DAQ-2025-001343

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DAQC-PBR147550001-25
Site ID 14755 (B1) MEMORANDUM

TO: FILE – UINTA WAX OPERATING, LLC – ULT 9-36-3-1E

THROUGH: Rik Ombach, Minor Source Oil and Gas Section Manager

FROM: Stephen Foulger, Environmental Scientist

DATE: February 27, 2025

SUBJECT: OIL AND GAS PERMIT-BY-RULE EVALUATION

INSPECTION DATE: February 6, 2025

SOURCE LOCATION: Lat: 40.176867 Long: -109.82395

Business Office:
Uinta Wax Operating, LLC
6000 Western Place Suite 1000
Fort Worth, TX 76107

SOURCE TYPE: Tank Battery
Uintah County
API: 4304751900

SOURCE CONTACTS: Josh Morgan, Field Contact
Phone: [phone], Email: [e-mail]
Karen Pratt, Corporate Environmental Contact
Phone: [phone], Email: [e-mail]
Kaylene Bridwell, Corporate Environmental Contact
Email: [e-mail]

OPERATING STATUS: Operating

PROCESS DESCRIPTION: Oil and gas products are brought to the surface by a pumpjack
powered on-site by an engine with less than 150 HP. All
products are then piped off-site to a central tank battery at a
different location.

APPLICABLE REGULATIONS: Utah Administrative Code (UAC) R307-500 Series for the Oil
and Gas Industry, and UAC R307-201: Emission Standards:
General Emission Standards; and UAC R307-150: Emission
Inventories. Federal Subpart: 40 CFR 60 Subpart IIII, 40 CFR 60
Subpart JJJJ, 40 CFR 60 Subpart ZZZZ.

SOURCE EVALUATION: Site Type: PBR-Controlled
No Flare Controls, Site powered by Engine.
DOGM current 12 month rolling production is: 880.
Utah Statute R307-506 requires a source with throughput
greater than 8,000 BBLs to have controls.
/ + # ) * 0 ' " -
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REGISTERED EQUIPMENT: Engine

Associated Gas Flaring Associated gas is routed to a process unit for combustion, a sales pipeline or an operating VOC control device, except in an emergency. An emergency release is unanticipated, temporary, infrequent, unavoidable, =24 hrs. and is not due to operator negligence. Low pressure gas from working loss, breathing loss and oil flashing is not "associated gas". [R307-511-4(1)] In Compliance. Associated gas found properly routed at the time of inspection. Emission Inventory An emissions inventory has been submitted within the past three years. [R307-150-9(1)] In Compliance. Source found properly submitted in the emissions inventory. Oil and Gas Industry Registration Requirement The source is registered with the DAQ. [R307-505-3(3)] In Compliance. Source found properly registered at the time of inspections Certified and non-certified engines are regularly maintained according to the Engine manufacturer's Schedule or the Maintenance Plan. [40 CFR 60 Subpart IIII, JJJJ, 63 Subpart ZZZZ] In Compliance. Engine maintenance records found to be compliant at the time of inspection. Applicable Federal Regulations NSPS (Part 60) JJJJ: Standards of Performance for Stationary Spark Ignition Internal Combustion Engines [40 CFR 60 Subpart JJJJ] In Compliance. Engine maintenance records found to be compliant at the time of inspection.
PREVIOUS ENFORCEMENT
ACTIONS: None in the past 5 years.

COMPLIANCE STATUS &
RECOMMENDATIONS: In Compliance.

RECOMMENDATION FOR
NEXT INSPECTION: Recommend to decrease inspection frequency.

ATTACHMENTS: None.