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LOCATION.--Lat 41°55'05.3", long 73°58'54.2" referenced to North American Datum of 1983, Ulster County, NY, Hydrologic Unit 02020007, on left bank at State Highway 9W bridge and 1.1 mi above mouth, at Rondout.
DRAINAGE AREA.--1,185 mi².
PERIOD OF RECORD.--Miscellaneous measurements--2008, 2011. March 2011 to March 2015 (discontinued).
GAGE.--Water-stage recorder and acoustic velocity meter. Datum of gage is 3.45 ft below NGVD of 1929.
REMARKS.--Flow at this site is affected by astronomical tides.
Water Years 2014-15: Records good.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 59,700 ft³/s, Aug. 28, 2011, gage height, 11.86 ft; maximum gage height, 13.42 ft, Oct. 30, 2012; minimum discharge not determined; minimum gage height, 0.02 ft, Feb. 26, 2012.
PERIOD OF DAILY RECORD1.--SUSPENDED-SEDIMENT DISCHARGE: March 2011 to March 2015 (discontinued).
REMARKS1.--Turbidity data are collected every 6 minutes using an in situ turbidity probe located at the automatic sampler intake tubing. Daily suspended-sediment load and concentration are derived from a regression equation relating turbidity to suspended-sediment concentration. A negative load indicates the net movement of suspended sediment was upstream for that day.
EXTREMES FOR PERIOD OF DAILY RECORD1.--SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily mean, 518 mg/L, Aug. 28, 2011; minimum daily mean, 1 mg/L, Nov. 26, 2013.
SUSPENDED-SEDIMENT DISCHARGE: Maximum daily, 70,700 tons, Aug. 28, 2011; minimum daily, -7.5 tons, July 21, 2013.
1 Water-Quality Records

Peak Flow and Stage Information

Gage PhotoStation image


Available Parameters Period of Record
2011-03-01  2015-03-30
2011-03-01  2015-03-30
2011-03-01  2015-03-30


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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.