Funding for this site is provided by:
42°02'16", long 73°58'19" referenced to North
American Datum of 1983, Ulster County, NY, Hydrologic Unit 02020006, on
left bank at downstream side of bridge on Glasco Turnpike, 0.8 mi east
of Mount Marion, 1.6 mi downstream from Plattekill Creek, and 4.5 mi
upstream from mouth.
PERIOD OF RECORD.--
Occasional miscellaneous discharge
measurements, 1902, 1951, 1956, 1966, 1967, 1969. April 1907 to
December 1913 (furnished by Board of Water Supply, City of New York),
January 1914 to March 1918 (monthly discharges only, furnished by Board
of Water Supply, City of New York, published in WSP 1302), March 1970
to current year.
Water-stage recorder and crest-stage gage. Datum of gage
is 40.15 ft above NGVD of 1929. Prior to Aug. 12, 1970, nonrecording
gage at same site (at different datum April 1907 to March 1918).
Flow from 256 mi2
of drainage area
regulated by Ashokan Reservoir since Sept. 9, 1913. Water diverted from
Schoharie Creek through Shandaken Tunnel (station 01362230) since Feb.
3, 1924, enters Esopus Creek about 12.2 mi upstream from Ashokan
Reservoir. Diversion from Plattekill Creek for water supply of village
of Saugerties. Slight diversion at headwaters into Cooper Lake for
water supply of Kingston. Diversions upstream during summer months for
irrigation purposes. Diversions for water supply of city of New York
made from Ashokan Reservoir (station 01363400). Discharge records for
this station now represent the natural flow from 112 mi2
together with conservation releases and spillage during high stages
from the upstream reservoirs. Water Years 2014-15: Records good except
those for estimated daily discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge observed,
/s, Apr. 26, 1910, gage height, 25.10 ft, datum
then in use; maximum discharge since March 1970, 30,500
/s, Apr. 3, 2005, gage height, 26.46 ft, outside gage
height was 26.19 ft, from crest-stage gage; minimum discharge, 5.3
/s, Aug. 10, 1999, gage height, 11.51 ft.
PERIOD OF DAILY RECORD1.--
DISCHARGE: November 2013 to current year.
Turbidity data are collected every 15
minutes using an in-situ turbidity probe located in a separate 2 inch
pipe about 10 ft upstream of the automatic sampler intake tubing. Daily
suspended-sediment load and concentration are derived from a regression
equation relating turbidity to suspended-sediment concentration.
EXTREMES FOR PERIOD OF DAILY
SUSPENDED-SEDIMENT CONCENTRATION: Maximum
daily mean, 439 mg/L, July 16, 2014; minimum daily mean, 1 mg/L, Feb.
23, 24, 27, 2015.
SUSPENDED-SEDIMENT DISCHARGE: Maximum daily, 6,200 tons, Sept. 30,
2015; minimum daily, 0.23 ton, Sept. 8, 9, 2015.
1 Water-Quality Records
Peak Flow and Stage Information