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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
03011020 ALLEGHENY RIVER AT SALAMANCA, NY
LOCATION - Lat 42°09'24.6", long 78°42'56.0" referenced to North American Datum of 1983, Cattaraugus County, NY, Hydrologic Unit 05010001, on left bank 230 ft upstream from Main Street bridge in Salamanca, 1.3 mi downstream from Great Valley Creek, and 1.6 mi upstream from Little Valley Creek.
DRAINAGE AREA - 1,608 mi².
REVISIONS HISTORY - WSP 1385: 1907, 1909-12, 1913 (M), 1914-15, 1916-17 (M), 1925, 1927. WSP 1907: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 1903 to current year. Monthly discharge only for some periods, published in WSP 1305. Prior to October 1964, published as "at Red House" (03011500).
GAGE - Water-stage recorder. Datum of gage is 1,358.00 ft above NGVD of 1929 (Corps of Engineers bench mark) and 1,357.49 ft above NAVD of 1988. Prior to Sept. 3, 1917, nonrecording gage, and Sept. 3, 1917 to Sept. 30, 1964, water-stage recorder, at site 7.5 mi downstream at different datum.
REMARKS - Water Years 2014-15: Records good except those for estimated daily discharges, which are fair.
Water Years 2016-23: Records good except those for estimated daily discharges, which are poor.
Water Years 2016-23: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 73,000 ft³/s, June 23, 1972, gage height, 24.01 ft, from floodmarks; minimum daily discharge, 79 ft³/s, Sept. 10, 11, 1971; minimum instantaneous discharge not determined.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURES: October 2011 to current year.
INSTRUMENTATION - Water temperature recorder since October 2011 provides 15-minute interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURES: Maximum, 29.5°C, July 10, 2020; minimum, -0.2°C, on several days during 2019 winter period.
