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Home My WebLink About20161157 A CDPHE COLORADO Co 'of ,, Department of Public ° Health Er Environment Dedicated to protecting and improving the health and environment of the people of Colorado Weld County - Clerk to the Board 1150O St PO Box 758 Greeley, CO 80632 RECEIVED March 24, 2016 MAR 2 8 2016 TY COMMISSIIO ERS Dear Sir or Madam: On March 30, 2016, the Air Pollution Control Division will begin a 30-day public notice period for PDC Energy, Inc - Chesnut 27 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, a.. Clara Gonzales Public Notice Coordinator Stationary Sources Program Air Pollution Control Division Enclosure 2016-1157 4� 'pun, ctr-P AW; /0x9 Cherry Creek Drive S., Denver, CO 80246-1530 P 303-692-2000 www.colorado.gov/cdphe John W. Hickenlooper, Governor I Larry Wolk,MD,MSPH, Executive Director and Chief Medical Officer t876«, A CDPHE Air Pollution Control Division co Notice of a Proposed Project or Activity Warranting Public Comment Website Title: PDC Energy, Inc - Chesnut 27 Pad - Weld County Notice Period Begins: March 30, 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: PDC Energy, Inc Facility: Chesnut 27 Pad Oil and Gas Well Production Facility SWNW SEC 27 T5N R64W Weld County The proposed project or activity is as follows: Proposal to construct and operate an oil and gas well production facility and all associated equipment. 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 16WE0119.CP1 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: Christopher Kester 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 ( my C,0,,,L,,0 DRAFT CDPHE Construction Permit �" CO • Air Pollution Control Division Permit number: 16WE0119 Issuance: 1 Date issued: Issued to: PDC Energy, Inc. Facility Name: Chesnut 27 Pad Plant AIRS ID: 123/9E40 Physical Location: SWNW SEC 27 T5N R64W County: Weld County General Description: Well Production Facility Equipment or activity subject to this permit: Facility AIRS Emissions Control Equipment Point Equipment Description Description ID TK-1 009 Thirty two (32) 500 barrel fixed roof storage Bank of Twelve (12) vessels used to store condensate Enclosed Flares 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 the specific general terms and conditions included in this document and the following specific terms and conditions. REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION 1. Within one hundred and eighty days (180) of the latter of commencement of operation or issuance of this permit, compliance with the conditions contained in this permit shall be demonstrated to the Division. It is the owner or operator's responsibility to self-certify compliance with the conditions. Failure to demonstrate compliance within 180 days may result in revocation of the permit. A self certification form and guidance on how to self-certify compliance as required by this permit may be obtained online at www.colorado.gov/pacific/cdphe/air-permit-self-certification. (Regulation Number 3, Part B, Section III.G.2.) 2. 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 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. (Regulation Number 3, Part B, Section III.F.4.) F.4.) Srcra =T_Yk V-_r_icr S'rr vlincr :5'5-1 Page 1 of 9 II Alk 11 3. o. a s .11 " pl e all i ial compliance testing and sampling as required in this •ermi d l• it - - ults • he Division as part of the self-certification process. (Regulation Number 3, Part B, Section III.E.) 4. 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 Annual Limits: Facility AIRS Tons per Year Emission Type Equipment ID Point NOx VOC CO TK-1 009 1.3 15.1 2.5 Point Note: 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 not exceed 8.0 tons per year. Facility-wide emissions of total hazardous air pollutants shall not exceed 20.0 tons per year. The facility-wide emissions limitation for hazardous air pollutants shall apply to all permitted emission units at this facility. Compliance with the annual limits, for both criteria and hazardous air pollutants, 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 actual emissions each month and keep a compliance record on site or at a local field office with site responsibility for Division review. 5. The emission points in the table below shall be operated and maintained with the emissions control equipment as listed in order to reduce emissions to less than or equal to the limits established in this permit. (Regulation Number 3, Part B, Section III.E.) Facility AIRS Pollutants Equipment ID Point Control Device Controlled TK-1 009 Bank of Twelve (12) Enclosed Flares VOC and HAP PROCESS LIMITATIONS AND RECORDS 6. 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. (Regulation Number 3, Part B, II.A.4.) Process Limits Facility AIRS Process Parameter Annual Limit Equipment ID Point TK-1 009 Condensate 1,220,440 throughput 4 CDPHE COLORADO COt"-- Air Pollution Control Division s w a:ni 10,b4 ,{cat”,fb=_,;:0,, ,..,L Page 2 of 9 fi Thefo r'' o rat ha monito onthly process rates based on the calendar month. 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 7. The permit number and ten digit AIRS ID number assigned by the Division (e.g. 123/4567/001) shall be marked on the subject equipment for ease of identification. (Regulation Number 3, Part B, Section III.E.) (State only enforceable) 8. This permit fulfills the requirement to hold a valid permit reflecting the storage tank and associated control device per the Colorado Oil and Gas Conservation Commission rule 805b(2)(A) when applicable. 9. This source is subject to the odor requirements of Regulation Number 2. (State only enforceable) 10. This source is subject to Regulation Number 7, Section XII. The operator shall comply with all applicable requirements of Section XII and, specifically, shall: • Comply with the recordkeeping, monitoring, reporting and emission control requirements for condensate storage tanks; and • Ensure that the combustion device controlling emissions from this storage tank 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. (Regulation Number 7, Section XII.C.) (State only enforceable) 11. The combustion device covered by this permit is subject to Regulation Number 7, Section XVII.B.2. General Provisions (State only enforceable). If a flare or other 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 flare or combustion device, or by other convenient means approved by the Division, determine whether it is operating properly. This flare must be equipped with an operational auto-igniter according to the following schedule: • All combustion devices installed on or after May 1, 2014, must be equipped with an operational auto-igniter upon installation of the combustion device; • All combustion devices installed before May 1, 2014, must be equipped with an operational auto-igniter by or before May 1, 2016, or after the next combustion device planned shutdown, whichever comes first. 12. The storage tank covered by this permit is subject to the emission control requirements in Regulation Number 7, Section XVII.C.1. The owner or operator shall install and 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 except where the combustion device has been authorized by permit prior to May 1, 2014. The source shall follow the inspection requirements of Regulation Number 7, Section XVII.C.1.d. and maintain records of the inspections for a period of two years, made available to the Division upon request. This control requirement must be met within 90 days of the date that the storage tank commences operation. 13. The storage tanks covered by this permit are subject to the venting and Storage Tank Emission Management System ("STEM") requirements of Regulation Number 7, Section XVII.C.2. COPHE COLORADO CO Au Pollution Control Division � u�_ ro-r, Page 3 of 9 OPE'_PI Et ,1 EN, C 'Es REMEN 14. Upon startup of these points, the owner or operator shall follow the most recent operating and maintenance (OEtM) 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 the OEtM plan are subject to Division approval prior to implementation. (Regulation Number 3, Part B, Section III.G.7.) COMPLIANCE TESTING AND SAMPLING 15. This source is not required to comply with any testing and sampling requirements. ADDITIONAL REQUIREMENTS 16. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Regulation Number 3, Part A, II.C.) • 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 (NOr) 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. • Whenever there is a change in the owner or operator of any facility, process, or activity; or • Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or • Whenever a permit limitation must be modified; or • No later than 30 days before the existing APEN expires. 17. Federal regulatory program requirements (i.e. PSD, NANSR) 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 Number 3, Parts C and D). 18. MACT Subpart HH - National Emission Standards for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities major stationary source requirements shall apply to this stationary source at any such time that this stationary source becomes major solely by virtue of a relaxation in any permit limitation and shall be subject to all appropriate applicable requirements of Subpart HH. (Regulation Number 8, Part E, Subpart HH) COP ' COLORADO CO -f Air Pollution Control Division z: , putdw 1-I ' C_ ,, Page 4 of 9 x 4 • GEN -° • A C NDI ON 19. 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 Number 3, Part B, Section II.B. upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 20. 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 Number 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. 21. 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. 22. 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. 23. 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. 24. 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. 25. Violation of the terms of a permit or of the provisions of the 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: Christopher Kester Permit Engineer A GDP COLORADO Air Pollution Control Division ��.� „ Page 5 of 9 N._ it is; Issuance Date Description Issuance 1 This Issuance Issued to PDC Energy, Inc. CDP r COLORADO CO l3 Air Pollution Control Division ' ;;,u_ : .,,t Page 6 of 9 No r l th • this it issuance: 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. (Regulation Number 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: https://www.colorado.gov/pacific/cdphe/aqcc-regs 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. AIRS Uncontrolled Controlled Point Pollutant CAS # Emissions Emissions (Ib/yr) (Ib/yr) Benzene 71432 1529 76 Toluene 108883 2098 105 Ethylbenzene 100414 78 4 009 Xylenes 1130207 849 42 n-Hexane 110543 12882 644 2,2,4- 540841 772 39 Trimethylpentane Note: All non-criteria reportable pollutants in the table above with uncontrolled emission rates above 250 pounds per year(lb/yr) are reportable and may result in annual emission fees based on the most recent Air Pollution Emission Notice. COP COLORADO 43, �.� Air Pollutoxt Control DrIn ion Page 7 of 9 5) or si. t- ,-is •nt. ed this pe it are based on the following emission factors: Point 009: Uncontrolled Controlled CAS# Pollutant Emission Factors Emission Factors Source lb/bbl lb/bbl NOx 0.00200 0.00200 TNRCC Flare Emissions CO 0.00398 0.00398 Guidance VOC 0.49220 0.02461 71432 Benzene 0.001253 0.000063 Site Specific - 108883 Toluene 0.001719 0.000086 Developed with 100414 Ethylbenzene 0.000064 0.000003 Promax and site specific 1330207 Xylene 0.000696 0.000035 pressurized 110543 n-Hexane 0.010555 0.000528 hydrocarbon liquid 540841 2,2,4- samples Trimethylpentane 0.000632 0.000032 Note: The controlled emissions factors for this point are based on the flare control efficiency of 95%. 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 shalt 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: VOC NANSR Synthetic Minor Source of: VOC 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 coP E COLORADO CO Air Pollution Control Division t D«ar.,t,Ufu��:�f� �s�;,_,..,,,;v.,r,:��,� Page 8 of 9 1g'' 4 _ 3:: nd S rt NNNNN - Subpart XXXXXX come COLORADO CO ir Air Pollution Control Division Page 9 of 9 s CDPHE Construction Permit CO : Air Pollution Control Division Permit number: 16WE0120 Issuance: 1 Date issued: Issued to: PDC Energy, Inc. Facility Name: Chesnut 27 Pad Plant AIRS ID: 123/9E40 Physical Location: SWNW SEC 27 T5N R64W County: Weld County General Description: Well Production Facility Equipment or activity subject to this permit: Facility AIRS Emissions Control Equipment Point Equipment Description Description ID LOAD 010 Truck loadout of condensate Enclosed Flare 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 the specific general terms and conditions included in this document and the following specific terms and conditions. REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION 1. Within one hundred and eighty days (180) of the latter of commencement of operation or issuance of this permit, compliance with the conditions contained in this permit shall be demonstrated to the Division. It is the owner or operator's responsibility to self-certify compliance with the conditions. Failure to demonstrate compliance within 180 days may result in revocation of the permit. (Reference: Regulation No. 3, Part B, III.G.2). 2. 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 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.) 3. 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. -cr e-,a r ::•=r .,:;r ;'�A�nc� 5-1 Page 1 of 7 al A EMIS • IT S D CO, PS 4. Annual Limits: Facility AIRS Tons per Year Equipment Point Emission Type ID VOC LOAD 010 69.4 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. Facility-wide emissions of total hazardous air pollutants shall be 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 shalt apply to all permitted emission units, requiring an APEN, at this facility. 5. 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 LOAD-1 010 Enclosed Combustor VOC, HAP PROCESS LIMITATIONS AND RECORDS 6. This source shall be limited to the following maximum processing rates as listed below. Monthly records of the actual processing rate 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 AIRS Process Parameter Annual Limit Point 010 Total condensate throughput 1,220,440 bbl/yr Condensate throughput while controls not operational 230,000 bbl/yr The owner or operator shall calculate monthly process rates based on the calendar month. 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. 7. The operator shall monitor and record the monthly volumes of condensate loaded during periods when the enclosed combustor is operating and when the enclosed combustor is not ,, CtPHE COLORADO CO ' Air Pollution Control Division . cw=,r:-.,< ..41)1_F.,e<:,,,,t:,.<;.0;,rr Page 2 of 7 atii g. is ata` all a used ' calculate actual emissions to demonstrate compliance l'4"-"With tam li alne his permit. 8. Condensate loading to truck tanks shall be conducted by submerged fill. (Reference: Regulation 3, Part B, III.E) STATE AND FEDERAL REGULATORY REQUIREMENTS 9. Visible emissions shall not exceed twenty percent (20%) opacity 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.1.c shall have no visible emissions. (Reference: Regulation No. 1, Section II.A.1. Ft 4.) 10. This source is located in an ozone non-attainment 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) 11. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 12. The owner or operator shall follow loading procedures that minimize the leakage of VOCs to the atmosphere including, but not limited to (Reference: Regulation 3, Part B, III.D.2): 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 at the facility (including thief hatches) shalt 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 onsite loading equipment during loading operations to monitor compliance with above conditions. The inspections shall occur at least monthly. Each inspection shall be documented in a log available to the Division on request. 13. 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. OPERATING & MAINTENANCE REQUIREMENTS 14. 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.) COMPLIANCE TESTING AND SAMPLING 15. This source is not required to comply with any testing and sampling requirements. ADDITIONAL REQUIREMENTS 16. 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: COPHE COLORADO O -.yam, Au Pollution Control Diva ion Page 3 of 7 iI o ny rite • p lutant: .r .• -s less 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 (NOr) in ozone nonattainment areas emitting less than 100 tons of VOC or NOX 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. 17. Federal regulatory program requirements (i.e. PSD, NANSR)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 18. 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 Number 3, Part B, Section II.B. upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 19. 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 Number 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. 20. 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. * CDPHE COLORADO CO '1.` Air Pollution Control Division De•„,:,::.,t•.::.r ,11,I. {e r.I_,,.xonr. Page 4 of 7 21. �ss •e is y s ted therwi V, the general and specific conditions contained in this .ermi ve ed by APCD to be necessary to assure compliance with the provisions of Section 25-7-114.5(7)(a), C.R.S. 22. 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. 23. 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. 24. Violation of the terms of a permit or of the provisions of the 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: Christopher Kester Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to PDC Energy, Inc. A COPHE COLORADO , CO Air Pollution Control Division Page 5 of 7 II A No - r ' . - th- - this - it issuance: 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. (Regulation Number 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 alt of the criteria set forth in Part II.E.1 of the Common Provisions Regulation. See: https://www.colorado.gov/pacific/cdphe/aqcc-regs 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. AIRS Uncontrolled Controlled Point Emission Rate Emission Rate Pollutant CAS# (lb/yr) (lb/yr) n-Hexane 110543 5442 4468 Benzene 71432 651 534 010 Toluene 108883 862 708 Xylenes 1330207 310 254 Note: All non-criteria reportable pollutants in the table above with uncontrolled emission rates above 250 pounds per year(lb/yr) are reportable and may result in annual emission fees based on the most recent Air Pollution Emission Notice. 5) The emission levels contained in this permit are based on the following emission factors: Point 010: Uncontrolled Pollutant CAS# Emission Factors Source lb/bbl VOC 0.1385 AP-42 n-Hexane 110543 0.0045 Benzene 71432 0.0005 Promax Toluene 108883 0.0007 Xylenes 1330207 0.0003 Note: 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) = 4.4083 psia CDPHE COLORADO CO , Air Pollution Control Division s ,_,.,t•,::I ,,be ',,y,.- Page 6 of 7 o of ula eight) 51.669 lb/lb-mol T (temperature of liquid loaded) = 516.461 °R The uncontrolled non-criteria reportable air pollutant (NCRP) emission factors were calculated by multiplying the mass fraction of each NCRP in the vapors by the VOC emission factor. The mass fractions were conservatively developed by taking the mass fraction of NCRP from the tank flash emissions Promax stream and dividing by the mass fraction of VOC in the same stream. Alternatively, when calculating VOC emissions, the mass fraction was assumed to be 1.0. Controlled emissions are based on a flare efficiency of 95% and controlling 230,000 bbl/yr of the condensate loaded. 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: VOC NANSR Synthetic Minor Source of: VOC 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 4 CDPHE COLORADO `o Air Pollution Control Division Page 7 of 7 Colorado Air Permitting Project Project Details Review Engineer: Christopher Kester Package#: 335588 Received Date: 8/4/2015 Revised application received 12/28/2015 Review Start Date: 2/1/2016 Section 01-Facility Information Company Name: PDC Energy,Inc. County AIRS ID: 123 Plant AIRS ID: 9.00E+40 Facility Name: Chesnut 27 Pad Physical Address/Location: SWNW SEC 27 TSN R64W Type of Facility: Oil Stabilization(Exploration&Production) What industry segment? Oil&Natural Gas Production&Processing Is this facility located in a NAAQS non-attainment area? Yes If yes,for what pollutant? ❑Carbon Monoxide(CO) O Particulate Matter(PM) O Ozone(NOx&VOC) Section 02-Emissions Units In Permit Application Emissions Self Cert AIRs Point# Emissions Source Type Permit# Issuance# Action Engineering Remarks Control? Required? 001 Natural Gas RICE Yes GP02 1 No Permit Initial Issuance 002 Natural Gas RICE Yes, GP02 1 No Permit Initial Issuance 003 Natural Gas RICE Yes GP02 1 No - Permit Initial Issuance 004 Natural Gas RICE Yes GP02 1 No Permit Initial Issuance 005 Natural Gas RICE Yes GP02 1 No Permit Initial Issuance 006 Natural Gas RICE Yes GP02 1 No Permit Initial Issuance 007 Natural Gas RICE No 16WE0117.XP 1 No APEN Required/Permit Exempt XP Pilot 008 Natural Gas RICE No 16WE0118.XP 1 No APEN Required/Permit Exempt XP Pilot 009 Condensate Storage Tank Yes 16WE0119 1 Yes Permit Initial Issuance PC Required 010 Hydrocarbon Liquid Loading Yes 16WE0120 1 Yes Permit Initial Issuance PC Required 011 Produced Water Storage Tank Yes 16WE0150.XA 1 Yes APEN Exempt Section 03-Description of Project This project will permit a new synthetic minor E&P facility. Section 04-Public Comment Requirments Is Public Comment Required? Yes If yes,why?' Requesting Synthetic Minor Permit Section 05-Ambient Air Impact Analysis Requirements Was a quantitative modeling analysis required?' No If yes,for what pollutants? If yes,attach a copy of Technical Services Unit modeling results summary. Section 06-Facility-Wide Stationary Source Classification Is this stationary source a true minor? No Is this stationary source a synthetic minor? Yes If yes,explain what programs and which pollutants here: Title V Operating Permits(OP):VOC&HAPs Non-Attainment New Source Review(NANSR):VOC Is this stationary source a major source? Nara If yes,explain what programs and which pollutants here: Condensate Storage Tank(s)Emissions Inventory Issuance Date: December 30,2015 Section 01-Adminstrative Information Facility AIRS ID: 123 9E40 009 County Plant Point section 02-Eauioment Descriotion Details Detailed Emissions Unit Thdty two(32)500 bbl fixed roof condensate storagetanks Description: Emission Control Device Bank of twelve(1A enclosed combustors Description: Requested Overall VOC&HAP Control 95 Efficiency%: section 03-Processing Rate Information for Emissions Estimates Primary Emissions-Storage Tank(s) Actual Condensate Throughput= 1,220,440 Barrels(bbl)per year Actual Condensate Throughput While Emissions Controls Operating= 1,220,440 Requested Permit Limit Throughput= 1,220,440 Barrels(bbl)per year Potential to Emit(PTE)Condensate Throughput= 1,220,440.Barrels(bbl)per year Secondary Emissions-Combustion Device(s) Heat content of waste gas= 2000 Btu/scf Volume of waste gas emitted per BBL of liquids produced= 7.228 scf/bbl Actual heat content of waste gas routed to combustion device= 17,643 MMBTU per year Request heat content of waste gas routed to combustion device= 17,643 MMBTU per year Potential to Emit(PTE)heat content of waste gas routed to combustion device= 17,643 MMBTU per year Section 04-Emissions Factors&Methodologies Will this storage tank emit flash emissions? ,`� Condensate Storage Tanks Control Device Uncontrolled E.F. Controlled E.F. Uncontrolled E.F. Uncontrolled Pollutant (lbs/bbi (lbs/bbl (Ibs/MMBtu E.F.(Ibs/bbl Emissions Factor Source Citation Condensate Condensate waste heat Condensate Throughput) Throughput) combusted) Throughput) 177 PM2.5 XXX\ 4:44\"" • 4 ` 0130000 0.138000 • • 0.4922 ti _ ry *,s I • XXXXXN 0176000 0.276000 , •• 0.001283 0.000063 � �� 0.001714 0.000086 XXV1 041:4ka:VIII: 0.000064 0.000003 gillIkNikillYINVIIIXXViiik7r IMMIZEIMMINI 0.000696 0.000035 XXX N1 0.010g55 0.000528 , 0.000632 0.000032 4iti -r > ' s Section 05-Emissions Inventory Potential to Emit Requested Permit Limits Actual Emissions Criteria Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled (tons/year) (tons/year) (tons/year) (tons/year) (tons/year) PM10 0.0 0.0 0.0 0.0 0.0 PM2.5 0.0 0.0 0.0 0.0 0.0 Nth' 1.2 1.2 1.2 1.2 1.2 VOC 300.4 300.4 15.0 300.4 15.0 CO 2.4 2.4 2.4 2.4 2.4_ Potential to Emit Requested Permit Limits Actual Emissions Hazardous Air Pollutants Uncontrolled Uncontrolled Controlled Uncontrolled Controlled (tons/year) (tons/year) (tons/year) (tons/year) (tons/year) Benzene 0.765 0.765 0.038 0.765 0.038 Toluene 1.049 1.049 0.052 1.049 0.052 Ethylbenzene 0.039 0.039 0.002 0.039 0.002 Xylene 0.425 0.425 0.021 0.425 0.021 n-Hexane 6.441 6.441 0.322 6.441 0.322 224 TMP 0.386 0.386 0.019 0.386 0.019 Section 06-Regulatory Summary Analysis Regulation 7,Section XII.C,D,E,F Storage tank is subject to Regulation 7,Section XII,as provided bel Regulation 7,Section XII.G,C Storage Tank is not subject to Regulation 7,Section XII.G Regulation 7,Section XVII.B,C.1,C.3 Storage tank is subject to Regulation 7,Section XVII,B,Cl&C.3,a Regulation 7,Section XVII.C.2 Storage tank is subject to Regulation 7,Section XVII.C.2,as provide Regulation 6,Part A,NSPS Subpart Kb Storage Tank is not subject to NSPS Kb Regulation 6,Part A,NSPS Subpart 0000 Storage Tank is not subject to NSPS 0000 Regulation 8,Part E,MACT Subpart HH Storage Tank is not subject to MAR HH-lithe tank is subject to cc (See regulatory applicability worksheet for detailed analysis) 2 of 7 K:\PA\2016\16W EO150.XA.xlsm Condensate Storage Tank(s) Emissions Inventory Issuance Date- December 30,2015 Section 07-Initial and Periodic Sampling and Testing Requirements Does the company use the state default emissions factors to estimate emissions? DO If yes,are the uncontrolled actual or requested emissions estimated to be greater than or equal to 80 tons VOC per year? If yes,the permit will contain an"Initial Compliance"testing requirement to develop a site specific emissions factor based on guidelines in PS Memo 05-01. Does the company use a site specific emisions factor to estimate emissions? Y64 i If yes and if there are flash emissions,are the emissions factors based on a pressurized liquid sample drawn at the facility being permitted?This sample should be considered representative which generally means site-specific and // ce �.. collected within one year of the application received date.However,if the facility has not been modified(e.g., new wells brought on-line),then it may be appropriate to use an older site-specific sample. If no,the permit will contain an"Initial Compliance"testing requirement to develop a site specific emissions factor based on guidelines in PS Memo 05-01. Does the company request a control device efficiency greater than 95%for a flare or combustion device? If yes,the permit will contain and intial compliance test condition to demonstrate the destruction efficiency of the combustion device based on inlet and outlet concentration sampling Section 08-Technical Analysis Notes Operator pulled pressurized liquid sample directly upstream of the storage tanks on 5/28/2015 from the.Chesnut 270-H2 Pad.This sample was input into a Promax simulation directly upstream of storage tanks.Stream pressure drops from 35 psig to 0 psig in the tanks.Thi s.will result in flash emissions in the tanks.Operator is using the W&B°stend°in Promax to calculated working and breathing losses from the tanks The combustion emissions were calculated with the following conversion: Flash.Gas(MMBtu/yr)=300.40 TPY x 2000 lb/ton x:(1/3816/Ib-mol)x(379.41 scf/lh mol)x(1/0.68)0 2000 Btu/scf x.(1 MMBtu/10^6 Btu)=17,643.15 MMBtu/yr: The molecular weight of 38 Ib/lbmol.VOC content of 68%,and heat content of the gas 2000 Btu/sd are field wide averages that result in similar emissions estimates as using the values in.the Promax simulation.Operator wished to use these averages to maintain consistency with other applications. Section 09-Inventory SCC Coding and Emissions Factors Uncontrolled Emissions AIRS Point it Process a SCC Code Pollutant Factor Control% Units 009 01 $-04-003-1'f3 Fixed R34f Tattle,tst7k5d � " �"„ ghing{asses ' '„ PM10 0.00 0 lb/1,000 gallons condensate throughput PM2.5 0.00 0 lb/1,000 gallons condensate throughput 00x 0.05 0 lb/1,000 gallons condensate throughput VOC 11.7 95 lb/1,000 gallons condensate throughput CO 0.09 0 lb/1,000 gallons condensate throughput Benzene 0.03 95 lb/1,000 gallons condensate throughput Toluene 0.04 95 lb/1,000 gallons condensate throughput Ethylbenzene 0.00 95 lb/1,000 gallons condensate throughput Xylene 0.02 95 lb/1,000 gallons condensate throughput n-Hexane 0.25 95 lb/1,000 gallons condensate throughput 224 TMP 0.02 95 lb/1,000 gallons condensate throughput 3 of 7 K.\PA\2016\16WE0150.XA.xlsm Condensate Tank Regulatory Analysis Worksheet Colorado Regulation 3 Parts A and B ATTAINMENT 1. Are uncontrolled actual emissions from any criteria pollutants from this individual source greater than 2 TPY(Regulation 3,Part A,Section Ms.)?1.a)? 'NA 2. Is the construction date(service date)prior to December 30,2002(CDPHE Memo 05-01)? 3, Are total facility uncontrolled VOC emissions greater than 5 TPY,Not greater than 10 TPY or CO emissions greater than 10 TPV(Regulation 3,Part B,Section 11.0.3)7 (Not enough information NON-ATTAINMENT 1. Are uncontrolled emissions from any criteria pollutants from this individual source greater than 1 TPY(Regulation 3,Part A,Section 11 0.1.')7 YES "Source Req 2. Is the construction date(service date)prior to December 30,2002(CDPHE Memo 05-01)? No-. Go to next 3. Are total facility uncontrolled VOC em ssions from the greater than 2 TPY,NOx greater than 5 TPY or CO emissions greater than 5 TPY(Regulation 3,Part a Section 11.0.2)? Yes• _...;Source Req (Source requires a permit Colorado Regulation 7,Section XII 1. Is this storage tank located in the 8-hr ozone control area or any ozone non-attainment area or attainment/maintenance area? VEd Go to the n 2. Is this storage tank located at an oil and gas exploration and production operation`,natural gas compressor station or natural gas dr p station? Ve9,4,, Go to the ry 3. Is this storage tank located upstream of a natural gas processing plant? Yeg Source is su `Storage tank is subject to Regulation 7,Section XII,as provided below Section XII.C.1—General Requirements for Air Pollution Control Equipment—Prevention of Leakage Section XII.C2—Emission Estimation Procedures Section XII.D—Emissions Control Requirements Section XII.E—Monitoring Section XII.F—Recordkeeping and Reporting Colorado Regulation 7,Section X11.6 1. Is this storage tank located in the 8-hr ozone control area or any ozone non-attainment area or attainment/maintenance area? Yes Go to the n 2. Is this storage tank located at a natural gas processing plant? Mo Storage Tar 3. Does this storage tank exhibit"Flash"(e.g.storing non-stabilized liquids)emissions and have uncontrolled actual emissions greater than or equal to 2 tons per year VOC? 'Storage Tank is not subject to Regulation 7,Section XII.5 Section 311.6.2-Emissions Control Requirements Section XII.C.1—General Requirements for Air Pollution Control Equipment—Prevention of Leakage Section XII.C.2—Emission Estimation Procedures Colorado Regulation 7,Section XVII 1. Is this condensate storage tank'located at an oil and gas exploration and production operation,well production facility',natural gas compressor station'or natural gas processing plant? Yee-- No to the n. 2. Is this condensate storage tank a fixed roof storage tank? - two - Go to the n 3, Are uncontrolled actual emissions of this storage tank equal to or greater than 6 tons per year VOC? •Yes Source is su 'storage tank is subject to Regulation 7,section XViI,8,C1 X C3,as provided below Section XVII.B—General Provisions for Air Pollution Control Equipment and Prevention of Emissions Section XVII.C.1-Emissions Control and Monitoring Provisions Section XVIl.C.3-Recordkeep ng Requirements 4. Does the condensate storage tank contain only stabilized'liquids?K no,the following additional provisions apply. rT10 -:'Source is su 'Storage tank is subject to Regulation 7,Section XVII.C.2,as provided below Section XVII.C.2-Capture and Monitoring for Storage Tanks fitted with Air Pollution Control Equipment 77 5. Is this tank located at a transmission/storage facility? A{T 'Source is ix 40 CFR,Part 60,Subpart Kb,Standards of Performance for Volatile Organic Liquid Storage Vessels l 1. Is the individual storage vessel capacity greater than or equal to 75 cubic meters(to')["472 BBLs]7 p'P60 - Go to the n, 2. Does the storage vessel meet the follow rag exemption in 60 111b(d)(4)? Y8s Storage Tar a.Does the vessel have a design capacity less than or equal to 1,589.874 ms['"10,000 BBL]used for petroleum'or condensate stored,processed,or treated prior to custody transfer'as defined in 60.1116? 3. Was this condensate storage tank constructed,reconstructed,or orodiC d(see definitions 40 CFR,60.2)after July 23,1984? 4. Does the tank meet the definition of"storage vessel''in 60.111b? 5. Does the storage vessel store a"volatile organic liquid(VOLT'as defined in 60.111b7 6. Does the storage vessel meet any one of the following additional exemptions: a.Is the storage vessel a pressure vessel designed to operate in excess of 204.9 kPa["29.7 psi]and without emissions to the atmosphere(60.110b(d)(2))?;or b.The design capacity is greater than or equal to 151 m'[`950 BBL)and stores a liquid with a maximum true vapor pressures less than 3.5 kPa(60.1106(6))?;or o,The design capacity is greater than or equal to 75 M5["472 BBL]but less than 151 m'["950 BBL]and stores a liquid with a maximum true vapor pressures less than 15.0 kPa(60.110b(b)]? Storage Tank is not subject to NSPS Kb Subpart A,General Provisions §60.112b-Emissions Control Standards for VOC §60.113b-Testing and Procedures §60.115b-Reporting and Recordkeeping Requirements §60.116b-Monitoring of Operations 40 CFR,Part 60,Subpart 0000,Standards of Performance for Crude Oil and Natural Gas Production.Transmission and Distribution 1. Was this condensate storage vessel constructed,reconstructed,or modified(see definitions 40 CFR,60.2)after August 23,2011? Yes Go to the n 2. Does this condensate storage vessel meet the definition of"storage vessel"per 60.5430? Yes. Go to the n • 3. Is this condensate storage vessel located at a facility in the onshore oil and natural gas production segment,natural gas processing segment or natural gas transmission and storage segment of the industry? Yes Go to the n 4. Are potential VOC emissions'from the individual storage vessel greater than or equal to 6 tons per year? No Storage Tar 5. Is the storage vessel subject to and controlled in accordance with requirements for storage vessels in 40 CFR Part 60 Subpart Kb or 40 CFR Part 63 Subpart HH? 'Storage Tank is not subject to NSPS 0000 Subpart A,General Provisions per§60.5425 Table 3 §60.5395-Emissions Control Standards for VOC §60.5413-Testing and Procedures §60.5395(g)-Notification,Reporting and Recordkeeping Requirements §60.5416(c)-Cover and Closed Vent System Monitoring Requirements §60.5417-Control Device Monitoring Requirements [Note:If a storage vessel is previously determined to be subject to NSPS 0000 due to emissions above 6 tons per year VOC on the applicability determination date,it should remain subject to NSPS 0000 per 60.5365(el[2) even if potential VOC emissions drop below 6 tons per year] 40 CFR,Part 63,Subpart MAR HH,Oil and Gas Production Facilities 1. Is the tank located at a facility that is major for HAPs? No (Storage Tar 2. Is the storage tank located at an oil and natural gas production facility that meets either of the following criteria: a.A facility that processes,upgrades or stores hydrocarbon liquids'(63.760(a)(2));OR b.A facility that processes,upgrades or stores natural gas prior to the point at which natural gas enters the natural gas transmission and storage source category or is delivered to a final end user'(63.760(a)(3))? 3. Does the tank meet the definition of"storage vessel"'in 63.761? 4. Does the tank meet the definition of"storage vessel with the potential for flash emissions"'per 63.761? 5. Is the tank subject to control requirements under 40 CFR Part 60,Subpart Kb or Subpart 00007 'Storage Tank is not subject to MACT OR-If the tank is subject to control provisions of NSPS 0000,the source must submit periodic reports per 63.?75(e) Subpart A,General provisions per§63.764(a)Table 2 §63.766-Emissions Control Standards §63.773-Monitoring §63.114 Recordkeeping §63.715-Reporting Disclaimer This document assists operators with determining applicability of certain requirements of the Clean Au-Act,its implementing regulations,and Air Quality Control Commission regulations.This document is not a rule or regulation,and the analysis it contains may not apply to a particular situation based upon the individual facts and circumstances.This document does not change or substitute for any law, regulation,or any other legally binding requirement and is not legally enforceable.In the event of any conflict between the language of this document and the language of the Clean Air Act„its implementing regulations,and Air Quality Control Commission regulations,the language of the statute or regulation will control. The use of non-mandatory language such as"recommend,"'may," 'Should,"and'can,'is intended to describe APCD interpretations and recommendations.Mandatory terminology such as'must"and'required"are intended to describe controlling requirements under the terms of the Clean Air Act and Air Quality Control Commission regulations,but this document does not establish legally binding requirements in and of itself 010 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 4.4083 psia Promax M Molecular Weight of Var 51.669 lb/lb-mole Promax T Liquid Temperature 516.461 deg. R AP-42 L 3.2971 lb/10^3 gal 0.1385 lb/bbl Annual requested Throughput 1220440 BBL/yr 51258480 gal/yr Annual requested VOC emissions 169005 lb/yr 84.50 tpy Control: Flare Efficiency: 17.90% This value is based on controls being operational for only 230,000 bbl/yr of the total throughput.This control acheives 95%destruction while NCRPs operational. Component Mass Fraction Benzene 0.0039 n-hexane 0.0322 Toluene 0.0051 Xylenes 0.0018 Source: These mass fractions were conservatively developed by taking the mass fraction of NCRP from the "Cond Flash Emissions"stream from Promax and dividing by the mass fraction of VOC in the same stream.Alternatively, when estimating VOC emissions,the mass fraction was assumed to be 1.0 Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 0.1385 lb/bbl 84.5 tpy 69.37 tpy AP-42 Benzene 0.0005 lb/bbl 650.8 lb/yr 534.3 lb/yr AP-42 n-Hexane 0.0045 lb/bbl 5442 lb/yr 4468 lb/yr AP-42 Toluene 0.0007 lb/bbl 862 lb/yr 708 lb/yr AP-42 Xylenes 0.0003 lb/bbl 310 lb/yr 254 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.I 011 Twelve(12)400 bbl produced water storage tanks. Emissions from the tanks are routed to an enclosed flare Emissions Calculations Requsted Throughput 333350 bbl Control Flare Efficiency 95.00% Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 0.0025 lb/bbl 0.4166875 tpy 0.020834 tpy Benzene 0.0003226 lb/bbl 107.53871 lb/yr 5.376936 lb/yr Flash liberation(GWR)method Toluene 0.0003469 lb/bbl 115.639115 lb/yr 5.781956 lb/yr used,0.10 scf/bbl,speciation EB 0.0000119 lb/bbl 3.966865 lb/yr 0.198343 lb/yr of liberated gas performed, Xylene 0.0001037 lb/bbl 34.568395 lb/yr 1.72842 lb/yr 22.107%VOC by weight. 224 TMP 0.0000025 lb/bbl 0.833375 lb/yr 0.041669 lb/yr n-Hexane 0.0000412 lb/bbl 13.73402 lb/yr 0.686701 lb/yr Source is APEN exempt< 1 tpy VOC 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 I.A-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. a tea -44 U ^o y o 0 o a� c _ o O -4-, 3 T4 4 c ° o00 f L L . c I.. a = r d 7 o u ° w >, o .o c an '" Da ❑ = N ❑\ ❑❑ C ,b a) U L L N N N I" O • „IT-- cd W •j w c�" C C C\ O, O", z .7-- •-.... 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Source Name: Chesnut 27 Pad Emissions Source AIRS ID2: TBD/ / =3 ccq Wells Services by this Storage Tank or Tank Battery (E&P Sites Only) API Number Name of Well Newly Reported Well 05- 123-40070 Chesnut 27K-203 05-123-39980 Chesnut 27K-323 05-123-40079 Chesnut 27K-341 05- 123-40071 Chesnut 27K-343 05- 123-40078 Chesnut 27K-401 05-123-39981 Chesnut 27K-403 05- 123-40077 Chesnut 27K-421 05- 123-40144 Chesnut 27O-201 05- 123-39978 Chesnut 27O-243 05-123-39979 Chesnut 27O-303 05- 123-40075 Chesnut 27O-341 - . - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ Footnotes: 1 Attach this addendum to associated APEN faun when needed to report additional wells. 2 If this is a newly report source that has not been assigned an AIRS ID by the APCD, enter N/A Form APCD-212 TK-1 Appendix.docx ° •) 04 x o Z T 3 3 3 3 3 �. ° E Z o no v, O O., s. W -0 0' C 0) ° •-, . Z. . . N s a E z a) d MMM • C 0 C .C ❑ C C p W L N N N O a) C, ❑ R a a a a a > b sz ° E 0. 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