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*[https://stormwater.pca.state.mn.us/index.php?title=Assessing_total_suspended_sediment_and_total_phosphorus_removal_efficiency_of_permittee_owned/operated_constructed_stormwater_ponds Assessing Total Suspended Sediment and Total Phosphorus Removal Efficiency of Permittee Owned/Operated Constructed Stormwater Ponds]: guidance related to assessing the total suspended sediment (TSS) and total phosphorus (TP) removal efficiency of MS4 (Municipal Separate Storm Sewer System) permittee owned/operated ponds constructed and used for the collection and treatment of stormwater.
 
*[https://stormwater.pca.state.mn.us/index.php?title=Assessing_total_suspended_sediment_and_total_phosphorus_removal_efficiency_of_permittee_owned/operated_constructed_stormwater_ponds Assessing Total Suspended Sediment and Total Phosphorus Removal Efficiency of Permittee Owned/Operated Constructed Stormwater Ponds]: guidance related to assessing the total suspended sediment (TSS) and total phosphorus (TP) removal efficiency of MS4 (Municipal Separate Storm Sewer System) permittee owned/operated ponds constructed and used for the collection and treatment of stormwater.
 
*[https://stormwater.pca.state.mn.us/index.php?title=Regulatory/Municipal_(MS4)/Procedures_and_checklists#Checklist_Documents Checklist and Maintenance Documents and Examples of Procedures for MS4 BMP Methods] - PAGE NEEDS TRANSFERRANCE
 
*[https://stormwater.pca.state.mn.us/index.php?title=Regulatory/Municipal_(MS4)/Procedures_and_checklists#Checklist_Documents Checklist and Maintenance Documents and Examples of Procedures for MS4 BMP Methods] - PAGE NEEDS TRANSFERRANCE
*[https://stormwater.pca.state.mn.us/index.php?title=Documentation_requirements_and_documents_to_retain_under_the_MS4_permit Documentation Requirements and Documents to Retain Under the MS4 Permit] - <FONT #FF0000>FIXED TABLE ALIGNMENT - PAGE RECOMMENDED TO BE DELETED - ENSURE LINKED ITEMS ARE TRANSFERRED APPROPRIATELY </FONT>
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*[https://stormwater.pca.state.mn.us/index.php?title=Documentation_requirements_and_documents_to_retain_under_the_MS4_permit Documentation Requirements and Documents to Retain Under the MS4 Permit] - <FONT color = #FF0000>FIXED TABLE ALIGNMENT - PAGE RECOMMENDED TO BE DELETED - ENSURE LINKED ITEMS ARE TRANSFERRED APPROPRIATELY </FONT>
 
*[https://mpca.maps.arcgis.com/apps/webappviewer/index.html?id=8d310e604baa43699b25395834d0c69a MS4 Mapping Tool] - An interactive online map tool to view and explore Minnesota MS4 boundaries, defined urbanized areas, impaired waters, outstanding resource value waters, trout waters and approved TMDL study areas.<br>
 
*[https://mpca.maps.arcgis.com/apps/webappviewer/index.html?id=8d310e604baa43699b25395834d0c69a MS4 Mapping Tool] - An interactive online map tool to view and explore Minnesota MS4 boundaries, defined urbanized areas, impaired waters, outstanding resource value waters, trout waters and approved TMDL study areas.<br>
 
*[https://stormwater.pca.state.mn.us/index.php?title=New_permit_requirements_and_related_guidance_materials New Permit Requirements and Related Guidance Materials] - ENSURE LINKED ITEMS ARE TRANSFERRED APPROPRIATELY
 
*[https://stormwater.pca.state.mn.us/index.php?title=New_permit_requirements_and_related_guidance_materials New Permit Requirements and Related Guidance Materials] - ENSURE LINKED ITEMS ARE TRANSFERRED APPROPRIATELY

Revision as of 12:14, 3 June 2024

Warning: This page is an edit and testing page use by the wiki authors. It is not a content page for the Manual. Information on this page may not be accurate and should not be used as guidance in managing stormwater.
Information: We recently updated this page and will continue to work on information about MS4 stormwater management. If you have suggestions, we welcome comments using the comment box at the bottom of most pages in the manual.
Information: NOTE: Minnesota uses the term Stormwater Pollution Prevention Program (SWPPP) for MS4 stormwater, while several states and EPA may use the term Stormwater Management Plan (SWMP). These terms refer to the same thing.
icon for MS4 stormwater

The municipal separate storm sewer system (MS4) stormwater program is designed to reduce the amount of sediment and pollution that enters surface and ground water from storm sewer systems. Public entities that own or operate an MS4 play a key role in preventing or reducing the negative impacts stormwater runoff has on our valuable water resources.

Proper stormwater runoff management in urbanized areas is especially important for restoring and protecting surface waters. Urbanized areas are more likely to have activities that contribute pollutants to stormwater runoff, like applying anti/deicing mixtures to roads; fueling vehicles; grease, oil, and other spills; landscaping; and using pesticides and fertilizers. Urbanized areas have a large amount of impervious surfaces, or surfaces that rain and snowmelt cannot pass through, such as streets, driveways, rooftops, parking lots and sidewalks. Stormwater runoff from these surfaces travels faster and in higher amounts, damaging rivers, streams, and wetlands; destroying aquatic habitats; increasing the amount of pollutants that enter surface waters; and limiting groundwater recharge and the MS4 program is to help mitigate the impact.

Background Information

Regulated MS4 permittees are required to develop a stormwater pollution prevention program (SWPPP) to reduce the pollutants entering the municipality's storm sewer system. When applying for the MS4 permit, permittees identified measurable goals they intended their SWPPP to reach. Based on these goals, permittees should evaluate the effectiveness of their program and make any necessary changes.


2020 MS4 General Permit


MS4 Stormwater Permits (Individual)


Previous Permits


Minimum Control Measures

When seeking to manage a Municipal Storm Sewer System (MS4), an effective Stormwater Pollution Prevention Program (SWPPP) has six different components known as Minimum Control Measures (MCMs).


WENT THROUGH AND CHECKED REDUNDANT AND BROKEN LINKS ON THE TEST MCM PAGES ALREADY - CHECK TO MAKE SURE ANY DELETED PAGES IN "WHAT LINKS HERE" ARE PROPERLY UPDATED TO THE NEW PAGES - I.E. ANY MCM STUFF POINTING TO THE MS4 TOOLKIT ARE UPDATED TO THE LANDING PAGE OR APPROPRIATE MCM
ALL MCM PAGES NEED TO BE UPDATED WITH THE AARON TEST MCM # PAGE CODE RESPECTIVELY, JUST COPY PASTE IT OVER AND EVERYTHING SHOULD WORK

Total Maximum Daily Loads (TMDLs)

Total Maximum Daily Loads (TMDLs) are EPA approved amounts of pollutant loading that can occur and have a water body meet water quality standards. Follow this link to learn more about them along with guidance and resources.

Tools and Resources

 CLEANED UP SOME OF THE BLOCK TEXT AND WIDDLED IT DOWN TO A MORE CLEAR AND CONCISE MESSAGE OR REMOVED TEXT ALL TOGETHER BECAUSE TITLE IS SELF EXPLANATORY


MS4 Audit Guidance

The U.S. Environmental Protection Agency (EPA) mandates the Minnesota Pollution Control Agency (MPCA) to evaluate MS4 permittees for compliance with the MS4 General Permit. The MPCA does this through compliance audits. To find out more information about the audit process see the pages below:


MPCA MS4 Technical Assistance


Other Resources and Documents