DAQ-2024-008515

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Oean P. Anderson
Vice President
Tesoro Refining & Marketing Company LLC
A rubsidiary of Marathon P
ITTAH DEPARTMENT OF
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April 8, 2023
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
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First Quarter 2024 R307-326-9(7) VOG Monitorino Report
Title V Ooeratino Permit 3500008001 Condition 11.B.4.k.3 &
Approval Order DAQE-AN 1 03350075-1 8
Dear Mr. Bird:
This is the first quarter 2024VOC 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 January 1,2024, through March 31,2024.
During the reporting period, 27,280 components were inspected using Method 21 . Of 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:
1 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(f1.
All monitoring has been conducted as stipulated in Utah Administrative Rule R307-326-9. lf you have any
questions regarding this matter, please contact James Beardall at801-5214914.
I certify under penalty of law that this document and all attachments were 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.*"LC,L
Dean P. Anderson
Vice President
Tesoro Refining & Marketing Company LLC
Tesoro Refining &
Marketing Company LLC
474 W 900 N
salt Lake city, UT 8410
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APR 1 1 2024
DIVISION OFAIR QUALITY
Delay of Repair (DOR) List
Process
Unit
Component
Tvpe
LDAR
Tag #Leak Definitionl Date Placed
on DOR DOR Designation Date
Repaired2
none
B-2-10335