Information: The Table of Contents for this Manual has a new format intended to improve access to information.

If you are accustomed to and prefer the previous Table of Contents, you can access it here.

If you have comments or suggestions on the new format please send an email to Mike Trojan at the MPCA.
CWL Logo

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



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-->