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ICE EFFECTS ON STREAMFLOW - During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.
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USGS 01125100 FRENCH RIVER AT NORTH GROSVENORDALE, CT

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the Connecticut Department of Energy & Environmental Protection.
This station managed by the East Hartford CT Field Office.

Available Parameters Available Period
  
2015-06-09  2021-03-08
2000-10-01  2021-03-08
2007-10-01  2021-03-08
2015-06-09  2021-03-08
2015-06-09  2021-03-08
2017-06-22  2021-03-08
2017-06-22  2021-03-08
2020-04-29  2021-03-08
2020-02-22  2021-03-08
2016-07-01  2021-03-08







 (7)
 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 2.7 03-08-2021   20:45 EST
Graph of  Temperature, water, degrees Celsius

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Discharge, cubic feet per second

Most recent instantaneous value: 172 03-08-2021   21:15 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Mar 8 based on 19 water years of record more
Min
(2015)
25th
percen-
tile
Most Recent
Instantaneous
Value Mar 8
Median Mean 75th
percen-
tile
Max
(2011)
84.3 148 172 217 279 341 802


Gage height, feet

Most recent instantaneous value: 7.39 03-08-2021   21:15 EST
Graph of  Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 279 03-08-2021   20:45 EST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 13.9 03-08-2021   20:45 EST
Graph of  Dissolved oxygen, water, unfiltered, milligrams per liter

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Dissolved oxygen, water, unfiltered, percent of saturation

Most recent instantaneous value: 102 03-08-2021   20:45 EST
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.0 03-08-2021   20:45 EST
Graph of  pH, water, unfiltered, field, standard units

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

Most recent instantaneous value: 0.48 03-08-2021   20:45 EST
Graph of  Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)

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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)

Most recent instantaneous value: 1.4 03-08-2021   20:45 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)

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Photosynthetically active radiation (average flux density on a horizontal surface during measurement interval), micromoles of photons per square meter per second

Most recent instantaneous value: 0.0 03-08-2021   21:15 EST
Graph of  Photosynthetically active radiation (average flux density on a horizontal surface during measurement interval), micromoles of photons per square meter per second

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