LOCATION.--Lat 41°58'23.8", long
75°10'29.0" referenced to North American Datum of
1983, Delaware County, NY, Hydrologic Unit 02040102, on right
bank 3,000 ft upstream from bridge on County Highway 28 at
Fishs Eddy, 0.6 mi upstream from Fish Creek, 4.2 mi downstream
from Beaver Kill, and 11 mi upstream from the confluence of
East and West Branches near Hancock.
DRAINAGE AREA.--784 mi².
PERIOD OF RECORD.--October 1912 to current year. October
2001 through September 2004 published as East Branch Delaware
River above Read Creek at Fishs Eddy (station 01420980).
Monthly discharge only for some periods, published in WSP
1302.
REVISIONS HISTORY.--WDR NY-82-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum
of gage is 955.96 ft above NGVD of 1929 and 955.47 ft above
NAVD of 1988. Prior to Sept. 27, 1928, nonrecording gage, and
Sept. 28, 1928 to Nov. 1, 1967, water-stage recorder, at site
3,000 ft downstream at datum 5.0 ft lower. Nov. 2, 1967 to
Sept. 30, 2001, at site on left bank at same datum, and Oct. 1,
2001 to Sept. 30, 2004, at site 0.30 mi upstream at same
datum.
REMARKS.--
Subsequent to September 1954, entire flow from 371 mi² of
drainage area controlled by Pepacton Reservoir (station
01416900). Part of flow diverted for New York City municipal
supply. Remainder of flow (except for conservation releases and
spill) impounded for release during periods of low flow in the
lower Delaware River basin, as directed by the Delaware River
Master.
Water Year 2014: Records fair except those for estimated daily
discharges, which are poor.
Water Year 2015: Records poor.
Water Year 2016: Records fair except those prior to June 22,
which are poor.
Water Years 2017-23: Records good except those for
estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, since
construction of Pepacton Reservoir in 1954, 77,400 ft³/s, June
28, 2006, gage height, 21.43 ft, from rating curve extended
above 35,000 ft³/s; minimum discharge, 52 ft³/s, July 23, 1964,
gage height, 1.16 ft, site and datum then in use.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Oct. 9,
1903, reached a stage of 23.6 ft, at site 3,000 ft downstream
at datum 5.0 ft lower, from description obtained in April 1939,
from local residents who had experienced the flood (discharge,
about 70,000 ft³/s, from rating curve extended above 22,000
ft³/s).
EXTREMES FOR PERIOD PRIOR TO REGULATION.--Maximum
discharge, prior to construction of Pepacton Reservoir in 1954,
53,300 ft³/s, Aug. 24, 1933, gage height, 20.60 ft, site and
datum then in use, from rating curve extended above 22,000
ft³/s; minimum daily discharge, 68 ft³/s, Aug. 28, 1949;
minimum instantaneous discharge not determined.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE:
November 1967 to current year. From October 2001 to September
2004, published as East Branch Delaware River above Read Creek
at Fishs Eddy (station 01420980).
INSTRUMENTATION1.--Water-temperature
satellite and telephone telemeter provides 15-minute-interval
readings. From October 1975 to June 1993, water-temperature
recorder provided one-hour-interval readings. Prior to October
1975, water-temperature recorder provided continuous
recordings.
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 DAILY RECORD1.--WATER
TEMPERATURE: Prior to Oct. 1, 2007--Maximum (water years
1968-75, 1978, 1980-82, 1984, 1986-95, 1999-2003, 2005-07),
31.5 °C, Aug. 2, 1975; minimum (water years 1968-76, 1978-79,
1981-2007), 0.0 °C on many days during winter periods, except
1978. WATER TEMPERATURE: After Oct. 1, 2007--Maximum, 28.1 °C,
July 2, 2018; minimum, -0.1 °C, Jan. 2, 3, 2013.
1 Water-Quality Records