AQ_F_0100237_20220714_ST_RvwMemo

DIVISION OF AIR QUALITY
July 14,2022
MEMORANDUM
To: Ray Stewart,P.E.,Winston-Salem Regional Office
From: Taylor Fort, Stationary Source Compliance Branch -dt
Subject: Canfor Southern Pine—Graham Plant
Graham,Alamance County,North Carolina
Facility ID 0100237,Air Quality Permit No. 06740T20
Particulate Matter and Carbon Monoxide Emissions Testing of Boiler B-4
Conducted March 9,2022,by TRC Environmental Corporation(TRC)
DAQ Tracking No. 2022-012ST
TRC performed EPA Method 5 for filterable particulate matter(PM)and EPA Method 10 for carbon
monoxide(CO)emissions from Boiler B-4. The emissions test results demonstrate compliance with
applicable regulations for all pollutants.
Emissions source B-4 is a wood fuel-fired boiler controlled by two multicyclones and an electrostatic
precipitator ESP-4. The maximum permitted heat input for B-4 is 57.6 million Btu per hour(mmBtu/hr).
40 CFR 63 Subpart DDDDD National Emissions Standards for Hazardous Air Pollutants for Industrial,
Commercial, and Institutional Boilers and Process Heaters applies and limits filterable PM to
0.037 pounds per million Btu(lb/mmBtu)and limits CO emissions to 1500 parts per million by volume
on a dry basis corrected to 3%oxygen(ppmvd@3%02).40 CFR 60 Subpart Dc Standards of
Performance for Small Industrial-Commercial-Institutional Steam Generating Units applies and limits
filterable PM to 0.03 lb/mmBtu. The emissions test results are summarized in the following table.
Pollutant Test Result Emissions Limit Regulation Compliance
0.03 lb/mmBtu 60 Subpart Dc
Filterable PM 0.0045 lb/mmBtu Yes
0.037 lb/mmBtu 63 Subpart DDDDD
CO 551.5 ppmvd@3%02 1500 ppmvd@3%02 63 Subpart DDDDD Yes
The average heat input rate during testing was 51.4 mmBtu/hr(89%of maximum). This test rate is
acceptable. The emissions test results demonstrate compliance with applicable regulations. If there are
any questions regarding this review,please contact me at taylonfortkncdenngov.
cc: IBEAM Documents - Ol 00237