Connecticut Department of Energy & Environmental Protection

Water

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  • Ambient Fish Community Monitoring

    Fish are an important component of aquatic life in rivers and streams in Connecticut. The DEEP Water Monitoring group therefore uses fish as one of three biological communities to evaluate the health of waterbodies in Connecticut. (The other two biological communities include benthic macroinvertebrates and diatoms.) Fish have the ability to move within a reach to find better water quality, but they can only do so if there is adequate water present and no barriers to their movement such as dams. Fish are therefore good ‘indicators’ of problems related to water quantity and habitat connectivity. Fish are more sensitive to changes in the amount of water in a stream than other biological communities such as benthic macroinvertebrates, and a fish community with very limited fish can often be a signal of flow-related water quality impairments.

  • Beach Monitoring

    The CT DEEP Water Monitoring and Assessment Unit conducts weekly bathing water sampling at 22 state-owned and managed swimming areas.

  • Flood Management

    DEEP's Flood Management

  • Water Diversion Program

    Connecticut Water Diversion Program Information and Reporting Forms

  • State Dams and Dam Safety

  • Connecticut's Water Resources

    Connecticut's Water Resources include ground water, lakes & ponds, coastal/Long Island Sound, rivers & streams and wetlands

  • Water Diversion Reporting

    Information on the reporting of water diversions.

  • Water Diversion Registrations and Permits

    The Registration of water diversions occurred in 1982 and 1983. It was required by the Water Diversion Policy Act, in section 22a-368 of the Connecticut General Statutes.

  • Riffle Bioassessment by Volunteers (RBV) Program

    The Riffle Bioassessment by Volunteers program (RBV) is a statewide volunteer water quality monitoring program coordinated by the CT DEEP Bureau of Water Protection & Land Reuse. Each fall RBV volunteers participate in a ‘treasure hunt’ to find Connecticut’s healthiest streams. To accomplish this, RBV volunteers are trained to collect ‘macroinvertebrates,’ or ‘river bugs' from their local rivers and streams. Depending on the types of macroinvertebrates that volunteers find in a stream, the CT DEEP can assess it as a healthy stream.