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Home My WebLink About20153562.tiff * cDPHE ; COLORADO CO .r Department of Public "� Health&Environment Dedicated to protecting and improving the health and environment of the people of Colorado Weld County - Clerk to the Board 1150O St PO Box 758 RECEIVED Greeley, CO 80632 October 26, 2015 OCT 3 0 2015 WELD COUNTY COMMISSIONERS Dear Sir or Madam: On October 28, 2015, the Air Pollution Control Division will begin a 30-day public notice period for Bill Barrett Corporation - Ruh 6-62-11 NENW. 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 Ft Environment APCD-SS-B1 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 Attention: Clara Gonzales Regards, 7; Clara Gonzales Public Notice Coordinator Stationary Sources Program Air Pollution Control Division Enclosure 2015-3562 / p20/5- GG[Pt?", 16/30 4300 Cherry Creek Drive S., Denver, CO 80246-1530 P 303-692-2000 www.colorado.gov/cdphe John W. Hickenlooper, Governor Larry Wolk,MD,MSPH, Executive Director and Chief Medical Officer CDPHE Air Pollution Control Division Notice of a Proposed Project or Activity Warranting Public ihfro Comment Website Title: Bill Barrett Corporation - Ruh 6-62-11 NENW - Weld County Notice Period Begins: October 28, 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: Bill Barrett Corporation Facility: Ruh 6-62-11 NENW Oil and Gas Production Facility NENW Section 11, T6N, R62W Weld County The proposed project or activity is as follows: Applicant will operate one (1) heated gas/liquid separator and one (1) Vapor Recovery Tower (VRT) for enhanced recovery of produced condensate flash gas. Emissions result from this source when liquid is unable to be recompressed into the sales pipeline and bypass vapor recovery units. 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): • 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 15WE0960 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: Bradley Eades Colorado Department of Public Health and Environment 4300 Cherry Creek Drive South, APCD-SS-B1 Denver, Colorado 80246-1530 cdphe.commentsapcd@state.co.us COt°7 UC 1I 44 171 • STATE OF COLORADO 411 3y OLORAD D ARTMENT OF P =LIC HEALTH AND ENVIRONMENT /w AIR POLLUTION CONTROL DIVISION lye . TELEPHONE: (303)692-3150 t* 1*1 CONSTRUCTION PERMIT PERMIT NO: 15WE0960 Issuance 1 DATE ISSUED: ISSUED TO: Bill Barrett Corporation THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas exploration and production facility known as the Ruh 6-62-11 NENW, located in the NENW Sec 11, T6N, R62W, Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID Emissions from one (1) Heated separator and one (1) Vapor Recovery Tower (VRT) used to reduce flash emissions. Emissions VRU 003 are a function of condensate throughput while emissions bypass Bypass the Vapor Recovery Units (VRU). 38% VRU bypass is assumed for permit limits. Emissions are controlled by enclosed combustor(s). Each combustor has a minimum control efficiency of 95%. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION AND CONTROL ACT C.R.S. (25-7-101 et seq), TO THOSE GENERAL TERMS AND CONDITIONS INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: REQUIREMENTS TO SELF-CERTIFY FOR FINAL AUTHORIZATION 1. YOU MUST notify the Air Pollution Control Division (the Division) no later than fifteen days after commencement of operation or issuance of this permit, whichever comes later, by submitting a Notice of Startup form to the Division. The Notice of Startup form may be downloaded online at www.cdphe.state.co.us/ap/downloadforms.html. Failure to notify the Division of startup of the permitted source is a violation of Air Quality Control Commission (AQCC) Regulation No. 3, Part B, Section III.G.1 and can result in the revocation of the permit. 2. Within one hundred and eighty days (180) after commencement of operation or issuance of this permit, whichever comes later, compliance with the conditions contained in this permit shall be demonstrated to the Division. It is the owner or operator's responsibility to 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). AIRS ID: 123/9DEB Page 1 of 9 ilk olor y ,,Depa en : jii 'Health and Environment it Pollution Control Division IF 3. This permits ,:-_.- a if:�,. . • � . �.� -. o• 6-•. the s• 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.) 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 Emission Type Equipment ID Point NO), VOC CO VRU Bypass 003 --- 7.3 --- 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. 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.) AIRS ID: 123/9DEB Page 2 of 9 u� h ` : a:, olor Depa Ai !f P"' IicHealth and Environment ,F Air Pollution Control Division Facility dIRS .,3 r -aaPollutants Equipment Point Control Device Controlled ID VRU 003 Enclosed Flare(s) VOC, HAPs Bypass PROCESS LIMITATIONS AND RECORDS 8. This source shall be limited to the following maximum processing rates as listed below. Monthly records of the actual processing rates shall be maintained by the owner or operator and made available to the Division for inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Process/Consumption Limits Facility AIRS Equipment Point Process Parameter Annual Limit ID VRU Condensate throughput to Heated Separator Bypass 003 and VRT while emissions are routed to 20,001 BBUyr enclosed combustor(s). 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. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 11. The control device(s) covered by this permit is subject to Regulation No. 7, Section XVII.B General Provisions (State only enforceable). These requirements include, but are not limited to: XVII.B.1.b 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. XVII.B.2.d.(i) All combustion devices installed on or after May 1, 201.4, must be equipped with an operational auto-igniter upon installation of the combustion device AIRS ID: 123/9DEB Page 3 of 9 olor �, �,Depa ens w P; •11 Health and Environment s . it Pollution Control Division 12. The separato .�� T „ -r: a ,�;� hisu I kid re sup to Regulation 7, Section XVII.G. (State Only). On or after August 1, 2014, gas coming off a separator, produced during normal operation from any newly constructed, hydraulically fractured, or recompleted oil and gas well, must either be routed to a gas gathering line or controlled from the date of first production by air pollution control equipment that achieves an average hydrocarbon control efficiency of 95%. If a combustion device is used, it must have a design destruction efficiency of at least 98% for hydrocarbons. OPFtATING & MAINTENANCE REQUIREMENTS 13. 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.) 14. The owner or operator shall continuously monitor and record VRU downtime while emissions are routed to the Enclosed Control Device(s) using a SCADA (supervisory control and data acquisition) system. The owner or operator shall use monthly VRU downtime records, monthly condensate throughput records and calculation methods detailed in the O&M Plan to demonstrate compliance with the process and emissions limits specified in this permit. COMPLIANCE TESTING AND SAMPLING Initial Testing Requirements 15. The owner or operator shall demonstrate compliance with opacity standards, using EPA Method 22 to determine the presence or absence of visible emissions. "Visible Emissions" means observations of smoke for any period or periods of duration greater than or equal to one (1) minute in any fifteen (15) minute period during normal operation. (Reference: Regulation No. 7 Section XVII.AlI) 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: 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 (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 AIRS ID: 123/9DEB Page 4 of 9 ' ��'olor. :Depa ent P .li Health and Environment it Pollution Control Division ForajoJ '_'r itettalte•. a.tie pa'tit-€ 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 or Title V Operating Permit) shall apply to this source at any such time that this source becomes major solely by virtue of a relaxation in any permit condition. Any relaxation that increases the potential to emit above the applicable Federal program threshold will require a full review of the source as though construction had not yet commenced on the source. The source shall not exceed the Federal program threshold until a permit is granted. (Regulation No. 3 Part D). 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. (Reference: Regulation No. 8, Part E) GENERAL TERMS AND CONDITIONS 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 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. 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 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. 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. AIRS ID: 123/9DEB Page 5 of 9 � il olor.;i "Depa en . Pw.•li Health and Environment ,iiiit Pollution Control Division lir 22. Unless specifi , �: ed -Y .t �ti g ..,. ,€x9 spec:' onditions 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: Bradley Eades Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to Bill Barrett Corporation AIRS ID: 123/9DEB Page 6 of 9 olor. Depa en of P li Health and Environment it Pollution Control Division Notes to Permit Holder '' me 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: http://www.colorado.gov/cs/Satellite?c=Document C&childpaqename=CDPHE- Main%2FDocument C%2FCBONAddLinkView&cid=1251599389641&pagename=CBONWrapper 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 1830 Yes 92 Toluene 108883 1610 Yes 81 Ethylbenzene 100414 287 Yes 15 003 Xylenes 1130207 599 Yes 30 n-Hexane 110543 10110 Yes 506 2,2,4- 540841 1866 Yes 93 Trimethylpentane 5) The emission levels contained in this permit are based on the following emission factors: Emission Emission CAS# Pollutant Factors Factors Source Uncontrolled Controlled (lb/bbl) (lb/bbl) VOC 14.545 0.727 Engineering Calculation 71432 Benzene 0.0915 0.0046 Engineering Calculation 108883 Toluene 0.0805 0.0040 Engineering Calculation 100414 Ethylbenzene 0.0143 0.0007 Engineering Calculation AIRS ID: 123/9DEB Page 7 of 9 . ,,,i olor : Depa en .. ' •h Health and Environment r it Pollution Control Division CAS# Pollutant Factors Factors Source Uncontrolled Controlled (lb/bbl) (lb/bbl) 1330207 Xylenes 0.0303 0.0015 Engineering Calculation 110543 n-hexane 0.5055 0.0253 Engineering Calculation 540841 2,2,4-TMP 0.0933 0.0047 Engineering Calculation Note: The uncontrolled VOC and HAP emissions for this point were calculated using a ProMax simulation that utilized the April 02, 2015 analysis of a pressurized liquid sample collected from the Ruh 6-62-11-0461 BH2 well. The controlled VOC and HAP emissions factors for point 003 are based I on the combustor 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 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 MACT HH Area Source Requirements: Not Applicable 8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be found at the website listed below: http://ecfr.gpoaccess.gov/ Part 60: Standards of Performance for New Stationary Sources NSPS 60.1-End Subpart A—Subpart KKKK NSPS Part 60,Appendixes Appendix A—Appendix I Part 63: National Emission Standards for Hazardous Air Pollutants for Source Categories MACT 63.1-63.599 Subpart A—Subpart Z MACT 63.600-63.1199 Subpart AA—Subpart DDD MACT 63.1200-63.1439 Subpart EEE—Subpart PPP MACT 63.1440-63.6175 Subpart QQQ—Subpart YYYY MACT 63.6580-63.8830 Subpart ZZZZ—Subpart MMMMM MACT 63.8980-End Subpart NNNNN—Subpart XXXXXX AIRS ID: 123/9DEB Page 8 of 9 %.12 0f0aqvuom 7127000 00,60% 0 01 0 7arz,, olora;- `Depar nen? df P lic Health and Environment it Pollution Control Division 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: 123/9DEB Page 9 of 9 Division Information Engineer: Bradley Eades Control Engineer: Christopher Laplante Review Date: 09/30/2015 Application Date: 05/18/2015 Facility Identifiers Permit No. 15WE0960 Potentially located in ozone nonattainment area AIRs County# 123 Weld Facility# 9DEB Facility Type: exploration and production facility 2 Located in the 8-hour non-attainment area? O True Minor Synthetic Minor for: ' VOC [ NOx r CO Administrative Information Company Name: Bill Barrett Corporation Source Name: Ruh 6-62-11 NENW Source Location: NENW Sec 11, T6N, R62W SIC: 1311 Address 1: Bill Barrett Corporation Mailing Address 2: 1099 18th St.,Suite 2300 Address ty,State Zip: Denver, Colorado 80202 Name: Wesley Hill Person To Phone: 303-312-8546 Contact Fax: 303-291-0420 Email: whill@billbarrettcorp.com 'Requested Action Self Certification Required? Yes Issuance Number: 1 Source Description: Oil and gas exploration and production facility known as the Ruh 6-62-11 NENW, located in the NENW Sec 11,T6N, R62W,Weld County, Colorado. Point Name Type Control Action Newly 003 VRU Bypass Separator Venting Flare reported source Controlled emissons from one(1)Heated separator and one(1)Vapor Recovery Tower(VRT)used to reduce flash emissions.Emissions are a function of condensate throughput while emissions bypass the Vapor Recovery Units(VRU). 003 38%VRU bypass assumed Equipment Description This source vents emissions from: One(1)Heated Separators and one(1)Vapor Recovery Tower(VRT) *Emissions from this source are: routed to a flare *Emissions are routed to sales line via VRU during normal operation,however emissions are routed to an enclosed flare during VRU downtime.This permit addresses emissions during VRU downtime Calculations Total Throughput to VRT/HFGS 52633 bbl Estimated annual VRU bypass 38% Requsted Throughput during VRU bypass 20001 bbl Control Flare Efficiency 95.00°.61 Emissions Summar(Table Pollutant Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 14.5452 lb/bbl 145.46 tpy 7.27 tpy Benzene 0.0915 lb/bbl 1830 lb/yr 92 lb/yr Toluene 0.0805 lb/bbl 1610 lb/yr 81 lb/yr Ethylbenzene 0.0143 lb/bbl 287 lb/yr 14 lb/yr Promax 3.2 Xylene 0.0300 lb/bbl 599 lb/yr 30 lb/yr 224-TMP 0.0933 lb/bbl 1866 lb/yr 93 lb/yr n-Hexane 0.5055 lb/bbl 10110 lb/yr 506 lb/yr Notes: • Emission factors derived from ProMax3.2 model using Ruh 6-62-11-0461BH2 pressurized liquid analysis collected 4/2/2015 as liquid composition inputs from inlet separator.Mass flow(lb/hr)was taken from ProMax emission stream"VRT Gas to ECD"and"Flash Gas to VRU"streams(the respective mass flows were summed)and divided by modeled throughput of 1 bbl/d to derive uncontrolled emission factors. Emissions are based on 8760 hours of operation per year with estimated 38%VRU downtime(3329 hrs/yr)when emissions are routed to flare Emission rates in notes to permit holder are based on operator calculations supplied in application.Differences are due to rounding and are insignificant. Flaring Information Equipment Description Flare to combust flash emissions from pressurized liquids during VRU downtime. Manufacturer Cimarron Model 48" Serial Number TBD Gas Heating Value 2442.7 Btu/scf Throughput 8160.78624 MMBtu/yr Heat Content Calculation HHV(Btu/scf) 'MMscf/bbl Vol.(MMscf/yr)Total(MMBtu/yr)Sep.Vapor 2322.68 0.000161327 3.226627117 7494.422271 VRT Vapor 2402.84 1.39E-05 2.773E-01 666.3639688 TOTAL - - 3.5040 8160.78624 *MMscf/bbl is derived from Std Vapor Volumetric Flow calculated using Promax based on 1bbVd Combustion emission factor source: AP-42:Chapter 13.5 0.07 Ilb NOX/MMBtu 0.37 IIb CO/MMBtu Emissions Summar,Table NOx 0.28 tpy CO 1.51 tpy *Since combustion emissions are below APEN thresholds for the respective pollutant,they are not included as limits in the permit. Regulatory Applicability AQCC Regulation 1 This source is subject to the opacity requirements for flares in Section I I.A.5:'No owner or operator of a smokeless flare or other flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30%opacity.' AQCC Regulation 2 Section I.A applies to all emission sources."No person,wherever located,shall cause or allow the emission of odorous air contaminants from any single source such as to result in detectable odors which are measured in excess of the following limits: For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven(7)or more volumes of odor free air." AQCC Regulation 7 Was the well newly constructed,hydraulically fractured,or recompleted on or after August 1,2014? Wells at this facility began producing February 2015.Therefore this separation equipment is subject to Reg 7,Section XVII.G. and control requirements of Reg 7,Section XVII.B.2 15WE0960.CP1.xlsm Controlled emissons from one(1)Heated separator and one(1)Vapor Recovery Tower(VRT)used to reduce flash emissions.Emissions are a function of condensate throughput while emissions bypass the Vapor Recovery Units(VRU). 003 38%VRU bypass assumed Miscellaneous Notes Based on conversation with Wes Hill at Bill Barrett Corp.,SCADA controls(automated monitoring for VRU downtime)are currently installed and operating at this site in compliance with condition 14 in the Operating and Maintenance section. This permit and associated permit limits and conditions are based on hydrocarbon liquid throughput since Bill Barrett Corp. does not have gas flow meters installed at this facility at this time. Sent draft of permit to operator on 10/13/2015 and received comments 10/22/2015.W.Hill pointed out error in ethylbenzene emissions in"notes to permit holder".Emissions were corrected to reflect 287 Ib/yr Ethylbenzene. • • 15WE0960.CPLzlsm AIRS(County/Plant) 123/9CF9 Permit No. 15WE0371 Date 5/15/2015 Controlled Controlled Actual Requested NCRP= Uncontrolled Emission Emisison Factor Emissions Emissions PTE Ctrl. reportable Point# SCC Pollutant or CAS Factor Source (tpy)* (tpy)* (tpy)* Elf% ? 005 31000205 VOC 14.545 lb/bbl ProMax 6.06 7.3 145.5 95% 005 31000205 NOx 0.068 Ib/MMBTU AP-42 0.28 NA 0.33 0% 005 31000205 CO 0.37 Ib/MMBTU AP-42 1.53 NA 1.78 0% 005 31000205 Benzene 0.092 lb/bbl ProMax 0.04 0.05 0.92 95% Yes 005 31000205 n-Hexane 0.506 lb/bbl ProMax 0.21 0.25 5.06 95% Yes -005 31000205 Toluene 0.081 lb/bbl ProMax 0.03 0.04 0.81 95% Yes 005 31000205 Ethylbenzene 0.014Ib/bbl ProMax 0.01 0.01 0.14 95% Yes 005 31000205 225-TMP 0.093 lb/bbl ProMax 0.04 0.05 0.93 95% Yes 005 31000205 Xylenes 0.030 lb/bbl ProMax 0.01 0.02 0.3 95% Yes L RI N O N y d O O a o • t- co a3 ea O, a Z y ::> m m m 7 • 0 .. 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