DEEP is excited to be getting back to our new normal consistent with the direction of Governor Lamont and as a result of the rapidly improving COVID-19 situation in Connecticut. Starting no later than June 1, all customer facing services will resume normal business operations. For detailed information for what this means at DEEP and for the public we serve, visit our "New Normal" website: DEEP New Normal Information

2004 Connecticut Stormwater Quality Manual

The Connecticut Stormwater Quality Manual provides guidance on the measures necessary to protect the waters of the State of Connecticut from the adverse impacts of post-construction stormwater runoff. This manual focuses on site planning, source control, and stormwater treatment practices and is intended for use as a planning tool and design guidance document by the regulated and regulatory communities involved in stormwater quality management.

Errata Sheet for the Connecticut Stormwater Quality Manual

The manual can be viewed in two ways: The complete manual or individual chapters.

Stormwater Quality Worksheet (Word) (PDF)

This worksheet is to be used in conjunction with the Connecticut Stormwater Quality Manual for any new land development. It is designed to help the regulated community and regulatory agencies work through the recommendations provided in the 2004 Connecticut Stormwater Quality Manual. It is not currently required to be submitted with any permit applications submitted to the Connecticut Department of Energy and Environmental Protection (DEEP).

Stormwater Quality Manual - View Complete Stormwater Manual 

Stormwater Quality Manual - View By Chapter

Table of Contents (PDF)

Stormwater Index

Content Last Updated February 2020