AQ_F_0100010_20150430_CEM_RptRvwLtr (9)

PWA
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R. van der Vaart
Governor Secretary
April 30, 2015
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Alan Skrzypczak
Facility Manager
Stericycle, Inc.
Post Office Box 310
Haw River, North Carolina 27258
SUBJECT: Review of 2014 Second Semester CO CEMS Report
Stericycle, Inc. —Haw River Facility
Haw River, Alamance County,North Carolina
Air Permit No. 05896T22
Facility ID# 0 1000 10
Dear Mr. Skrzypczak:
Thank you for your timely submittal of the subject report, dated January 23, 2015. The excess
emissions report assessed the carbon monoxide (CO) /oxygen(02) continuous emissions
monitoring systems (CEMS) operating at the Haw River Facility during the second half of 2014.
We requested and received additional clarification from you via email concerning excess
emissions of CO during startup. The Division of Air Quality(DAQ) has completed its review
and offers the following comments:
1. Hospital, medical, and infectious waste incinerators (HMIWI) ESO1 & ES02 were reviewed
for compliance with the state-only CO emissions limit of 11 parts per million by volume
(ppmv, 7% 02, 12-hour rolling average) as stated in Air Permit No. 05896T22, Specific
Condition 2.1.A.La. Although there were no excess emissions exceedances reported for
ESO1 during this time period, there were twelve(12) excess emissions exceedances reported
for ES02. All CO exceedances occurred during incinerator startup on October 10, 2014, with
a maximum 12-hour average of 12.44 ppmv. The report indicated the startup for ES02 was
extended [no waste incinerated] until the 12-hour CO average was cleared. After reviewing
the incident, our office has determined that Stericycle must further address the CO
exceedances. It is requested that a written response to this letter be submitted to the
Division Director as soon as possible, but no later than fifteen (15) days following
receipt of this letter. The response should outline the steps that you plan to take or have
taken to assure compliance with the aforementioned requirement at all times.
1641 Mail Service Center,Raleigh,North Carolina 27699-1641
Phone:[phone] Internet:www.ncdenr.gov
An Equal Opportunity 1 Affirmative Aclion Employer—Made in part by recycled paper

Mr. Alan Skrzypczak
April 30, 2015
Page 2
2. The report also contained a similar incident which occurred during the first quarter of 2015.
On January 11, 2015, there were nine (9) excess emissions exceedances reported for ES02.
These exceedances also occurred during startup with a maximum 12-hour CO average of
14.41 ppmv. Please address this incident as well in your correspondence to the Director.
3. Quarterly summary reports were reviewed for compliance with good operation and
maintenance (O&M)practices pursuant to 15A NCAC 02D .0611(d), General Condition 3.F
and summarized as follows:
Unit Quarter %EE %MD
HMIWI ESO1 3rd 0.0 0.1
4th 0.0 0.0
HMIWI ES02 3rd 0.0 0.1
4th 0.6 0.2
The incinerators, along with associated CEMS units, appear to have operated using good
O&M practices since quarterly percent excess emissions (%EE) and percent monitor
downtime(%MD) were less than 6% for any single calendar quarter and less than 3% for two
consecutive quarters.
If you should have any questions,please call me at(919) 707-8497 or Alan Drake of my staff
at [phone].
Sincerely,
0/11
Michael Pje aj, P.E., Supervisor
Stationary Source Compliance Branch
Division of Air Quality, NCDENR
cc: Lisa Edwards, WSRO
Michael Pjetraj, RCO
Central Files, Alamance County
IBEAM (0100010)