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Home My WebLink AboutDAQ-2024-007429 DAQE-AN101210292-24 {{$d1 }} Joseph Martone Hill Air Force Base 75 CEG/CEIEA 7290 Weiner Street, Building 383 Hill Air Force Base, UT 84056-5136 erik.dettenmaier.1@us.af.mil Dear Mr. Martone: Re: Approval Order: Modification to the Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Project Number: N101210292 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on September 22, 2023. Hill Air Force Base must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is Tad Anderson, who can be contacted at (385) 306-6515 or tdanderson@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:TA:jg cc: Davis County Health Department DJ Law, EPA Region 8 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 536-4414 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director March 19, 2024 STATE OF UTAH Department of Environmental Quality Division of Air Quality {{#s=Sig_es_:signer1:signature}} {{#d1=date1_es_:signer1:date:format(date, "mmmm d, yyyy")}} {{#d2=date1_es_:signer1:date:format(date, "mmmm d, yyyy"):align(center)}} APPROVAL ORDER DAQE-AN101210292-24 Modification to the Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Prepared By Tad Anderson, Engineer (385) 306-6515 tdanderson@utah.gov Issued to Hill Air Force Base- Main Base Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director March 19, 2024 Division of Air Quality TABLE OF CONTENTS TITLE/SIGNATURE PAGE ....................................................................................................... 1 GENERAL INFORMATION ...................................................................................................... 3 CONTACT/LOCATION INFORMATION ............................................................................... 3 SOURCE INFORMATION ........................................................................................................ 3 General Description ................................................................................................................ 3 NSR Classification .................................................................................................................. 3 Source Classification .............................................................................................................. 3 Applicable Federal Standards ................................................................................................. 3 Project Description.................................................................................................................. 3 SUMMARY OF EMISSIONS .................................................................................................... 4 SECTION I: GENERAL PROVISIONS .................................................................................... 4 SECTION II: PERMITTED EQUIPMENT .............................................................................. 5 SECTION II: SPECIAL PROVISIONS ..................................................................................... 6 PERMIT HISTORY ..................................................................................................................... 8 ACRONYMS ................................................................................................................................. 9 DAQE-AN101210292-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Hill Air Force Base Hill Air Force Base - Main Base Mailing Address Physical Address 75 CEG/CEIEA 7290 Weiner Street, Building 383 Hill Air Force Base, UT 84056-5136 75 CEG/CEIEA 7290 Weiner Street, Building 383 Hill Air Force Base, UT 84056-5136 Source Contact UTM Coordinates Name: Erik Dettenmaier 416,588 m Easting Phone: (801) 777-0888 4,553,000 m Northing Email: erik.dettenmaier.1@us.af.mil Datum NAD27 UTM Zone 12 SIC code 9711 (National Security) SOURCE INFORMATION General Description Hill Air Force Base (Hill AFB) is a major U.S. Air Force base located in northern Utah, just south of the city of Ogden. Hill AFB is the home of the Air Force Materiel Command's Ogden Air Logistics Complex, which is the worldwide manager for a wide range of aircraft, engines, missiles, software, avionics, and accessory components. NSR Classification Minor Modification at Major Source Source Classification Located in Davis County Airs Source Size: A Applicable Federal Standards None Project Description Hill AFB has requested a modification to the Fuel Storage Tank AO DAQE-AN101210288-23 to replace six (6) diesel fuel underground storage tanks (AQUIS IDs 38302, 38303, 38304, 38305, 38306, and 38307) with three (3) new above-ground 40,000 gallons (each) storage tanks (AQUIS IDs 45453, 45454, and 45455). The additional emissions from above-ground fixed-roof tanks are a result of evaporative DAQE-AN101210292-24 Page 4 losses during storage (breathing/standing losses) and evaporative losses during filling and emptying operations (working losses). The existing six (6) tanks were underground tanks, which do not have additional evaporative losses. The diesel throughput remains the same. Process Description Hill AFB is required to store and use fuel (diesel, gasoline, and jet fuel) throughout the Main Base and Little Mountain. Fuel movement at Hill AFB is complex due to Air Force instructions directing the movement of fuel. Air Force readiness requirements mandate monthly movement/turnovers for jet A fuel storage tanks. Locations and details of fuel movement have been omitted from the permit due to the risk to Base security and national security. SUMMARY OF EMISSIONS The emissions listed below are an estimate of the total potential emissions from the source. Some rounding of emissions is possible. Criteria Pollutant Change (TPY) Total (TPY) Volatile Organic Compounds 0.02 29.62 Volatile Organic Compounds - Fugitive 0 4.03 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) 2,2,4-Trimethylpentane (CAS #540841) 0 62 Benzene (Including Benzene From Gasoline) (CAS #71432) 1 532 Cumene (CAS #98828) 0 67 Ethyl Benzene (CAS #100414) 1 182 Generic HAPs (CAS #GHAPS) 18 878 Hexane (CAS #110543) 0 32 Toluene (CAS #108883) 5 1022 Xylenes (Isomers And Mixture) (CAS #1330207) 13 688 Change (TPY) Total (TPY) Total HAPs 0.01 1.73 SECTION I: GENERAL PROVISIONS I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions refer to those rules. [R307-101] I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401] I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1] DAQE-AN101210292-24 Page 5 I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Main Base Fuel Storage Tanks II.A.2 Diesel Fuel Storage Tanks Above Ground (NEW) AQUIS: 34586 Capacity: 80,000 gal AQUIS: 34587 Capacity: 66,300 gal AQUIS: 34581 Capacity: 30,000 gal AQUIS: 38052 Capacity: 30,000 gal AQUIS: 44684 Capacity: 30,000 gal AQUIS: 38053 Capacity: 30,000 gal AQUIS: 45428 Capacity: 30,000 gal AQUIS: 45453 Capacity: 40,000 gal (NEW) AQUIS: 45454 Capacity: 40,000 gal (NEW) AQUIS: 45455 Capacity: 40,000 gal (NEW) II.A.3 Diesel Fuel Storage Tanks Underground AQUIS: 38009 Capacity: 25,000 gal AQUIS: 38179 Capacity: 25,000 gal AQUIS: 38180 Capacity: 25,000 gal AQUIS: 38181 Capacity: 25,000 gal DAQE-AN101210292-24 Page 6 II.A.4 Gasoline Fuel Storage Tanks Above Ground AQUIS: 34582 Capacity: 35,000 gal AQUIS: 34658 Capacity: 35,000 gal AQUIS: 34659 Capacity: 35,000 gal II.A.5 Jet Fuel Storage Tanks Above Ground AQUIS: 3630 Capacity: 2,320,209 gal AQUIS: 3631 Capacity: 1,070,764 gal AQUIS: 3634 Capacity: 2,310,000 gal AQUIS: 3629 Capacity: 550,400 gal AQUIS: 39008 Capacity: 420,000 gal AQUIS: 39009 Capacity: 420,000 gal AQUIS: 3628 Capacity: 366,063 gal AQUIS: 38535 Capacity: 275,000 gal AQUIS: 3618A Capacity: 25,000 gal AQUIS: 3618B Capacity: 25,000 gal AQUIS: 3619A Capacity: 25,000 gal AQUIS: 3619B Capacity: 25,000 gal II.A.6 Jet Fuel Storage Tanks Underground AQUIS: 3706 Capacity: 25,000 gal AQUIS: 3707 Capacity: 25,000 gal II.A.7 Flex Fuel Storage Tanks Fuel Storage Tanks with a capacity greater than or equal to 500 but less than 19,812 gallons II.A.8 Small Fuel Storage Tanks Fuel Storage Tanks with a capacity less than 500 gallons II.A.9 Fuel Dispensing and Loading Equipment Associated fuel dispensing and loading equipment site-wide SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a The combined fuel received by above ground and underground fuel storage tanks with a capacity greater than or equal to 19,812 gallons, shall not exceed the following rolling 12-month limits: A. 7,500,000 gallons diesel fuel. B. 642,000 gallons gasoline fuel. C. 102,000,000 gallons of jet fuel*. *Jet fuel consist of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8] II.B.1.a.1 By the 30th day of each month (or the 28th day for February), a rolling 12-month total shall be determined using records from the previous 12-months. [R307-401-8] DAQE-AN101210292-24 Page 7 II.B.1.a.2 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tanker truck and pipeline delivery logs. These records may be kept in electronic form. [R307-401-8] II.B.1.b For above ground and underground fuel storage tanks with a capacity less than 19,812 gallons and greater than or equal to 500 gallons, the total combined capacity of in-service fuel storage tanks, by fuel type, at Hill AFB shall not exceed the following limits at any time: A. 770,000 gallons combined capacity for diesel tanks. B. 123,000 gallons combined capacity for gasoline tanks. C. 600,000 gallons combined capacity for jet fuel* tanks. *Jet fuel consists of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8] II.B.1.b.1 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tank capacity and fuel contained. These records may be kept in electronic form at Hill AFB. [R307-401-8] II.B.1.b.2 By the 30th day of each month (or the 28th day for February), the total combined tank capacity (by fuel type) shall be determined. [R307-401-8] II.B.1.c Hill AFB is allowed to add or modify any above ground or underground fuel storage tank, provided that the fuel storage tank capacity is less than 19,812 gallons and the capacity limitations in Condition II.B.1.b are not exceeded. The new or modified fuel storage tanks will be horizontal, fixed roof tanks or better with submerged fill. [R307-401-8] DAQE-AN101210292-24 Page 8 II.B.1.c.1 Hill AFB shall provide a notification for the addition or modification of any above-ground or underground fuel storage tank with the tank capacity is greater than or equal to 500 gallons and less than 19,812 gallons. The notification shall meet the following: A. Notification shall be submitted to UDAQ seven (7) days prior to installation. Relocation, replacement, or removal of fuel storage tanks with a capacity less than 19,812 gallons do not trigger a modification and do not require prior notifications. B. Notification shall include the following information on the new storage tank: fuel storage tank capacity, fuel type, tank type, and updated total combined capacity of fuel storage tanks. C. Hill AFB must demonstrate that the proposed addition does not cause an increase in the currently established base-wide fuel storage tank capacity limits. This demonstration shall include fuel storage tanks list with AQUIS, fuel type, fuel tank capacity, and status of equipment. D. UDAQ may request Hill AFB to conduct a new BACT analysis on fuel storage tanks to address new fuel storage tank control technology. UDAQ may then reissue this AO to incorporate the new BACT for any future changes under this condition. E. Hill AFB shall generate a list of all fuel storage tanks with a capacity greater than or equal to 500 gallons and less than 19,812 gallons that are subject to this condition within three (3) working days upon request from a representative of the Director. This fuel storage tank list shall include AQUIS, fuel type, fuel tank capacity and status of equipment. Hill AFB shall maintain records that demonstrate compliance with this condition, including, but not limited to, records of the required notifications. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN101210288-23 dated November 2, 2023 Is Derived From NOI dated September 22, 2023 DAQE-AN101210292-24 Page 9 ACRONYMS The following lists commonly used acronyms and associated translations as they apply to this document: 40 CFR Title 40 of the Code of Federal Regulations AO Approval Order BACT Best Available Control Technology CAA Clean Air Act CAAA Clean Air Act Amendments CDS Classification Data System (used by Environmental Protection Agency to classify sources by size/type) CEM Continuous emissions monitor CEMS Continuous emissions monitoring system CFR Code of Federal Regulations CMS Continuous monitoring system CO Carbon monoxide CO2 Carbon Dioxide CO2e Carbon Dioxide Equivalent - Title 40 of the Code of Federal Regulations Part 98, Subpart A, Table A-1 COM Continuous opacity monitor DAQ/UDAQ Division of Air Quality DAQE This is a document tracking code for internal Division of Air Quality use EPA Environmental Protection Agency FDCP Fugitive dust control plan GHG Greenhouse Gas(es) - Title 40 of the Code of Federal Regulations 52.21 (b)(49)(i) GWP Global Warming Potential - Title 40 of the Code of Federal Regulations Part 86.1818- 12(a) HAP or HAPs Hazardous air pollutant(s) ITA Intent to Approve LB/YR Pounds per year MACT Maximum Achievable Control Technology MMBTU Million British Thermal Units NAA Nonattainment Area NAAQS National Ambient Air Quality Standards NESHAP National Emission Standards for Hazardous Air Pollutants NOI Notice of Intent NOx Oxides of nitrogen NSPS New Source Performance Standard NSR New Source Review PM10 Particulate matter less than 10 microns in size PM2.5 Particulate matter less than 2.5 microns in size PSD Prevention of Significant Deterioration PTE Potential to Emit R307 Rules Series 307 R307-401 Rules Series 307 - Section 401 SO2 Sulfur dioxide Title IV Title IV of the Clean Air Act Title V Title V of the Clean Air Act TPY Tons per year UAC Utah Administrative Code VOC Volatile organic compounds DAQE-IN101210292-24 February 5, 2024 Amanda Burton Hill Air Force Base 75 CEG/CEIEA 7290 Weiner Street, Bldg 383 Hill Air Force Base, UT 84056-5136 erik.dettenmaier.1@us.af.mil Dear Ms. Burton: Re: Intent to Approve: Modification to Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Project Number: N101210292 The attached document is the Intent to Approve (ITA) for the above-referenced project. The ITA is subject to public review. Any comments received shall be considered before an Approval Order (AO) is issued. The Division of Air Quality is authorized to charge a fee for reimbursement of the actual costs incurred in the issuance of an AO. An invoice will follow upon issuance of the final AO. Future correspondence on this ITA should include the engineer's name, Tad Anderson, as well as the DAQE number as shown on the upper right-hand corner of this letter. Tad Anderson, can be reached at (385) 306-6515 or tdanderson@utah.gov, if you have any questions. Sincerely, {{$s }} Jon L. Black, Manager New Source Review Section JLB:TA:jg cc: Davis County Health Department DJ Law, EPA Region 8 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 536-4414 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director * ) ' & — ) B @ v A ? A C A A w C @ ˜ STATE OF UTAH Department of Environmental Quality Division of Air Quality INTENT TO APPROVE DAQE-IN101210292-24 Modification to Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Prepared By Tad Anderson, Engineer (385) 306-6515 tdanderson@utah.gov Issued to Hill Air Force Base - Main Base Issued On February 5, 2024 {{$s }} New Source Review Section Manager Jon L. Black {{#s=Sig_es_:signer1:signature}} * ) ' & — ) B @ v A ? A C A A w C @ ˜ TABLE OF CONTENTS TITLE/SIGNATURE PAGE ....................................................................................................... 1 GENERAL INFORMATION ...................................................................................................... 3 CONTACT/LOCATION INFORMATION ........................................................................... 3 SOURCE INFORMATION ..................................................................................................... 3 General Description ................................................................................................................ 3 NSR Classification .................................................................................................................. 3 Source Classification .............................................................................................................. 3 Applicable Federal Standards ................................................................................................. 3 Project Description.................................................................................................................. 3 SUMMARY OF EMISSIONS ................................................................................................. 4 PUBLIC NOTICE STATEMENT............................................................................................... 4 SECTION I: GENERAL PROVISIONS .................................................................................... 5 SECTION II: PERMITTED EQUIPMENT .............................................................................. 5 SECTION II: SPECIAL PROVISIONS ..................................................................................... 7 PERMIT HISTORY ..................................................................................................................... 8 ACRONYMS ................................................................................................................................. 9 DAQE-IN101210292-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Hill Air Force Base Hill Air Force Base - Main Base Mailing Address Physical Address 75 CEG/CEIEA 7290 Weiner Street, Bldg 383 75 CEG/CEIEA 7290 Weiner Street Bldg 383 Hill Air Force Base, UT 84056-5136 Hill Air Force Base, UT 84056-5136 Source Contact UTM Coordinates Name: Erik Dettenmaier 416,588 m Easting Phone: (801) 777-0888 4,553,000 m Northing Email: erik.dettenmaier.1@us.af.mil Datum NAD27 UTM Zone 12 SIC code 9711 (National Security) SOURCE INFORMATION General Description Hill Air Force Base (Hill AFB) is a major U.S. Air Force base located in northern Utah, just south of the city of Ogden. Hill AFB is the home of the Air Force Materiel Command's Ogden Air Logistics Complex which is the worldwide manager for a wide range of aircraft, engines, missiles, software, avionics, and accessories components. NSR Classification Minor Modification at Major Source Source Classification Located in Davis County Airs Source Size: A Applicable Federal Standards None Project Description Hill AFB has requested a modification to the Fuel Storage Tank AO DAQE-AN101210288-23 to replace six (6) diesel fuel underground storage tanks (AQUIS IDs 38302, 38303, 38304, 38305, 38306 and 38307) with three (3) new above ground 40,000 gallons (each) storage tanks (AQUIS IDs 45453, 45454 and 45455). The additional emissions from above ground fixed roof tanks are a result of evaporative losses during storage (breathing/standing losses) and evaporative losses during filling and emptying operations (working losses). The existing six (6) tanks were underground tanks which do not have additional evaporative losses. The diesel throughput remains the same. DAQE-IN101210292-24 Page 4 Process Description Hill AFB is required to store and use fuel (diesel, gasoline, and jet fuel) throughout the Main Base and Little Mountain. Fuel movement at Hill AFB is complex due to Air Force Instructions directing the movement of fuel. Air Force readiness requirements mandate monthly movement/turnovers for jet A fuel storage tanks. Locations and details of fuel movement have been omitted from the permit due to risk to Base security and national security. SUMMARY OF EMISSIONS The emissions listed below are an estimate of the total potential emissions from the source. Some rounding of emissions is possible. Criteria Pollutant Change (TPY) Total (TPY) Volatile Organic Compounds 0.02 29.62 Volatile Organic Compounds - Fugitive 0 4.03 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) 2,2,4-Trimethylpentane (CAS #540841) 0 62 Benzene (Including Benzene From Gasoline) (CAS #71432) 1 532 Cumene (CAS #98828) 0 67 Ethyl Benzene (CAS #100414) 1 182 Generic HAPs (CAS #GHAPS) 18 878 Hexane (CAS #110543) 0 32 Toluene (CAS #108883) 5 1022 Xylenes (Isomers And Mixture) (CAS #1330207) 13 688 Change (TPY) Total (TPY) Total HAPs 0.01 1.73 PUBLIC NOTICE STATEMENT The NOI for the above-referenced project has been evaluated and has been found to be consistent with the requirements of UAC R307. Air pollution producing sources and/or their air control facilities may not be constructed, installed, established, or modified prior to the issuance of an AO by the Director. A 30-day public comment period will be held in accordance with UAC R307-401-7. A notification of the intent to approve will be published in the ORA-01422: exact fetch returns more than requested number of rows on February 6, 2024. During the public comment period the proposal and the evaluation of its impact on air quality will be available for the public to review and provide comment. If anyone so requests a public hearing within 15 days of publication, it will be held in accordance with UAC R307- 401-7. The hearing will be held as close as practicable to the location of the source. Any comments received during the public comment period and the hearing will be evaluated. The proposed conditions of the AO may be changed as a result of the comments received. DAQE-IN101210292-24 Page 5 SECTION I: GENERAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions refer to those rules. [R307-101] I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401] I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1] I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] SECTION II: PERMITTED EQUIPMENT The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. II.A THE APPROVED EQUIPMENT II.A.1 Main Base Fuel Storage Tanks DAQE-IN101210292-24 Page 6 II.A.2 Diesel Fuel Storage Tanks Above Ground (NEW) AQUIS: 34586 Capacity: 80,000 gal AQUIS: 34587 Capacity: 66,300 gal AQUIS: 34581 Capacity: 30,000 gal AQUIS: 38052 Capacity: 30,000 gal AQUIS: 44684 Capacity: 30,000 gal AQUIS: 38053 Capacity: 30,000 gal AQUIS: 45428 Capacity: 30,000 gal AQUIS: 45453 Capacity: 40,000 gal (NEW) AQUIS: 45454 Capacity: 40,000 gal (NEW) AQUIS: 45455 Capacity: 40,000 gal (NEW) II.A.3 Diesel Fuel Storage Tanks Underground AQUIS: 38009 Capacity: 25,000 gal AQUIS: 38179 Capacity: 25,000 gal AQUIS: 38180 Capacity: 25,000 gal AQUIS: 38181 Capacity: 25,000 gal II.A.4 Gasoline Fuel Storage Tanks Above Ground AQUIS: 34582 Capacity: 35,000 gal AQUIS: 34658 Capacity: 35,000 gal AQUIS: 34659 Capacity: 35,000 gal II.A.5 Jet Fuel Storage Tanks Above Ground AQUIS: 3630 Capacity: 2,320,209 gal AQUIS: 3631 Capacity: 1,070,764 gal AQUIS: 3634 Capacity: 2,310,000 gal AQUIS: 3629 Capacity: 550,400 gal AQUIS: 39008 Capacity: 420,000 gal AQUIS: 39009 Capacity: 420,000 gal AQUIS: 3628 Capacity: 366,063 gal AQUIS: 38535 Capacity: 275,000 gal AQUIS: 3618A Capacity: 25,000 gal AQUIS: 3618B Capacity: 25,000 gal AQUIS: 3619A Capacity: 25,000 gal AQUIS: 3619B Capacity: 25,000 gal II.A.6 Jet Fuel Storage Tanks Underground AQUIS: 3706 Capacity: 25,000 gal AQUIS: 3707 Capacity: 25,000 gal II.A.7 Flex Fuel Storage Tanks Fuel Storage Tanks with a capacity greater than or equal to 500 but less than 19,812 gallons II.A.8 Small Fuel Storage Tanks Fuel Storage Tanks with a capacity less than 500 gallons II.A.9 Fuel Dispensing and Loading Equipment Associated fuel dispensing and loading equipment site-wide DAQE-IN101210292-24 Page 7 SECTION II: SPECIAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a The combined fuel received by above ground and underground fuel storage tanks with a capacity greater than or equal to 19,812 gallons, shall not exceed the following rolling 12-month limits: A. 7,500,000 gallons diesel fuel B. 642,000 gallons gasoline fuel C. 102,000,000 gallons jet fuel* *Jet fuel consist of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8] II.B.1.a.1 By the 30th day of each month (or the 28th day for February), a rolling 12-month total shall be determined using records from the previous 12-months. [R307-401-8] II.B.1.a.2 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tanker truck and pipeline delivery logs. These records may be kept in electronic form. [R307-401-8] II.B.1.b For above ground and underground fuel storage tanks with a capacity less than 19,812 gallons and greater than or equal to 500 gallons, the total combined capacity of in-service fuel storage tanks, by fuel type, at Hill AFB shall not exceed the following limits at any time: A. 770,000 gallons combined capacity for diesel tanks B. 123,000 gallons combined capacity for gasoline tanks C. 600,000 gallons combined capacity for jet fuel* tanks *Jet fuel consists of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8] II.B.1.b.1 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tank capacity and fuel contained. These records may be kept in electronic form at Hill AFB. [R307-401-8] II.B.1.b.2 By the 30th day of each month (or the 28th day for February), the total combined tank capacity (by fuel type) shall be determined. [R307-401-8] II.B.1.c Hill AFB is allowed to add or modify any above ground or underground fuel storage tank, provided that the fuel storage tank capacity is less than 19,812 gallons and the capacity limitations in Condition II.B.1.b are not exceeded. The new or modified fuel storage tanks will be horizontal, fixed roof tanks or better with submerged fill. [R307-401-8] DAQE-IN101210292-24 Page 8 II.B.1.c.1 Hill AFB shall provide a notification for the addition or modification of any above ground or underground fuel storage tank with the tank capacity is greater than or equal to 500 gallons and less than 19,812 gallons. The notification shall meet the following: A. Notification shall be submitted to UDAQ seven (7) days prior to installation. Relocation, replacement, or removal of fuel storage tanks with capacity less than 19,812 gallons capacity do not trigger a modification and do not require prior notifications. B. Notification shall include the following information on the new storage tank: fuel storage tank capacity, fuel type, tank type, and updated total combined capacity of fuel storage tanks. C. Hill AFB must demonstrate that the proposed addition does not cause an increase in the currently established base-wide fuel storage tank capacity limits. This demonstration shall include fuel storage tanks list with AQUIS, fuel type, fuel tank capacity and status of equipment. D. UDAQ may request Hill AFB to conduct a new BACT analysis on fuel storage tanks to address new fuel storage tank control technology. UDAQ may then reissue this AO to incorporate the new BACT for any future changes under this condition. E. Hill AFB shall generate a list of all fuel storage tanks with a capacity greater than or equal to 500 gallons and less than 19,812 gallons that are subject to this condition within three (3) working days upon request from a representative of the Director. This fuel storage tank list shall include AQUIS, fuel type, fuel tank capacity and status of equipment. Hill AFB shall maintain records that demonstrate compliance with this condition including, but not limited to, records of the required notifications. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN101210288-23 dated November 2, 2023 Is Derived From NOI dated September 22, 2023 DAQE-IN101210292-24 Page 9 ACRONYMS The following lists commonly used acronyms and associated translations as they apply to this document: 40 CFR Title 40 of the Code of Federal Regulations AO Approval Order BACT Best Available Control Technology CAA Clean Air Act CAAA Clean Air Act Amendments CDS Classification Data System (used by Environmental Protection Agency to classify sources by size/type) CEM Continuous emissions monitor CEMS Continuous emissions monitoring system CFR Code of Federal Regulations CMS Continuous monitoring system CO Carbon monoxide CO2 Carbon Dioxide CO2e Carbon Dioxide Equivalent - Title 40 of the Code of Federal Regulations Part 98, Subpart A, Table A-1 COM Continuous opacity monitor DAQ/UDAQ Division of Air Quality DAQE This is a document tracking code for internal Division of Air Quality use EPA Environmental Protection Agency FDCP Fugitive dust control plan GHG Greenhouse Gas(es) - Title 40 of the Code of Federal Regulations 52.21 (b)(49)(i) GWP Global Warming Potential - Title 40 of the Code of Federal Regulations Part 86.1818- 12(a) HAP or HAPs Hazardous air pollutant(s) ITA Intent to Approve LB/YR Pounds per year MACT Maximum Achievable Control Technology MMBTU Million British Thermal Units NAA Nonattainment Area NAAQS National Ambient Air Quality Standards NESHAP National Emission Standards for Hazardous Air Pollutants NOI Notice of Intent NOx Oxides of nitrogen NSPS New Source Performance Standard NSR New Source Review PM10 Particulate matter less than 10 microns in size PM2.5 Particulate matter less than 2.5 microns in size PSD Prevention of Significant Deterioration PTE Potential to Emit R307 Rules Series 307 R307-401 Rules Series 307 - Section 401 SO2 Sulfur dioxide Title IV Title IV of the Clean Air Act Title V Title V of the Clean Air Act TPY Tons per year UAC Utah Administrative Code VOC Volatile organic compounds Questions? Visit help.column.us - Page 1 of 1 Receipt Column S of tware PBC PO Box 208098 Dallas , T X 75320-8098 he lp.column.us Paid by S tate of Utah - Div is ion of Air Quality Re ce ipt numbe r I nv oice numbe r 89F94EBA-0065 Notice I D 5tOy hT hPoyjtEqHWHLjs Orde r Numbe r UC0085 Publis he r S tandard-Examine r Date paid Fe b 7, 2024 Payme nt me thod VI S A - 2913 De s cription Qty Unit price Amount 02/06/2024: Cus tom Notice 1 259.72 259.72 Bas e Adavit Fe e 1 12.00 12.00 === No tes === No tic e Na me: HAFB 101 2 1 0 2 9 2 O rder Numbe r: UC008 5 Ne t S ubtotal $271.72 T ax 0.00 Proce s s ing Fe e 27.17 Amount paid $298.89 DAQE-NN101210292-24 February 5, 2024 Ogden Standard Examiner Legal Advertising Dept. P.O. Box 12790332 Standard Way Ogden, UT 84412 RE: Legal Notice of Intent to Approve This letter will confirm the authorization to publish the attached NOTICE in the Ogden Standard Examiner on February 6, 2024. Please mail the invoice and affidavit of publication to the Utah State Department of Environmental Quality, Division of Air Quality, P.O. Box 144820, Salt Lake City, Utah 84114-4820. If you have any questions, contact Jeree Greenwood, who may be reached at (385) 306-6514. Sincerely, {{$s }} Jeree Greenwood Office Technician Enclosure cc: Wasatch Front Regional Council cc: Davis County 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 903-3978 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director DAQE-NN101210292-24 Page 2 NOTICE A Notice of Intent for the following project submitted in accordance with R307-401-1, Utah Administrative Code (UAC), has been received for consideration by the Director: Company Name: Hill Air Force Base Location: Hill Air Force Base - Main Base – 75 CEG/CEIEA, 7290 Weiner Street, Bldg 383, Hill Air Force Base, UT Project Description: Hill Air Force Base is a major U.S. Air Force base located in northern Utah, just south of the city of Ogden. Hill Air Force Base has requested a modification to the Fuel Storage Tank Approval Order DAQE-AN101210288-23 to replace six (6) existing underground diesel fuel storage tanks with three (3) new above ground diesel fuel storage tanks. The completed engineering evaluation and air quality impact analysis showed the proposed project meets the requirements of federal air quality regulations and the State air quality rules. The Director intends to issue an Approval Order pending a 30-day public comment period. The project proposal, estimate of the effect on local air quality and draft Approval Order are available for public inspection and comment at the Utah Division of Air Quality, 195 North 1950 West, Salt Lake City, UT 84116. Written comments received by the Division at this same address on or before March 7, 2024 will be considered in making the final decision on the approval/disapproval of the proposed project. Email comments will also be accepted at tdanderson@utah.gov. If anyone so requests to the Director in writing within 15 days of publication of this notice, a hearing will be held in accordance with R307-401-7, UAC. Under Section 19-1-301.5, a person who wishes to challenge a Permit Order may only raise an issue or argument during an adjudicatory proceeding that was raised during the public comment period and was supported with sufficient information or documentation to enable the Director to fully consider the substance and significance of the issue. Date of Notice: February 6, 2024 {{#s=Sig_es_:signer1:signature}} DAQE- RN101210292 January 9, 2024 Amanda Burton Hill Air Force Base 75 CEG/CEIEA 7290 Weiner Street Bldg 383 Hill Air Force Base, UT 840565003 erik.dettenmaier.1@us.af.mil Dear Amanda Burton, Re: Engineer Review: Modification to Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Project Number: N101210292 Please review and sign this letter and attached Engineer Review (ER) within 10 business days. For this document to be considered as the application for a Title V administrative amendment, a Title V Responsible Official must sign the next page. Please contact Tad Anderson at (385) 306-6515 if you have any questions or concerns about the ER. If you accept the contents of this ER, please email this signed cover letter to Tad Anderson at tdanderson@utah.gov. After receiving the signed cover letter, the DAQ will prepare an Intent to Approve (ITA) for a 30-day public comment period. When the public comment period ends, the DAQ will consider any comments received and will issue the Approval Order. If you do not respond to this letter within 10 business days, the project will move forward without your approval. If you have concerns that we cannot resolve, the DAQ Director may issue an Order prohibiting construction. Approval Signature _____________________________________________________________ (Signature & Date) 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 903-3978 www.deq.utah.gov Printed on 100% recycled paper Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 1 OPTIONAL: In order for this Engineer Review and associated Approval Order conditions to be considered as an application to administratively amend your Title V Permit, the Responsible Official, as defined in R307-415-3, must sign the statement below. THIS IS STRICTLY OPTIONAL. If you do not want the Engineer Review to be considered as an application to administratively amend your Operating Permit only the approval signature above is required. Failure to have the Responsible Official sign below will not delay the Approval Order, but will require submittal of a separate Operating Permit Application to revise the Title V permit in accordance with R307-415-5a through 5e and R307-415-7a through 7i. A guidance document: Title V Operating Permit Application Due Dates clarifies the required due dates for Title V operating permit applications and can be viewed at: https://deq.utah.gov/air-quality/permitting-guidance-and-guidelines-air-quality “Based on information and belief formed after reasonable inquiry, I certify that the statements and information provided for this Approval Order are true, accurate and complete and request that this Approval Order be considered as an application to administratively amend the Operating Permit.” Responsible Official _________________________________________________ (Signature & Date) Print Name of Responsible Official _____________________________________ Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 2 UTAH DIVISION OF AIR QUALITY ENGINEER REVIEW SOURCE INFORMATION Project Number N101210292 Owner Name Hill Air Force Base Mailing Address 75 CEG/CEIEA 7290 Weiner Street Bldg 383 Hill Air Force Base, UT, 840565003 Source Name Hill Air Force Base- Main Base Source Location 75 CEG/CEIEA 7290 Weiner Street Bldg 383 Hill Air Force Base, UT 84056-5003 UTM Projection 416,588 m Easting, 4,553,000 m Northing UTM Datum NAD27 UTM Zone UTM Zone 12 SIC Code 9711 (National Security) Source Contact Erik Dettenmaier Phone Number (801) 777-0888 Email erik.dettenmaier.1@us.af.mil Billing Contact Erik Dettenmaier Phone Number (801) 777-0888 Email erik.dettenmaier.1@us.af.mil Project Engineer Tad Anderson, Engineer Phone Number (385) 306-6515 Email tdanderson@utah.gov Notice of Intent (NOI) Submitted September 22, 2023 Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 3 SOURCE DESCRIPTION General Description Hill Air Force Base (Hill AFB) is a major U.S. Air Force base located in northern Utah, just south of the city of Ogden. Hill AFB is the home of the Air Force Materiel Command's Ogden Air Logistics Complex which is the worldwide manager for a wide range of aircraft, engines, missiles, software, avionics, and accessories components. NSR Classification: Minor Modification at Major Source Source Classification Located in Davis County Airs Source Size: A Project Proposal Modification to Fuel Storage Tank Approval Order to DAQE-AN101210288-23, to Replace Tanks Project Description Hill AFB has requested a modification to the Fuel Storage Tank AO DAQE-AN101210288-23 to replace six diesel fuel underground storage tanks (AQUIS IDs 38302, 38303, 38304, 38305, 38306 and 38307) with three new above ground 40,000 gallons (each) storage tanks (AQUIS IDs 45453, 45454 and 45455). The additional emissions from above ground fixed roof tanks are a result of evaporative losses during storage (breathing/standing losses) and evaporative losses during filling and emptying operations (working losses). The existing six tanks were underground tanks which do not have additional evaporative losses. The diesel throughput remains the same. Process Description Hill AFB is required to store and use fuel (diesel, gasoline, and jet fuel) throughout the Main Base and Little Mountain. Fuel movement at Hill AFB is complex due to Air Force Instructions directing the movement of fuel. Air Force readiness requirements mandate monthly movement/turnovers for jet A fuel storage tanks. Locations and details of fuel movement have been omitted from the permit due to risk to Base security and national security. EMISSION IMPACT ANALYSIS Modeling is not required as R307-410-4 and R307-410-5. The emission rate increase from the new above ground diesel fuel storage tanks is 33 pounds per year of VOC emissions and less than 20 pound per year of combined HAPs from fuel. [Last updated November 15, 2023] Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 4 SUMMARY OF EMISSIONS The emissions listed below are an estimate of the total potential emissions from the source. Some rounding of emissions is possible. Criteria Pollutant Change (TPY) Total (TPY) Volatile Organic Compounds 0.02 29.62 Volatile Organic Compounds - Fugitive 0 4.03 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) 2,2,4-Trimethylpentane (CAS #540841) 0 62 Benzene (Including Benzene From Gasoline) (CAS #71432) 1 532 Cumene (CAS #98828) 0 67 Ethyl Benzene (CAS #100414) 1 182 Generic HAPs (CAS #GHAPS) 18 878 Hexane (CAS #110543) 0 32 Toluene (CAS #108883) 5 1022 Xylenes (Isomers And Mixture) (CAS #1330207) 13 688 Change (TPY) Total (TPY) Total HAPs 0.01 1.73 Note: Change in emissions indicates the difference between previous AO and proposed modification. Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 5 Review of BACT for New/Modified Emission Units 1. BACT review regarding Pollutant - VOC BACT analysis for the new diesel fuel storage tank included: Submerged fill, Fixed roof tank, Tank color, and good design and operating practices BACT Selection: BACT to control VOC emissions from the diesel fuel storage tank is low vapor pressure fuel, submerged fill, fixed roof tank, uninsulated exterior surfaces exposed to the sun will be white, beige/sandstone, aluminum or other Department of Defense mandated color, good design and operating practices. [Last updated November 15, 2023] SECTION I: GENERAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. (New or Modified conditions are indicated as “New” in the Outline Label): I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions refer to those rules. [R307-101] I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401] I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1] I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 6 I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307- 401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307- 150] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] SECTION II: PERMITTED EQUIPMENT The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. (New or Modified conditions are indicated as “New” in the Outline Label): II.A THE APPROVED EQUIPMENT II.A.1 Main Base Fuel Storage Tanks II.A.2 Diesel Fuel Storage Tanks Above Ground (NEW) AQUIS: 34586 Capacity: 80,000 gal AQUIS: 34587 Capacity: 66,300 gal AQUIS: 34581 Capacity: 30,000 gal AQUIS: 38052 Capacity: 30,000 gal AQUIS: 44684 Capacity: 30,000 gal AQUIS: 38053 Capacity: 30,000 gal AQUIS: 45428 Capacity: 30,000 gal AQUIS: 45453 Capacity: 40,000 gal (NEW) AQUIS: 45454 Capacity: 40,000 gal (NEW) AQUIS: 45455 Capacity: 40,000 gal (NEW) Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 7 II.A.3 Diesel Fuel Storage Tanks Underground AQUIS: 38009 Capacity: 25,000 gal AQUIS: 38179 Capacity: 25,000 gal AQUIS: 38180 Capacity: 25,000 gal AQUIS: 38181 Capacity: 25,000 gal II.A.4 Gasoline Fuel Storage Tanks Above Ground AQUIS: 34582 Capacity: 35,000 gal AQUIS: 34658 Capacity: 35,000 gal AQUIS: 34659 Capacity: 35,000 gal II.A.5 Jet Fuel Storage Tanks Above Ground AQUIS: 3630 Capacity: 2,320,209 gal AQUIS: 3631 Capacity: 1,070,764 gal AQUIS: 3634 Capacity: 2,310,000 gal AQUIS: 3629 Capacity: 550,400 gal AQUIS: 39008 Capacity: 420,000 gal AQUIS: 39009 Capacity: 420,000 gal AQUIS: 3628 Capacity: 366,063 gal AQUIS: 38535 Capacity: 275,000 gal AQUIS: 3618A Capacity: 25,000 gal AQUIS: 3618B Capacity: 25,000 gal AQUIS: 3619A Capacity: 25,000 gal AQUIS: 3619B Capacity: 25,000 gal II.A.6 Jet Fuel Storage Tanks Underground AQUIS: 3706 Capacity: 25,000 gal AQUIS: 3707 Capacity: 25,000 gal II.A.7 Flex Fuel Storage Tanks Fuel Storage Tanks with a capacity greater than or equal to 500 but less than 19,812 gallons II.A.8 Small Fuel Storage Tanks Fuel Storage Tanks with a capacity of less than 500 gallons II.A.9 Fuel Dispensing and Loading Equipment Associated fuel dispensing and loading equipment site-wide SECTION II: SPECIAL PROVISIONS The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. (New or Modified conditions are indicated as “New” in the Outline Label): II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 8 II.B.1.a The combined fuel received by above ground and underground fuel storage tanks with a capacity greater than or equal to 19,812 gallons, shall not exceed the following rolling 12- month limits: A. 7,500,000 gallons diesel fuel B. 642,000 gallons gasoline fuel C. 102,000,000 gallons jet fuel* *Jet fuel consist of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8]. [R307-401-8] II.B.1.a.1 By the 30th day of each month (or the 28th day for February), a rolling 12-month total shall be determined using records from the previous 12-months. [R307-401-8] II.B.1.a.2 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tanker truck and pipeline delivery logs. These records may be kept in electronic form. [R307-401-8] II.B.1.b For above ground and underground fuel storage tanks with a capacity less than 19,812 gallons and greater than or equal to 500 gallons, the total combined capacity of in-service fuel storage tanks, by fuel type, at Hill AFB shall not exceed the following limits at any time: A. 770,000 gallons combined capacity for diesel tanks B. 123,000 gallons combined capacity for gasoline tanks C. 600,000 gallons combined capacity for jet fuel* tanks *Jet fuel consists of Jet-A, JP-4, JP-5, JP-6, JP-8, JP-10, kerosene or equivalent to be determined by the director. [R307-401-8] II.B.1.b.1 Hill AFB shall maintain records that demonstrate compliance with this condition. Records include, but are not limited to, tank capacity and fuel contained. These records may be kept in electronic form at Hill AFB. [R307-401-8] II.B.1.b.2 By the 30th day of each month (or the 28th day for February), the total combined tank capacity (by fuel type) shall be determined. [R307-401-8] II.B.1.c Hill AFB is allowed to add or modify any above ground or underground fuel storage tank, provided that the fuel storage tank capacity is less than 19,812 gallons and the capacity limitations in Condition II.B.1.b are not exceeded. The new or modified fuel storage tanks will be horizontal, fixed roof tanks or better with submerged fill. [R307-401-8] II.B.1.c.1 Hill AFB shall provide a notification for the addition or modification of any above ground or underground fuel storage tank with the tank capacity is greater than or equal to 500 gallons and less than 19,812 gallons. The notification shall meet the following: A. Notification shall be submitted to UDAQ seven days prior to installation. Relocation, replacement, or removal of fuel storage tanks with capacity less than 19,812 gallons capacity do not trigger a modification and do not require prior notifications. B. Notification shall include the following information on the new storage tank: fuel storage tank capacity, fuel type, tank type, and updated total combined capacity of Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 9 fuel storage tanks. C. Hill AFB must demonstrate that the proposed addition does not cause an increase in the currently established base-wide fuel storage tank capacity limits. This demonstration shall include fuel storage tanks list with AQUIS, fuel type, fuel tank capacity and status of equipment. D. UDAQ may request Hill AFB to conduct a new BACT analysis on fuel storage tanks to address new fuel storage tank control technology. UDAQ may then reissue this AO to incorporate the new BACT for any future changes under this condition. E. Hill AFB shall generate a list of all fuel storage tanks with a capacity greater than or equal to 500 gallons and less than 19,812 gallons that are subject to this condition within three working days upon request from a representative of the Director. This fuel storage tank list shall include AQUIS, fuel type, fuel tank capacity and status of equipment. Hill AFB shall maintain records that demonstrate compliance with this condition including, but not limited to, records of the required notifications. [R307-401-8] Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 10 PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the following documents: Is Derived From NOI dated September 22, 2023 Supersedes DAQE-AN101210288-23 dated April 3, 2023 REVIEWER COMMENTS 1. Comment regarding Emission Estimates: The VOC emission estimate for the replaced diesel fuel storage tank used APIMS. APIMS uses the TANKS 4.09d equations. Emissions calculated using 12 turnovers for each tank. The PTE emissions are based on 8,760 hours of operation per year. [Last updated November 15, 2023] 2. Comment regarding Permit Modification: The PTE emissions associated with the replaced diesel fuel storage tank are easier to track as pounds instead of tons per year. There are no low-level limits for permitting. If a source has any increase in criteria or HAP emissions the permit change is classified as a modification. [Last updated November 6, 2023] 3. Comment regarding Applicable Regulations: Hill AFB is subject to MACT 40 CFR 63, Subpart GG, National Emission Standards for Aerospace Manufacturing and Rework Facilities and UAC R307-355. This operation and equipment are not subject to 40 CFR 63, Subpart GG. Hill AFB is subject UAC R307-355 "Control of Emissions from Aerospace Manufacture and Rework Facilities". [Last updated November 15, 2023] 4. Comment regarding De-aggregate: Hill AFB is classified as a major source of air pollution and subject to the Operating Permit Program. Hill AFB is a SIP-listed source, a major source for VOC and PM10, and a PSD source for NOx and CO. Hill AFB has multiple active AOs but only one Title V permit. Hill AFB is a military air force base and governed under the Department of Defense (DOD). It is not required (for military) nor needed to combine all the approval orders as the Title V is the combined permit. Hill AFB is classified as if all the permits were combined, and all projects and pollutants are looked as though they were one permit. For this reason, the source is allowed to de-aggregate. [Last updated November 6, 2023] 5. Comment regarding SIP Listed Source: Hill AFB is a listed major source with conditions in Part H.12.n of the PM2.5 Serious Nonattainment SIP. The PM2.5 Serious Nonattainment SIP has been approved by the Air Quality Board but has not been approved by Region 8 EPA. The PM2.5 Serious Nonattainment SIP conditions have been incorporated into the current appropriate AOs. This process was reviewed in the SIP analysis, but no conditions were assigned to this operation/AO. No additional SIP /permitting action is required for the addition of the new diesel fuel storage tank. [Last updated November 6, 2023] 6. Comment regarding HAP emissions: The replaced diesel fuel storage tanks have HAP emissions being emitted from this operation but the increase in HAP combined emissions is below less than 20 pound per year from the turnover of fuel. [Last updated November 15, 2023] Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 11 7. Comment regarding Permit Modification: This permit modification involves updating the equipment list, no conditions were altered as a result of the equipment change. The emissions increase is a result of changing tanks from underground to above ground. [Last updated November 6, 2023] Engineer Review N101210292: Hill Air Force Base- Main Base January 9, 2024 Page 12 ACRONYMS The following lists commonly used acronyms and associated translations as they apply to this document: 40 CFR Title 40 of the Code of Federal Regulations AO Approval Order BACT Best Available Control Technology CAA Clean Air Act CAAA Clean Air Act Amendments CDS Classification Data System (used by EPA to classify sources by size/type) CEM Continuous emissions monitor CEMS Continuous emissions monitoring system CFR Code of Federal Regulations CMS Continuous monitoring system CO Carbon monoxide CO2 Carbon Dioxide CO2e Carbon Dioxide Equivalent - 40 CFR Part 98, Subpart A, Table A-1 COM Continuous opacity monitor DAQ/UDAQ Division of Air Quality DAQE This is a document tracking code for internal UDAQ use EPA Environmental Protection Agency FDCP Fugitive dust control plan GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i) GWP Global Warming Potential - 40 CFR Part 86.1818-12(a) HAP or HAPs Hazardous air pollutant(s) ITA Intent to Approve LB/HR Pounds per hour LB/YR Pounds per year MACT Maximum Achievable Control Technology MMBTU Million British Thermal Units NAA Nonattainment Area NAAQS National Ambient Air Quality Standards NESHAP National Emission Standards for Hazardous Air Pollutants NOI Notice of Intent NOx Oxides of nitrogen NSPS New Source Performance Standard NSR New Source Review PM10 Particulate matter less than 10 microns in size PM2.5 Particulate matter less than 2.5 microns in size PSD Prevention of Significant Deterioration PTE Potential to Emit R307 Rules Series 307 R307-401 Rules Series 307 - Section 401 SO2 Sulfur dioxide Title IV Title IV of the Clean Air Act Title V Title V of the Clean Air Act TPY Tons per year UAC Utah Administrative Code VOC Volatile organic compounds Source:Hill Site:Main Base-Storage Tank Date:11/9/2023 Project #:N10121-0288 DAQE- AN101210288-23 Change New Change New TPY TPY TPY lb/yr lb/yr VOC Total 33.63 0.02 33.65 40 67300 VOC point 29.6 0.02 29.62 40 59240 VOC fugtive 4.03 0 4.03 0 8060 HAP Total 1.72 0.01 1.73 20 3460 HAP point 0.92 0.01 0.93 20 1860 HAP fugtive 0.8 0 0.8 0 1600 Existing change New NEW HAP lb/yr lb/yr lb/yr TPY 2,2,4-Trimethylpentane 62 0 62 0.031 Benzene 531 0.5 532 0.2660 Cumene 67 0.0 67 0.0335 New total old Ethyl Benzene 182 0.7 182 0.0912 11.9 2.65 9.25 Hexane 32 0.1 32 0.0161 11 AGT #REF! Naphthalene 0.09 0.4 0.44 0.0002 Toluene 1022 4.5 1,026 0.5131 Xylene 687 12.1 699 0.3497 Generic HAP 878 0.4 878 0.4392 18.170 3,480 0.009085 1.7399 R307-410-5 2016 ACGIH HAP's Modeling Existing Increase New Emissions Threshold Emissions Source Source Source Threshold Limit Threshold Modeling HAP lb/hr lb/hr lb/hr Factor Value Value Required Benzene 0.2660 0.2660 0.051 1.6000 0.0816 No Cumene 0.0335 0.0335 0.051 264.0000 13.464 No Ethyl benzene 0.0912 0.0912 0.051 86.8400 4.42884 No Isooctane 0.0161 0.0161 0.051 1401.0000 71.451 No n-Hexane 0.5131 0.5131 0.051 176.0000 8.976 No Toluene 0.3497 0.3497 0.051 75.3600 3.84336 No Xylene 0.4392 0.4392 0.051 434.0000 22.134 No The following are the HAP emissions in pounds per hour with the modeling ETV threshold values less than 20 meters and vertically restricted: VOC HAP Large tanks Mid sized DEPARTMENT OF THE AIR FORCE 75TH CIVIL ENGINEER GROUP (AFMC) HILL AIR FORCE BASE UTAH 22 September 2023 Amanda Burton Chief, Environmental Branch 75 CEG/CEIE 7290 Weiner Road Hill Air Force Base Utah 84056-5003 Director Utah Division of Air Quality Attention: NSR P.O. Box 144820 Salt Lake City Utah 84114-4820 Dear Director Hill Air Force Base (AFB) is submitting this notice of intent to modify approval order (AO) DAQE-AN101210288-23 for the replacement of six fuel tanks, AQUIS IDs 38302, 38303, 38304, 38305, 38306 and 38307. The replacement fuel storage tanks will have the following specifications: Tank type: above ground horizontal fixed roof Fuel: diesel Capacity: 40,000-gallons Quantity: 3 AQUIS ID: 45453, 45454, 45455 The potential to emit (PTE) emissions associated with this fuel tank replacement were calculated using the Air Force’s Air Program Information Management Systems in accordance with the Air Force Civil Engineer Center Air Emission Guide for Air Force Stationary Sources and the Environmental Protection Agency’s AP-42 guidance. Detailed emission calculations are provided in Attachment 1. PTE emissions are provided in the following table: Pollutant AO PTE Emissions PTE Emissions Increase New AO PTE Emissions lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr PM10 0 0 0 0 0 0 PM2.5 0 0 0 0 0 0 SOX 0 0 0 0 0 0 NOX 0 0 0 0 0 0 CO 0 0 0 0 0 0 Pollutant AO PTE Emissions PTE Emissions Increase New AO PTE Emissions lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr VOC 7.68 33.63 3.77E-03 0.02 7.68 33.65 HAPs 0.39 1.72 2.07E-03 0.01 0.39 1.73 Ammonia 0 0 0 0 0 0 Lead 0 0 0 0 0 0 Total CO2e 0 0 0 0 0 0 The changes proposed in this NOI do not result in a major modification. Therefore, the requirements of Utah Administrative Code (UAC) R307-403, R307-405, R307-406 and R307- 420 do not apply. In accordance with UAC R307-410-4, criteria pollutant modeling is not required because there are no criteria emission increases. Pursuant to R307-410-5(1)(c), a screening analysis was conducted for HAP emissions. From the analysis, it was determined the proposed HAP emission increases were below the respective emission threshold values based upon the applicable threshold limit value – time weighted average. The new fuel tanks will not be subject to any New Source Performance Standards or any National Emission Standards for Hazardous Air Pollutants. A best available control technology (BACT) determination is included as Attachment 2. BACT for the new fuel tanks includes submerged fill, fixed roof tank, exterior surfaces exposed to the sun will be white, beige/sandstone, aluminum or other Department of Defense mandated color, compliance with the AO 12-month rolling total diesel fuel limitation and good design and operating practices. Hill AFB requests the enhanced new source review process for this AO so the Main Base Title V Operating Permit can be modified administratively. Installation and operation of the new fuel tanks is scheduled to occur spring of 2024. If you have any questions or would like to discuss this issue further, my point of contact is Dr. Erik Dettenmaier 75 CEG/CEIEA, at (801) 777-0888 or erik.dettenmaier.1@us.af.mil. Sincerely 9/22/2023 X Amanda Burton Signed by: BURTON.AMANDA.CHRISTINE.1270023068 AMANDA BURTON, NH-III, DAF Chief, Environmental Branch 2 Attachments: 1. PTE Emission Calculations 2. BACT Determination VOC and Speciated HAP PTE Emissions for Fuel Tank Replacement lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr VOC 86.49 0.01 0.04 53.46 6.10E-03 0.03 33.03 3.77E-03 0.02 Anthracene 2.98E-07 3.41E-11 1.49E-10 6.15E-08 7.02E-12 3.07E-11 2.37E-07 2.70E-11 1.18E-10 Benzene 0.58 6.63E-05 2.91E-04 0.12 1.37E-05 5.99E-05 0.46 5.27E-05 2.31E-04 Dibenzofuran 6.56E-04 7.49E-08 3.28E-07 1.35E-04 1.54E-08 6.76E-08 5.21E-04 5.95E-08 2.61E-07 Ethyl benzene 0.82 9.39E-05 4.11E-04 0.17 1.93E-05 8.47E-05 0.65 7.45E-05 3.27E-04 Fluorene 2.10E-03 2.40E-07 1.05E-06 4.32E-04 4.94E-08 2.16E-07 1.67E-03 1.90E-07 8.33E-07 N-Hexane 0.12 1.38E-05 6.05E-05 0.02 2.84E-06 1.25E-05 0.10 1.10E-05 4.80E-05 Naphthalene 0.45 5.09E-05 2.23E-04 0.09 1.05E-05 4.60E-05 0.35 4.04E-05 1.77E-04 Phenanthrene 4.62E-05 5.27E-09 2.31E-08 9.52E-06 1.09E-09 4.76E-09 3.67E-05 4.19E-09 1.83E-08 Pyrene 1.32E-06 1.51E-10 6.62E-10 2.73E-07 3.11E-11 1.36E-10 1.05E-06 1.20E-10 5.25E-10 Toluene 5.68 6.49E-04 2.84E-03 1.17 1.34E-04 5.85E-04 4.51 5.15E-04 2.26E-03 Xylene 15.23 1.74E-03 7.62E-03 3.14 3.58E-04 1.57E-03 12.09 1.38E-03 6.05E-03 Total HAPs 22.89 2.61E-03 0.01 4.72 5.38E-04 2.36E-03 18.17 2.07E-03 0.01 Pollutant New Fuel Tanks - PTE Emissions Existing Fuel Tanks - PTE Emissions PTE Emissions Increase (Existing Fuel Tank Emissions Subtracted from New Fuel Tank Emissions) Attachment 1: PTE Emission Calculations VOC and Speciated HAP PTE Emissions - New Fuel Tanks lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr VOC 28.83 3.29E-03 0.01 28.83 3.29E-03 0.01 28.83 3.29E-03 0.01 86.49 0.01 0.04 Anthracene 9.95E-08 1.14E-11 4.97E-11 9.9E-08 1.14E-11 4.97E-11 9.95E-08 1.14E-11 4.97E-11 2.98E-07 3.41E-11 1.49E-10 Benzene 0.19 2.21E-05 9.69E-05 0.19 2.21E-05 9.69E-05 0.19 2.21E-05 9.69E-05 0.58 6.63E-05 2.91E-04 Dibenzofuran 2.19E-04 2.50E-08 1.09E-07 2.19E-04 2.50E-08 1.09E-07 2.19E-04 2.50E-08 1.09E-07 6.56E-04 7.49E-08 3.28E-07 Ethyl benzene 0.27 3.13E-05 1.37E-04 0.27 3.13E-05 1.37E-04 0.27 3.13E-05 1.37E-04 0.82 9.39E-05 4.11E-04 Fluorene 7.00E-04 7.99E-08 3.50E-07 7.00E-04 7.99E-08 3.50E-07 7.00E-04 7.99E-08 3.50E-07 2.10E-03 2.40E-07 1.05E-06 N-Hexane 0.04 4.60E-06 2.02E-05 0.04 4.60E-06 2.02E-05 0.04 4.60E-06 2.02E-05 0.12 1.38E-05 6.05E-05 Naphthalene 0.15 1.70E-05 7.44E-05 0.15 1.70E-05 7.44E-05 0.15 1.70E-05 7.44E-05 0.45 5.09E-05 2.23E-04 Phenanthrene 1.54E-05 1.76E-09 7.70E-09 1.5E-05 1.76E-09 7.70E-09 1.54E-05 1.76E-09 7.70E-09 4.62E-05 5.27E-09 2.31E-08 Pyrene 4.41E-07 5.04E-11 2.21E-10 4.4E-07 5.04E-11 2.21E-10 4.41E-07 5.04E-11 2.21E-10 1.32E-06 1.51E-10 6.62E-10 Toluene 1.89 2.16E-04 9.47E-04 1.89 2.16E-04 9.47E-04 1.89 2.16E-04 9.47E-04 5.68 6.49E-04 2.84E-03 Xylene 5.08 5.80E-04 2.54E-03 5.08 5.80E-04 2.54E-03 5.08 5.80E-04 2.54E-03 15.23 1.74E-03 7.62E-03 Total HAPs 7.63 8.71E-04 3.81E-03 7.63 8.71E-04 3.81E-03 7.63 8.71E-04 3.81E-03 22.89 2.61E-03 0.01 Notes: - lb/hr emissions calculated using the ton/yr emissions and assuming the emissions occur over 8,760 hours per year. - HAP emissions calculated using the fuel speciations in the table below which were used in the 2018 notice of intent for the Main Base consolidated fuel tanks. Fuel HAP Speciations Pollutant Diesel Vapor Phase (wt %) Anthracene 1.15E-07 Benzene 2.24E-01 Dibenzofuran 2.53E-04 Ethyl benzene 3.17E-01 Fluorene 8.09E-04 N-Hexane 4.66E-02 Naphthalene 1.72E-01 Phenanthrene 1.78E-05 Pyrene 5.10E-07 Toluene 2.19 Xylene 5.87 - VOC PTE emissions calculated using APIMS. APIMS uses the TANKS 4.09d equations along with Hill AFB specific average meteorological data and fuel parameters to estimate tank emissions. Emissions calculated using 12 turnovers for each tank, this is the same methodology used in the 2018 notice of intent for the Main Base consolidated fuel tanks. Pollutant AQUIS ID 45453 - PTE Emissions AQUIS ID 45454 - PTE Emissions AQUIS ID 45455 - PTE Emissions New Fuel Tanks - PTE Emissions Attachment 1: PTE Emission Calculations VOC and Speciated HAP PTE Emissions - Existing Fuel Tanks lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr lb/yr lb/hr ton/yr VOC 6.89 7.87E-04 3.45E-03 6.89 7.87E-04 3.45E-03 11.01 1.26E-03 5.51E-03 11.01 1.26E-03 5.51E-03 8.83 1.01E-03 4.42E-03 8.83 1.01E-03 4.42E-03 53.46 6.10E-03 0.03 Anthracene 7.92E-09 9.05E-13 3.96E-12 7.92E-09 9.05E-13 3.96E-12 1.27E-08 1.45E-12 6.33E-12 1.27E-08 1.45E-12 6.33E-12 1.02E-08 1.16E-12 5.08E-12 1.02E-08 1.16E-12 5.08E-12 6.15E-08 7.02E-12 3.07E-11 Benzene 0.02 1.76E-06 7.72E-06 0.02 1.76E-06 7.72E-06 0.02 2.82E-06 1.23E-05 0.02 2.82E-06 1.23E-05 0.02 2.26E-06 9.89E-06 0.02 2.26E-06 9.89E-06 0.12 1.37E-05 5.99E-05 Dibenzofuran 1.74E-05 1.99E-09 8.72E-09 1.74E-05 1.99E-09 8.72E-09 2.79E-05 3.18E-09 1.39E-08 2.79E-05 3.18E-09 1.39E-08 2.23E-05 2.55E-09 1.12E-08 2.23E-05 2.55E-09 1.12E-08 1.35E-04 1.54E-08 6.76E-08 Ethyl benzene 0.02 2.49E-06 1.09E-05 0.02 2.49E-06 1.09E-05 0.03 3.98E-06 1.75E-05 0.03 3.98E-06 1.75E-05 0.03 3.20E-06 1.40E-05 0.03 3.20E-06 1.40E-05 0.17 1.93E-05 8.47E-05 Fluorene 5.57E-05 6.36E-09 2.79E-08 5.57E-05 6.36E-09 2.79E-08 8.91E-05 1.02E-08 4.45E-08 8.91E-05 1.02E-08 4.45E-08 7.14E-05 8.15E-09 3.57E-08 7.14E-05 8.15E-09 3.57E-08 4.32E-04 4.94E-08 2.16E-07 N-Hexane 3.21E-03 3.67E-07 1.61E-06 3.21E-03 3.67E-07 1.61E-06 5.13E-03 5.86E-07 2.57E-06 5.13E-03 5.86E-07 2.57E-06 4.11E-03 4.70E-07 2.06E-06 4.11E-03 4.70E-07 2.06E-06 0.02 2.84E-06 1.25E-05 Naphthalene 0.01 1.35E-06 5.93E-06 0.01 1.35E-06 5.93E-06 0.02 2.16E-06 9.47E-06 0.02 2.16E-06 9.47E-06 0.02 1.73E-06 7.59E-06 0.02 1.73E-06 7.59E-06 0.09 1.05E-05 4.60E-05 Phenanthrene 1.23E-06 1.40E-10 6.13E-10 1.23E-06 1.40E-10 6.13E-10 1.96E-06 2.24E-10 9.80E-10 1.96E-06 2.24E-10 9.80E-10 1.57E-06 1.79E-10 7.86E-10 1.57E-06 1.79E-10 7.86E-10 9.52E-06 1.09E-09 4.76E-09 Pyrene 3.51E-08 4.01E-12 1.76E-11 3.51E-08 4.01E-12 1.76E-11 5.62E-08 6.41E-12 2.81E-11 5.62E-08 6.41E-12 2.81E-11 4.50E-08 5.14E-12 2.25E-11 4.50E-08 5.14E-12 2.25E-11 2.73E-07 3.11E-11 1.36E-10 Toluene 0.15 1.72E-05 7.54E-05 0.15 1.72E-05 7.54E-05 0.24 2.75E-05 1.21E-04 0.24 2.75E-05 1.21E-04 0.19 2.21E-05 9.67E-05 0.19 2.21E-05 9.67E-05 1.17 1.34E-04 5.85E-04 Xylene 0.40 4.62E-05 2.02E-04 0.40 4.62E-05 2.02E-04 0.65 7.38E-05 3.23E-04 0.65 7.38E-05 3.23E-04 0.52 5.92E-05 2.59E-04 0.52 5.92E-05 2.59E-04 3.14 3.58E-04 1.57E-03 Total HAPs 0.61 6.94E-05 3.04E-04 0.61 6.94E-05 3.04E-04 0.97 1.11E-04 4.86E-04 0.97 1.11E-04 4.86E-04 0.78 8.89E-05 3.89E-04 0.78 8.89E-05 3.89E-04 4.72 5.38E-04 2.36E-03 Notes: - lb/hr emissions calculated using the ton/yr emissions and assuming the emissions occur over 8,760 hours per year. - HAP emissions calculated using the fuel speciations in the table below which were used in the 2018 notice of intent for the Main Base consolidated fuel tanks. Fuel HAP Speciations Pollutant Diesel Vapor Phase (wt %) Anthracene 1.15E-07 Benzene 2.24E-01 Dibenzofuran 2.53E-04 Ethyl benzene 3.17E-01 Fluorene 8.09E-04 N-Hexane 4.66E-02 Naphthalene 1.72E-01 Phenanthrene 1.78E-05 Pyrene 5.10E-07 Toluene 2.19 Xylene 5.87 - VOC PTE emissions calculated using APIMS. APIMS uses the TANKS 4.09d equations along with Hill AFB specific average meteorological data and fuel parameters to estimate tank emissions. Emissions calculated using 12 turnovers for each tank, this is the same methodology used in the 2018 notice of intent for the Main Base consolidated fuel tanks. Pollutant AQUIS ID 38302 - PTE Emissions Existing Fuel Tanks - PTE Emissions AQUIS ID 38303 - PTE Emissions AQUIS ID 38304 - PTE Emissions AQUIS ID 38305 - PTE Emissions AQUIS ID 38306 - PTE Emissions AQUIS ID 38307 - PTE Emissions Attachment 1: PTE Emission Calculations Hazardous Air Pollutant Screening Analysis Pollutant CAS # Emission Rate Increase (lb/hr) Acute/ Chronic/ Carcinogenic ETF (lb/m3 / mg/hr) TLV (mg/m3) ETV (lb/hr) Exceed ETV? Anthracene 120-12-7 2.70E-11 Not Listed - - - No Benzene 71-43-2 5.27E-05 Chronic 0.269 1.60 0.43 No Dibenzofuran 132-64-9 5.95E-08 Not Listed - - - No Ethyl benzene 100-41-4 7.45E-05 Chronic 0.269 86.84 23.36 No Fluorene 86-73-7 1.90E-07 Not Listed - - - No N-Hexane 110-54-3 1.10E-05 Chronic 0.269 176 47.41 No Naphthalene 91-20-3 4.04E-05 Chronic 0.269 52.43 14.10 No Phenanthrene 85-01-8 4.19E-09 Not Listed - - - No Pyrene 129-00-3 1.20E-10 Not Listed - - - No Toluene 108-88-3 5.15E-04 Chronic 0.269 75.36 20.27 No Xylene 1330-20-7 1.38E-03 Chronic 0.269 434 117 No Notes: - Emission threshold value (ETV) calculated by multiplying the ETF by the TLV for each pollutant. - Threshold limit value (TLV) from ACGIH Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices (2016). TLV calculated by multiplying the time-weighted average, short-term exposure limit, or ceiling value by the gram molecular weight of the pollutant and dividing by 24.45. - Acute, chronic or carcinogenic determination from the American Conference of Government Industrial Hygienists (ACGIH) T hreshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices (2016), except benzene has been determined to be chronic per R307-410-5. - Emission threshold factor (ETF) values from Table 2 of R307-410-5. The distance from the location of the new fuel storage tank to the property boundary will be greater than 100 meters. It is conservatively assumed the release point will be vertically restricted (release of an air contaminant through a stack or opening whose flow is directed in a downward or horizontal direction due to the alignment of the opening or a physical obstruction placed beyond the opening, or at a height which is less than 1.3 times the height of an adjacent building or structure, as measured from ground level). Attachment 1: PTE Emission Calculations TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38302 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Ust Fuel Storage 33.70 11.20 25,000.00 12.00 300,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 6.89All 6.89 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.12All 0.12 0.00 6.49All 6.49 0.00 0.28All 0.28 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 6.89 0.00 0.00 0.00 0.00 0.00 0.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 6.89 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 21:39 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.12 0.28 6.49 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 0.00 0.00 0.00 0.12 0.28 6.49 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38303 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Ust Fuel Storage 33.70 11.20 25,000.00 12.00 300,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 6.89All 6.89 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.12All 0.12 0.00 6.49All 6.49 0.00 0.28All 0.28 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 6.89 0.00 0.00 0.00 0.00 0.00 0.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 6.89 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 21:58 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.12 0.28 6.49 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 300,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 0.00 0.00 0.00 0.12 0.28 6.49 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38304 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Ust Fuel Storage 39.40 13.10 40,000.00 12.00 480,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 11.01All 11.01 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.17All 0.17 0.00 10.41All 10.41 0.00 0.43All 0.43 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13.10 13.10 13.10 13.10 13.10 13.10 13.10 25.64 25.64 25.64 25.64 25.64 25.64 25.64 39.40 39.40 39.40 39.40 39.40 39.40 39.40 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 11.01 0.00 0.00 0.00 0.00 0.00 0.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 13.10 13.10 13.10 13.10 13.10 13.10 13.10 11.01 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 13.10 13.10 13.10 13.10 13.10 13.10 25.64 25.64 25.64 25.64 25.64 25.64 39.40 39.40 39.40 39.40 39.40 39.40 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 21:43 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.17 0.43 10.41 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 13.10 13.10 13.10 13.10 13.10 13.10 0.00 0.00 0.00 0.17 0.43 10.41 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38305 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Heating Oil Ust Fuel Storage 33.70 11.20 40,000.00 12.00 480,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 11.01All 11.01 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.17All 0.17 0.00 10.41All 10.41 0.00 0.43All 0.43 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 11.01 0.00 0.00 0.00 0.00 0.00 0.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 11.20 11.01 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 11.20 11.20 11.20 11.20 11.20 11.20 21.93 21.93 21.93 21.93 21.93 21.93 33.70 33.70 33.70 33.70 33.70 33.70 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 22:00 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.17 0.43 10.41 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 480,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 11.20 11.20 11.20 11.20 11.20 11.20 0.00 0.00 0.00 0.17 0.43 10.41 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38306 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Ust Fuel Storage 37.00 12.20 32,000.00 12.00 384,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 8.83All 8.83 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.14All 0.14 0.00 8.36All 8.36 0.00 0.33All 0.33 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.20 12.20 12.20 12.20 12.20 12.20 12.20 23.98 23.98 23.98 23.98 23.98 23.98 23.98 37.00 37.00 37.00 37.00 37.00 37.00 37.00 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 8.83 0.00 0.00 0.00 0.00 0.00 0.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.20 12.20 12.20 12.20 12.20 12.20 12.20 8.83 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 12.20 12.20 12.20 12.20 12.20 12.20 23.98 23.98 23.98 23.98 23.98 23.98 37.00 37.00 37.00 37.00 37.00 37.00 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 21:45 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.14 0.33 8.36 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.20 12.20 12.20 12.20 12.20 12.20 0.00 0.00 0.00 0.14 0.33 8.36 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): 38307 Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Ust Fuel Storage 37.00 12.20 32,000.00 12.00 384,000.00 No Yes Shell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 8.83All 8.83 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.14All 0.14 0.00 8.36All 8.36 0.00 0.33All 0.33 0.00 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.20 12.20 12.20 12.20 12.20 12.20 12.20 23.98 23.98 23.98 23.98 23.98 23.98 23.98 37.00 37.00 37.00 37.00 37.00 37.00 37.00 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 8.83 0.00 0.00 0.00 0.00 0.00 0.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.20 12.20 12.20 12.20 12.20 12.20 12.20 8.83 0.00 0.00 0.00 0.00 0.00 0.00 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.00 0.00 0.00 12.20 12.20 12.20 12.20 12.20 12.20 23.98 23.98 23.98 23.98 23.98 23.98 37.00 37.00 37.00 37.00 37.00 37.00 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/08/28 22:01 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.14 0.33 8.36 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 384,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.20 12.20 12.20 12.20 12.20 12.20 0.00 0.00 0.00 0.14 0.33 8.36 TANKS Emissions Report - Detail Format Tank Identification and Physical Characteristics Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 1 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Identification Air Tank ID: City: State: Company: Tank Type: Description: Tank Dimensions Shell Length (ft): Diameter (ft): Turnovers: Volume (gallons): Net Throughput (gal/yr): Is Tank Heated (Yes/No): Is Tank Underground (Yes/No/Convault): Paint Characteristics Shell Color/Shade: Breather Vent Settings Vacuum Settings (psig): Pressure Settings (psig): NEW 40K Hill Afb Utah Hill Air Force Base Horizontal Fixed Roof Above Ground Diesel Storage Tank 52.10 12.00 40,000.00 12.00 360,000.00 No No White NewShell Condition: 0.03 -0.03 Meteorological Data used in Emissions Calculations: Hill Afb, UT (Avg Atmospheric Pressure = psia) TANKS Emissions Report - Detail Format Liquid Contents of Storage Tank Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 2 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt All All All All All All All All All All All All All Daily Liquid Surf. Temperature (deg F)Vapor Pressures (psia) Basis for Vapor Pressure CalculationsMonth Vapor Mass Fract. Liquid Mass Fract. Vapor Mol. WeightMax.Min. Mol. WeightAvg.Max.Min.Avg. Liquid Bulk Temp. (deg f)Mixture/Component Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Individual Tank Emission Totals Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 3 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Annual Emissions Report 28.83All 8.86 19.97 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.02All 0.00 0.02 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.00All 0.00 0.00 0.44All 0.14 0.30 27.29All 8.39 18.90 1.08All 0.33 0.75 Losses (lbs) Month Total EmissionsBreathing LossWorking LossMixture/Components Diesel 2020 Anthracene Benzene Dibenzofuran Ethyl Benzene Fluorene N-Hexane Naphthalene Phenanthrene Pyrene Toluene Unidentified Diesel Components Xylene TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 4 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 19.97 0.00 0.00 0.00 0.00 0.00 0.02 12.00 12.00 12.00 12.00 12.00 12.00 12.00 28.22 28.22 28.22 28.22 28.22 28.22 28.22 52.10 52.10 52.10 52.10 52.10 52.10 52.10 10.731 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 5 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All All AllAll Diesel 2020 Anthracene Benzene Dibenzofuran Fluorene N-HexaneEthyl Benzene 0.06 0.06 0.06 0.06 0.06 0.06 0.06 8.86 0.00 0.00 0.00 0.00 0.00 0.00 360,000.00 360,000.00 360,000.00 360,000.00 360,000.00 360,000.00 360,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 28.83 0.00 0.00 0.00 0.00 0.00 0.02 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 Page: 6 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Standing Losses (lb): Vapor Space Volume (cu ft): Vapor Density (lb/cu ft): Vapor Space Expansion Factor: Vented Vapor Saturation Factor: Tank Vapor Space Volume Vapor Space Volume (cu ft): Tank Diameter (ft): Effective Diameter (ft): Vapor Space Outage (ft): Tank Shell Length (ft): Vapor Density Vapor Density (lb/cu ft): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg F): Ideal Gas Constant R (psia cu ft/lb-mol-deg R): Liquid Bulk Temperature (deg R): Tank Paint Solar Absorptance (Shell): Tank Paint Solar Absorptance (Roof): Daily Total Solar Insolation Factor (btu/sq ft day): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.00 0.00 0.00 0.30 0.75 18.90 12.00 12.00 12.00 12.00 12.00 12.00 28.22 28.22 28.22 28.22 28.22 28.22 52.10 52.10 52.10 52.10 52.10 52.10 10.731 10.731 10.731 10.731 10.731 10.731 TANKS Emissions Report - Detail Format Detail Calculations (AP-42) Horizontal Fixed Roof Hill Afb, UT Year: 2023 End of Report Page: 7 2023/09/18 18:22 UTCFor Official Use Onlytankemissions.rpt Annual Emission Calculations Mixture Name: Vapor Space Expansion Factor Vapor Space Expansion Factor: Vapor Space Expansion Factor (continued) Daily Vapor Temperature Range (deg R): Daily Vapor Pressure Range (psia): Breather Vent Pressure Setting Range (psia): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Vapor Pressure at Daily Minimum Liquid Surface Temperature (psia): Vapor Pressure at Daily Maximum Liquid Surface Temperature (psia): Daily Average Liquid Surface Temperature (deg R): Daily Minimum Liquid Surface Temperature (deg R): Daily Maximum Liquid Surface Temperature (deg R): Daily Average Ambient Temperature (deg R): Vented Vapor Saturation Factor Vented Vapor Saturation Factor: Vapor Space Outage (ft): Working Losses (lb): Vapor Molecular Weight (lb/lb-mole): Vapor Pressure at Daily Average Liquid Surface Temperature (psia): Net Throughput (gal): Annual Turnovers: Turnover Factor: Tank Diameter (ft): Working Loss Product Factor: Total Losses (lb): All All All All AllAll Naphthalene Phenanthrene Pyrene Toluene XyleneUnidentified Diesel Components 0.06 0.06 0.06 0.06 0.06 0.06 0.00 0.00 0.00 0.14 0.33 8.39 360,000.00 360,000.00 360,000.00 360,000.00 360,000.00 360,000.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 0.00 0.00 0.00 0.44 1.08 27.29 Attachment 2: BACT Determination To evaluate the appropriate best available control technology (BACT) for the 40,000-gallon diesel fuel storage tanks, the Environmental Protection Agency (EPA)’s Reasonably Available Control Technology-BACT-Lowest Achievable Emission Rate Clearinghouse (RBCL) was reviewed. The RBCL provides listings of emission control determinations made by state and local air pollution control agencies as well as the regional EPA offices and includes control technologies and/or work practices that may be suitable for each process type code. In addition to the RBCL, other sources including control equipment vendors, published literature and previous Utah Division of Air Quality BACT determinations for storage tanks were reviewed. The following is a list of control technologies identified. 1) EPA’s RBLC was reviewed to determine EPA BACT decisions for fuel storage tanks. These BACT determinations are summarized in the following table. RBCL ID Tank Description VOC Control Determination IN-0158 550 gal ultra-low sulfur diesel tank. Good design and operating practices. IN-0273 HFR tanks storing diesel fuel. Capacities: 650 gal, 5,000 gal. Use of good design and operating practices. Each tank shall utilize a fixed roof. FL-0354 3,000,000 gal ultra-low sulfur diesel tank. Use of fuel with vapor pressure below Subpart Kb threshold. Low vapor pressure prevents evaporative losses. LA-0316 54,144 gal diesel tanks. Fixed roof tanks. OH-0317 3,000,000 gal diesel tanks. Submerged fill. OK-0154 2,800 gal diesel tank. Fixed roof tank. TX-0728 10,708 gal diesel tank. Low vapor pressure fuel, submerged fill, white tank. TX-0799 Fuel tanks of various capacities. Fixed roof tanks, submerged fill, white or aluminum exterior surfaces. TX-0825 HFR tanks storing products with a vapor pressure < 0.1 psia. Capacities: 546 gal, 2,016 gal, 2,982 gal, 9,996 gal, 12,600 gal, 630,000 gal. Painted white, submerged fill. 2) The Texas Commission on Environmental Quality (TCEQ) guidelines were reviewed to determine BACT decisions for fuel storage tanks. The TCEQ BACT guidelines for above ground storage tanks were last updated June 2015 and are summarized in the following table. Attachment 2: BACT Determination Tank Capacity / Fuel True Vapor Pressure (TVP) BACT Tank capacity < 25,000 gallons or TVP < 0.50 psia Fixed roof with submerged fill. White or aluminum uninsulated exterior surfaces exposed to the sun. 3) New Source Performance Standards (NSPS) Subpart Kb – Standards of Performance for Volatile Organic Liquid Storage Vessels (Including Petroleum Liquid Storage Vessels) for Which Construction, Reconstruction, or Modification Commenced After July 23, 1984: NSPS Subpart Kb applicability is based on storage tank capacity and the construction, reconstruction and modification date of the tank. There are exceptions to the applicability based on tank capacity and the maximum true vapor pressure (TVP) of the liquid stored. a. Applicability: i. Tank capacity >= 75 m3 (19,812 gallons) ii. Except: 1. Tank capacity >= 151 m3 (39,890 gallons) and liquid TVP < 3.5 kPa (0.51 psi), or 2. 75 m3 =< tank capacity =< 151 m3 and liquid TVP < 15.0 kPa (2.18 psi) The new 40,000-gallon diesel fuel tanks will not be subject to NSPS Subpart Kb because the TVP of diesel fuel is below the applicability thresholds. 4) Submerged fill: Filling of a storage tank in a way that causes the product to enter the vessel below the liquid level. This greatly reduces turbulence and therefore reduces the outflow of vapor into the atmosphere from evaporative losses during filling. 5) Tank shell color: Emissions from above ground fixed roof tanks are a result of evaporative losses during storage (breathing/standing losses) and evaporative losses during filling and emptying operations (working losses). Emissions from floating roof tanks are the sum of withdrawal losses and standing storage losses. Withdrawal losses occur as the liquid level, and thus the floating roof, is lowered. Some liquid remains on the inner tank wall surface and evaporates. For an internal floating roof tank that has a column supported fixed roof, some liquid also clings to the columns and evaporates. Evaporative loss occurs until the tank is filled and the exposed surfaces are again covered. Standing storage losses from floating roof tanks include rim seal and deck fitting losses, and for internal floating roof tanks also include deck seam losses for constructions other than welded decks. Other potential standing storage loss mechanisms include breathing losses as a result of temperature and pressure changes. Rim seal losses can occur through many complex mechanisms, but for external floating roof tanks, the majority of rim seal vapor losses have been found to be wind induced. Breathing / standing losses for above ground storage tanks (both fixed roof and floating roof) are Attachment 2: BACT Determination minimized when tank color is light in nature (white, beige/sandstone or aluminum) thereby reducing solar absorptance. Based on the review of control technologies considered BACT for diesel fuel storage tanks, Hill AFB has determined the following meets BACT requirements for the new 40,000-gallon above ground fuel storage tanks: 1) Low vapor pressure fuel 2) Good design and operating practices 3) Fixed roof tank 4) Uninsulated exterior surfaces exposed to the sun will be white, beige/sandstone, aluminum or other Department of Defense mandated color 5) Submerged fill