LOCATION.--Lat 41°55'13.5", long 74°34'27.8" referenced to North American Datum of 1983, Sullivan County, NY, Hydrologic Unit 02040104, on left bank about 50 ft upstream from bridge on County Highway 157 in Claryville.
DRAINAGE AREA.--33.8 mi².
PERIOD OF RECORD.--July 1991 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 1,615.82 ft above NAVD of 1988.
REMARKS.--Diversion upstream from station to maintain lake volume at Frost Valley YMCA camp. Excess lake water is diverted back into the river upstream from station.
Water Years 2014-24: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,600 ft³/s, Aug. 28, 2011, gage height, 15.38 ft, from rating curve extended above 3,400 ft³/s on basis of runoff comparisons with nearby stations; minimum discharge, 5.9 ft³/s, result of freezeup, Mar. 14, 1993; minimum gage height, 3.61 ft, Aug. 27, 2005.
PERIOD OF RECORD (CLIM).--September 2019 to current year.
INSTRUMENTATION (CLIM).--Air temperature thermistor housed in radiation shield, mounted 8 ft above land surface.
EXTREMES FOR PERIOD OF RECORD (CLIM).--Maximum air temperature, 31.9°C, Aug. 4, 2022; minimum, -25.3°C, Jan. 22, 2022.
PERIOD OF RECORD¹.-- SPECIFIC CONDUCTANCE: January 2020 to current year. WATER TEMPERATURE: January 2020 to current year.
INSTRUMENTATION¹.--A continuous water-quality monitor with water temperature and specific conductance provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD¹.--SPECIFIC CONDUCTANCE: Maximum, 43 uS/cm at 25 °C, Aug. 30, 2022; minimum, 13 uS/cm at 25 °C, Oct. 26, 27, 2021, Dec. 18, 2023, Apr. 12, 2024.
WATER TEMPERATURE: Maximum, 25.0 °C, July 15, 2024; minimum, 0.0 °C, on many days during winter periods.
¹ Water-Quality Records

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