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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01365550 CHESTNUT CREEK AT MOUTH AT GRAHAMSVILLE, NY
LOCATION - Lat 41°50'56.7", long 74°31'54.6" referenced to North American Datum of 1983, Sullivan County, NY, Hydrologic Unit 02020007, on right bank, 20 ft downstream from bridge on State Highway 55, 1,900 ft downstream from Neversink Reservoir Diversion, and 1,000 ft upstream from Rondout Reservoir, at Grahamsville.
DRAINAGE AREA - 21.5 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 2018 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 841.33 ft above NAVD of 1988.
REMARKS - Flow regulated by Neversink Reservoir (station 01435900). Slight seasonal regulation caused by Beaverdam Pond on Red Brook. Water Years 2018-21: Records fair except those for estimated daily discharges, which are poor. Water Years 2022-23: Records fair except those for estimated daily discharges and those above 400 ft³/s, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,130 ft³/s, Apr. 7, 2022, gage height, 6.36 ft, from rating curve extended above 1,000 ft³/s; minimum discharge, 11 ft³/s, Aug. 23, 24, 25, 26, 2020; minimum gage height, 1.87 ft, Aug. 24, 2020.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: September 2018 to current year.
INSTRUMENTATION - Water-temperature recorder provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 22.0 °C, Aug. 24, 2020; minimum, 0.2 °C, on several days during winter periods.
