USGS Water-Year Summary for Site 01355475

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

01355475 MOHAWK RIVER AT REXFORD, NY

LOCATION - Lat 42°51'04.0", long 73°53'14.1" referenced to North American Datum of 1983, Saratoga County, NY, Hydrologic Unit 02020004, on left bank 100 ft downstream from bridge on State Highway 146 and 0.2 mi south of Rexford.

DRAINAGE AREA - 3,360 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 2014 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).

REMARKS - Considerable regulation of stage by Lock 8 on the Erie (Barge) Canal about 6.6 mi upstream and Vischer Ferry Dam hydroelectric facility about 4.1 mi downstream.
Water Years 2014-20: Records fair. Water Years 2021-23: Records good.

EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 19.76 ft, Feb. 22, 2018 (ice jam); minimum gage height, 7.77 ft, Dec. 31, 2017 (result of freezeup).

WATER-QUALITY RECORDS

PERIOD OF RECORD - April 2019 to current year.

PERIOD OF DAILY RECORD - 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.

COOPERATION - Maintained by the Hudson River Environmental Conditions Observing System in cooperation with the New York State Department of Environmental Conservation.

INSTRUMENTATION - A multi-parameter water-quality sonde measures water temperature, specific conductance, pH, dissolved oxygen, and turbidity at 15-minute intervals since April 2019.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 29.8°C, June 22, July 10, 2020; minimum, 0°C, on many days.
SPECIFIC CONDUCTANCE: Maximum, 721 uS/cm @ 25°C, Feb. 17, 2021; minimum, 158 uS/cm @ 25°C, Nov. 2, 2019.
pH: Maximum, 9.2, July 8, 2020; minimum, 7.3, May 27, 28, 2019.
DISSOLVED OXYGEN: Maximum, 18.1 mg/L, July 9, 2020; minimum, 4.2 mg/L, July 15, 2020, and Aug. 21, 2020.
TURBIDITY: Maximum, 702 FNU, Dec. 26, 2020; minimum, 0.1 FNU, Aug. 15 to 20, and 23, 2022.