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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
04213401 WALNUT CREEK AT U.S. ROUTE 20 AT SILVER CREEK, NY
LOCATION - Lat 42°32'18.1", long 79°10'08.3" referenced to North American Datum of 1983, Chautauqua County, NY, Hydrologic Unit 04120101, on right bank at bridge on State Highway 20, in village of Silver Creek, 0.5 miles upstream from confluence with Silver Creek.
DRAINAGE AREA - 25.6 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 2017 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 587.55 ft above NAVD of 1988.
REMARKS - Water Years 2017-24: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,070 ft³/s, Nov. 5, 2017, gage height, 9.05 ft; minimum discharge, 0.44 ft³/s, Aug. 20, 2022, gage height 1.81 ft; minimum gage height, 1.78 ft, Mar. 18, 25, 2018.
