Difference between revisions of "Stormwater Program for Municipal Separate Storm Sewer Systems (MS4)"
Structural BMP use in karst settings > Stormwater re-use and rainwater harvesting > Special:WhatLinksHere/General Pollutant Movement from a Snowpack > Coir and applications of coir in stormwater management > Stormwater Program for Municipal Separate Storm Sewer Systems (MS4)

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	Background Information; 2020 MS4 General Permit; MS4 Stormwater Permits (Individual); Previous Permits; Minimum Control Measures; Total Maximum Daily Loads (TMDLs); Tools and Resources; MS4 Audit Guidance; MPCA MS4 Technical Assistance; Other Resources and Documents;

Latest revision as of 18:55, 8 July 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.

MPCA MS4 staff contact information can be found at this link

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).

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

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.
Checklist and Maintenance Documents and Examples of Procedures for MS4 BMP Methods
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.
Pollution Prevention Guidance Fact Sheets - A Collection of Minnesota Stormwater Manual Fact Sheets on MS4 Stormwater Pollution Prevention Methods.
MS4 Staff Site Plan Review Guidance

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:

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 {{alert|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.|alert-info}}
 {{alert|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.|alert-info}}
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+<!-- to point to a section, it is just the page url then adding #section_name. So background information is a section in this page and to target that specific section it is fullregularurl#background_information -->
 *[https://stormwater.pca.state.mn.us/index.php?title=Aaron_test_MS4_page#Background_Information Background Information]
 *[https://stormwater.pca.state.mn.us/index.php?title=Aaron_test_MS4_page#2020_MS4_General_Permit 2020 MS4 General Permit]
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 The municipal separate storm sewer system (MS4) stormwater program is designed to reduce the amount of <span title="any particulate matter that can be transported by fluid flow and which eventually is deposited as a layer of solid particles on the bed or bottom of a body of water"> '''sediment'''</span> 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 <span title="the portion of rainfall or snowmelt not immediately absorbed into the soil that drains or flows off the land and becomes surface flow"> '''runoff'''</span> has on our valuable water resources.
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 <div title="A municipal separate storm sewer system (MS4) is a means of transportation, individually or in a system, (e.g. roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, storm drains, etc.) that are:
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 <br>
 ==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.
 *[[What is a municipal separate storm sewer system (MS4)?]]
-*[[Why is a municipality regulated under the MS4 permit?]] <FONT color = #FF0000> DELETE OTHER RESOURCES - PERHAPS THIS CAN BE COMBINED WITH THE "WHAT IS AN MS4?" LINK ABOVE? </font>
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 *[https://stormwater.pca.state.mn.us/index.php?title=MCM_6_Pollution_Prevention/Good_Housekeeping Minimum Control Measures 6 - Pollution Prevention/Good Housekeeping]
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-<pre>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</pre>
 ==Total Maximum Daily Loads (TMDLs)==
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 ==Tools and Resources==
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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=Regulatory/Municipal_(MS4)/Procedures_and_checklists#Checklist_Documents Checklist and Maintenance Documents and Examples of Procedures for MS4 BMP Methods]
 *[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=MS4_fact_sheets Pollution Prevention Guidance Fact Sheets] - A Collection of Minnesota Stormwater Manual Fact Sheets on MS4 Stormwater Pollution Prevention Methods.
+*[https://stormwater.pca.state.mn.us/index.php?title=MS4_Staff_Site_Plan_Review_Guidance MS4 Staff Site Plan Review Guidance]
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