MS4 Annual Report

The Municipal Separate Storm Sewer System (MS4) Annual Report must be submitted to the MPCA by June 30th of each calendar year, as required by PART IV.B of the MS4 General Permit.

In 2014, the MS4 Annual Report was reformatted to be an online questionnaire, accessible by a login username and password. You must click the 'Submit' button on the final page of the questionnaire to submit your responses to the MPCA. After you submit your MS4 Annual Report, please allow up to three business days to receive a confirmation email from the MPCA.

MS4 Annual Report for 2020

The MPCA plans to release the Annual Report in January 2021. At this time, the login information will be sent to each MS4 General Contact. This email will be from the sender, "MPCA MS4 Permit Program" (mnit@webhost.snapsurveys.com), with the subject line, "MS4 Annual Report for 2020 - Login Information." Click the link in the email to access the login page for the MS4 Annual Report for 2020. If you are unable to find your login information, contact one of these MS4 staff.

Permittees may access the MS4 Annual Report for 2020 login webpage here.

If you have been assigned a Waste Load Allocation (WLA) in a Total Maximum Daily Load (TMDL) that was approved by the USEPA prior to August 1, 2013, and were not meeting that WLA(s) at the time of your permit application, you must also fill out your TMDL Annual Report Form and upload it to the online questionnaire when prompted. Guidance for the TMDL Annual Report Form is available here.

View all possible annual report questions

For your convenience, you may view a complete list of questions for the MS4 Annual Report for 2020. As you complete the online questionnaire (available in January 2021), you may not see all of the questions listed here.

Saving a copy of your annual report

See the page Guidance for saving MS4 annual reports

Questions about the annual report?

Contact Cole Landgraf (cole.landgraf@state.mn.us, 651-757-2880).