Multi-sector general permit (MSGP) for Stormwater Discharges

On January 15, 2021, the EPA issued the final MSGP and proceeded to host two public webinars that covered: program basics, structure and requirements of the new permit, and changes from the 2015 MSGP.  The webinar can be found here. On January 25, 2022, EPA  published a Federal Register Notice to seek public input on the 29 NPDES Industrial Stormwater Fact Sheet Series currently posted online; this comment period closed on March 28, 2022. EPA is particularly focused on updating: common activities, pollutant sources, and associated pollutants at facilities in each sector; and SCMs or best management practices (BMPs), including source control and good housekeeping/pollution prevention measures for potential pollutant sources. The Industrial Stormwater Fact Sheet Series for Primary Metals can be found here. Jeff Longsworth of Barnes and Thornburg and the Federal Stormwater Association wrote an article for Modern Casting on the MSGP and discusses the challenges and opportunities to influence stormwater permits, the article can be found here.