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Home My WebLink AboutDAQ-2025-0001531 DAQC-PBR032820001-24 Site ID 3282 (B1) MEMORANDUM TO: FILE – OVINTIV USA INC – Ute Tribal 3-21-4-1 THROUGH: Rik Ombach, Minor Source Oil and Gas Section Manager FROM: Fred Goodrich, Environmental Scientist DATE: December 30, 2024 SUBJECT: OIL AND GAS PERMIT-BY-RULE EVALUATION INSPECTION DATE: November 21, 2024 SOURCE LOCATION: Lat: 40.12706 Long: -110.00332 Business Office: Ovintiv USA Inc. 370 17th Street, Suite 1700 Denver, CO 80202 SOURCE TYPE: Tank Battery Duchesne API: 4301350204 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: 40 CFR 60 Subpart JJJJ, 40 CFR 60 Subpart OOOO. SOURCE EVALUATION: Site Type: PBR-Uncontrolled No Flare Controls, Site powered by Engine. The source registered: 1627 Estimated Oil BBL. DOGM current 12 month rolling production is: 657 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-42 Mfg Year - 1973 Horse Power - 40 Combustion - Natural Gas, Pneumatic, Tank Visible Emissions 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 visible emissions were detected 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. Pneumatic Controllers 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 as described in 40 CFR 60.5365(d)(1). Storage Vessels 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. Thief hatches are kept closed and latched. [R307-506-4(1)] In Compliance. All hatches were found closed at the start of the evaluation. Upon modification, the well site was re-evaluated against the thresholds of R307-506-4(2). [R307-506-4(6)] In Compliance. The DAQ did not identify any modifications or unauthorized equipment. 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. Engines that were installed, relocated or modified after January 1, 2016 are required to show compliance with Table 1 of R307-510-4 through a performance test evaluation that is reviewed by the DAQ and found to be in compliance. [R307-510-4(1)] In Compliance. Meets this requirement. Pre-2016 source. Initial startup on source was 2010. Affected engine exhaust vents are vertical and unrestricted. Stacks are 8' or greater if the site horsepower rating is 151 to 305 Stacks are 10' or greater if the site horse power rating is 306 or greater. [R307-510-4(3)] In Compliance. Meets this requirement. 3 Emission Inventory: An emissions inventory has been submitted within the past three years. [R307-150-9(1)] In Compliance. The operator submitted for the 2020 emissions inventory. Oil and Gas Industry Registration Requirement The source is registered with the DAQ. [R307-505-3(3)] In Compliance. Registration has been updated within 30 days of a company name change, removal or addition of control devices, or termination of operations. [R307-505-3(3)] In Compliance. Records for each of the following are kept for three years: Monthly storage vessel vent system inspections (openings, thief hatches, pressure relief devices, bypasses, etc.), if controlled. Monthly crude oil throughput Emission calculations, actuals and sampling data when used to justify an exemption to storage vessel rules Emergency storage vessel usage (dates used, emptied, and volumes), if not controlled. [R307-506-5] In Compliance. Records observed at local field office and appear to be orderly and complete. NSPS (Part 60) JJJJ: Standards of Performance for Stationary Spark Ignition Internal Combustion Engines [40 CFR 60 Subpart JJJJ] In Compliance. Source meets this requirement. NSPS (Part 60) OOOO: Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution [40 CFR 60 Subpart OOOO] In Compliance. PREVIOUS ENFORCEMENT ACTIONS: None in the past 5 years. COMPLIANCE STATUS & RECOMMENDATIONS: In regards to the site, the overall status is: In Compliance. This source was found to be clean and well-kept with no visible or fugitive emissions. The source was inspected by AVO and with an OGI camera and found to be free of leaks. The operator’s representatives were pleasant and cooperative. RECOMMENDATION FOR NEXT INSPECTION: The DAQ has no recommendations for the next inspector other than what are customary. RECOMMENDATIONS FOR NSR: None. ATTACHMENTS: None.