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Municipal Separate Storm Sewer System (MS4) permittees who have a U.S.EPA-approved total maximum daily load (TMDL) wasteload allocation (WLA) that they are not meeting must annually report on progress made toward achieving those WLAs. This is achieved by submitting an annual report on a Minnesota Pollution Control Agency (MPCA) form approved by the MPCA Commissioner. This page provides links to guidance on completing that form, including links to resources and tools used to complete the form.
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{{alert|The guidance on this page refers to the 2013 MS4 permit. The guidance will be updated in the coming months to reflect the 2020 MS4 permit|alert-warning}}
  
NOTE: Permit requirements differ for Phase 2 MS4s and the two Phase 1 cities (St. Paul and Minneapolis), so the page is divided into separate sections based on those differing requirements.
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<span 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: owned or operated by a public entity (e.g. cities, townships, counties, military bases, hospitals, prison complexes, highway departments, universities, etc.) with jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes. This includes special districts under State law (sewer, flood control, or drainage districts, etc.), an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the Clean Water Act; designed or used for collecting or transporting stormwater; not a combined sewer; and not part of a publicly owned treatment works."> '''MS4'''</span> (Municipal Separate Storm Sewer System) permittees who have a U.S.EPA-approved <span title="the amount of a pollutant from both point and nonpoint sources that a waterbody can receive and still meet water quality standards"> [https://stormwater.pca.state.mn.us/index.php?title=Total_Maximum_Daily_Loads_(TMDLs) '''total maximum daily load''']</span> <span title="the portion of a receiving water's assimilative capacity that is allocated to one of its existing or future point sources of pollution"> '''wasteload allocation'''</span> (WLA) that they are not meeting must annually report on progress made toward achieving those WLAs. This is achieved by submitting an annual report on a Minnesota Pollution Control Agency (MPCA) form approved by the MPCA Commissioner. This page provides links to guidance on completing that form, including links to resources and tools used to complete the form.
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NOTE: Permit requirements differ for <span title="The Stormwater Phase II Rule extends coverage of the NPDES stormwater program to certain “small” MS4s but takes a slightly different approach to how the stormwater management program is developed and implemented."> '''Phase 2'''</span> MS4s and the two <span title="The Phase I program for MS4s requires operators of “medium” and “large” MS4s, that is, those that generally serve populations of 100,000 or greater, to implement a stormwater management program as a means to control polluted discharges from these MS4s"> '''Phase 1'''</span> cities (St. Paul and Minneapolis), so the page is divided into separate sections based on those differing requirements.
  
 
==Phase 2 MS4s==
 
==Phase 2 MS4s==
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===Guidance for completing the Annual Report form===
 
===Guidance for completing the Annual Report form===
 
#[[Download page with TMDL forms]]
 
#[[Download page with TMDL forms]]
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#[https://app.sharebase.com/#/folder/37975/share/185-TTxu0Ww9u4UPSmPNf7orb4onwcc Link to many TMDL shapefiles]
 
#[[Guidance for completing the TMDL reporting form]]
 
#[[Guidance for completing the TMDL reporting form]]
 
##[[Quick Guide: BMP-Activities completed tab]]
 
##[[Quick Guide: BMP-Activities completed tab]]
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#[[FAQs on TMDL reporting form]]
 
#[[FAQs on TMDL reporting form]]
 
#[[Baseline year]]
 
#[[Baseline year]]
#[[TMDL shapefiles]]
 
#Flow regime discussion
 
  
 
===Guidance for resources and tools used to complete the Annual Report form===
 
===Guidance for resources and tools used to complete the Annual Report form===
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#[[FAQs on TMDL reporting form]]
 
#[[FAQs on TMDL reporting form]]
 
#[[Baseline year]]
 
#[[Baseline year]]
#[[TMDL shapefiles]]
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#[https://app.sharebase.com/#/folder/37975/share/185-TTxu0Ww9u4UPSmPNf7orb4onwcc Link to many TMDL shapefiles]
 
#Flow regime discussion
 
#Flow regime discussion
  
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#[[Guidance and examples for using the MPCA Estimator]]
 
#[[Guidance and examples for using the MPCA Estimator]]
 
##[[Quick Guide: MPCA Estimator tab]]
 
##[[Quick Guide: MPCA Estimator tab]]
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==Related Pages==
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*[[Overview of TMDLs]]
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*[[Summary of TMDL requirements in stormwater permits]]
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*[http://www.pca.state.mn.us/index.php/water/water-types-and-programs/minnesotas-impaired-waters-and-tmdls/minnesotas-impaired-waters-and-total-maximum-daily-loads-tmdls.html Minnesota's impaired waters and TMDLs] - homepage to find completed, draft and TMDLs underway
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==Guidance documents==
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*[http://www.pca.state.mn.us/index.php/view-document.html?gid=19465 Addressing TMDL Requirements in MS4 General Permit Applications and Stormwater Pollution Prevention Program Documents]
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*[http://www.pca.state.mn.us/index.php/view-document.html?gid=19456 List of approved TMDLs with MS4 Wasteload Allocations]
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*[[Technical guidance used by MPCA to develop guidelines for setting TMDL WLAs for regulated stormwater]]
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*[[Case studies for regulated stormwater issues]]
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*[[Guidance on what discharges should be included in the TMDL wasteload allocation for MS4 stormwater]]
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*[[Construction activity by county]]

Revision as of 13:24, 17 August 2022

Caution: The guidance on this page refers to the 2013 MS4 permit. The guidance will be updated in the coming months to reflect the 2020 MS4 permit

MS4 (Municipal Separate Storm Sewer System) permittees who have a U.S.EPA-approved total maximum daily load wasteload allocation (WLA) that they are not meeting must annually report on progress made toward achieving those WLAs. This is achieved by submitting an annual report on a Minnesota Pollution Control Agency (MPCA) form approved by the MPCA Commissioner. This page provides links to guidance on completing that form, including links to resources and tools used to complete the form.

NOTE: Permit requirements differ for Phase 2 MS4s and the two Phase 1 cities (St. Paul and Minneapolis), so the page is divided into separate sections based on those differing requirements.

Phase 2 MS4s

Guidance for completing the Annual Report form

  1. Download page with TMDL forms
  2. Link to many TMDL shapefiles
  3. Guidance for completing the TMDL reporting form
    1. Quick Guide: BMP-Activities completed tab
    2. Quick Guide: Cumulative reductions tab
  4. Examples for completing the TMDL reporting form
  5. FAQs on TMDL reporting form
  6. Baseline year

Guidance for resources and tools used to complete the Annual Report form

  1. Additional resources for completing the TMDL form
  2. Guidance and examples for using the MPCA Estimator
    1. Quick Guide: MPCA Estimator tab

Phase 1 MS4s

Guidance for completing the Annual Report form

  1. Download page with TMDL forms
  2. Guidance for completing the TMDL reporting form
    1. Quick Guide: BMP-Activities completed tab
    2. Quick Guide: Cumulative reductions tab
  3. Examples for completing the TMDL reporting form
  4. Additional resources for completing the TMDL form
  5. Guidance and examples for using the MPCA Estimator
    1. Quick Guide: MPCA Estimator tab
  6. FAQs on TMDL reporting form
  7. Baseline year
  8. Link to many TMDL shapefiles
  9. Flow regime discussion

Guidance for resources and tools used to complete the Annual Report form

  1. Additional resources for completing the TMDL form
  2. Guidance and examples for using the MPCA Estimator
    1. Quick Guide: MPCA Estimator tab

Related Pages

Guidance documents