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Home My WebLink About20153847.tiff A CRPHE ' COLORADO Co ' Department of Public Health£r Environment Dedicated to protecting and improving the health and environment of the people of Colorado Weld County - Clerk to the Board 11500 St PO Box 758 Greeley, CO 80632 RECEIVED November 30, 2015 DEC 1 0 2015 WELD COUNTY COMMISSIONERS Dear Sir or Madam: On December 2, 2015, the Air Pollution Control Division will begin a 30-day public notice period for PDC Energy, Inc. - Chesnut 28 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, 1� J Clara Gonzales Public Notice Coordinator Stationary Sources Program Air Pollution Control Division Enclosure A-q-15 eL r/I / , f' 2015-3847 4300 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 *: CDPHE Air Pollution Control Division Notice of a Proposed Project or Activity Warranting Public Co Irs" Comment Website Title: PDC Energy, Inc. - Chesnut 28 Pad - Weld County Notice Period Begins: December 2, 2015 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 28 Pad Well Production Facility NENE SEC 28 T5N R64W Weld County The proposed project or activity is as follows: Applicant proposes to permit a well production facility 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 15WE1149 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 GO LORAPO 1 � d STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Afv AIR POLLUTION CONTROL DIVISION TELEPHONE: (303)692-3150 '1876 CONSTRUCTION PERMIT PERMIT NO: 15WE1149 E1 1 49 Issuance 1 DATE ISSUED: ISSUED TO: PDC Energy, Inc. THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas facility, known as the Chesnut 28 Pad, located in the NENE of Section 28, Township 5N, Range 64W, in Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID Thirty(30) above ground 400 bbl atmospheric condensate storage TK-1 004 tanks. Emissions from the tanks are routed to an enclosed flare that achieves a minimum destruction 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 of the latter of commencement of operation or issuance of this permit, l submitting a Notice of Startup form to the Division. The Notice of Startup form may be downloaded online at https://www.colorado.gov/pacific/cdphe/other-air-permitting-notices. 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) 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, I II.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 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 AIRS ID: 123/9E04 Page 1 of 9 Condensate Tank SM/M Version 2012-1 olor-A Depa en -f ' •li 'Health and Environment A •it Pollution Control Division application as it- p ••S,, .i) • -s co tion fora 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. 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 6. 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 TK-1 004 --- 7.3 1.3 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. During the first twelve (12) months of operation, compliance with both the monthly and annual emission limitations is required. After the first twelve (12) months of operation, compliance with only the annual limitation is required. 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. 7. 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 Control Device Pollutants Equipment ID Point Controlled TK-1 004 Enclosed Flare VOC PROCESS LIMITATIONS AND RECORDS AIRS ID: 123/9E04 Page 2 of 9 olor y'.: Depa„ en'.f ' •li Health and Environment it Pollution Control Division a . 8. This source s- '-,, - it-.• - t w • -wi , P..7.-.. m pr,.. W ing 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 Process Parameter Annual Limit Equipment ID Point TK-1 004 Condensate throughput 699,950 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. STATE AND FEDERAL REGULATORY REQUIREMENTS 9. 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) 10. 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.2.b shall have no visible emissions. (Reference: Regulation No. 1, Section II.A.1. & 4.) 11. This source is subject to the odor requirements of Regulation No.2. (State only enforceable) 12. The flare covered by this permit is 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. 13. 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. 14. The flare covered by this permit is subject to Regulation No. 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. The operator shall comply with all applicable requirements of Section XVII. This flare must be equipped with an operational auto-igniter upon installation of the combustion device. AIRS ID: 123/9E04 Page 3 of 9 I olor- Depa en .f • ` •Ii Health' and Environment A ,it Pollution Control Division 15. The storage tanks covered by this permit are subject to the emission control requirements in Regulation No. 7, Section XVII.C.1.b. The owner/operator must 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. The source shall follow the inspection requirements of Regulation No. 7, Section XVI I.C.1.d. and maintain records of the inspections for a period of two years, made available to the Division upon request. This control must be achieved within 90 days of the date that the storage tank commences operation. 16. The storage tanks covered by this permit are subject to the venting and Storage Tank Emission Management System ("STEM") requirements of Regulation No. 7, Section XVII.C.2. This storage tank shall be operated 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. The owner/operator must develop, certify, and implement a documented STEM plan to identify,evaluate,and employ appropriate control technologies, monitoring practices, operational practices, and/or other strategies designed to meet these requirements.These storage tanks must comply and implement a STEM Plan within 90 days of the storage tank commencing operation. The owner/operator shall maintain records in accordance with Regulation No. 7, Section XVII.C.3. and make them available to the Division upon request. The owner or operator shall maintain records of STEM, including the plan,any updates,and the certification,for the life of the storage tank. The owner/operator will maintain records of all required inspections and monitoring for a period of two years. OPERATING & MAINTENANCE REQUIREMENTS 17. Upon startup of this point,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 Initial Testing Requirements There are no initial testing requirements under this section. Periodic Testing Requirements There are no periodic testing requirements under this section. ADDITIONAL REQUIREMENTS 18. 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: AIRS ID: 123/9E04 Page 4 of 9 olor. Depa en :f '=' .li Health and Environment A it Pollution Control Division a Fora . . • 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(NOX) 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. 19. 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 Parts C and D). GENERAL TERMS AND CONDITIONS 20. 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. 21. 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. 22. 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 AIRS ID: 123/9E04 Page 5 of 9 i olor.ADepa en .f - •Ii Health and Environment it Pollution Control Division construction, i-- I• a- -$e -f th- 'n acce• ce 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. 23. 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. 24. 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. 25. 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. 26. 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: cilAb;:y___________ Christopher Kester Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to PDC Energy, Inc. AIRS ID: 123/9E04 Page 6 of 9 olor p Depa ens •`f .li a Health and Environment it Pollution Control Division Notes to Permit Holder e o"` ".e an 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: 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. Uncontrolled Emission Are the Controlled AIRS Rate emissions Emission Point Pollutant CAS# (lb/yr) reportable? Rate(Ib/yr) Benzene 71432 729 Yes 36 Toluene 108883 1023 Yes 51 Ethylbenzene 100414 33 No 2 004 Xylene 1330207 332 Yes 17 n-Hexane 110543 6036 Yes 302 224 TMP 540841 322 Yes 16 AIRS ID: 123/9E04 Page 7 of 9 • olor- ° Depa en .f ell Health and Environment A it Pollution Control Division 5) The emission level - • • i •= • - b-, •• follow.. ission factors: Point 001: Emission Factors Uncontrolled CAS# Pollutant lb/BBL Source Condensate Throughput NOx 0.00173 TCEQ CO 0.00346 VOC 0.4123 110543 n-Hexane 0.001042 71432 Benzene 0.001462 108883 Toluene 0.0000469 Promax Model 100414 Ethylbenzene 0.0004749 1330207 Xylene 0.008624 540840 224 TMP 0.0004598 Note: The controlled emissions for point 004 are based on the flare control efficiency of 95%. The emission factors for NOx and CO are derived from TCEQ flaring emission factors (NOx = 0.138 lb/MMBtu; CO =0.2755 lb/MMBtu) 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/Major Source of: VOC PSD or NANSR Synthetic Minor/Major 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.v.ov/ Part 60: Standards of Performance for New Stationary Sources NSPS 60.1-End Subpart A—SubpartKKKK 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 AIRS ID: 123/9E04 Page 8 of 9 &...a s: , r moo olor Depa erne f li Health and Environment it Pollution Control Division MACT 63.14 5 S , 4f2Q YrOOL 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.colorado.gov/pacific/cdphe/air-permit-self-certification AIRS ID: 12319E04 Page 9 of 9 Division Information Engineer: Christopher Kester Control Engineer: Stefanie Rucker Review Date: 11/09/2015 Application Date: 07/24/2015 Facility Identifiers Permit No. 15WE1149 Potentially located in ozone nonattainment area AIRs County# 123 lWeld Facility# 9E04 Facility Type: exploration and production facility ❑Located in the 8-hour non-attainment area? O True Minor ® Synthetic Minor for: 1 VOC r' NOx r co Administrative Information Company Name: PDC Energy, Inc. Source Name: Chesnut 28 Pad Source Location: NENE SEC 28 T5N R64W SIC: 1311 Address 1: PDC Energy, Inc. Mailing Address 2: 1775 Sherman Street, Suite 3000 Address ty,State Zip: Denver, CO Name: Elizabeth Duncan Person To Phone: 303-860-5800 Contact Fax: Email: Elizabeth.Duncan@pdce.com 'Requested Action Self Certification Required? Yes Issuance Number: 1 Source Description: Oil and gas exploration and production facility known as the Chesnut 28 Pad, located in the NENE SEC 28 T5N R64W,Weld County, Colorado. Point Name Type Control Action Newly 004 TK-1 Condensate Tanks Flare reported source 004 Thirty(30)above ground 400 bbl atmospheric condensate storage tanks. Emissions from the tanks are routed to an enclosed flare that achieves a minimum destruction efficiency of 95% IRequsted Throughput I 699950Ibbl Combustion Emissions Control Flare I Flash W&B Efficiency 95.00%l 0.00859286 MMscf/day 0.00248302 MMscf/day 1958.01 Btu/scf 2927.27 Btu/scf 6141.09062 MMBtu/yr 2652.991534 MMBtu/yr Total 8794.082154 MMBtu/yr Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source V0C 0.4123 lb/bbl 144.3 tpy 7.21 tpy E&P TANK Benzene 0.001042 lb/bbl 729.3479 lb/yr 36.467395 lb/yr E&P TANK Toluene 0.001462 lb/bbl 1023.3269 lb/yr 51.166345 lb/yr E&P TANK Ethylbenzene 0.0000469 lb/bbl 32.827655 lb/yr 1.64138275 lb/yr E&P TANK Xylenes 0.0004749 lb/bbl 332.406255 lb/yr 16.62031275 lb/yr E&P TANK n-Hexane 0.008624 lb/bbl 6036.3688 lb/yr 301.81844 lb/yr E&P TANK 224TMP 0.0004598 Ib/bbl 321.83701 lb/yr 16.0918505 lb/yr E&P TANK N0x 0.00173381 lb/bbl 0.60679167 tpy 0.606791669 tpy TCEQ CO 0.00346135 lb/bbl 1.21138482 tpy 1.211384817 tpy TCEQ 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. Re ulation 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. Re ulation 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. t' eau ii STATE OF COLORADO oF�co �w=_ �°\, ENVIRONMENT '�COLORADO DEPARTMENTOF PUBLIC HEALTH AND U AIR POLLUTION CONTROL DIVISION l*e gj TELEPHONE: (303) 692-3150 ,� , ,,.�,�/ *1876*, CONSTRUCTION PERMIT PERMIT NO: 1 5YY E1 1 50 Issuance 1 DATE ISSUED: ISSUED TO: PDC Energy, Inc. THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas facility, known as the Chesnut 28 Pad, located in the NENE of Section 28, Township 5N, Range 64W, in Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID LOAD-1 005 Truck loadout of condensate. Emissions from the loadout are not controlled. 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 of the latter of commencement of operation or issuance of this permit, by submitting a Notice of Startup form to the Division. The Notice of Startup form may be downloaded online at https://www.colorado.gov/pacific/cdphe/other-air- permitting-notices. 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) 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). 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 AIRS ID: 123/9E04 Page 1 of 8 Condensate Loadout TM Version 2012-1 I 6 Co A do a p e o Public Health and Environment Air Pollution Control Division 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 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 5. 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 Point Emission Type ID VOC LOAD-1 005 43.3 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. During the first twelve (12) months of operation, compliance with both the monthly and annual emission limitations is required. After the first twelve (12) months of operation, compliance with only the annual limitation is required. 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. 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. (Reference: Regulation 3, Part B, II.A.4) AIRS ID: 123/9E04 Page 2 of 8 Co do • p o Public Health and Environment Air Pollution Control Division Process/Consumption Limits Facility AIRS Equipment Point Process Parameter Annual Limit ID LOAD-1 005 Condensate Loading 699,950 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. Condensate loading to truck tanks shall be conducted by submerged fill. (Reference: Regulation 3, Part B, III.E) STATE AND FEDERAL REGULATORY REQUIREMENTS 8. 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. & 4.) 9. 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) 10. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 11. 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) 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 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. AIRS ID: 123/9E04 Page 3 of 8 IIICo A do • p e' o Public Health and Environment I Air Pollution Control Division 12. 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 13. This source is not required to follow a Division-approved operating and maintenance plan. COMPLIANCE TESTING AND SAMPLING 14. This source is not required to comply with any testing and sampling requirements. ADDITIONAL REQUIREMENTS 15. 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 (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. 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. 16. 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 AIRS ID: 123/9E04 Page 4 of 8 Co do Pp e., o Public Health and Environment Air Pollution Control Division 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 17. 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. 18. 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. 19. 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. 20. 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. 21. 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. 22. 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: 12319E04 Page 5 of 8 ICo A do Bp e. o Public Health and Environment I Air Pollution Control Division 23. 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: amiv:,,IL________ Christopher Kester Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to PDC Energy, Inc. AIRS ID: 123/9E04 Page 6 of 8 .I,0,,„,,,, • Co do p e o Public Health and Environment Air Pollution Control Division Notes to Permit Holder at the time of this permit 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 (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 or operator shall notify the Division Provision for Excess Emissions During Malfunctions. The owner 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. Uncontrolled Emission Are the AIRS Rate emissions Point Pollutant CAS# (lb/yr) reportable? n-Hexane 110543 1325 Yes 005 Benzene 71432 153 No 5) The emission levels contained in this permit are based on the following emission factors: Emission Factors - CAS Pollutant Uncontrolled Source lb/BBL loaded VOC 0.1238 Promax for inputs into AP- 71432 Benzene 0.0002 42 110543 n-Hexane 0.0019 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) = 3.92 psia M (vapor molecular weight) = 51.88 lb/lb-mol T (temperature of liquid loaded) = 516.23 °R AIRS ID: 123/9E04 Page 7 of 8 Co A do e p e o Public Health and Environment III Air Pollution Control Division The uncontrolled non-criteria reportable air pollutant (NCRP) emission factors were calculated by multiplying the ratio of the state default emission factor for the NCRP to the state default emission factor of VOC by the VOC emission factor. 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/Major Source of: VOC PSD or NANSR Synthetic Minor/Major 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 XXXXX( 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.colorado.gov/pacific/cdphe/air-permit-self-certification AIRS ID: 123/9E04 Page 8 of 8 Division Information Engineer: Christopher Kester Control Engineer: Stefanie Rucker Review Date: 11/09/2015 Application Date: 07/24/2015 Facility Identifiers Permit No. 15WE1150 Potentially located in ozone nonattainment area AIRs County# 123 (Weld Facility# 9E04 Facility Type: exploration and production facility ❑Located in the 8-hour non-attainment area? O True Minor Synthetic Minor for: 1✓ VOC )' NOx E CO Administrative Information Company Name: PDC Energy, Inc. Source Name: Chesnut 28 Pad Source Location: NENE SEC 28 T5N R64W SIC: 1311 Address 1: PDC Energy, Inc. Mailing Address 2: 1775 Sherman Street, Suite 3000 Address ty,State Zip: Denver,CO Name: Elizabeth Duncan Person To Phone: 303-860-5800 Contact Fax: Email: Elizabeth.DuncanPpdce.com 'Requested Action Self Certification Required? Yes Issuance Number: 1 Source Description: Oil and gas exploration and production facility known as the Chesnut 28 Pad, located in the NENE SEC 28 T5N R64W,Weld County, Colorado. Point Name Type Control Action Newly 005 LOAD-1 Loadout None reported source 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 3.92 psia M Molecular Weight of Var 51.88 lb/lb-mole Promax Simulation T Liquid Temperature 516.231 deg. R L 2.95 lb/10^3 gal 1.24E-01 lb/bbl Annual requested Throughput 699950 BBL/yr 29397900 gal/yr Annual requested VOC emissions 86582 lb/yr 43.29 tpy Control: None Efficiency: 0.00% NCRPs Component VOC/HAP Ratio Benzene 0.0018 n-hexane 0.0153 Source: from State Emission Factors Emissions Summary Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 0.1237 lb/bbl 43.29 tpy 43.29 tpy AP-42 Benzene 0.0002 lb/bbl 151.7 lb/yr 151.7 lb/yr AP-42 n-Hexane 0.0019 lb/bbl 1327 lb/yr 1327 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? 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Source Name: Chesnut 28 Pad Emissions Source AIRS ID2: TBD Wells Services by this Storage Tank or Tank Battery (E&P Sites Only) API Number Name of Well Newly Reported Well 05-123-39224 Chesnut 28R-403 05- 123-39225 Chesnut 28R-423 05-123-39041 Chesnut 28R-443 05-123-39226 Chesnut 28U-243 05-123-39227 Chesnut 28U-403 - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ - - ❑ Footnotes: 1 Attach this addendum to associated APEN form 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 _ ____ I 0 `� x A Z O -5 �n c Z T o 0 0 0 0�yy j L7 " _ N 1 �' " O @ c c c "c "c o .- °0 0 L CN C- C o E ° ° 3 Q Q Q Ca Q c dd �n 4 QJ ❑ C A U �. o E M M M ^ N C O O O :1 CC C ❑ ❑ ❑ ❑ ❑ .p > cG 0 el i .Mi 77, Mi C7 col U 3 ° W 0. O O O O s C � CD•0 c W w CS '_ L ' a . 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