Municipal Separate Storm Sewer System (MS4)

EPA MS4 Stormwater Program

The storm drain system in Braintree is regulated by the Environmental Protection Agency MS4 (Municipal Separate Storm Sewer System) permit program. The issuance of this permit means that residents, businesses, developers, and industrial facilities in Braintree shall only discharge clean stormwater. The Braintree Stormwater Division is responsible for ensuring that nothing enters the system that can pollute our streams, rivers, and lakes.

Important MS4 Links

• Town of Braintree MS4 Documents
  • 2019 MS4 Annual Report
  • 2018 MS4 Annual Report
  • MS4 Notice of Intent (EPA)
  • MS4 Authorization Letter (EPA) 
  • Stormwater Management Plan (EPA)
  • Illicit Discharge Detection and Elimination (IDDE) Program
  • Final GIS Layer with appendices
  • Final IDDE investigation memo with appendices
  • Inventory of Municipal Properties (PDF)
• Town of Braintree Standard Operating Procedures (SOPs) for Stormwater Management
  • Catch Basin Inspection & Cleaning
  • Stormwater Treatment Structures Inspection & Maintenance
  • Sweeping Streets & Parking Lots
  • Winter Road Maintenance - Snow Removal & De-Icing
  • Building and Facilities Operations and Maintenance Procedures
  • Construction Inspection Procedures
  • Construction Site Runoff Procedures
  • Dry Weather Outfall Inspection Procedures
  • Erosion and Sedimentation Inspection Procedures
  • Fuel and Oil Handling Procedures
  • Hazardous Material Storage and Handling Procedures
  • Locating Illicit Discharge Procedures
  • Municipal Vehicle Washing Procedures
  • Oil Water Separator Maintenance Procedures
  • Parks and Open Spaces Operations and Maintenance Procedures
  • Pesticide and Fertilizer Procedures
  • Spill Response Procedures
  • Water Quality Screening With Field Kits Procedures
  • Wet Weather Outfall Inspection Procedures
• Other MS4 Links
  • Braintree Waterbody Assessment & Total Maximum Daily Loads (TMDL) Status Map - This map provides an overview of the impaired waters in Braintree. As defined by Section 303(d) of the Clean Water Act, impaired waters do not meet established state water quality standards. The law requires that states establish priority rankings for impaired waters and develop Total Maximum Daily Loads (TMDLs) for these waters. A TMDL includes a calculation of the maximum amount of a pollutant that can be present in a body of water and still meet quality standards. To learn more about the 303(d) Impaired Waters and TMDL Program, please visit the EPA’s website.
  • Minimum Control Measure 4 - Construction Site Stormwater Runoff Program
  • Construction Site Stormwater Inspection Report
  • Drainage Maintenance Log 2017-2019
  • Sanitary Sewer Overflow (SSO) Inventory (2013-2019)