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Connecticut River

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Connecticut River

Monitoring Group
Get hooked on the Data

  • A- 2023

    The Connecticut River received a A- (90%), a good grade. This segment of the river receives good or very good grades for all indicators other than a D+ (68%) for water clarity in 2023.

      Dissolved Oxygen
      Water Clarity
      Chlorophyll a
      Seaweeds
      Oxygen Saturation

  • 2017 2018 2019 2020 2021 2022 2023
    10 
    in    		 8 
    in    		 16 
    in    		 13 
    in    		 23 
    in    		 15 
    in    		 18 
    in
    N/A
    B+
    B+
    B+
    B
    N/A
    A-
A
B
C
D
F
N/A
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