USGS 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT

PROVISIONAL DATA SUBJECT TO REVISION

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Available Parameters Available Period
  
2010-09-09  2026-02-20
2008-12-05  2026-02-20
2008-12-04  2026-02-20
2011-10-01  2026-02-20
2017-04-27  2026-02-20
2018-08-28  2026-02-20
2010-09-27  2026-02-20
2010-09-15  2026-02-20
2008-12-06  2026-02-18
2023-02-21  2026-02-20
2011-11-30  2026-02-20
2023-02-21  2026-02-20







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius
Most recent instantaneous value: -0.0 02-20-2026   06:15 EST
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Discharge, cubic feet per second
Most recent instantaneous value: 18400 02-20-2026   06:45 EST
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Gage height, feet
Most recent instantaneous value: 1.91 02-20-2026   06:55 EST
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 220 02-20-2026   06:15 EST
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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 13.8 02-20-2026   06:15 EST
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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.5 02-20-2026   06:15 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: 22.46 02-20-2026   06:15 EST
Graph of Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)

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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: 1.8 02-20-2026   06:15 EST
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Discharge, tidally filtered, cubic feet per second
Most recent instantaneous value: 9070 02-18-2026   19:00 EST
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Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, pounds of nitrogen per day, Nitrate sensor
Most recent instantaneous value: 20400 02-20-2026   06:15 EST
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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, Nitrate sensor
Most recent instantaneous value: 0.62 02-20-2026   06:15 EST
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Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, estimated by regression equation, milligrams per liter as nitrogen
Most recent instantaneous value: 1.0 02-20-2026   06:15 EST
Graph of Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, estimated by regression equation, milligrams per liter as nitrogen

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