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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.
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USGS Water-Year Summary 2024
01362342 HOLLOW TREE BROOK AT LANESVILLE, NY
LOCATION - Lat 42°08'32", long 74°15'54" referenced to North American Datum of 1983, Greene County, NY, Hydrologic Unit 02020006, on left bank downstream from bridge on Diamond Notch Road, about 1.0 mi upstream from mouth, and about 1.0 mi north of Lanesville.
DRAINAGE AREA - 1.95 mi².
REVISIONS HISTORY - Turbidity data for the period Oct. 20, 2020 to Dec. 24, 2020, were removed on Jan. 30, 2024, based on the publication criteria.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Occasional miscellaneous discharge measurements, water years 1985-86, 1988-94. October 1997 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,476.46 ft above NAVD of 1988.
REMARKS - Water Years 2014-23: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 487 ft³/s, Aug. 28, 2011, gage height, 5.89 ft, from rating curve extended above 230 ft³/s on basis of step-backwater analysis; minimum, no flow Sept. 18, 19, 2001, as a result of temporary drainage of gage pool by local fire department; minimum gage height, 0.55 ft, Sept. 18, 2001.
WATER-QUALITY RECORDS
PERIOD OF RECORD - February 2017 to October 2020, March 2021 to current year.
PERIOD OF DAILY RECORD - TURBIDITY: February 2017 to October 2020, March 2021 to current year.
COOPERATION - In cooperation with the New York City Department of Environmental Protection.
INSTRUMENTATION - An optical turbidity sensor provides readings on a 15-minute interval since February 2017.
EXTREMES FOR PERIOD OF DAILY RECORD - TURBIDITY: Maximum, 801 FNU, May 15, 2018; minimum, <0.2 FNU, on many days. [<, actual value is known to be less than the value shown]
