PROVISIONAL DATA SUBJECT TO REVISION
Click to hidestation-specific text
The 15-minute precipitation data for this
station are temporary and will only be displayed for 120 days.
Although the instrumentation is calibrated at least once/year, the
temporary classification means that documented routine inspections and
other quality assurance measures are not performed that would make the
data acceptable for archival, retrieval, or future use in general
scientific or interpretive studies.
Site Information
Funding for this site is provided by:
Site Information
LOCATION.--Lat 40°43'17.5", long
74°00'56.2" referenced to North American Datum of
1983, New York County, NY, Hydrologic Unit 02030101, on left
bank at Pier 25, 1.3 mi upstream of mouth, 9.8 mi downstream of
George Washington Bridge on US Highway 95, and 12.1 mi
downstream of Harlem River in New York, New York.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: July 2019 to current year.
SPECIFIC CONDUCTANCE: July 2019 to current year.
SALINITY: July 2019 to current year.
pH: July 2019 to current year.
DISSOLVED OXYGEN: July 2019 to current year.
TURBIDITY: July 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 July 2019. Salinity record computed from specific-conductance readings.
COOPERATION1.--Maintained by the Hudson River Environmental Conditions Observing System in cooperation with the Hudson River Park Trust.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 26.7 °C, July 17, 2023; minimum, 0.5 °C, Feb. 21, 2021.
SPECIFIC CONDUCTANCE: Maximum, 44,700 uS/cm @ 25 °C, Aug. 11, 2022; minimum, 1,895 uS/cm @ 25 °C, Dec. 20, 2023.
SALINITY: Maximum, 28.9 psu, Aug. 11, 2022; minimum, 1.0 psu, Dec. 20, 2023.
pH: Maximum, 8.3, Nov. 8, 16, 2019; minimum, 7.4, Aug. 2, 4, 5, 6, 2019.
DISSOLVED OXYGEN: Maximum, 13.4 mg/L, Dec. 19, 2019, Feb. 8, 2022; minimum, 3.5 mg/L, Aug. 31, 2022.
TURBIDITY: Maximum, 61.5 FNU, Feb. 5, 2021; minimum, <0.3 FNU, Feb. 28, 2021. [<, actual value is known to be less than the value shown]
1 Water-Quality Records
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: July 2019 to current year.
SPECIFIC CONDUCTANCE: July 2019 to current year.
SALINITY: July 2019 to current year.
pH: July 2019 to current year.
DISSOLVED OXYGEN: July 2019 to current year.
TURBIDITY: July 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 July 2019. Salinity record computed from specific-conductance readings.
COOPERATION1.--Maintained by the Hudson River Environmental Conditions Observing System in cooperation with the Hudson River Park Trust.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 26.7 °C, July 17, 2023; minimum, 0.5 °C, Feb. 21, 2021.
SPECIFIC CONDUCTANCE: Maximum, 44,700 uS/cm @ 25 °C, Aug. 11, 2022; minimum, 1,895 uS/cm @ 25 °C, Dec. 20, 2023.
SALINITY: Maximum, 28.9 psu, Aug. 11, 2022; minimum, 1.0 psu, Dec. 20, 2023.
pH: Maximum, 8.3, Nov. 8, 16, 2019; minimum, 7.4, Aug. 2, 4, 5, 6, 2019.
DISSOLVED OXYGEN: Maximum, 13.4 mg/L, Dec. 19, 2019, Feb. 8, 2022; minimum, 3.5 mg/L, Aug. 31, 2022.
TURBIDITY: Maximum, 61.5 FNU, Feb. 5, 2021; minimum, <0.3 FNU, Feb. 28, 2021. [<, actual value is known to be less than the value shown]
1 Water-Quality Records
WaterAlert – get an
email or text (SMS) alert based on your chosen threshold.
Station imageSummary of all available data for this site
Instantaneous-data availability statement
![Graph of Temperature, water, degrees Celsius, [HRECOS]](https://nadww02.cr.usgs.gov/nwisweb/data/img/USGS.01376520.243826.00010..20250323.20250330..0..gif)
![Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [HRECOS]](https://nadww02.cr.usgs.gov/nwisweb/data/img/USGS.01376520.246500.00095..20250323.20250330..0..gif)
![Graph of Dissolved oxygen, water, unfiltered, milligrams per liter, [HRECOS]](https://nadww02.cr.usgs.gov/nwisweb/data/img/USGS.01376520.243822.00300..20250323.20250330..0..gif)
![Graph of pH, water, unfiltered, field, standard units, [HRECOS]](https://nadww02.cr.usgs.gov/nwisweb/data/img/USGS.01376520.243821.00400..20250323.20250330..0..gif)
