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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. | 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)?]] | *[[What is a municipal separate storm sewer system (MS4)?]] | ||
− | *[[Why is a municipality regulated under the MS4 permit?]] | + | *[[Why is a municipality regulated under the MS4 permit?]] |
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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] | *[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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==Total Maximum Daily Loads (TMDLs)== | ==Total Maximum Daily Loads (TMDLs)== | ||
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==Tools and Resources== | ==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=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://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] | ||
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*[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=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_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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The U.S. Environmental Protection Agency (EPA) mandates the Minnesota Pollution Control Agency (MPCA) to evaluate MS4 permittees for compliance with the [https://www.pca.state.mn.us/sites/default/files/wq-strm4-59k.pdf MS4 General Permit]. The MPCA does this through compliance audits. To find out more information about the audit process see the pages below: | The U.S. Environmental Protection Agency (EPA) mandates the Minnesota Pollution Control Agency (MPCA) to evaluate MS4 permittees for compliance with the [https://www.pca.state.mn.us/sites/default/files/wq-strm4-59k.pdf MS4 General Permit]. The MPCA does this through compliance audits. To find out more information about the audit process see the pages below: | ||
*[https://www.epa.gov/sites/production/files/2015-11/documents/measurablegoals.pdf EPA's measureable goal guidance for developing and evaluating a stormwater progarm's goal] | *[https://www.epa.gov/sites/production/files/2015-11/documents/measurablegoals.pdf EPA's measureable goal guidance for developing and evaluating a stormwater progarm's goal] | ||
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*[https://stormwater.pca.state.mn.us/index.php?title=Phase_II_MS4_audit_process Phase II MS4 Audit Process] | *[https://stormwater.pca.state.mn.us/index.php?title=Phase_II_MS4_audit_process Phase II MS4 Audit Process] | ||
*[https://stormwater.pca.state.mn.us/index.php?title=Self-audit_guidance_for_Phase_II_MS4s Self-Audit Guidance for Phase II MS4s] | *[https://stormwater.pca.state.mn.us/index.php?title=Self-audit_guidance_for_Phase_II_MS4s Self-Audit Guidance for Phase II MS4s] | ||
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==Other Resources and Documents== | ==Other Resources and Documents== | ||
− | *[https://stormwater.pca.state.mn.us/index.php?title= | + | *[https://stormwater.pca.state.mn.us/index.php?title=MS4_Stormwater_Acknowledgements Acknowledgements to Contributors] |
− | *[https://stormwater.pca.state.mn.us/index.php?title= | + | *[https://stormwater.pca.state.mn.us/index.php?title=MS4_Photo_Library MS4 Outreach Photo Library] |
*[https://youtu.be/xx1pgugfXeU MS4 Program Overview and Minimum Control Measures (MCM) Descriptions - YouTube Video] | *[https://youtu.be/xx1pgugfXeU MS4 Program Overview and Minimum Control Measures (MCM) Descriptions - YouTube Video] | ||
*[https://stormwater.pca.state.mn.us/index.php?title=Pond,_lake,_and_wetland_inventory Pond, Lake, and Wetland Inventory] | *[https://stormwater.pca.state.mn.us/index.php?title=Pond,_lake,_and_wetland_inventory Pond, Lake, and Wetland Inventory] | ||
*[https://www.pca.state.mn.us/sites/default/files/wq-strm1-07.pdf Stormwater and Wetlands - Planning and Evaluation Guidelines] | *[https://www.pca.state.mn.us/sites/default/files/wq-strm1-07.pdf Stormwater and Wetlands - Planning and Evaluation Guidelines] | ||
*[https://www.pca.state.mn.us/sites/default/files/wq-strm4-28.pdf Untreated Stormwater Runoff to Lakes, Streams, and Wetlands] | *[https://www.pca.state.mn.us/sites/default/files/wq-strm4-28.pdf Untreated Stormwater Runoff to Lakes, Streams, and Wetlands] |
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.
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.
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) 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.
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: