LOCATION.--Lat 42°05'50", long 76°15'59" referenced to North American Datum of 1983, Tioga County, NY, Hydrologic Unit 02050103, on right bank in pump house for village sewage treatment plant, 0.4 mi downstream from bridge on State Highway 96, at Owego.
DRAINAGE AREA.--4,216 mi².
PERIOD OF RECORD.--Annual maximum only--1988-96, 1999-2009, October 2009 to current year.
REVISED RECORDS.--WDR NY-89-3: 1988 (M). WDR NY-04-3: 2002-03 (M). WDR-US-2006: 2002-05 (M).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 776.64 ft above NGVD of 1929.
REMARKS.--Minor regulation by upstream lakes and reservoirs. Water Year 2014: Records good except those for estimated daily discharges, which are fair.
Water Year 2015: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 159,000 ft³/s, Sept 8, 2011, gage height 39.62 ft, from floodmark on pump house; minimum discharge, 643 ft³/s, Jul. 23, 2012, gage height, 12.92 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 107,000 ft³/s, Mar. 18, 1936, provided by the U.S. Army Corps of Engineers.

Peak Flow and Stage Information