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Home My WebLink AboutDAQ-2024-007694DAQE-AN130590007-24 {{$d1 }} Randy Wyness South Valley Water Reclamation Facility 7495 South 1300 West West Jordan, UT 84084 rwyness@svwater.com Dear Mr. Wyness: Re: Approval Order: Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Project Number: N130590007 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on February 2, 2024. South Valley Water Reclamation Facility must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is Christine Bodell, who can be contacted at (385) 290-2690 or cbodell@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:CB:jg cc: Salt Lake County Health Department Salt Lake City, UT -4820 Telephone (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 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-AN130590007-24 Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Prepared By Christine Bodell, Engineer (385) 290-2690 cbodell@utah.gov Issued to South Valley Water Reclamation Facility - Wastewater Treatment Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director 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.................................................................................................................. 4 SUMMARY OF EMISSIONS .................................................................................................... 4 SECTION I: GENERAL PROVISIONS .................................................................................... 4 SECTION II: PERMITTED EQUIPMENT .............................................................................. 5 SECTION II: SPECIAL PROVISIONS ..................................................................................... 6 PERMIT HISTORY ..................................................................................................................... 7 ACRONYMS ................................................................................................................................. 8 DAQE-AN130590007-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name South Valley Water Reclamation Facility South Valley Water Reclamation Facility - Wastewater Treatment Plant Mailing Address Physical Address 7495 South 1300 West 7495 South 1300 West West Jordan, UT 84084 West Jordan, UT 84084 Source Contact UTM Coordinates Name: Randy Wyness 421,415 m Easting Phone: (801) 566-7711 4,496,442 m Northing Email: rwyness@svwater.com Datum NAD83 UTM Zone 12 SIC code 4952 (Sewerage Systems) SOURCE INFORMATION General Description South Valley Water Reclamation Facility (SVWRF) operates a 50 million gallon per day wastewater treatment plant in West Jordan, Salt Lake County. SVWRF uses various natural gas-fired boilers that provide steam and heat to the Administration Building, the Solids Processing Building, and the Headworks Building. Two (2) diesel-fired-engine generators are used exclusively as stand-by units. NSR Classification Minor Modification at Minor Source Source Classification Located in Southern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA, Salt Lake County SO2 NAA Salt Lake County Airs Source Size: B Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Dc: Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines MACT (Part 63), A: General Provisions MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines DAQE-AN130590007-24 Page 4 Project Description SVWRF has requested that the thermal oxidizer methane limits and associated recordkeeping and monitoring requirements be removed from the AO (Equipment ID II.A.3 and Conditions II.B.2.b-II.B.2.d.1 in AO DAQE-AN130590006-23). The methane limit is not applicable to the operations at the SVWRF Wastewater Treatment Plant and was carried over from the original 2006 AO. The air stream that the thermal oxidizers treat does not contain methane, and that methane is not produced as part of any SVWRF treatment process. Therefore, the methane limit conditions are not necessary. 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) CO2 Equivalent 0 25321.00 Carbon Monoxide 0 32.28 Nitrogen Oxides 0 12.30 Particulate Matter - PM10 0 1.69 Particulate Matter - PM2.5 0 1.69 Sulfur Dioxide 0 0.13 Volatile Organic Compounds 0 1.30 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Generic HAPs (CAS #GHAPS) 0 40 Hexane (CAS #110543) 0 740 Change (TPY) Total (TPY) Total HAPs 0 0.39 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] 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 two-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 two (2) years. [R307-401-8] DAQE-AN130590007-24 Page 5 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] SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Wastewater Treatment Plant II.A.2 Two (2) Boilers Rating: 14.3 MMBtu/hr Fuel: Natural Gas Control: Low-NOx NSPS Applicability: 40 CFR 60 Subpart Dc II.A.3 Two (2) Thermal Oxidizers Rating: 2.5 MMBtu/hr Fuel: Natural Gas *Used for odor control of dewatered biomass waste stream II.A.4 Two (2) Storage Silos Control: Bin Vents and Cartridge Filters II.A.5 Various Boilers/Heaters Ratings: <5 MMBtu/hr Fuel: Natural Gas *For informational purposes only II.A.6 One (1) Emergency Engine Generator Rating: 2,875 HP (2,145 kW) Fuel: Diesel Installed: Pre-2006 MACT Applicability: 40 CFR 63 Subpart ZZZZ DAQE-AN130590007-24 Page 6 II.A.7 One (1) Emergency Engine Generator Rating: 2,220 HP (1,352 kW) Fuel: Diesel Tier: Two (2) Manufactured: 2021 NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Opacity Requirements II.B.1.a The owner/operator shall not allow visible emissions to exceed the following: A. All bin vents and baghouse - 10% opacity. B. All-natural gas combustion exhaust points - 10% opacity. C. All diesel engines - 20% opacity. D. Haul Roads - 20% opacity. E. All other points - 20% opacity. [R307-401-8] II.B.1.a.1 Opacity observations of visible emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8] II.B.1.a.2 Visible emission determinations for fugitive dust from haul roads and operational areas shall use procedures similar to Method 9. The normal requirement for observations to be made at 15-second intervals over a six-minute period, however, shall not apply. Visible emissions shall be measured at the densest point of the plume but at a point not less than one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-401-8] II.B.2 Natural Gas-Fired Boilers. Heaters, and Thermal Oxidizer Requirements II.B.2.a The owner/operator shall use only natural gas as a fuel in the boilers, heaters, and thermal oxidizers. [R307-401-8] DAQE-AN130590007-24 Page 7 II.B.3 Diesel-Fired Emergency Engine Generator Requirements II.B.3.a The owner/operator shall not: A. Operate each emergency engine on site for more than 100 hours per rolling 12-month period during non-emergency situations. B. Operate any emergency engine on site before 10:00 am or after 4:00 pm during non-emergency situations. C. Operate more than one (1) emergency engine at a time during non-emergency situations. D. Test each emergency engine for more than 52 times per rolling 12-month period. There is no time limit on the use of the engines during emergencies. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records documenting the operation of each emergency engine shall be kept in a log and shall include the following: A. The date the emergency engine was used. B. The duration of operation in hours. C. The time engine usage begins each day. D. The time engine usage ends each day. E. The reason for the emergency engine usage. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.2 To determine the duration of operation, the owner/operator shall install a non-resettable hour meter for each emergency engine. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.b The owner/operator shall only use diesel fuel (e.g., fuel oil #1, #2, or diesel fuel oil additives) as fuel in each emergency engine. [R307-401-8] II.B.3.b.1 The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less. [R307-401-8] II.B.3.b.2 To demonstrate compliance with the ULSD fuel requirement, the owner/operator shall maintain records of diesel fuel purchase invoices or obtain certification of sulfur content from the diesel fuel supplier. The diesel fuel purchase invoices shall indicate that the diesel fuel meets the ULSD requirements. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN130590006-23 dated August 1, 2023 Is Derived From NOI dated January 30, 2024 DAQE-AN130590007-24 Page 8 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-IN130590007-24 February 22, 2024 Randy Wyness South Valley Water Reclamation Facility 7495 South 1300 West West Jordan, UT 84084 rwyness@svwater.com Dear Mr. Wyness: Re: Intent to Approve: Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Project Number: N130590007 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, Christine Bodell,as well as the DAQE number as shown on the upper right-hand corner of this letter. Christine Bodell, can be reached at (385) 290-2690 or cbodell@utah.gov, if you have any questions. Sincerely, {{$s }} Alan D. Humpherys, Manager New Source Review Section ADH:CB:jg cc: Salt Lake County Health Department Salt Lake City, UT -4820 Telephone (801) 536---4414 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director STATE OF UTAH Department of Environmental Quality Division of Air Quality INTENT TO APPROVE DAQE-IN130590007-24 Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Prepared By Christine Bodell, Engineer (385) 290-2690 cbodell@utah.gov Issued to South Valley Water Reclamation Facility - Wastewater Treatment Plant Issued On February 22, 2024 {{$s }} New Source Review Section Manager Alan D. Humpherys {{#s=Sig_es_:signer1:signature}} 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.................................................................................................................. 4 SUMMARY OF EMISSIONS .................................................................................................... 4 PUBLIC NOTICE STATEMENT............................................................................................... 4 SECTION I: GENERAL PROVISIONS .................................................................................... 5 SECTION II: PERMITTED EQUIPMENT .............................................................................. 5 SECTION II: SPECIAL PROVISIONS ..................................................................................... 6 PERMIT HISTORY ..................................................................................................................... 8 ACRONYMS ................................................................................................................................. 9 DAQE-IN130590007-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name South Valley Water Reclamation Facility South Valley Water Reclamation Facility - Wastewater Treatment Plant Mailing Address Physical Address 7495 South 1300 West 7495 South 1300 West West Jordan, UT 84084 West Jordan, UT 84084 Source Contact UTM Coordinates Name: Randy Wyness 421,415 m Easting Phone: (801) 566-7711 4,496,442 m Northing Email: rwyness@svwater.com Datum NAD83 UTM Zone 12 SIC code 4952 (Sewerage Systems) SOURCE INFORMATION General Description South Valley Water Reclamation Facility (SVWRF) operates a 50 million gallon per day wastewater treatment plant in West Jordon, Salt Lake County. SVWRF uses various natural gas-fired boilers that provide steam and heat to the Administration Building, Solids Processing Building, and the Headworks Building. Two (2) diesel fired-engine generators are used exclusively as stand-by units. NSR Classification Minor Modification at Minor Source Source Classification Located in Southern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA, Salt Lake County SO2 NAA Salt Lake County Airs Source Size: B Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Dc: Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines MACT (Part 63), A: General Provisions MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines DAQE-IN130590007-24 Page 4 Project Description SVWRF has requested that the thermal oxidizer methane limits and associated recordkeeping and monitoring requirements be removed from the AO (Equipment ID II.A.3 and Conditions II.B.2.b- II.B.2.d.1 in AO DAQE-AN130590006-23). The methane limit is not applicable to the operations at the SVWRF Wastewater Treatment Plant and were carried over from the original 2006 AO. The air stream that the thermal oxidizers treat does not contain methane, and that methane is not produced as part of any SVWRF treatment process. Therefore, the methane limit conditions are not necessary. 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) CO2 Equivalent 0 25321.00 Carbon Monoxide 0 32.28 Nitrogen Oxides 0 12.30 Particulate Matter - PM10 0 1.69 Particulate Matter - PM2.5 0 1.69 Sulfur Dioxide 0 0.13 Volatile Organic Compounds 0 1.30 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Generic HAPs (CAS #GHAPS) 0 40 Hexane (CAS #110543) 0 740 Change (TPY) Total (TPY) Total HAPs 0 0.39 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 Salt Lake Tribune and Deseret News on February 25, 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-IN130590007-24 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 two-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 two (2) 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] 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 Wastewater Treatment Plant II.A.2 Two (2) Boilers Rating: 14.3 MMBtu/hr Fuel: Natural Gas Control: Low-NOx NSPS Applicability: 40 CFR 60 Subpart Dc DAQE-IN130590007-24 Page 6 II.A.3 Two (2) Thermal Oxidizers Rating: 2.5 MMBtu/hr Fuel: Natural Gas *Used for odor control of dewatered biomass waste stream II.A.4 Two (2) Storage Silos Control: Bin Vents and Cartridge Filters II.A.5 Various Boilers/Heaters Ratings: <5 MMBtu/hr Fuel: Natural Gas *For informational purposes only II.A.6 One (1) Emergency Engine Generator Rating: 2,875 HP (2,145 kW) Fuel: Diesel Installed: Pre-2006 MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.7 One (1) Emergency Engine Generator Rating: 2,220 HP (1,352 kW) Fuel: Diesel Tier: 2 Manufactured: 2021 NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ 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 Opacity Requirements II.B.1.a The owner/operator shall not allow visible emissions to exceed the following: A. All bin vents and baghouse - 10% opacity B. All-natural gas combustion exhaust points - 10% opacity C. All diesel engines - 20% opacity D. Haul Roads - 20% opacity E. All other points - 20% opacity. [R307-401-8] DAQE-IN130590007-24 Page 7 II.B.1.a.1 Opacity observations of visible emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8] II.B.1.a.2 Visible emission determinations for fugitive dust from haul roads and operational areas shall use procedures similar to Method 9. The normal requirement for observations to be made at 15-second intervals over a six-minute period, however, shall not apply. Visible emissions shall be measured at the densest point of the plume but at a point not less than one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-401-8] II.B.2 Natural Gas-Fired Boilers. Heaters, and Thermal Oxidizer Requirements II.B.2.a The owner/operator shall use only natural gas as a fuel in the boilers, heaters, and thermal oxidizers. [R307-401-8] II.B.3 Diesel-Fired Emergency Engine Generator Requirements II.B.3.a The owner/operator shall not: A. Operate each emergency engine on site for more than 100 hours per rolling 12-month period during non-emergency situations B. Operate any emergency engine on site before 10:00 am or after 4:00 pm during non-emergency situations C. Operate more than one (1) emergency engine at a time during non-emergency situations D. Test each emergency engine for more than 52 times per rolling 12-month period. There is no time limit on the use of the engines during emergencies. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records documenting the operation of each emergency engine shall be kept in a log and shall include the following: A. The date the emergency engine was used B. The duration of operation in hours C. The time engine usage begins each day D. The time engine usage ends each day E. The reason for the emergency engine usage. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.2 To determine the duration of operation, the owner/operator shall install a non-resettable hour meter for each emergency engine. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.b The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as fuel in each emergency engine. [R307-401-8] II.B.3.b.1 The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less. [R307-401-8] DAQE-IN130590007-24 Page 8 II.B.3.b.2 To demonstrate compliance with the ULSD fuel requirement, the owner/operator shall maintain records of diesel fuel purchase invoices or obtain certification of sulfur content from the diesel fuel supplier. The diesel fuel purchase invoices shall indicate that the diesel fuel meets the ULSD requirements. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN130590006-23 dated August 1, 2023 Is Derived From NOI dated January 30, 2024 DAQE-IN130590007-24 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-NN130590007-24 February 22, 2024 Salt Lake Tribune and Deseret News Legal Advertising Dept. P.O. Box 704055 West Valley City, UT 84170 Acct #9001399880 RE: Legal Notice of Intent to Approve This letter will confirm the authorization to publish the attached NOTICE in the Salt Lake Tribune and Deseret News on February 25, 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: Salt Lake County cc:Wasatch Front Regional Council -4820 Telephone (801) 536--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-NN130590007-24 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: South Valley Water Reclamation Facility Location: South Valley Water Reclamation Facility - Wastewater Treatment Plant 7495 South 1300 West, West Jordan, UT Project Description: South Valley Water Reclamation Facility (SVWRF) operates a 50 million gallon per day wastewater treatment plant in West Jordon, Salt Lake County. SVWRF uses various natural gas-fired boilers that provide steam and heat to the Administration Building, Solids Processing Building, and the Headworks Building. Two (2) diesel fired-engine generators are used exclusively as stand-by units. SVWRF has requested that the thermal oxidizer methane limits and associated recordkeeping and monitoring requirements be removed from the Approval Order (Equipment ID II.A.3 and Conditions II.B.2.b-II.B.2.d.1 in Approval Order DAQE-AN130590006-23). The methane limit is not applicable to the operations at the SVWRF Wastewater Treatment Plant and were carried over from the original 2006 Approval Order. The air stream that the thermal oxidizers treat does not contain methane, and that methane is not produced as part of any SVWRF treatment process. Therefore, the methane limit conditions are not necessary. 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 26, 2024 will be considered in making the final decision on the approval/disapproval of the proposed project. Email comments will also be accepted at cbodell@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 25, 2024 {{#s=Sig_es_:signer1:signature}} DAQE- RN130590007 February 19, 2024 Randy Wyness South Valley Water Reclamation Facility 7495 South 1300 West West Jordan, UT 84084 rwyness@svwater.com Dear Randy Wyness, Re: Engineer Review: Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Project Number: N130590007 The DAQ requests a company representative review and sign the attached Engineer Review (ER). This ER identifies all applicable elements of the New Source Review permitting program. South Valley Water Reclamation Facility should complete this review within 10 business days of receipt. South Valley Water Reclamation Facility should contact Christine Bodell at (385) 290-2690 if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Christine Bodell at cbodell@utah.gov the signed cover letter. Upon receipt of the signed cover letter, the DAQ will prepare an ITA for a 30-day public comment period. At the completion of the comment period, the DAQ will address any comments and will prepare an Approval Order (AO) for signature by the DAQ Director. If South Valley Water Reclamation Facility does not respond to this letter within 10 business days,the project will move forward without source concurrence. If South Valley Water Reclamation Facility has concerns that cannot be resolved and the project becomes stagnant, 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 N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 1 UTAH DIVISION OF AIR QUALITY ENGINEER REVIEW SOURCE INFORMATION Project Number N130590007 Owner Name South Valley Water Reclamation Facility Mailing Address 7495 South 1300 West West Jordan, UT, 84084 Source Name South Valley Water Reclamation Facility- Wastewater Treatment Plant Source Location 7495 South 1300 West West Jordan, UT 84084 UTM Projection 421,415 m Easting, 4,496,442 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 4952 (Sewerage Systems) Source Contact Randy Wyness Phone Number (801) 566-7711 Email rwyness@svwater.com Billing Contact Randy Wyness Phone Number (801)566-7711 Email rwyness@svwater.com Project Engineer Christine Bodell, Engineer Phone Number (385) 290-2690 Email cbodell@utah.gov Notice of Intent (NOI) Submitted February 2, 2024 Date of Accepted Application February 5, 2024 Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 2 SOURCE DESCRIPTION General Description South Valley Water Reclamation Facility (SVWRF) operates a 50 million gallon per day wastewater treatment plant in West Jordon, Salt Lake County. SVWRF uses various natural gas- fired boilers that provide steam and heat to the Administration Building, Solids Processing Building, and the Headworks Building. Two (2) diesel fired-engine generators are used exclusively as stand-by units. NSR Classification: Minor Modification at Minor Source Source Classification Located in Southern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA, Salt Lake County SO2 NAA Salt Lake County Airs Source Size: B Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Dc: Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines MACT (Part 63), A: General Provisions MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines Project Proposal Minor Modification to Approval Order DAQE-AN130590006-23 to Remove the Thermal Oxidizer Methane Limit Project Description SVWRF has requested that the thermal oxidizer methane limits and associated recordkeeping and monitoring requirements be removed from the AO (Equipment ID II.A.3 and Conditions II.B.2.b- II.B.2.d.1 in AO DAQE-AN130590006-23). The methane limit is not applicable to the operations at the SVWRF Wastewater Treatment Plant and were carried over from the original 2006 AO. The air stream that the thermal oxidizers treat does not contain methane, and that methane is not produced as part of any SVWRF treatment process. Therefore, the methane limit conditions are not necessary. EMISSION IMPACT ANALYSIS The criteria pollutant and HAP emissions are not increasing. Therefore, modeling is not required. [Last updated February 5, 2024] Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 3 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) CO2 Equivalent 0 25321.00 Carbon Monoxide 0 32.28 Nitrogen Oxides 0 12.30 Particulate Matter - PM10 0 1.69 Particulate Matter - PM2.5 0 1.69 Sulfur Dioxide 0 0.13 Volatile Organic Compounds 0 1.30 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Generic HAPs (CAS #GHAPS) 0 40 Hexane (CAS #110543) 0 740 Change (TPY) Total (TPY) Total HAPs 0 0.39 Note: Change in emissions indicates the difference between previous AO and proposed modification. Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 4 Review of BACT for New/Modified Emission Units 1. BACT review regarding Removal of Thermal Oxidizer Methane Limit SVWRF has requested to have the thermal oxidizer methane limit and associated recordkeeping and monitoring requirements removed (Conditions II.B.2.b - II.B.2.d.1 in AO DAQE- AN130590006-23). The foul air streams from an aerobic treatment process does not contain methane; therefore, these conditions are unnecessary and are removed from the AO. There are very small methane emissions from incomplete combustion of natural gas. Such methane emissions were calculated using emission factor from AP-42 Chapter 1.4 during a 2023 modification. Therefore, methane and its CO2 equivalent will not change. Further, SVWRF is not adding any new equipment. Removal of inapplicable permit requirements does not require a BACT analysis. [Last updated February 19, 2024] 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 two-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 two (2) 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] Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 5 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] 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 Wastewater Treatment Plant II.A.2 Two (2) Boilers Rating: 14.3 MMBtu/hr Fuel: Natural Gas Control: Low-NOx NSPS Applicability: 40 CFR 60 Subpart Dc II.A.3 Two (2) Thermal Oxidizers Rating: 2.5 MMBtu/hr Fuel: Natural Gas *Used for odor control of dewatered biomass waste stream II.A.4 Two (2) Storage Silos Control: Bin Vents and Cartridge Filters II.A.5 Various Boilers/Heaters Ratings: <5 MMBtu/hr Fuel: Natural Gas *For informational purposes only II.A.6 One (1) Emergency Engine Generator Rating: 2,875 HP (2,145 kW) Fuel: Diesel Installed: Pre-2006 MACT Applicability: 40 CFR 63 Subpart ZZZZ Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 6 II.A.7 One (1) Emergency Engine Generator Rating: 2,220 HP (1,352 kW) Fuel: Diesel Tier: 2 Manufactured: 2021 NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ 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 Opacity Requirements II.B.1.a The owner/operator shall not allow visible emissions to exceed the following: A. All bin vents and baghouse - 10% opacity B. All natural gas combustion exhaust points - 10% opacity C. All diesel engines - 20% opacity D. Haul Roads - 20% opacity E. All other points - 20% opacity [R307-401-8] II.B.1.a.1 Opacity observations of visible emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8] II.B.1.a.2 Visible emission determinations for fugitive dust from haul roads and operational areas shall use procedures similar to Method 9. The normal requirement for observations to be made at 15-second intervals over a six-minute period, however, shall not apply. Visible emissions shall be measured at the densest point of the plume but at a point not less than one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-401-8] II.B.2 Natural Gas-Fired Boilers. Heaters, and Thermal Oxidizer Requirements II.B.2.a The owner/operator shall use only natural gas as a fuel in the boilers, heaters, and thermal oxidizers. [R307-401-8] II.B.3 Diesel-Fired Emergency Engine Generator Requirements Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 7 II.B.3.a NEW The owner/operator shall not: A. Operate each emergency engine on site for more than 100 hours per rolling 12-month period during non-emergency situations B. Operate any emergency engine on site before 10:00 am or after 4:00 pm during non-emergency situations C. Operate more than one (1) emergency engine at a time during non-emergency situations D. Test each emergency engine for more than 52 times per rolling 12-month period There is no time limit on the use of the engines during emergencies. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records documenting the operation of each emergency engine shall be kept in a log and shall include the following: A. The date the emergency engine was used B. The duration of operation in hours C. The time engine usage begins each day D. The time engine usage ends each day E. The reason for the emergency engine usage [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.a.2 To determine the duration of operation, the owner/operator shall install a non-resettable hour meter for each emergency engine. [40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.3.b The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as fuel in each emergency engine. [R307-401-8] II.B.3.b.1 The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less. [R307-401-8] II.B.3.b.2 To demonstrate compliance with the ULSD fuel requirement, the owner/operator shall maintain records of diesel fuel purchase invoices or obtain certification of sulfur content from the diesel fuel supplier. The diesel fuel purchase invoices shall indicate that the diesel fuel meets the ULSD requirements. [R307-401-8] Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 8 PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the following documents: Supersedes Approval Order DAQE-AN130590006-23 dated August 1, 2023 Is Derived From NOI dated January 30, 2024 REVIEWER COMMENTS 1.Comment regarding Removal of Thermal Oxidizer Methane Limits: The original Approval Order for the Waste Water Treatment Plant was issued to SVWRF in 2006. The reasoning for including a thermal oxidizer methane limit of 20 ppm in the 2006 AO was not specified. This methane limit was automatically carried over into AO DAQE-AN130590006-23, issued August 1, 2023. To ensure enforceability, additional monitoring and record keeping requirements for the methane limit were added to the 2023 AO (See Conditions II.B.2.b-II.B.2.d.1). SVWRF has requested to have the methane limit and associated conditions removed from the current AO. SVWRF has revealed that the air streams that the thermal oxidizers treat do not contain methane, and that methane is not produced as part of any SVWRF treatment process. Additionally, methane emission estimates for the thermal oxidizers are based on AP-42, Section 1.4, Natural Gas Combustion, Table 1.4-2. The estimates are not based on a 20-ppm limit. Therefore, the current methane PTE is correct and an accurate representation of the methane emissions from the Plant. Therefore, the CO2 Equivalent PTE is not is changing. This project is classified as a modification because removing the 20-ppm methane limit may impact hourly emissions. [Last updated February 5, 2024] 2. Comment regarding Federal Subpart Applicability: NSPS Subpart Dc 40 CFR 60 (NSPS) Subpart Dc (Standards of Performance for Small Industrial-Commercial- Institutional Steam Generating Units) applies to each steam generating unit for which construction, modification, or reconstruction is commenced after June 9, 1989 and that has a maximum design heat input capacity of 100 million British thermal units per hour (MMBtu/h) or less, but greater than or equal to 2.9 MW (10 MMBtu/h). Subpart Dc is applicable to two (2) boilers with a rating of 14.3 MMBtu/hr. NSPS Subpart IIII 40 CFR 60 (NSPS) Subpart IIII (Standards of Performance for Stationary Compression Ignition Internal Combustion Engines) applies to owners and operators of stationary CI ICE that commence construction after July 11, 2005, where the stationary CI ICE is manufactured after April 1, 2006. The production and installation date of the 2,875 HP (2,145 kW) emergency generator is circa 2000. Therefore, NSPS Subpart IIII does not apply to this stationary CI ICE. However, the production date of the 2,220 HP (1352 kW) generator is post April 1, 2006. Therefore, NSPS Subpart IIII applies. MACT Subpart VVV 40 CFR 63 Subpart VVV (National Emission Standards for Hazardous Air Pollutants: Publicly Owned Treatment Works) applies to owners/operators of publicly owned treatment works (POTW) that includes an affected source (§ 63.1595), where the affected source is located at a Group 2 Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 9 POTW which is a major source of HAP emissions, or at any Group 1 POTW regardless of whether or not it is a major source of HAP. The SVWR Facility is a Group 2 POTW, but is not located at a major source of HAPs emissions. Therefore, MACT Subpart VVV does not apply to the SVWR Facility. MACT Subpart ZZZZ 40 CFR 63 Subpart ZZZZ (National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines) is applicable to owners/operators of stationary RICE at a major or area sources of HAP emissions. MACT Subpart ZZZZ applies to the SVWR Facility as the emergency engine generators are CI ICE. The emergency diesel generators will meet Subpart ZZZZ by meeting 40 CFR Part 60, Subpart IIII as the SVWR Facility is an area source of HAP emissions. [Last updated February 7, 2024] 3.Comment regarding Title V Applicability: Title V of the 1990 Clean Air Act (Title V) applies to the following: 1. Any major source 2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act, Standards of Performance for New Stationary Sources; 3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous Air Pollutants. 4. Any Title IV affected source. This facility is not a major source and is not a Title IV source. The facility is not subject to 40 CFR 61 (NESHAP) regulations. This facility is subject to 40 CFR 60 (NSPS) Subparts A, Dc, and IIII and 40 CFR 63 (MACT) Subparts A and ZZZZ. NSPS Subpart IIII and MACT Subpart ZZZZ each specifically exempt sources from the obligation to obtain a Title V permit, if the sources are not otherwise required for a Title V permit. NSPS Subpart Dc does not specifically exempt the facility from the obligation to obtain a Title V permit. However, the facility is only subject to record-keeping requirements under NSPS Subpart Dc, and is not subject to a standard or limitation. Therefore, this facility is not a Title V source. [Last updated February 7, 2024] Engineer Review N130590007: South Valley Water Reclamation Facility- Wastewater Treatment Plant February 19, 2024 Page 10 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 January 30, 2024 Christin Bodell, Utah Department of Environmental Quality Division of Air Quality (385) 290-2690 cbodell@utah.gov Dear Ms. Bodell, RE: Request for Administrative Amendment to Approval Order DAQE-AN3059002-06 Project Number: N130590006 DAQE-AN130590006-23 This request to remove the following conditions from the subject AO. The basis of this request is described hereafter. II.B.2.b The owner/operator shall not exceed a methane concentration of 20 ppmv in the exhaust gas of each thermal oxidizer at all times. [R307-401-8] II.B.2.b.1 The owner/operator shall record each thermal oxidizer exhaust gas methane concentration at least per operating day while each thermal oxidizer is operating. [R307-401-8] II.B.2.b.2 The owner/operator shall maintain the following records of the exhaust gas methane concentration for each thermal oxidizer: A. Unit identification; B. Daily exhaust gas methane concentration C. Date of reading. [R307-401-8] II.B.2.c The owner/operator shall monitor the methane concentration in the thermal oxidizer exhaust gas with equipment located such that an inspector/operator can safely read the output at any time. [R307-401-8] II.B.2.d At least once every 12 months, the owner/operator shall calibrate the methane monitoring equipment in accordance with the manufacturer's instructions or replace the methane monitoring equipment. [R307-401-8] II.B.2.d.1 The owner/operator shall maintain records of the methane monitoring equipment calibrations and replacements. [R307-401-8] The South Valley Water Reclamation Facility (SVWRF) is an aerobic activated sludge treatment facility that utilizes ambient air to oxygenate mixed liquor inside our secondary treatment basins. Wasted biomass is then dewatered and a portion of the dewatered biomass is dried in the Thermal Drying facility. The Thermal Drying Facility is where the remaining moisture in the dewatered biomass is evaporated away using heat generated from the Steam Generators covered in this AO. The evaporated air is moisture laden and odorous and hence called foul air. The foul air stream is removed from the drying equipment and blown to the Thermal Oxidizers where it is burned to reduce the concentrations of H2S and mercaptans (sulphur containing compounds) which are the source of odors. This oxidation process does not produce methane. In fact, the SVWRF does not produce methane as a part of our treatment processes. The SVWRF’s emissions from the thermal oxidizers have not changed, nor will they change. With that said, this request for administrative amendment is being done to correct what we believe was an unnecessary requirement from the original AO issued in 2006 and most recently revised in 2023 with respect to a methane as pointed shown herein. SVWRF will be paying the $500 fee for this request online.Am Sincerely, Taigon Worthen, P.E. Assistant GM, Facility Engineer & Interim IT Director cc: Lee Rawlings, SVWRF Randy Wyness, SVWRF