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4/16/2026 <br />8 <br />MS4 Program <br />UPDATES <br />o The MPCA lists the following notable changes in the 2026 permit: <br />•General changes include reorganizing the location of specific permit language, defining <br />frequencies (e.g., education, training activities), adding and revising permit definitions, and <br />more to further meet the EPA remand rule and have clear, specific, and measurable <br />requirements. <br />•Associated requirements in MCM 3 and MCM 6 for the prohibition of PFAS-containing <br />firefighting foams and pesticides. <br />•A newly added Section 23 provides permittees an option to develop a water quality trading <br />program for purposes of making progress toward achieving an applicable WLA(s). <br />THANK YOU | Comments / Questions <br />Emily Jennings <br />651.302.7669 <br />ejennings@sehinc.com <br />Justin Gese <br />952.912.2612 <br />jgese@sehinc.com <br />15 <br />16