DAQ-2025-000296

,.tttF$nchr I,TAH DEPARTMENT OF
ET.IVIRONMENTAL OI.IATJTY
APR - 4 ?024
DIVISION OF AIR QUALITY
March 28,2024
Mr. Bryce Bird, Director Certified Mail: 7019 1120 0000 0070 9191
Division of Air Quality
Utah Department of Environmental Qualaty
195 North 1950 West
Salt Lake City, Utah 84115
RE: NSPS QQQ Semi-Annual Report - September l, 2O2Sthrough February 28, 2024
Director Bird:
HF Sinclair Woods Cross Refining LLC has conducted all the required inspections of the refinery
systems in accordance with 40 CFR 60 Subpart QQQ. Per 40 CFR 60.698(c), HF Sinclair is notifying you of
the following findings and corrective actions for the following semi-annual period:
HF SinclairWoods Cross Refining LLC
1070 W. 500 S, West Bountiful, UT 84087
801 -299-0600 | HFSinclair.com
September 28
Low water levels in drains,
degradation of water seal
system
59
lmmediately added water,
which restored seals,
Continued repair work from
orevious months.
October L2,26
Low water levels in drains,
degradation of water seal
system
13
lmmediately added water,
which restored seals,
Continued repair work from
previous months.
November 3,7,8,9,15,30
Low water levels in drains,
degradation of water seal
system
3
lmmediately added water,
which restored seals,
Completed repair work from
orevious months.
December L4 Low water levels in drains 2 lmmediately added water,
which restored seals.
January 31 Low water levels in drains 3 lmmediately added water,
which restored seals.
February 29 Low water levels in drains 4 lmmediately added water,
which restored seals.
REVIEWEDInitials:Date: Jan 15, 2025Complaince Status: OKFile #: 10123 (B2)
ff you have any questions or comments, please contact Matt Howes at (801) 397-74L2, or by email
( Matthew. Howes@ H FSinclair.com).
Sincerely,%tu
Matt Howes
Environmenta l-Engineei
cc: E Benson (r) File 2.2.7.1