DAQ-2025-000416

ChcYlortv Troy Tortorach Salt Lake Refinery
Refinery Manager Chevron Products Company
685 South Chevron Way
North Salt Lake, UT 84054
I:11%111""11%
February 28,2024
CERTIFIED MAIL
RETURN RECErpr No.7021 272000014083 6es1 ,il#t,?5"ffilIts^fl1,
Mr. Bryce Bird, Director
Division of Air Quality MA[] - i 2|,?4
Utah Department of Environmental Quality
195 North 1950 West
Po Box 144820 nnnsloN OF AIR QUALITV
Salt Lake ciry, uT 84114-4820
MACT CC Periodic Report -2d Hrlf 2023
Dear Mr. Bird,
In compliance with the reporting requirements of 40 CFR Part 63 Subpart CC, the following constitutes
the periodic report required by $63.655(9) applicable to the Chevron Salt Lake Refinery. This submittal
covers the period from July 19,2023 to January 18,2024.
The following sections include the applicable reporting requirements.
I. Internal Floating Roofs - $63.655(gX2)
This requirement is not applicable as there are no IFR tanks subject to $63.646 at the
Refinery.
II. External Floating Roofs - $63.655(9)(3)
There were no EFR tank inspection failures during the reporting period.
lI. Miscellaneous Process Vents - $63.655(gX6)
There were no deviations during the reporting period.
IV. Performance Test Results - S63.655(gX7)
Not applicable for the reporting period.
V. Heat Exchange Systems - S63.655(gX9)
(D The number of heat exchange systems at the plant site subject to the monitoring
requirements in $63.654: four(ii) The number of heat exchange systems at the plant site found to be leaking; zero(iiD Monitoring is conducted monthly in accordance with $63.65a(c)(a)(i), therefore the
total strippable hydrocarbon leak action level is 6.2 ppmv.(iv) Not applicable for the reporting period(v) Not applicable for the reporting period
REVIEWEDInitials:Date: August 20, 2024Compliance Status: OKFile #: 10119 (B2)
VI. Pressure Relief Devices (PRD) - $63.655(9)(10)
During the reporting period, there were no instrument readings of 500 ppm or greater as
detected by Method 2l of 40 CFR Part 60. All required PRD monitoring was conducted
during the reporting period.
vII. Flares - $63.655(9)(11)
(i) There were no instrument readings of at least one minute of regulated material being
routed to the flare with no pilot flame present during the reporting period.
(ii) During the reporting period, there were visible emissions that exceeded a total of 5
minutes in a 2-hour period. Each instance is shown in the tables below.
F'lare I
Date 2-hour period Total minutes
7 t26t2023 21:00-23:00 19.75 minutes
Flare 2
Date 2-hour period Total minutes
712512023 21:00-23:00 13.5 minutes
712612023 2:00-4:00 8.25 minutes
(iii) During the reporting period, there were no flare tip velocity deviations. The net
heating value in the combustion zone (NHVcz) for Flares 7,2 and 3 periodically
dropped below the threshold of 270 Btu/scf. Each I 5-minute block below the
threshold is shown below.
Flare I
Date lS-min Block(s)NHVcz (Btu/scf)NHVvg (Btu/scf)
7126t2023 l:00-l:15
3:30-3:45
4:15-4:30
5:30-6:15
6:30-6:45
7:45-8:30
8:45-9:00
258
121
262
ll3
219
142
74
1,130
1,357
1,239
8ll
1,144
979
908
7 t3t/2023 22:15-22:45 t6 l6
Flare 2
Date l5-min Block(s)NHVcz (Btu/scf)NHVvg (Btu/scf)
7/26t2023 20:30-l:45 217 1,877
011212023 5:30-5:45 243 39s
Ut012023 5:15-5:30 241 380
U1412023 13:30-21:45 tt7 181
t111612023 7:30-
4:30(1111712023\
120 176
tlt8l2023 9:15-9:30 248 320
1U22t2023 17:00-
4:45(1112312023\
132 201
n123t2023 5:30-6:15 124 196
tt/2812023 l 0:1 5-1 5:1 5 59 66
U1512024 9:00-9: l5 43 58
Flare 3
Date l5-min Block(s)NHVcz (Btu/scf)NHVvg (Btn/scf)
8t30/2023 5:00-5:15 254 451
(iv) None of the flaring events required a root cause analysis or corrective action analysis.
V[I. Delayed Coking Units - 963.655(9)(12)
There were no deviations during the reporting period.
IX. Maintenance Vents - $63.655(9)(13)
There were no deviations during the reporting period.
X. Changes in Information Provided in a Notification of Compliance Status (NOCS)
Report - $63.655(gxla)
None.
If there are any questions regarding this report, please contact Lauren Vander Werffat [phone] or
LVanderWerffi@chevron. com
I certifu, based on information and belief formed after reasonable inquiry, the statements and information
in this document are true, accurate, and complete.
Sincerely,
Troy Tortorich
cc: cERrrFrED MArL No 7021 27200001408s 6e68 .ffiffi,3,fi1t?HH^fli,
U.S. EPA Region 8 - Montana Office
l0 West l5th Street, Suite 3200 MAR * I ,.Cr4
Helen4 MT 59626
DIVISION OF AIR QUALIN,