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Stormwater Management - MS4


Stormwater Management


In response to the 1987 Amendments to the Clean Water Act (CWA), the United States Environmental Protection Agency (EPA) developed the National Pollutants Discharge Elimination System (NDPES) storm water program. The initial phase targeted the medium and large municipal storm water systems and in December of 1999, Phase II was established requiring small municipal separate storm sewer systems (MS4) to create stormwater management programs.

Compliance with Phase II is required for all municipal separate storm sewer systems located within the Urbanized Area. A small amount of the Burleigh County stormwater system fall within this urbanized area, requiring the County to comply with the federal stormwater regulations.

The stormwater management program was designed to address the increased rate and volume of runoff from the impervious surfaces often found in urbanized areas and the corresponding concentration of pollutants as result of the land use changes. These changes impact an areas hydrology and water quality in a variety of ways:

  • Habitat modification and loss
  • Increased flooding
  • Decreased aquatic biological diversity
  • Increased sedimentation and erosion

  • Operators of the regulated municipal separate storm sewer systems (MS4s) are required to design programs to reduce the discharge of pollutants to the "maximum extent practicable" to protect water quality and satisfy the appropriate water quality requirements of the Clean Water Act.

    Implementation of the program requires the development of Best Management Practices (BMPs) and the achievement of measurable goals to satisfy each of the six Minimum Control Measures.


    Phase II Minimum Control Measures


    Under the stormwater program, MS4s are required to develop and implement a Stormwater Pollution Prevention Program (SWPPP). The SWPPP must cover six minimum control measures:

    The MS4 must identify best management practices (BMP) and measurable goals associated with each minimum control measure. An annual report on the implementation of the SWPPP must be submitted each year.
    1. Public Education
    2. Public Involvement
    3. Illicit Discharge Detection & Elimination
    4. Construction Site Discharge Controls
    5. Post-Construction Controls for New Development
    6. Good housekeeping & Pollution Prevention

    Six Minimum Control Measures


    1. Public Education and Outreach

    The SWPPP activities implemented under Minimum Control Measure (MCM) 1 will focus on increasing public awareness of the harmful effects of storm water runoff and its potential to affect the water quality of the Missouri River in the small regulated municipal separate storm sewer systems (MS4's) metropolitan area. Services and educational information will be made available to the public to promote practices conducive to the reduction of pollution that results from storm water runoff. Outreach programs and educational activities that demonstrate the impacts of stormwater discharges on the Missouri River will be developed and implemented within the permit term to increase the general level of understanding of the SWPPP throughout the community.

  • Map of Effected Area
  • EPA - Stormwater Phase II Final Rule Brochure
  • City of Bismarck - Stormwater Web Site
  • City of Bismarck - Public Education and Outreach Web Site


  • 2. Public Involvement


    The SWPPP activities implemented under Minimum Control Measure (MCM) 2 will focus on increasing public involvement and participation in reducing the harmful effects of storm water runoff and its potential to affect the water quality of the Missouri River in the Bismarck metropolitan area. Activities that will reduce or eliminate the impacts of stormwater discharges on the Missouri River will be developed and implemented within the permit term to increase the general level of involvement in the SWPPP throughout the community.

  • Burleigh County Web Site


  • 3. Illicit Discharge Detection and Elimination


    The SWPPP activities implemented under Minimum Control Measure (MCM) 3 will focus on developing, implementing, and enforcing a program that will reduce and eliminate the impacts of illicit discharges into the storm sewer system during the permit term throughout the community.

  • City of Bismarck - Illicit Discharge Web Site


  • 4. Construction Site Discharge Controls


    The SWPPP activities implemented under Minimum Control Measure (MCM) 4 will focus on developing, implementing, and enforcing a program that will reduce or eliminate the impacts of stormwater runoff from construction activities that result in a land disturbance of greater than or equal to one acre into the storm sewer system during the permit term throughout the community.

  • City of Bismarck - Construction Site and Erosion Control Web Site


  • 5. Post-Construction Controls for New Development


    The SWPPP activities implemented under Minimum Control Measure (MCM) 5 will focus on developing, implementing, and enforcing a program that will reduce or eliminate the impacts of storm water runoff from new development and redevelopment projects that disturb greater than or equal to one acre, including projects that are less than one acre and are part of a larger development plan, that discharge into the storm sewer system during the permit term throughout the community.

  • Burleigh County Zoning Ordinances


  • 6. Good Housekeeping & Pollution Prevention


    The SWPPP activities implemented under Minimum Control Measure (MCM) 6 will focus on developing, implementing, and enforcing an operations and maintenance program that will reduce or eliminate the impacts of storm water pollution from open space maintenance, snow disposal, vehicle and building maintenance, land disturbances, and storm sewer system maintenance during the permit term throughout the community.

  • City of Bismarck - Pollution Prevention/Good Housekeeping Web Site


  • Related Links


    City of Bismarck

  • Recycling and disposal of household hazardous waste (HHW) in the City of Bismarck


  • US Environmental Protection Agency (EPA)

  • National Pollutant Discharge Elimination System (NPDES)


  • ND Department of Health

  • Stormwater Program


  • ND Department of Transportation

  • Erosion and Sediment Control Handbook