This station is operated in cooperation
New York City Department of Environmental
NYS Department of Environmental
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. Water-quality sampling site at discharge station.
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.
Water-stage recorder and crest-stage gage. Datum of gage
is 621.54 ft above NGVD of 1929. Prior to June 15, 1916, nonrecording
gage at same site and datum.
Records good except those for estimated daily
discharges, which are poor. Since 1924, water diverted from Schoharie
Reservoir through Shandaken Tunnel (station 01362230) enters Esopus
Creek 10.5 mi upstream from station and is included in records of daily
discharge. Slight diversion from Beaver Kill into Cooper Lake for water
supply of Kingston. Satellite and telephone gage-height and temperature
telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 75,800
/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
PERIOD OF DAILY RECORD1.--
WATER TEMPERATURES: June 1996 to current year.
Water-temperature satellite and
telephone telemeter provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD1.--
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
WATER TEMPERATURE: After Oct. 1, 2007--Maximum, 26.9 °C, Aug. 10, 2010;
minimum, -0.5 °C, Jan. 21, Feb. 29, 2008.
1 Water-Quality Records
Peak Flow and Stage Information