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Home My WebLink About20140665.tiff• STATE OF COLORADO John W.Hickenlooper,Governor c Larry Wolk,MD,MSPH ��oF o 0 Executive Director and Chief Medical Officer Fv c9 Dedicated to protecting and improving the health and environment of the people of Colorado �,\I� � ;.�+•' 4300 Cherry Creek Dr.S. Laboratory Services Division •rav76`' Denver,Colorado 80246-1530 8100 Lowry Blvd. -- Phone(303)692-2000 Denver,Colorado 80230-6928 Colorado Department Located in Glendale,Colorado (303)692-3090 of Public Health www.colorado.gov/cdphe and Environment Weld County—Clerk to the Board 1150 O Street PO Box 758 Greeley, CO 80632 February 27,2014 Dear Sir or Madam: On March 3,2014,the Air Pollution Control Division will publish a public notice for Noble Energy, Inc.— SLW Ranch B0I EcoNode, in the The Greeley Tribune. 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 date the public notice is published. Please send any comment regarding this public notice to the address below. Colorado Dept. of Public Health& Environment APCD-SS-B I 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 Attention: Clara Gonzales Regards, RECEIVED Clara Gonzales Public Notice Coordinator 0 2()14 Stationary Sources Program MAR Air Pollution Control Division WELD COUNTY Enclosure COMMISSIONERS cRUb1\G ,a/RAZ AL 3 • t0 • 001'-1 test 711i I Tv: -p 3•Li•ly 2014-0665 STATE OF COLORADO John W.Hickenlooper,Governor Larry Wolk,MD,MSPH a.c c Executive Director and Chief Medical Officer No; Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry Creek Or.S. Laboratory Services Division z+rave++ Denver,Colorado 80246-1530 8100 Lowry Blvd. Phone(303)692-2000 Denver,Colorado 80230-6928 Colorado Department Located in Glendale,Colorado (303)692.3090 of Public Health www.colorado.gov/cdphe and Environment Website Title: Noble Energy, Inc.—SLW Ranch 801 EcoNode—Weld County Released To: The Greeley Tribune On: February 27,2014 Published: March 3, 2014 PUBLIC NOTICE OF A PROPOSED PROJECT OR ACTIVITY WARRANTING PUBLIC COMMENT 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: Noble Energy, Inc. Facility: SLW Ranch 801 EcoNode Exploration and production wellhead site - SESE Section 1,T5N, R64W Weld County The proposed project or activity is as follows: Newly permitted exploration and production wellhead site including condensate tanks,truck loadout,produced water tanks and a venting flare. 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 111.C.I.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 13WE2740 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 www.colorado.gov/cdphe/AirPublicNotices 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: Stephanie Chaousy Colorado Department of Public Health and Environment 4300 Cherry Creek Drive South, APCD-SS-BI Denver, Colorado 80246-1530 cdphe.commentsapcd@state.co.us DRAFT STATE OF COLORADO OF'C COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT F�'=- AIR POLLUTION CONTROL DIVISION TELEPHONE:(303)692-3150 • • 1876' CONSTRUCTION PERMIT PERMIT NO: 13W E2740 Issuance 1 DATE ISSUED: ISSUED TO: Noble Energy, Inc. THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Oil and gas facility, known as the SLW Ranch B01 Econode, located in the SENE of Section 1, Township 5 North, Range 64 West, in Weld County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: Facility AIRS Equipment Point Description ID Ten (10) above ground 500 bbl atmospheric condensate storage TANKS 004 tanks. Emissions from these tanks are controlled by an enclosed flare. Truck 005 Truck Condensate Loadout. Loadout Two (2) 60 bbl and four (4) 500 bbl above ground atmospheric PW 006 produced water storage tanks. Emissions from these tanks are controlled by an enclosed flare. Separator controlled by a flare stack. Flare has a minimum Flare 007 combustion efficiency of 95%. The flare is not enclosed. Fugitive 008 Equipment leaks (fugitive VOCs) from a natural gas exploration and Emissions production facility. 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. AIRS ID: 123/9BE5 Page 1 of 14 Condensate Tank SM/M Version 2012-1 lo Depa e f li Health and Environment it Pollution Control Division 2. Within one hu e' ) ce of ermit,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 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 following information shall be provided to the Division within fifteen (15) days after issuance of permit. • manufacturer • model number • serial number This information shall be included with the Notice of Startup submitted for the equipment. (Reference: Regulation No. 3, Part B, III.E.) 6. The operator shall retain the permit final authorization letter issued by the Division, after completion of self-certification,with the most current construction permit. This construction permit alone does not provide final authority for the operation of this source. EMISSION LIMITATIONS AND RECORDS 7. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis). (Reference: Regulation No. 3, Part B, Section II.A.4) Annual Limits: Faciiky AIRS Tons per Year Equipment ID Point NO, VOC CO Emission Type TANKS 004 — 3.5 — Point Truck Loadout 005 — 4.5 — Point PW 008 — 2.0 — Point Flare 007 4.1 33.6 22.0 Point Fugitive 008 -- 43.8 — Fugitive Emissions See'Notes to Permit Holder'for information on emission factors and methods used to calculate lint. Facility-wide emissions of each individual hazardous air pollutant shall be less than 8.0 tpy. AIRS ID: 123/9BE5 Page 2 of 14 Depa e f bli Health and Environment it Pollution Control Division Facility-wide aDolor f h s is sh 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. 8. The emission points in the table below shall be operated and maintained with the control equipment as listed in order to reduce emissions to less than or equal to the limits established in this permit (Reference: Regulation No.3, Part B, Section III.E.) Facility AIRS Pollutants Equipment Point Control Device Controlled ID TANKS 004 Enclosed flare VOC Truck 005 Enclosed flare VOC Loadout PW 006 Enclosed flare VOC Flare 007 Separator controlled by a flare stack VOC 9. Point 008: The operator shall calculate actual emissions from this emissions point based on representative component counts for the facility with the most recent gas analysis, as required in the Compliance Testing and Sampling section of this permit. The operator shall maintain records of the results of component counts and sampling events used to calculate actual emissions and the dates that these counts and events were completed.These records shall be provided to the Division upon request. PROCESS LIMITATIONS AND RECORDS 10. 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 TANKS 004 Condensate throughput 700,000 BBUyr Truck 005 Condensate loading 700,000 BBUyr Loadout PW 006 Produced water throughput 300,000 BBUyr Flare 007 Natural gas flaring 90 MMSCF/yr The owner or operator shall calculate monthly process rates based on the calendar month. AIRS ID: 123/9BE5 Page 3 of 14 lo Depa e f Ii Health and Environment it Pollution Control Division Compliance w' n Ii ' e det ' ed 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 11. 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) 12. 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.) 13. This source is subject to the odor requirements of Regulation No.2.(State only enforceable) 14. Point 004: 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 oan, by means of visual observation from the outside of the enclosed combustion device, or by other means approved by the Division, determine whether it is operating properly. The operator shall comply with all applicable requirements of Section XII. 15. Point 004: This source is subject to the recordkeeping, monitoring, reporting and emission control requirements of Regulation 7, Section XII. The operator shall comply with all applicable requirements of Section XII. 16. Point 004: The flare covered by this permit is subject to Regulation No. 7, Section XVII.B 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. 17. Point 004: The condensate storage tanks covered by this permit are subject to Regulation 7, Section XVII emission control requirements. These requirements include, but are not limited to: Section XVII.C. - Emission reduction from condensate storage tanks at oil and gas exploration and production operations, natural gas compressor stations, natural gas drip stations and natural gas processing plants. XVII.C.1. Beginning May 1, 2008, owners or operators of all atmospheric condensate storage tanks with uncontrolled actual emissions of volatile organic compounds equal to or greater than 20 tons per year based on a rolling twelve-month total shall operate air pollution control equipment that has an average control efficiency of at least 95% for VOCs on such tanks. • AIRS ID: 123/9BE5 Page 4 of 14 Depa e f bli Health and Environment it Pollution Control Division XVII.C.3. Dolor : o r o any nsate storage tank that is required to control volatile organic compound emissions pursuant to this section XVII.C. shall visually inspect or monitor the Air Pollution Control Equipment to ensure that it is operating at least as often as condensate is loaded out from the tank, unless a more frequent inspection or monitoring schedule is followed. In addition, if a flare or other combustion device is used,the owner or operator shall visually inspect the device for visible emissions at least as often as condensate is loaded out from the tank. XVII.C.4. Recordkeeping:The owner or operator of each condensate storage tank shall maintain the following records for a period of five years: XVII.C.4.a. Monthly condensate production from the tank. XVII.C.4.b For any condensate storage tank required to be controlled pursuant to this section XVII.C., the date, time and duration of any period where the air pollution control equipment is not operating. The duration of a period of non-operation shall be from the time that the air pollution control equipment was last observed to be operating until the time the equipment recommences operation. XVII.C.4.c. For tanks where a flare or other combustion device is being used, the date and time of any instances where visible emissions are observed from the device. 18. Point 008: This source is subject to Regulation No. 7, Section XII.C General Provisions (State only enforceable). All condensate collection, storage, processing and handling 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. The operator shall comply with all applicable requirements of Section XII. 19. Point 008: Minor sources in designated nonattainment or attainment/maintenance areas that are otherwise not exempt pursuant to Section II.D. of Regulation No. 3, Part B, shall apply Reasonably Available Control Technology (RACT) for the pollutants for which the area is nonattainment or attainment/maintenance (Reference: Regulation No. 3, Part B, III.D.2.a). This requirement to apply RACT shall be satisfied by installing/implementing the following emission controls: a. Directed Inspection&Maintenance as described below shall satisfy the requirement to apply RACT. i. Auditory/visual/olfactory inspection(AVO)will be performed on a quarterly basis. ii. For each leak found in the AVO inspection, a gas detector may be used to determine the size of the leak. The gas detector shall be regularly calibrated. Component leaks greater than 10,000 ppm shall be managed in accordance with Item (vi) below, unless it is unfeasible to make the repair without shutting down the affected operation of the facility. Component leaks less than 10,000 ppm shall not require repair. For such component leaks that require a shutdown to be repaired, repair shall occur during the first shutdown of the affected operation after the leak is discovered. iii. For repair, valves adjacent to the equipment to be repaired will be closed if practicable, minimizing the volume released. AIRS ID: 123/9BE5 Page 5 of 14 11010 Depa e f Ii Health and EnvironmentDivisionit Pollution Control s cree ing AVO to determine if the leak is repaired. v. The following records shall be maintained for a period of two years: • The name of the site screened via AVO inspection and the name of the inspector. • Components evaluated with the gas detector. • Repair methods applied. • Dates of the AVO inspections, gas detector calibrations, attempted repairs, successful repairs, repair delays, and post- repair screenings. vi. Leaks shall be repaired as soon as practicable, but no later than 15 calendar days after detection, unless it is technically or operationally infeasible to make the repair within 15 calendar days. Records documenting the rationale shall be maintained if it is technically or operationally infeasible to make the repair within 15 calendar days. OPERATING & MAINTENANCE REQUIREMENTS 20. Point 004: 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 bythe 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 Testinu Requirements 21. Point 004: The operator shall complete site specific sampling including a compositional analysis of the pre-flash pressurized condensate routed to these storage tanks and a sales oil analysis to determine RVP and API gravity. Testing shall be in accordance with the guidance contained in PS Memo 05-01. Results of testing shall be used to determine a site- specific emissions factor using Division approved methods. Results of site-specific sampling and analysis shall be submitted to the Division as part of the self-certification and used to demonstrate compliance with the emissions factors chosen for this emissions point. 22. Point 004: The owner or operator shall demonstrate compliance with Condition 14, using EPA Method 22 to measure opacity from the flare. The observation period shall be a minimum of fifteen consecutive minutes. 23. Point 007: The operator shall complete an initial site specific extended gas analysis of the natural gas produced at this site in order to verify the VOC,benzene,toluene,ethylbenzene, xylenes, n-hexane, and 2,2,4-trimethylpentane 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. Results of site-specific sampling and analysis shall be submitted to the Division as part of the self-certification and used to demonstrate compliance with the emissions factors chosen for this emissions point. 24. Point 008: Within one hundred and eighty days (180) after issuance of this permit, the owner or operator shall complete the initial extended gas analysis of gas samples that are representative of volatile organic compound (VOC) that may be released as fugitive AIRS ID: 123/96E5 Page 6 of 14 olor Depa e f bli Health and Environment it Pollution Control Division emissions. T ' e a sh in t pliance demonstration as required in the Emission Limits and Records section of this permit. The operator shall submit the results of the gas analysis and emission calculations to the Division as part of the self- certification process to ensure compliance with emissions limits. 25. Point 008: Within one hundred and eighty days (180) after issuance of this permit, the operator shall complete a hard count of components at the source and establish the number of components that are operated in "heavy liquid service", "light liquid service", "water/oil service" and "gas service". The operator shall submit the results to the Division as part of the self-certification process to ensure compliance with emissions limits. Periodic Testing Requirements 26. Point 007: 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 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. 27. Point 008: On an annual basis, the owner or operator shall complete an extended gas analysis of gas samples that are representative of volatile organic compounds (VOC) and hazardous air pollutants (HAP) that may be released as fugitive emissions. This extended gas analysis shall be used in the compliance demonstration as required in the Emission Limits and Records section of this permit. ADDITIONAL REQUIREMENTS 28. A revised Air Pollutant Emission Notice(APEN)shall be filed: (Reference: Regulation No.3, Part A, II.C) a. Annually by April 30th whenever a significant increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change in actual emissions of five (5) tons per year or more, above the level reported on the last APEN; or For volatile organic compounds (VOC) and nitrogen oxides sources (NO,) in ozone nonattainment areas emitting less than 100 tons of VOC or NO per year,a change in annual actual emissions of one(1)ton per year or more or five percent,whichever is greater, above the level reported on the last APEN; or For sources emitting 100 tons per year or more, a change in actual emissions of five percent or 50 tons per year or more, whichever is less, above the level reported on the last APEN submitted; or For any non-criteria reportable pollutant: If the emissions increase by 50% or five (5)tons per year, whichever is less, above the level reported on the last APEN submitted to the Division. b. Whenever there is a change in the owner or operator of any facility, process, or activity; or c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or d. Whenever a permit limitation must be modified; or AIRS ID: 123/9BE5 Page 7 of 14 olo Depa e f Ii Health and Environment it Pollution Control Division e. No lat d e ' N e . 29. 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). 30. 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 limitatign and shall be subject to all appropriate applicable requirements of Subpart HH. (Reference: Regulation No. 8, Part E) GENERAL TERMS AND CONDITIONS 31. 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. 32. 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. 33. 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. 34. 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. 35. 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. AIRS ID: 123/9BE5 Page 8 of 14 olor Depa e f bli Health and Environment it Pollution Control Division 36. Section 25-7- ), S. s urces ired 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. 37. 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: Stephanie Chaousy, PE Permit Engineer Permit History Issuance Date Description Issuance 1 This Issuance Issued to Noble Energy, Inc. Newly permitted condensate tanks, truck loadout and produced water tanks. AIRS ID: 123/9BE5 Page 9 of 14 olo Depa e f bli Health and Environment it Pollution Control Division Notes to Permit Holder a of 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 maybe revised upon request of the owner or operator providing there is no ezceedance 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: htto://www.colorado.aov/cs/Satellite?c=Document C&childcaaename=CDPHE- Main%2FDocument C%2FCBONAddLinkView&cid=1251599389641&oaaename=CBONWraooer 4) The following emissions of non-criteria reportable air pollutants are estimated based upon the process limits as indicated in this permit This information is listed to inform the operator of the Division's analysis of the specific compounds emitted if the source(s)operate at the permitted limitations. AIRS ID: 123/9BE5 Page 10 of 14 D olo Depa e f Ili!. PollutionHealthand Control DivisionEnvironment ie ntroll Emission Are the Controlled AIRS Rate emissions Emission Point Pollutant CAS# BIN (lb/yr) reportable? Rate(Ib/yr) Benzene 71432 A 350 Yes 18 004 Hexane 110543 C 4200 Yes 210 Benzene 71432 A 1400 Yes 70 n-Hexane 110543 C 2800 Yes 140 005 Toluene 108883 C 2100 Yes 105 Xylenes 1130207 C 700 No 35 Benzene 71432 A 2100 Yes 105 006 Hexane 110543 C 6600 Yes 330 Benzene 71432 A 10,914 Yes 546 Toluene 108883 C 10,914 Yes 546 Ethylbenzene 100414 C 5,412 Yes 271 007 Xylenes 1130207 C 5,412 Yes 271 n-Hexane 110543 fr. C 32,651 Yes 1,633 2,2,4-TMP 540841 C 5,412 Yes 271 Benzene 71432 A 610 Yes 610 Toluene 108883 C 610 No 610 008 Ethylbenzene 100414 C 161 No 161 Xylenes 1130207 C 161 No 161 n-Hexane 110543 C 2,688 Yes 2,688 5) The emission levels contained in this permit are based on the following emission factors: ii Point 004: I Emission Factors Emission Factors Uncontrolled Controlled CAS# Pollutant Ib/BBL lb/BBL Source Condensate Condensate Throughput Throughput VOC 0.2 0.01 WinSim and EPA Tanks WinSim and EPA 110543 n-Hexane 0.006 0.0003 Tanks 71432 Benzene 0.0005 0.00003 WinSim and EPA Tanks Note: The controlled emissions factors for point 004 are based on the flare control efficiency of 95%. Point 005: AIRS ID: 123/9BE5 Page 11 of 14 I) ob Depa e THeafth and EnvironmentDivisionPollution Control o n Factors—Controlled Uncontrolled CM Pollutant lb/1000 gal Source Lb/1000 gal Source loaded loaded VOC 6.15 AP-42 0.3075 AP-42 71432 Benzene 00476 DOC#EPA- 0.0024 DOC#EPA- 453/R-94-002a 453/R-94-002a 108883 Toluene 0.0714 DOC#EPA- 0.0036 DOC#EPA- 453/R-94-002a 453/R-94-002a 1330207 Xylenes 0.0238 DOC#EPA- 0.0012 DOC#EPA- 453/R-94-002a 453/R-94-002a 110543 n-hexane 0.0952 DOC#EPA 0.0048 DOC#EPA- 453/R-94-002a 453/R-94-002a 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'MIT S=0.6(Submerged loading:dedicated normal service) P(true vapor pressure)=6.9 psia M(vapor molecular weight)=62 Ib/Ib-mol T(temperature of liquid loaded)=520'R Point 006: Emission Factors Emission Factors Uncontrolled Controlled CM# Pollutant lb/BBL IbIBBL Source Condensate Condensate Throughput Throughput VOC 0.262 0.0131 PS Memo 09-02 110543 n-Hexane 0.022 0.0011 PS Memo 09-02 71432 Benzene 0.007 0.0004 PS Memo 09-02 Point 007: Weight Emission Emission CM# Pollutant Fraction of Factors Factors Source Gas(%) Uncontrolled Controlled NOx 0.068 0.068 AP-42 lb/MMBtu lb/MMBtu CO 0.37 AP-42 - 0.37 lb/MMBtu lb/MMBtu VOC 18 14900 745 Ib/mmscf Engineering Ib/mmscf Calculation 6.05 Engineering 71432 Benzene 0.10 121 lb/MMscf Ib/mmscf Calculation 6.05 Engineering 108883 Toluene 0.08 121lbIMMsd lb/mmscf Calculation 100414 Ethylbenzene 0.01 60 lb/MMscf 3lb/mmscf Engineering Calculation 1330207 Xylenes 0.03 60Ib/MMscf 3Ib/mmscf Engineering Calculation AIRS ID: 123/9BE5 Page 12 of 14 olor Depa e THealth and Environment ]) Pollution Control Division i n CAS# Pollutant Fraction of Factors Factors Source Gas (%) Uncontrolled Controlled 110543 n-hexane 0.63 362 lb/MMscf 18.1 Engineering lb/mmscf Calculation Note: The uncontrolled VOC and HAP emissions for this point were calculated using an average of 4 analyses of gas samplse collected from the SLW Ranch well well.The controlled VOC and HAP emissions factors for point 007 are based on the flare control efficiency of 95%. Point 008: Component Gas Service Heavy Oil Light Oil We Service l Connectors 2100 0 1100 200 Flanges 800 0 300 100 Open-ended Lines 0 0 0 0 Pump Seals 0 0 0 0 Valves 1400 0 500 105 Other' 150 0 50 40 VOC Content(wt. 0.2465 1 1 1 fraction) Benzene Content(wt. 0.002 0 0.006 0.006 fraction) Toluene Content(wt. 0.002 0 0.006 0.006 fraction) Ethylbenzene(wt. 0.001 0 0 0 fraction) Xylenes Content(wt. 0.001 0 0 0 fraction) n-hexane Content(wt. 0.006 0 0.0359 0.0359 fraction) `Other equipment type includes compressors, pressure relief valves, relief valves, diaphragms, drains, dump arms, hatches, instrument meters, polish rods and vents TOC Emission Factors(kg/hr-component): Component Gas Service Heavy Oil Light Oil ervi S Water/Oil Service Connectors 2.0E-04 7.5E-06 2.1E-04 1.1E-04 Flanges 3.9E-04 3.9E-07 1.1E-04 2.9E-06 Open-ended Lines 2.0E-03 1.4E-04 1.4E-03 2.5E-04 Pump Seals 2.4E-03 NA 1.3E-02 2.4E-05 Valves 4.5E-03 8.4E-06 2.5E-03 9.8E-05 Other 8.8E-03 3.2E-05 7.5E-03 1.4E-02 Source: EPA-453/R95-017 AIRS ID: 123/9BE5 Page 13 of 14 • olo Depa e f li Health and Environment it Pollution Control Division emissions limits in tDI a ed e TO Ion factors listed in the table above with representative component counts, multiplied by the VOC content from the most recent gas analysis. 6) In accordance with C.R.S. 25-7-114.1, each Air Pollutant Emission Notice (APEN) associated with this permit is valid fora 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 wires.Please refer to the most recent annual fee invoice to determine the APEN e:gtiration 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, n-hexane,total HAPS NANSR Synthetic Minor Source of: VOC MACT HH Area Source Requirements: Not Applicable 8) Full text of the The 40,Protection of Environment Electronic Code of Federal Regulations can be found at the website listed below http://ecfngooaccess.gov/ Part 60: Standards of Performance for New Stationary Sources NSPS 80.1-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) An Oil and Gas Industry Construction Permit Self-Certification Form is included with this permit packet. ' • Please use this form to complete the self-certification requirements as specified in the permit conditions. Further guidance on self-certification can be found on our website at: www.colorado.ciovicdphe/oilaascerm its AIRS ID: 123/9BE5 Page 14 of 14 Construction Permit Application Preliminary Analysis Summary Section 1 —Applicant Information Company Name: Noble Energy, Inc. Permit Number: 13WE2740 Source Location: SLW Ranch B01 Econode SENE Section 1,T5N, R64W,Weld County(non-attainment) Point 004: condensate tanks Point 005: truck loadout Equipment Description: Point 006: produced water tanks Point 007: Wellhead flare Point 008: Fugitives AIRS ID: 123-9BE5 Date: November 26, 2013 (fugitive APEN received 1/21/14) Review Engineer: Stephanie Chaousy, PE Control Engineer: Chris Laplante Section 2—Action Completed X CP1 Modification APEN Required/Permit Exempt Final Approval Transfer of Ownership APEN Exempt/Permit Exempt Section 3—Applicant Completeness Review Was the correct APEN submitted for this source type? Yes X No Is the APEN signed with an original signature? X Yes No Was the APEN filled out completely? X Yes No Did the applicant submit all required paperwork? X Yes No Did the applicant provide ample information to determine emission rates? X Yes No If you answered"no"to any of the above, when did you mail an See Section 14 Information Request letter to the source? September 5,2013. Fugitive APEN On what date was this application complete? received 1/2112014. Section 4—Source Description AIRS Point Equipment Description 004 Ten (10) above ground 500 bbl atmospheric condensate storage tanks. Emissions from these tanks are controlled by an enclosed flare. 005 Truck Condensate Loadout. 006 Two(2) 60 bbl and four(4) 500 bbl above ground atmospheric produced water storage tanks. Emissions from these tanks are controlled by an enclosed flare. 007 Separator controlled by a flare stack. Flare has a minimum combustion efficiency of 95%. The flare is not enclosed. 008 Fugitive VOC leak emissions. Is this a portable source? Yes X No Page 1 Is this location in a non-attainment area for any criteria X Yes No pollutant? If"yes",for what pollutant? PMK° CO X Ozone Is this location in an attainment maintenance area for Yes X No any criteria pollutant? If yes',for what pollutant? (Note:These pollutants are subject to minor source PMra CO Ozone RACT per Regulation 3, Part B,Section III.D.2) • Is this source located in the 8-hour ozone non- attainment region?(Note: If"yes"the provisions of X Yes No Regulation 7,Sections XII and XVII.C may apply) Point 005: Is this source located at an oil and gas X Yes No exploration site? Point 005: If yes, does this source load less than 10,000 gallons of crude oil per day on an annual average, splash fill less than 6750 bbl of condensate Yes X No (hydrocarbons that have an API gravity of 40 degrees or greater) per year or submerged fill less than 16,308 bbl of condensate per year? Point 005: Is this source located at a facility that is considered a major source of hazardous air pollutant Yes X No (HAP)emissions? Point 006: Will this equipment be operated in any NAAQS nonattainment area? X Yes No Point 005: Does this source load gasoline into transport vehicles? Yes X No Point 006: Are'flash"emissions anticipated from X Yes No . these tanks? Point 006: Is this tank located at an E&P site? X Yes No Point 006: Is this tank located at a non-E&P, midstream or downstream site? Yes X No Point 006: Is this source claiming exempt status for this source based on the fraction of oil in the stored X Yes No water(less than 1%by volume crude oil on an average annual basis)? Point 006: Are these produced water tanks located at a commercial facility that accepts oil production Yes X No wastewater for processing? Point 006:Are these produced water tanks subject to Colorado Oil and Gas Conservation Commission Yes X No (COGCC)805 Rule? Section 5—Emission Estimate Information AIRS Point Emission Factor Source 004 Source provided site-specific emission factors using WInSim and EPA Tanks. See Section 14 for calculations. AP-42: Chapter 5.2, Equation 1 L= 12.46*S•P*M!T 005 L=loading losses in lb per 1000 gallons loaded S=Saturation Factor P=true vapor pressure of liquid loaded[psis] M=molecular weight of vapors pbAb-mole] T=temperature of bulk liquid loaded[deg. R] 006 CDPHE Produced Water Storage Tank Emission Factors; CDPHE Memo 09-02 007 Site-specific using VOC weight fraction(Refer to Section 14 for calculations) Page 2 008 EPA-453/R-95-017, Table 2-4 Did the applicant provide actual process data for the emission inventory? Yes X No Basis for Potential to Emit(PTE) AIRS Point Process Consumption/Throughput/Production 004 700,000 BBL per year 005 700,000 BBL per year condensate loaded 006 300,000 BBL per year 007 90 MMSCF per year Equipment Type Gas Heavy Oil(or Light Oil (or Water/Oil Heavy Liquid) Light Liquid) Connectors 2100 - 1100 200 008 Flanges 800 - 300 100 Open-Ended Lines — — --- -- Pump Seals --- --- -- --- Valves 1400 --- 500 105 Other 150 --- 50 40 Basis for Actual Emissions Reported Durina this APEN Filing (Reported to Inventory) AIRS Point Process Consumption/Throughput/Production Data Year 004 700,000 BBL per year 2013 005 700,000 BBL per year condensate loaded 2013 006 300,000 BBL per year 2013 007 90 MMSCF per year 2013 Equipment Type Gas Heavy Oil Light Oil Water/Oil (or Heavy (or Light Liquid) Liquid) Connectors 2100 -- 1100 200 008 Flanges 800 --- 300 100 2013 Open-Ended -- --- --- --- Lines Pump Seals --- --- --- --- Valves 1400 --- 500 105 Other 150 --- 50 40 Basis for Permitted Emissions(Permit Limits AIRS Point Process Consumption/Throughput/Production 004 700,000 BBL per year(Operator is requesting to be permitted at PTE) 005 700,000 BBL per year condensate loaded 006 300,000 BBL per year 007 90 MMSCF per year Equipment Type Gas Heavy Oil(or Light Oil (or Water/Oil Heavy Liquid) Light Liquid) Connectors 2100 --- 1100 200 008 Flanges 800 --- 300 100 Open-Ended Lines --- --- --- --- Pump Seals -- --- -- — Valves 1400 - 500 105 Other 150 _ - 50 40 Does this facility have control devices? X Yes No Page 3 AIRS Point Process Control Device Description Granted%G 004 01 Enclosed flare 95 005 0o Enclosed flare 95 006 of Enclosed flare 95 007 01 Flare 95 Section 6—Emission Summary(tons per year) Point NO■ VOC CO Single HAP Total HAP 004 — 70 — 2.1 (Hexane) 2.3 005 — 90.3 — 1.4(Hexane) 3.5 PTE: 006 — 47.2 — 4.0(Hexane) 5.2 007 4.1 672 22.0 16.3(hexane) 35.4 008 — 43.8 — . 1.3(hexane) 2.1 004 — 70 — 2.1 (Hexane) 2.3 005 — 90.3 — 1.4(Hexane) 3.5 Uncontrolled point 006 — 39.3 — 3.3(Hexane) 4.4 source emission rate: 007 4.1 672 22.0 16.3(hexane) 35.4 008 — 43.8 — 1.3 (hexane) 2.1 004 — 3.5 — 0.11 (Hexane) 0.11 005 -- 4.5 - 0.07(Hexane) 0.18 Controlled point 006 — 2.0 - 0.17(Hexane) 0.2 source emission rate: 007 4.1 33.6 22.0 0.8(Hexane) 1.8 008" — 43.8 — 1.3(hexane) 2.1 Total APEN Reported 4.1 43.6 22.0 1.2 (Hexane) 2.6 emissions: "Fugitives not included in total facility emissions Section 7—Non-Criteria I Hazardous Air Pollutants Uncontrolled An el. Controlled Emission Pollutant CAS# BIN Emission Rata n.Wem (Mien nn.melw Rats(Wyr) Point 004 Benzene 71432 A 350 Yes 18 n-Hexane 110543 C 4200 Yes 210 Point 005 Benzene - 71432 A 1400 Yes 70 n-Hexane 110543 C 2800 Yes 140 Toluene 108883 C 2100 Yes 105 Xylenes 1130207 C 700 No 35 Point 006 Benzene 71432 A 2100 Yes 105 Page 4 n-Hexane 110543 C 6600 Yes 330 Point 007 Benzene 71432 A 10,914 Yes 546 Toluene 108883 C 10,914 Yes 546 Ethylbenzene 100414 C 5,412 Yes 271 Xylenes 1130207 C 5,412 Yes 271 n-Hexane 110543 C 32,651 Yes 1,633 2,2,4-TMP 540841 C 5,412 Yes 271 Point 008 Benzene 71432 A 610 Yes 610 Toluene 108883 C 610 No 610 Ethylbenzene 100414 C 161 No 161 Xylenes 1130207 C 161 No 161 n-Hexane 110543 C 2,688 Yes 2,688 Note: Regulation 3, Part A, Section II.B.3.b APEN emission reporting requirements for non-criteria air pollutants are based on potential emissions without credit for reductions achieved by control devices used by the operator. Section 8—Testing Requirements Will testing be required to show compliance with any emission rate or regulatory X Yes No standard? If"yes", complete the information listed below AIRS Point Process Pollutant Regulatory Basis Test Method VOC, Liquids Analyses 004 01 HAPS PS Memo 05-01 according to PS Memo 05-01 004 01 Opacity State Requirement EPA Method 22 007 01 VOC, State Requirement Extended gas HAPS analysis 007 01 VOC, Regulation No. 1, Section II.A.5 EPA Method 9 HAPS Section 9—Source Classification Is this a new previously un-permitted source? X Yes No What is this facility classification? True X Synthetic Major Minor Minor Classification relates to what programs? X Title V PSD X NA NSR MACT Is this a modification to an existing permit? Yes X No If"yes"what kind of modification? Minor Synthetic Major Minor Section 10—Public Comment Does this permit require public comment per CAQCC Regulation 3? X Yes No If"yes",for which pollutants?Why? For Reg. 3, Part B, III.C.1.a(emissions increase > 25/50 tpy)? X Yes No Page 5 I For Reg. 3, Part B, III.C.1.c.ii (subject to MACT)? Yes X No For Reg. 3, Part B, III.C.1.d(synthetic minor emission limits)? X Yes No Section 11 —Modeling Is modeling required to demonstrate compliance with National Ambient Yes X No Air Quality Standards(WAGS)? If"yes',for which pollutants?Why? AIRS Point Section 12— - ulato Review .74.1""` a „p,. "; ..„„ �wM. wrnww=r , . *rwHw 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 157second intervals for six minutes. The approved reference test method for visible emissions measurement is EPA Method 9(40 CFR, Part 60,Appendix A(July, 004-007 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. Raaulafion 2 f9doC t" 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 004-007 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. Part A-APEN Requirements Criteria Pollutants: For criteria pollutants,/Ur Pollutant Emission Notices are required for: 004-007 each individual emission point in a non-attainment area with uncontrolled actual emissions of one ton per year or more of any individual criteria pollutant(pollutants are not summed) for which the area is non-attainment. (Applicant is required to file an APEN since emissions exceed 1 ton per year VOC) Part B—Construction Permit Exemptions 004-007 Applicant is required to obtain a permit since uncontrolled VOC emissions from this facility are greater than the 2.0 TPY threshold(Reg.3, Part B,Section Male) Part B,III.D.2-RACT requirements for new or modified minor sources This section of Regulation 3 requires RACT for new or modified minor sources located in nonattainment or attainment/maintenance areas. This source is/is not located in the 8-hour ozone nonattainment area, but not the 1-hour ozone area. 005 The date of interest for determining whether the source is new or modified is therefore November 20, 2007(the date of the 8-hour ozone NA area designation). Since the tank battery from which loadout is occurring will be in service after the date above,this source is considered"new or modified." Operator is using submerged fill (0.6 saturation factor), therefore, RACT requirements are satisfied. Part B,III.D.2-RACT requirements for new or modified minor sources This section of Regulation 3 requires RACT for new or modified minor sources located in nonattainment or attainment/maintenance areas. This source is/is not located in the 8-hour ozone nonattainment area. 008 The date of interest for determining whether the source is new or modified is therefore November 20, 2007(the date of the 8-hour ozone NA area designation). Since the fugitives will be in service after the date above, this source is considered"new or modified? Operator has a8 reed on the Division's standard conditions. Page 6 NSPS Kb: for storage vessels greater than 19,800 gallons after 7/23/84. Is this source greater than 19,800 gallons(471 bbl)?Yes 004 Is this source subject to NSPS Kb? No WHY? The storage tanks at the facility are all prior to custody transfer and are therefore not subject to this subpart. 005 No applicable subpart. This facility is not a bulk gasoline terminal. 006, 007 None NSPS OOOO: Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution. For fugitive emissions at natural gas processing plants subject to NSPS OOOO. This subpart establishes emission standards and compliance schedules for the control of volatile organic compounds(VOC)and 008 sulfur dioxide(SO2) emissions from affected facilities that commence construction, modification or reconstruction after August 23, 2011. Is this source at a"natural gas processing plant?" No Is this source subject to NSPS OOOO? No WHY? Source is not located at a"natural gas processing plant" but a production field facility, therefore, not meeting the requirements of this subpart. Regulation 7—Volatile Organic Compgunds XII. VOLATILE ORGANIC COMPOUND EMISSIONS FROM OIL AND GAS OPERATIONS (Applicant is subject to the emission control requirements for condensate tanks 004 since it is located in a non-attainment area.) XVII.C STATEWIDE CONTROLS FOR OIL AND GAS OPERATIONS... (Applicant is currently subject to this since actual uncontrolled emissions are greater than 20 tpy of VOC.) No sections apply. Per Regulation 7, Section VI.C, a terminal is defined as a petroleum liquid storage and distribution facility that has a daily average throughput of more than 005 76,000 liters of gasoline(20,000 gallons), which is loaded directly into transport vehicles. This facility is neither a terminal, nor a bulk plant per definitions in Reg 7, Section VI.C. 006, 007 None Section XII.G: If facility is a natural gas processing plant located in non-attainment area, then subject to Section XII.G. 008 This facility is not a natural gas processing plant,therefore, not subject to this subpart. Regulation 8—Hazardous Air Pollutants MACT EEEE: Organic Liquids Distribution 004, 005 This source is not subject to MACT EEEE because it is not located at a major source of HAP. 004 MACT HH This source is not subject to MACT HH because it is not located at a major source of HAP. 006,007 None MACT HH: If facility is MAJOR source for HAP at a natural gas processing plant ONLY(summation of HAPS of dehydrators and fugitives),then fugitive emissions are subject to MACT HH. 008 Is this facility considered MAJOR for HAPS? No Is this source subject to MACT HH? No WHY? This facility is considered area source for MACT HH; therefore, only TEG dehydrators at this facility would be subject(there are no dehys onsite). Section 13—Aerometric Information Retrieval System Coding Information Process Emission Pollutant/ Fugitive Control Point Process Description Factor CAS# (Y/N) Emission Factor Source (%) 4.7524 Engineering Calculation lb/1000 gal VOC No 95 E&P Condensate throughput (WinSim and EPA tanks) 004 01 Storage Tanks 0.0112 lb/1000 gal Benzene/ No Engineering Calculation 95 throughput 71432 (WinSim and EPA tanks) Page 7 3 n-Hexane Engineering Calculation lb/1000 95 throughput No/ 110543 (WlnSim and EPA tanks) SCC 40400311 —Fixed Roof Tank,Condensate,working+breathing+flashing losses 6.15 VOC No AP-42 95 lb/1,000 gal 0.0476 Benzene/ Engineering lb/1,000 gal 71432 No Calculation 95 01 Truck Condensate 700,000 0.0714 Toluene No Engineering 95 005 Loadout BBL/yr lb/1,003gal - .- Calculation 0.0238 xylenes No Engineering 95 lb/1,003 gal Calculation 0.0952 n-hexane/ Engineering lb/1,000 gal 110543 No Calculation 95, SCC 40600132: Crude Oil: Submerged Loading (Normal Service) 6.2381 CDPHE PS lb/1000 gal VOC No Memo 09-02 95 throughput Produced Water Storage 0.1887 CDPHE PS • 01 Tanks Inn=gel Benzene No Memo 09-02 95 006 throughput 0.5238 CDPHE PS lb/1000 gal n-Hexane No Memo 09-02 95 throughput SCC 40400315—Fixed Roof Tank, Produced Water,working+breathing+flashing losses 14900 VOC No Engineering 95 Ib/MMscf Calculation 0.088 AP-42, lb/MMBtu NOx No Table 13.5-1 NA 0.37 CO No AP-42, NA lb/MMBtu Table 13.5-1 121 lb/MMscf Benzene No Engineering 95 Calculation 01 Flare 121Ib/MMscf Toluene No Engineering 95 007 Calculation 60lb/MMscf Ethlybenzene No Engineering 95 , Calculation 60lb/MMscf Xylenes No Engineering 95 Calculation 382lb/MMscf n-hexane No Engineering 95 Calculation 60 lb/MMscf 2,2,4-Tn No Engineering 95 Calculation SCC 31000205-Flares I NA Fugitive VOC Leak EPA-453/R-95-017, 008 01 Emissions VOC Yes Table 2-4 SCC 31000220: All Equip. Leak Fugitives(Valves,flanges, connections,seals,drains) Page 8 Section 14—Miscellaneous Application Notes AIRS Point 004 Condensate Storage Tanks A permit will be issued because the uncontrolled VOC emissions are greater than 5 TPY(permit threshold). Source provided site-specific emission factors using EPA Tanks(working and breathing) and WimSim(flashing). Emission factors were generated from both models and then added together. The liquid analysis used in WimSim had a sample date of July 24, 2013(less than 1 year of application submittal). A new analysis will not be warranted. VOC: WinSim=0 EPA Tanks(modeled with just 1 tank(70,000 bbl))= 13972.79 lb/yr/70000 bbl/yr=0.1996 lb/bbl VOC E.F. =0.1996 lb/bbl*1000/42=4.7524 lb/1000 gal Benzene: WinSim=0 EPA Tanks(modeled with just 1 tank(70000 bbl))=32.90 lb/yr/70000 bbl/yr=0.00047 lb/bbl VOC E.F. =0.00047 lb/bbl*1000/42=0.0112 lb/1000 gal n-hexane: WinSim =0 EPA Tanks(modeled with just 1 tank(70000 bbl))=393.2 lb/yr/70000 bbl/yr=0.0056 lb/bbl VOC E.F. =0.0056 Ib/bbl•1000/42=0.1333 lb/1000 gal AIRS Point 005 Truck Condensate Loadout Units Basis S 0.6 Submerged loading: dedicated normal service P 6.9 Psia Based on EPA TANKs run M 62 Lb/lb-mole Based on EPA TANKs run T 520 Deg R Based on EPA TANKs run L 6.15 Lb/10^3 gal This value is used to calculate annual emissions 0.258 Lb/bbl AP-42: Chapter 5.2 Equation 1 L= 12.46*S*P*M/T L=loading losses in lb per 1000 gallons loaded S= Saturation Factor P =true vapor pressure of liquid loaded [psia] M = molecular weight of vapors [lb/lb-mole] T= temperature of bulk liquid loaded [deg. R] L 6.151b/10^3 gal 2.58E-0 t lb/bbl Annual requested Throughput 29400000gal/yr Annual requested VOC emissions 1808231b/yr 90.41 tpy Operator used Table 3-2 of DOC#EPA-453/R-94-002a to calculate HAP emissions: Benzene= 1400 lb/yr/700000 = 0.002 lb/bbl• 1000/42 = 0,0476 lb/1000 gal Toluene= 2100 lb/yr/700000 = 0.003 lb/bbl* 1000/42 = 0.0714 lb/1000 gal Xylenes= 700 lb/yr/700000= 0.001 lb/bbl* 1000/42 = 0.0238 lb/1000 gal n-hexane= 2800 lb/yr/700000 = 0.004 lb/bbl* 1000/42 = 0.0952 lb/1000 gal Page 9 AIRS Point 006 Produced Water Storage Tanks A permit will be issued because the uncontrolled VOC emissions are greater than 1 TPY(APEN threshold)and total facility greater than 2 TPY(permit threshold). I emailed the operator on 11/26/13. Her responses are in italics received 12/3/13: 1. It looks like site-specific emission factors were used for the produced water tank, however, no calculations were supplied with the APEN. I believe Noble typically uses the State derived factors for produced water tanks. If so, I can just redline. As for the water, we had requested to use the oil factor for the water factor since the Site Specific oil factor was lower than the state derived water factors. The oil factor of(12 would still be a conservative factor for the water emissions. • Replied to Noble on 12/5/13: Did you make this request and got it approved with Chris Laplante or someone else in the Division or making this request right now with the application? There really isn't a big difference between using the state emission factors and the oil factor for VOC, but I an mostly looking at the HAP emissions. lam not sure where to look in the application to even confirm the oil factor. Could you please provide some guidance? I think I might want to go State emission factors if I am not feeling comfortable with the oil factors. Response on 1/7/14: We did not get this request approved, but assumed that using the oil factor would be a logical choice since the water factor would make our water emissions higher than our on factor. You had called back and said you thought this was ok but that you needed to think on it further. • Replied to Noble on 1/8/14: I just don't know if I feel comfortable using the oil factor for the produced water factors. I know that the state emission factors are conservative, but I don't think switching to the state emission factors will cause any changes to the facility itself(i.e. synthetic minor, Mc)so if it is okay with Noble, I would like to permit for the initial permit at the state factors. jf Noble needs to modify this permit and has more data to support this emission factor change,then the Division will happily review it Response on 1/8/14: Not a problem, can you send me a copy of the redline just for my records. State-Developed Emission factors in lb/1000 gal are: Produced Water Tank Default County Emission Factors(lb/1000 gal) VOC Benzene n-Hexane Garfield, Mesa, Rio Blanco and Moffat 4.2381 0.0952 0.2381 Remainder of Colorado 6.2381 0.1667 0.5238 Page 10 AIRS Point 007 Flare During operator review, the operator decreased the throughput from 180 mmscf/yr to 90 mmscf/yr. This cut all the emissions in half. I made the changes to the permit and PA and history file accordingly. Emission factors for HAPS are: Benzene= (10914 Ib/yr)/90 mmscf/yr= 121 lb/mmscf(APEN shows 0.115 lb/mcf; could be the difference of a rounding issue) Toluene= (10914 Ib/yr)/90 mmscf/yr= 121 lb/mmscf(APEN shows 0.115 lb/mcf; could be the difference of a rounding issue) Ethylbenzene= (5412 Ib/yr)/90 mmscf/yr= 60 lb/mmscf(APEN shows 0.057 Ib/md; could be the difference of a rounding issue) Xylenes= (5412 Ib/yr)/90 mmscf/yr=60 lb/mmscf(APEN shows 0.057 lb/mcf; could be the difference of a rounding issue) n-hexane= (32651 Ib/yr)/90 mmsd/yr= 362 lb/mmscf(APEN shows 0.344 Ib/md; could be the difference of a rounding issue) 2,2,4-Tri = (5412 Ib/yr)/90 mmscf/yr=60 lb/mmscf(APEN shows 0.057 lb/mcf; could be the difference of a rounding issue) Operator provided an extended gas analysis and emissions were calculated using EPA Emission .Inventory Improvement Program Publication, Volume II, Chapter 10-Displacement equation (10.4-3) where: 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 Emissions generated from the flare are: Uncontrolled Controlled Total (Ib/yr) Wt°A from similar and Total (Ib/yr) surrounding facilities NOx 8.1 TPY 8.1 TPY VOC 1341 TPY 67.1 TPY -- CO 43.8 TPY 43.8 TPY -- Benzene 21780 1089 0.20 Toluene 21780 1089 0.20 Ethylbenzene 10800 540 0.10 Xylenes 10800 540 0.10 • n-hexane 65160 3258 0.60 224-TMP 10800 540 0.10 An average of 5 gas analyses was provided in the application with an unknown sampling date. An updated extended gas analysis will be required because the tests included in the application were not extended gas analyses. The HAP composition was assumed conservatively high using values from surrounding facilities. AIRS Point 008 Fugitive VOC Leak Emissions A permit will be issued because the uncontrolled VOC emissions are greater than 2 (permit threshold). This source was not included in the original application but was added when the operator reviewed the draft permit. I updated the PA, permit and history file accordingly. Page 11 Air Pollutant Emission Notice (APEN)—and—Application for Construction Permit OIL AND GAS EXPLORATION AND PRODUCTION CONDENSATE STORAGE TANK BATTERY Current Status(Check all that a ply) Reason for APEN Submittal(Check all that apply) AIRS ID#t: 123- 9 LE 5- O oy ❑ APEN update only° ® New or previously unreported battery ❑ Modification to existing sources 0 Previously grandfathered battery2 I3 WE-L�,y 1, 0 Registration for coverage under general permit no.GPO1 and el Synthetic minor facility cancellation request for individual permit6: ® Located in the 8-hr Ozone Control Areas ® Application for or Modification of an individual permit El Registered under general permit no.GPOI 0 Administrative permit amendment ❑ Permitted under individual permit: ❑ Other: For individual permit applications,check if you wants: O A copy of the preliminary analysis conducted by the Division ❑To review a draft of the permit prior to issuance Company Names: Noble Energy,Inc OGCC Operator#: 100322 Mailing Address10: 1625 Broadway Suite 2200 tweiner@nobleenergyinc City: Denver State: CO Zip: 80202 E-mail: .com Contact Name: Taryn Weiner Phone: (303)228-4362 Fax: (303)228-4286 Tank Battery Name": SLW RANCH B01 ECONODE Number of tanks: 10 Location"(QQ Sec.Twp.Range.): SENE SECT T5N R64W County: Weld Total tank capacity[bbl]: 5000 Calendar year for which"Actual"data appliests: 2013 Year(s)tank(s)were placed in service14: 2013 Control Descriptions: FLARE Control Efficiency's: 95% Condensate Throughput"[bbl/year] Requested": 700,000 Maximum for PTE calculation's: 700,000 Actual20: While Controls OperationalZ' Other equipment at facility22: Comments: Estimated emissions at throughputs listed above. Use NM for requested throughput/emission values unless requesting an individual permit ❑Check if the Division is to calculate emissions. ®Check if site-specific emission factors provided to calculate emissions23. Emission Factor Battery Requested Emissions's Actual Emissions20 Pollutant24 [lb/bbl] PTE2s Uncontrolled26 Controlled27 Uncontrolled26 Controlled27 VOC[tons/year] 0.2 1 70.0 70.0 3.5 NOx[tons/year] CO[tons/year] Benzene[lbs/year] 0.0005 J 350.0 350.0 17.5 n-Hexane[lbs/year] 0.006 J 4,200.00 4,200.00 210.0 Wells serviced by this tank or tank battery2s API#: 05-123-36259 Name: SLW RANCH B01-63-1-HN ®Newly Reported Well API#: 05-123-36319 Name: SLW RANCH B01-64-1-HN ®Newly Reported Well API#: 05-123-36260 Name: SLW RANCH B01-62-1-HN ®Newly Reported Well API#: 05-123-36318 Name: SLW RANCH B01-66-1-HN ®Newly Reported Well API#: 05-123-36321 Name SLW RANCH B01-67-1-FIN ®Newly Reported Well API#: 05-123-36320 Name: SLW RANCH B01-68-1-HN ®Newly Reported Well API#: 05-123-36322 Name: SLW RANCH STATE B01-69-1-HN ®Newly Reported Well The signature below indicates that I have knowledge of the facts herein set forth and that the same are true,accurate,and complete to the best of my knowledge and belief. If this is a registration for coverage under general permit GP 1,I further certify that this source is and will be operated in fu compliance with each condition of general pennit GPI t l/tr.'', w aingA August 30,2013 Signature dt Legally Authorized Person(not a vendor or consultant) Date , Taryn Weiner Environmental Engineer Type.or Print Name of Person Signing Above Official Title Submit this form,along with$152.90 for each Colorado Department of Public Health and Environment For information call: filing of up to 5 tank battery APENS. Include Air Pollution Control Division,APCD-SS-B1 (303)692-3150 $250 General Permit fee for each new GP 4300 Cherry Creek Drive South fj �istration to: Denver,CO 80246-1530 297602 FORM APCD-205 eats 09JoS/(3 0 o co > g O a •F o 0 0 0 0 •O -' O c VI lc'• — Z p X° .v d a - y r t U y ' . 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