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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
01427000 WEST BRANCH DELAWARE RIVER AT HANCOCK, NY
LOCATION - Lat 41°57'07.8", long 75°17'27.4" referenced to North American Datum of 1983, Delaware County, NY, Hydrologic Unit 02040101, at bridge at end of Pennsylvania State Highway 191 in Hancock, and 1.3 mi upstream from confluence with East Branch Delaware River.
DRAINAGE AREA - 650 mi².
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1996 to current year.
INSTRUMENTATION - Water-temperature satellite telemeter provides 15-minute-interval readings.
REMARKS - Temperature readings prior to Oct. 1, 2007, rounded to the nearest 0.5 °C. Water temperature is affected by release of water from upstream reservoir.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Prior to Oct. 1, 2007--Maximum, 25.0 °C, July 11, 12, 2005; minimum, 0.0 °C on many days during winter periods.
WATER TEMPERATURE: After Oct. 1, 2007--Maximum, 23.4 °C, May 26, 2010; minimum, -0.2 °C on several days during 2023 water year winter period.
