Construction stormwater

Draft general permit for Construction Activity

The public comment period for the draft permit has ended. For more information on the draft permit or any recent updates visit the 2018 Construction Stormwater Permit page.

Online permitting

This permitting service was redeveloped in October 2015. You will need to create a new account if you used the older version of this service.

For assistance, refer to the fact sheet PDF icon Getting started with MPCA e-Services, visit the e-Services webpage, or email us at

A stabilized construction exit, made of rock keeps mud from vehicle tires off public roadsWhen stormwater drains off a construction site, it carries sediment and other pollutants that harm lakes, streams, and wetlands. The U.S. Environmental Protection Agency estimates that 20 to 150 tons of soil per acre are lost every year to stormwater runoff from construction sites. Controlling erosion can significantly reduce the amount of sediment and other pollutants transported by runoff from construction sites.

To keep Minnesota’s valuable water resources clean, the MPCA issues permits to construction site owners and their operators to prevent stormwater pollution during and after construction.

The National Pollutant Discharge Elimination System (NPDES)/State Disposal System (SDS) Construction Stormwater General Permit authorizes stormwater runoff from construction sites.  This permit was reissued on August 1, 2013, and will expire on August 1, 2018. Check back for updates and opportunities to provide feedback on the next permit, which is scheduled for reissuance in early 2018.

Who needs an NPDES/SDS permit

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

  • One acre or more of soil.
  • Less than one acre of soil if that activity is part of a "larger common plan of development or sale" that is greater than one acre. See: PDF icon Common Plans of Development for more information.
  • Less than one acre of soil, but the MPCA determines that the activity poses a risk to water resources.

How to apply for a NPDES/SDS permit

Owners and operators are both responsible for submitting the permit application. Owners and operators of construction activity must complete several steps before completing a permit application and beginning construction.

Permit and program forms



Instructions and fact sheets

PDF icon Minnesota NPDES/SDS Construction Stormwater General Permit

Permit Number: MN R 100001, issued on August 1, 2013
Reissuance of this permit is scheduled for fall 2017.

PDF icon Construction Stormwater Permit Overview

Online Stormwater Permit Application

The online General Stormwater Permit Application can be completed and submitted electronically. Permit coverage will begin 7 days after submitting a complete application.

For assistance, refer to the fact sheet PDF icon Getting started with MPCA e-Services (p-gen1-17), visit the e-Services webpage, or email us at

If the project is located in a Tribal Reservation, you will need to obtain permit coverage from the U.S. Environmental Protection Agency.

Microsoft Office document icon Notice of Termination/Permit Modification Form

Use this form to terminate permit coverage or to transfer ownership of the entire site or portions of the site (Subdivision Registration)

PDF icon How to Use the Notice of Termination/ Permit Modification Form

Construction Stormwater Permit Search

View the status of your permits online.


Permit archives

2013 permit archives
2008 permit archives

Special waters and impaired waters

NPDES/SDS permits for construction sites with a discharge point that flows towards, and is within one mile (aerial radius measurement) of specially protected and impaired waters require additional controls and conditions as outlined in Appendix A of the General Stormwater Permit.

Icon of impaired waters for map search toolSpecial and impaired waters search

Use this tool to identify if your construction site is within one mile of a special or impaired water.

Compliance guidance

Best management practices (BMP) guidance

Topic-specific guidance

General stormwater management guidance

Minnesota Rules

Links to additional information

  • Report a complaint: Report observed pollution problems to your regional inspector (see map below) or submit a complaint online at the Citizen Complaints page.
  • Technical assistance: Contact your regional inspector (see map below).
  • Permit application questions: Refer to the fact sheet Getting started with MPCA e-Services, visit the e-Services webpage, or email us at
  • General program questions: Contact the Statewide Compliance Coordinator, Brian Green, at 507-206-2610.

Compliance and enforcement staff territories

Construction stormwater staff map