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==2020 MS4 General Permit== | ==2020 MS4 General Permit== | ||
− | *[https://www.pca.state.mn.us/sites/default/files/wq-strm4-94.pdf 2020 MS4 General Permit | + | *[https://www.pca.state.mn.us/sites/default/files/wq-strm4-94.pdf 2020 MS4 General Permit] |
*[https://stormwater.pca.state.mn.us/index.php?title=MS4_General_Permit_reissuance 2020 MS4 General Permit Reissuance Page] | *[https://stormwater.pca.state.mn.us/index.php?title=MS4_General_Permit_reissuance 2020 MS4 General Permit Reissuance Page] | ||
*[[2020 MS4 General Permit|2020 MS4 General Permit Wiki Version]] | *[[2020 MS4 General Permit|2020 MS4 General Permit Wiki Version]] | ||
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− | ==MS4 Stormwater Permits | + | ==MS4 Individual Stormwater Permits== |
− | *[https://stormwater.pca.state.mn.us/index.php?title=File:Final_Permit-StPaul_MS4Permit.pdf 2018 St. Paul Phase I | + | *[https://stormwater.pca.state.mn.us/index.php?title=File:Final_Permit-StPaul_MS4Permit.pdf 2018 St. Paul Phase I Permit] |
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==Past Permits== | ==Past Permits== | ||
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*[https://stormwater.pca.state.mn.us/index.php?title=2013_MS4_General_Permit 2013 MS4 General Permit] | *[https://stormwater.pca.state.mn.us/index.php?title=2013_MS4_General_Permit 2013 MS4 General Permit] | ||
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*[https://stormwater.pca.state.mn.us/index.php?title=File:Mpls_MS4Permit_Mod.pdf 2018 Minneapolis Phase I Permit] | *[https://stormwater.pca.state.mn.us/index.php?title=File:Mpls_MS4Permit_Mod.pdf 2018 Minneapolis Phase I Permit] | ||
*[https://stormwater.pca.state.mn.us/index.php?title=File:Minneapolis_2011_Phase_I_Permit_-_Minnesota_Stormwater_Manual_July_2022.pdf 2011 Minneapolis Phase I Permit] | *[https://stormwater.pca.state.mn.us/index.php?title=File:Minneapolis_2011_Phase_I_Permit_-_Minnesota_Stormwater_Manual_July_2022.pdf 2011 Minneapolis Phase I Permit] | ||
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*[https://stormwater.pca.state.mn.us/index.php?title=File:St_Paul_2011_Phase_I_Permit_-_Minnesota_Stormwater_Manual_July_2022.pdf 2011 St. Paul Phase I Permit] | *[https://stormwater.pca.state.mn.us/index.php?title=File:St_Paul_2011_Phase_I_Permit_-_Minnesota_Stormwater_Manual_July_2022.pdf 2011 St. Paul Phase I Permit] | ||
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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:
This page was last edited on 19 August 2024, at 19:17.