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.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE:
October 1996 to current year.
INSTRUMENTATION1.--Water-temperature
satellite telemeter provides 15-minute-interval readings.
REMARKS1.--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 RECORD1.--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.
1 Water-Quality Records