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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.
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USGS Water-Year Summary 2024
01376307 HUDSON RIVER AT WATER GRANT STREET AT YONKERS NY
LOCATION - Lat 40°56'10.5", long 73°54'15.5" referenced to North American Datum of 1983, Westchester County, NY, Hydrologic Unit 02030101, on left bank 500ft upstream of Water Grant Street, 4.2 mi upstream of Halem River and 6.4 mil upstream of the George Washington Bridge on Interstate 95, in Yonkers, New York.
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 2019 to current year (non-winter seasons only).
PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 2019 to current year (non-winter seasons only).
SPECIFIC CONDUCTANCE: May 2019 to current year (non-winter seasons only).
SALINITY: May 2019 to current year (non-winter seasons only).
pH: May 2019 to current year (non-winter seasons only).
DISSOLVED OXYGEN: May 2019 to current year (non-winter seasons only).
TURBIDITY: May 2019 to current year (non-winter seasons only).
SPECIFIC CONDUCTANCE: May 2019 to current year (non-winter seasons only).
SALINITY: May 2019 to current year (non-winter seasons only).
pH: May 2019 to current year (non-winter seasons only).
DISSOLVED OXYGEN: May 2019 to current year (non-winter seasons only).
TURBIDITY: May 2019 to current year (non-winter seasons only).
COOPERATION - Maintained by the Hudson River Environmental Conditions Observing System in cooperation with Sarah Lawrence College.
INSTRUMENTATION - A multi-parameter water-quality sonde measures water temperature, specific conductance, pH, dissolved oxygen, and turbidity at 15-minute intervals since May 2019. Salinity record computed from specific-conductance readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 30.0°C, July 21, 2019; minimum, 4.4°C, Dec. 4, 2019.
SPECIFIC CONDUCTANCE: Maximum, 32,500 uS/cm @ 25°C, Oct. 3, 2019; minimum, 253 uS/cm @ 25°C, May 21, 2019.
SALINITY: Maximum, 20.3 psu, Oct. 3, 2019; minimum, 0.1 psu, May 21, 2019.
pH: Maximum, 9.0, Aug. 23, 2022; minimum, 6.8, on several days May 2019.
DISSOLVED OXYGEN: Maximum, 15.4 mg/L, Aug. 21, 2022; minimum, 3.6 mg/L, Sept. 12, 2022.
TURBIDITY: Maximum, 176 FNU, Apr. 19, 2022; minimum, 1.3 FNU, Oct. 19, 2022.
SPECIFIC CONDUCTANCE: Maximum, 32,500 uS/cm @ 25°C, Oct. 3, 2019; minimum, 253 uS/cm @ 25°C, May 21, 2019.
SALINITY: Maximum, 20.3 psu, Oct. 3, 2019; minimum, 0.1 psu, May 21, 2019.
pH: Maximum, 9.0, Aug. 23, 2022; minimum, 6.8, on several days May 2019.
DISSOLVED OXYGEN: Maximum, 15.4 mg/L, Aug. 21, 2022; minimum, 3.6 mg/L, Sept. 12, 2022.
TURBIDITY: Maximum, 176 FNU, Apr. 19, 2022; minimum, 1.3 FNU, Oct. 19, 2022.
