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ELIZABETH S.BISER
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MICHAEL ABRACZINSKAS NORTH CAROLINA
Director Environmental Quality
July 9, 2021
Blake Arnett, Plant Manager
3M Pittsboro Industrial Mineral Products
4191 Highway 87 South
Moncure, NC 27559
Subject: EPA Method 9 Testing on Backup Feed Conveyor
3M Pittsboro [ndustrial Mineral Products
Moncure, Chatham County, North Carolina
Facility ID: 1900104; Current Air Permit No. 09006T06; Fee Class: Title V
Tracking Number: 2021-178ST
Test Conducted: June 2, 2021
Dear Mr. Arnett:
On June 29, 2021, this office received the results of EPA Method 9 tests performed on June 2,
2021 at the subject facility. The EPA Method 9 test results were found to be acceptable and
demonstrate that the Backup Feed Conveyor was in compliance with the applicable visible
emission standards during the testing period.
The Backup Feed Conveyor is subject to 15A NCAC 02D .0524: NSPS 40 CFR PART 60
SUBPART 000—Standards of Performance.for Nonmetallic Mineral Processing Plants. As
required by Subpart 000, the Backup Feed Conveyor is limited to 10 percent opacity(as
determined by the average of five 6-minute averages. The EPA Method 9 test results submitted
indicated that the average opacity during the testing period did not exceed 0%, thus demonstrating
compliance.
If you have any questions concerning this matter, please contact Dawn Reddix, Environmental
Engineer, or me at [phone].
Sincerely,
GW
William T. Wike, Jr.
Compliance Supervisor
Division of Air Quality, Raleigh Regional Office
cc: RRO Files
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Raleigh Regional Office 3800 Barrett Drive Raleigh.North Carolina 2760Q
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