AQ_F_0100237_20210127_ST_RvwMemo (4)

DIVISION OF AIR QUALITY
January 27,2021
MEMORANDUM
To: Ray Stewart,P.E.,Winston Salem Regional Office
Through: Gary Saunders, Supervisor, Stationary Source Compliance Branch(SSCRI�* ` Z11
From: Shannon Vogel, SSCB 1J&J4A yl
Subject: Canfor Southern Pine-Graham Plant
Graham,Alamance County,North Carolina
Facility ID 0 10023 7,Permit No.06740T22
Total Particulate Matter(PM),Hydrogen Chloride(HCI),Carbon Monoxide(CO)and
Mercury(Hg)Emissions Testing of Boilers B-2,B-3 and B-4
Conducted August 25 through 27,2020 TRC Environmental Corporation
DAQ Tracking No.2020-158st
TRC performed the testing of Boilers B-2,B-3,and B-4 on August 27,26,and 25,2020,respectively.
The test results are acceptable and demonstrate compliance with applicable emissions standards except
for NSPS filterable PM emissions limit for B-4.The B-4 filterable PM test results demonstrated an
exceedance of the 40 CFR 60 Subpart Dc limit.A retest for PM is scheduled for February 2021.
Emissions Source B-2,B-3,and B-4 are three wood-fired boilers,each controlled by two multicyclones
and an electrostatic precipitator.The maximum permitted heat input capacities are 28.7 million Btu per
hour(mmBtu/hr)each for B-2 and B-3 and 57.6 mmBtu/hr for B-4.The report submittal letter reported
rated steam capacities of 20,700 pounds per hour(lb/hr)for B-2 and B-3 and 41,4001b/hr for B-4.
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),HCI to 0.022 lb/mmBtu, CO to 1500 parts per million by volume
corrected to 3%oxygen,and Hg to 5.7F,-6 lb/mmBtu. 15A NCAC 2D.0504 Particulates From Wood
Burning Indirect Heat Exchangers applies to B-2 and B-3 and limits PM to 0.45 lb/mmBtu.40 CFR 60
Subpart Dc Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating
Knits applies to B-4 and limits filterable PM 0.030 lb/mmBtu[or 0.051 lb/mmBtu and 99.8%removal].
TRC performed EPA Method 5 for filterable PM,EPA Method 10 for CO,EPA Method 26A for HCl,
and EPA Method 30B for Ilg.
The B-4 filterable PM test result was 0.034 lb/mmBtu which exceeds the 60 Subpart Dc emission limit of
0.0301b/mmBtu and demonstrated compliance with.the 63 Subpart DDDDD emission limit of 0.037
lb/mmBtu.Canfor reported operating conditions including heat input rate during testing, steam flow rate,
opacity and oxygen trim.The test results are accepted as presented in the following tables.
Compliance was demonstrated for HCI, CO,and IIg emissions limits for all three boilers.Compliance
with the 2D .0504 PM emission limit was demonstrated for B-2 and B-3. Compliance with 63 Subpart
DDDDD was demonstrated for all three boilers.An exceedance of the 40 CFR 60 Subpart Dc emissions
limit was demonstrated for Boiler B-4. If you have any questions regarding the results of this review,
please contact me at 919-707-8416 or shannon. -ogel_a ncdenr.gov.

Ray Stewart
January 27, 2021
Tracking No. 2020-251 st
Page 2
Boiler/ pollutant Test Results Emissions Limit Standard Compliance
Date
Filterable PM 0.0028 lb/mmBtu 0.45 lb/mmBtu 2D.0504 Yes
0.037 lb/mmBtu Yes
8/27/20 HCl <3.9]E-5 lb/mmBtu 0.022 lb/mmBtu 63 Subpart Yes
/2 CO 358.7 pmvd 3%02 1500 mvd 3%02 DDDDD Yes
Hg 2.2E-7 lb/mmBtu 5.7 E-6 lb/mmBtu Yes
Filterable PM 0.016 lb/mmBtu 0.45 lb/mmBtu 213.0504 Yes
B 3 0.037 lb/mmBtu Yes
8/26/20 HCl <4.1 E-5 lb/mmBtu 0.022 lb/mmBtu 63 Subpart Yes
CO 466.6 ppmvd 3%02 1500 mvd 3%02 DDDDD Yes
Hg 2.5E-71b/mmBtu 5.7E-6lb/mmBtu Yes
Filterable PM 0.034 lb/mmBtu 0.030 lb/mmBtu 60 Subpart De No
0.037 Ib/mmBtu Yes
8/2 HCl <4.3E-5 lb/mmBtu 0.022 lb/mmBtu 63 Subpart Yes
/25/20 CO 860.6 ppmvd 3%02 1500 ppmvd 3%02 DDDDD Yes
Hg 2.4E-7lb/mmBtu 5.7E-6lb/mmBtu Yes
Table 2: Test Conditions as reported by Canfor and TRC
Heat Input(M19) F-factor Steam Flow o Oxygen Trim,
Boiler/Run mmBtu/hr (fuel analysis) lb/hr Opacity, /o
Run 1 18.2 10094 17,930 1.45 5.5
Run 2 18.3 9943 18,196 1.44 5.3
B-2 Run 3 17.5 10248 18,169 1.43 5.6
Average 18.0 mmBtu/hr 1 10095 scf/mmBtu 18,098 lb/hr 1.44% 5.5%
Operating Limit 20,397 lb/hr 10% 5.3%
Run 1 24.3 10300 18,787 1.11 5.5
Run 2 25.1 10146 18,413 1.17 5.4
B-3 Run 3 23.3 10114 17,219 0.91 5.6
Average 24.2 mmBtu/hr 10187 scf/mmBtu 18,140 lb/hr 1.06% 5.5%
Operating Limit 20,8531b/hr 10% 5.3%
Run 1 50.5 10109 37,411 0.72 6.1
Run 2 52.4 9927 37,250 1.18 5.9
B-4 Run 3 49.4 10226 36,366 1.22 5.8
Average 50.7 mm$tu/hr 10087 scFmmBtu 37,009 lb/hr 1.04% 5.9%
Operating Limit 41,2941b/hr 10% 5.7%
cc: IBEAM Documents 0100237