Storm Water Management

The Town of Chatham has prepared a Storm Water Management Plan (SWMP) which is designed to:

  • Protect water quality.
  • Reduce the discharge of pollutants to the maximum extent practicable.
  • Satisfy the requirements of the Clean Water Act.

The SWMP is based on guidance provided by the Massachusetts Department of Environmental Protection and the United States Environmental Protection Agency Region I, and the conditions of the National Pollutant Discharge Elimination System (NPDES) Phase II General Permit for stormwater discharges.

Documents

  1. Brochure - What You Need to Know Chatham Board of Health Fertilizer Regulation (PDF)
  2. EPA Guide 2007 - Stormwater Pollution Prevention Plan A Guide for Construction Sites (PDF)
  3. Final SWMP (PDF)
  4. Map of Chatham Showing Area Covered by EPA Phase II Program (PDF)
  5. New MS4 Permit - Authorization Letter (2019) (PDF)
  6. New MS4 Permit - Notice of Intent (2018) (PDF)
  7. Stormwater Discharge Point Map, 2003 (Note - A Number of Discharges Shown Have Been Remediated See Yearly MS4 Reports for Updates) (PDF)