AQ_F_0100010_20220131_CEM_RptRvwLtr (4)

Etc STATE
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ROY COOPER
Governor
ELIZABETH S.BISERf,z�M
Secretary
MICHAEL ABRACZINSKAS NORTH CAROLINA
Director Environmental Quality
January 31, 2022
Mr. Kirk Yarbrough
Facility Manager
Stericycle, Inc.
Post Office Box 310
Haw River,North Carolina 27258-0310
SUBJECT: Review of 2021 CO/02 CEMS RATA
Stericycle, Inc. —Haw River Facility
Haw River, Alamance County,North Carolina
Air Permit No. 05896T25
Facility ID No. 0100010
Dear Mr. Yarbrough:
Thank you for the timely submittal of the subject report received, December 29, 2021, for
the carbon monoxide (CO)/oxygen(02) continuous emission monitoring systems (CEMS)
operating at Stericycle's Haw River facility. The Division of Air Quality(DAQ)has completed its
review of the relative accuracy test audit(RATA) and has the following comments:
1. The CO/02 CEMS were installed on Stericycle's hospital, medical, and infectious waste
incinerators (HMIWI) ESO1 & ES02 pursuant to 15A NCAC 02D .1206—Hospital, Medical,
and Infectious Waste Incinerators and Air Permit No. 05896, Specific Condition 2.1.A.21
2. Annual CEMS testing was conducted by TRC Environmental Corp. (TRC) on November 16-
17, 2021. Reported test results from the RATA indicated the CO and 02 analyzers appear to
have met the relative accuracy requirements set forth in 40 CFR Part 60,Appendix B,
Performance Specification 3 (PS-3 for 02) and PS-4A (for CO) as summarized below.
Source Parameter RA Allowable RA Test Date
CO Primary 1.39 ppmvd < 5 ppmvd
11/16/21
ES01 02 1.76% <20%
CO Backup 2.87% < 5% of std* 11/17/21
CO Primary 4.99 ppmvd < 5% of std*
11/16/21
ES02 02 0.55% <20%
CO Backup 0.5 8 ppmv < 5 ppmvd 11/17/21
*CO emission standard is 11 ppmvd at 7%02.
D Q2177 North Carolina Department of Environmental Quality I Division of Air QualityE West Jones Street 11641 Mail Service Center I Raleigh,North Carolina 27699-1641
NORTH CAROLINA
oepanment of Environmental Uwi\ /� 919.707.8400

Mr. Kirk Yarbrough
January 31, 2022
Page 2
3. As indicated above, a RATA was also performed on the backup CO CEMS (Mfg/model:
Thermo Scientific/48i; Serial#: CM 09080036). Test results indicate the backup analyzer met
the requirements for relative accuracy as set forth in PS-4A. Should the backup CEMS be
pressed into service,please refer to our letter of December 12, 2012, for conditions of its use.
4. 40 CFR Part 60, Appendix F, Procedure 1 - Quality Assurance Requirements for Gas
Continuous Emission Monitoring Systems Used for Compliance Determination, requires that
quarterly audits must be conducted, with a RATA being conducted at least once every four
calendar quarters. The next RATA for ESO1 and ES02 should be completed by December
31, 2022. Please ensure that quality assurance/quality control (QA/QC) requirements are met
and complied with at all times. In addition,please notify this office at least 45 days prior to
performing the annual RATA so that arrangements can be made to observe the test.
In addition to the mailing of this letter, an electronic copy(e-copy) is being provided for
your records. If you should have any questions, please contact me at [phone] or
[e-mail].
Sincerely,
ake, nvironmental ngineer
Division of Air Quality,NCDEQ
c: Kirk Yarbrough, Stericycle (e-copy)
Don Nuss, Stericycle (e-copy)
Ray Stewart, DAQ WSRO (e-copy)
Gary Saunders, DAQ SSCB (e-copy)
IBEAM Documents, 0100010 (e-copy)
Central File, Alamance County