USGS Water-Year Summary 2020
01362500 ESOPUS CREEK AT COLDBROOK, NY
LOCATION - Lat 42°00'51", long 74°16'14" referenced to North American Datum of 1983, Ulster County, NY, Hydrologic Unit 02020006, on left bank at downstream side of bridge on Nissen Road in Coldbrook, 0.3 mi downstream from Little Beaver Kill, 1.5 mi upstream from Ashokan Reservoir, and 2.5 mi south of Mount Tremper.
DRAINAGE AREA - 192 mi².
PERIOD OF RECORD - January 1914 to September 1925 (monthly discharge only, furnished by State engineer and surveyor of New York, published in WSP 1302), October 1925 to September 1931 (monthly discharge only, furnished by Board of Water Supply, City of New York, published in WSP 1302), October 1931 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 621.54 ft above NGVD of 1929 and 620.86 ft above NAVD of 1988 (VERTCON). Prior to June 15, 1916, nonrecording gage at same site and datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 75,800 ft³/s, Aug. 28, 2011, gage height, 23.34 ft, outside gage height was 23.75 ft, from crest-stage gage, from rating curve extended above 15,000 ft³/s on basis of slope-area measurements at gage heights 12.39 ft, 15.15 ft, and 20.70 ft; minimum discharge not determined.
PERIOD OF DAILY RECORD -
WATER TEMPERATURES: June 1996 to current year.
INSTRUMENTATION - Water-temperature satellite and telephone telemeter provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Prior to Oct. 1, 2007--Maximum, 27.0 °C, Aug. 2, 2006; minimum (water year 1997-2007), 0.0 °C on many days during winter periods.
WATER TEMPERATURE: After Oct. 1, 2007--Maximum, 26.9 °C, Aug. 10, 2010; minimum, -0.5 °C, Jan. 21, Feb. 29, 2008.