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Utah Administrative Code (Current through November 1, 2019) |
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R307. Environmental Quality, Air Quality |
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R307-506. Oil and Gas Industry: Storage Vessel |
| R307-506-1. Purpose |
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R307-506 establishes requirements to control emissions of volatile organic compounds (VOCs) from storage vessels associated with a well site. |
| R307-506-2. Definitions |
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"Centralized Tank Battery" means a separate tank battery surface site collecting crude oil, condensate, intermediate hydrocarbon liquids, or produced water from wells not located at the well site. "Emergency Relief Storage Vessel" means a storage vessel receiving oil, condensate, or produced water as a result of emergency situations, process upsets, or other equipment malfunctions. "Modification to a well site" means; (1) a new well is drilled at an existing well site, (2) a well at an existing well site is hydraulically fractured, or (3) a well at an existing well site is hydraulically refractured. "Storage Vessel" means storage vessel as defined in 40 CFR 60.5430a, Subpart OOOOa Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution, which is incorporated by reference in R307-210. "Uncontrolled emissions" means actual emissions or the potential to emit without consideration of controls. |
| R307-506-3. Applicability |
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(1) R307-506 applies to each storage vessel located at a well site as defined in 40 CFR 60.5430a, Subpart OOOOa, Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution. (2) R307-506 shall apply to centralized tank batteries. (3) R307-506 does not apply to storage vessels that are subject to an approval order issued under R307-401-8. |
| R307-506-4. Storage Vessel Requirements |
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(1) Thief hatches on storage vessels shall be kept closed and latched except during vessel unloading or other maintenance activities. (2) All storage vessels located at a well site that are in operation as of January 1, 2018, with a site-wide throughput of 8,000 barrels or greater of crude oil or 2,000 barrels or greater of condensate per year on a rolling 12-month basis shall comply with R307-506-4(2)(a) unless the exemption in R307-506-4(2)(b) applies. (a) VOC emissions from storage vessels shall either be routed to a process unit where the emissions are recycled, incorporated into a product and/or recovered, or be routed to a VOC control device that is in compliance with R307-508. (b) All storage vessels located at a well site shall be exempt from R307-506-4(2)(a) if combined VOC emissions are demonstrated to be less than four tons per year of uncontrolled emissions on a rolling 12-month basis. (i) VOC working and breathing losses, and flash emissions shall be calculated using direct site-specific sampling data and any software program or calculation methodology in use by industry that is based on AP-42 Chapter 7. (3) All storage vessels that begin operations on or after January 1, 2018, are required to control VOC emissions in accordance with R307-506-4(2)(a) upon startup of operation for a minimum of one year. (4) An emergency storage vessel located at a well site shall be exempt from R307-506-4(2)(a), if it meets the following requirements: (i) The emergency storage vessel shall not be used as an active storage tank. (ii) The owner or operator shall empty the emergency storage vessel no later than 15 days after receiving fluids. (iii) The emergency storage vessel shall be equipped with a liquid level gauge or equivalent device. (5) An owner or operator that is required to control emissions in accordance with R307-506-4(2) and R307-506-4(3) shall inspect at least once a month each closed vent system, including vessel openings, thief hatches, and bypass devices, for defects that can result in air emissions according to 40 CFR 60.5416a(c). (a) If defects are discovered, the defects shall be corrected or repaired within 15 days of identification. (6) Modification to a well site shall require a re-evaluation of site-wide throughput and/or emissions in accordance with R307-506-4(2). (7) After a minimum of one year of operation, controls may be removed if site-wide throughput is less than 8,000 barrels of crude oil or 2,000 barrels of condensate on a rolling 12-month basis or uncontrolled actual emissions are demonstrated to be less than four tons per year. |
| R307-506-5. Recordkeeping |
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(1) Records of each closed vent system inspection, including vessel openings, thief hatches, pressure relief devices and bypass device shall be kept for three years. (a) Records of each closed vent system inspection, including vessel openings, thief hatches, pressure relief devices and bypass device shall include the date of the inspection, the status of each closed vent system, including vessel openings, thief hatches, pressure relief devices and bypass device, and the date of corrective action taken if required. (2) Records of crude oil throughput shall be kept for three years and shall be determined on a monthly basis using the production data reported to the Utah Division of Oil, Gas, and Mining. (3) Records of emission calculations, actual emissions, and site-specific sampling data used to determine compliance with R307-506-4(2)(b) shall be kept for a period of three years, post registration. (4) Records of emergency storage vessel usage shall be kept for a period of three years. (a) Records of emergency storage vessel usage shall include the date the vessel received fluids or was discovered to have received fluids, the date the overflow tank was emptied, and the volume of fluids emptied in barrels. |