AQ_F_1900015_20140225_CMPL_DOE

'Air
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Pat McCrory Sheila C. Holman John E. Skvarla, III
Governor Director Secretary
February 25, 2014
Mr. Tom Quesenberry
Site Manager
Arauco Panels USA LLC
985 Corinth Road
Moncure, NC 27559
SUBJECT: Deferral of Enforcement—Wet Electrostatic Precipitator (WESP) Test Program
Air Quality Permit No. 03449T43
Arauco Panels USA LLC
Facility ID: 1900015, Moncure, Chatham County
Facility Classification: Title V
Dear Mr. Quesenberry:
This office is in receipt of your February 21, 2014 letter requesting a deferral of
enforcement for testing the WESP while controlling the two dryers (ID 1430 SL Dryer and ID
1420 Core Dryer) and while allowing the "Wellons" Burner (ID No. 3201) to operate
uncontrolled and the associated excess emissions that may occur during the demonstration
program.
The Wellons (combusting hog fuel) and the two dryers (combusting dust) contribute to
the particulate matter(PM) loading on the WESP and therefore contribute to the visible
emissions (VEs) from the WESP. Arauco's intent is to comply with the VE standard and
complete the Special Order by Consent (SOC) by combusting natural gas in the Wellons unit,
which will produce very low PM emissions. The WESP would then be able to control the PM
emissions from the two dryers and comply with the VE standard.
In order to convert the Wellons unit to natural gas, Arauco will need to rebuild the
Wellons NG burner. Prior to investing the capital expenditure on the burner, Arauco wants to
evaluate if the WESP can adequately control the PM loading from just the two dryers
combusting sander dust.
Therefore, DAQ will defer enforcement for the purpose of operating the Wellons unit
uncontrolled, while combusting hog fuel, for a period not to exceed two hours. The deferral will
also cover the expected excess emissions of PM and associated VEs, as well as elevated levels of
formaldehyde from the combustion of wood residuals since the effluent stream will not be
treated in the WESP.
1641 Mail Service Center,Raleigh, North Carolina 27699-1641
217 West Jones Street, Raleigh,North Carolina 27603
Phone:[phone] I Fax:[phone]
Internet:www.ncair.org
An Equal Opportunity\Affirmative Action Employer—Made in part by Recycled Paper

Mr. Tom Quesenberry
February 25, 2014
Page 2
However, the permit deviation of operating the Wellons unit uncontrolled as well as any
associated excess emissions shall be noted on your Title V semi-annual deviation report and your
Annual Compliance Certification.
Please notify Patrick Butler, Raleigh Regional Office Supervisor (919-791-4200) of the
day you intend to perform the test so that he can schedule a staff member to attend.
If you have any questions with reference to this matter, please do not hesitate to contact
Michael Pjetraj, P.E. at [phone].
Sincerely,
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Sheila C. Holman
cc: Patrick Butler—DAQ RRO
Central Files