PUBLIC NOTICE LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY (LDEQ) EXXON MOBIL CORPORATION BATON ROUGE REFINERY CLASS III PERMIT MODIFICATION Exxon Mobil Corporation Baton Rouge Refinery (LDEQ AI No. 2638), located at 4045 Scenic Highway in Baton Rouge, East Baton Rouge Parish, Louisiana, is notifying you of a Class III Permit Modification to its Hazardous Waste Permit LAD 062 662 887-PC-RN-2. As required by the Louisiana Department of Environmental Quality (LDEQ) regulations, Exxon Mobil is mailing this notice to everyone who has requested that they be notified of hazardous waste-related activities at the Baton Rouge Refinery and is on the facility mailing list maintained and provided by the LDEQ. Exxon Mobil has submitted a notification of a Class III Permit Modification to the LDEQ to establish a corrective action program within the ongoing post-closure monitoring program and update the post closure inspection schedule plan to incorporate closed RCRA Solid Waste Management Units. Pursuant to LAC 33:V.321.C.3.e, a 60-day public comment period will begin on the date of publication of this notice in a local newspaper of general circulation (scheduled for on or about October 10, 2025). During the public comment period, questions or comments may be communicated to the contacts listed below. Written comments, written requests for a public hearing, or written requests for notification of the final decision regarding this permit action may be submitted to the LDEQ contact (Mr. Rob Thomas, Administrator) at Waste Permits Division, P.O. Box 4313, Baton Rouge, LA 70821-4313. Exxon Mobil Corporation will host the public meeting at the East Baton Rouge Parish Library – Delmont Gardens Branch at 3351 Lorraine St, Baton Rouge, LA, beginning at 3:00 pm on October 28, 2025. Representatives of Exxon Mobil Corporation will be present to answer questions to discuss the proposed modification. The permittee’s compliance history during the life of the permit being modified is available from the department contact person. A copy of the Class III Permit Modification is available for review and copying at the LDEQ Public Records Center located at 602 North 5th Street, Baton Rouge, LA 70802. Additionally, a copy of the proposed modification can be viewed at the East Baton Rouge Parish Library – Delmont Gardens Branch. For additional information, contact: Company: Mail: Katherine Weise, ExxonMobil Environmental and Property Solutions Address: 4999 Scenic Highway, CNO 375, Baton Rouge, LA 70805 Telephone: 225-954-9202 Email: katherine.e.weise@exxo nmobil.com LDEQ: Mail: Rob Thomas, Administrator LDEQ, Waste Permits Division, P.O. Box 4313, Baton Rouge, LA 70821-4313 Telephone: 225-219-3070 email: Rob.Thomas@LA.GOV 162070 Oct. 11, 1t $377.61