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Welcome to the Minnesota Stormwater Manual website. This website was developed using Mediawiki, a wiki application that allows for easy editing and that has powerful search abilities. See Introduction to the wiki for more information.

Introduction to the Minnesota Stormwater Manual

Stormwater concepts and stormwater management

Stormwater issues

Stormwater control practices (Best Management Practices)

By type

By treatment mechanism

Regulatory, permitting

Models, calculations, methodologies, pollutant removal, credits

Case studies




Minnesota Stormwater Manual

General Information

  1. Overview of basic stormwater concepts
  2. Stormwater research and education
  3. References for general stormwater information
  4. Minnesota maps

Stormwater treatment concepts

  1. Integrated stormwater management
  2. Using the treatment train approach to BMP selection
  3. Process for selecting Best Management Practices
Stormwater function of Best Management Practices (BMPs). Blue hyperlinks are indicated for BMPs contained in this manual.
Best Management Practice Prevention and education Infiltration Storage, harvesting and reuse Filtration Settling Chemical
Civic engagement x
Education x
Pollution prevention x
Road de-icing x
Yard waste management x
Better site design x
Construction/erosion sediment control x
Harvesting/reuse x
Street sweeping x
Green roofs x x
Turf x x
Permeable pavement x x
Tree boxes and tree trenches x x
Infiltration basin and Infiltration trench x x
Bioinfiltration x x
Biofiltration x
Swales x x x
Sand filter x
Iron enhanced sand filter (Minnesota Filter) x x
Stormwater ponds x
Stormwater wetlands x
Subsurface gravel wetlands x
Hydrodynamic devices x
Filtration devices x
Chemical treatment x

Best Management Practices

Information: Use the table to the right to determine the functionality of a Best Management Practice
Information: Many of the topics in this section have multiple articles. To view a single document that combines all articles within a topic, click on the + icon
  1. Pre-treatment
  2. Individual Best Management Practices
    1. Pollution prevention
    2. Better site design
    3. Stormwater re-use and rainwater harvesting
    4. Temporary construction erosion and sediment control
      1. Alleviating compaction from construction activities
    5. Green roofs (+)
    6. Turf
    7. Permeable pavement (+)
    8. Trees
    9. Bioretention (+)
      1. Rain garden: see Bioretention
    10. Infiltration basin (+)
    11. Infiltration trench (+)
    12. Filtration (+)
      1. Swales
      2. Sand filters
    13. Iron enhanced sand filter (Minnesota Filter) (+)
    14. Stormwater ponds (+)
    15. Stormwater wetlands (+)
    16. Hydrodynamic devices
    17. Filtration devices
    18. Chemical treatment
  3. Unified sizing criteria section (+)

Minimal Impact Design Standards (MIDS)

Link to the MIDS webpage for access to webex presentations, additional technical documents, meeting minutes.

  1. Overview of Minimal Impact Design Standards (MIDS)
  2. Performance goals for new development, re-development and linear projects
  3. Design Sequence Flowchart-Flexible treatment options
    1. Design sequence flow chart
  4. Community Assistance Package
  5. MIDS calculator
    1. Calculator - link to the MIDS calculator
    2. User’s Guide
    3. Links to Manual pages that address the MIDS calculator
    4. MIDS calculator sample exercises
  6. Performance curves for MIDS calculator
  7. Training and workshop materials and modules
  8. Technical documents

Stormwater modeling, models and calculators

View all articles in this section and in the next section (Stormwater pollutant removal/reduction credits) as a single document.
  1. Introduction to stormwater modeling
  2. Available stormwater models and selecting a model
  3. Detailed information on specific models
  4. What is the pre-development condition

Stormwater pollutant removal/reduction credits

View all articles in this section and in the previous section (Stormwater modeling, models and calculators) as a single document.
  1. Overview of stormwater credits
  2. Information on pollutant removal by BMPs
  3. Calculating stormwater volume and pollutant reductions and credits


  1. Regulatory information
  2. Additional regulatory information

Minnesota specific issues and information

  1. Cold climate impact on runoff management
  2. Stormwater infiltration and constraints on infiltration (View articles as a single document)
  3. Mosquito control and stormwater management
  4. Managing stormwater sediments
  5. Minnesota plant lists
  6. Special waters and other sensitive receiving waters
  7. Road salt
  8. Stormwater management for lake protection and restoration

Case studies

Computer-aided design and drafting (CAD/CADD) drawings

  1. CADD images for individual best management practices
  2. Links to .dwg files

References, forms, links, and issue papers

  1. References
  2. Forms (including field inspection forms)
  3. Links
  4. Issue papers
  5. Stormwater manuals

Acronyms, symbols and glossary

  1. Acronyms
  2. Symbols
  3. Glossary (definitions)
  4. BMP terminology

Construction stormwater

Construction stormwater program

  1. Construction stormwater permit

Industrial stormwater

  1. Stormwater program for industrial activity
  2. Industrial Stormwater 2015 – 2020 Permit benchmark monitoring requirements
  3. Industrial Stormwater 2015 – 2020 Permit effluent monitoring requirements

Municipal stormwater

  1. Stormwater Program for Municipal Separate Storm Sewer Systems (MS4)
  2. MS4 General Permit
  3. MS4 General Permit Application Information
  4. Total Maximum Daily Loads (TMDLs)
  5. MS4 Annual Report

Link to MS4 website-->