AIR QUALITY PERMIT NOTICE Notice of Application Notice is given that Armstrong World Industries, Inc. has applied to the West Virginia Department of Environmental Protection, Division of Air Quality, for a Class II Administrative Update to the Air Permit for a Slag Wool Manufacturing Plant located on 141 Sensenich Drive, near Millwood, in Jackson County, West Virginia. The latitude and longitude coordinates are: Latitude 38.9092, Longitude 81.8379. The applicant estimates the increased potential to discharge the following Regulated Air Pollutants will be: Particulate Matter – 0.63 tpy increase. Startup of operation is planned to begin on or about the 1st day of May, 2026. Written comments will be received by the West Virginia Department of Environmental Protection, Division of Air Quality, 601 57th Street, SE, Charleston, WV 25304, for at least 30 calendar days from the date of publication of this notice. Written comments will also be received via email at [email protected]. Any questions regarding this permit application should be directed to the DAQ at (304) 926-0499, extension 41281, during normal business hours. Dated this the 7th day of April, 2026. By: Armstrong World Industries, Inc. Todd Harrison Plant Manager P.O. Box 220 Millwood, WV 25262
ARMSTRONG WORLD INDUSTRIES, INC
PO BOX 220
MILLWOOD
WV
25262
ID: 1504411