USGS Water-Year Summary 2024
01423910 CANNONSVILLE RESERVOIR NEAR KELSEY, NY
LOCATION - Lat 42°05'19.7", long 75°18'45.0" referenced to North American Datum of 1983, Delaware County, NY, Hydrologic Unit 02040101, near left bank on downstream end of pier on State Highway 10 bridge, 3.3 mi upstream from Cannonsville Dam on West Branch Delaware River, and 5.9 mi northeast of Deposit.
DRAINAGE AREA - 394 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2019 to current year.
GAGE - Water-stage recorder. Datum of gage is NAVD of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood on June 29, 2006, reached an elevation of 1,157.52 ft above NAVD of 1988 (1,158.00 ft above NGVD of 1929), from furnished record of reservoir elevation at station 01424997, Cannonsville Reservoir near Stilesville, NY.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 1,154.54 ft, Apr. 8, 9, 2022; minimum elevation, 1,106.02 ft, Oct. 29, 2020.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE AT 1,053 FT ABOVE NAVD OF 1988: December 2019 to current year. WATER TEMPERATURE AT 1,107 FT ABOVE NAVD OF 1988: November 2019 to current year. WATER TEMPERATURE AT 1,144 FT ABOVE NAVD OF 1988: March 2020 to current year.
INSTRUMENTATION - Water-temperature recorder provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE AT 1,053 FT ABOVE NAVD OF 1988: Maximum, 17.5 °C, Oct. 19, 2021, Sept. 27, 2022; minimum, 1.6 °C, Feb. 3, 2023. WATER TEMPERATURE AT 1,107 FT ABOVE NAVD OF 1988: Maximum, 27.1 °C, Aug. 8, 2022; minimum, 1.6 °C, Jan. 29, 30, 2021, Dec. 28, 2022. WATER TEMPERATURE AT 1,144 FT ABOVE NAVD OF 1988: Maximum, 28.4 °C, Aug. 27, 2021; minimum, 0.9 °C, Feb. 27, 2022, Feb. 4, 2023.