USGS 01355475 MOHAWK RIVER AT REXFORD NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
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.
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).
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.

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, 29.8°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.
1 Water-Quality Records
> Rating Information
> Additional Site Information

Peak Flow and Stage Information

Mohawk River Ice Jam Monitoring

Radar elevation may correspond to top of ice during winter periods.

Gage PhotoStation image

 

This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2019-04-12  2024-03-29
2014-06-27  2024-03-29
2023-11-30  2024-03-29
2019-04-12  2024-03-29
2019-04-12  2024-03-29
2023-11-30  2024-03-29
2019-04-12  2024-03-29
2023-11-30  2024-03-29
2023-11-30  2024-03-29
2023-11-30  2024-03-29
2023-11-30  2024-03-29
2023-11-30  2024-03-29
2023-11-30  2024-03-29
2019-10-04  2024-03-29
2023-11-30  2024-03-29







 (7)
 

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Summary of all available data for this site
Instantaneous-data availability statement


Temperature, water, degrees Celsius, [HRECOS]

Most recent instantaneous value: 3.3 03-29-2024   07:40 EST
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Gage height, feet

Most recent instantaneous value: 11.80 03-29-2024   07:50 EST
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Gage height, feet, [backup from radar]

Most recent instantaneous value: 11.81 03-29-2024   07:50 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius, [HRECOS]

Most recent instantaneous value: 284 03-29-2024   07:40 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter, [HRECOS]

Most recent instantaneous value: 13.2 03-29-2024   07:40 EST
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Dissolved oxygen, water, unfiltered, percent of saturation, [HRECOS]

Most recent instantaneous value: 99 03-29-2024   07:40 EST
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pH, water, unfiltered, field, standard units, [HRECOS]

Most recent instantaneous value: 8.1 03-29-2024   07:40 EST
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Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE), [HRECOS]

Most recent instantaneous value: 12.81 03-29-2024   07:40 EST
Graph of  Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE), [HRECOS]

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Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), [HRECOS]

Most recent instantaneous value: 0.24 03-29-2024   07:40 EST
Graph of  Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU), [HRECOS]

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Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [HRECOS]

Most recent instantaneous value: 0.72 03-29-2024   07:40 EST
Graph of  Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll, [HRECOS]

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Phycocyanin fluorescence (fPC), water, in situ, concentration estimated from reference material, micrograms per liter as phycocyanin, [HRECOS]
 
-- Data temporarily unavailable for the time period specified --


Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU), [HRECOS]

Most recent instantaneous value: 0.29 03-29-2024   07:40 EST
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Dissolved organic matter relative fluorescence (fDOM), water, in situ, relative fluorescence units (RFU), [HRECOS]

Most recent instantaneous value: 6.26 03-29-2024   07:40 EST
Graph of  Dissolved organic matter relative fluorescence (fDOM), water, in situ, relative fluorescence units (RFU), [HRECOS]

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [HRECOS]

Most recent instantaneous value: 17.7 03-29-2024   07:40 EST
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]

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Difference between observed and predicted water surface elevation, feet

Most recent instantaneous value: 0.21 03-29-2024   07:45 EST
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