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Home My WebLink AboutDAQ-2025-0014181 DAQC-PBR155170001-25 Site ID 15517 (B1) MEMORANDUM TO: FILE – OVINTIV USA INC. – Ute Tribal 10-14-4-1W THROUGH: Rik Ombach, Minor Source Oil and Gas Section Manager FROM: Fred Goodrich, Environmental Scientist DATE: March 6, 2025 SUBJECT: OIL AND GAS PERMIT-BY-RULE EVALUATION INSPECTION DATE: January 16, 2025 SOURCE LOCATION: Lat: -109.961318969727 Long: 40.1333694458008 Business Office: Ovintiv USA Inc. 370 17th Street Suite 1700 Denver, CO 80202 SOURCE TYPE: Tank Battery Uintah API: 4304751424 SOURCE CONTACTS: Ryan Zillner, Corporate Environmental Contact Phone: 720-876-3144, Email: ryan.zillner@ovintv.com OPERATING STATUS: Operating. PROCESS DESCRIPTION: Oil and gas products are brought to the surface. These products go through a separator where the oil and any water products are sent to storage tanks and the gas is used to power equipment on site (pump jack engine, tank heater, separator, flare, combustor, etc.) Any remaining gas is sent to a pipeline that feeds a local gas plant. The oil and process water in the storage tanks is loaded into tanker trucks and hauled off site for processing and disposal. 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: SOURCE EVALUATION: Site Type: PBR-Uncontrolled No Flare Controls, Site powered by Engine. The source registered: 7,999 Estimated Oil BBL. DOGM current 12 month rolling production is: 989 BBL's. Utah Statute R307-506 requires a source with throughput greater than 8,000 BBLs to have controls. , - 2 REGISTERED EQUIPMENT: Engine - Engine - Natural Gas 2-Stroke Lean Burn Make - Ajax Model - E-565 Mfg Year - 2014 Horse Power - 40 Combustion - natural gas, Pneumatic, Tank General Provisions Visible emissions are within the following opacity limits: VOC Control Devices and Gasoline engines 0%, Diesel engines 20%, Natural Gas Engines and Boilers, Treater burners & Tank burners 10%, Mobile source dust 10%. [ R307-201-3] In Compliance. No excessive opacity limits were observed during evaluation. VOC emissions are, at all times, minimized as reasonably practicable by equipment design, maintenance and operation practices. [R307-501-4(1)] In Compliance. Source meets uncontrolled requirements. All other internal components of tank battery functioning as designed. All natural gas-driven pneumatic controllers are in compliance with 40CFR 60.5390 or 60.5390a as applicable. Tagging and record keeping requirements are not required. [R307-502-4] In Compliance. This source does not use continuous bleed controllers. Tank Truck Loading Truck loading is done by bottom filling or submerged fill pipe [R307-504(1)] In Compliance. The truck loading valves were built and designed for submerged loading. Storage Vessels Thief hatches are kept closed and latched. [R307-506-4(1)] In Compliance. All hatches were found closed at the start of the evaluation. Natural Gas Engines Engines subject to R307-510 shall be certified or have an initial performance test per CFR 60.4244. [R307-510-4(2)] In Compliance. Meets this requirement. Pre-2016 source. Initial startup on source was 2015. Engines subject to R307-510 shall be certified or have an initial performance test per CFR 60.4244. [R307-510-4(2)] In Compliance. Meets this requirement. Pre-2016 source. Initial startup on source was 2015. 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. Source meets uncontrolled requirements. All other internal components of tank battery functioning as designed. 3 Oil and Gas Industry Registration Requirement The source is registered with the DAQ. [R307-505-3(3)] In Compliance. Source appears to be in order. Applicable Federal Regulations NSPS (Part 60) OOOO This source is permitted with the State of Utah with legal and enforceable limits. They do not have the production that would qualify under 40 CFR (60) OOOO for a tank affected facility. PREVIOUS ENFORCEMENT ACTIONS: NIC NAR applied January 31, 2024. Operator corrected issue promptly. Re-evaluation of source performed on January 16, 2025, was found clean, free of emissions, and in compliance. COMPLIANCE STATUS & RECOMMENDATIONS: In regards to the site, the overall status is: In Compliance. The DAQ was joined by Ovintiv personnel during the site inspection. OGI camera was used during evaluation, no fugitive emissions were detected. Source was clean and well kept. DAQ recommends frequency of inspections to decrease as scheduled. RECOMMENDATION FOR NEXT INSPECTION: DAQ recommends inspection frequency to every other year bases for now. RECOMMENDATIONS FOR NSR: None. ATTACHMENTS: None.