LOCATION.--Lat 42°49'41.37", long
73°59'25.34" referenced to North American Datum of
1983, Schenectady County, NY, Hydrologic Unit 02020004, on
right bank 330 ft downstream of Lock 8 on the Erie (Barge)
Canal, 2.9 mi west of Schenectady.
DRAINAGE AREA.--3,270 mi².
PERIOD OF RECORD.--December 2011 to current year (gage
heights only).
GAGE.--Water-stage recorder. Datum of gage is 199.46 ft
above NAVD of 1988 and 200.00 ft above NGVD of 1929 (VERTCON).
Prior to Oct. 1, 2013, datum of gage was 199.61 ft above NGVD
of 1929, not 200.00 ft above NGVD of 1929 as previously
published.
REMARKS.--Considerable regulation of stage by Lock 8 on
the Erie (Barge) Canal about 330 ft upstream and Vischer Ferry
Dam hydroelectric facility about 10.7 mi downstream.
Water Years 2014-22: Records fair.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height,
29.37 ft, Feb. 22, 2018 (ice jam); minimum gage height, 8.63
ft, Nov. 8, 2023.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Aug. 29,
2011, reached a stage of 33.02 ft, from floodmarks in
downstream cabin of Lock 8 about 350 ft upstream, from
information provided by New York State Canal Corporation.
PERIOD OF RECORD1.--April 2019 to current
year.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE:
April 2019 to current year.
SPECIFIC CONDUCTANCE: April 2019 to current year.
pH: April 2019 to current year.
DISSOLVED OXYGEN: April 2019 to current year.
TURBIDITY: April 2019 to current year.
INSTRUMENTATION1.--A multi-parameter
water-quality sonde measures water temperature, specific
conductance, pH, dissolved oxygen, and turbidity at 15-minute
intervals since April 2019.
COOPERATION1.--Maintained by the Hudson River
Environmental Conditions Observing System in cooperation with
the New York State Department of Environmental
Conservation.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER
TEMPERATURE: Maximum, 29.1°C, June 23, July 13, 2020; minimum,
-0.2°C, Dec. 17 - 25, 2020, Jan. 9, 21, 23, Mar. 8, 9, 10,
2021.
SPECIFIC CONDUCTANCE: Maximum, 606 uS/cm @ 25°C, Mar. 1, 2021;
minimum, 145 uS/cm @ 25°C, Nov. 2, 2019.
pH: Maximum, 9.0, June 4, July 10, 14, Aug. 25, 26, 2020;
minimum, 7.5, July 7, 2021.
DISSOLVED OXYGEN: Maximum, 15.6 mg/L, Feb. 21, 2020; minimum,
5.2 mg/L, Aug. 25, 2020.
TURBIDITY: Maximum, 176 FNU, June 22, 2019; minimum, <0.3
FNU, on many days. [<, actual value is known to be less than
the value shown]
1 Water-Quality Records
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Station image![Graph of Temperature, water, degrees Celsius, [HRECOS]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.243520.00010..20241114.20241121..0..gif)
![Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [HRECOS]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.243518.00095..20241114.20241121..0..gif)
![Graph of Dissolved oxygen, water, unfiltered, milligrams per liter, [HRECOS]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.243496.00300..20241114.20241121..0..gif)
![Graph of Dissolved oxygen, water, unfiltered, percent of saturation, [HRECOS]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.243497.00301..20241114.20241121..0..gif)
![Graph of pH, water, unfiltered, field, standard units, [HRECOS]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.243524.00400..20241114.20241121..0..gif)
![Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [HRECOS EXO]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.01354330.338819.63680..20241114.20241121..0..gif)
