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====When must a SWPPP must be completed?====
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====When must a SWPPP be completed?====
 
<p>In all cases the SWPPP needs to be “completed” prior to submitting the permit coverage application.</p>
 
<p>In all cases the SWPPP needs to be “completed” prior to submitting the permit coverage application.</p>
====When must a SWPPP must be sent to the MPCA?====
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<p>The SWPPP generally does not need to be “submitted” to the MPCA at the time of permit application. For certain projects or common plans of development or sale disturbing 50 acres or more, the application must be submitted at least 30 days before the start of construction activity.</p>
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====When must a SWPPP be sent to the MPCA?====
<p>Be aware that in all cases the failure to prepare an accurate and complete SWPPP prior to submitting the application invalidates the application and the stormwater discharges associated with construction activity will not be authorized by this permit. </p>
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<p>The SWPPP generally does not need to be “submitted” to the MPCA at the time of permit application. For certain projects or common plans of development or sale disturbing 50 acres or more and the site has a discharge point that flows to a special or impaired water within a mile of the site, application must be submitted at least 30 days before the start of construction activity.</p>
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<p>Failure to prepare an accurate and complete SWPPP prior to submitting the application invalidates the application and the stormwater discharges associated with construction activity will not be authorized by this permit. </p>
 
<p>In all cases the SWPPP must be retained on site (see the permit for details) during construction and the owners must retain the SWPPP on file for three years after construction has been completed. </p>
 
<p>In all cases the SWPPP must be retained on site (see the permit for details) during construction and the owners must retain the SWPPP on file for three years after construction has been completed. </p>
  
====When does a SWPPP need to be sent prior to the or along with the permit application?====
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====When does a SWPPP need to be sent to the MPCA along with the permit application?====
 
<p>If the following three things are true, then the SWPPP must be submitted to the MPCA for review at least 30 days prior to the start of construction activity:</p>
 
<p>If the following three things are true, then the SWPPP must be submitted to the MPCA for review at least 30 days prior to the start of construction activity:</p>
#Sites disturbing 50 acres or more (projects or common plans of development or sale) and  
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#The site will disturb 50 acres or more (including smaller sites that are part of a common plan of development or sale that will be 50 acres or more total) and  
#Within one mile of, and flows to a waterbody and  
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# Is within one mile of, and flows to a waterbody and  
#The waterbody is “a special water listed in Appendix A, Part B. or waters listed as impaired under section 303(d) of the federal Clean Water Act (see the MPCA’s web site) where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment)”.
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#The waterbody is “a special water listed in Part B of the [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_program Construction Stormwater permit]. or [https://www.pca.state.mn.us/air-water-land-climate/minnesotas-impaired-waters-list waters listed as impaired under section 303(d)] of the federal Clean Water Act where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment)”.
 
<p>If any or all of the three items above are not true, then the SWPPP does not have to be approved prior to submittal of the permit coverage application. </p>
 
<p>If any or all of the three items above are not true, then the SWPPP does not have to be approved prior to submittal of the permit coverage application. </p>
<p>The language in the permit state the actual requirements. This guidance is offered to assist the regulated parties but does not replace or does following this guidance excuse noncompliance with the permit.</p>
 
 
====What does Construction Activity mean?====
 
<p>“Construction Activity” includes construction activity as defined in 40 C.F.R. pt. 122.26(b)(14)(x) and small construction activity as defined in 40 C.F.R. pt. 122.26(b)(15) ) and construction activity as defined by Minn. R. 7090.0080, subp. 4. This includes a disturbance to the land that results in a change in the topography, existing soil cover (both vegetative and non-vegetative), or the existing soil topography that may result in accelerated stormwater runoff, leading to soil erosion and movement of sediment into surface waters or drainage systems. Examples of construction activity may include clearing, grading, filling, and excavating. Construction activity includes the disturbance of less than one acre of total land area that is a part of a larger common plan of development or sale if the larger common plan will ultimately disturb one (1) acre or more.</p>
 
  
 
====What does"...Within one mile of, and flows to a waterbody..." mean?====
 
====What does"...Within one mile of, and flows to a waterbody..." mean?====
 
<p>It means the shortest straight line distance measurement between the point of stormwater discharge from a project construction site to the nearest edge of the water body the stormwater will flow to. This measurement does not follow the meander flow path.</p>
 
<p>It means the shortest straight line distance measurement between the point of stormwater discharge from a project construction site to the nearest edge of the water body the stormwater will flow to. This measurement does not follow the meander flow path.</p>
 +
<p>A SWPPP does not need to be submitted for review for sites 50 acres or more if stormwater from the site does not flow to the special or impaired water even though it may be located within a mile of the site. This may be the case if the existing topography is such that stormwater from the site will not ultimately flow into the special or impaired water because the site is not located in the same watershed as the special or impaired water. However, the SWPPP must still be submitted if stormwater from the site will ultimately reach the waterbody even if the stormwater does not flow directly into the impaired or special water located within a mile of the site.</p>
  
 
====How do we determine if a water body is a special water or one of the impaired waters described in the permit?====
 
====How do we determine if a water body is a special water or one of the impaired waters described in the permit?====
<p>The language in the permit states the actual requirements. This guidance is offered to assist the regulated parties but does not replace or does following this guidance excuse noncompliance with the permit.</p>
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<p>This guidance is offered to assist the regulated parties but does not replace nor does following this guidance excuse noncompliance with the permit.</p>
<p>The MPCA does not have a tool that will definitively indicate where a project will discharge to. There are just too many variables. The regulated party is required to make that determination. The current state of available MPCA tools can only indicate if a site is within a mile of the project. The tool we recommend for this project is found [http://pca-gis02.pca.state.mn.us/CSW/index.html here].</p>
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<p>Sites located near impaired waters listed under section 303(d) of the federal Clean Water Act where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment are required to comply with the NPDES/SDS Construction Stormwater permit requirements.</p>
<p>The list of special waters can be found [http://www.pca.state.mn.us/index.php/view-document.html?gid=7375 here].</p>
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<p>The MPCA website has a Special and Impaired Water Search tool that can be found [https://www.pca.state.mn.us/air-water-land-climate/minnesotas-impaired-waters-list here]. The tool provides a visual way to locate waters within 1 mile of the site and choosing the topographic version can help determine if stormwater will flow to the waterbody. A measuring tool is also available to determine the distance to the water body. The actual 303(d) list of impaired waters can also be found at [https://www.pca.state.mn.us/air-water-land-climate/minnesotas-impaired-waters-list MPCA’s website]. The regulated party is required to make the determination whether stormwater will flow to the water body and that the SWPPP requires review prior to obtaining permit coverage. Additional impaired waters are likely to be added to the list in future years and others might be deleted from the list once the water is no longer impaired. The list is updated every 2 years. If uncertain about the status of particular waterbody, the regulated party may contact the MPCA Stormwater Hotline at 651-757-2119 or 800-657-3804.</p>
<p>The list of waters listed as impaired under section 303(d) of the federal Clean Water Act (see the MPCA’s web site) where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment can be found here.</p>
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====I am required to submit a SWPPP, how do I do that?====
 
====I am required to submit a SWPPP, how do I do that?====
<p>If possible the SWPPP should be e-mailed to CSW.pca@state.mn.us</p>
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<p>The SWPPP may be submitted in either paper or digital formats. Digital formats are preferred to conserve on the amount of paper use and for filing efficiency. Smaller size SWPPPs (less than 24MB) can be e-mailed to the MPCA at CSW.pca@state.mn.us. Extremely large SWPPPs such as those with numerous photos, maps, etc. can be submitted to the MPCA on a CD or other digital storage devise. Hardcopies of SWPPPs can also be submitted by U.S. Mail or hand-delivered to the MPCA. If you have questions about submitting your SWPPP call MPCA Stormwater Hotline at 651-757-2119 or 800-657-3804.</p>
<p>There is a 24.5 MB file size limit on this e-mail. If you can not e-mail the SWPPP to the MPCA please send an e-mail to CSW.pca@state.mn.us with an explaination and the the MPCA will get back to you with further instructions.</p>
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<p>The applicant must allow up to 30 days for staff to review the SWPPP. Once MPCA staff have reviewed and approved the SWPPP, the permit can be issued. The applicant receives notice once permit coverage has been granted. </p>
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[[Category:Level 2 - Regulatory/Construction (CSW)]]

Latest revision as of 16:42, 6 January 2023

When must a SWPPP be completed?

In all cases the SWPPP needs to be “completed” prior to submitting the permit coverage application.

When must a SWPPP be sent to the MPCA?

The SWPPP generally does not need to be “submitted” to the MPCA at the time of permit application. For certain projects or common plans of development or sale disturbing 50 acres or more and the site has a discharge point that flows to a special or impaired water within a mile of the site, application must be submitted at least 30 days before the start of construction activity.

Failure to prepare an accurate and complete SWPPP prior to submitting the application invalidates the application and the stormwater discharges associated with construction activity will not be authorized by this permit.

In all cases the SWPPP must be retained on site (see the permit for details) during construction and the owners must retain the SWPPP on file for three years after construction has been completed.

When does a SWPPP need to be sent to the MPCA along with the permit application?

If the following three things are true, then the SWPPP must be submitted to the MPCA for review at least 30 days prior to the start of construction activity:

  1. The site will disturb 50 acres or more (including smaller sites that are part of a common plan of development or sale that will be 50 acres or more total) and
  2. Is within one mile of, and flows to a waterbody and
  3. The waterbody is “a special water listed in Part B of the Construction Stormwater permit. or waters listed as impaired under section 303(d) of the federal Clean Water Act where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment)”.

If any or all of the three items above are not true, then the SWPPP does not have to be approved prior to submittal of the permit coverage application.

What does"...Within one mile of, and flows to a waterbody..." mean?

It means the shortest straight line distance measurement between the point of stormwater discharge from a project construction site to the nearest edge of the water body the stormwater will flow to. This measurement does not follow the meander flow path.

A SWPPP does not need to be submitted for review for sites 50 acres or more if stormwater from the site does not flow to the special or impaired water even though it may be located within a mile of the site. This may be the case if the existing topography is such that stormwater from the site will not ultimately flow into the special or impaired water because the site is not located in the same watershed as the special or impaired water. However, the SWPPP must still be submitted if stormwater from the site will ultimately reach the waterbody even if the stormwater does not flow directly into the impaired or special water located within a mile of the site.

How do we determine if a water body is a special water or one of the impaired waters described in the permit?

This guidance is offered to assist the regulated parties but does not replace nor does following this guidance excuse noncompliance with the permit.

Sites located near impaired waters listed under section 303(d) of the federal Clean Water Act where the identified pollutant(s) or stressor(s) are phosphorus (nutrient eutrophication biological indicators), turbidity, dissolved oxygen, or biotic impairment (fish bioassessment, aquatic plant bioassessment and aquatic macroinvertebrate bioassessment are required to comply with the NPDES/SDS Construction Stormwater permit requirements.

The MPCA website has a Special and Impaired Water Search tool that can be found here. The tool provides a visual way to locate waters within 1 mile of the site and choosing the topographic version can help determine if stormwater will flow to the waterbody. A measuring tool is also available to determine the distance to the water body. The actual 303(d) list of impaired waters can also be found at MPCA’s website. The regulated party is required to make the determination whether stormwater will flow to the water body and that the SWPPP requires review prior to obtaining permit coverage. Additional impaired waters are likely to be added to the list in future years and others might be deleted from the list once the water is no longer impaired. The list is updated every 2 years. If uncertain about the status of particular waterbody, the regulated party may contact the MPCA Stormwater Hotline at 651-757-2119 or 800-657-3804.

I am required to submit a SWPPP, how do I do that?

The SWPPP may be submitted in either paper or digital formats. Digital formats are preferred to conserve on the amount of paper use and for filing efficiency. Smaller size SWPPPs (less than 24MB) can be e-mailed to the MPCA at CSW.pca@state.mn.us. Extremely large SWPPPs such as those with numerous photos, maps, etc. can be submitted to the MPCA on a CD or other digital storage devise. Hardcopies of SWPPPs can also be submitted by U.S. Mail or hand-delivered to the MPCA. If you have questions about submitting your SWPPP call MPCA Stormwater Hotline at 651-757-2119 or 800-657-3804.

The applicant must allow up to 30 days for staff to review the SWPPP. Once MPCA staff have reviewed and approved the SWPPP, the permit can be issued. The applicant receives notice once permit coverage has been granted.

This page was last edited on 6 January 2023, at 16:42.