MS4 Stormwater

Wilton Stormwater Program

Wilton riverscapeThe purpose of the EPA’s Municipal Separate Storm Sewer System (MS4) Program is to mitigate the effects of storm water pollution. Rainwater that falls on paved streets, lawns, parking lots, and sidewalks becomes polluted stormwater. The more impervious the surface, the more stormwater runoff and impact to receiving waterbodies. Typical pollutants in stormwater are trash, oil, fertilizers, sediment, sand, and bacteria. In fact, 40% of known pollution to the nation’s waters is caused by stormwater.

Wilton must comply with the requirements of MS4, and we have submitted a Notice of Intent (NOI) to comply. We must submit a written Storm Water Management Program by July 1, 2019.

 The presentation below summarizes Wilton’s stormwater program plans and was approved at the Select Board meeting on October 22, 2018.

Wilton Stormwater Program presentation
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