DAQ-2024-007823

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January 26,2024
Director, Air and Toxics Technical Enforcement program
Office of Enforcement, Compliance and Environmentat Justice
EPA Region Vlll
MailCode SENF-AT
1595 Wynkoop Sheet
Denver, CO 80202-1129
RE: 9-ummary Report- Gaseous and Opacity Excess Emission and Continuoua
f,lonitoring System Perforrnarre
Sterigenics Salt Lake City Facility - tftah Permit # DAeE-AN-i0{t50030.21
For the Period: July 1 - December g1,2D2g
Dear Director:
Per the requirements of 40 CFR $ 63. 10(eX3[vi), please accept this semi-annual Summary
Report for our Salt Lake City, Utah facility.
As provided in 40 CFR S 63.10(eX3[vii), we are submitting only the Summary Report for our
Salt Lake City facility because:
a) The total duration of excess emissions, or process or control system parameter
exceedances during the reporting period was less than 1 perc6nt of tire total operating
time, and
b) CMS downtime during the reporting period was tess than 5'percent of the totat
operating time.
In this reporting period, the Salt Lake City facility experienced a breakdown of its Advanced Air
Technologies (AAT) wet scrubber control device system. However, during the breakdown,
Process emissions were treated with the facility's dry bed conbol device Jystem as alowed bythe facility's operating permit.
Sterigenics US, LLC has reviewed applicable prwisions of the operating permit. The following
information is submitted as required in g63.10(eX3Xvi):
(A) Qgmpanv Name and Address of the Affected Source:
Sterigenics US, LLC
UTAH DEPABTMENT OF
E}wl RONMENTAL OI..I,AUTY
FEB - 1 2024
DIVISION OF AIR QUAUTY
REVIEWED
Initiats: CG o^,,7' -27-?4
compriancc r,^u*fr-5ffi1 rt t ql r?/o/ ?
5725 West Harold Getty Dr.
Salt Lake City, UT 84116-3763
(B) ldentificatlon of Hazardous Air pollutant:
Ethylene Oxide
2015 Spring Rd., Oak Brook, tL 50523
63G928'170O I sterigenics.com
0,,,u (cTJ.; f '^)
-__
(C) Reoortino Period Dates:
Beginning: July 01 ,2023
Ending: December 31, 2A23
(D) Descriotion of Process Units:.,@ionchambersofvarioussizestosterilizemedicaldevicesand
other products'using ethylene oxide in gaseous form. Process emissions are exhausted
from tire sterilizatiori chambers through vacuum pumps to a Ceilcote acid-water scrubber
system for treatment. Process emissions from chamber backvents and aeration rooms for
dlgassing ethylene oxide from products following sterilization are treated in an AAT wet
scrubber with a dry bed catalyst system.
1E1 Emission and Ooeratino Parameter Limitations Soecified in Relevant Standards:
Control Unit Control Parameter LimitationsrSta ndards
Ceilote Scrubber Glycol liquor leveltank #2
Scrubber liquid flow rate
(avg.)
Scrubber qlycol solution PH
Level<181.5 inches
:80 GPM
pH < 2.0
AAT Wet Scrubber/
Dry Bed System
Glycol concentration
Scrubber liquid flow rate
(avg.)
Heat exchanger temp
differential
EO conc. in dry bed exhaust
Concentration < 26.7 o/o
>1500 GPM
>50F
< 5.415 ppmv during normal
operation
Monitorino Eouipment Manufacturer and Model Number
SRI Gas Chromatograph ; Model 8610C
Date of Latest CMS Certification or Audit:
Calibrations occur weekly
TotalOoeratinq Time of Affected Source durino Reoortino Period:
4344 hours
(F)
(G)
(H)
(t)
(J) CMS Performance Summarv:
2015 Spring Rd., Oak Brook, lL 60523
630-928.f700 | ,t*rigcnrcs.cor.
Emission Data Summarv:
Control Unit
Total
Duration
of Excess
Emissions
Excess
Emission
Duration
as o/o of
Total
Hours
Excess Emission Duration bY Cause
Startupl
Shutdown
Control
Equipmen
t
Problems
Process
Problems
Other
Known
Causes
Other
Unknown
Causes
AAT 0hr 0o/o 0 0 0 0 0
Ceilcote 0hr 0o/o 0 0 0 0 0
There were no CMS outages of the emission oontrolsystems during the period'
(K) Descfiption of chanqes in cMS. Process€s or contrcls since Last Reoortino Period:
No changes to rePort.
(L) ResDonsibleOfficid qertificali:on:i
Based on the information and belief formed after reasonable inquiry, the statements and
information in this report are tue, accurate, and complete'
Wagner
Vice President - Environmentral Health & Safety
(M) Pate of Reoort:
January 2A,2024
lf you have any questions regarding this repor! please contract me at [phone] or
soeorgacoo@Sterioenics. com
Sincerely,
Stelgia GeorgacoPoulos
Maniger, Environmental Health & Safety
Cc: Mr. BrYce Bird, Director
UDEQ Division of AirQualitY
195 North 1950West
P.O. Box'1448120
Salt Lake CitY, UT 84.114-48,20
Joseph Jeppson - SLC Facility General Manager
2015 Spring Rd.. Oak Brook, lL 60523
63&928-1700 | sterig€nics.com