LOCATION.--Lat 42°33'09.4", long 76°32'01.8" referenced to North American Datum of 1983, Tompkins County, NY, Hydrologic Unit 04140201, on right bank, at cul-de-sac of Mill Street in Ludlowville, 0.1 mi downstream of Dug Street bridge, and 1.6 mi upstream of mouth.
DRAINAGE AREA.--87.7 mi².
PERIOD OF RECORD.--July 2006 to September 2009, February 2013 to current year.
REVISIONS HISTORY.--2009 (Date of peak). 2015 (M).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 418.00 ft above NAVD of 1988.
REMARKS.--Water Years 2014-16: Records good except those for estimated daily discharges, which are fair. Water Years 2017-23: Records fair except those for estimated daily discharges and those below 1.0 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,040 ft³/s, Aug. 19, 2021, gage height, 5.36 ft; maximum gage height, 6.26 ft, Feb. 17, 2022 (ice jam); minimum discharge, 0.27 ft³/s, Aug. 22, 2020, gage height, 0.05 ft.
PERIOD OF DAILY RECORD¹.--SUSPENDED-SEDIMENT CONCENTRATION: April 2007 to September 2009. SUSPENDED-SEDIMENT DISCHARGE: April 2007 to September 2009.
COOPERATION¹.--Samples were analyzed by personnel from the City of Ithaca Department of Public Works (Water and Sewer Division).
EXTREMES FOR PERIOD OF DAILY RECORD¹.--SEDIMENT CONCENTRATION: Maximum daily mean, 2,000 mg/L, Dec. 23, 2007; minimum daily mean, 1 mg/L on several days in 2008 and 2009. SEDIMENT LOAD: Maximum daily, 17,900 tons, Dec. 23, 2007; minimum daily 0.02 tons on several days in 2008.
¹ Water-Quality Records

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