DEEP: Connecticut Stream Flow Standards

Connecticut Stream Flow Standards and Regulations

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In 2005 the Connecticut General Assembly passed Public Act 05-142 (CGS Section 26-141a and b) which required the Department of Energy and Environmental Protection (DEEP) to work with the Department of Public Health and stakeholders to update standards for maintaining minimum flows in rivers and streams. The act requires these standards to balance the various uses of water by providing for river and stream ecology, wildlife and recreation while providing for the needs and requirements of public health, flood control, industry, public utilities, water supply, public safety, agriculture and other lawful uses of water.

Extensive effort by DEEP and numerous stakeholders and work groups culminated in submission of the Stream Flow Standards and Regulations for consideration by the Legislative Regulations Review Committee (LRRC) on November 29, 2011.  The regulations were approved with technical corrections by the LRRC on that date.  The technical corrections were made and on December 12, 2011, the Stream Flow Standards and Regulations were filed with the Secretary of States Office.

The process of classifying the streams and rivers of the State began with the Southeast Coastal, Pawcatuck and Thames Major basins in the fall of 2013.

Current Status of Stream Flow Regulations and Implementation

DEEP finalizes River and Stream Flow Classification Process for the Southeast Coastal, Pawcatuck, and Thames Major basins (NEW) 10/7/14

More specific additional information may be found at:

Stream Flow Regulations

Stream Flow Classification Process (including maps)

Frequently Asked Questions

History of Regulation Development

Stream Flow Data Links and Background Documents

Contact Information:

If you have questions or for further information on the program, please contact us at:

Connecticut Department of Energy and Environmental Protection
Bureau of Water Protection and Land Reuse
Planning and Standards Division
79 Elm Street
Hartford, CT 06106-5127

Phone: (860) 424-3020
Fax: (860) 424-4055

Content Last Updated on October 7, 2014