DAQ-2025-000421

Chevronv Troy Tortorich
Refinery Manager
Salt Lake Refinery
Chevron Products Company
685 South Chevron Way
North Salt Lake, UT 84054
Tel [phone]
Fax [phone]
January 29,2024
CERTIFIED MAIL
RETURN RECEIPT NO.7018 0680 0001 4890 9409
Mr. Bryce Bird, Director ([e-mail])
Utah Division of Air Quality
195 North 1950 West
PO Box 144820
Salt Lake City, Utah 84114-4820
UTAH DEPARTMEI.IT OFENVIRONMENTAL QUALITY
)fr24
I]IVISION OF AIR OUALITY
Benzene Waste Operations NESHAP
Quarterly Report - 4th Quarter 2023
Dear Mr. Bird:
In accordance with the requirements specified in 40 CFR 61.357(d)(6) and (7), Chevron is submitting the
following Benzene Waste Operations NESHAP (BWON) documents:
c 2023 4th Quarter Report. 2023 4th Quarter Inspection Certification
Ouarterlv Report [40 Cf'R 61.357(dx7)l
Of the information required in a quarterly report, the information requested under 61.357(d\(7)(iv)(A),
61.357(d)(7)(iv)(D) and 61.357(d)(7)(iv)(I) is applicable to the Salt Lake Refinery.
(iv)(A) Each 3-hour period of operation during which the average temperature of the gas stream
in the combustion zone of a thermal vapor incinerator, as measured by the temperature
device, is more than 28 "C (50'F) below the design combustion zone temperature.
All 3-hour periods during which the Regenerative Thermal Oxidizer (RTO) gas stream temperature in the
combustion zone was below 1350'F are listed in Table I below.
(ivXD) Each 3-hour period of operation during which the average concentration of organics or the
average concentration of benzene in the exhaust gas from a carbon adsorber, condenser, 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 (VRU) to control BWON streams. During
the reporting period, there were no 3-hour periods in which the average concentration of organics or
benzene in the exhaust gas was more than 20 percent greater than the design concentration level of organics
or benzene in the exhaust gas.
REVIEWEDInitials: Date: August 16, 2024Compliance Status: OKFile #: 10119 (B2)
(iv)fl) 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 interual specified in
61.354(d) of this subpart.
During the reporting period, one set of carbon canisters were on site, utilizing dual carbon canisters 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 the
predetermined interval.
Ouarterlv Insnection Certification [40 CFR 61.357(dX6)]
I certifu that, to the best of my knowledge and belief, based upon reasonable inquiry, that the inspections
required between October 1,2023 and December 31,2023 have been carried out in accordance with the
requirements of 40 CFR 61, Subpart FF.
Please contact Joseph Moore via email at [e-mail] or [phone] if you have any
questions regarding this report.
Sincer*,
-,#'h I'
Troy Tortorich
725.1
Attachment: Table l: 3-hour periods during which the RTO gas stream temperature
in the combustion zone was below 1350" F
cc: CERTIFIED MAIL NO. 7018 0680 0001 4890 9379
Bob Gallagher
U.S. EPA Region 8 - Montana Office
l0 West l5th Street, Suite 3200
Helena, MT 59626
Phone: [phone]
Fax: [phone]
Gallagher. Bob@epa. gov
Start of3-hour period < 1350 F End of3-hour period < 1350 F
l0/lED02312:00 10/1812023 l5:00
ll/14i2023 9:00 llll4l202312:00
llll4l2023lZ:N llll4l202315:00
llll4/202315:00 ll/14i202318t00
llll4B02318:00 llll4D023 2l:00
Table l: 3-hour periods during which the RTO gas stream temperature
in the combustion zone was below 1350o F
UTAH DEPAHTMENT OF
ENVIRONMENTAL OUATJTY
FEB - 2 202-4
DIVISION OF AIR QUALITV