Phase IIThe United States Environmental Protection Agency (EPA) has mandated that certain communities create a Stormwater Management Plan under the Phase II National Pollutant Discharge Elimination System (NPDES) program. The program is intended to improve water quality by reducing the discharge of pollutants from storm water runoff into local storm drains, rivers, ponds, streams and other receiving waterbodies.
Please review the Stormwater Management Program (SWMP), the Illicit Discharge Detection and Elimination (IDDE) Plan, the Phosphorus Source Identification Report, and the Salt Reduction Plan (draft) to learn more about the steps Andover will be taking to protect our natural resources. These plans are living documents and will be updated as this program proceeds forward.
ElementsAndover is one of 189 communities affected by this Phase II rule in Massachusetts. In order to comply with the Permit Program, a plan has been developed which comprises the following six elements:
- Public Education and Outreach
- Public Participation/Involvement
- Illicit Discharge Detection and Elimination
- Construction Site Runoff Control
- Post Construction Runoff Control
- Municipal Pollution Prevention/Good Housekeeping
When it rains or as snow melts, the resulting stormwater flows over roads or ground surfaces, picking up debris, chemicals, oils, grease, salt, sediment and other pollutants. These can have harmful effects on drinking water supplies, recreation, fisheries and other wildlife.
What you can do to help prevent stormwater runoff pollution:
Remember: Only rain down the drain!
What is an Illicit Discharge?
An illicit discharge is the discharge of pollutants or non-stormwater materials into a storm drain system via an illegal pipe connection or other direct tie-in and also via overland flow or direct dumping into a catch basin or stormdrain. Municipal storm drains are intended to convey stormwater runoff to nearby lakes and streams to prevent flooding, but they are not intended to carry flow from sources such as sanitary sewers, septic systems, carwashes, laundromats, or other similar sources. Illicit discharges are a problem because stormwater generally flows to a river, pond, or stream without any additional treatment, unlike wastewater or sewage which flows to a wastewater treatment plant. Dumping anything other than stormwater into a storm drain is illegal and considered an illicit discharge.
Sources of Illicit Discharges
- Andover IDDE Plan (PDF)
- Andover Phosphorus Source Identification Report
- Andover SWMP Plan (PDF)
- DRAFT Andover Salt Reduction Plan 6.29.21
- Directory for Stormwater related questions and complaints (PDF)
- Greenscapes - About Stormwater (PDF)
- Greenscapes - Guide to Landscaping (PDF)
- Greenscapes Rain Garden Brochure (PDF)
- Public Education Presentation _Impacts of Stormwater_, June 2006 (PDF)
- Stormwater Runoff Challenge Crossword Puzzle (PDF)