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Home My WebLink AboutDAQ-2024-004690 DAQE-AN103130047-24 {{$d1 }} Colby Roberts Graymont Western US Incorporated 585 West Southridge Way Sandy, UT 84070 nstettler@graymont.com Dear Mr. Roberts: Re: Approval Order: Enhanced Approval Order Change to DAQE-AN103130044-21 to Correct Fugitive Dust Conditions Project Number: N103130047 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on June 14, 2023. Graymont Western US Incorporated must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is John Jenks, who can be contacted at (385) 306-6510 or jjenks@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:JJ:jg cc: Central Utah 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 January 29, 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-AN103130047-24 Enhanced Approval Order Change to DAQE-AN103130044-21 to Correct Fugitive Dust Conditions Prepared By John Jenks, Engineer (385) 306-6510 jjenks@utah.gov Issued to Graymont Western US Incorporated - Cricket Mountain Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director Division of Air Quality January 29, 2024 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 .................................................................................... 5 SECTION II: PERMITTED EQUIPMENT .............................................................................. 6 SECTION II: SPECIAL PROVISIONS ................................................................................... 13 PERMIT HISTORY ................................................................................................................... 26 ACRONYMS ............................................................................................................................... 27 DAQE-AN103130047-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Graymont Western US Incorporated Graymont Western US Incorporated - Cricket Mountain Plant Mailing Address Physical Address 585 West Southridge Way PO Box 669 Sandy, UT 84070 32 Miles Southwest of Delta, Utah; Highway 257 Delta (Millard), UT 84624 Source Contact UTM Coordinates Name: Nate Stettler 343,100 m Easting Phone: (801) 598-8076 4,311,010 m Northing Email: nstettler@graymont.com Datum NAD27 UTM Zone 12 SIC code 1422 (Limestone, Crushed & Broken) SOURCE INFORMATION General Description Graymont Western US Incorporated (Graymont) operates the Cricket Mountain Lime Plant in Millard County. The Cricket Mountain Lime Plant consists of quarries and a lime processing plant, which includes five (5) rotary lime kilns (Kilns 1 through 5). The rotary kilns are used to convert crushed limestone ore into quicklime. The products produced for resale are lime, limestone, and kiln dust. The kilns operate on pet coke and coal. Sources of emissions at this source include mining, limestone processing, rotary lime kilns, post-kiln lime handling, and truck & loadout facilities. NSR Classification Minor Modification at Major Source Source Classification Located in Attainment Area Millard County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Y: Standards of Performance for Coal Preparation and Processing Plants NSPS (Part 60), HH: Standards of Performance for Lime Manufacturing Plants NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants DAQE-AN103130047-24 Page 4 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 MACT (Part 63), AAAAA: National Emission Standards for Hazardous Air Pollutants for Lime Manufacturing Plants Title V (Part 70) Major Source Project Description Graymont submitted a request for updating the chemical stabilizer dust control application. Specifically, that the frequency of application be reduced from a schedule of three (3) times a year to two (2) times a year. After review, UDAQ determined that the listing of dust control requirements in the AO is redundant. The requirement to maintain a dust control plan is sufficient for the minimization of fugitive dust. With the removal of the listed conditions in the AO, Graymont is free to modify the fugitive dust control plan to incorporate the change in application frequency. No change in equipment, processes or associated emissions will occur. 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 887964.00 Carbon Monoxide 0 7821.19 Nitrogen Oxides 0 3883.85 Particulate Matter - PM10 0 611.87 Particulate Matter - PM2.5 0 610.78 Sulfur Oxides 0 760.29 Volatile Organic Compounds 0 117.84 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Acetaldehyde (CAS #75070) 0 1963 Acrolein (CAS #107028) 0 1 Arsenic (TSP) (CAS #7440382) 0 88 Benzene (Including Benzene From Gasoline) (CAS #71432) 0 7734 Cadmium (CAS #7440439) 0 58 Chlorine (CAS #7782505) 0 1078 Chromium Compounds (CAS #CMJ500) 0 1214 Cobalt (TSP) (CAS #7440484) 0 1154 Ethyl Benzene (CAS #100414) 0 488 Formaldehyde (CAS #50000) 0 1612 Hexane (CAS #110543) 0 2566 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 44400 Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 156 DAQE-AN103130047-24 Page 5 Lead (CAS #7439921) 0 1204 Manganese (TSP) (CAS #7439965) 0 546 Mercury (TSP) (CAS #7439976) 0 64 Nickel (CAS #7440020) 0 422 Selenium & Compounds (CAS #253) 0 402 Toluene (CAS #108883) 0 2678 Xylenes (Isomers And Mixture) (CAS #1330207) 0 2562 Change (TPY) Total (TPY) Total HAPs 0 35.19 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 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] DAQE-AN103130047-24 Page 6 SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Lime Manufacturing Plant [All equipment designation numbers are those used by Graymont Western U.S. Incorporated] II.A.2 K-1 Kiln Rotary Lime Kiln #1 rated at 600 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-85) rated at an exhaust gas flow rate 54,000 scfm and an Air to Cloth (A/C) ratio of 3.26:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.3 K-2 Kiln Rotary Lime Kiln #2 rated at 600 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-275) rated at an exhaust gas flow rate of 48,000 scfm and an A/C ratio of 2.9:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.4 K-3 Kiln Rotary Lime Kiln #3 rated at 840 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-375) rated at an exhaust gas flow rate of 55,000 scfm and a A/C ratio of 2.49:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.5 K-4 Kiln Rotary Lime Kiln #4 rated at 1266 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-485) rated at an exhaust gas flow rate of 100,000 scfm and an A/C ratio of 5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.6 K-5 Kiln Rotary Lime Kiln #5 rated at 1400 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-585) rated at an exhaust gas flow rate of 103,000 scfm and an A/C ratio of 3.5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.7 KDE-1 Kiln Drive Engine Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.8 KDE-2 Kiln Drive Engine Rating: 45 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.9 KDE-3 Kiln Drive Engine Rating: 55 hp Fuel: Gasoline MACT Applicability: 40 CFR 63 Subpart ZZZZ DAQE-AN103130047-24 Page 7 II.A.10 KDE-4 Kiln Drive Engine Rating: 65 hp Fuel: Diesel Manufacture Date: Pre 12/19/2002 MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.11 KDE-5 Kiln Drive Engine Rating: 173.5 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.12 D-91 Coal Silo Baghouse For Kiln #1 Exhaust gas flow rate: 1,000 scfm II.A.13 D-94 Coal Silo Baghouse For Kiln #2 Exhaust gas flow rate: 1,000 scfm II.A.14 D-391 Coal Silo Baghouse For Kiln #3 Exhaust gas flow rate: 1,000 scfm II.A.15 D-491 Coal Silo Baghouse For Kiln #4 Exhaust gas flow rate: 1,500 scfm II.A.16 D-591 Coal Silo Baghouse For Kiln #5 Exhaust gas flow rate: 1,000 acfm II.A.17 D-331 Product Baghouse For Kiln #1, #2 loadout area and screenhouse dust collector Exhaust gas flow rate: 32,000 scfm II.A.18 D-330 Product Baghouse For Kiln #3 cooler pit dust collector Exhaust gas flow rate: 11,000 scfm II.A.19 D-447 Product Baghouse For Kiln #4 cooler and screenhouse dust collector Exhaust gas flow rate: 18,300 scfm II.A.20 D-463 Product Baghouse For Kiln #4 product loadout and C-463 dust collector Exhaust gas flow rate: 8,300 scfm II.A.21 D-341 Product Baghouse For Silo T-341 Exhaust gas flow rate: 2,000 scfm II.A.22 D-530 Product Baghouse Product handling baghouse #1 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm DAQE-AN103130047-24 Page 8 II.A.23 D-564 Product Baghouse Product handling baghouse #2 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.24 D-547 Product Baghouse Product handling baghouse #3 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.25 D-83 Lime Kiln Dust Silo Baghouse For Kilns #1 and #2 Exhaust gas flow rate: 6,000 scfm II.A.26 D-489 Lime Kiln Dust Silo Baghouse For Kilns #4 lime kiln dust silo Exhaust gas flow rate: 6,000 scfm II.A.27 D-486 Lime Kiln Dust Silo Baghouse For Kiln #4 Exhaust gas flow rate: 4,000 scfm II.A.28 D-466 Lime Kiln Dust Silo Baghouse For lime kiln dust silo Exhaust gas flow rate: 4,000 scfm II.A.29 D-586 Lime Kiln Dust Silo Baghouse For Kiln #5 dust silo Exhaust gas flow rate: 2,500 scfm II.A.30 D-589 Lime Kiln Dust Silo Baghouse For loadout of Kiln #5 dust silo Exhaust gas flow rate: 1,500 scfm II.A.31 T-381 Lime Kiln Dust Silo Maximum Capacity: 300 tons II.A.32 D-381 Lime Kiln Dust Silo Baghouse For 300-ton lime kiln dust silo (T-381) Exhaust gas flow rate: 3,000 scfm II.A.33 T-381 Loadout Spout For 300-ton lime kiln dust silo (T-381) II.A.34 D-382 Loadout Spout (T-381) Baghouse For Loadout Spout (T-381) Exhaust gas flow rate: 2,000 scfm II.A.35 D-333 Product Loadout Baghouse For rail loadout Exhaust gas flow rate: 10,000 scfm II.A.36 D-10 Limestone Ore Preparation Baghouse For stone reclaim screen for Kiln #1 & #2 Exhaust gas flow rate: 8,000 scfm DAQE-AN103130047-24 Page 9 II.A.37 D-310 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #3 Exhaust gas flow rate: 8,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.38 D-414 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #4 Exhaust gas flow rate: 3,100 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.39 D-514 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #5 Exhaust gas flow rate: 4,500 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.40 D-1 Limestone Ore Processing Baghouse For quarry crusher & screen Exhaust gas flow rate: 28,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.41 D-503 Conveying System For dust collection for Kiln #5 limestone conveyor transfer points Exhaust flow rate: 2,000 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.42 D-403 Conveying System For stone dump from conveyor 408 & 409 to reclaim pile Exhaust gas flow rate: 2,200 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.43 D-415 Conveying System with Baghouse For limestone dump to Kiln #4 preheater Exhaust gas flow rate: 600 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.44 D-479 Dolomitic Lime Handling System Baghouse Product transfer baghouse to S-471, T-471, T-472, T-473, and T-474. The 435-material handling system consists of two (2) elevators, a vibratory conveyor, a number of belt conveyors, and a mixing screw conveyor Exhaust gas flow rate: 4,300 scfm II.A.45 R-486 Dolomite Crusher Rating: 40 tons/hr II.A.46 N-470 Dolomitic Lime Handling System Recycle Bin II.A.47 Processed Stone Handling (PSH) Operations Operations to transport material from storage piles (fines, small stone, medium stone, large stone [sugar]) to kiln preheaters. Includes bins, bin transfer points, preheater transfer points, and conveyors. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.48 Sugar Stone System System to store, screen and load sugar stones. Includes a hopper (HP-1), screen (S-2), loadout system (203255SSS001), conveyors (C-MISC2), and generator (GEN-1). DAQE-AN103130047-24 Page 10 II.A.49 HP-1 Hopper Sugar Stone System II.A.50 S-2 Screen Sugar Stone System NSPS Applicability: 40 CFR 60 Subpart OOO II.A.51 Loadout Sugar Stone System Rail Loadout II.A.52 C-MISC2 Sugars Stone System Miscellaneous Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO II.A.53 GEN-1 Generator Sugar Stone System Rating: 130.1 hp Fuel: Diesel MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.54 Portable Crusher System (PCS) Includes hopper, crushers (PCS-1), hopper (HP-2), generator (PCS-4), and conveyors. II.A.55 PCS Hopper Feed Hopper II.A.56 PCS-1 Crusher System ICR101: Primary Crusher Capacity: 690 tons/hr ICR102: Secondary Crusher Capacity: 690 tons/hr NSPS Applicability: 40 CFR 60 Subpart OOO II.A.57 PCS-2 Screen/Conveyor Transfer Points Screen and material transfer points to and from conveyor belts. NSPS Applicability: 40 CFR 60 Subpart OOO II.A.58 PCS-3 Conveyor Drop Points Material drop points to the fines and product stockpiles NSPS Applicability: 40 CFR 60 Subpart OOO II.A.59 PCS-4 Generator Portable Crusher System Quantity: three (3) Rating: 740 hp combined Fuel: Diesel II.A.60 PCS Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO II.A.61 D-7122 Limestone Grinding Plant Baghouse For grinding mill, direct-fire heater, material separator Exhaust gas flow rate: 10,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.62 D-7133 Limestone Grinding Plant Baghouse For screen, three (3) bucket elevators, three (3) storage silos Exhaust gas flow rate: 4,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO DAQE-AN103130047-24 Page 11 II.A.63 D-7141 Limestone Grinding Plant Baghouse For truck load-out and rail load-out Exhaust gas flow rate: 3,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.64 C-MISC1 Limestone Grinding Plant Miscellaneous Conveyors II.A.65 D-488 Briquetter and Crusher Baghouse For crusher (R-486), briquetters (BRI-474 and BRI-014), and silo (T-470) Exhaust gas flow rate: 1,700 scfm II.A.66 BRI-474 Briquetter II.A.67 BRI-014 Briquetter II.A.68 C-045 Conveying System Fines Truck Loadout Conveyor - 250 tons/hr II.A.69 C-305 Conveying System Medium and Small Stone Pile Conveyor - 600 tons/hr II.A.70 S-466 Screen Dolomitic Screen II.A.71 C-Coal Handling Miscellaneous Conveyors II.A.72 Feeder-Coal Handling Four (4) Vibratory Feeders II.A.73 PW Portable Pressure Washer Rating: 18 hp Fuel: Gasoline II.A.74 HR-1 Haul Road Quarry to plant and plant to highway. Length: 6 miles II.A.75 HR-2 Haul Road Inside quarry II.A.76 Limestone Fines Product (LFP) Loadout System Includes a screen hopper, screen, screen conveyors, tent storage area, product loadout hopper, product loadout conveyor, and engines (CAT4.4 and V3600-T). II.A.77 LFP - Engines CAT 4.4 Generator Rating: 130 hp Kubota V3600-T Generator Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ DAQE-AN103130047-24 Page 12 II.A.78 LFP-1 Hopper Capacity: 250 ton/hour II.A.79 LFP-2 Screen Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.80 LFP-3 Conveyors Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.81 LFP-4 Storage Tent storage area II.A.82 LFP-5 Hopper Product loadout hopper Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.83 LFP-6 Conveyor Product Loadout Conveyor Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.84 Stationary Pressure Washer Rating: 0.4 MMBtu/hr Fuel: Propane Listed for information purposes only II.A.85 Fuel Storage Tanks Four (4) 10,150-gallon diesel storage tanks One (1) 12,000-gallon diesel storage tank One (1) 2,000-gallon gasoline storage tank One (1) 500-gallon gasoline storage tank DAQE-AN103130047-24 Page 13 SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Sitewide Requirements II.B.1.a The following limits shall not be exceeded: A. For Kilns #1, #2, #3, #4, and #5 collectively: 1) 1,516,250 tons lime per rolling 12-month period 2) 4,706 tons lime per day B. Sugar Stone System 1) 135,000 tons of sugar stone per rolling 12-month period 2) 750 hours of operation for the 130.1 hp generator per rolling 12-month period C. Portable Crushing System 1) 750,000 tons of limestone per rolling 12-month period 2) 4,000 hours of operation per rolling 12-month period D. Truck hauling of stone from the quarry to the plant 1) No more than 108 rounds trips per day (midnight to midnight) 24-hour period E. Limestone Fines Product Loadout Process 1) 200,000 tons of limestone per rolling 12-month period 2) 6,500 hours of operation per rolling 12-month period. [R307-401] II.B.1.a.1 Compliance with the above 12-month production limitations shall be determined on a rolling 12-month total. Calculations for the 12-month production shall be completed within 25 calendar days from the end of the previous month. Records of production shall be kept for all periods when the plant is in operation. Production shall be determined by plant production records, such as scale records or sales receipts. Hours of operation and number of truck trips shall be determined by records of operation. The records shall be kept on a daily basis. [R307-401-8] DAQE-AN103130047-24 Page 14 II.B.1.b Emissions to the atmosphere from the indicated emission point shall not exceed the following rates and concentrations (standardized at 68 oF, 29.92 in Hg) (lbs/tsf = pounds per ton of stone fed): Emission Point: Kiln #1 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 0.020 0.12 PM10 (Filterable + Condensable) 6.0 0.016 SO2 22.4 NOx 90.0 Emission Point: Kiln #2 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 8.23 0.020 0.12 PM10 (Filterable + Condensable) 6.58 0.016 SO2 22.4 NOx 120.0 Emission Point: Kiln #3 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 7.49 0.020 0.10 PM10 (Filterable + Condensable) 7.54 0.016 SO2 27.2 NOx 160.0 Emission Point: Kiln #4 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 17.14 0.020 0.12 PM10 (Filterable + Condensable) 13.7 0.016 SO2 38.4 NOx 200.0 Emission Point: Kiln #5 Baghouse Stack Pollutant lb/hr grain/dscf Other TSP 0.020 0.10 lbs/tsf PM10 (Filterable + Condensable) 11.7 0.016 SO2 59.0 1.01 lb/ton lime NOx 210.0 3.60 lb/ton lime CO 233.0 4.00 lb/ton lime Emission Point: Briquetter and Crusher Baghouse (D-488) Stack Pollutant lb/hr grain/dscf TSP 0.29 0.020 PM10 (Filterable) 0.15 0.010 PM2.5 (Filterable) 0.15 0.010 After the installation of an SO2 CEMS, compliance with the SO2 emission limit will be based on a 3-hour block average. Testing for compliance with the lb/ton lime limits must comply with all stack testing requirements. [R307-401] DAQE-AN103130047-24 Page 15 II.B.1.b.1 Stack testing to show compliance with the emission limitations stated in the above condition shall be performed as specified below: Emission Point Pollutant Status Test Frequency Kiln #1 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #2 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx * + Emission Point Pollutant Status Test Frequency Kiln #3 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #4 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #5 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + CO *** + Emission Point Pollutant Status Test Frequency (D-488) Baghouse Stack TSP *** + PM10 *** + PM2.5 *** + (Filterable) * No Initial Testing was required. The source shall be tested if directed by the Director at any time. ** Initial compliance testing is required. The initial test date shall be performed as soon as possible and in no case later than 180 days after the startup of a new emission source, an existing source without an AO, or the granting of an AO to an existing emission source that has not had an initial compliance test performed. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. *** Initial compliance testing was required and completed. + Test every three (3) years. The Director may require testing at any time. [R307-401] DAQE-AN103130047-24 Page 16 II.B.1.b.2 A. Notification The Director shall be notified at least 60 days prior to conducting any required emission testing for sources subject to 40 CFR 63 Subpart AAAAA. All other sources shall notify the Director at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ when the testing notification is submitted to the Director The source test protocol shall be approved by the Director prior to performing the test(s). The source test protocol shall outline the proposed test methodologies, stack to be tested, and procedures to be used. A pretest conference shall be held, if directed by the Director. B. Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other methods as approved by the Director. An Occupational Safety and Health Administration (OSHA) or Mine Safety and Health Administration (MSHA) approved access shall be provided to the test location C. Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing method acceptable to the Director D. Total Suspended Particulate (TSP) 40 CFR 60, Appendix A, Method 5 or other EPA-approved testing method acceptable to the Director E. PM10 (Filterable + Condensable) For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201, 201a, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA approved method acceptable by the Director. All particulate captured shall be considered PM10 For stacks in which liquid drops are present, methods to eliminate the liquid drops should be explored. If no reasonable method to eliminate the drops exists, then the following methods shall be used: 40 CFR 60, Appendix A, Method 5, 5a, 5d, or 5e as appropriate, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA method as acceptable to the Director. The portion of the front half of the catch considered PM10 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director. F. PM2.5 (Filterable) 40 CFR 60, Appendix A, Method 5; 40 CFR 51, Appendix M, Method 201A or other EPA-approved testing method as acceptable to the Director. If other approved testing methods are used which cannot measure the PM2.5 fraction of the filterable particulate emissions, all of the filterable particulate emissions shall be considered PM2.5. The portion of the front half of the catch considered PM2.5 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director G. Sulfur Dioxide (SO2) 40 CFR 60, Appendix A, Method 6, 6A, 6B, 6C, or other EPA-approved testing method acceptable to the Director H. Nitrogen Oxides (NOx) 40 CFR 60, Appendix A, Method 7, 7A, 7B, 7C, 7D, 7E, or other EPA approved method as acceptable to the Director I. Carbon Monoxide (CO) 40 CFR 60, Appendix A, Method 10, or other EPA approved method as acceptable to the Director. [R307-401] DAQE-AN103130047-24 Page 17 II.B.1.b.3 J. Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods above shall be multiplied by the volumetric flow rate and any necessary conversion factors determined by the Director, to give the results in the specified units of the emission limitation To determine emission rates in units of lbs/ton lime, the emission rate in lbs/hour shall be divided by the tons/hour lime production rate. Lime production rate shall either be a direct measurement or shall be calculated using the following conversion factor: Two (2) tons of limestone feed equates to one (1) ton of lime produced (two (2) tons limestone: one (1) ton lime). K. New Source Operation For a new source/emission point, the production rate during all compliance testing shall be no less than 90% of the production rate listed in this AO. If the maximum AO allowable production rate has not been achieved at the time of the test, the following procedure shall be followed: 1) Testing shall be at no less than 90% of the production rate achieved to date 2) If the test is passed, the new maximum allowable production rate shall be 110% of the tested achieved rate, but not more than the maximum allowable production rate. This new allowable maximum production rate shall remain in effect until successfully tested at a higher rate 3) The owner/operator shall request a higher production rate when necessary. Testing at no less than 90% of the higher rate shall be conducted. A new maximum production rate (110% of the new rate) will then be allowed if the test is successful. This process may be repeated until the maximum AO production rate is achieved. L. Existing Source Operation For the existing kilns, the production rate during all compliance testing shall be no less than 90% of the maximum production achieved in the previous three (3) years M. Reporting The results of stack testing shall be submitted to the Director within 60 days of completion of the testing. Reports shall clearly identify results as compared to permit limits and indicate compliance status. [R307-165, R307-401] DAQE-AN103130047-24 Page 18 II.B.1.c Visible emissions from the following emission points shall not exceed the following opacity values: A. Kilns #1, #2, #3, #4, and #5 15% B. All ancillary silo and storage bin baghouses 10% C. Product baghouses 10 % D. Subpart OOO baghouses 7% E. All non-OOO crushers 15% F. All non-OOO screens 10% G. All non-OOO conveyor transfer points 10% H. Subpart OOO crushers* i. Post-April 22, 2008 12% ii. Pre-April 22, 2008 15% I. Subpart OOO screens* i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% J. Subpart OOO conveyor transfer points* i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% K. All diesel engines 20% L. Conveyor drop points 20% M. PSH operations stack emissions 7% N. PSH operations fugitive emissions 10% O. All other points sources 20% *Opacity limits from 40 CFR 60 Subpart OOO shown as "Post-April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after April 22, 2008, and "Pre-April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after August 31, 1983, but before April 22, 2008. Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. For sources that are subject to NSPS, opacity shall be determined by conducting observations in accordance with 40 CFR 60.11(b) and 40 CFR 60, Appendix A, Method 9. Visible emissions from haul road traffic shall be minimized in accordance with the fugitive dust control plan. [R307-401] DAQE-AN103130047-24 Page 19 II.B.1.c.1 The owner/operator shall make at least one (1) visual opacity survey each quarter for each kiln drive engine. The visual opacity survey shall be performed while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. The individual is not required to be a certified visual emissions observer (VEO). If visible emissions are observed from an emission unit, an opacity determination of that emission unit shall be performed by a certified observer within 24 hours of the initial survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix A, Method 9. The owner/operator shall maintain a log of the visual opacity surveys, opacity determinations, and all data required by 40 CFR 60, Appendix A, Method 9. [R307-401] II.B.2 Fuel Requirements II.B.2.a The owner/operator shall use coal as the primary fuel, except a combination of coal and petroleum coke (pet coke) may be used in Kilns #1 and #5, and propane and fuel oil as a startup fuel in all kilns. Prior to burning petroleum coke in Kilns #1 and #5 or coal with a sulfur content in excess of 1.0 lb/MMBTU in Kilns #1, #2, #3, #4, or #5, an SO2 CEM must be installed, calibrated, and operating on that kiln. [R307-401] II.B.2.b The owner/operator shall use propane, diesel, and used oil in any combination in the direct fire heating system for the limestone grinding plant. [R307-401] II.B.2.c The sulfur content of any coal or any mixture of coals burned shall not exceed 1.0 pounds of sulfur per MMBTU heat input. Sulfur content shall be determined by the owner/operator or the coal supplier using ASTM Method D3174-12(2018), D3176-15, D4239-18e1, D5016-16 or an approved equivalent ASTM Method. If the owner/operator chooses supplier certification, the sulfur content shall be tested quarterly from a composite sample. If the owner/operator chooses to test the sulfur content of the coal, the composite sample shall be tested quarterly from a composite grab sample taken every 24 hours of operation. Records, or supplier furnished certifications, of this testing shall be kept on-site for a period of five (5) years and be provided to the Director upon request. After a SO2 CEMS has been installed, calibrated, and is operating on a kiln, the coal that is burned in that kiln is exempt from the 1.0 pounds of sulfur per MMBTU heat input limitation of UAC R307-203-1(1). [R307-203-1] II.B.2.d Except for diesel, the sulfur content of any fuel oil burned as a startup fuel in all kilns shall not exceed 0.85 pounds of sulfur per MMBTU heat input. Sulfur content shall be decided by ASTM Method D-3175-75, or an approved equivalent. The sulfur content shall be tested if directed by the Director. [R307-401] DAQE-AN103130047-24 Page 20 II.B.2.e The air heating combustor burning used oil for energy recovery shall comply with the following: A. The concentration/parameters of contaminants in any used oil burned as fuel shall not exceed the following levels: 1) Arsenic 5 ppm by weight 2) Cadmium 2 ppm by weight 3) Chromium 10 ppm by weight 4) Lead 100 ppm by weight 5) Total halogens 1,000 ppm by weight 6) Sulfur 0.50 percent by weight B. The flash point of all used oil to be burned as fuel shall not be less than 100 degrees F C. Used oil that does not exceed any of the listed contaminants content may be burned. The owner/operator shall record the quantities of oil burned D. Sources utilizing used oil as a fuel shall comply with the State Division of Waste Management and Radiation Control in accordance with R315-15, UAC. [R307-401] II.B.2.f The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as fuel in the KDE-1, KDE-2, KDE-4, and KDE-5 drive engines; GEN-1 engine; portable generators; and LFP engines. [R307-401-8] II.B.2.g 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.2.g.1 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] II.B.3 SO2 and Opacity CEMS Requirements II.B.3.a The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system for the continuous measurement of opacity on kiln stacks #1, #2, #3, #4, and #5. The owner/operator shall record the output of the system for measuring the opacity of emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emission Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60, Appendix B, Specification 1 - Opacity. [R307-170] II.B.3.b The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system (consisting of a SO2 pollutant concentration monitor and a flow monitoring device) for the continuous measurement of SO2 emissions on a kiln if that kiln burns pet coke or coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu. The owner/operator shall record the output of the system for measuring SO2 emissions. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 50 Appendix B, Performance Specifications 2 - SO2 and NOx Continuous Emission Monitoring Systems. [R307-170] DAQE-AN103130047-24 Page 21 II.B.3.c When a SO2 CEMS has been installed calibrated, and is operating, the emission rate of SO2 in pounds per hour measured by the SO2 CEMS for each 3-hour block averaging period will be calculated by the following formula: Eh = K * Chp * Qhs * [(100 - %H2O)/100] Where: Eh = hourly SO2 mass emission rate during unit operation, lb/hr K = 1.66 E-7 for SO2, lb/scf/ppm Chp = hourly average SO2 concentration during unit operation, ppm (dry) Qhs = hourly average volumetric flow rate during unit operation, scfh (wet) %H2O = constant moisture value specific to each kiln, percent by volume. [R307-401] II.B.3.d All continuous opacity monitoring devices as required in federal regulations and state rules shall be installed and operational prior to placing the affected source in operation. SO2 CEMS shall be installed and operational on a kiln prior to that kiln burning coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu or burning pet coke. Except for system breakdown, repairs, calibration checks, and zero and span adjustments required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. [40 CFR 60, R307-170] DAQE-AN103130047-24 Page 22 II.B.3.e The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: A. Opacity Monitors and SO2 CEMS 1) Shall operate in accordance with 40 CFR 60.13 and R307-170 UAC 2) Prior to installation of a SO2 CEMS on a kiln, the average of three (3) one-hour stack test results are less than the corresponding SO2 emission limit for that kiln 3) After installation of the SO2 CEMS on a kiln, the 3-hour block average is less than the corresponding SO2 emission limit for that kiln 4) Three-hour block averages will begin on 12:01 am and end every three (3) hours, thereafter. B. Excess Emission Requirements 1) At no time shall the owner/operator allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107 (Breakdowns), UAC. C. Reporting 1) All sources required to install a continuous emission monitor shall submit a quarterly report in an electronic format provided by the DAQ 2) All exceedances are to be reported in the quarterly report with explanations (R307-170-8 Reason Categories, UAC) and corrective actions. [40 CFR 60, R307-170] II.B.4 Haul Roads and Fugitive Dust Requirements II.B.4.a The owner/operator shall implement a fugitive dust control plan acceptable to the Director for control of all dust sources associated with the Cricket Mountain Plant. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being implemented to control fugitive dust. At least once during each permit term, the fugitive dust control plan shall be reviewed and evaluated. If the plan review indicates changes to the dust control plan are necessary to reflect current site operations, an updated fugitive dust control plan shall be submitted. The owner/operator shall operate in accordance with the most current fugitive dust control plan approved by the Director. For each plan review, a record of the date and results of the review shall be maintained. Records that demonstrate compliance with the most recently approved fugitive dust control plan shall also be maintained. [R307-401] II.B.5 Other Baghouse Requirements II.B.5.a The pressure drop on the Briquetter and Crusher (D-488) Baghouses shall not be less than 4.0 inches of water column or more than 8.0 inches of water column. [R307-401-8] II.B.5.a.1 The pressure drop shall be monitored and recorded weekly, while the unit is operating with equipment located such that an inspector/operator can safely read the output at any time. [R307-401-8] II.B.5.a.2 All instruments shall be calibrated according to the manufacturer's instructions at least once every 12 months. [R307-401-8] DAQE-AN103130047-24 Page 23 II.B.6 Alternate Operating Scenario for Synthetic HAPs Minor Operations II.B.6.a This Section contains the requirements for the AOS. If the owner/operator chooses to comply with the AOS requirements in this Section, the source will be reclassified as an area source of HAPs as defined in 40 CFR 63.2 effective on the date that AOS operations commence. Once reclassified, the requirements of 40 CFR 63 Subpart AAAAA will no longer apply. Once effective, the limits of the AOS shall apply permanently and a modification to the AO will be required should the owner/operator need to remove or modify these limits. All other requirements in this AO will continue to apply. The AOS limits will be applied in addition to the requirements in II.B.1 through II.B.5. [R307-401-8] II.B.6.b The owner/operator shall notify the Director at least 30 days prior to the effective date on which operations will commence under the AOS requirements specified in this section of the AO. The notification shall include: 1. Test results for HCl and total organic HAPs that demonstrate the source meets the definition of area source given in 40 CFR 63.2. Methods for measuring HCl and total HAPs shall be those specified in 40 CFR 63.7142, or other EPA-approved methods, as acceptable to the Director. Documentation of the testing shall be maintained 2. Date when operations will commence under the AOS and the AOS conditions limiting HAPs emissions become effective 3. Proposed schedule for CEMS installation. [R307-401-8] II.B.6.c Under the AOS, the owner/operator shall limit facility-wide emissions to: A) 9.5 tons of HCl per 12-month block period B) 24 tons of total HAPs per 12-month block period Total HAPs emissions must include the following compounds: 1) Organic HAPs: acetaldehyde benzene, chlorine, ethylbenzene, formaldehyde, hexane, toluene, and xylenes 2) Metal HAPs: arsenic, cadmium, chromium compounds, cobalt, lead, manganese, mercury, nickel, and selenium 3) HCl. [R307-401-8] II.B.6.c.1 To determine compliance with the 12-month block total, the owner/operator shall calculate a monthly total by the twenty-fifth day of each month using data from the previous month. The monthly totals shall be added to determine HCl and total HAPs emissions for the current 12-month block. The 12-month block period starts on the day that the owner/operator commences operations under the AOS. A new 12-month block period will begin each year on the date AOS operations commenced. [R307-401-8] II.B.6.c.2 The owner/operator shall demonstrate compliance with the HCl emission limit using CEMS data as outlined in Condition II.B.6.f, except as specified in II.B.6.e. The HCl CEMS shall operate for all periods the kilns are in operation. Records, including CEMS data and calculated emissions, shall be tabulated for each day. [R307-401-8] DAQE-AN103130047-24 Page 24 II.B.6.c.3 The owner/operator shall demonstrate compliance with the total HAPs limit using the following data: A. HCl CEMS data, as per II.B.6.c.2 B. Emission rates in lbs/hr measured in the most recent stack test for organic HAPs and metal HAPs. Stack testing requirements are specified in II.B.6.j C. Monthly hours of operations. Hours of operation shall be determined by records of operation and shall be kept on a daily basis. [R307-401-8] II.B.6.d The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system(s) for the continuous measurement of HCl emissions on Kilns #1-#5. The CEMS(s) shall be installed and used as the primary method of compliance within 180 days from the date the owner/operator commences operation under the AOS. At a minimum, the HCl CEMS shall consist of HCl concentration monitor(s) for each kiln, flow monitors, and a data acquisition system capable of recording measurements from Kilns 1#-#5. [R307-401-8] II.B.6.e If the CEMS are not in operation when the owner/operator commences operation under the AOS, compliance with the HCl emission limit shall be demonstrated as follows for the first 180 days of operation under the AOS: A. Emissions shall be estimated by multiplying the lime throughput (tons/month) for each kiln by HCl emission factors B. The following emission factors shall be used: i. 1.67E-1 lbs HCl/ton of lime for the dolomitic lime line ii. 1.26E-1 lbs HCl/ton of lime for the high calcium line. [R307-401-8] II.B.6.f When the HCl CEMS have been installed calibrated, and are operating, HCl emissions shall be calculated as follows for each kiln: A. Hourly HCl emissions (Eh) shall be calculated using CEMS data as follows: Eh = K * C * Q Where: Eh = hourly HCl mass emission rate during unit operation, lb/hr K = 9.46E-8 for HCl, lb/scf/ppm C = HCl concentration averaged for each one-hour period, ppmvw, as measured by the CEMS Q = volumetric flow rate averaged for each one-hour period, scfh (wet) B. The daily HCl emissions (Ed) in pounds shall be calculated by summing the hourly HCl emissions (Eh) during measured during the day. For purposes of this subsection, a "day" is defined as a period of 24-hours commencing at midnight and ending the following midnight C. Measured monthly HCl emissions shall be calculated by summing the daily emissions for all operating days in each month. [R307-401-8] DAQE-AN103130047-24 Page 25 II.B.6.g The owner/operator shall follow the data replacement procedure below when the HCl CEMS data are not valid or unavailable due to monitor downtime or because the monitor is out of control, as determined by 40 CFR 60 Appendix F, Procedure 1 and/or 6: Ema = Em * (1 +(1/DA - 1) x C Where: Ema = adjusted monthly HCl emissions, lbs Em = total unadjusted HCl mass emission for the month, prior to data replacement procedure, lb/hr DA = data availability, fraction of operating time for which monitor data is available during the reporting period (e.g. 95% data availability = 0.95) and, C = Conservative Factor = 1.05 = 5% increase. [R307-401-8] II.B.6.h The owner/operator shall record the output of the system for measuring HCl emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emissions Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60 Subpart A and Appendix B, and either Performance Specification PS-18 or Performance Specification PS-15 as applicable and approved by the Director. [R307-401-8] II.B.6.i The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: 1) Except for system breakdown, repairs, calibration checks, and zero and span adjustments required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. Flow measurement shall be in accordance with the requirements of 40 CFR 52; Appendix E, 40 CFR 60 Appendix B; or 40 CFR 75, Appendix A 2) Initial performance specification test shall be performed within 60 days of installation. The performance specification test shall be conducted in accordance with the procedures contained in 40 CFR 60, Appendix B, Performance Specifications 15 or 18. The Director shall be notified prior to conducting the performance specification test 3) At no time shall the owner/operators allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107(Breakdowns), UAC. [R307-170] DAQE-AN103130047-24 Page 26 II.B.6.j The owner/operator shall follow the following requirements for stack testing of organic and metal HAPs: A. Emission Units Emission units subject to organic and metal HAPs testing requirements are Kiln #1, Kiln #2, Kiln #3, Kiln #4, and Kiln #5 B. Initial Compliance Testing Initial compliance testing shall be performed as soon as possible and not later than 180 days after the owner/operator commences operation under the AOS C. Frequency Test every three (3) years D. Test Method Organic HAPs 40 CFR 60, Appendix A, Method 320 and Method 18, or other EPA-approved testing method acceptable to the Director E. Test Method Chlorine 40 CFR 60, Appendix A, Method 26A, or other EPA-approved testing method acceptable to the Director F. Test Method Metal HAPs 40 CFR 60, Appendix A, Method 29, or other EPA-approved testing method acceptable to the Director G. Other Unless otherwise specified in this Section, the stack requirements in II.B.1.b.2 and II.B.1.b.3 apply. [R307-401-8] II.B.6.k Quarterly reports shall be submitted as outlined in R307-170. The reports shall also include: 1) Total HCl emissions for the cumulative quarters of the current 12-month block 2) Total HAPs emissions for the cumulative quarters of the current 12-month block. [R307-170, R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN103130044-21 dated May 4, 2021 Is Derived From Source Submitted NOI dated June 14, 2023 Incorporates Additional Information Received dated October 2, 2023 DAQE-AN103130047-24 Page 27 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-IN103130047-23 December 7, 2023 Colby Roberts Graymont Western US Incorporated 585 West Southridge Way Sandy, UT 84070 nstettler@graymont.com Dear Mr. Roberts: Re: Intent to Approve: Enhanced Approval Order Change to DAQE-AN103130044-21 to Correct Fugitive Dust Conditions Project Number: N103130047 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, John Jenks, as well as the DAQE number as shown on the upper right-hand corner of this letter. John Jenks, can be reached at (385) 306- 6510 or jjenks@utah.gov, if you have any questions. Sincerely, {{$s }} Jon L. Black, Manager New Source Review Section JLB:JJ:jg cc: Central Utah Health Department DJ Law, EPA Region 8 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. (801) 536-4414 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director * ) ' & — F v A ? A B @ C w B G ˜ STATE OF UTAH Department of Environmental Quality Division of Air Quality INTENT TO APPROVE DAQE-IN103130047-23 Enhanced Approval Order Change to DAQE-AN103130044-21 to Correct Fugitive Dust Conditions Prepared By John Jenks, Engineer (385) 306-6510 jjenks@utah.gov Issued to Graymont Western US Incorporated - Cricket Mountain Plant Issued On December 7, 2023 {{$s }} New Source Review Section Manager Jon L. Black {{#s=Sig_es_:signer1:signature}} * ) ' & — F v A ? A B @ C w B G ˜ 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............................................................................................... 5 SECTION I: GENERAL PROVISIONS .................................................................................... 5 SECTION II: PERMITTED EQUIPMENT .............................................................................. 6 SECTION II: SPECIAL PROVISIONS ................................................................................... 13 PERMIT HISTORY ................................................................................................................... 27 ACRONYMS ............................................................................................................................... 28 DAQE-IN103130047-23 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Graymont Western US Incorporated Graymont Western US Incorporated - Cricket Mountain Plant Mailing Address Physical Address 585 West Southridge Way Sandy, UT, 84070 32 Miles Southwest of Delta, Utah; Highway 257 PO Box 669 Delta (Millard), UT 84624 Source Contact UTM Coordinates Name Nate Stettler 343,100 m Easting Phone (801) 598-8076 4,311,010 m Northing Email nstettler@graymont.com Datum NAD27 UTM Zone 12 SIC code 1422 (Limestone, Crushed & Broken) SOURCE INFORMATION General Description Graymont Western US Incorporated (Graymont) operates the Cricket Mountain Lime Plant in Millard County. The Cricket Mountain Lime Plant consists of quarries and a lime processing plant, which includes five rotary lime kilns (Kilns 1 through 5). The rotary kilns are used to convert crushed limestone ore into quicklime. The products produced for resale are lime, limestone, and kiln dust. The kilns operate on pet coke and coal. Sources of emissions at this source include mining, limestone processing, rotary lime kilns, post-kiln lime handling, and truck & loadout facilities. NSR Classification Minor Modification at Major Source Source Classification Located in Attainment Area Millard County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Y: Standards of Performance for Coal Preparation and Processing Plants NSPS (Part 60), HH: Standards of Performance for Lime Manufacturing Plants NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines MACT (Part 63), A: General Provisions DAQE-IN103130047-23 Page 4 MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines MACT (Part 63), AAAAA: National Emission Standards for Hazardous Air Pollutants for Lime Manufacturing Plants Title V (Part 70) Major Source Project Description Graymont submitted a request for updating the chemical stabilizer dust control application. Specifically, that the frequency of application be reduced from a schedule of 3 times a year to 2 times a year. After review, UDAQ determined that the listing of dust control requirements in the AO is redundant. The requirement to maintain a dust control plan is sufficient for the minimization of fugitive dust. With the removal of the listed conditions in the AO, Graymont is free to modify the fugitive dust control plan to incorporate the change in application frequency. No change in equipment, processes or associated emissions will occur. 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 887964.00 Carbon Monoxide 0 7821.19 Nitrogen Oxides 0 3883.85 Particulate Matter - PM10 0 611.87 Particulate Matter - PM2.5 0 610.78 Sulfur Oxides 0 760.29 Volatile Organic Compounds 0 117.84 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Acetaldehyde (CAS #75070) 0 1963 Acrolein (CAS #107028) 0 1 Arsenic (TSP) (CAS #7440382) 0 88 Benzene (Including Benzene From Gasoline) (CAS #71432) 0 7734 Cadmium (CAS #7440439) 0 58 Chlorine (CAS #7782505) 0 1078 Chromium Compounds (CAS #CMJ500) 0 1214 Cobalt (TSP) (CAS #7440484) 0 1154 Ethyl Benzene (CAS #100414) 0 488 Formaldehyde (CAS #50000) 0 1612 Hexane (CAS #110543) 0 2566 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 44400 Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 156 Lead (CAS #7439921) 0 1204 Manganese (TSP) (CAS #7439965) 0 546 Mercury (TSP) (CAS #7439976) 0 64 Nickel (CAS #7440020) 0 422 DAQE-IN103130047-23 Page 5 Selenium & Compounds (CAS #253) 0 402 Toluene (CAS #108883) 0 2678 Xylenes (Isomers And Mixture) (CAS #1330207) 0 2562 Change (TPY) Total (TPY) Total HAPs 0 35.19 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 Millard County Chronicle Progress on December 13, 2023. 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. 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 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] DAQE-IN103130047-23 Page 6 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 Lime Manufacturing Plant [All equipment designation numbers are those used by Graymont Western U.S. Incorporated] II.A.2 K-1 Kiln Rotary Lime Kiln #1 rated at 600 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-85) rated at an exhaust gas flow rate 54,000 scfm and an Air to Cloth (A/C) ratio of 3.26:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.3 K-2 Kiln Rotary Lime Kiln #2 rated at 600 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-275) rated at an exhaust gas flow rate of 48,000 scfm and an A/C ratio of 2.9:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.4 K-3 Kiln Rotary Lime Kiln #3 rated at 840 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-375) rated at an exhaust gas flow rate of 55,000 scfm and a A/C ratio of 2.49:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.5 K-4 Kiln Rotary Lime Kiln #4 rated at 1266 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-485) rated at an exhaust gas flow rate of 100,000 scfm and an A/C ratio of 5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.6 K-5 Kiln Rotary Lime Kiln #5 rated at 1400 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-585) rated at an exhaust gas flow rate of 103,000 scfm and an A/C ratio of 3.5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.7 KDE-1 Kiln Drive Engine Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ DAQE-IN103130047-23 Page 7 II.A.8 KDE-2 Kiln Drive Engine Rating: 45 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.9 KDE-3 Kiln Drive Engine Rating: 55 hp Fuel: Gasoline MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.10 KDE-4 Kiln Drive Engine Rating: 65 hp Fuel: Diesel Manufacture Date: Pre 12/19/2002 MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.11 KDE-5 Kiln Drive Engine Rating: 173.5 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.12 D-91 Coal Silo Baghouse For Kiln #1 Exhaust gas flow rate: 1,000 scfm II.A.13 D-94 Coal Silo Baghouse For Kiln #2 Exhaust gas flow rate: 1,000 scfm II.A.14 D-391 Coal Silo Baghouse For Kiln #3 Exhaust gas flow rate: 1,000 scfm II.A.15 D-491 Coal Silo Baghouse For Kiln #4 Exhaust gas flow rate: 1,500 scfm II.A.16 D-591 Coal Silo Baghouse For Kiln #5 Exhaust gas flow rate: 1,000 acfm II.A.17 D-331 Product Baghouse For Kiln #1, #2 loadout area and screenhouse dust collector Exhaust gas flow rate: 32,000 scfm II.A.18 D-330 Product Baghouse For Kiln #3 cooler pit dust collector Exhaust gas flow rate: 11,000 scfm II.A.19 D-447 Product Baghouse For Kiln #4 cooler and screenhouse dust collector Exhaust gas flow rate: 18,300 scfm DAQE-IN103130047-23 Page 8 II.A.20 D-463 Product Baghouse For Kiln #4 product loadout and C-463 dust collector Exhaust gas flow rate: 8,300 scfm II.A.21 D-341 Product Baghouse For Silo T-341 Exhaust gas flow rate: 2,000 scfm II.A.22 D-530 Product Baghouse Product handling baghouse #1 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.23 D-564 Product Baghouse Product handling baghouse #2 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.24 D-547 Product Baghouse Product handling baghouse #3 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.25 D-83 Lime Kiln Dust Silo Baghouse For Kilns #1 and #2 Exhaust gas flow rate: 6,000 scfm II.A.26 D-489 Lime Kiln Dust Silo Baghouse For Kilns #4 lime kiln dust silo Exhaust gas flow rate: 6,000 scfm II.A.27 D-486 Lime Kiln Dust Silo Baghouse For Kiln #4 Exhaust gas flow rate: 4,000 scfm II.A.28 D-466 Lime Kiln Dust Silo Baghouse For lime kiln dust silo Exhaust gas flow rate: 4,000 scfm II.A.29 D-586 Lime Kiln Dust Silo Baghouse For Kiln #5 dust silo Exhaust gas flow rate: 2,500 scfm II.A.30 D-589 Lime Kiln Dust Silo Baghouse For loadout of Kiln #5 dust silo Exhaust gas flow rate: 1,500 scfm II.A.31 T-381 Lime Kiln Dust Silo Maximum Capacity: 300 tons II.A.32 D-381 Lime Kiln Dust Silo Baghouse For 300-ton lime kiln dust silo (T-381) Exhaust gas flow rate: 3,000 scfm II.A.33 T-381 Loadout Spout For 300-ton lime kiln dust silo (T-381) II.A.34 D-382 Loadout Spout (T-381) Baghouse For Loadout Spout (T-381) Exhaust gas flow rate: 2,000 scfm DAQE-IN103130047-23 Page 9 II.A.35 D-333 Product Loadout Baghouse For rail loadout Exhaust gas flow rate: 10,000 scfm II.A.36 D-10 Limestone Ore Preparation Baghouse For stone reclaim screen for Kiln #1 & #2 Exhaust gas flow rate: 8,000 scfm II.A.37 D-310 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #3 Exhaust gas flow rate: 8,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.38 D-414 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #4 Exhaust gas flow rate: 3,100 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.39 D-514 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #5 Exhaust gas flow rate: 4,500 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.40 D-1 Limestone Ore Processing Baghouse For quarry crusher & screen Exhaust gas flow rate: 28,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.41 D-503 Conveying System For dust collection for Kiln #5 limestone conveyor transfer points Exhaust flow rate: 2,000 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.42 D-403 Conveying System For stone dump from conveyor 408 & 409 to reclaim pile Exhaust gas flow rate: 2,200 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.43 D-415 Conveying System with Baghouse For limestone dump to Kiln #4 preheater Exhaust gas flow rate: 600 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.44 D-479 Dolomitic Lime Handling System Baghouse Product transfer baghouse to S-471, T-471, T-472, T-473, and T-474. The 435-material handling system consists of 2 elevators, a vibratory conveyor, a number of belt conveyors, and a mixing screw conveyor Exhaust gas flow rate: 4,300 scfm II.A.45 R-486 Dolomite Crusher Rating: 40 tons/hr II.A.46 N-470 Dolomitic Lime Handling System Recycle Bin DAQE-IN103130047-23 Page 10 II.A.47 Processed Stone Handling (PSH) Operations Operations to transport material from storage piles (fines, small stone, medium stone, large stone [sugar]) to kiln preheaters. Includes bins, bin transfer points, preheater transfer points, and conveyors. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.48 Sugar Stone System System to store, screen and load sugar stones. Includes a hopper (HP-1), screen (S-2), loadout system (203255SSS001), conveyors (C-MISC2), and generator (GEN-1). II.A.49 HP-1 Hopper Sugar Stone System II.A.50 S-2 Screen Sugar Stone System NSPS Applicability: 40 CFR 60 Subpart OOO II.A.51 Loadout Sugar Stone System Rail Loadout II.A.52 C-MISC2 Sugars Stone System Miscellaneous Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO II.A.53 GEN-1 Generator Sugar Stone System Rating: 130.1 hp Fuel: Diesel MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.54 Portable Crusher System (PCS) Includes hopper, crushers (PCS-1), hopper (HP-2), generator (PCS-4), and conveyors. II.A.55 PCS Hopper Feed Hopper II.A.56 PCS-1 Crusher System ICR101: Primary Crusher Capacity: 690 tons/hr ICR102: Secondary Crusher Capacity: 690 tons/hr NSPS Applicability: 40 CFR 60 Subpart OOO II.A.57 PCS-2 Screen/Conveyor Transfer Points Screen and material transfer points to and from conveyor belts. NSPS Applicability: 40 CFR 60 Subpart OOO II.A.58 PCS-3 Conveyor Drop Points Material drop points to the fines and product stockpiles NSPS Applicability: 40 CFR 60 Subpart OOO II.A.59 PCS-4 Generator Portable Crusher System Quantity: 3 Rating: 740 hp combined Fuel: Diesel II.A.60 PCS Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO DAQE-IN103130047-23 Page 11 II.A.61 D-7122 Limestone Grinding Plant Baghouse For grinding mill, direct-fire heater, material separator Exhaust gas flow rate: 10,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.62 D-7133 Limestone Grinding Plant Baghouse For screen, three bucket elevators, three storage silos Exhaust gas flow rate: 4,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.63 D-7141 Limestone Grinding Plant Baghouse For truck load-out and rail load-out Exhaust gas flow rate: 3,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.64 C-MISC1 Limestone Grinding Plant Miscellaneous Conveyors II.A.65 D-488 Briquetter and Crusher Baghouse For crusher (R-486), briquetters (BRI-474 and BRI-014), and silo (T-470) Exhaust gas flow rate: 1,700 scfm II.A.66 BRI-474 Briquetter II.A.67 BRI-014 Briquetter II.A.68 C-045 Conveying System Fines Truck Loadout Conveyor - 250 tons/hr II.A.69 C-305 Conveying System Medium and Small Stone Pile Conveyor - 600 tons/hr II.A.70 S-466 Screen Dolomitic Screen II.A.71 C-Coal Handling Miscellaneous Conveyors II.A.72 Feeder-Coal Handling Four Vibratory Feeders II.A.73 PW Portable Pressure Washer Rating: 18 hp Fuel: Gasoline II.A.74 HR-1 Haul Road Quarry to plant and plant to highway. Length: 6 miles II.A.75 HR-2 Haul Road Inside quarry II.A.76 Limestone Fines Product (LFP) Loadout System Includes a screen hopper, screen, screen conveyors, tent storage area, product loadout hopper, product loadout conveyor, and engines (CAT4.4 and V3600-T). DAQE-IN103130047-23 Page 12 II.A.77 LFP - Engines CAT 4.4 Generator Rating: 130 hp Kubota V3600-T Generator Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.78 LFP-1 Hopper Capacity: 250 ton/hour II.A.79 LFP-2 Screen Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.80 LFP-3 Conveyors Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.81 LFP-4 Storage Tent storage area II.A.82 LFP-5 Hopper Product loadout hopper Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.83 LFP-6 Conveyor Product Loadout Conveyor Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.84 Stationary Pressure Washer Rating: 0.4 MMBtu/hr Fuel: Propane Listed for information purposes only II.A.85 Fuel Storage Tanks Four 10,150-gallon diesel storage tanks One 12,000-gallon diesel storage tank One 2,000-gallon gasoline storage tank One 500-gallon gasoline storage tank DAQE-IN103130047-23 Page 13 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 Sitewide Requirements II.B.1.a The following limits shall not be exceeded: A. For Kilns #1, #2, #3, #4 and #5 collectively: 1) 1,516,250 tons lime per rolling 12-month period. 2) 4,706 tons lime per day. B. Sugar Stone System 1) 135,000 tons of sugar stone per rolling 12-month period. 2) 750 hours of operation for the 130.1 hp generator per rolling 12- month period. C. Portable Crushing System 1) 750,000 tons of limestone per rolling 12-month period. 2) 4,000 hours of operation per rolling 12-month period. D. Truck hauling of stone from the quarry to the plant 1) No more than 108 rounds trips per day (midnight to midnight) 24- hour period. E. Limestone Fines Product Loadout Process 1) 200,000 tons of limestone per rolling 12-month period. 2) 6,500 hours of operation per rolling 12-month period. [R307-401] II.B.1.a.1 Compliance with the above 12-month production limitations shall be determined on a rolling 12- month total. Calculations for the 12-month production shall be completed within 25 calendar days from the end of the previous month. Records of production shall be kept for all periods when the plant is in operation. Production shall be determined by plant production records, such as scale records or sales receipts. Hours of operation and number of truck trips shall be determined by records of operation. The records shall be kept on a daily basis. [R307-401-8] DAQE-IN103130047-23 Page 14 II.B.1.b Emissions to the atmosphere from the indicated emission point shall not exceed the following rates and concentrations (standardized at 68 oF, 29.92 in Hg) (lbs/tsf = pounds per ton of stone fed): Emission Point: Kiln #1 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 0.020 0.12 PM10 (Filterable + Condensable) 6.0 0.016 SO2 22.4 NOx 90.0 Emission Point: Kiln #2 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 8.23 0.020 0.12 PM10 (Filterable + Condensable) 6.58 0.016 SO2 22.4 NOx 120.0 Emission Point: Kiln #3 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 7.49 0.020 0.10 PM10 (Filterable + Condensable) 7.54 0.016 SO2 27.2 NOx 160.0 Emission Point: Kiln #4 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 17.14 0.020 0.12 PM10 (Filterable + Condensable) 13.7 0.016 SO2 38.4 NOx 200.0 Emission Point: Kiln #5 Baghouse Stack Pollutant lb/hr grain/dscf Other TSP 0.020 0.10 lbs/tsf PM10 (Filterable + Condensable) 11.7 0.016 SO2 59.0 1.01 lb/ton lime NOx 210.0 3.60 lb/ton lime CO 233.0 4.00 lb/ton lime Emission Point: Briquetter and Crusher Baghouse (D-488) Stack Pollutant lb/hr grain/dscf TSP 0.29 0.020 PM10 (Filterable) 0.15 0.010 PM2.5 (Filterable) 0.15 0.010 After the installation of an SO2 CEMS, compliance with the SO2 emission limit will be based on a 3-hour block average. Testing for compliance with the lb/ton lime limits must comply with all stack testing requirements. [R307-401] DAQE-IN103130047-23 Page 15 II.B.1.b.1 Stack testing to show compliance with the emission limitations stated in the above condition shall be performed as specified below: Emission Point Pollutant Status Test Frequency Kiln #1 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #2 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx * + Emission Point Pollutant Status Test Frequency Kiln #3 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #4 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #5 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + CO *** + Emission Point Pollutant Status Test Frequency (D-488) Baghouse Stack TSP *** + PM10 *** + PM2.5 (Filterable)*** + * No Initial Testing was required. The source shall be tested if directed by the Director at any time. ** Initial compliance testing is required. The initial test date shall be performed as soon as possible and in no case later than 180 days after the startup of a new emission source, an existing source without an AO, or the granting of an AO to an existing emission source that has not had an initial compliance test performed. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. *** Initial compliance testing was required and completed. + Test every three years. The Director may require testing at any time. [R307-401] DAQE-IN103130047-23 Page 16 II.B.1.b.2 A. Notification The Director shall be notified at least 60 days prior to conducting any required emission testing for sources subject to 40 CFR 63 Subpart AAAAA. All other sources shall notify the Director at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ when the testing notification is submitted to the Director. The source test protocol shall be approved by the Director prior to performing the test(s). The source test protocol shall outline the proposed test methodologies, stack to be tested, and procedures to be used. A pretest conference shall be held, if directed by the Director. B. Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other methods as approved by the Director. An Occupational Safety and Health Administration (OSHA) or Mine Safety and Health Administration (MSHA) approved access shall be provided to the test location. C. Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing method acceptable to the Director. D. Total Suspended Particulate (TSP) 40 CFR 60, Appendix A, Method 5 or other EPA-approved testing method acceptable to the Director. E. PM10 (Filterable + Condensable) For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201, 201a, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA approved method acceptable by the Director. All particulate captured shall be considered PM10. For stacks in which liquid drops are present, methods to eliminate the liquid drops should be explored. If no reasonable method to eliminate the drops exists, then the following methods shall be used: 40 CFR 60, Appendix A, Method 5, 5a, 5d, or 5e as appropriate, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA method as acceptable to the Director. The portion of the front half of the catch considered PM10 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director. F. PM2.5 (Filterable) 40 CFR 60, Appendix A, Method 5; 40 CFR 51, Appendix M, Method 201A or other EPA-approved testing method as acceptable to the Director. If other approved testing methods are used which cannot measure the PM2.5 fraction of the filterable particulate emissions, all of the filterable particulate emissions shall be considered PM2.5. The portion of the front half of the catch considered PM2.5 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director. G. Sulfur Dioxide (SO2) 40 CFR 60, Appendix A, Method 6, 6A, 6B, 6C, or other EPA-approved testing method acceptable to the Director. H. Nitrogen Oxides (NOx) 40 CFR 60, Appendix A, Method 7, 7A, 7B, 7C, 7D, 7E, or other EPA approved method as acceptable to the Director. I. Carbon Monoxide (CO) 40 CFR 60, Appendix A, Method 10, or other EPA approved method as acceptable to the Director. [R307-401] DAQE-IN103130047-23 Page 17 II.B.1.b.3 J. Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods above shall be multiplied by the volumetric flow rate and any necessary conversion factors determined by the Director, to give the results in the specified units of the emission limitation. To determine emission rates in units of lbs/ton lime, the emission rate in lbs/hour shall be divided by the tons/hour lime production rate. Lime production rate shall either be a direct measurement or shall be calculated using the following conversion factor: 2 tons of limestone feed equates to 1 ton of lime produced (2 tons limestone: 1-ton lime). K. New Source Operation For a new source/emission point, the production rate during all compliance testing shall be no less than 90% of the production rate listed in this AO. If the maximum AO allowable production rate has not been achieved at the time of the test, the following procedure shall be followed: 1) Testing shall be at no less than 90% of the production rate achieved to date. 2) If the test is passed, the new maximum allowable production rate shall be 110% of the tested achieved rate, but not more than the maximum allowable production rate. This new allowable maximum production rate shall remain in effect until successfully tested at a higher rate. 3) The owner/operator shall request a higher production rate when necessary. Testing at no less than 90% of the higher rate shall be conducted. A new maximum production rate (110% of the new rate) will then be allowed if the test is successful. This process may be repeated until the maximum AO production rate is achieved. L. Existing Source Operation For the existing kilns, the production rate during all compliance testing shall be no less than 90% of the maximum production achieved in the previous three (3) years. M. Reporting The results of stack testing shall be submitted to the Director within 60 days of completion of the testing. Reports shall clearly identify results as compared to permit limits and indicate compliance status. [R307-165, R307-401] DAQE-IN103130047-23 Page 18 II.B.1.c Visible emissions from the following emission points shall not exceed the following opacity values: A. Kilns #1, #2, #3, #4, and #5 15% B. All ancillary silo and storage bin baghouses 10% C. Product baghouses 10 % D. Subpart OOO baghouses 7% E. All non-OOO crushers 15% F. All non-OOO screens 10% G. All non-OOO conveyor transfer points 10% H. Subpart OOO crushers* i. Post-April 22, 2008 12% ii. Pre-April 22, 2008 15% I. Subpart OOO screens* i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% J. Subpart OOO conveyor transfer points* i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% K. All diesel engines 20% L. Conveyor drop points 20% M. PSH operations stack emissions 7% N. PSH operations fugitive emissions 10% O. All other points sources 20% *Opacity limits from 40 CFR 60 Subpart OOO shown as "Post-April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after April 22, 2008 and "Pre-April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after August 31, 1983 but before April 22, 2008. Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. For sources that are subject to NSPS, opacity shall be determined by conducting observations in accordance with 40 CFR 60.11(b) and 40 CFR 60, Appendix A, Method 9. Visible emissions from haul road traffic shall be minimized in accordance with the fugitive dust control plan. [R307-401] DAQE-IN103130047-23 Page 19 II.B.1.c.1 The owner/operator shall make at least one visual opacity survey each quarter for each kiln drive engine. The visual opacity survey shall be performed while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. The individual is not required to be a certified visual emissions observer (VEO). If visible emissions are observed from an emission unit, an opacity determination of that emission unit shall be performed by a certified observer within 24 hours of the initial survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix A, Method 9. The owner/operator shall maintain a log of the visual opacity surveys, opacity determinations, and all data required by 40 CFR 60, Appendix A, Method 9. [R307-401] II.B.2 Fuel Requirements II.B.2.a The owner/operator shall use coal as the primary fuel, except a combination of coal and petroleum coke (pet coke) may be used in Kilns #1 and #5, and propane and fuel oil as a startup fuel in all kilns. Prior to burning petroleum coke in Kilns #1 and #5 or coal with a sulfur content in excess of 1.0 lb/MMBTU in Kilns #1, #2, #3, #4, or #5, an SO2 CEM must be installed, calibrated, and operating on that kiln. [R307-401] II.B.2.b The owner/operator shall use propane, diesel, and used oil in any combination in the direct fire heating system for the limestone grinding plant. [R307-401] II.B.2.c The sulfur content of any coal or any mixture of coals burned shall not exceed 1.0 pounds of sulfur per MMBTU heat input. Sulfur content shall be determined by the owner/operator or the coal supplier using ASTM Method D3174-12(2018), D3176-15, D4239-18e1, D5016-16 or an approved equivalent ASTM Method. If the owner/operator chooses supplier certification, the sulfur content shall be tested quarterly from a composite sample. If the owner/operator chooses to test the sulfur content of the coal, the composite sample shall be tested quarterly from a composite grab sample taken every 24 hours of operation. Records, or supplier furnished certifications, of this testing shall be kept on-site for a period of five (5) years and be provided to the Director upon request. After a SO2 CEMS has been installed, calibrated, and is operating on a kiln, the coal that is burned in that kiln is exempt from the 1.0 pounds of sulfur per MMBTU heat input limitation of UAC R307-203-1(1). [R307-203-1] II.B.2.d Except for diesel, the sulfur content of any fuel oil burned as a startup fuel in all kilns shall not exceed 0.85 pounds of sulfur per MMBTU heat input. Sulfur content shall be decided by ASTM Method D-3175-75, or an approved equivalent. The sulfur content shall be tested if directed by the Director. [R307-401] DAQE-IN103130047-23 Page 20 II.B.2.e The air heating combustor burning used oil for energy recovery shall comply with the following: A. The concentration/parameters of contaminants in any used oil burned as fuel shall not exceed the following levels: 1) Arsenic 5 ppm by weight 2) Cadmium 2 ppm by weight 3) Chromium 10 ppm by weight 4) Lead 100 ppm by weight 5) Total halogens 1,000 ppm by weight 6) Sulfur 0.50 percent by weight B. The flash point of all used oil to be burned as fuel shall not be less than 100 degrees F. C. Used oil that does not exceed any of the listed contaminants content may be burned. The owner/operator shall record the quantities of oil burned. D. Sources utilizing used oil as a fuel shall comply with the State Division of Waste Management and Radiation Control in accordance with R315-15, UAC. [R307-401] II.B.2.f The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as fuel in the KDE-1, KDE-2, KDE-4, and KDE-5 drive engines; GEN-1 engine; portable generators; and LFP engines. [R307-401-8] II.B.2.g 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.2.g.1 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] II.B.3 SO2 and Opacity CEMS Requirements II.B.3.a The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system for the continuous measurement of opacity on kiln stacks #1, #2, #3, #4 and #5. The owner/operator shall record the output of the system for measuring the opacity of emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emission Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60, Appendix B, Specification 1 - Opacity. [R307-170] II.B.3.b The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system (consisting of a SO2 pollutant concentration monitor and a flow monitoring device) for the continuous measurement of SO2 emissions on a kiln if that kiln burns pet coke or coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu. The owner/operator shall record the output of the system for measuring SO2 emissions. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 50 Appendix B, Performance Specifications 2 - SO2 and NOx Continuous Emission Monitoring Systems. [R307-170] DAQE-IN103130047-23 Page 21 II.B.3.c When a SO2 CEMS has been installed calibrated, and is operating, the emission rate of SO2 in pounds per hour measured by the SO2 CEMS for each 3-hour block averaging period will be calculated by the following formula: Eh = K * Chp * Qhs * [(100 - %H2O)/100] Where: Eh = hourly SO2 mass emission rate during unit operation, lb/hr K = 1.66 E-7 for SO2, lb/scf/ppm Chp = hourly average SO2 concentration during unit operation, ppm (dry) Qhs = hourly average volumetric flow rate during unit operation, scfh (wet) %H2O = constant moisture value specific to each kiln, percent by volume. [R307-401] II.B.3.d All continuous opacity monitoring devices as required in federal regulations and state rules shall be installed and operational prior to placing the affected source in operation. SO2 CEMS shall be installed and operational on a kiln prior to that kiln burning coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu or burning pet coke. Except for system breakdown, repairs, calibration checks, and zero and span adjustments required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. [40 CFR 60, R307-170] DAQE-IN103130047-23 Page 22 II.B.3.e The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: A. Opacity Monitors and SO2 CEMS 1) Shall operate in accordance with 40 CFR 60.13 and R307-170 UAC. 2) Prior to installation of a SO2 CEMS on a kiln, the average of three one- hour stack test results are less than the corresponding SO2 emission limit for that kiln. 3) After installation of the SO2 CEMS on a kiln, the 3-hour block average is less than the corresponding SO2 emission limit for that kiln. 4) Three-hour block averages will begin on 12:01 am and end every 3 hours, thereafter. B. Excess Emission Requirements 1) At no time shall the owner/operator allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107 (Breakdowns), UAC. C. Reporting 1) All sources required to install a continuous emission monitor shall submit a quarterly report in an electronic format provided by the DAQ. 2) All exceedances are to be reported in the quarterly report with explanations (R307-170-8 Reason Categories, UAC) and corrective actions. [40 CFR 60, R307-170] II.B.4 Haul Roads and Fugitive Dust Requirements II.B.4.a The owner/operator shall implement a fugitive dust control plan acceptable to the Director for control of all dust sources associated with the Cricket Mountain Plant. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being implemented to control fugitive dust. At least once during each permit term, the fugitive dust control plan shall be reviewed and evaluated. If the plan review indicates changes to the dust control plan are necessary to reflect current site operations, an updated fugitive dust control plan shall be submitted. The owner/operator shall operate in accordance with the most current fugitive dust control plan approved by the Director. For each plan review, a record of the date and results of the review shall be maintained. Records that demonstrate compliance with the most recently approved fugitive dust control plan shall also be maintained. [R307-401] II.B.5 Other Baghouse Requirements II.B.5.a The pressure drop on the Briquetter and Crusher (D-488) Baghouses shall not be less than 4.0 inches of water column or more than 8.0 inches of water column. [R307-401-8] II.B.5.a.1 The pressure drop shall be monitored and recorded weekly, while the unit is operating with equipment located such that an inspector/operator can safely read the output at any time. [R307-401-8] II.B.5.a.2 All instruments shall be calibrated according to the manufacturer's instructions at least once every 12 months. [R307-401-8] DAQE-IN103130047-23 Page 23 II.B.6 Alternate Operating Scenario for Synthetic HAPs Minor Operations II.B.6.a This Section contains the requirements for the AOS. If the owner/operator chooses to comply with the AOS requirements in this Section, the source will be reclassified as an area source of HAPs as defined in 40 CFR 63.2 effective on the date that AOS operations commence. Once reclassified, the requirements of 40 CFR 63 Subpart AAAAA will no longer apply. Once effective, the limits of the AOS shall apply permanently and a modification to the AO will be required should the owner/operator need to remove or modify these limits. All other requirements in this AO will continue to apply. The AOS limits will be applied in addition to the requirements in II.B.1 through II.B.5. [R307-401-8] II.B.6.b The owner/operator shall notify the Director at least 30 days prior to the effective date on which operations will commence under the AOS requirements specified in this section of the AO. The notification shall include: 1. Test results for HCl and total organic HAPs that demonstrate the source meets the definition of area source given in 40 CFR 63.2. Methods for measuring HCl and total HAPs shall be those specified in 40 CFR 63.7142, or other EPA-approved methods, as acceptable to the Director. Documentation of the testing shall be maintained. 2. Date when operations will commence under the AOS and the AOS conditions limiting HAPs emissions become effective. 3. Proposed schedule for CEMS installation. [R307-401-8] II.B.6.c Under the AOS, the owner/operator shall limit facility-wide emissions to: A) 9.5 tons of HCl per 12-month block period B) 24 tons of total HAPs per 12-month block period Total HAPs emissions must include the following compounds: 1) Organic HAPs: acetaldehyde benzene, chlorine, ethylbenzene, formaldehyde, hexane, toluene, and xylenes. 2) Metal HAPs: arsenic, cadmium, chromium compounds, cobalt, lead, manganese, mercury, nickel, and selenium. 3) HCl. [R307-401-8] II.B.6.c.1 To determine compliance with the 12-month block total, the owner/operator shall calculate a monthly total by the twenty-fifth day of each month using data from the previous month. The monthly totals shall be added to determine HCl and total HAPs emissions for the current 12- month block. The 12-month block period starts on the day that the owner/operator commences operations under the AOS. A new 12-month block period will begin each year on the date AOS operations commenced. [R307-401-8] DAQE-IN103130047-23 Page 24 II.B.6.c.2 The owner/operator shall demonstrate compliance with the HCl emission limit using CEMS data as outlined in Condition II.B.6.f, except as specified in II.B.6.e. The HCl CEMS shall operate for all periods the kilns are in operation. Records, including CEMS data and calculated emissions, shall be tabulated for each day. [R307-401-8] II.B.6.c.3 The owner/operator shall demonstrate compliance with the total HAPs limit using the following data: A. HCl CEMS data, as per II.B.6.c.2. B. Emission rates in lbs/hr measured in the most recent stack test for organic HAPs and metal HAPs. Stack testing requirements are specified in II.B.6.j. C. Monthly hours of operations. Hours of operation shall be determined by records of operation and shall be kept on a daily basis. [R307-401-8] II.B.6.d The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system(s) for the continuous measurement of HCl emissions on Kilns #1- #5. The CEMS(s) shall be installed and used as the primary method of compliance within 180 days from the date the owner/operator commences operation under the AOS. At a minimum, the HCl CEMS shall consist of HCl concentration monitor(s) for each kiln, flow monitors, and a data acquisition system capable of recording measurements from Kilns 1#-#5. [R307-401-8] II.B.6.e If the CEMS are not in operation when the owner/operator commences operation under the AOS, compliance with the HCl emission limit shall be demonstrated as follows for the first 180 days of operation under the AOS: A. Emissions shall be estimated by multiplying the lime throughput (tons/month) for each kiln by HCl emission factors. B. The following emission factors shall be used: i. 1.67E-1 lbs HCl/ton of lime for the dolomitic lime line. ii. 1.26E-1 lbs HCl/ton of lime for the high calcium line. [R307-401-8] DAQE-IN103130047-23 Page 25 II.B.6.f When the HCl CEMS have been installed calibrated, and are operating, HCl emissions shall be calculated as follows for each kiln: A. Hourly HCl emissions (Eh) shall be calculated using CEMS data as follows: Eh = K * C * Q Where: Eh = hourly HCl mass emission rate during unit operation, lb/hr K = 9.46E-8 for HCl, lb/scf/ppm C = HCl concentration averaged for each one-hour period, ppmvw, as measured by the CEMS Q = volumetric flow rate averaged for each one-hour period, scfh (wet) B. The daily HCl emissions (Ed) in pounds shall be calculated by summing the hourly HCl emissions (Eh) during measured during the day. For purposes of this subsection, a "day" is defined as a period of 24-hours commencing at midnight and ending the following midnight. C. Measured monthly HCl emissions shall be calculated by summing the daily emissions for all operating days in each month. [R307-401-8] II.B.6.g The owner/operator shall follow the data replacement procedure below when the HCl CEMS data are not valid or unavailable due to monitor downtime or because the monitor is out of control, as determined by 40 CFR 60 Appendix F, Procedure 1 and/or 6: Ema = Em * (1 +(1/DA - 1) x C Where: Ema = adjusted monthly HCl emissions, lbs Em = total unadjusted HCl mass emission for the month, prior to data replacement procedure, lb/hr DA = data availability, fraction of operating time for which monitor data is available during the reporting period (e.g. 95% data availability = 0.95) and, C = Conservative Factor = 1.05 = 5% increase. [R307-401-8] II.B.6.h The owner/operator shall record the output of the system for measuring HCl emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emissions Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60 Subpart A and Appendix B, and either Performance Specification PS-18 or Performance Specification PS-15 as applicable and approved by the Director. [R307-401-8] DAQE-IN103130047-23 Page 26 II.B.6.i The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: 1) Except for system breakdown, repairs, calibration checks, and zero and span adjustments required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. Flow measurement shall be in accordance with the requirements of 40 CFR 52; Appendix E, 40 CFR 60 Appendix B; or 40 CFR 75, Appendix A. 2) Initial performance specification test shall be performed within 60 days of installation. The performance specification test shall be conducted in accordance with the procedures contained in 40 CFR 60, Appendix B, Performance Specifications 15 or 18. The Director shall be notified prior to conducting the performance specification test. 3) At no time shall the owner/operators allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107(Breakdowns), UAC. [R307-170] II.B.6.j The owner/operator shall follow the following requirements for stack testing of organic and metal HAPs: A. Emission Units Emission units subject to organic and metal HAPs testing requirements are Kiln #1, Kiln #2, Kiln #3, Kiln #4, and Kiln #5. B. Initial Compliance Testing Initial compliance testing shall be performed as soon as possible and not later than 180 days after the owner/operator commences operation under the AOS. C. Frequency Test every three years. D. Test Method Organic HAPs 40 CFR 60, Appendix A, Method 320 and Method 18, or other EPA-approved testing method acceptable to the Director. E. Test Method Chlorine 40 CFR 60, Appendix A, Method 26A, or other EPA-approved testing method acceptable to the Director. F. Test Method Metal HAPs 40 CFR 60, Appendix A, Method 29, or other EPA-approved testing method acceptable to the Director. G. Other Unless otherwise specified in this Section, the stack requirements in II.B.1.b.2 and II.B.1.b.3 apply. [R307-401-8] DAQE-IN103130047-23 Page 27 II.B.6.k Quarterly reports shall be submitted as outlined in R307-170. The reports shall also include: 1) Total HCl emissions for the cumulative quarters of the current 12-month block. 2) Total HAPs emissions for the cumulative quarters of the current 12-month block. [R307-170, R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN103130044-21 dated May 4, 2021 Is Derived From Source Submitted NOI dated June 14, 2023 Incorporates Additional Information Received dated October 2, 2023 DAQE-IN103130047-23 Page 28 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 12/11/23, 10:38 AM State of Utah Mail - Legal Notice to be published December 13, 2023 https://mail.google.com/mail/u/0/?ik=b4fd0e1085&view=pt&search=all&permmsgid=msg-f:1785007893769648303&simpl=msg-f:1785007893769648303 1/1 Jeree Greenwood <jereeg@utah.gov> Legal Notice to be published December 13, 2023 legals <legals@millardccp.com>Mon, Dec 11, 2023 at 10:36 AM To: Jeree Greenwood <jereeg@utah.gov> Received, thank you. [Quoted text hidden] [Quoted text hidden] <DAQE-NN103130047-23.pdf> DAQE-NN103130047-23 December 7, 2023 Millard County Chronicle Progress Legal Advertising Dept P.O. Box 249 Delta (Millard), UT 84624 RE: Legal Notice of Intent to Approve This letter will confirm the authorization to publish the attached NOTICE in the Millard County Chronicle Progress on December 13, 2023. 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: Six County Association of Governments 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-NN103130047-23 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: Graymont Western US Incorporated Location: Graymont Western US Incorporated - Cricket Mountain Plant – 32 Miles Southwest of Delta, Utah; Highway 257, PO Box 669, Delta (Millard), UT Project Description: Graymont Western US Incorporated submitted a request for updating the chemical stabilizer dust control application. Specifically, that the frequency of application be reduced from a schedule of 3 times a year to 2 times a year. After review, Division of Air Quality determined that the listing of dust control requirements in the Approval Order is redundant. The requirement to maintain a dust control plan is sufficient for the minimization of fugitive dust. With the removal of the listed conditions in the Approval Order, Graymont is free to modify the fugitive dust control plan to incorporate the change in application frequency. No change in equipment, processes or associated emissions will occur. 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 January 12, 2024 will be considered in making the final decision on the approval/disapproval of the proposed project. Email comments will also be accepted at jjenks@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: December 13, 2023 {{#s=Sig_es_:signer1:signature}} Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 2 UTAH DIVISION OF AIR QUALITY ENGINEER REVIEW SOURCE INFORMATION Project Number N103130047 Owner Name Graymont Western US Incorporated Mailing Address 585 West Southridge Way Sandy, UT, 84070 Source Name Graymont Western US Incorporated- Cricket Mountain Plant Source Location 32 Miles Southwest of Delta, Utah; Highway 257 PO Box 669 Delta (Millard), UT 84624 UTM Projection 343,100 m Easting, 4,311,010 m Northing UTM Datum NAD27 UTM Zone UTM Zone 12 SIC Code 1422 (Limestone, Crushed & Broken) Source Contact Nate Stettler Phone Number (801) 598-8076 Email nstettler@graymont.com Billing Contact Hal Lee Phone Number 801-716-2652 Email hlee@graymont.com Project Engineer John Jenks, Engineer Phone Number (385) 306-6510 Email jjenks@utah.gov Notice of Intent (NOI) Submitted No date entered Date of Accepted Application No date entered Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 3 SOURCE DESCRIPTION General Description Graymont Western US Inc. (Graymont) operates the Cricket Mountain Lime Plant in Millard County. The Cricket Mountain Lime Plant consists of quarries and a lime processing plant, which includes five rotary lime kilns (Kilns 1 through 5). The rotary kilns are used to convert crushed limestone ore into quicklime. The products produced for resale are lime, limestone, and kiln dust. The kilns operate on pet coke and coal. Sources of emissions at this source include mining, limestone processing, rotary lime kilns, post-kiln lime handling, and truck & loadout facilities. NSR Classification: Minor Modification at Major Source Source Classification Located in Attainment Area, Millard County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Y: Standards of Performance for Coal Preparation and Processing Plants NSPS (Part 60), HH: Standards of Performance for Lime Manufacturing Plants NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants 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 MACT (Part 63), AAAAA: National Emission Standards for Hazardous Air Pollutants for Lime Manufacturing Plants Title V (Part 70) Major Source Project Proposal Enhanced AO Change to AO DAQE-AN103130044-21 to Correct Fugitive Dust Conditions Project Description Graymont submitted a request for updating the chemical stabilizer dust control application. Specifically, that the frequency of application be reduced from a schedule of 3 times a year to 2 times a year. After review, UDAQ determined that the listing of dust control requirements in the AO is redundant. The requirement to maintain a dust control plan is sufficient for the minimization of fugitive dust. With the removal of the listed conditions in the AO, Graymont is free to modify the fugitive dust control plan to incorporate the change in application frequency. No change in equipment, processes or associated emissions will occur. EMISSION IMPACT ANALYSIS There is no change in emissions associated with this project. No modeling is required. [Last updated October 24, 2023] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 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) CO2 Equivalent 0 887964.00 Carbon Monoxide 0 7821.19 Nitrogen Oxides 0 3883.85 Particulate Matter - PM10 0 611.87 Particulate Matter - PM2.5 0 610.78 Sulfur Oxides 0 760.29 Volatile Organic Compounds 0 117.84 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Acetaldehyde (CAS #75070) 0 1963 Acrolein (CAS #107028) 0 1 Arsenic (TSP) (CAS #7440382) 0 88 Benzene (Including Benzene From Gasoline) (CAS #71432) 0 7734 Cadmium (CAS #7440439) 0 58 Chlorine (CAS #7782505) 0 1078 Chromium Compounds (CAS #CMJ500) 0 1214 Cobalt (TSP) (CAS #7440484) 0 1154 Ethyl Benzene (CAS #100414) 0 488 Formaldehyde (CAS #50000) 0 1612 Hexane (CAS #110543) 0 2566 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 44400 Hydrogen Fluoride (Hydrofluoric Acid) (CAS #7664393) 0 156 Lead (CAS #7439921) 0 1204 Manganese (TSP) (CAS #7439965) 0 546 Mercury (TSP) (CAS #7439976) 0 64 Nickel (CAS #7440020) 0 422 Selenium & Compounds (CAS #253) 0 402 Toluene (CAS #108883) 0 2678 Xylenes (Isomers And Mixture) (CAS #1330207) 0 2562 Change (TPY) Total (TPY) Total HAPs 0 35.19 Note: Change in emissions indicates the difference between previous AO and proposed modification. Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 5 Review of BACT for New/Modified Emission Units 1. BACT review regarding No BACT review required for this project This project represents a clean-up of fugitive dust conditions to remove redundancy. There is no change in equipment, method of operation, or emissions associated with this project. No BACT review is required. [Last updated October 24, 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 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 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] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 6 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 Lime Manufacturing Plant [All equipment designation numbers are those used by Graymont Western U.S. Inc.] II.A.2 K-1 Kiln Rotary Lime Kiln #1 rated at 600 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-85) rated at an exhaust gas flow rate 54,000 scfm and an Air to Cloth (A/C) ratio of 3.26:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.3 K-2 Kiln Rotary Lime Kiln #2 rated at 600 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-275) rated at an exhaust gas flow rate of 48,000 scfm and an A/C ratio of 2.9:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.4 K-3 Kiln Rotary Lime Kiln #3 rated at 840 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-375) rated at an exhaust gas flow rate of 55,000 scfm and a A/C ratio of 2.49:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.5 K-4 Kiln Rotary Lime Kiln #4 rated at 1266 tons of lime per 24-hour period with a preheater, cyclone and baghouse emissions control system (D-485) rated at an exhaust gas flow rate of 100,000 scfm and an A/C ratio of 5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.6 K-5 Kiln Rotary Lime Kiln #5 rated at 1400 tons of lime per 24-hour period with a preheater and baghouse emissions control system (D-585) rated at an exhaust gas flow rate of 103,000 scfm and an A/C ratio of 3.5:1. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.7 KDE-1 Kiln Drive Engine Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 7 II.A.8 KDE-2 Kiln Drive Engine Rating: 45 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.9 KDE-3 Kiln Drive Engine Rating: 55 hp Fuel: Gasoline MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.10 KDE-4 Kiln Drive Engine Rating: 65 hp Fuel: Diesel Manufacture Date: Pre 12/19/2002 MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.11 KDE-5 Kiln Drive Engine Rating: 173.5 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.12 D-91 Coal Silo Baghouse For Kiln #1 Exhaust gas flow rate: 1,000 scfm II.A.13 D-94 Coal Silo Baghouse For Kiln #2 Exhaust gas flow rate: 1,000 scfm II.A.14 D-391 Coal Silo Baghouse For Kiln #3 Exhaust gas flow rate: 1,000 scfm II.A.15 D-491 Coal Silo Baghouse For Kiln #4 Exhaust gas flow rate: 1,500 scfm II.A.16 D-591 Coal Silo Baghouse For Kiln #5 Exhaust gas flow rate: 1,000 acfm II.A.17 D-331 Product Baghouse For Kiln #1, #2 loadout area and screenhouse dust collector Exhaust gas flow rate: 32,000 scfm Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 8 II.A.18 D-330 Product Baghouse For Kiln #3 cooler pit dust collector Exhaust gas flow rate: 11,000 scfm II.A.19 D-447 Product Baghouse For Kiln #4 cooler and screenhouse dust collector Exhaust gas flow rate: 18,300 scfm II.A.20 D-463 Product Baghouse For Kiln #4 product loadout and C-463 dust collector Exhaust gas flow rate: 8,300 scfm II.A.21 D-341 Product Baghouse For Silo T-341 Exhaust gas flow rate: 2,000 scfm II.A.22 D-530 Product Baghouse Product handling baghouse #1 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.23 D-564 Product Baghouse Product handling baghouse #2 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.24 D-547 Product Baghouse Product handling baghouse #3 for Kiln #5 screen house Exhaust gas flow rate: 9,000 acfm II.A.25 D-83 Lime Kiln Dust Silo Baghouse For Kilns #1 and #2 Exhaust gas flow rate: 6,000 scfm II.A.26 D-489 Lime Kiln Dust Silo Baghouse For Kilns #4 lime kiln dust silo Exhaust gas flow rate: 6,000 scfm II.A.27 D-486 Lime Kiln Dust Silo Baghouse For Kiln #4 Exhaust gas flow rate: 4,000 scfm II.A.28 D-466 Lime Kiln Dust Silo Baghouse For lime kiln dust silo Exhaust gas flow rate: 4,000 scfm II.A.29 D-586 Lime Kiln Dust Silo Baghouse For Kiln #5 dust silo Exhaust gas flow rate: 2,500 scfm Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 9 II.A.30 D-589 Lime Kiln Dust Silo Baghouse For loadout of Kiln #5 dust silo Exhaust gas flow rate: 1,500 scfm II.A.31 T-381 Lime Kiln Dust Silo Maximum Capacity: 300 tons II.A.32 D-381 Lime Kiln Dust Silo Baghouse For 300-ton lime kiln dust silo (T-381) Exhaust gas flow rate: 3,000 scfm II.A.33 T-381 Loadout Spout For 300-ton lime kiln dust silo (T-381) II.A.34 D-382 Loadout Spout (T-381) Baghouse For Loadout Spout (T-381) Exhaust gas flow rate: 2,000 scfm II.A.35 D-333 Product Loadout Baghouse For rail loadout Exhaust gas flow rate: 10,000 scfm II.A.36 D-10 Limestone Ore Preparation Baghouse For stone reclaim screen for Kiln #1 & #2 Exhaust gas flow rate: 8,000 scfm II.A.37 D-310 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #3 Exhaust gas flow rate: 8,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.38 D-414 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #4 Exhaust gas flow rate: 3,100 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.39 D-514 Limestone Ore Processing Baghouse For stone dressing screen for Kiln #5 Exhaust gas flow rate: 4,500 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.40 D-1 Limestone Ore Processing Baghouse For quarry crusher & screen Exhaust gas flow rate: 28,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 10 II.A.41 D-503 Conveying System For dust collection for Kiln #5 limestone conveyor transfer points Exhaust flow rate: 2,000 acfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.42 D-403 Conveying System For stone dump from conveyor 408 & 409 to reclaim pile Exhaust gas flow rate: 2,200 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.43 D-415 Conveying System with Baghouse For limestone dump to Kiln #4 preheater Exhaust gas flow rate: 600 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.44 D-479 Dolomitic Lime Handling System Baghouse Product transfer baghouse to S-471, T-471, T-472, T-473, and T-474. The 435 material handling system consists of 2 elevators, a vibratory conveyor, a number of belt conveyors, and a mixing screw conveyor Exhaust gas flow rate: 4,300 scfm II.A.45 R-486 Dolomite Crusher Rating: 40 tons/hr II.A.46 N-470 Dolomitic Lime Handling System Recycle Bin II.A.47 Processed Stone Handling (PSH) Operations Operations to transport material from storage piles (fines, small stone, medium stone, large stone [sugar]) to kiln preheaters. Includes bins, bin transfer points, preheater transfer points, and conveyors. NESHAP Applicability: 40 CFR 63 Subpart AAAAA II.A.48 Sugar Stone System System to store, screen and load sugar stones. Includes a hopper (HP-1), screen (S-2), loadout system (203255SSS001), conveyors (C-MISC2), and generator (GEN-1). II.A.49 HP-1 Hopper Sugar Stone System II.A.50 S-2 Screen Sugar Stone System NSPS Applicability: 40 CFR 60 Subpart OOO II.A.51 Loadout Sugar Stone System Rail Loadout Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 11 II.A.52 C-MISC2 Sugars Stone System Miscellaneous Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO II.A.53 GEN-1 Generator Sugar Stone System Rating: 130.1 hp Fuel: Diesel MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.54 Portable Crusher System (PCS) Includes hopper, crushers (PCS-1), hopper (HP-2), generator (PCS-4), and conveyors. II.A.55 PCS Hopper Feed Hopper II.A.56 PCS-1 Crusher System ICR101: Primary Crusher Capacity: 690 tons/hr ICR102: Secondary Crusher Capacity: 690 tons/hr NSPS Applicability: 40 CFR 60 Subpart OOO II.A.57 PCS-2 Screen/Conveyor Transfer Points Screen and material transfer points to and from conveyor belts. NSPS Applicability: 40 CFR 60 Subpart OOO II.A.58 PCS-3 Conveyor Drop Points Material drop points to the fines and product stockpiles NSPS Applicability: 40 CFR 60 Subpart OOO II.A.59 PCS-4 Generator Portable Crusher System Quantity: 3 Rating: 740 hp combined Fuel: Diesel II.A.60 PCS Conveyors NSPS Applicability: 40 CFR 60 Subpart OOO II.A.61 D-7122 Limestone Grinding Plant Baghouse For grinding mill, direct-fire heater, material separator Exhaust gas flow rate: 10,000 scfm NSPS Applicability: 40 CFR 60 Subpart OOO Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 12 II.A.62 D-7133 Limestone Grinding Plant Baghouse For screen, three bucket elevators, three storage silos Exhaust gas flow rate: 4,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.63 D-7141 Limestone Grinding Plant Baghouse For truck load-out and rail load-out Exhaust gas flow rate: 3,500 scfm NSPS Applicability: 40 CFR 60 Subpart OOO II.A.64 C-MISC1 Limestone Grinding Plant Miscellaneous Conveyors II.A.65 D-488 Briquetter and Crusher Baghouse For crusher (R-486), briquetters (BRI-474 and BRI-014), and silo (T-470) Exhaust gas flow rate: 1,700 scfm II.A.66 BRI-474 Briquetter II.A.67 BRI-014 Briquetter II.A.68 C-045 Conveying System Fines Truck Loadout Conveyor - 250 tons/hr II.A.69 C-305 Conveying System Medium and Small Stone Pile Conveyor - 600 tons/hr II.A.70 S-466 Screen Dolomitic Screen II.A.71 C-Coal Handling Miscellaneous Conveyors II.A.72 Feeder-Coal Handling Four Vibratory Feeders II.A.73 PW Portable Pressure Washer Rating: 18 hp Fuel: Gasoline II.A.74 HR-1 Haul Road Quarry to plant and plant to highway. Length: 6 miles II.A.75 HR-2 Haul Road Inside quarry Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 13 II.A.76 Limestone Fines Product (LFP) Loadout System Includes a screen hopper, screen, screen conveyors, tent storage area, product loadout hopper, product loadout conveyor, and engines (CAT4.4 and V3600-T). II.A.77 LFP - Engines CAT 4.4 Generator Rating: 130 hp Kubota V3600-T Generator Rating: 52 hp Fuel: Diesel NSPS Applicability: 40 CFR 60 Subpart IIII MACT Applicability: 40 CFR 63 Subpart ZZZZ II.A.78 LFP-1 Hopper Capacity: 250 ton/hour II.A.79 LFP-2 Screen Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.80 LFP-3 Conveyors Capacity: 250 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.81 LFP-4 Storage Tent storage area II.A.82 LFP-5 Hopper Product loadout hopper Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.83 LFP-6 Conveyor Product Loadout Conveyor Capacity: 100 ton/hour NSPS Applicability: 40 CFR 60 Subpart OOO II.A.84 Stationary Pressure Washer Rating: 0.4 MMBtu/hr Fuel: Propane Listed for information purposes only II.A.85 Fuel Storage Tanks Four 10,150-gallon diesel storage tanks One 12,000-gallon diesel storage tank One 2,000-gallon gasoline storage tank One 500-gallon gasoline storage tank Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 14 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 Sitewide Requirements II.B.1.a The following limits shall not be exceeded: A. For Kilns #1, #2, #3, #4 and #5 collectively: 1) 1,516,250 tons lime per rolling 12-month period 2) 4,706 tons lime per day B. Sugar Stone System 1) 135,000 tons of sugar stone per rolling 12-month period 2) 750 hours of operation for the 130.1 hp generator per rolling 12-month period C. Portable Crushing System 1) 750,000 tons of limestone per rolling 12-month period 2) 4,000 hours of operation per rolling 12-month period D. Truck hauling of stone from the quarry to the plant 1) No more than 108 rounds trips per day (midnight to midnight) 24-hour period. E. Limestone Fines Product Loadout Process 1) 200,000 tons of limestone per rolling 12-month period 2) 6,500 hours of operation per rolling 12-month period [R307-401] II.B.1.a.1 Compliance with the above 12-month production limitations shall be determined on a rolling 12-month total. Calculations for the 12-month production shall be completed within 25 calendar days from the end of the previous month. Records of production shall be kept for all periods when the plant is in operation. Production shall be determined by plant production records, such as scale records or sales receipts. Hours of operation and number of truck trips shall be determined by records of operation. The records shall be kept on a daily basis. [R307- 401-8] II.B.1.b Emissions to the atmosphere from the indicated emission point shall not exceed the following Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 15 rates and concentrations (standardized at 68 oF, 29.92 in Hg) (lbs/tsf = pounds per ton of stone fed): Emission Point: Kiln #1 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 0.020 0.12 PM10 (Filterable + Condensable) 6.0 0.016 SO2 22.4 NOx 90.0 Emission Point: Kiln #2 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 8.23 0.020 0.12 PM10 (Filterable + Condensable) 6.58 0.016 SO2 22.4 NOx 120.0 Emission Point: Kiln #3 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 7.49 0.020 0.10 PM10 (Filterable + Condensable) 7.54 0.016 SO2 27.2 NOx 160.0 Emission Point: Kiln #4 Baghouse Stack Pollutant lb/hr grain/dscf lbs/tsf TSP 17.14 0.020 0.12 PM10 (Filterable + Condensable) 13.7 0.016 SO2 38.4 NOx 200.0 Emission Point: Kiln #5 Baghouse Stack Pollutant lb/hr grain/dscf Other TSP 0.020 0.10 lbs/tsf PM10 (Filterable + Condensable) 11.7 0.016 SO2 59.0 1.01 lb/ton lime NOx 210.0 3.60 lb/ton lime CO 233.0 4.00 lb/ton lime Emission Point: Briquetter and Crusher Baghouse (D-488) Stack Pollutant lb/hr grain/dscf Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 16 TSP 0.29 0.020 PM10 (Filterable) 0.15 0.010 PM2.5 (Filterable) 0.15 0.010 After the installation of an SO2 CEMS, compliance with the SO2 emission limit will be based on a 3-hour block average. Testing for compliance with the lb/ton lime limits must comply with all stack testing requirements. [R307-401] II.B.1.b.1 Stack testing to show compliance with the emission limitations stated in the above condition shall be performed as specified below: Emission Point Pollutant Status Test Frequency Kiln #1 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #2 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx * + Emission Point Pollutant Status Test Frequency Kiln #3 Baghouse Stack TSP *** + PM10 *** + SO2 * + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #4 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + Emission Point Pollutant Status Test Frequency Kiln #5 Baghouse Stack TSP *** + PM10 *** + SO2 *** + NOx *** + CO *** + Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 17 Emission Point Pollutant Status Test Frequency (D-488) Baghouse Stack TSP *** + PM10 *** + PM2.5 (Filterable)*** + * No Initial Testing was required. The source shall be tested if directed by the Director at any time. ** Initial compliance testing is required. The initial test date shall be performed as soon as possible and in no case later than 180 days after the startup of a new emission source, an existing source without an AO, or the granting of an AO to an existing emission source that has not had an initial compliance test performed. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. *** Initial compliance testing was required and completed. + Test every three years. The Director may require testing at any time. [R307-401] II.B.1.b.2 A. Notification The Director shall be notified at least 60 days prior to conducting any required emission testing for sources subject to 40 CFR 63 Subpart AAAAA. All other sources shall notify the Director at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ when the testing notification is submitted to the Director. The source test protocol shall be approved by the Director prior to performing the test(s). The source test protocol shall outline the proposed test methodologies, stack to be tested, and procedures to be used. A pretest conference shall be held, if directed by the Director. B. Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other methods as approved by the Director. An Occupational Safety and Health Administration (OSHA) or Mine Safety and Health Administration (MSHA) approved access shall be provided to the test location. C. Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing method acceptable to the Director. D. Total Suspended Particulate (TSP) 40 CFR 60, Appendix A, Method 5 or other EPA-approved testing method acceptable to the Director. E. PM10 (Filterable + Condensable) Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 18 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201, 201a, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA approved method acceptable by the Director. All particulate captured shall be considered PM10. For stacks in which liquid drops are present, methods to eliminate the liquid drops should be explored. If no reasonable method to eliminate the drops exists, then the following methods shall be used: 40 CFR 60, Appendix A, Method 5, 5a, 5d, or 5e as appropriate, or other EPA approved method as acceptable to the Director. The back half condensables shall also be tested using the EPA method as acceptable to the Director. The portion of the front half of the catch considered PM10 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director. F. PM2.5 (Filterable) 40 CFR 60, Appendix A, Method 5; 40 CFR 51, Appendix M, Method 201A or other EPA- approved testing method as acceptable to the Director. If other approved testing methods are used which cannot measure the PM2.5 fraction of the filterable particulate emissions, all of the filterable particulate emissions shall be considered PM2.5. The portion of the front half of the catch considered PM2.5 shall be based on information in Appendix B of the fifth edition of the EPA document, AP-42, or other data acceptable to the Director. G. Sulfur Dioxide (SO2) 40 CFR 60, Appendix A, Method 6, 6A, 6B, 6C, or other EPA-approved testing method acceptable to the Director. H. Nitrogen Oxides (NOx) 40 CFR 60, Appendix A, Method 7, 7A, 7B, 7C, 7D, 7E, or other EPA approved method as acceptable to the Director. I. Carbon Monoxide (CO) 40 CFR 60, Appendix A, Method 10, or other EPA approved method as acceptable to the Director. [R307-401] II.B.1.b.3 J. Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods above shall be multiplied by the volumetric flow rate and any necessary conversion factors determined by the Director, to give the results in the specified units of the emission limitation. To determine emission rates in units of lbs/ton lime, the emission rate in lbs/hour shall be divided by the tons/hour lime production rate. Lime production rate shall either be a direct measurement or shall be calculated using the following conversion factor: 2 tons of limestone feed equates to 1 ton of lime produced (2 tons limestone: 1 ton lime). Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 19 K. New Source Operation For a new source/emission point, the production rate during all compliance testing shall be no less than 90% of the production rate listed in this AO. If the maximum AO allowable production rate has not been achieved at the time of the test, the following procedure shall be followed: 1) Testing shall be at no less than 90% of the production rate achieved to date. 2) If the test is passed, the new maximum allowable production rate shall be 110% of the tested achieved rate, but not more than the maximum allowable production rate. This new allowable maximum production rate shall remain in effect until successfully tested at a higher rate. 3) The owner/operator shall request a higher production rate when necessary. Testing at no less than 90% of the higher rate shall be conducted. A new maximum production rate (110% of the new rate) will then be allowed if the test is successful. This process may be repeated until the maximum AO production rate is achieved. L. Existing Source Operation For the existing kilns, the production rate during all compliance testing shall be no less than 90% of the maximum production achieved in the previous three (3) years. M. Reporting The results of stack testing shall be submitted to the Director within 60 days of completion of the testing. Reports shall clearly identify results as compared to permit limits and indicate compliance status. [R307-165, R307-401] II.B.1.c Visible emissions from the following emission points shall not exceed the following opacity values: A. Kilns #1, #2, #3, #4, and #5 15% B. All ancillary silo and storage bin baghouses 10% C. Product baghouses 10 % D. Subpart OOO baghouses 7% E. All non-OOO crushers 15% F. All non-OOO screens 10% G. All non-OOO conveyor transfer points 10% H. Subpart OOO crushers* i. Post-April 22, 2008 12% ii. Pre-April 22, 2008 15% I. Subpart OOO screens* Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 20 i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% J. Subpart OOO conveyor transfer points* i. Post-April 22, 2008 7% ii. Pre-April 22, 2008 10% K. All diesel engines 20% L. Conveyor drop points 20% M. PSH operations stack emissions 7% N. PSH operations fugitive emissions 10% O. All other points sources 20% *Opacity limits from 40 CFR 60 Subpart OOO shown as "Post-April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after April 22, 2008 and "Pre- April 22, 2008" applies to emission units constructed, modified, or reconstructed on or after August 31, 1983 but before April 22, 2008. Opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. For sources that are subject to NSPS, opacity shall be determined by conducting observations in accordance with 40 CFR 60.11(b) and 40 CFR 60, Appendix A, Method 9. Visible emissions from haul road traffic shall be minimized in accordance with the fugitive dust control plan. [R307-401] II.B.1.c.1 The owner/operator shall make at least one visual opacity survey each quarter for each kiln drive engine. The visual opacity survey shall be performed while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. The individual is not required to be a certified visual emissions observer (VEO). If visible emissions are observed from an emission unit, an opacity determination of that emission unit shall be performed by a certified observer within 24 hours of the initial survey. The opacity determination shall be performed in accordance with 40 CFR 60, Appendix A, Method 9. The owner/operator shall maintain a log of the visual opacity surveys, opacity determinations, and all data required by 40 CFR 60, Appendix A, Method 9. [R307-401] II.B.2 Fuel Requirements II.B.2.a The owner/operator shall use coal as the primary fuel, except a combination of coal and petroleum coke (pet coke) may be used in Kilns #1 and #5, and propane and fuel oil as a startup fuel in all kilns. Prior to burning petroleum coke in Kilns #1 and #5 or coal with a sulfur content in excess of 1.0 lb/MMBTU in Kilns #1, #2, #3, #4, or #5, an SO2 CEM must be installed, calibrated, and operating on that kiln. [R307-401] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 21 II.B.2.b The owner/operator shall use propane, diesel, and used oil in any combination in the direct fire heating system for the limestone grinding plant. [R307-401] II.B.2.c The sulfur content of any coal or any mixture of coals burned shall not exceed 1.0 pounds of sulfur per MMBTU heat input. Sulfur content shall be determined by the owner/operator or the coal supplier using ASTM Method D3174-12(2018), D3176-15, D4239-18e1, D5016-16 or an approved equivalent ASTM Method. If the owner/operator chooses supplier certification, the sulfur content shall be tested quarterly from a composite sample. If the owner/operator chooses to test the sulfur content of the coal, the composite sample shall be tested quarterly from a composite grab sample taken every 24 hours of operation. Records, or supplier furnished certifications, of this testing shall be kept on-site for a period of five (5) years and be provided to the Director upon request. After a SO2 CEMS has been installed, calibrated, and is operating on a kiln, the coal that is burned in that kiln is exempt from the 1.0 pounds of sulfur per MMBTU heat input limitation of UAC R307-203-1(1). [R307-203-1] II.B.2.d Except for diesel, the sulfur content of any fuel oil burned as a startup fuel in all kilns shall not exceed 0.85 pounds of sulfur per MMBTU heat input. Sulfur content shall be decided by ASTM Method D-3175-75, or an approved equivalent. The sulfur content shall be tested if directed by the Director. [R307-401] II.B.2.e The air heating combustor burning used oil for energy recovery shall comply with the following: A. The concentration/parameters of contaminants in any used oil burned as fuel shall not exceed the following levels: 1) Arsenic 5 ppm by weight 2) Cadmium 2 ppm by weight 3) Chromium 10 ppm by weight 4) Lead 100 ppm by weight 5) Total halogens 1,000 ppm by weight 6) Sulfur 0.50 percent by weight B. The flash point of all used oil to be burned as fuel shall not be less than 100 degrees F C. Used oil that does not exceed any of the listed contaminants content may be burned. The owner/operator shall record the quantities of oil burned. D. Sources utilizing used oil as a fuel shall comply with the State Division of Waste Management and Radiation Control in accordance with R315-15, UAC. [R307-401] II.B.2.f The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as fuel in the KDE-1, KDE-2, KDE-4, and KDE-5 drive engines; GEN-1 engine; portable generators; and LFP engines. [R307-401-8] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 22 II.B.2.g 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.2.g.1 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] II.B.3 SO2 and Opacity CEMS Requirements II.B.3.a The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system for the continuous measurement of opacity on kiln stacks #1, #2, #3, #4 and #5. The owner/operator shall record the output of the system for measuring the opacity of emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emission Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60, Appendix B, Specification 1 - Opacity. [R307-170] II.B.3.b NEW The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system (consisting of a SO2 pollutant concentration monitor and a flow monitoring device) for the continuous measurement of SO2 emissions on a kiln if that kiln burns pet coke or coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu. The owner/operator shall record the output of the system for measuring SO2 emissions. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 50 Appendix B, Performance Specifications 2 - SO2 and NOx Continuous Emission Monitoring Systems [R307-170] II.B.3.c When a SO2 CEMS has been installed calibrated, and is operating, the emission rate of SO2 in pounds per hour measured by the SO2 CEMS for each 3-hour block averaging period will be calculated by the following formula: Eh = K * Chp * Qhs * [(100 - %H2O)/100] Where: Eh = hourly SO2 mass emission rate during unit operation, lb/hr K = 1.66 E-7 for SO2, lb/scf/ppm Chp = hourly average SO2 concentration during unit operation, ppm (dry) Qhs = hourly average volumetric flow rate during unit operation, scfh (wet) %H2O = constant moisture value specific to each kiln, percent by volume. [R307-401] II.B.3.d All continuous opacity monitoring devices as required in federal regulations and state rules shall be installed and operational prior to placing the affected source in operation. SO2 CEMS shall be installed and operational on a kiln prior to that kiln burning coal with a sulfur content in excess of 1.0 lb Sulfur/MMBtu or burning pet coke. Except for system breakdown, repairs, calibration checks, and zero and span adjustments Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 23 required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. [40 CFR 60, R307-170] II.B.3.e The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: A. Opacity Monitors and SO2 CEMS 1) Shall operate in accordance with 40 CFR 60.13 and R307-170 UAC. 2) Prior to installation of a SO2 CEMS on a kiln, the average of three one-hour stack test results are less than the corresponding SO2 emission limit for that kiln. 3) After installation of the SO2 CEMS on a kiln, the 3-hour block average is less than the corresponding SO2 emission limit for that kiln. 4) Three-hour block averages will begin on 12:01 am and end every 3 hours, thereafter. B. Excess Emission Requirements 1) At no time shall the owner/operator allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107 (Breakdowns), UAC. C. Reporting 1) All sources required to install a continuous emission monitor shall submit a quarterly report in an electronic format provided by the DAQ. 2) All exceedances are to be reported in the quarterly report with explanations R307-170-8 Reason Categories, UAC) and corrective actions. [40 CFR 60, R307-170] II.B.4 Haul Roads and Fugitive Dust Requirements II.B.4.a NEW The owner/operator shall implement a fugitive dust control plan acceptable to the Director for control of all dust sources associated with the Cricket Mountain Plant. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being implemented to control fugitive dust. At least once during each permit term, the fugitive dust control plan shall be reviewed and evaluated. If the plan review indicates changes to the dust control plan are necessary to reflect current site operations, an updated fugitive dust control plan shall be submitted. The owner/operator shall operate in accordance with the most current fugitive dust control plan approved by the Director. For each plan review, a record of the date and results of the review shall be maintained. Records that demonstrate compliance with the most recently approved fugitive dust control plan shall also be maintained. [R307-401] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 24 II.B.5 Other Baghouse Requirements II.B.5.a The pressure drop on the Briquetter and Crusher (D-488) Baghouses shall not be less than 4.0 inches of water column or more than 8.0 inches of water column. [R307-401-8] II.B.5.a.1 The pressure drop shall be monitored and recorded weekly, while the unit is operating with equipment located such that an inspector/operator can safely read the output at any time. [R307-401-8] II.B.5.a.2 All instruments shall be calibrated according to the manufacturer's instructions at least once every 12 months. [R307-401-8] II.B.6 Alternate Operating Scenario for Synthetic HAPs Minor Operations II.B.6.a This Section contains the requirements for the AOS. If the owner/operator chooses to comply with the AOS requirements in this Section, the source will be reclassified as an area source of HAPs as defined in 40 CFR 63.2 effective on the date that AOS operations commence. Once reclassified, the requirements of 40 CFR 63 Subpart AAAAA will no longer apply. Once effective, the limits of the AOS shall apply permanently and a modification to the AO will be required should the owner/operator need to remove or modify these limits. All other requirements in this AO will continue to apply. The AOS limits will be applied in addition to the requirements in II.B.1 through II.B.5. [R307-401-8] II.B.6.b The owner/operator shall notify the Director at least 30 days prior to the effective date on which operations will commence under the AOS requirements specified in this section of the AO. The notification shall include: 1. Test results for HCl and total organic HAPs that demonstrate the source meets the definition of area source given in 40 CFR 63.2. Methods for measuring HCl and total HAPs shall be those specified in 40 CFR 63.7142, or other EPA-approved methods, as acceptable to the Director. Documentation of the testing shall be maintained. 2. Date when operations will commence under the AOS and the AOS conditions limiting HAPs emissions become effective. 3. Proposed schedule for CEMS installation. [R307-401-8] II.B.6.c Under the AOS, the owner/operator shall limit facility-wide emissions to: A) 9.5 tons of HCl per 12-month block period B) 24 tons of total HAPs per 12-month block period Total HAPs emissions must include the following compounds: 1) Organic HAPs: acetaldehyde benzene, chlorine, ethylbenzene, formaldehyde, hexane, toluene, and xylenes. 2) Metal HAPs: arsenic, cadmium, chromium compounds, cobalt, lead, manganese, mercury, nickel, and selenium. 3) HCl. [R307-401-8] II.B.6.c.1 To determine compliance with the 12-month block total, the owner/operator shall calculate a monthly total by the twenty-fifth day of each month using data from the previous month. The monthly totals shall be added to determine HCl and total HAPs emissions for the current 12- Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 25 month block. The 12-month block period starts on the day that the owner/operator commences operations under the AOS. A new 12-month block period will begin each year on the date AOS operations commenced. [R307-401-8] II.B.6.c.2 The owner/operator shall demonstrate compliance with the HCl emission limit using CEMS data as outlined in Condition II.B.6.f, except as specified in II.B.6.e. The HCl CEMS shall operate for all periods the kilns are in operation. Records, including CEMS data and calculated emissions, shall be tabulated for each day. [R307-401-8] II.B.6.c.3 The owner/operator shall demonstrate compliance with the total HAPs limit using the following data: A. HCl CEMS data, as per II.B.6.c.2 B. Emission rates in lbs/hr measured in the most recent stack test for organic HAPs and metal HAPs. Stack testing requirements are specified in II.B.6.j. C. Monthly hours of operations. Hours of operation shall be determined by records of operation and shall be kept on a daily basis. [R307-401-8] II.B.6.d The owner/operator shall install, calibrate, maintain, and continuously operate a continuous emissions monitoring system(s) for the continuous measurement of HCl emissions on Kilns #1-#5. The CEMS(s) shall be installed and used as the primary method of compliance within 180 days from the date the owner/operator commences operation under the AOS. At a minimum, the HCl CEMS shall consist of HCl concentration monitor(s) for each kiln, flow monitors, and a data acquisition system capable of recording measurements from Kilns 1#-#5. [R307-401-8] II.B.6.e If the CEMS are not in operation when the owner/operator commences operation under the AOS, compliance with the HCl emission limit shall be demonstrated as follows for the first 180 days of operation under the AOS: A. Emissions shall be estimated by multiplying the lime throughput (tons/month) for each kiln by HCl emission factors. B. The following emission factors shall be used: i. 1.67E-1 lbs HCl/ton of lime for the dolomitic lime line ii. 1.26E-1 lbs HCl/ton of lime for the high calcium line. [R307-401-8] II.B.6.f When the HCl CEMS have been installed calibrated, and are operating, HCl emissions shall be calculated as follows for each kiln: A. Hourly HCl emissions (Eh) shall be calculated using CEMS data as follows: Eh = K * C * Q Where: Eh = hourly HCl mass emission rate during unit operation, lb/hr K = 9.46E-8 for HCl, lb/scf/ppm C = HCl concentration averaged for each one-hour period, ppmvw, as measured by the CEMS Q = volumetric flow rate averaged for each one-hour period, scfh (wet) Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 26 B. The daily HCl emissions (Ed) in pounds shall be calculated by summing the hourly HCl emissions (Eh) during measured during the day. For purposes of this subsection, a "day" is defined as a period of 24-hours commencing at midnight and ending the following midnight. C. Measured monthly HCl emissions shall be calculated by summing the daily emissions for all operating days in each month. [R307-401-8] II.B.6.g The owner/operator shall follow the data replacement procedure below when the HCl CEMS data are not valid or unavailable due to monitor downtime or because the monitor is out of control, as determined by 40 CFR 60 Appendix F, Procedure 1 and/or 6: Ema = Em * (1 +(1/DA - 1) x C Where: Ema = adjusted monthly HCl emissions, lbs Em = total unadjusted HCl mass emission for the month, prior to data replacement procedure, lb/hr DA = data availability, fraction of operating time for which monitor data is available during the reporting period (e.g. 95% data availability = 0.95) and, C = Conservative Factor = 1.05 = 5% increase. [R307-401-8] II.B.6.h The owner/operator shall record the output of the system for measuring HCl emissions. The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emissions Monitoring Systems. The monitoring system shall comply with all applicable sections of R307-170, UAC and 40 CFR 60 Subpart A and Appendix B, and either Performance Specification PS-18 or Performance Specification PS-15 as applicable and approved by the Director. [R307-401-8] II.B.6.i The Director shall consider the continuous monitoring requirements to be met when the following provisions are met: 1) Except for system breakdown, repairs, calibration checks, and zero and span adjustments required under 40 CFR 60.13(d), the owner/operator of an affected source shall continuously operate all required continuous monitoring devices and shall meet minimum frequency of operation requirements as outlined in 40 CFR 60.13(e) and R307-170, UAC. Flow measurement shall be in accordance with the requirements of 40 CFR 52; Appendix E, 40 CFR 60 Appendix B; or 40 CFR 75, Appendix A. 2) Initial performance specification test shall be performed within 60 days of installation. The performance specification test shall be conducted in accordance with the procedures contained in 40 CFR 60, Appendix B, Performance Specifications 15 or 18. The Director shall be notified prior to conducting the performance specification test. 3) At no time shall the owner/operators allow excess gaseous emissions to be emitted to the atmosphere, except as provided by the provisions of R307-107(Breakdowns), UAC. [R307-170] II.B.6.j The owner/operator shall follow the following requirements for stack testing of organic and Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 27 metal HAPs: A. Emission Units Emission units subject to organic and metal HAPs testing requirements are Kiln #1, Kiln #2, Kiln #3, Kiln #4, and Kiln #5. B. Initial Compliance Testing Initial compliance testing shall be performed as soon as possible and not later than 180 days after the owner/operator commences operation under the AOS. C. Frequency Test every three years D. Test Method Organic HAPs 40 CFR 60, Appendix A, Method 320 and Method 18, or other EPA-approved testing method acceptable to the Director. E. Test Method Chlorine 40 CFR 60, Appendix A, Method 26A, or other EPA-approved testing method acceptable to the Director. F. Test Method Metal HAPs 40 CFR 60, Appendix A, Method 29, or other EPA-approved testing method acceptable to the Director. G. Other Unless otherwise specified in this Section, the stack requirements in II.B.1.b.2 and II.B.1.b.3 apply. [R307-401-8] II.B.6.k Quarterly reports shall be submitted as outlined in R307-170. The reports shall also include: 1) Total HCl emissions for the cumulative quarters of the current 12-month block. 2) Total HAPs emissions for the cumulative quarters of the current 12-month block. [R307-170, R307-401-8] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 28 PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the following documents: Is Derived From Source Submitted NOI dated December 14, 2021 Incorporates Additional Information Received dated October 2, 2023 Supersedes DAQE-AN103130044-21 dated May 4, 2021 REVIEWER COMMENTS 1. Comment regarding Changes in fugitive dust requirements.: The conditions being removed or changed by this project are redundant with existing condition II.B.4.h (since renumbered to II.B.4.b) - the requirement to abide by a fugitive dust control plan. As these conditions are redundant, there is no relaxation in permit requirements through their removal. Condition II.B.4.b has been updated as follows: "The owner/operator shall implement a fugitive dust control plan acceptable to the Director for control of all dust sources associated with the Cricket Mountain Plant. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being implemented to control fugitive dust. At least once during each permit term, the fugitive dust control plan shall be reviewed and evaluated. If the plan review indicates changes to the dust control plan are necessary to reflect current site operations, an updated fugitive dust control plan shall be submitted. The owner/operator shall operate in accordance with the most current fugitive dust control plan approved by the Director. For each plan review, a record of the date and results of the review shall be maintained. Records that demonstrate compliance with the most recently approved fugitive dust control plan shall also be maintained." This addresses the requirements of Title V and the Regional Haze SIP. [Last updated October 24, 2023] 2. Comment regarding Changes in conditions: The following changes are made by this project: 1. Condition II.B.1.c removed subcondition P. This is an internal reference to Section II.B.4 which covers the requirements for fugitive dust and haul roads. It has no specific compliance requirement by itself. 2. Condition II.B.3.b removed the sentence "The monitoring system shall operate continuously in accordance with the DAQ Policy Document for Continuous Emissions Monitoring Systems." This document is no longer applicable as 40 CFR 60 subpart A and Appendix B cover the necessary requirements. 3. Conditions II.B.4.a through II.B.4.f have been removed and Conditions II.B.4.g and II.B.4.h have been appropriately renumbered. These existing conditions are redundant with the requirement of existing condition II.B.4.h (now renumbered as II.B.4.b) which outlines the need for a fugitive dust control plan. The fugitive dust control plan maintains the same set of requirements as Conditions II.B.4.a through II.B.4.f - with the added benefit of periodic review and updating. 4. Condition II.A.85 will be updated to include 6 storage tanks previously left off the AO. These are not new tanks, they are existing tanks mistakenly left off the equipment list. 5. Condition I.8 is no longer necessary as Graymont has completed installation of the listed equipment. 6. Condition II.B.6.c.1 has been changed to require record submission by the 25th day of the month. This aligns it with the submission requirements of condition II.B.1.a.1 Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 29 7. Condition II.B.6.k has been changed to clarify that the required records are for the cumulative quarters of the current 12-month block. [Last updated November 20, 2023] Engineer Review N103130047: Graymont Western US Incorporated- Cricket Mountain Plant October 24, 2023 Page 30 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 December 14, 2021 Mr. Jon Black Attn: Permitting Utah Division of Air Quality 195 North 1950 West Salt Lake City, UT 84116 RE: Notification of Intent: Graymont Western US Incorporated – Cricket Mountain Plant Dear Mr. Black: Graymont Western US Incorporated (Graymont) is submitting a Notice of Intent (NOI) for the Cricket Mountain Lime Plant (Cricket Mountain) located on Highway 257, 32 miles southwest of Delta, Utah 84624. This NOI is being submitted to request a change to the existing Fugitive Dust Control Plan, specifically to the application frequency of the chemical treatment (i.e., Magnesium Chloride (MgCl2) dust suppression control). This NOI package is to update the AO under Cricket Mountain Title V Operating Permit (Number 2700005004) and includes the following electronic forms: • Form 1: Notice of Intent Application • Form 2: Company Information • Form 4: Project Information • Form 5: Emissions Information Unpaved gravel roads are treated with MgCl2 at Cricket Mountain to provide control of fugitive dust (airborne dust) resulting from plant operations traffic, in accordance with the National Ambient Air Quality Standards (NAAQS), Utah Department of Environmental Quality (UDEQ) Division of Air Quality’s (UDAQ’s) Fugitive Dust Rule (R307-309) and the requirements of the Cricket Mountain Fugitive Dust Control Plan. As included in Cricket Mountain’s Fugitive Dust Control Plan, the current frequency of MgCl2 application to the unpaved haul roads is three times a year. Upon further review, Cricket Mountain Lime Plant NOI Application Package PREPARED FOR: GRAYMONT WESTERN US INC. PROJECT NO. 318-4-10 DECEMBER 14, 2021 ii TABLE OF CONTENTS 1.0 Introduction and Checklist ................................................................................................................. 1 Form 1 Notice of Intent (NOI) Application Checklist ....................................................................... 2 2.0 Source Identification Information [R307-401-5] ............................................................................... 3 2.1 Area Designation (Attainment, Maintenance, or Nonattainment) ............................................ 3 2.2 Federal/State Requirement Applicability (NAAQS, NSPS, MACT, SIP, etc.) ........................ 3 2.2.1 National Ambient Air Quality Standards (NAAQS) ............................................................ 3 2.2.2 New Source Performance Standards (NSPS) ......................................................................... 3 2.2.3 Major Source Maximum Achievable Control Technology (MACT) ................................... 3 2.2.4 National Emission Standards for Hazardous Air Pollutants (NESHAP) .......................... 3 2.3 Source Size Determination (Major, Minor, PSD) ......................................................................... 3 3.0 NOI Application Information [R307-401] ......................................................................................... 4 3.1 Detailed Description of the Project and Source Process ............................................................. 4 3.2 Discussion of Fuels, Raw Materials, and Products Consumed/Produced .............................. 4 3.3 Description of Equipment Used in the Process and Operating Schedule ................................ 4 3.4 Description of Changes to the Process, Production Rates, etc. .................................................. 4 3.5 Site Plan of Source with Building Dimensions, Stack Parameters, etc. .................................... 4 3.6 Best Available Control Technology (BACT) Analysis [R307-401-8] .......................................... 5 3.7 Emissions Related Information: [R307-401-2(b)] .......................................................................... 5 3.8 Emissions Impact Analysis – Approved Modeling Protocol [R307-410] .................................. 5 3.9 Nonattainment/Maintenance Areas – Major NSR/Minor (Offsetting Only) [R307-403] ...... 5 3.10 Major Sources in Attainment or Unclassified Areas (PSD) [R307-405, R307-406] ................. 6 3.11 Signature on Application .............................................................................................................. 6 4.0 References ............................................................................................................................................. 7 Figures Figure 1. Cricket Mountain Roads Plan .................................................................................................. 5 Appendices Appendix A – Applicable UDAQ NOI Forms 1 1.0 INTRODUCTION AND CHECKLIST Graymont Western US Inc. (Graymont) is submitting this Notice of Intent (NOI) application package for the following modification to the Cricket Mountain Lime Plant (Cricket Mountain): 1. Update the frequency of chemical surfactant application on the main haul road and the sales road to twice per year. This NOI application document is organized in a manner that follows the outline provided in the UDAQ Form 1 – NOI Application Checklist, provided on the next page. The checklist items that are not specifically listed on the applicable official application forms or require further details are addressed in this application document. This NOI application package includes the following appendix: Appendix A – Applicable UDAQ NOI Forms 2 Form 1 Notice of Intent (NOI) Application Checklist 3 2.0 SOURCE IDENTIFICATION INFORMATION [R307-401-5] NOI application checklist source identification items 1 through 5 and 9 are provided on Form 2 in Appendix A. The remaining items from the NOI application checklist – Source Identification Information are provided in this section. 2.1 Area Designation (Attainment, Maintenance, or Nonattainment) The Cricket Mountain is in Millard County, which is in compliance with National Ambient Air Quality Standards (NAAQS) for all applicable pollutants (EPA 2021). 2.2 Federal/State Requirement Applicability (NAAQS, NSPS, MACT, SIP, etc.) Federal and state requirements are addressed in this section. 2.2.1 National Ambient Air Quality Standards (NAAQS) There are no proposed changes to emissions from the main haul road and sales road as a result of this modification. 2.2.2 New Source Performance Standards (NSPS) Fugitive dust from activity on the main haul road and sales road are not subject to any NSPS. 2.2.3 Major Source Maximum Achievable Control Technology (MACT) Fugitive dust from activity on the main haul road and sales road are not subject to any MACT. 2.2.4 National Emission Standards for Hazardous Air Pollutants (NESHAP) Fugitive dust from activity on the main haul road and sales road are not subject to any NESHAP. 2.3 Source Size Determination (Major, Minor, PSD) The Cricket Mountain Lime Plant is a major source with respect to Title V of the 1990 Clean Air Act Amendments and the Prevention of Significant Deterioration (PSD) regulations per 40 CFR 52.21. 4 3.0 NOI APPLICATION INFORMATION [R307-401] 3.1 Detailed Description of the Project and Source Process Graymont is requesting to update the frequency of required chemical treatment applications on the main haul road and sales road specified in permit condition II.B.22.a. This permit condition requires at least 3 applications per year. Graymont is proposing to update the number of applications to at least 2 times per year. 3.2 Discussion of Fuels, Raw Materials, and Products Consumed/Produced The main haul road connects the quarry to the plant and the sales road connects the offices to State Highway 257. 3.3 Description of Equipment Used in the Process and Operating Schedule The proposed modification requested in this NOI application affects the main haul road and sales road. No changes are requested to activity rates or associated control technology. 3.4 Description of Changes to the Process, Production Rates, etc. Not applicable. No change to processes, production rates, equipment, or emissions is being proposed. 3.5 Site Plan of Source with Building Dimensions, Stack Parameters, etc. A site map showing the affected roads at Cricket Mt. are shown in Figure 1. The only emissions from these roads are fugitive and no change to PTE is being requested. Therefore, modeling parameters (building dimensions, stack parameters, etc.) are not provided with this NOI application. 5 Figure 1. Cricket Mountain Roads Plan 3.6 Best Available Control Technology (BACT) Analysis [R307-401-8] Not applicable. The only emissions from these sources are fugitive and there are no proposed changes to either equipment or control technology. 3.7 Emissions Related Information: [R307-401-2(b)] Form 5 in Appendix A provides a facility-wide summary of the potential emissions from the Cricket Mountain Facility. There will be no change to facility PTE as a result of this NOI. 3.8 Emissions Impact Analysis – Approved Modeling Protocol [R307-410] Not applicable. Because there will be no change to PTE as discussed in Section 3.7, no modeling protocol or analysis is provided with this NOI application pursuant to R307-410-4. 3.9 Nonattainment/Maintenance Areas – Major NSR/Minor (Offsetting Only) [R307-403] Not applicable. Offsetting is not required for this modification because the Cricket Mountain is not located in a nonattainment area. 6 3.10 Major Sources in Attainment or Unclassified Areas (PSD) [R307-405, R307-406] As discussed in Section 3.7, there is no change to emissions or PTE as a result of this modifications. Therefore, PSD is not applicable. 3.11 Signature on Application The responsible official’s signature is provided on Form 2 in Appendix A. 7 4.0 REFERENCES EPA. 2021. "Current Nonattainment Counties for All Criteria Pollutants." United State Environmental Protection Agency, October 31. Accessed November 30, 2021. https://www3.epa.gov/airquality/greenbook/ancl.html#UT. Appendix A – Applicable UDAQ NOI Forms Page 1 of 1 Form 4 Company____________________________ Project Information Site ______________________________ Utah Division of Air Quality New Source Review Section Process Data - For Modification/Amendment ONLY 1. Permit Number_______________________________ If submitting a new permit, then use Form 3 Requested Changes 2. Name of process to be modified/added: _______________________________ End product of this process: _______________________________ 3. Permit Change Type: New Increase* Equipment Process Condition Change ____________________ Other ______________________________ Other ______________________________ Other ______________________________ 4. Does new emission unit affect existing permitted process limits? Yes No 5. Condition(s) Changing: 6. Description of Permit/Process Change** 7.New or modified materials and quantities used in process. ** Material Quantity Annually 8. New or modified process emitting units ** Emitting Unit(s)Capacity(s)Manufacture Date(s) *If the permit being modified does not include CO2e or PM2.5, the emissions need to be calculated and submitted to DAQ, which may result in an emissions increase and a public comment period. **If additional space is required, please generate a document to accommodate and attach to form. Graymont Western US Inc. Cricket Mountain Plant 2700005003 Dust Control application for gravel roads N/A N/A ✔ Change in frequency of chemical stabilizer application. Chemical stabilizer N/A Graymont will apply chemical stabilizer twice a year on the unpaved, gravel haul roads to maintain dust control requirements in accordance with the Plant's Dust Control Plan. Page 1 of 1 Company___________________________ 6LWH_____________________________ Form Emissions Information Criteria/GHGs/ HAP’s Utah Division of Air Quality New Source Review Section Potential to Emit* Criteria Pollutants & GHGs Criteria Pollutants Permitted Emissions (tons/yr) Emissions Increases (tons/yr) Proposed Emissions (tons/yr) PM10 Total PM10 Fugitive PM2.5 NOx SO2 CO VOC VOC Fugitive NH3 Greenhouse Gases CO2e CO2e CO2e CO2 CH4 N2O HFCs PFCs SF6 Total CO2e *Potential to emit to include pollution control equipment as defined by R307-401-2. Hazardous Air Pollutants**(**Defined in Section 112(b) of the Clean Air Act ) Hazardous Air Pollutant*** Permitted Emissions (tons/yr) Emission Increase (tons/yr) Proposed Emission (tons/yr) Emission Increase (lbs/hr) Total HAP *** Use additional sheets for pollutants if needed Graymont Western US Inc. Cricket Mountain Lime Plant 611.87 0.00 611.87 0.00 610.78 0.00 610.78 3,883.85 0.00 3,883.85 760.29 0.00 760.29 7,821.19 0.00 7,821.19 117.84 0.00 117.84 887,964.00 0.00 887,964.00 10/24/23, 3:46 PM State of Utah Mail - Re: Graymont change https://mail.google.com/mail/u/0/?ik=91115cbbfa&view=pt&search=all&permthid=thread-a:r-922613128478078174%7Cmsg-f:1778653709999628502…1/3 John Jenks <jjenks@utah.gov> Re: Graymont change 1 message Brandy Cannon <bcannon@utah.gov>Mon, Oct 2, 2023 at 8:18 AM To: John Jenks <jjenks@utah.gov> Hi John: Thanks for waiting while I worked this language out with Nate. Can we make the following changes to II.B.4.b? This would be in addition to what we discussed before. II.B.4.b The owner/operator shall implement a fugitive dust control plan acceptable to the Director for control of all dust sources associated with the Cricket Mountain Plant. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that appropriate measures are being implemented to control fugitive dust. At least once during each permit term, the fugitive dust control plan shall be reviewed and evaluated. If the plan review indicates changes to the dust control plan are necessary to reflect current site operations, an updated fugitive dust control plan shall be submitted. The owner/operator shall operate in accordance with the most current fugitive dust control plan approved by the Director. For each plan review, a record of the date and results of the review shall be maintained. Records that demonstrate compliance with the most recently approved fugitive dust control plan shall also be maintained. [R307-401] We decided this AO would be processed as an enhanced AO right? That saves them from having to submit a sig mod application to me later. When you get the responsible official signature on the engineering review, will you email me a copy? Thanks, Brandy Cannon Environmental Engineer | Operating Permits Section M: (385) 226-4139 P: (801) 536-4000 airquality.utah.gov Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements. On Mon, Jul 31, 2023 at 2:57 PM John Jenks <jjenks@utah.gov> wrote: I spoke with Jon and we're planning on keeping it as an admin. He agreed with me that the currently listed requirements don't add a tangible benefit. Your other changes regarding the dust control rules, fuel tanks and the like will all be incorporated. I will run the updated draft past him again so he can see the changes. Of course you and Tad will also receive an updated copy. Thanks a lot for the fugitive dust rule comment (I wasn't aware of that), and the other updates. I'm still awaiting Tad's comments, and seeing if Teri has fixed the templates yet or not. I'll let you know when I have a new version. - John On Thu, Jul 27, 2023 at 7:21 AM Brandy Cannon <bcannon@utah.gov> wrote: Hi John: 10/24/23, 3:46 PM State of Utah Mail - Re: Graymont change https://mail.google.com/mail/u/0/?ik=91115cbbfa&view=pt&search=all&permthid=thread-a:r-922613128478078174%7Cmsg-f:1778653709999628502…2/3 Here are my comments plus a couple of things that showed up during the T5 renewal that do not line up with the AO. Could we do this AO enhanced instead of as an admin and get those corrected? 1. Because Graymont is in the haze SIP, neither of the fugitive dust rules (R307-205, R307-309) applies to them now. So you might want to remove condition II.B.4.g that references R307-205. My suggestion would be to leave the fugitive dust conditions in the AO for now since the AO could serve as the authority in the T5 instead of the rules and just give them the reduced frequency they requested. I think condition II.B.4.e could still be removed though. That's been commented out of the T5 since 2006 because they are subject to a 20% opacity limitation and reduction of drop distance is a standard work practice. You also might want to add more of what you'd like to see contained in the dust control plan since neither rule is applicable now and since approval of the plans submitted online is automatic. Just a suggestion though. By the way, I talked to the rules people and emailed Jon, Alan, and Dave about R307-205 and R307-309 when I first ran across it with Ash Grove. 2. They have 6 existing fuel storage tanks on site in addition to the 500-gal gasoline tank that is listed in the AO: Four 10,150- and one 12,000-gallon diesel tanks, one 2,000-gallon gasoline tank. 3. II.A.48, II.A.51: Graymont told me R-1 is the primary crusher, not the loadout for the sugar stone system. The ID for the sugar stone loadout is 203255SSS001. 4. II.B.3.b: Remove "DAQ Policy Document for Continuous Emission Monitoring Systems?" I have never been able to find it so I comment it out of the T5. Do we need it or are references to R307-170, 40 CFR 60 subpart A and appendix B specs good enough? Thanks for considering these and let me know if you have any questions or want to discuss further. Brandy Cannon Environmental Engineer | Operating Permits Section M: (385) 226-4139 P: (801) 536-4000 airquality.utah.gov Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements. On Tue, Jul 25, 2023 at 11:47 AM John Jenks <jjenks@utah.gov> wrote: Brandy, I'm sending some errors over to Teri H on the engineering review changes, but I thought you could review the latest changes for Graymont while I'm waiting for her corrections. RN103130045-23 makes the following changes to their existing AO: Condition II.B.1.c - removed subcondition P. This is an internal reference to Section II.B.4 which covers the requirements for fugitive dust and haul roads. It has no specific compliance requirement by itself. Conditions II.B.4.a through II.B.4.f have been removed and Conditions II.B.4.g and II.B.4.h have been appropriately renumbered. These existing conditions are redundant with the requirement of existing condition II.B.4.h (now renumbered as II.B.4.b) which outlines the need for a fugitive dust control plan. I'd attach the actual RN document, but it has two major errors that need to be corrected: The permit history doesn't seem to be working, and there is an extraneous sentence on the first page of the cover letter. If you'd like, you can find the ER in tempo. Please let me know if you have any questions. -- John D. Jenks Environmental Engineer IV | NSR Major Source New Phone #: (385) 306-6510 airquality.utah.gov 10/24/23, 3:46 PM State of Utah Mail - Re: Graymont change https://mail.google.com/mail/u/0/?ik=91115cbbfa&view=pt&search=all&permthid=thread-a:r-922613128478078174%7Cmsg-f:1778653709999628502…3/3 -- John D. Jenks Environmental Engineer IV | NSR Major Source New Phone #: (385) 306-6510 airquality.utah.gov