Water Quality Issues

The main source of water pollution in our communities is polluted stormwater runoff.

What is Stormwater Runoff?

When rain falls on hard surfaces, it washes pet waste, fertilizer, pesticides, ice melt, motor oil, driveway sealer, cigarette butts and more get washed into the storm drain on your street.

Storm drains usually lead directly to the nearest wetland, pond or stream with no treatment. Storm drains in our area do not lead to a sewer treatment plant or other advanced treatment system.

When pollutants are left on a street or sidewalk, or dumped into a storm drain, even if the storm drain is far away from waterways, that pollution is washed into the storm drain and carried to the nearest waterway.

Polluted stormwater runoff can cause problems for local drinking water sources, recreational activities like swimming, boating and fishing, and fish and wildlife. That’s why its important for residents and business people to understand how storm drains work and learn about the simple steps they can cake to prevent polluted stormwater runoff.

How Clean are the Waterways in My Community?

Several NSP communities conduct regular water testing with the help of volunteers in one or more of their watersheds. In other areas water quality data may be collected by nonprofit groups or the state Department of Environmental Protection from time to time.

See below for resources on water quality in your city or town:

2018-2019 Water Quality Reports for NSP Towns (Neponset Watershed only)

Sources of Water Quality Data for Other Communities and Watersheds