COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION NOTICE OF INTENT TO ISSUE AIR QUALITY PLAN APPROVAL PERMIT PA-04-00702E

COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION NOTICE OF INTENT TO ISSUE AIR QUALITY PLAN APPROVAL PERMIT PA-04-00702E 04-00702E: United States Gypsum Company (1 Woodlawn Road, Aliquippa, PA 15001) for the authorization of an increase in volatile organic compounds and nitrogen oxides emissions at the Kiln/Sealed End Burner existing source at the Aliquippa Facility (1 Woodlawn Road, Aliquippa, PA 15001). Notice is hereby given in accordance with 25 Pa Code §§127.44-127.46 that the Pennsylvania Department of Environmental Protection (Department) intends to issue an Air Quality Plan Approval: PA-04-00016K for an increase in volatile organic compounds and nitrogen oxides emissions that are associated with the existing Kiln/Sealed End Burner Source. The facility is located in Aliquippa Borough, Beaver County. Facility wide potential emissions, due to the change covered under this plan approval, will increase nitrogen oxide emissions from 87.0 tons per year (tpy) to 94.8 tpy, and volatile organic compound emissions from 44.0 tpy to 45.9 tpy. This plan approval has been conditioned to ensure compliance with all applicable rules including work practices, monitoring, recordkeeping, and reporting conditions. Once compliance with the plan approval is demonstrated, the applicant will subsequently submit an application to modify the existing Title V Operating Permit for this facility. The plan approval application, the Department's Air Quality Review Memorandum, and the proposed Air Quality Plan Approval for this project are available for review by any interested party at the Pennsylvania Department of Environmental Protection, 400 Waterfront Drive, Pittsburgh, PA 15222; chrbake@pa.gov; or fax 412-442-4194. Each protest or set of written comments must contain the name, address and telephone number of the person submitting the comments, identification of the proposed Plan Approval (PA-04-00702E) and a concise statement of the objections to the plan approval and the relevant facts upon which the objections are based. All comments must be received prior to the close of 30 business days after the date of this publication. For additional information, you may contact Christopher Baker at 412-442-4044. A public hearing may be held, if the Department, in its discretion, decides that such a hearing is warranted based on the information received. All persons submitting comments or requesting a hearing will be notified of the decision to hold a hearing by publication in the newspaper or by the Pennsylvania Bulletin, or by telephone, where the Department determines such notification is sufficient. Written comments or requests for a public hearing should be directed to Mark R. Gorog, P.E., Regional Program Manager, Pennsylvania Department of Environmental Protection, 400 Waterfront Drive, Pittsburgh, PA 15222 or by email to mgorog@pa.gov. All comments must be received prior to the close of business 30 days after the date of this publication. May 26, 27, 28 2026 LSOM0523247