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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 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT

PROVISIONAL DATA SUBJECT TO REVISION

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Available Parameters Available Period
  
2010-09-09  2021-12-02
2008-12-05  2021-12-02
2008-12-04  2021-12-02
2011-10-01  2021-12-02
2017-04-27  2021-12-02
2018-08-28  2021-12-02
2010-09-27  2021-12-02
2010-09-15  2021-12-02
2008-12-06  2021-12-01
2018-12-03  2021-12-02
2011-11-30  2021-12-02







 (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: 3.9 12-02-2021   14:15 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 144 12-02-2021   14:15 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 13.1 12-02-2021   14:15 EST
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.3 12-02-2021   14:15 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)

Most recent instantaneous value: 34.23 12-02-2021   14:15 EST
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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: 1.9 12-02-2021   14:15 EST
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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, Nitrate sensor

Most recent instantaneous value: 0.39 12-02-2021   14:15 EST
Graph of  Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen

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