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Home My WebLink About20151153.tiff A COPHE COLORADO Co Department of Public Health El Environment Dedicated to protecting and improving the health and environment of the people of Colorado Weld County - Clerk to the Board 1150 O St PO Box 758 Greeley, CO 80632 April 14, 2015 Dear Sir or Madam: On April 15, 2015, the Air Pollution Control Division will begin a 30-day public notice period for Carrizo Oil Et Gas Inc. - Timbro Ranch 1-31-10-59. 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, f• 1 , RECEIVED Clara Gonzales APR 2 1 2015 Public Notice Coordinator Stationary Sources Program WELD COUNTY Air Pollution Control Division COMMISSIONERS Enclosure J 2015-1153 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 Co Notice of a Proposed Project or Activity Warranting Public ' Comment Website Title: Carrizo Oil Et Gas Inc. - Timbro Ranch 1-31-10-59 - Weld County Notice Period Begins: April 15, 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: Carrizo Oil Et Gas Inc. Facility: Timbro Ranch 1-31-10-59 Oil and Gas Exploration and Production Facility SESE SEC 31 T1ON R59W Weld County The proposed project or activity is as follows: Applicant proposes to permit the flaring of produced gas at an exploration and 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 14WE1716 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 VW COLORADO a �t i g Ai u, � # a a a a a a, Matt= E STATE OF COLORADO limns" ttigim IHRNM' fa'gnat, (a:alita c% S P COLORADO DEPARTr ENT OF PUBLIC HEALTH AND ENVIRONMENT AIR POLLUTION CONTROL DIVISION lt,1 (' o TELEPHONE: (303) 692-3150 '\w 1876 CONSTRUCTION PERMIT PERMIT NO: 14WE1716 Issuance 1 DATE ISSUED: ISSUED TO: Carrizo Oil & Gas, Inc. THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas exploration and production facility known as the Timbro Ranch 1-31-10-59, located in the SESE SEC 31 T1 ON R59W, Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID SEPARATOR 003 One low-pressure separator controlled by one open flare. Flare 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 issuance of this permit, 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 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 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 AIRS ID: 123/9D45 Page 1 of 8 a . olor Depa P 'di `Health and Environment A en it Pollution Control Division Wli, II of eighteen it (fi - n `— -te c• !- -ction 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. 6. Within one hundred and eighty (180) days after issuance of this permit, the operator shall install a flow meter to monitor and record volumetric flow rate of natural gas vented from the separator. The operator shall used the gas flow rate listed in the application for actual flow rate until the flow meter is installed, not to exceed one hundred and eighty (180) days after issuance of this permit. EMISSION LIMITATIONS AND RECORDS 7. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis). (Reference: Regulation No. 3, Part B, Section II.A.4) Annual Limits: Facility AIRS Tons per Year Emission Type Equipment ID Point NO, VOC CO SEPARATOR 003 3.5 67.3 18.8 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. 8. The emission points in the table below shall be operated and maintained with the control equipment as listed in order to reduce emissions to less than or equal to the limits established in this permit (Reference: Regulation No.3, Part B, Section III.E.) AIRS ID: 12319D45 Page 2 of 8 al olora 5 Deparineneil P%lici1Health and Environment , tk h.wi .x\ir Pollution Control Division tf r : tig .I` ,.i _ ",z., 22 ito 22: 22 Facility /zikS " Control Device Pollutants Equipment ID Point Controlled SEPARATOR 003 Open Flare VOC PROCESS LIMITATIONS AND RECORDS 9. This source shall be limited to the following maximum processing rates as listed below. Monthly records of the actual processing rates shall be maintained by the owner or operator and made available to the Division for inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Process/Consumption Limits Facility AIRS Process Parameter Annual Limit Equipment ID Point SEPARATOR 003 Gas Vented from Separator 58.9 MMSCF 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. The operator shall continuously monitor and record the volumetric flowrate of natural gas vented from the separator using a flow meter. The flow meter shall continuously measure flowrate and record total volumetric flow vented from the separators. The operator shall use monthly throughput records to demonstrate compliance with the process limits and to calculate emissions as described in this permit. STATE AND FEDERAL REGULATORY REQUIREMENTS 10. 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) 11. 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. & 5.) 12. This source is subject to the odor requirements of Regulation No. 2. (State only enforceable) 13. The open flare covered by this permit has been approved as an alternative emissions control device under Regulation No. 7, Section XVII.B.2.e. The open flare shall 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 open flare, 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 according to the following schedule: AIRS ID: 123/9D45 Page 3 of 8 olor Depa en •Ii Health and Environment it Pollution Control Division o If insta I e •- u._ -tion . ` :- combustion device; o If installed before May 1, 2014, by or before May 1, 2016, or after the next combustion device planned shutdown, whichever comes first. 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 Initial Testing Requirements 15. Within 180 days the owner or operator shall demonstrate compliance with opacity standards, using EPA Method 22 to determine the presence or absence of visible emissions. "Visible Emissions" means observations of smoke for any period or periods of duration greater than or equal to one (1) minute in any fifteen (15) minute period during normal operation. (Reference: Regulation No. 7, Section XVII.A.II) Periodic Testing Requirements 16. On a weekly basis, the owner or operator shall demonstrate compliance with opacity standards, using EPA Method 22 to determine the presence or absence of visible emissions. "Visible Emissions" means observations of smoke for any period or periods of duration greater than or equal to one (1) minute in any fifteen (15) minute period during normal operation. (Reference: Regulation No. 7, Section XVII.A.II) 17. On an annual basis, the operator shall complete a site specific extended gas analysis of the natural gas produced at this site that is routed to the flare in order to verify the VOC and hazardous air pollutants (HAP) content (weight fraction) of this emission stream used in the permit application. Results of testing shall be used to determine site-specific emission factors using Division approved methods. 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: 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 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: 12319D45 Page 4 of 8 oloraaa tDepaeneniadf PIicHealth and Environment �z Ra 7 5 it Pollution Control Division cf , r 1 For anymonotriteritke "_ a a t 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 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). 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 11.8 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 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. 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 AIRS ID: 123/9D45 Page 5 of 8 olor Depa en • P .Ii ''Health and Environment it Pollution Control Division permit may bta.. E•.^ • a . ti `'` - i -r t. =ficati.- _• 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: okiNzte_______ Christopher Kester Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to Carrizo Oil & Gas, Inc. AIRS ID: 12319D45 Page 6 of 8 `3 waral rawn tz- Not olora Depar ,nen i f PabliccHealth and Environment , r z ��r t . Air Pollution Control Division t4 u s '46 Notes to Permit Holder attMt" tt`rne of#Yifepeff is uanee'5 °11"° salim 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.qov/cs/Satellite?c=Document C&childpagename=CDPHE- Main°/02FDocument 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 Rate Point Pollutant CAS # (Ib/yr) reportable? (lb/yr) 003 Benzene 71432 14363 Yes 719 003 n-Hexane 110543 84324 Yes 4217 003 Toluene 108883 11171 Yes 559 003 Ethylbenzene 100414 1667 Yes 84 003 Xylenes 1330207 3086 Yes 155 5) The emission levels contained in this permit are based on the following emission factors: Point 003: Weight Emission Fraction Factors Pollutant of Gas Uncontrolled Source (%) lb/MMscf NOx (lb/MMBTU) 0.068 AP-42 CO (lb/MMBTU) 0.37 AP-42 VOC (lb/MMBTU) 56.2 26.56 Gas Analysis Benzene 0.30 243.84 Gas Analysis Toluene 0.23 189.65 Gas Analysis Ethylbenzene 0.03 28.29 Gas Analysis Xylenes 0.06 52.38 Gas Analysis n-hexane 1.76 1431.63 Gas Analysis AIRS ID: 123/9D45 Page 7 of 8 0101 Depa en .li 'Health and Environment a ir Pollution Control Division a §i. 6) In accordance with �t , ,> .-7 `as;ssion (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 and HAP PSD or NANSR Synthetic Minor Source of VOC and HAP 8) Full text of the Title 40, Protection of Environment Electronic Code of Federal Regulations can be found at the website listed below: h ttp://ecfr.q po a ccess.q ov/ Part 60: Standards of Performance for New Stationary Sources NSPS 60.1-End Subpart A—Subpart KKKK NSPS Part 60, Appendixes Appendix A—Appendix I Part 63: National Emission Standards for Hazardous Air Pollutants for Source Categories MACT 63.1-63.599 Subpart A—Subpart Z MACT 63.600-63.1199 Subpart AA—Subpart DDD MACT 63.1200-63.1439 Subpart EEE—Subpart PPP MACT 63.1440-63.6175 Subpart QQQ—Subpart YYYY MACT 63.6580-63.8830 ' Subpart ZZZZ—Subpart MMMMM MACT 63.8980-End Subpart NNNNN—Subpart XXXXXX 9) A self certification form and guidance on how to self-certify compliance as required by this permit may be obtained online at: http://www.colorado.gov/pacific/cdphe/air-permit-self-certification AIRS ID: 12319D45 Page 8 of 8 Division Information Engineer: Christopher Kester • Control Engineer: Stefanie Rucker Review Date: 03/02/2015 Application Date: 09/30/2015 Facility Identifiers Permit No. 14WE1716 AIRS County# 123 Weld Facility# 9D45 Facility Type: exploration and production facility ❑ Located in the 8-hour non-attainment area? O True Minor Synthetic Minor for: l VOC NOx r CO Administrative Information Company Name: Carrizo Oil & Gas, Inc. Source Name: Timbro Ranch 1-31-10-59 Source Location: SESE SEC 31 T10N R59W SIC: 1311 Address 1: Carrizo Oil&Gas, Inc. Mailing Address 2: 500 Dallas, Suite 2300 Address City,State Zip: Houston,TX Name: Patricia Moden Person To Phone: 713-328-1036 Contact Fax: Email: Patricia.moden@crzo.net Requested Action Self Certification Required? Yes Issuance Number 1 Source Description: Oil and gas exploration and production facility known as the Timbro Ranch 1-31-10-59, located in the SESE SEC 31 T10N R59W,Weld County. Colorado. Point Name Type _ Control Action Newly 003 SEPARATOR Separator Venting Flare reported source 003 One low-pressure separator controlled by one open flare.Flare has a minimum control efficiency of 95%. Open Flare is ok here because source began operation on 7/2//2014 Equipment Description This source vents natural gas from: a well head separator Emissions from this source are: routed to a flare Natural gas venting from a well head separator.Emissions from this source are routed to a flare. Calculations Emission Calculation Method EPA Emission Inventory Improvement Program Publication:Volume II,Chapter 10-Displacement Equation(10.4-3) Ex=Q*MW*Xx/C Ex=emissions of pollutant x Q=Volumetric flow rate/volume of gas processed MW=Molecular weight of gas=SG of gas'MW of air Xx=mass fraction of x in gas C=molar volume of ideal gas(379 scf/lb-mol)at 60F and 1 atm Throughput(0) 58.9 MMscf/yr 6723.744292 scf/hr MW 30.86208 Ib/Ib-mol 0.161369863 MMscf/d mole% MW Ibxdbmol mass fraction lb/hr lb/yr tpy Helium 0.0100 4.0026 0.000 0.0000 0.01 62.20 0.03 CO2 2.8600 44.01 1.259 0.0408 22.33 195611.10 97.81 N2 1.3700 28.013 0.384 0.0124 6.81 59642.56 29.82 methane 55.6778 16.041 8.931 0.2894 158.45 1388000.40 694.00 ethane 11.5084 30.063 3.460 0.1121 61.38 537679.34 268.84 propane 14.3268 44.092 6.317 0.2047 112.07 98171422 490.86 isobutane 1.7700 58.118 1.029 0.0333 18.25 159867.44 79.93 n-butane 6.9184 58.118 4.021 0.1303 71.33 624873.94 312.44 isopentane 1.5978 72.114 1.152 0.0373 20.44 179068.04 89.53 n-pentane 2.3154 72.114 1.670 0.0541 29.62 259490.64 129.75 cyclopentane 0.2285 70.13 0.160 0.0052 2.84 24903.83 12.45 n-Hexane 0.6296 86.18 0.543 0.0176 9.63 84323.24 42.16 cyclohexane 0.1694 84.16 0.143 0.0046 2.53 22156.20 11.08 Other hexanes 1.0891 86.18 0.939 0.0304 1665 145864.74 72.93 heptanes 0.6064 100.21 0.608 0.0197 10.78 94437.90 47.22 methylcyclohexane 0.1277 98.19 0.125 0.0041 2.22 19486.52 9.74 224-TMP 0.0009 114.23 0.001 0.0000 0.02 159.77 0.08 Benzene 0.1183 78.12 0.092 0.0030 1.64 14362.27 7.18 Toluene 0.0780 92.15 0.072 0.0023 1.28 11170.33 5.59 Ethylbenzene 0.0101 106.17 0.011 0.0003 0.19 1666.48 0.83 Xylenes 0.0187 106.17 0.020 0.0006 0.35 3085.46 1.54 C8+Heavies 0.3611 120 0.433 0.0140 7.69 67341.82 33.67 VOC mass fraction: 0.562 Total VOC(Uncontrolled) 1346.99 Notes Mole%,MW,and mass fractions from Timbro Ranch 1-31-10-59 gas analysis collected 8/7/2014 Emissions are based on 8760 hours of operation per year. MW of C8+stream estimated to be 120 Ib/Ib-mol 14WE1716.CP1.xlsm 003 One low-pressure separator controlled by one open flare.Flare has a minimum control efficiency of 95%. Flaring Information Equipment Description Flare to combust low-pressure separator gas during VRU downtime. Gas Heating Value 1721.8 Btu/scf Throughput 101414.02 MMBtu/yr Overall Control 95.00% Combustion emission factor source: AP-42:Chapter 13.5 0.068 llb NOX/MMBtu 0.37 [lb CO/MMBtu Emissions Summary Table Pollutant Uncontrolled Emission Factor Uncontrolled Emissions Controlled Emissions Source VOC 2656 lb/MMBtu 1346.99 tpy 67.35 tpy Gas Analysis NOx 0.068 Ib/MMBtu 3.45 tpy 3.45 tpy AP-42 CO 0.37 Ib/MMBtu 18.76 tpy 18.76 tpy AP-42 Benzene 243.841b/MMscf 14362 lb/yr 718 lb/yr Gas Analysis n-Hexane 1431.63 lb/MMscf 84323 lb/yr 4216 lb/yr Gas Analysis Toluene 189.649 lb/MMscf 11170 lb/yr 559 lb/yr Gas Analysis Xylenes 52.385 lb/MMscf 3085 lb/yr 154 lb/yr Gas Analysis Ethylbenzene 28.293 lb/MMscf 1666 lb/yr 83 lb/yr Gas Analysis Regulatory Applicability AQCC Regulation 1 This source is subject to the opacity requirements for flares in Section II.A.5.'No owner or operator of a smokeless flare or other flare for the combustion of waste gases shall allow or cause emissions into the atmosphere of any air pollutant which is in excess of 30%opacity.' AQCC Regulation 2 Section I.A applies to all emission sources."No person,wherever located,shall cause or allow the emission of odorous air contaminants from any single source such as to result in detectable odors which are measured in excess of the following limits. For areas used predominantly for residential or commercial purposes it is a violation if odors are detected after the odorous air has been diluted with seven 17)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? yes This separator is subject to Reg 7,Section XVII.G.and control requirements of Reg 7,Section XVII.B.2 14WE1716.C P 1.xlsm z tia a G M 1 co — \ _O p o O O = d c cc ir, CI r E 7 y t ( ,r r, c m m o L C ',2. > — o E o a m ` V` o c � � v — c o c o c o `0 v c c '1 9 _ — F o - F -- co. a — 0. v't a._ ., o o a _ '> = r x = < — c° = C o 0 0. m c Q m E z „ c• 7 7 x d 0 c r. $ - v c ^ o V L ^J ? o T c V y QEI L - ? 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