8 mi upstream at different datum. October 1976 to January 1978, nonrecording gage 200 ft downstream.
    REMARKS.--Records fair except those for estimated daily discharges, which are poor. Flow regulated appreciably by Great Sacandaga Lake since March 1930 (station 01323500) and Indian Lake (station 01314500). Diurnal fluctuation caused by powerplants upstream from station. Water is diverted into St. Lawrence River basin through Glens Falls feeder, Bond Creek, and Champlain (Barge) Canal, and occasionally may be received from that basin through summit level of Champlain (Barge) Canal at Dunham Basin. Water-discharge data for July 1992 through May 1994 based on records for Hudson River at Stillwater (station 01331095) and Hoosic River near Eagle Bridge (station 01334500) due to reconstruction of dam at Lock 1. Satellite and telephone gage-height telemeter at station.
    EXTREMES FOR PERIOD OF RECORD.--Maximum discharge since construction of Great Sacandaga Lake, 118,000 ft3/s, Jan. 1, 1949; maximum gage height, 36.38 ft, May 30, 31, 1984; minimum daily discharge, 614 ft3/s, Feb. 1, 1931; minimum instantaneous discharge not determined.
    EXTREMES FOR PERIOD PRIOR TO REGULATION.--Maximum discharge prior to construction of Great Sacandaga Lake, 120,000 ft3/s, Mar. 28, 1913.
    Derived from NY Annual Water-Data Report 2013

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

    Available Parameters Available Period
    All 2 Available Parameters for this site
    00060 Discharge 2007-10-01  2014-08-23
    00065 Gage height 2014-04-25  2014-08-23

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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: Ssn   08-23-2014  09:30 EST
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    Daily discharge, cubic feet per second -- statistics for Aug 23 based on 63 years of record more
    Most Recent
    Value Aug 23
    Median Mean 75th
    Ssn 1460 2800 3600 3920 4440 12400

    Gage height, feet

    Most recent instantaneous value: 30.39   08-23-2014  09:30 EST
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