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Home My WebLink About20160201.tiff 41/4 CDPHE COLORADO CO ' Department of Public Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado Weld County - Clerk to the Board RECEIVED 11500 St PO Box 758 JAN 1 2 ?_r,' Greeley, CO 80632 WELD COUNTY January 6, 2016 COMMISSIONERS Dear Sir or Madam: On January 13, 2016, the Air Pollution Control Division will begin a 30-day public notice period for Bill Barrett Corporation - 19141_Anschutz Equus Farms 4-62-15_22 NE Pad. A copy of this public notice and the public comment packet are enclosed. Thank you for assisting the Division by posting a copy of this public comment packet in your office. Public copies of these documents are required by Colorado Air Quality Control Commission regulations. The packet must be available for public inspection for a period of thirty (30) days from the beginning of the public notice period. Please send any comment regarding this public notice to the address below. Colorado Dept. of Public Health Et Environment APCD-SS-B1 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 Attention: Clara Gonzales Regards, /, `) ./_ 4.. /L2 %..t, , J Clara Gonzales Public Notice Coordinator Stationary Sources Program Air Pollution Control Division Enclosure Tu-locAe.Z.AJI ev,) 2016-0201 4300 Cherry Creek Drive S., Denver, CO 80246-1530 P 303-692-2000 www.colorado.gov/cdphe !,•T ,Li �, . H� . . ..J John W. Hickenlooper, Governor I Larry Wolk,MD, MSPH, Executive Director and Chief Medical Officer 1., . rrv- j.. '`l/*1 CDPHE Air Pollution Control Division Co Notice of a Proposed Project or Activity Warranting Public Comment Website Title: Bill Barrett Corporation - 19141_Anschutz Equus Farms 4-62-15_22 NE Pad - Weld County Notice Period Begins: January 13, 2016 Notice is hereby given that an application for a proposed project or activity has been submitted to the Colorado Air Pollution Control Division for the following source of air pollution: Applicant: Bill Barrett Corporation Facility: 19141_Anschutz Equus Farms 4-62-15_22 NE Pad Exploration Et Production Site NWNE Sec. 15 T4N R62W Weld County The proposed project or activity is as follows: New multiple well facility with six (6) 3-phase high-pressure gas separators, two (2) heated low-pressure separators and two (2) VRTs used to collect flash emissions. Flash emissions captured by three (3) VRUs, and sent to six (6) enclosed combustors during VRU bypass. Condensate and produced water storage tanks onsite are controlled by the 6 enclosed flares. The Division has determined that this permitting action is subject to public comment per Colorado Regulation No. 3, Part B, Section III.C due to the following reason(s): • permitted emissions exceed public notice threshold values in Regulation No. 3, Part B, Section III.C.1.a (25 tpy in a non-attainment area and/or 50 tpy in an attainment area) • the source is requesting a federally enforceable limit on the potential to emit in order to avoid other requirements The Division has made a preliminary determination of approval of the application. A copy of the application, the Division's analysis, and a draft of Construction Permit 15WE1288 have been filed with the Weld County Clerk's office. A copy of the draft permit and the Division's analysis are available on the Division's website at https://www.colorado.gov/pacific/cdphe/air-permit-public-notices The Division hereby solicits submission of public comment from any interested person concerning the ability of the proposed project or activity to comply with the applicable standards and regulations of the Commission. The Division will receive and consider written public comments for thirty calendar days after the date of this Notice. Any such comment must be submitted in writing to the following addressee: Betsy Gillard Colorado Department of Public Health and Environment 4300 Cherry Creek Drive South, APCD-SS-B1 Denver, Colorado 80246-1530 cdphe.commentsapcd@state.co.us 1 I /� - COLORADO AV (x�yMN.vi4afT)4: STATE OF COLORADO AIR POLLUTION CONTROL DIVISION DRAFT HEALTH AND ENVIRONMENT l tn _t' TELEPHONE: (303)692-3150 .* .s. ; ) ** •/8764' CONSTRUCTION PERMIT PERMIT NO: 15WE1288 Issuance I DATE ISSUED: ISSUED TO: Bill Barrett Corporation THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas exploration and production facility known as the 19141_Anchutz Equus Farms 4-62-15_22 NE Pad, located in the NWNE Sec. 15 T4N R62W, Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID Cond. Ten (10) above ground 400 bbl atmospheric condensate storage Tanks 004 tanks controlled by six (6) enclosed flares Cond. LO 005 Hydrocarbon Loadout to Tanker Trucks Two (2) heated separators and two (2) VRTs controlled by six (6) VRU enclosed flares during VRU bypass. Condensate throughput during Bypass 006 VRU bypass is estimated to be 6% of throughput. Flares have a minimum control efficiency of 95%. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION AND CONTROL ACT C.R.S. (25-7-101 et seq), TO THOSE GENERAL TERMS AND CONDITIONS INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION 1. YOU MUST notify the Air Pollution Control Division (the Division) no later than fifteen days after commencement of operation or issuance of this permit, whichever comes later, by submitting a Notice of Startup form to the Division. The Notice of Startup form may be downloaded , online at www.cdphe.state.co.us/ap/downloadforms.html. Failure to notify the Division of startup of the permitted source is a violation of Air Quality Control Commission (AQCC) Regulation No. 3, Part B, Section III.G.1 and can result in the revocation of the permit. 2. Within one hundred and eighty days (180) after commencement of operation or issuance of this permit, whichever comes later, compliance with the conditions contained in this permit shall be demonstrated to the Division. It is the owner or operator's responsibility to AIRS ID: 123/9DBB Page 1 of 14 IT) olor Depa enL P li it PoHealthllutionand Control DivisionEnvironment • self-certify compliance with the conditions ilure'to demonstrate compliance within 180 days may result in revocation of the permit. (Reference: Regulation No. 3, Part B, III.G.2). 3. This permit shall expire if the owner or operator of the source for which this permit was issued: (i) does not commence construction/modification or operation of this source I within 18 months after either, the date of issuance of this construction permit or the date on which such construction or activity was scheduled to commence as set forth in the permit application associated with this permit; (ii) discontinues construction for a period of eighteen months or more; (iii) does not complete construction within a reasonable time of the estimated completion date. The Division may grant extensions of the deadline per Regulation No. 3, Part B, III.F.4.b. (Reference: Regulation No. 3, Part B, III.F.4.) 4 The operator shall complete all initial compliance testing and sampling as required in this permit and submit the results to the Division as part of the self-certification process. (Reference: Regulation No. 3, Part B, Section III.E.) 5. Point 006: The following information shall be provided to the Division within fifteen (15) days after issuance of permit. • manufacturer • model number • serial number This information shall be included with the Notice of Startup submitted for the equipment. (Reference: Regulation No. 3, Part B, III.E.) 6. The operator shall retain the permit final authorization letter issued by the Division, after completion of self-certification, with the most current construction permit. This construction permit alone does not provide final authority for the operation of this source. EMISSION LIMITATIONS AND RECORDS 7. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis). (Reference: Regulation No. 3, Part B, Section II.A.4) Annual Limits: Facility AIRS Tons per Year Equipment ID Point NO VOC CO Emission Type X Cond.Tanks 004 0.4 8.4 1.9 Point Cond. LO 005 -- 46.8 -- Point VRU Bypass 006 0.3 12.7 1.5 Point See "Notes to Permit Holder"for information on emission factors and methods used to calculate limits. Facility-wide emissions of each individual hazardous air pollutant shall be less than 8.0 tpy. AIRS ID: 123/9DBB Page 2 of 14 olor pa en P li ealth and Environment it Pollution Control Division Facility-wideJJf us nts s less than 20.0 tpy. Compliance with the annual limits shall be determined by recording the facility's annual criteria pollutant emissions, (including all HAPs above the de-minimis reporting level) from each emission unit, on a rolling twelve (12) month total. By the end of each month a new twelve-month total shall be calculated based on the previous twelve months' data. The permit holder shall calculate emissions each month and keep a compliance record on site or at a local field office with site responsibility, for Division review. This rolling twelve-month total shall apply to all permitted emission units, requiring an APEN, at this facility. 8. The emission points in the table below shall be operated and maintained with the control equipment as listed in order to reduce emissions to less than or equal to the limits established in this permit (Reference: Regulation No.3, Part B, Section III.E.) Facility AIRS Pollutants Equipment Point Control Device Controlled ID Cond. 004 Six(6) Enclosed Flares VOCs, HAPs Tanks VRU 006 Six(6) Enclosed Flares VOCs, HAPs Bypass PROCESS LIMITATIONS AND RECORDS 9. This source shall be limited to the following maximum processing rates as listed below. Monthly records of the actual processing rates shall be maintained by the owner or operator and made available to the Division for inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Process/Consumption Limits Facility AIRS Equipment Point Process Parameter Annual Limit ID Cond. 004 Condensate Throughput 450,000 BBL Tanks Cond. LO 005 Oil Loaded 450,000 BBL VRU 006 Condensate Throughput to separators and 27,000 BBL Bypass VRTs while VRUs are being bypassed Compliance with the annual throughput limits shall be determined on a rolling twelve (12) month total. By the end of each month a new twelve-month total is calculated based on the previous twelve months' data. The permit holder shall calculate throughput each month and keep a compliance record on site or at a local field office with site responsibility, for Division review. STATE AND FEDERAL REGULATORY REQUIREMENTS 10. Point 006: The permit number and AIRS ID point number (e.g. 123/4567/890) shall be marked on the subject equipment for ease of identification. (Reference: Regulation Number 3, Part B, III.E.) (State only enforceable) AIRS ID: 123/9DBB Page 3 of 14 olor Depa en . P di Health and Environment it Pollution Control Division 11. Visible emissiDnot i5 ty 0%) •J. .ty during normal operation of the source. During periods of startup, process modification, or adjustment of control equipment visible emissions shall not exceed 30% opacity for more than six minutes in any sixty consecutive minutes. Emission control devices subject to Regulation 7, Sections XII.C.1.d or XVII.B.2.b shall have no visible emissions. (Reference: Regulation u No. 1, Section II.A.1. &4.) 12. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 13. Point 004: No owner or operator of a smokeless flare or other flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30% opacity for a period or periods aggregating more than six minutes in any sixty consecutive minutes. (Reference: Regulation No. 1, Section II.A.5.) 14. Point 004: The enclosed combustion devices covered by this permit are subject to Regulation No. 7, Section XII.C General Provisions (State only enforceable). If a combustion device is used to control emissions of volatile organic compounds to comply with Section XII.D, it shall be enclosed, have no visible emissions, and be designed so that an observer can, by means of visual observation from the outside of the enclosed combustion device, or by other means approved by the Division, determine whether it is operating properly. The operator shall comply with all applicable requirements of Section XII. 15. Point 004: This source is subject to the recordkeeping, monitoring, reporting and emission control requirements of Regulation 7, Section XII. The operator shall comply with all applicable requirements of Section XII. 16. Point 004: The condensate storage tanks covered by this permit are subject to Regulation 7, Section XVII.C emission control requirements. These requirements include, but are not limited to: XVII.C.1.a. Beginning May 1, 2008, owners or operators of all atmospheric condensate storage tanks with uncontrolled actual emissions of volatile organic compounds equal to or greater than 20 tons per year based on a rolling twelve-month total shall operate air pollution control equipment that has an average control efficiency of at least 95% for VOCs on such tanks. 17. Points 004, 006: The enclosed combustion devices covered by this permit are subject to Regulation No. 7, Section XVII.B General Provisions (State only enforceable). These requirements include, but are not limited to: XVII.B.2.b If a combustion device is used to control emissions of volatile organic compounds to comply with Section XVII, it shall be enclosed, have no visible emissions during normal operations, and be designed so that an observer can, by means of visual observation from the outside of the enclosed combustion device, or by other means approved by the Division, determine whether it is operating properly. XVII.B.2.d Auto-igniters: All combustion devices used to control emissions of hydrocarbons installed on or after May 1, 2014 must be equipped with and operate an auto-igniter. AIRS ID: 123/9DBB Page 4 of 14 olor epa en P Ii Health and Environment it Pollution Control Division 18. Point 004: The storage tanks covered by this permit are subject to Regulation 7, Section XVII.C emission control requirements. These requirements include, but are not limited to: Section XVII.C.1. Control and monitoring requirements for storage tanks XVII.C.1.b. Owners or operators of storage tanks with uncontrolled actual emissions of VOCs equal to or greater than six (6) tons per year based on a rolling twelve- month total must operate air pollution control equipment that achieves an average hydrocarbon control efficiency of 95%. If a combustion device is used, it must have a design destruction efficiency of at least 98% for hydrocarbons. XVII.C.1.b.(i)(a) Control requirements of Section XVII.C.1.b. must be achieved within ninety (90) days of the date that the storage tank commences operation. XVII.C.1.d. Beginning May 1, 2014, or the applicable compliance date in Section XVII.C.1.b.(i), whichever comes later, owners or operators of storage tanks subject to Section XVII.C.1. must conduct audio, visual, olfactory ("AVO") and additional visual inspections of the storage tank and any associated equipment (e.g. separator, air pollution control equipment, or other pressure reducing equipment) at the same frequency as liquids are loaded out from the storage tank. These inspections are not required more frequently than every seven (7) days but must be conducted at least every thirty one (31) days. Monitoring is not required for storage tanks or associated equipment that are unsafe, difficult, or inaccessible to monitor, as defined in Section XVII.C.1.e. The additional visual inspections must include, at a minimum: XVII.C.1.d.(i) Visual inspection of any thief hatch, pressure relief valve, or other access point to ensure that they are closed and properly sealed; XVII.C.1.d.(ii) Visual inspection or monitoring of the air pollution control equipment to ensure that it is operating, including that the pilot light is lit on combustion devices used as air pollution control equipment; XVII.C.1,d.(iii) If a combustion device is used, visual inspection of the auto-igniter and valves for piping of gas to the pilot light to ensure they are functioning properly; XVII.C.1.d.(iv) Visual inspection of the air pollution control equipment to ensure that the valves for the piping from the storage tank to the air pollution control equipment are open; and XVII.C.1.d.(v) If a combustion device is used, inspection of the device for the presence or absence of smoke. If smoke is observed, either the equipment must be immediately shut-in to investigate the potential cause for smoke and perform repairs, as necessary, or EPA Method 22 must be conducted to determine whether visible emissions are present for a period of at least one (1) minute in fifteen (15) minutes. XVII.C.1.e. If storage tanks or associated equipment is unsafe, difficult, or inaccessible to monitor, the owner or operator is not required to monitor such equipment until it becomes feasible to do so. AIRS ID: 123/9DBB Page 5 of 14 DRolora * Depa en P li Health and Environment it Pollution Control Division XVII.C.2. Capture and monitoring.ieq for age tanks that are fitted with air pollution control equipment as required by Sections XII.D. or XVII.C.1. XVII.C.2.a. Owners or operators of storage tanks must route all hydrocarbon emissions to air pollution control equipment, and must operate without venting hydrocarbon emissions from the thief hatch (or other access point to the tank) or pressure relief device during normal operation, unless venting is reasonably required for maintenance, gauging, or safety of personnel and equipment. Compliance must be achieved in accordance with the schedule in Section XVII.C.2.b.(ii). XVII.C.2.b. Owners or operators of storage tanks subject to the control requirements of Sections XII.D.2., XVII.C.1.a, or XVII.C.1.b. must develop, certify, and implement a documented Storage Tank Emission Management System ("STEM") plan to identify, evaluate, and employ appropriate control technologies, monitoring practices, operational practices, and/or other strategies designed to meet the requirements set forth in Section XVII.C.2.a. Owners or operators must update the STEM plan as necessary to achieve or maintain compliance. Owners or operators are not required to develop and implement STEM for storage tanks containing only stabilized liquids. The minimum elements of STEM are listed below. XVII.C.2.b.(i) STEM must include selected control technologies, monitoring practices, operational practices, and/or other strategies; procedures for evaluating ongoing storage tank emission capture performance; and monitoring in accordance with approved instrument monitoring methods following the applicable schedule in Section XVII.C.2.b.(ii) and Inspection Frequency in Table 1. XVII.C.2.b.(ii) Owners or operators must achieve the requirements of Sections XVII.C.2.a. and XVII.C.2.b. and begin implementing the required approved instrument monitoring method in accordance with the following schedule: XVII.C.2.b.(ii)(a) A storage tank constructed on or after May 1, 2014, must comply with the requirements of Section XVII.C.2.a. by the date the storage tank commences operation. The storage tank must comply with Section XVII.C.2.b. and implement the approved instrument monitoring method inspections within ninety (90) days of the date that the storage tank commences operation. XVII.C.2.b.(ii)(d) Following the first approved instrument monitoring method inspection, owners or operators must continue conducting approved instrument monitoring method inspections in accordance with the Inspection Frequency in Table 1. AIRS ID: 123/9DBB Page 6 of 14 010r: Depa en P li eaith and Environment D i it Pollution Control Division a• - —St• -• kIns ns Threshold: Storage Tank Approved Instrument Phase-In Schedule Uncontrolled Actual VOC Monitoring Method Emissions (tpy) Inspection Frequency >6 and < 12 Annually January 1, 2016 > 12 and < 50 Quarterly July 1, 2015 > 50 Monthly January 1, 2015 XVII.C.2.b.(iii) Owners or operators are not required to monitor storage tanks and associated equipment that are unsafe, difficult, or inaccessible to monitor, as defined in Section XVII.C.1.e. XVII.C.2.b.(iv) STEM must include a certification by the owner or operator that the selected STEM strategy(ies) are designed to minimize emissions from storage tanks and associated equipment at the facility(ies), including thief hatches and pressure relief devices. XVII.C.3. Recordkeeping XVII.C.3. The owner or operator of each storage tank subject to Sections XII.D. or XVII.C. must maintain records of STEM, if applicable, including the plan, any updates, and the certification, and make them available to the Division upon request. In addition, for a period of two (2) years, the owner or operator must maintain records of any required monitoring and make them available to the Division upon request, including: XVII.C.3.a. The AIRS ID for the storage tank. XVII.C.3.b. The date and duration of any period where the thief hatch, pressure relief device, or other access point are found to be venting hydrocarbon emissions, except for venting that is reasonably required for maintenance, gauging, or safety of personnel and equipment. XVII.C.3.c. The date and duration of any period where the air pollution control equipment is not operating. XVII.C.3.d. Where a combustion device is being used, the date and result of any EPA Method 22 test or investigation pursuant to Section XVII.C.1.d.(v). XVII.C.3.e. The timing of and efforts made to eliminate venting, restore operation of air pollution control equipment, and mitigate visible emissions. XVII.C.3.f. A list of equipment associated with the storage tank that is designated as unsafe, difficult, or inaccessible to monitor, as described in Section XVII.C.1.e., an explanation stating why the equipment is so designated, and the plan for monitoring such equipment. AIRS ID: 123/9DBB Page 7 of 14 olor epa en P Ii ealth and Environment it Pollution Control Division 19. Point 005: This source is located i ne ttainment or attainment- maintenance area and is subject to the Reasonably Available Control Technology (RACT) requirements of Regulation Number 3, Part B, III.D.2.a. Condensate loading to truck tanks shall be conducted by submerged fill. (Reference: Regulation 3, Part B, III.E) 20. Point 005: The owner or operator shall follow loading procedures that minimize the N leakage of VOCs to the atmosphere including, but not limited to (Reference: Regulation 3, Part B, III.E): a. Hoses, couplings, and valves shall be maintained to prevent dripping, leaking, or other liquid or vapor loss during loading and unloading. b. All compartment hatches (including thief hatches) shall be closed and latched at all times when loading operations are not active, except for periods of maintenance, gauging, or safety of personnel and equipment. c. The owner or operator shall inspect loading equipment and operations on site at the time of the inspection to ensure compliance with the conditions (a) and (b) above. The inspections shall occur at least monthly. Each inspection shall be documented in a log available to the Division on request. 21. Point 005: All hydrocarbon liquid loading operations, regardless of size, shall be designed, operated and maintained so as to minimize leakage of volatile organic compounds to the atmosphere to the maximum extent practicable. 22. Point 006: The separators and VRTs covered by this permit is subject to Regulation 7, Section XVII.G. (State Only). On or after August 1, 2014, gas coming off a separator, produced during normal operation from any newly constructed, hydraulically fractured, or recompleted oil and gas well, must either be routed to a gas gathering line or controlled from the date of first production by air pollution control equipment that achieves an average hydrocarbon control efficiency of 95%. If a combustion device is used, it must have a design destruction efficiency of at least 98% for hydrocarbons. OPERATING & MAINTENANCE REQUIREMENTS 23. Upon startup of these points, the owner or operator shall follow the most recent operating and maintenance (O&M) plan and record keeping format approved by the Division, in order to demonstrate compliance on an ongoing basis with the requirements of this permit. Revisions to your O&M plan are subject to Division approval prior to implementation. (Reference: Regulation No. 3, Part B, Section III.G.7.) 24. Within 180 days after issuance of this permit, the owner or operator shall continuously monitor and record VRU bypass time while emissions are routed to the Enclosed Control Devices using a SCADA (supervisory control and data acquisition) system. The owner or operator shall use monthly VRU downtime records, monthly hydrocarbon liquid throughput records and calculation methods detailed in the O&M Plan to demonstrate compliance with the process and emissions limits specified in this permit. After issuance of this permit and prior to startup of the SCADA monitoring system, the operator shall monitor and record VRU downtime manually through site visits a minimum of once per week until the SCADA monitoring system is continuously monitoring and recording VRU downtime, at which point the manual checks for VRU downtime are no longer required. If the VRU is observed to not be operating during a site visit, the operator must AIRS ID: 123/9DBB Page 8 of 14 r olor epa en, of P olic it PollutionHealth ControlandEnvironment Division , . , , it record downtime hours as the number of hours elapsed since the last time the VRU was observed to be operating. COMPLIANCE TESTING AND SAMPLING Initial Testing Requirements 25. The owner or operator shall demonstrate compliance with opacity standards, using EPA Method 22 to determine the presence or absence of visible emissions. "Visible Emissions" means observations of smoke for any period or periods of duration greater than or equal to one (1) minute in any fifteen (15) minute period during normal operation. (Reference: Regulation No. 7, Section XVII.A.II) ADDITIONAL REQUIREMENTS 26. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Regulation No. 3, Part A, II.C) a. Annually by April 30th whenever a significant increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change in actual emissions of five (5) tons per year or more, above the level reported on the last APEN; or For volatile organic compounds (VOC) and nitrogen oxides sources (NO„) in ozone nonattainment areas emitting less than 100 tons of VOC or NO, per year, a change in annual actual emissions of one (1) ton per year or more or five percent, whichever is greater, above the level reported on the last APEN; or For sources emitting 100 tons per year or more, a change in actual emissions of five percent or 50 tons per year or more, whichever is less, above the level reported on the last APEN submitted; or For any non-criteria reportable pollutant: If the emissions increase by 50% or five (5) tons per year, whichever is less, above the level reported on the last APEN submitted to the Division. b. Whenever there is a change in the owner or operator of any facility, process, or activity; or c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or d. Whenever a permit limitation must be modified; or e. No later than 30 days before the existing APEN expires. f. Within 14 calendar days of commencing operation of a permanent replacement engine under the alternative operating scenario outlined in this permit as Attachment A. The APEN shall include the specific manufacturer, model and serial number and horsepower of the permanent replacement engine, the appropriate APEN filing fee and a cover letter explaining that the owner or operator is exercising an alternative-operating scenario and is installing a permanent replacement engine. AIRS ID: 123/9DBB Page 9 of 14 olor Depa en P Ii Health and Environment it Pollution Control Division 27. Federal re ulatdi[.y g i l grain is NAN Title V Operating Permit) shall apply to this source at any such time that this source becomes major solely by virtue of a relaxation in any permit condition. Any relaxation that increases the potential to emit above the applicable Federal program threshold will require a full review of the source as though construction had not yet commenced on the source. The source shall not exceed the Federal program threshold until a permit is granted. (Regulation No. 3 Part D). GENERAL TERMS AND CONDITIONS 28. This permit and any attachments must be retained and made available for inspection upon request. The permit may be reissued to a new owner by the APCD as provided in AQCC Regulation No. 3, Part B, Section II.B upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 29. If this permit specifically states that final authorization has been granted, then the remainder of this condition is not applicable. Otherwise, the issuance of this construction permit does not provide "final" authority for this activity or operation of this source. Final authorization of the permit must be secured from the APCD in writing in accordance with the provisions of 25-7-114.5(12)(a) C.R.S. and AQCC Regulation No. 3, Part B, Section III.G. Final authorization cannot be granted until the operation or activity commences and has been verified by the APCD as conforming in all respects with the conditions of the permit. Once self-certification of all points has been reviewed and approved by the Division, it will provide written documentation of such final authorization. Details for obtaining final authorization to operate are located in the Requirements to Self- Certify for Final Authorization section of this permit. 30. This permit is issued in reliance upon the accuracy and completeness of information supplied by the owner or operator and is conditioned upon conduct of the activity, or construction, installation and operation of the source, in accordance with this information and with representations made by the owner or operator or owner or operator's agents. It is valid only for the equipment and operations or activity specifically identified on the permit. 31. Unless specifically stated otherwise, the general and specific conditions contained in this permit have been determined by the APCD to be necessary to assure compliance with the provisions of Section 25-7-114.5(7)(a), C.R.S. 32. Each and every condition of this permit is a material part hereof and is not severable. Any challenge to or appeal of a condition hereof shall constitute a rejection of the entire permit and upon such occurrence, this permit shall be deemed denied ab initio. This permit may be revoked at any time prior to self-certification and final authorization by the Air Pollution Control Division (APCD) on grounds set forth in the Colorado Air Quality Control Act and regulations of the Air Quality Control Commission (AQCC), including failure to meet any express term or condition of the permit. If the Division denies a permit, conditions imposed upon a permit are contested by the owner or operator, or the Division revokes a permit, the owner or operator of a source may request a hearing before the AQCC for review of the Division's action. 33. Section 25-7-114.7(2)(a), C.R.S. requires that all sources required to file an Air Pollution Emission Notice (APEN) must pay an annual fee to cover the costs of inspections and administration. If a source or activity is to be discontinued, the owner must notify the Division in writing requesting a cancellation of the permit. Upon notification, annual fee billing will terminate. AIRS ID: 123/9DBB Page 10 of 14 for Depa en P itIi Pollutionealth Controland DivisionEnvironment 34. Violation of theta o of sions e Colorado Air Pollution Prevention and Control Act or the regulations of the AQCC may result in administrative, civil or criminal enforcement actions under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122.1 (criminal penalties), C.R.S. By: Betsy Gillard Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to Bill Barrett Corporation AIRS ID: 123/9DBB Page 11 of 14 olo Depa en P Ii Health and Environment it Pollution Control Division l INotes to Permit Holder me o a . 1) The permit holder is required to pay fees for the processing time for this permit. An invoice for these fees will be issued after the permit is issued. The permit holder shall pay the invoice within 30 days of receipt of the invoice. Failure to pay the invoice will result in revocation of this permit (Reference: Regulation No. 3, Part A, Section VI.B.) 2) The production or raw material processing limits and emission limits contained in this permit are based on the consumption rates requested in the permit application. These limits may be revised upon request of the owner or operator providing there is no exceedance of any specific emission control regulation or any ambient air quality standard. A revised air pollution emission notice (APEN) and complete application form must be submitted with a request for a permit revision. 3) This source is subject to the Common Provisions Regulation Part II, Subpart E, Affirmative Defense Provision for Excess Emissions During Malfunctions. The owner or operator shall notify the Division of any malfunction condition which causes a violation of any emission limit or limits stated in this permit as soon as possible, but no later than noon of the next working day, followed by written notice to the Division addressing all of the criteria set forth in Part II.E.1 of the Common Provisions Regulation. See: http://www.colorado.gov/cs/Satellite?c=Document C&childoagename=CDPHE- Ulain%2FDocument C%2FCBONAddLinkView&cid=1251599389641&pagename=CBONWrarmer 4) The following emissions of non-criteria reportable air pollutants are estimated based upon the process limits as indicated in this permit. This information is listed to inform the operator of the Division's analysis of the specific compounds emitted if the source(s) operate at the permitted limitations. Uncontrolled Emission Are the Controlled AIRS Rate emissions Emission Rate Point Pollutant CAS# (lb/yr) reportable? (Ib/yr) Benzene 71432 1043 Yes 52 n-Hexane 110543 5553 Yes 278 004 Toluene 108883 636 Yes 32 2,2,4-TMP 540841 729 Yes 36 Benzene 71432 289 Yes N/A n-Hexane 110543 1541 Yes N/A Toluene 108883 176 No N/A 005 Ethylbenzene 100414 24 No N/A Xylenes 1330207 43 No N/A 2,2,4-TMP 540841 202 No N/A Benzene 71432 2069 Yes 103 n-Hexane 110543 11251 Yes 563 Toluene 108883 1557 Yes 78 006 Ethylbenzene 100414 263 Yes 13 Xylenes 1330207 494 Yes 25 2,2,4-TMP 540841 1698 Yes 85 AIRS ID: 123/9DBB Page 12 of 14 olor Depa ent P ..blic�H r Pollutionealthand Control DivisionEnvironment 5) The emission levels contained in this permit are based on the following emission factors: Point 004: Emission Factors Uncontrolled Pollutant Ib/BBL Source Condensate Throughput VOC 0.7495 ProMax/Tanks n-Hexane 0.0123 ProMax/Tanks Benzene 0.0023 ProMax/Tanks Toluene 0.0014 ProMax/Tanks 2,2,4-TMP 0.0016 ProMax/Tanks Note: The controlled emissions for this point are based on the flare control efficiency of 95%. Point 005: Emission Factors - Uncontrolled Pollutant Ib/BBL loaded I Source VOC 0.2080 AP-42 Benzene 0.0007 AP-42 n-Hexane 0.0034 AP-42 Toluene 0.0004 AP-42 Xylenes 0.0001 AP-42 The uncontrolled VOC emission factor was calculated using AP-42, Chapter 5.2, Equation 1 (version 1/95) using the following values: L= 12.46"S`P*M/T S = 0.6 (Submerged loading: dedicated normal service) P (true vapor pressure) = 5.2 psia M (vapor molecular weight) =66 Ib/Ib-mol T(temperature of liquid loaded) = 518 °R The uncontrolled non-criteria reportable air pollutant (NCRP) emission factors were calculated by multiplying the mass fraction of each NCRP in the VOC vapors from the ProMax by the VOC emission factor. Point 006: Molar Emission Pollutant Fraction of Factors Source Gas (%) Uncontrolled Ib/bbl NOx -_- 0.068 AP-42 (lb/MMBTU) _ CO 0.37 AP 42 (Ib/MMBTU) AIRS ID: 123/9DBB Page 13 of 14 olor Depa en P tic d it PollutionHealthan Control DivisionEnvironment Molar I Emission Pollutant Fraction of Factors Source Gas(%) Uncontrolled Ib/bbl VOC I 64.86 18.7532 ProMax Benzene 0.18 0.0766 ProMax N Toluene 0.11 0.0577 ProMax Ethylbenzene I 0.02 0.0097 ProMax Xylenes I 0.03 I 0.0183 I ProMax n-hexane I 0.88 I 0.4167 ProMax 6) In accordance with C.R.S. 25-7-114.1, each Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five years from the date it was received by the Division. A revised APEN shall be submitted no later than 30 days before the five-year term expires. Please refer to the most recent annual fee invoice to determine the APEN expiration date for each emissions point associated with this permit. For any questions regarding a specific expiration date call the Division at (303)-692-3150. 7) This facility is classified as follows: Applicable Status Requirement Operating Permit Synthetic Minor Source of: _NOx,VOC, CO, n-Hexane NANSR Synthetic Minor Source of: NOx, VOC MACT HH Major Source Requirements: Not Applicable Area Source Requirements: Not Applicable . 8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be found at the website listed below: http://ecfr.gpoaccess.gov/ Part 60: Standards of Performance for New Stationary Sources NSPS 60.1-End Subpart A—Subpart KKKK NSPS Part 60, Appendixes Appendix A—Appendix I — Part 63: National Emission Standards for Hazardous Air Pollutants for Source Categories MACT 63.1-63.599 • Subpart A—Subpart Z MACT 63.600-63.1199 Subpart AA—Subpart DDD MACT 63.1200-63.1439 Subpart EEE-Subpart PPP MACT 63.1440-63.6175 Subpart QQQ—Subpart YYYY MACT 63.6580-63.8830 Subpart ZZZZ—Subpart MMMMM MACT 63.8980-End Subpart NNNNN —Subpart XXXXXX 9) A self certification form and guidance on how to self-certify compliance as required by this permit may be obtained online at: http://www coloredo govipacific/cdphe/air-permit-self-certification. AIRS ID: 123/9DBB Page 14 of 14 Division Information Engineer: Betsy Gillard Control Engineer: Stefanie Rucker Review Date: 12/29/2015 Application Date: 09/03/2015 Facility Identifiers Permit No. 15WE1288 Potentially located in ozone nonattainment area AIRs County# 123 'Weld Facility# 9DBB Facility Type: exploration and production facility ❑� Located in the 8-hour non-attainment area? O True Minor ®Synthetic Minor for: VOC J;i NOx 17 CO Administrative Information Company Name: Bill Barrett Corporation Source Name: 19141_Anchutz Equus Farms 4-62-15_22 NE Pad Source Location: NWNE Sec. 15 T4N R62W SIC: 1311 Address 1: Bill Barrett Corporation Mailing Address Address 2: 1099 18th Street, Suite 2300 ty,State Zip: Denver,CO 80202 Name: Rusty Frishmuth Person To Phone: 303-312-8718 Contact Fax: Email: rfrishmuth@billbarrettcorp.com Requested Action Self Certification Required? Yes Issuance Number: 1 Source Description: Oil and gas exploration and production facility known as the 19141_Anchutz Equus Farms 4-62-15_22 NE Pad, located in the NWNE Sec. 15 T4N R62W,Weld County, Colorado. Point Name Type Control Action Newly 004 Cond. Tanks Condensate Tanks Flare reported source Newly 005 Cond. LO Loadout None reported source Newly 006 VRU Bypass Separator Venting Flare reported source 004 Ten (10) above ground 400 bbl atmospheric condensate storage tanks controlled by six (6)enclosed flares Requsted Throughput 450000 bbl Control Flare Efficiency 95.00%I Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 0.7495 lb/bbl 168.6 tpy 8.4 tpy ProMax/Tanks Nox 0.068 lb/MMBtu -- tpy 0.4 tpy AP-42 CO 0.37 lb/MMBtu -- tpy 1.9 tpy AP-42 Benzene 0.0023 lb/bbl 1035 lb/yr 52 Ib/yr ProMax/Tanks Toluene 0.0014 lb/bbl 630 lb/yr 32 lb/yr ProMax/Tanks n-Hexane 0.0123 lb/bbl 5535 lb/yr 277 lb/yr ProMax/Tanks '2,2,4-IMP 0.0016 lb/bbl 720 lb/yr 36Ib/yr iProMax/Tanks Regulatory Review Section II.A.1 - Except as provided in paragraphs 2 through 6 below, no owner or operator of a source shall allow or cause the emission into the atmosphere of any air pollutant which is in excess of 20%opacity. This standard is based on 24 consecutive opacity readings taken at 15-second intervals for six minutes. The approved reference test method for visible emissions measurement is EPA Method 9 (40 CFR, Part 60, Appendix A(July, 1992)) in all subsections of Section II. A and B of this regulation. Section II.A.5 - Smokeless Flare or Flares for the Combustion of Waste Gases No owner or operator of a smokeless flare or other flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30% opacity for a period or periods aggregating more than six minutes in any sixty consecutive minutes. Regulation 2 - Odor Section LA- No person,wherever located, shall cause or allow the emission of odorous air contaminants from any single source such as to result in detectable odors which are measured in excess of the following limits: For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven (7) or more volumes of odor free air. Regulation 6 - New Source Performance Standards NSPS Kb: for storage vessels greater than 19,800 gallons after 7/23/84. This source is not subject because each tank is less than 19,800 gallons(471 bbl) NSPS OOOO:for storage vessels in the natural gas production,transmission, and processing segments. This source is not subject because each tank emits less than 6 tpy VOC. Regulation 7 - Volatile Organic Compounds XII. VOLATILE ORGANIC COMPOUND EMISSIONS FROM OIL AND GAS OPERATIONS Applicant is subject to the emission control requirements for condensate tanks since it is located in a nonattainment area. XVII.C STATEWIDE CONTROLS FOR OIL AND GAS OPERATIONS... Applicant is subject because actual uncontrolled emissions are greater than 20 tpy of VOC. 005 Hydrocarbon Loadout to Tanker Trucks Calculations L=12.46*S*P*M/T(AP-42:Chapter 5.2, Equation 1) L=loading losses in lb per 1000 gallons loaded Factor Meaning Value Units Source S Saturation Factor 0.6 AP-42 P True Vapor Pressure 5.2 psia AP-42 M Molecular Weight of Vap 66 lb/lb-mole AP-42 T Liquid Temperature 518.2 deg. R Field Data L 4.95 lb/10^3 gal 2.08E-01 lb/bbl Annual requested Throughput 450000 BBL/yr 18900000 gal/yr Annual requested VOC emissions 93580 lb/yr 46.79 tpy Control: None Efficiency: 0.00% NCRPs Component Mass Fraction Benzene 0.0031 n-hexane 0.0165 Toluene 0.0019 Xylenes 0.0005 Source: ProMax Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 0.2080 lb/bbl 46.8 tpy 46.8 tpy AP-42 Benzene 0.0006 lb/bbl 289 lb/yr 289 lb/yr AP-42 n-Hexane 0.0034 lb/bbl 1540 lb/yr 1540 lb/yr AP-42 Toluene 0.0004 lb/bbl 177 lb/yr 177 lb/yr AP-42 Xylenes 0.0001 lb/bbl 43 lb/yr 43 lb/yr AP-42 Regulatory Review Regulation 3-APEN and Permitting Requirements Is this site considered an exploration and production location(e.g.well pad)? Yes If yes, review the following two exemptions for applicability: Does the operator unload less than 10,000 gallons(238 BBLs)per day of crude oil on an annual average basis? No If yes,this emissions point is categorically exempt from permit requirements per Regulation 3,Part B,Section II.D 1.1 Does this operator unload less than 6,750 bbls per year of condensate via splash fill or 16,308 bbls per year of condensate via submerged fill procedure? No If yes,this emissions point is categorically exempt from permit requirements per Regulation 3,Part B,Section II.D 1.1 006 Two (2) heated separators and two (2)VRTs controlled by six(6) enclosed flares during VRU bypass. VRU bypass is estimated to be 6% of total condensate throughput. Flares have a minimum control efficiency of 95%. Requsted Throughput 27000 bbl Control Flare Efficiency 95.00%1 Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 18.7532 lb/bbl 253.2 tpy 12.7 tpy ProMax/Tanks Nox 0.068 lb/MMBtu -- tpy 0.3 tpy AP-42 Co 0.37 lb/MMBtu - tpy 1.5 tpy AP-42 Benzene 0.0766 lb/bbl 2068 lb/yr 103 lb/yr ProMax Toluene 0.05771b/bbl 1558 lb/yr 78 lb/yr ProMax Ethylbenze 0.0097 lb/bbl 262 lb/yr 13 lb/yr ProMax Xylenes 0.0183Ilb/bbl 494 lb/yr 25 lb/yr ProMax n-Hexane 0.4167 lb/bbl 11251 lb/yr 563 lb/yr ProMax 2,2,4-TMP 0.0629 lb/bbl 1698 lb/yr 85 lb/yr ProMax Vented Gas Properties Mol% Mol.Wt. VOC Benzene Toluene Ethyl benzene Xylene n-Hexane 43.26 64.86 0.18 0.11 0.02 0.03 0.88 Mol%from weighted average of Flash Gas to VRU and VRT Gas to VRU streams from ProMax Regulatory Review AQCC Regulation 1 This source is subject to the opacity requirements for flares in Section II.A.5:'No owner or operator of a smokeless flare or other flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30% opacity.' AQCC Regulation 2 Section I.A applies to all emission sources. "No person, wherever located, shall cause or allow the emission of odorous air contaminants from any single source such as to result in detectable odors which are measured in excess of the following limits: For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven (7)or more volumes of odor free air." 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