DAQ-2025-000422

Chevrcnv
October 30,2023
CERTIFIED MAIL
RETURN RECETPT NO. 7019 0700 0001 5349 7856
Mr. Bryce Bird, Director ([e-mail])
Utah Division of Air Quality
195 North 1950 West
PO Box 144820
Salt Lake City, Utah 84114-4820
Benzene Waste Operations NESHAP
Quarterly Report - 3rdQuarter 2023
Dear Mr. Bird:
In accordance with the requirements specified in 40 CFR 61.357(dX6) and (7), Chevron is submitting dre
following Benzene Waste Operations NESHAP (BWON) documents:
o 2023 3'd Quarter Reporto 2023 3'd Quarter Inspection Certification
Quarterlv Renort J40 CFR 61.357(dx7)l
Of the information required in a quarterly report, the information requested under 61.357(dx7)(iv)(A),
61 .357 (d)(7 )(iv)(D) and 61 .3 57(dXTXiv)(I) is applicable to the Salt Lake Refinery.
(iv)(A) Each 3-hour period of operation during which the average temperature of the gas steam
in the combustion zone of a thermal vapor incinerator, as measured by the temperature
device, is more than 28 oC below the design combustion zone temperature.
All 3-hour periods during which the Regenerative Thermal Oxidizer (RTO) gas stream temperature in fie
combustion zone was below 1350 "F are listed Table l.
(iv)(D) Each 3-hour period of operation during which the average concentration of organics or the
average concentration ofbenzene in the exhaust gas from a carbon adsorberrcondenser, or other
vapor recovery system is more than 20 percent greater than the design concentration level of
organics or benzene in the exhaust gas.
The Chevron Marketing Terminal uses a Vapor Recovery Unit (VRL) to control BWON streams. During
the reporting period, there were no 3-hour periods in which the average concentration of organics or
benzenein theexhaust gas was more than 20perc€ntgreaterthanthe desigrr concentration level oforganics
or benzene in the exhaust gas.
Salt t ke Refinery
Chevron Products Company
685 South Chevron Way
North Salt Lake, UT 84054
Tel [phone]
Fax [phone]
T'TAH DEPARTMENT OF
ENVIRONMENTAL QUAUTY
ti0\/ - 2 ?ii)i)
DIVISION OF AIR QUALTTY
Troy Tortorich
Refinery Manager
REVIEWEDInitials: Date: Jan 16, 2024Complaince Status: OKFile #: 10119 (B2)
Sincerely, 3I
Troy Tortorich
(ivXI) Each occurrence when the carbon in a carbon adsorber system that is not regenerated
directly onsite in the control device is not replaced at the predetermined interval specified in
61.354(d) of this subpart.
During the reporting period, two sets of carbon canisters were on site, utilizing dual carbon canisten in
series. Breakthrough monitoring is performed between the two canisters on a weekly basis; the secondary
canister is monitored monthly.
During the reporting period there were no occurences when carbon canisters were not replaced at fre
predetermined interval.
Quarterly Inspection Certification [40 CFR 61.357(dx6)l
I certify that, to the best of my knowledge and belief, based upon reasonable inquiry, that the inspections
required between July l, 2023 and September 30,2023 have been carried out in accordance with tre
requirements of 40 CFR 61, Subpart FF.
Please contact Joseph Rowe via email at iosephrowe(Echevron.com or (801 ) 539-7354 if you have any
questions regarding this report.
725.r
Attachment: Table 1: 3-hour periods during which the RTO gas stream temperature
in the combustion zone was below 1350" F
cc: CERTIFIED MAIL NO. 7019 0700 0001 5349 7863
Bob Gallagher
U.S. EPA Region 8 - Montana Office
l0 West l5th Street, Suite 3200
Helena, MT 59626
Phone: [phone]
Fax: [phone]
Gallasher. Bob@epa. eov
Table l: 3-hour periods during which the RTO gas stream temperature
in the combustion zone was below 1350" F
Start of3-hourperiod < 1350 F End of3-hour period < 1350 F
71112023 0:00 7llD023 3:00
7lll2O23 3:00 7ll/2023 6:,00
71112023 6:00 71112023 9:00
7/112023 9:00 7/112023 12:00
71112023 12:00 7/112023 15:00
7/l/2023 15:00 7/112023 18:00
71112023 18:00 7/112023 2l:00
71112023 2l:00 712/2023 0:00
71212023 0:00 712/2023 3:00
71212023 3:00 712D023 6:00
7/212023 6:00 712/2023 9:00
71212023 9:00 7D/2023 12:00
7/2/2023 12:00 71212023 15.00
7/212023 15:OO 71212023 18:00
71212023 18:OO 71212023 2l:00
71212023 21 :00 71312023 0:00
713/2023 0:00 71312023 3:00
71312023 3:00 71312023 6:00
71312023 6:00 7/3D023 9:00
71312023 9:00 7/3D023 12:00
713/2023 12:00 7/312023 15:00
UIAH DEPARTMENT OF
ENVIHONMENTAL QUAUTY
i{tl\/ - ? ,lr.l-j
DIVISION OF AIR OUALITV