Water

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• Fish Tissue Contaminant Monitoring

  Monitoring of toxic contaminants in tissues of fish and invertebrates has been conducted by DEEP in partnership with the CT Department of Public Health (DPH) since the late 1970s. Efforts have historically included analysis of levels of mercury and polychlorinated biphenyls (PCBs). More recent work has sought to study new contaminants of emerging concern, such as per- and polyfluorinated alkyl substances (PFAS).

• Triennial Review of the Connecticut Water Quality Standards

  Topics under Consideration for Revision within the WQS Regulations 2025

• 2013 Proposed Water Quality Standards Regulations

  Previous (2013) proposed changes to the Connecticut Water Quality Standards.

• Watershed Based Plans

  explanation of 319 NPS watershed based plans

• Vernal Pools

  Provides a variety of online resources that review vernal pool ecology.

• MIW Training - Video 3

  Municipal Inland Wetlands Agency Training Video Series 3

• Long Island Sound Water Quality and Hypoxia Monitoring Program Overview

  The CT DEEP Water Monitoring Program, on behalf of the Long Island Sound Study estuary program, performs an intensive year-round water quality monitoring program on Long Island Sound. The data collected are used to understand the current conditions and changes in the water quality of the Sound.

• LIS Hypoxia and Nitrogen Reduction Efforts

• Non Point Source Management Success Stories