LOCATION.--Lat 43°48'49.3", long 76°04'28.0" referenced to North American Datum of 1983, Jefferson County, NY, Hydrologic Unit 04140102, on left bank 250 ft upstream from bridge on Liberty Street, 0.2 mi downstream from tributary, 2.5 mi downstream from Adams, and 10.0 mi upstream from mouth.
DRAINAGE AREA.--137 mi².
PERIOD OF RECORD.--August 1957 to March 1995, annual maximum only--1996-2002, June 2002 to current year.
REVISIONS HISTORY.--WDR NY-85-1: 1963-64(M), 1976-77(M), 1980(M), 1984(M). WDR NY-92-1: 1963, 1976-77, 1984. WDR NY-01-1: Drainage area. The discharge associated with the measurement made on Oct. 30, 2017, was revised on Oct. 30, 2024, based on further review of the measurement. Discharge for the period Oct. 1, 2017, to Mar. 13, 2024, was revised on Nov. 22, 2024, based on changes to the stage-discharge rating.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 523.71 ft above NGVD of 1929 and 523.26 ft above NAVD of 1988.
REMARKS.--Moderate diurnal fluctuation at low flow caused by mills upstream from station.
Water Years 2014-24: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 7,700 ft³/s, Jan. 19, 1996, gage height, 11.06 ft, from floodmark in gage well; minimum discharge, 1.5 ft³/s, Sept. 17, 18, 1963, Aug. 19, 1964.

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