Document p26RRDw3Q5LMDvmMJq3rymza

Message From: Tollerson, Brad [btollerson@otpco.com ] Sent: 3/31/2025 9:50:16 PM To: AirAction [AirAction@epa.gov] Subject: Presidential Exemption: "National Emission Standards for Hazardous Air Pollutants: Coal- and OH-Fired Electric Utility Steam Generating Units Review of the Residual Risk and Technology Review" (89 FR 38508; May 7, 2024) (MATS Rule): Big Stone Plant, SD Attachments:Big Stone MATS Presidential Exemption Request 3-31-25.pdf Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Flag: Follow up Please see attached request on behalf of Big Stone Plant in South Dakota. Bradley E. Tollerson Vice President, Energy Supply Otter Tail Power Company Designated Representative, Big Stone Plant Office: 218-739-8865 Mobile: 218-770-9276 Sierra Club FOIA 2025-EPA-04883 ED_018388_00000189-00001 SC_EVERSPLIT0020658