Polluted stormwater runoff can have many adverse effects on plants, fish, animals, and people.
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Stormwater is the water that runs off of the land surface when it rains or snow melts. It enters the Town's storm drain system and flows directly to local lakes, streams and wetlands. Stormwater runoff from undeveloped land is typically low since most rain or snow melt infiltrates into the ground or is lost to evaporation. Additional runoff from developed areas is created from impervious surfaces like streets, parking lots, and rooftops that prevent stormwater from naturally soaking into the ground.
Stormwater from developed areas typically contains a number of pollutants, such as oil and grease from roadways and parking lots, pesticides and fertilizers from lawns, sediment from construction sites, sand and dirt from roadway maintenance practices, and carelessly discarded trash such as cigarette butts, wrappers, plastic bags, and plastic bottles. When these pollutants enter water bodies, they can contaminate drinking water supplies, hinder recreation activities, and harm aquatic and other wildlife habitats.
In addition to washing pollutants into our surface waters, improperly managed stormwater runoff can result in soil erosion and flooding.