DAQ-2024-004637

ANE"nSl.
Dean P. Anderson
Vice President
Tesoro Refinin8 & Marketing Company LLC
Tesoro Refining &
Marketing Company LLG
A subsidiary of Marathon Petroleum Corporation
W9OON
Lake City, UT 8410
January 2,2024
Mr. Bryce Bird
Attn: Jeremy Marsigli
Utah Division of Air Quality
195 North 1950 West
P.O. Box 144820
Salt Lake City, UT 84114-4820
- 9 2024
Ii
DIVISION OF AIR QUALITY
SueMfireo tN penso],I
Fourth Quarter 2023 R307-326-9(71 VOC Monitorinq Reoort
Title V Operatinq Permit 3500008001 Condition 11.B.4.k.3 &
Approval Order DAQE-AN 1 03350075-1 8
Dear Mr. Bird:
This is the fourth quarter 2023VOC monitoring report for Tesoro Refining & Marketing Company, LLC's
Salt Lake City Refinery and Tesoro Logistics Operations, LLC. This report includes quarterly monitoring
information from October 1,2023, through December 31,2023.
During the reporting period, 23,209 components were inspected using Method 21. Ot these components,
5 were identified as leaking at a rate greater than or equal to 10,000 ppm. Details for components placed
on Delay of Repair during this period are included below:
I ln addition to R307-326-9, Tesoro Salt Lake City, is subject to 40 CFR Part 60 Subpart GGGa, and as such leak definitions for
components in gas vapor and light liquid service are limited to 500 ppm for valves and 2,000 ppm for pumps.
2 Components requiring a unit shutdown are removed from the Delay of Repair list per 40 CFR 60.482-9a(0.
All monitoring has been conducted as stipulated in Utah Administrative Rule R307-326-9. lf you have
questions regarding this matter, please contact James Beardall at801-52149'14.
I certify under penalty of law that this document was prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons directly responsible for gathering
the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
Sincerelv. I
^fu/,_Dean P. Anderson
Vice President
Tesoro Refining & Marketing Company LLC
-f,rAil- D E Cnri-i'ia r iq i oFi- -
Delay of Repair (DOR) List
Process
Unit
Component
Type
LDAR
Tag #Leak Definitionr Date Placed
on DOR DOR Designation Date
Repaired2
None
B-2-10335