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USGS 0135749950 MOHAWK RIVER DIVERSION TO POWER PLANT AT COHOES NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 42°47'08.5", long 73°42'37.5" referenced to North American Datum of 1983, Albany County, NY, Hydrologic Unit 02020004, on right bank 250ft upstream from the School Street powerplant intake in Cohoes, and 0.9 miles downstream of the beginning of the diversion.
DRAINAGE AREA.--1.67 mi².  
PERIOD OF RECORD1.--February 2021 to current year.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: February 2021 to current year.
SPECIFIC CONDUCTANCE: February 2021 to current year.
pH: February 2021 to current year.
DISSOLVED OXYGEN: February 2021 to current year.
TURBIDITY: February 2021 to current year.
CHLOROPHYLL FLUORESCENCE: February 2021 to current year. 
PHYCOCYANIN FLUORESCENCE: February 2021 to current year.
DISSOLVED ORGANIC MATTER FLUORESCENCE: February 2021 to current year.
INSTRUMENTATION1.--A continuous water-quality monitor with water temperature, specific conductance, pH, dissolved oxygen, turbidity, chlorophyll fluorescence, phycocyanin fluorescence, and dissolved organic carbon fluorescence provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF RECORD1.--WATER TEMPERATURE: Maximum, 28.8°C, Aug. 8, 2022; minimum -0.2°C, Jan. 14, Mar. 2, 7, 2025.
SPECIFIC CONDUCTANCE: Maximum, 648 uS/cm @ 25°C, Feb. 20, 2025; minimum, 180 uS/cm @ 25°C, Dec. 20, 2023.
pH: Maximum, 9.3, May 29, 2023; minimum, 7.2, Aug. 21, 22, 2022.
DISSOLVED OXYGEN: Maximum, 15.9 mg/L, Feb. 24, Dec. 25, 2022; minimum, 2.3 mg/L Aug. 21, 2022. 
TURBIDITY: Maximum, 656 FNU, Apr. 9, 2022, minimum, <0.3 FNU, on many days. [<, actual value is known to be less than the value shown]
CHLOROPHYLL FLUORESCENCE: Maximum, 47.19 ug/L, 11.73 RFU, Jan. 26, 2024; minimum 0.01 ug/L, June 22, July 17, 2023, 0.00 RFU, Feb. 22, 23, 24, 2024
PHYCOCYANIN FLUORESCENCE: Maximum, 3.77 ug/L, 3.92 RFU, Jan. 27, 2024; minimum, <0.0 ug/L, <0.0 RFU, on many days. [<, actual value is known to be less than the value shown].
DISSOLVED ORGANIC CARBON FLUORESCENCE: Maximum, 96.70 QSE, 32.24 RFU, Oct. 19, 2021; minimum, 14.31 QSE, 4.78 RFU, Apr. 7, 2023.

1 Water-Quality Records
> Rating Information
This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2021-02-26  2026-03-31
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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.