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.

MS4 Program Documents

Braintree MS4 Documents

• Stormwater Management Program
• 2021 MS4 Annual Report
• 2020 MS4 Annual Report
• 2019 MS4 Annual Report
• MS4 Authorization to Discharge (EPA) (June 2019)
• 2018 MS4 Notice of Intent (EPA)
• 2018 MS4 Annual Report 

Permit Year 4 Documents

• 2022 Annual Report (coming soon)
• Impervious Cover Creation Report
• LID Policy Report
• Braintree Municipal Retrofit Report
• 2022 Outfall Testing Memo
• Interconnection Screening Results
• 2022 IDDE Outfall Ranking
• AO Task IV-2 SSO Mitigation Plan
• Sanitary Sewer Overflow (SSO) Inventory (2013-2022)

IDDE (Illicit Discharge Detection and Elimination) Documents

• Illicit Discharge Detection and Elimination (IDDE) Program
• Outfall and Interconnection Inventory and Ranking (Excel)
• 2021 Interconnections Inventory
  • Confirmed Interconnections Map
  • Confirmed Interconnections List
  • Interconnections Screening Reports
• 2020 IDDE Investigation Memo
  
• 2019 IDDE investigation memo with appendices
• GIS Layer with appendices - shows GIS layer delineating catchments

Braintree Stormwater Pollution Prevention Plans

• DPW Union St. Facility 
• Compost Facility

Town of Braintree Standard Operating Procedures (SOPs) for Stormwater Management

To view the folder for the following SOPs, click here Version OptionsMunicipal Separate Storm Sewer System (MS4) Program DocumentsHeadline.

• Inventory of Municipal Properties (PDF)
  
• Dry Weather Outfall Inspection
• Wet Weather Outfall Inspection
• Catch Basin Cleaning
• Spill Response
• Erosion and Sedimentation Inspection
• Fuel and Oil Handling Procedures
• Inspecting Stormwater Treatment Structures
• Locating Illicit Discharges
• Oil Water Separator Maintenance
• Pesticide and Fertilizer Use
• Water Quality Screening
• Municipal Vehicle Washing
• Private Drainage Inspection
• Sump Pump Inspection
• Street Sweeping
• Hazardous Materials Handling
• Winter Road Maintenance
• Parks and Open Spaces
• Buildings and Facilities
• Vehicles and Equipment
• Construction Site Runoff Control and Inspection

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 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 (2013-2022)