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When stormwater drains off a construction site, it carries sediment and other pollutants that harm lakes, streams and wetlands. According to the 1996 National Water Quality Inventory, stormwater runoff is a leading source of water pollution. The U.S. Environmental Protection Agency (EPA) estimates that 20 to 150 tons of soil per acre is lost every year to stormwater runoff from construction sites.
 
When stormwater drains off a construction site, it carries sediment and other pollutants that harm lakes, streams and wetlands. According to the 1996 National Water Quality Inventory, stormwater runoff is a leading source of water pollution. The U.S. Environmental Protection Agency (EPA) estimates that 20 to 150 tons of soil per acre is lost every year to stormwater runoff from construction sites.
  
Many studies indicate that controlling erosion can significantly reduce the amount of sedimentation and other pollutants transported by runoff from construction sites. To keep Minnesota’s valuable water resources clean the Minnesota Pollution Control Agency (MPCA) issues permits to construction site owners and their operators to prevent stormwater pollution during and after construction.
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Many studies indicate that controlling erosion can significantly reduce the amount of <span title="Sedimentation is the process by which solids are removed from the water column by settling. Sedimentation practices include dry ponds, wet ponds, wet vaults, and other devices."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_sedimentation_Best_Management_Practices '''sedimentation''']</span> and other pollutants transported by runoff from construction sites. To keep Minnesota’s valuable water resources clean the Minnesota Pollution Control Agency (MPCA) issues permits to construction site owners and their operators to prevent stormwater pollution during and after construction.
  
Site owners and their construction operators must sign off on a National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) [https://stormwater.pca.state.mn.us/index.php?title=2018_Minnesota_Construction_Stormwater_Permit General Stormwater Permit for Construction Activity (MN R100001)] (Construction Stormwater General Permit). As part of the application for this legal document, the owner and operator must create a stormwater pollution prevention plan (SWPPP) that explains how they will control stormwater.
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Site owners and their construction operators must sign off on a National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_program#Construction_Stormwater_permit General Stormwater Permit for Construction Activity (MN R100001)] (Construction Stormwater General Permit). As part of the application for this legal document, the owner and operator must create a stormwater pollution prevention plan (SWPPP) that explains how they will control stormwater.
  
 
Once the SWPPP is complete, applicants must apply to receive permit coverage.
 
Once the SWPPP is complete, applicants must apply to receive permit coverage.
  
 
==Who Needs an NPDES/SDS Permit==
 
==Who Needs an NPDES/SDS Permit==
You need an NPDES/SDS permit if you are the owner or operator for any construction activity disturbing:
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You need an NPDES/SDS permit if you are the owner or operator for any construction activity
*that results in land disturbance of equal to or greater than one acre or  
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*that results in land disturbance of equal to or greater than one acre, or
*a common plan of development or sale that disturbs greater than one acre  
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*that is part of a common plan of development or sale that disturbs greater than one acre, or
*Less than one acre of soil, but the MPCA determines that the activity poses a risk to water resources.
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*that is less than one acre of soil but for which the MPCA determines the activity poses a risk to water resources.
  
 
Construction activity does not include a disturbance to the land of less than five (5) acres for the purpose of routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the facility.
 
Construction activity does not include a disturbance to the land of less than five (5) acres for the purpose of routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the facility.
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==Steps to permit coverage==
 
==Steps to permit coverage==
After determining if permit is required but prior to applying for permit coverage, a SWPPP must be completed. There are several steps that are required.
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After determining if permit coverage is required but prior to applying for permit coverage, a SWPPP must be completed. There are several steps that are required.
  
Since complying with the terms of the Construction Stormwater general permit is required the first step is to read and understand the [https://stormwater.pca.state.mn.us/index.php?title=2018_Minnesota_Construction_Stormwater_Permit General Stormwater Permit for Construction Activity (MN R100001)]
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Since complying with the terms of the Construction Stormwater general permit is required the first step is to read and understand the [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_program#Construction_Stormwater_permit General Stormwater Permit for Construction Activity (MN R100001)]
  
 
===Create a Stormwater Pollution Prevention Plan (SWPPP)===
 
===Create a Stormwater Pollution Prevention Plan (SWPPP)===
The owner must develop a [http://www.pca.state.mn.us/index.php/view-document.html?gid=7423 Stormwater Pollution Prevention Plan (SWPPP)]. The SWPPP shall be completed prior to submitting any permit application and prior to conducting any construction activity by any required Permittee(s)
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The owner must develop a Stormwater Pollution Prevention Plan (SWPPP). The SWPPP shall be completed prior to submitting any permit application and prior to conducting any construction activity by any required Permittee(s)
  
The SWPPP must include the following:
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The SWPPP must include the following.
#A description of the construction activity:
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#A description of the construction activity
#Knowledgeable person/chain of responsibility:
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#Knowledgeable person/chain of responsibility
#Training documentation:
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#Training documentation
#Designs, calculations, and narrative:
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#Designs, calculations, and narrative
#SWPPP components:
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#SWPPP components
##Location and type of all temporary and permanent erosion prevention and sediment control BMPs:.
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##Location and type of all temporary and permanent <span title="Practices designed to prevent or minimize erosion> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices '''erosion protection''']</span> and <span title="practices designed to prevent or minimize loss of eroded soil at a site"> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices '''sediment control''']</span> BMPs
##Quantities:
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##Quantities
##Impervious surface:
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##Impervious surface
##Site map:
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##Site map
##Locations of areas not to be disturbed:
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##Locations of areas not to be disturbed
##Construction phasing:
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##Construction phasing
##Maps of surface waters and wetlands:
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##Maps of surface waters and wetlands
##Final stabilization:
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##Final stabilization
##Stormwater control design factors:
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##Stormwater control design factors
##Soil Management:
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##Soil Management
##Maintenance plan:
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##Maintenance plan
##Chemical treatments:
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##Chemical treatments
##Documentation of infeasibility:
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##Documentation of infeasibility
#Stormwater pollution mitigation measures identified in environmental review or other required review:
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#Stormwater pollution mitigation measures identified in environmental review or other required review
#Karst areas:
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#<span title="Karst is a landscape formed by the dissolution of a layer or layers of soluble bedrock. The bedrock is usually carbonate rock such as limestone or dolomite but the dissolution has also been documented in weathering resistant rock, such as quartz. The dissolution of the rocks occurs due to the reaction of the rock with acidic water. Rainfall is already slightly acidic due to the absorption of carbon dioxide (CO2), and becomes more so as it passes through the subsurface and picks up even more CO2. Cracks and fissures form as the runoff passes through the subsurface and reacts with the rocks. These cracks and fissures grow, creating larger passages, caves, and may even form sinkholes as more and more acidic water infiltrates into the subsurface."> [https://stormwater.pca.state.mn.us/index.php?title=Karst '''Karst''']</span> areas
#Impaired Waters and Total Maximum Daily Loads (TMDLs):
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#<span title="Impaired waters are bodies of water that exceed the limits of one or more parameters for surface water quality"> [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_program#Special_Waters_and_Impaired_Waters '''Impaired waters''']</span> and <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 loads''']</span> (TMDLs)
  
 
===Construction Stormwater Permit Application===
 
===Construction Stormwater Permit Application===
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'''A project is NOT eligible for online processing and must complete a paper form if''':
 
'''A project is NOT eligible for online processing and must complete a paper form if''':
*The project will disturb 50 or more acres AND has a discharge point within one mile of an impaired or [[Special Waters and Impaired Waters|special water]] listed in [[APPENDIX A|Appendix A]] of the construction stormwater general permit AND the discharge flows to these waters. Applications are due 30-days before the anticipated construction start date.
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*The project will disturb 50 or more acres AND has a discharge point within one mile of an impaired or [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_program#Special_Waters_and_Impaired_Waters special water] of the construction stormwater general permit AND the discharge flows to these waters. Applications are due 30-days before the anticipated construction start date.
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<noinclude>
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[[Category:Level 2 - Regulatory/Construction (CSW)]]
 +
</noinclude>

Latest revision as of 17:11, 6 January 2023

When stormwater drains off a construction site, it carries sediment and other pollutants that harm lakes, streams and wetlands. According to the 1996 National Water Quality Inventory, stormwater runoff is a leading source of water pollution. The U.S. Environmental Protection Agency (EPA) estimates that 20 to 150 tons of soil per acre is lost every year to stormwater runoff from construction sites.

Many studies indicate that controlling erosion can significantly reduce the amount of sedimentation and other pollutants transported by runoff from construction sites. To keep Minnesota’s valuable water resources clean the Minnesota Pollution Control Agency (MPCA) issues permits to construction site owners and their operators to prevent stormwater pollution during and after construction.

Site owners and their construction operators must sign off on a National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) General Stormwater Permit for Construction Activity (MN R100001) (Construction Stormwater General Permit). As part of the application for this legal document, the owner and operator must create a stormwater pollution prevention plan (SWPPP) that explains how they will control stormwater.

Once the SWPPP is complete, applicants must apply to receive permit coverage.

Who Needs an NPDES/SDS Permit

You need an NPDES/SDS permit if you are the owner or operator for any construction activity

  • that results in land disturbance of equal to or greater than one acre, or
  • that is part of a common plan of development or sale that disturbs greater than one acre, or
  • that is less than one acre of soil but for which the MPCA determines the activity poses a risk to water resources.

Construction activity does not include a disturbance to the land of less than five (5) acres for the purpose of routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the facility.

Most construction activities are covered by the general NPDES stormwater permit for construction activity, but some construction sites need individual permit coverage. Owners and operators are both responsible for submitting the permit application.

If the project is owned by a Tribal unit you must obtain permit coverage from the US Environmental Protection Agency instead of the Minnesota Pollution Control Agency.

Steps to permit coverage

After determining if permit coverage is required but prior to applying for permit coverage, a SWPPP must be completed. There are several steps that are required.

Since complying with the terms of the Construction Stormwater general permit is required the first step is to read and understand the General Stormwater Permit for Construction Activity (MN R100001)

Create a Stormwater Pollution Prevention Plan (SWPPP)

The owner must develop a Stormwater Pollution Prevention Plan (SWPPP). The SWPPP shall be completed prior to submitting any permit application and prior to conducting any construction activity by any required Permittee(s)

The SWPPP must include the following.

  1. A description of the construction activity
  2. Knowledgeable person/chain of responsibility
  3. Training documentation
  4. Designs, calculations, and narrative
  5. SWPPP components
    1. Location and type of all temporary and permanent erosion protection and sediment control BMPs
    2. Quantities
    3. Impervious surface
    4. Site map
    5. Locations of areas not to be disturbed
    6. Construction phasing
    7. Maps of surface waters and wetlands
    8. Final stabilization
    9. Stormwater control design factors
    10. Soil Management
    11. Maintenance plan
    12. Chemical treatments
    13. Documentation of infeasibility
  6. Stormwater pollution mitigation measures identified in environmental review or other required review
  7. Karst areas
  8. Impaired waters and total maximum daily loads (TMDLs)

Construction Stormwater Permit Application

Click here to log into the e-Services then once logged in, click on Construction Stormwater General Permit Application

Visa, Master cards or checks are accepted for the $400 fee payment.

A project is NOT eligible for online processing and must complete a paper form if:

  • The project will disturb 50 or more acres AND has a discharge point within one mile of an impaired or special water of the construction stormwater general permit AND the discharge flows to these waters. Applications are due 30-days before the anticipated construction start date.

This page was last edited on 6 January 2023, at 17:11.