AQ_F_0100237_20211217_ST_RvwMemo

DIVISION OF AIR QUALITY
December 17, 2021
MEMORANDUM
To: Ray Stewart, P.E. Winston Salem Regional Office
From: Shannon Vogel, Stationary Source Compliance Branch/�Mr
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Subject: Canfor Southern Pine—Graham Plant, Graham,Alamance County, North Carolina
Facility ID 0100237, Air Permit No. 06740T21
Particulate Matter and Carbon Monoxide Emissions Testing of Boiler B-4
Performed by TRC Environmental Corporation on February 2, 2021
Tracking No. 2021-022st
The subject filterable particulate matter(PM) and carbon monoxide (CO) emissions report for Boiler B-4
while combusting green sawdust has been reviewed.The results are acceptable to determine
compliance with the applicable emissions limits. Emissions Source B-4 is a wood fuel-fired boiler
controlled by two multiclones and an electrostatic precipitator ESP-4.The maximum permitted heat
input for B-4 is 57.6 million Btu per hour(mmBtu/hr).The reported average heat input rate during
testing was 47.4 mmBtu based on site-specific f-factors.
40 CFR 63 Subpart DDDDD National Emissions Standards for Hazardous Air Pollutants for Major Sources:
Industrial, Commercial and Institutional Boilers and Process Heaters applies and limits filterable PM to
0.037 pounds per million Btu (Ib/mmBtu) and limits CO emissions to 1500 parts per million corrected to
3%oxygen (ppm@3%02). 40 CFR 60 Subpart Dc Standards of Performance forSmall Industrial-
Commercial-Institutional Steam Generating Units applies and limits filterable PM to 0.03 Ib/mmBtu.The
EPA Method 5 filterable PM and EPA Method 10 CO results are tabulated below.
Pollutant/Parameter Test Results Limit Standard Compliance
Filterable PM 0.0007 Ib/mmBtu 0.03 Ib/mmBtu 60 Subpart Dc Yes
0.037 Ib/mmBtu Yes
Carbon Monoxide 374.9 ppm@3%02 1500 ppm@3%02 63 Subpart DDDDD Yes
Heat Input 47.4 mmBtu/hr 57.6 mmBtu/hr --- ---
Steam Rate 37,360 Ib/hr 41,400 Ib/hr
Rated steam flow
Compliance was demonstrated. If you have any questions regarding the results of this review, please
contact me at [e-mail] or 919-707-8416.
cc: IBEAM Documents-0100237