DAQ-2025-000414

Chcvronv Troy Tortorich
Refinery Manager
Salt Lake Refinery
Chevron Products Company
685 South Chevron Way
North Salt Lake, UT 84054
Tel [phone]
Fax [phone]
September '12,2024
CERTIFIED MAIL
RETURN RECEIPT NO. 7019 0700 0001 5349 8303
Mr. Bryce Bird, Director
Division of Air Quality
Utah Department of Environmental Quality
195 North 1950 West
PO Box 144820
Salt Lake City, UT 84114-4820
MACT CC Periodic Report- l't Half 2024
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(g) applicable to the Chevron Salt Lake Refinery. This submittal
covers the period from January 19,2024 to July 18,2024.
The following sections include the applicable reporting requirements.
I. Internal Floating Roofs - $63.655(9)(2)
This requirement is not applicable as there are no IFR tanks subject to $63.646 or $63.660 at
the Refinery.
II. External Floating Roofs - $63.655(gX3)
The requirements of 63.655(gX3Xi) do not apply as there are no EFR tanks subject to
963.646 at the Refinery. For purposes of 63.655(gX3Xii), there were no EFR tank inspection
failures or extension requests utilized during the reporting period.
III. Miscellaneous Process Vents - $63.655(g)(6)
There were no deviations during the reporting period.
IV. Performance Test Results - $63.655(gX7)
Not applicable for the reporting period. No performance tests for purposes of 40 CFR 63
Subpart CC were conducted during the reporting period.
V. Heat Exchange Systems - $63.655(g)(9)
(i) 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: one
(iii) Monitoring is conducted monthly in accordance with $63.65a(c)(a)(i), therefore the
total strippable hydrocarbon leak action level is 6.2ppmv.
DIPAIIIMt-NT
ENVIHONMENIAL
sEP 2 7 2024
OIVISION OF AIR OUAUTY
REVIEWEDInitials: Date: Jan 22, 2025Compliance Status: OKFile #: 10119 (B2)
Monitoring location: Cooling Water Tower #2
Measured total strippable hydrocarbon concentration: 125.6 ppmv
Date the leak was identified: 411612024
Date the source of the leak was identified:411612024
(iv) Leak Repair
Monitoring location: Cooling Water Tower #2
Re-monitored total strippable hydrocarbon concentration: 4.5 ppmv
Re-monitored date: 5 1912024
(v) Not applicable for the reporling period
VI. Pressure Relief Devices (PRD) - $63.655(g)(10)
During the reporling period, there were no
detected by Method 21 of 40 CFR Part 60.
during the reporting period.
vII. Flares - $63.655(gXl l)
instrument readings of 500 ppm or greater as
All required PRD monitoring was conducted
( ii)
(i) For purposes of $63.655(g)(ll)(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.
For purposes of 963.655(gXll)(ii). there were instances of visible emissions that
exceeded a total of 5 minutes in a 2-hour period during the reporting period. Each
instance is shown in the tables below.
Flare I
Date 2-hour period Total minutes
311912024 l8:00-20:00 7.5
7 t11t2024 I 9:00-21 :00 50
Flare 3
Date 2-hour period Total minutes
2t9t2024 0:00-2:00 9.75
4t2t2024 l9:00-21 :00 8.25
4/1712024 l8:00-20:00 10.75
4t19t2024 I l:00-13:00 7.5
5^712024 3:00-5:00 6.5
'1/7 /2024 22:00-24:00 7.25
7114t2024 I 0:00- I 2:00 9.25
(iii)During the reporting period, for purposes of (i63.655(9)(l I )(iii), there were no flare
tip velocity deviations from the limits at $63.670(d)(l)-(2).The net heating value in
the combustion zone (NHVcz) for Flares l. 2 and 3 periodically dropped below the
threshold at $63.670(eXl) of 270 Btu/scf. Each l5-minute block below the threshold
is shown in the tables below.
Flare I
Date l5-min Block(s)NHVcz (Btu/scf)NHVvg (Btu/scf)
v2312024 l3:00- 14: I 5 l5 20
412912024 00:45-02:00
05:30-06:00
07:30-07:45
09:15-09:30
244
t77
253
234
1,168
8il
1,099
1.098
Flare 2
Date lS-min Block(s)NHVcz (Btu/sc0 NHVvg (Btu/scf)
2fi312024 l5:00-15:15 120 243
4t8-4t9t2024 23: I 5-01 :30 165 200
4t9t2024 l3:15-14:15 0 I
Flare 3
Date 1S-min Block(s)NHVcz (Btu/scf)NHVvg (Btu/scf)
3t13-3t14t2024 22:00-00:45 60 75
311412024 08: I 5-08:30 85 74
3t27t2024 08:45-09:15 92 0
(iv) There were no flaring events that met the criteria in $63.670(o)(3) during the
reporting period.
VIII. Delayed Coking Units - $63.655(gX12)
For purposes of 963.655(g)(12)(i), there were no deviations from the limits at $63.657(a)(l)
during the reporting period. For purposes of $63.655(gXl2Xiii), there were no double-
quenching events performed during the reporting period.
IX. Maintenance Vents - $63.655(g)(13)
There were no deviations from the limits at 63.655(g)(6)(i) during the reporting period.
X. Changes in Information Provided in a Notification of Compliance Status (NOCS)
Report - S63.6ss(gXla)
None.
If there are any questions regarding this report, please contact Lauren Vander Werffat [phone] or
[e-mail]
REVIEWEDInitials: Date: Jan 22, 2025Compliance Status: OKFile #: 10119 (B2)
I certiff, 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: CERTIFIED MAIL NO 7019 0700 000r $49 8310
U.S. EPA Region 8 - Montana Office
l0 West l5th Street, Suite 3200
Helena MT 59626