AQ_F_1900015_20180808_ST_RvwMemo (4)

DIVISION OF AIR QUALITY
August 8,2018
MEMORANDUM
To: Ray Stewart,P.E.,Raleigh Regional Office Supervisor
From: Brent W. Hall, Stationary Source Compliance Branch(SSCB&#-
Subject: Arauco Panels USA, LLC
Moncure,Chatham County,North Carolina
Facility ID 19-00015,Air Permit No. 03449T49
Formaldehyde and Methanol Emissions Testing of Biofilter CD-18
By Integrity Air Monitoring, Inc. June 13, 2018
DAQ Tracking No.2018-237ST
Integrity Air Monitoring,Inc.performed National Council of the Paper Industry for Air and Stream
Improvement(NCASI) Chilled Impinger Method for use at Wood Products Mills(Cl/WP)-98.01 on the
biofilter CD-18 to determine formaldehyde and methanol destruction and removal efficiency(DRE).
Testing was performed simultaneously at the inlet and outlet of CD-18. The emissions test results
demonstrate compliance with the applicable regulations.
The medium density fiberboard(MDF)process is comprised of refiner ES-01, energy system ES-02-A,
two stage dryer ES-02-13,natural gas-fired dryer burners ES-02-C-1 and ES-02-13,MDF board cooler
ES-06-13,and MDF press and press hall ES-16. These processes vent to the biofilter CD-18.
40 CFR 63 Subpart DDDD NESHAPS:Plywood and Composite Wood Products applies and specifies that
formaldehyde or methanol emissions must be reduced by 90 percent. A summary of the emissions test
results is shown in the table below.
Pollutant Inlet Rate Outlet Rate DRE Limit' ReRulation Compliance
Formaldehyde 35.7 lb/hr 1.15 lb/hr 96.8% 0 63 Subpart
Methanol 69.3 lb/hr 55.71b/hr 19.6% 90/o DDDD Yes
' Limit applies to only one of the pollutants
The refiner averaged 26.35 bone dry metric tons per hour(BDMT/hr)during testing. The average
throughput for the press during testing was 3 8.3 8 cubic meters per hour(m3/hr)and the biofilter average
temperature was 143.3 'F. The emissions test results demonstrate compliance with the requirements of 63
Subpart DDDD. If there are any questions regarding this review,please contact me at(919)707-8427 or
Brent.Hallru nederint ov.
Cc: Central Files, Chatham County
MEAM Documents- 1900015