This station is operated in cooperation
NYS Department of Environmental
Lat 41°23'10", long 73°57'20"
referenced to North American Datum of 1927, Orange County, NY,
Hydrologic Unit 02020008, on right bank at South Dock at West Point.
Water-quality sampling site at elevation station.
PERIOD OF RECORD.--
October 1991 to February 2012, June to
September 2013. Records for June 1989 to September 1991 are unpublished
and available in files of the Geological Survey.
Water-stage recorder. Datum of gage is NGVD of
Prior to October 2002 published as maximum, minimum,
and mean elevation. Elevations are not corrected for changes in water
density. Blanks in tables are the result of only one high or low tide
during a day or interruption of record. Satellite and telephone
elevation and water-quality telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--
Maximum elevation, 7.65 ft, Aug.
28, 2011; minimum elevation, -4.26 ft, Mar. 14, 1993.
EXTREMES OUTSIDE PERIOD OF RECORD.--
Flood of Oct. 29, 2012,
reached an elevation of 9.60 ft, from floodmark.
PERIOD OF DAILY RECORD1.--
October 1991 to February 2012, June to September 2013. Records for
February 1990 to September 1991 are unpublished and available in files
of the Geological Survey.
WATER TEMPERATURE: October 1991 to February 2012, June to September
2013. Records for February 1990 to September 1991 are unpublished and
available in files of the Geological Survey.
pH: June to September 2013.
DISSOLVED OXYGEN: June to September 2013.
TURBIDITY: June to September 2013.
A continuous water-quality monitor
with water temperature, specific conductance, pH, dissolved oxygen and
turbidity provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD1.--
CONDUCTANCE: Maximum, 12,600 uS/cm, Sept. 23, 1995; minimum, 102 uS/cm,
May 30, 1996.
WATER TEMPERATURE: Prior to Oct. 1, 2007--Maximum, 29.0 °C, Aug. 12,
13, 14, 2005; minimum, 0.0 °C on many days during winter periods,
except 1998, 2002.
WATER TEMPERATURE: After Oct. 1, 2007--Maximum, 28.2 °C, July 24, 27,
2010; minimum, -0.2 °C on many days during 2009 winter period.
1 Water-Quality Records
Derived from NY Annual Water-Data Report 2013
Peak Flow and Stage Information
Hudson River Salt-Front information.