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Stormwater Management

The Connecticut Department of Energy and Environmental Protection (CTDEEP) General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems more commonly known as the “MS4” Permit was revised in 2016 and becomes effective July 1, 2017. As a result of the revised Permit the Town will become subject to the new Permit.

The goal of the MS4 permit program is to improve overall water quality by reducing the amount and potential for pollutants to enter our waterways.

A component of the MS4 Permit is the Permittee (the Town of Mansfield) to prepare a Stormwater Management Plan that identifies measurable goals in each of the following six control measures: 1) Public Education and Outreach; 2) Public Participation and Involvement; 3) Illicit Discharge Detection and Elimination; 4) Construction Site Runoff Control; 5) Post-Construction Runoff Control; and 6) Pollution Prevention/Good Housekeeping.

What is Stormwater?

Stormwater is water from precipitation that flows across the ground and pavement when it rains or when snow and ice melt. The water seeps into the ground, drains to streams, or to the Town’s MS4. The Town’s MS4 are those drains (catch basins) that can be seen along the roadway. Because Stormwater travels across the ground it can come into contact with debris, pet waste, fertilizers, chemicals, dirt and other pollutants which then drain to the streams, ponds, lakes or even sources for drinking water.

What is the Town Doing?

Your community is developing and implementing a Stormwater Management Plan in accordance with the CTDEEP General Permit. The Plan addresses water pollution from construction, new development, illegal dumping to the storm sewer system, pollution prevention and good housekeeping practices in municipal operations.

Stormwater Management Plan

The DRAFT Stormwater Management Plan  was prepared by the Town of Mansfield Engineering Division and is available for review and comment until May 31, 2017. Your participation is encouraged to assist the Town in meeting the Public Participation and Involvement Control Measure. A copy of the General Permit

If you have any questions or comments regarding this plan, please contact Derek Dilaj, Asst. Town Engineer at (860) 429-3334 or via e-mail at dpw@mansfielct.org.

Annual Reports

Beginning in 2018 the Town will develop, draft, and submit Annual Reports containing progress the Town is making in meeting goals identified in the Stormwater Management Plan.  The Annual Reports will be made available for Public Comment prior to submission. 

Additional Information

EPA National Pollutant Discharge Elimination System (NPDES )




Septic Systems