AQ_F_0100237_20191127_ST_RvwMemo (4)

DIVISION OF AIR QUALITY
November 27,2019
MEMORANDUM
To: Lisa Edwards,P.E.,Winston Salem Regional Office
Through: Gary Saunders, Supervisor for Stationary Source Compliance Branch,p rY P
From: Shannon Vogel, SSCB,4h&wmVV
Subject: Canfor Southern Pine—Graham Planet
Graham,Alamance County,North Carolina
Facility ID 0100237,Permit No. 06740T22
Total Particulate Matter,Hydrogen Chloride,Mercury and Carbon Monoxide Emissions
Testing of Boilers B-2,B-3 and B-4 Performed September 10 through 12,2019 by
TRC Environmental Corporation
Tracking No.2019-129st
TRC performed the testing of Boilers B-2,B-3, and B-4 on September 12, 11, and 10,2019,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 emissions test results
demonstrated an exceedance of the 40 FCR 60 Subpart Dc emissions limit.
B-2 and B-3 are wood fuel-fired boilers with"maximum heat input capacity"of 28.7 million Btu per hour
(mmBtu), each.Each boiler is controlled by two multicyclones(MC-2,MC-2A and MC-3,MC-3A,
respectively)and an electrostatic precipitator(ESP-2 and ESP-3,respectively).B-4 is a 57.6 mmBtu/hr
wood fired boiler controlled by two multicyclones(MC-4 and MC-4A)and an ESP(ESP-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 the emissions of filterable
particulate matter(PM)to 0.037 pounds per million Btu(lb/mmBtu),hydrogen chloride(HCl)to
0.022 lb/mmBtu,carbon monoxide(CO)to 1500 parts per million by volume corrected to 3%oxygen
(ppmvd@3%02), and mercury(Hg)to 5.7E-61b/mmBtu. 15A NCAC 2D .0504 Particulates From Wood
Burning Indirect Heat Exchangers applies to B-2 and B-3 and limits PM to 0.451b/mmBtu.40 CFR 60
Subpart Dc Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating
Units applies to B-4 and limits filterable PM 0.031b/mmBtu.
The B-4 filterable PM test result was 0.0441b/mmBtu which exceeds both the 60 Subpart Dc emission
limit of 0.03 lb/mmBtu and the 63 Subpart DDDDD emission limit of 0.037 lb/mmBtu.However,
§63.7422 specifies that"if you have more than one existing boiler... at your facility,you may
demonstrate compliance by emissions averaging,if you averaged emissions are not more that 90 percent
of the applicable emission limit." The weighted average emission rate for Boilers B-2,B-3,and B-4 is
0.34 lb/mmBtu as calculated in accordance with Equation 1 a of 63 Subpart DDDDD. The test results are
presented in Table 1. Canfor reported operating conditions including heat input rate during testing, steam
flow rate, opacity and oxygen trim(Table 2).

Lisa Edwards. P.E.
November 27, 2019
Tracking No. 2019-129st
Page 2
Trackin No. 2019-129st Emissions Testin - Se tember 2019
Boiler/ pollutant Test Results Emissions Limit Standard Compliance
Date
Filterable PM 0.00478 lb/mmBtu 0.45 lb/mmBtu 2D.0504 Yes
B-2 0.037 lb/mmBtu Yes
9/12/19 HCl 3.9E-5 lb/mmBtu 0.022lb/mmBtu 63 Subpart Yes
CO 503 nnmvdw3%02 1500 mvd 3%02 DDDDD Yes
Hg 2.83E-7 lb/mmBtu 5.7 E-6 lb/mmBtu Yes
Filterable PM 0.031 lb/mmBtu 0.45 lb/mmBtu 2D.0504 Yes
B-3 0.037 lb/mmBtu Yes
9/11/19 HCl 3.4E-5 lb/mmBtu 0.022 lb/mmBtu 63 Subpart Yes
CO 1006 mvd 3%0z 1500 ppmvdp,3%02 DDDDD Yes
--lis 2.96E-7lb/mmBtu 5.7E-6lb/mmBtu Yes
Filterable PM 0.0447 lb/mmBtu 0.03 lb/mmBtu 60 Subpart Dc No
B-4 0.037 lb/mmBtu Yes'
9/10/19 HCl 3.7E-5 lb/mmBtu 0.022lb/mmBtu 63 Subpart
CO 506 mvd a.3%02 1500 mvd@3%02 DDDDD
Hg 4.5 1 E-7 lb/mmBtu 5.7E-6lb/mmBtu
Note 1. Boilers B-2,B-3,and B-4 63 Sub art DDDDD PM Compliance 63.7522 Equation la
B-2 Filterable PM
B-3 Weighted Average 0.034 lb/mmBtu 0.037 lb/mmBtu 63 Subpart Yes
B-4 [Equation 1 a] DDDDD
Table 2: Test Conditions as reported by Canfor October 29,2019 cover letter
Emission Source/Run Heat Input(M19) Steam Flow Opacity, % Oxygen Trim, %
mmBtu/hr lb/hr
Run 1 20.1 18,743 3.2 5.8
Run 2 22.4 20,276 1.4 6.1
Boiler B-2 Run 3 20.6 19,014 1.4 5.8
Average 21.0 mmBtu/hr 19,344 lb/hr 2.0% 5.9%
Operating Limit 22,6231b/hr 10% 5.6%
Run 1 26.9 17,189 3.6 5.9
Run 2 26.5 17,439 3.5 5.8
Boiler B-3 Run 3 27.8 17,833 3.5 5.6
Average 27.0 mmBtu/hr 17,487 lb/hr 3.5% 5.4%
Q2erating Limit 19,7931b/hr 10% 5.4%
Run 1 52.1 39,896 0.3 5.9
Run 2 52.7 39,596 0.6 6.0
Boiler B-4 Run 3 51.0 39,904 0.5 6.0
Average 51.9 mmBtu/hr 39,799 lb/hr 0.5% 6.0%
Operating Limit 44,340lb/hr 10% 5.9%
Compliance was demonstrated for HCI, CO, and Hg emissions 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 using the weighted average emissions from Boilers B-2,B-3, and B-4.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.vogel(cr,ncdenr�ov.
cc: Central Files,Alamance County IBEAM Documents-0100237