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Home My WebLink AboutDAQ-2025-0009701 DAQC-PBR151780001-25 Site ID 15178 (B1) MEMORANDUM TO: FILE – OVINTIV USA, INC. – Sulser 10-30-3-2W THROUGH: Rik Ombach, Minor Source Oil and Gas Compliance Section Manager FROM: Fred Goodrich, Environmental Scientist DATE: February 5, 2025 SUBJECT: OIL AND GAS PERMIT-BY-RULE EVALUATION INSPECTION DATE: November 14, 2024 SOURCE LOCATION: Lat:40.192691, Long: -110.150938 Duchesne County Business Office: Ovintiv USA, Inc. 370 17th Street, Suite 1700 Denver, CO 80202 SOURCE TYPE: Tank Battery API: 4301351387 SOURCE CONTACTS: Ryan Zillner, Corporate Environmental Contact Phone: 720-876-3144, Email: ryan.zillner@ovintiv.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. SOURCE EVALUATION: Site Type: PBR – Controlled Controlled by flare, Site has Line Power. The source registered: 40000 Estimated Oil BBL. DOGM current 12 month rolling production is: 23,000 BBL's. Utah Statute R307-506 requires a source with throughput greater than 8,000 BBLs to have controls. REGISTERED EQUIPMENT: Pneumatic, Tank , - 2 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. All equipment is designed and properly functioning as intended to control emissions. 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. Flares Any flare has an operational auto-igniter and a continuously burning pilot flame. [R307-503-4] In Compliance. Flare inlet lines are equipped with a fire arrestor, pressure gauge, inlet pressure regulating valve and other components according to the engineering design, the manufacturers specifications or good practices for safety and emissions control. [R307-501-4(1)]] In Compliance. 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. A vapor capture line is used during truck loading if subject to storage vessel emissions controls of R307-506-4(2). [R307-504-4(2)] In Compliance. Vapor capture line found available for use at the time of inspection. 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. 3 VOCs from storage vessels are recycled, recovered or controlled by a device that is compliant with R307-508. Exempt if <8000 bbls crude oil per year, <2000 bbls condensate, or if uncontrolled emissions are <4 tons VOC per year.[R307-506-4(2)(a)] In Compliance. All vessel components found in good working order and found emission free. Vessel vent lines are sloped away from the flare inlet or to a separation vessel (scrubber). [R307-501-4(2)] In Compliance. Properly installed and appears to be functional to design. Combustor inlet lines are equipped with a fire arrestor, pressure gauge, inlet pressure regulating valve and other components according to the engineering design, the manufacturer's specifications or good practices for safety and emissions control. [R307-501-4(2)] In Compliance. Flare inlet lines were found properly engineered at the time of inspection. 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 reported in the 2020 emissions inventory. Leak Detection and Repair: The source has a source specific emissions monitoring plan. [R307-509-4(1)(a)] In Compliance. Reviewed at local field office. Oil and Gas Industry Registration Requirement The source is registered with the DAQ. [R307-505-3(3)] In Compliance. Source appears to be properly registered at the time of inspection. 4 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. Source appears to be in order at the time of evaluation. 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. The recordkeeping procedures of the operator are found to be orderly and complete. These records were reviewed at the local office. Monthly AVO and USEPA method 22 inspections are conducted on VOC control devices and associated equipment, and corrective actions are taken within 5 days and completed within 15 days. [R307-508-3(3)] In Compliance. Records observed at local field office and appear to be orderly and complete. Applicable Federal Regulations: 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. Requested records were provided in a timely manner and reviewed at the local field office. RECOMMENDATION FOR NEXT INSPECTION: The last DAQ inspector found T12 controller leaking in January 2024. Source was re-inspected in November of 2024 by two DAQ inspectors. Upon the latest visit, source was found to be In Compliance. DAQ suggests next inspection to occur within a minimum of two years. RECOMMENDATIONS FOR NSR: None. ATTACHMENTS: None.