PROVISIONAL DATA SUBJECT TO REVISION
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Site Information
LOCATION.--Lat 42°02'10.7", long
78°20'32.5" referenced to North American Datum of
1983, Cattaraugus County, NY, Hydrologic Unit 05010001, on
right bank, in pump house, 1,000 ft downstream from bridge on
State Highway 417 in Portville.
DRAINAGE AREA.--47.7 mi².
PERIOD OF RECORD.--June 2010 to current year (gage heights only).
GAGE.--Water-stage recorder. Datum of gage is 1,411.75 ft above NGVD of 1929 and 1,410.93 ft above NAVD of 1988.
REMARKS.--Minimum recordable gage height, 2.88 ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 17.41 ft, Dec. 2, 2010 (backwater from Allegheny River); minimum gage height not determined.
DRAINAGE AREA.--47.7 mi².
PERIOD OF RECORD.--June 2010 to current year (gage heights only).
GAGE.--Water-stage recorder. Datum of gage is 1,411.75 ft above NGVD of 1929 and 1,410.93 ft above NAVD of 1988.
REMARKS.--Minimum recordable gage height, 2.88 ft.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 17.41 ft, Dec. 2, 2010 (backwater from Allegheny River); minimum gage height not determined.
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