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This station is operated in cooperation with:
   National Weather Service
   U.S. Army Corps of Engineers - Buffalo District
   U.S. Geological Survey

LOCATION.--Lat 42°55'04", long 77°45'26" referenced to North American Datum of 1983, Livingston County, NY, Hydrologic Unit 04130003, on right bank 250 ft downstream from bridge on U.S. Highway 20 (State Highway 5), 0.3 mi west of Avon, 0.8 mi downstream from Conesus Creek, and 35.6 mi upstream from mouth.
DRAINAGE AREA.--1,673 mi2.
PERIOD OF RECORD.--August 1955 to current year.
REVISED RECORDS.--WDR NY-82-3: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 500.11 ft above NGVD of 1929.
REMARKS.--Records good except those for estimated daily discharges, which are fair. Diurnal fluctuation at low flow caused by powerplant. Flow regulated to some extent by Rushford Lake, at high flows by Mount Morris Lake (station 04224000), and by Conesus Lake (station 04227980). Monthly figures of discharge and runoff August 1955 to September 1965 adjusted for change in contents in Rushford Lake and Mount Morris Lake. U.S. Army Corps of Engineers, Buffalo District, telephone and satellite gage-height telemeters at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,500 ft3/s, June 25, 1972, gage height 40.67 ft; minimum discharge, 47 ft3/s, Oct. 10, 11, 1980, gage height, 13.70 ft.
Derived from NY Annual Water-Data Report 2013

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

Available Parameters Available Period
All 2 Available Parameters for this site
00060 Discharge 2007-10-01  2014-09-18
00065 Gage height 2014-05-21  2014-09-18

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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: 369   09-18-2014  10:00 EST
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Daily discharge, cubic feet per second -- statistics for Sep 18 based on 1 years of record more
Mean Min
Median Max
Most Recent
Value Sep 18
325 325 325 325 369

Gage height, feet

Most recent instantaneous value: 14.88   09-18-2014  10:00 EST
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