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Water-Year Summary for Site 01434021

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Available Parameters
00010 Temperature, water(Min.,Max.,Mean)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Mean,Min.,Max.)  

Water year 2025: 2025-10-01 to 2026-09-30
 
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USGS Water-Year Summary 2025
01434021 WEST BRANCH NEVERSINK RIVER AT WINNISOOK LAKE NEAR FROST VALLEY, NY
LOCATION - Lat 42°00'40", long 74°24'52" referenced to North American Datum of 1983, Ulster County, NY, Hydrologic Unit 02040104, on right bank 0.1 mi southwest of Winnisook Lake, and 4.5 mi northeast of Frost Valley.
DRAINAGE AREA - 0.83 mi².
REVISIONS HISTORY - WDR NY-94-1: 1992-93(P). WDR NY-01-1: 2000.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1991 to March 2013, September 2019 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2,675.00 ft above NAVD of 1988.
REMARKS - Water Years 2019-24: Records fair except those below 1.0 ft³/s and those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 344 ft³/s, Aug. 28, 2011, gage height, 4.76 ft, from rating curve extended above 65 ft³/s on basis of runoff comparisons with nearby stations; minimum discharge, 0.02 ft³/s, Feb. 26, 27, 2021, Aug. 2, 5, 2024; minimum gage height, 0.93 ft, Aug. 6, 7, 8, 1991.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: September 2019 to current year. SPECIFIC CONDUCTANCE: September 2019 to current year.
INSTRUMENTATION - A continuous water-quality monitor with water temperature and specific conductance provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 16.4 °C, Aug. 8, 2022; minimum, -0.1 °C, on several days during winter periods.
SPECIFIC CONDUCTANCE: Maximum, 25 uS/cm at 25 °C, Aug. 9, 2024; minimum, 9 uS/cm at 25 °C, May 24, 2020, Jan. 9, 2024, Jan. 2, 2025.