Water

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• Lake Water Quality Monitoring

  The DEEP Water Monitoring Program conducts ambient monitoring and the related assessment of the State’s waters, including Connecticut's many lakes and ponds. In Connecticut, there are a total of 2,267 lakes and ponds greater than 10 acres in size. The Monitoring Program conducts annual monitoring on approximately 10-20 of these. The type and locations of monitoring during a given year is determined by a variety of factors including participation in regional and national studies as well as support requests from groups within DEEP.

• Cold Water Stream Habitat Map

  Cold Water Stream Habitat Map

• Flood Management

  DEEP's Flood Management

• Cyanobacteria Blooms

  Cyanobacteria, also known as blue-green algae, occur naturally in lakes and ponds throughout Connecticut.  These microscopic organisms often go unnoticed and cause no harm.  However, excessive nutrient pollution and climate change are causing waterbodies to experience more frequent nuisance cyanobacteria blooms that may produce and release toxins.  When cyanobacteria blooms release toxins, people and animals using the water body for recreation can have health effects.  It is important to note that not all algal blooms are harmful algae blooms (HABs), however it is not possible to determine the level of toxins in the water without a more detailed evaluation. Out of precaution it is best to avoid direct contact with water experiencing a bloom.  When in doubt, stay out!   

• Nonpoint Source Management Grant Program

  This page is about the CT 319 NPS funds

• Archive of Water Quality Standards Documents

  This archive contains copies of Water Quality Standards which were previously adopted in Connecticut.

• Triennial Review Process for Water Quality Standards

  Explanation of the Triennial Review Process for the Connecticut Water Quality Standards.

• Inland Wetlands and Watercourses Municipal Permitting

  Information about the municipal permitting process for activities proposed in inland wetlands and watercourses

• Inland Wetlands Citizen Information

  State of CT inland wetlands and watercourses citizen information.

• Training Materials - Segment 1

  Segment 1 Training material for municipal wetlands agencies

• Citizens Guide - Inland Wetlands Regulation

  Citizen's Guide To Participating in the Municipal Regulation Of Inland Wetlands and Watercourses

• MIW Training - Video 2

  Municipal Inland Wetlands Agency Training Video Series 2

• Long Island Sound Water Quality Monitoring FAQs

  Answers to commonly asked questions about the Long Island Sound Water Quality Monitoring Program.

• Fact Sheet for the Water Quality Standards and Classifications

  The Connecticut Water Quality Standards form the foundation of water quality programs in CT. This fact sheet provides a summary of water quality classification definitions and provides general information.

• Mill River Remedial Activities Fairfield CT