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Water-Year Summary for Site 01365100

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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.
Available Parameters
00010 Temperature, water(Max.,Mean,Min.)  
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
01365100 CANNONSVILLE RESERVOIR DIVERSION CHANNEL NEAR GRAHAMSVILLE, NY
LOCATION - Lat 41°51'07.6", long 74°30'46.9" referenced to North American Datum of 1983, Sullivan County, NY, Hydrologic Unit 02020007, on right bank 400 ft downstream from West Delaware Tunnel Outlet, 6.0 mi upstream from Merriman Dam on Rondout Reservoir.
DRAINAGE AREA - See REMARKS.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 2018 to current year.
GAGE - Water-stage recorder, acoustic velocity meter, and crest-stage gage. Datum of gage is 833.89 ft above NAVD of 1988.
REMARKS - Flow is net diversion through West Delaware Tunnel from Cannonsville Reservoir (Delaware River Basin) into Rondout Reservoir (Hudson River Basin), and is completely regulated by Cannonsville Reservoir (station 01423910).
Water Years 2019-22: Records fair except those for estimated daily discharge, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 797 ft³/s, Mar. 30, 2019; no flow on many days.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: December 2018 to current year.
INSTRUMENTATION - Water-temperature satellite telemeter provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 24.1 °C, Sept. 2, 2022; minimum, 0.4 °C, Jan. 22, 2019.