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HomeMy WebLinkAboutDAQ-2025-002572 Compass Minerals 765 N 10500 W Ogden, UT 84404 www.compassminerals.com T (801) 731-3100 May 8th, 2025 Mr. Bryce Bird Utah Division of Air Quality 195 North 1950 West Salt Lake City, Utah 84114 RE: Title V Operating Permit Significant Modification Application, Compass Minerals Ogden Inc. (Operating Permit No. 5700001004) Mr. Bird, Compass Minerals Ogden, Inc. is submitting the enclosed Title V signification modification application for Operating Permit No. 5700001004. The facility is an existing salt and minerals processing facility located in Weber County, Utah. Engclosed with this letter is the Utah Division of Air Quality (UDAQ) OPerationg Permit Application Form and required appendices. The above Title V significant modification is requested to include the changes approved int the below Approval Order. • DAQE-AN109170049-24: removal of condition II.B.2.a limiting salt harvest to 1,685,000 tons per 12-month period. Should you have any questions with the information provided, please contact Ian Wright (wrighti@compassminerals.com, (801) 732-3011). Respectfully, Brandon Risner Vice President – Operations, Ogden and C&I Manufacturing Compass Minerals Ogden Inc. Cc: Brandy Cannon, Operating Permits Section, Utah Division of Air Quality David Beatty, Title V Section Manager, Utah Division of Air Quality John Jenks, Major Source New Source Review, Utah Division of Air Quality John Black, Major Source New Source Review, Utah Division of Air Quality Joe Randolph, Major Source Compliance, Utah Division of Air Quality Utah Division of Air Quality OPERATING PERMIT APPLICATION APPLICATION FOR: … INITIAL … MODIFICATION … RENEWAL AN APPLICATION FOR A PERMIT TO OPERATE MUST BE SUBMITTED WITHIN 12 MONTHS OF COMMENCING OPERATION OR OCTOBER 10, 1995, WHICHEVER IS LATER; OR, FOR RENEWALS, NOT LATER THAN THE RENEWAL DATE. This is not a stand alone document. Please refer to the Utah Administrative Code or the Permit Application Instructions for specific details required to complete the application. Please print or type all information requested. A completeness review will be made utilizing a Completeness Checklist. If you would like a copy of the checklist or if you have any questions please contact the Operating Permit Section of the Division of Air Quality at (801) 536-4000. Written inquiries may be addressed to: Division of Air Quality, Operating Permit Section, P.O. Box 144820, Salt Lake City, Utah 84114-4820. GENERAL OWNER AND PLANT INFORMATION 1. Company name and address: Phone: ( ) FAX: ( ) 2. Company contact for environmental issues: Phone: ( ) FAX: ( ) 3. Plant name and address, and plant contact (if different from above): Phone: ( ) FAX: ( ) 4. Owner's name and address (if different from #1): Phone: ( ) FAX: ( ) 5. Is plant permanent? … Yes … No If not, how long will equipment be at this location? 6. County plant is located in: ______________________ Are you within 50 miles of state border? … Yes … No 7. Directions to plant (street address and/or directions to site to include U.S. Geological Survey map if necessary): 8. Identify any current Approval Order(s) (continue on separate sheet if necessary): Grandfathered? … Yes … No AO#_________________Date ____/____/____ AO#_________________Date ____/____/____ AO#_________________Date ____/____/____ AO#_________________Date ____/____/____ AO#_________________Date ____/____/____ AO#_________________Date ____/____/____ 9. If request for modification, previous operating permit # and date: DAQO #____________________________ DATE: ____/____/____ 10. Type of business at this plant: ___________________________________________________________________ 11. Is your company a Small Business? … Yes … No 12. Standard Industrial Classification (SIC) Code (See Instructions): [ ] [ ] [ ] [ ] OPERATING PERMIT APPLICATION FORM October 19, 2006 Weber Sixteen (16) miles west of Ogden, Utah. Follow Ogden 12th Street west to 9300 West. Turnnorth on 9300 West, proceed about one (1) mile, turn west on 450 North and proceed aboutone (1) mile and follow signs. Compass Minerlas Ogden Inc.9900 W 109th St.Overland Park, KS 66210 Compass Minerals Ogden Inc.765 North 10500 West Ogden, UT 84404 Ian Wright Compass Minerals Ogden Inc.765 North 10500 West Ogden, UT 84404 AN109170049-24 05 08 2024 5700001004 6 10 2021 Solar evaporation of brine from the Great Salt Lake to produce sodium chloride, sulfate of potash, and magnesium chloride 2 8 1 9 801 732-3011 OPERATING PERMIT APPLICATION FORM October 19, 2006 PROCESS INFORMATION 13. Site plan of plant drawn to scale to include location of emission units (Attach as Appendix A): 14. Flow diagram of emission unit(s) at the plant to include flow rates and other applicable information (Attach as Appendix B): 15. Detailed process/equipment description. (Attach as Appendix C) Description must include: … Process/Equipment specific form(s) identified in the instructions … Fuels and their use … Equipment used in process … Description of product(s) … Raw materials used … Operation schedules … Description of changes to process … Production rates (include daily/seasonal variances) (if applicable) 16. Does this application contain confidential information? … Yes … No If yes, mark those portions claimed confidential and submit a statement in support of the claim. 17. Are you requesting that the permit include Alternative Operating Scenario(s)? … Yes … No If yes, include the detailed information described in this application for each alternative requested. EMISSIONS RELATED INFORMATION 18. Describe all potential emissions of air pollutants. (Attach as Appendix D). Include the following: … Emissions for which the source is major. … Emissions of regulated air pollutants. … Emissions of hazardous air pollutants. … Description of any operational constraints or work practices imposed that limit the amount of regulated or hazardous air pollutants. … Emissions above described in appropriate units (lbs/hr, lbs/day, ppm, etc.) based on the underlying standard, and in tons/year. … All calculations, including conversion factors as appropriate, to support the emissions data above. 19. Identify on the site plan (see #13 above) all emissions points; and all relevant building dimensions, stack parameters, etc. 20. List and describe any insignificant emission units. (Attach as Appendix E) 21. List all air pollution control equipment and include equipment specific forms identified in the instructions. (Attach as Appendix F) MONITORING INFORMATION 22. List and describe all compliance monitoring devices and activities. (Attach as Appendix G) 23. Cite and describe any applicable test methods used for determining compliance. (Include with Appendix G) APPLICABLE REQUIREMENTS 24. Cite and describe all applicable requirements with regard to (but not limited to) the following (attach as Appendix H): … SIP … HAP … NSPS …PSD … NSR … UACR … Title IV … Approval Order … Other 25. Are there any proposed exemptions from applicable requirements? (If yes, attach as Appendix I) … Yes … No OPERATING PERMIT APPLICATION FORM October 19, 2006 ADDITIONAL INFORMATION 26. Is the trading of emissions involved? (If yes, include detailed description as Appendix J) … Yes … No 27. Has a Risk Management Plan been forwarded to Region VIII, EPA, in accordance with 40 CFR Part 68? … Yes … No … RMP Not Required COMPLIANCE PLAN AND CERTIFICATION 28. Compliance Plan (Attach as Appendix K) Plan must include the following: … Description of compliance status with respect to all applicable requirements. … A statement that source will continue to comply with all requirements with which the source is in compliance. … A statement that source will comply with any requirement that becomes effective during term of permit. … For requirements not being complied with, a detailed narrative description of how you will achieve compliance. 29. Compliance Schedule (Include with Appendix K) Schedule must include the following: … A statement that source will continue to comply with all requirements with which the source is in compliance. … A statement that source will comply with any requirement that becomes effective during term of permit. … A schedule of remedial measures to come into compliance with any requirement not being met. Include any outstanding Notice Of Violations (NOVs) and date. … An enforceable sequence of actions, with milestones, leading to compliance. … A schedule for submission of certified progress reports at least every 6 months for sources out of compliance. 30. Compliance Plan Certification (Attach as Appendix L) The responsible official must certify the truth, accuracy, and completeness of the compliance plan in accordance with R307-415-5c(9) and provide other information related to compliance. … Include a certification of compliance with all applicable requirements by a responsible official consistent with R307-415-5d. … Include a statement of the methods used for determining compliance, to include a description of: … Monitoring … Recordkeeping … Reporting requirements … Test methods … Include a schedule for submission of compliance certifications during the permit term to be submitted annually or as specified by the applicable requirement. … Include a statement indicating the compliance status with any applicable enhanced monitoring and compliance certification requirements of the Act. CERTIFICATION OF APPLICATION 31. In accordance with UAC R307-415-5d, I hereby certify that the information and data submitted in and with this application are true, accurate and complete, based on information and belief formed after reasonable inquiry. Signature: Title: 32. _______________________________________ Name (Typed or printed) 33. Telephone Number: ( ) 34. Date: Brandon Risner May 8, 2025913 344-9274 VP Operations, Ogden and C&I Manufacturing Appendix A: Site Plans Refer to the facility Operating Permit Application for Renewal dated January 8, 2021 for figures identifying the facility layout, access roads, buildings and emissions points. None of the information contained in this appendix has changed since the last renewal application and remains up to date. Appendix B: Process Flow Diagram Refer to the facility process flow diagrams attached. SOP PROCESS •Potassium minerals harvested from the ponds are sent to the SOP plant and converted to schoenite •Schoenite converted to SOP by adding hot water •The converted SOP is shipped as is or compacted to make granular SOP 2 Harvest Minerals + Cooling → Schoenite + Water + Heat = Sulfate of Potash (SOP) SALT PROCESS •Salt harvested from the ponds is either sold for highway deicing or washed •Washed salt is shipped to chemical customers or fed to the salt plant •Salt is processed into consumer and industrial products in the plant –Dry –Screen –Crush or compact •The processed salt is packaged for animal nutrition, deicing, water conditioning, etc. •Sold in bulk for industrial uses 3 MAGNESIUM CHLORIDE PROCESS •The brine remaining at the end of the solar evaporation process is liquid magnesium chloride •Used in liquid form as a dust-control product or as a specialty fertilizer •Liquid magnesium chloride is also desulfated and sold as a specialty liquid highway deicer •Brine is also fed to the magnesium chloride plant for desulfation, color removal, evaporation and cooling to crystallize the product •Crystallized magnesium chloride is crushed, screened and packaged for consumer and professional deicing use 4 Appendix C: Narrative Description Compass Minerals, which is in Weber County, harvests and processes salt and minerals from the Great Salt Lake to produce Sulfate of Potash (SOP), salt, and magnesium chloride. The process starts with the saturated brine that is pumped from the Great Salt Lake through a vast array of solar evaporation ponds (the Ponds) located on 25,000 acres on the eastern shore of the Great Salt Lake. The first stage of precipitation occurs in the Salt Ponds where halite is precipitated. The brine from the Salt Ponds is then directed to the Potash Ponds where a mixture of schoenite, kainite, carnalite, hexahydrite and halite are precipitated. As salts and minerals precipitate in the Ponds, Compass Minerals uses heavy machinery to windrow the ponds in order remove water and improve exposure of the solids to evaporation. The precipitated minerals and salts are then removed from the ponds via front end loaders or scrapers and taken by truck to stockpiles and processing facilities as feedstocks of the Salt and SOP processes. Finally, the remaining brine is further concentrated and primarily sold as a liquid de-icing and dust suppression product or used as feedstock for the MgCl2 plant. 1.1 Sulfate of Potash (SOP) Process The SOP production process is the most complex system at Compass Minerals. During harvest season, the precipitated solids in the Potash Ponds (which include a mixture of schoenite, kainite, carnalite, hexahydrite and halite) are loaded into trucks for transportation to the SOP plant feed system or to the stockpile. The wet potash that is stockpiled and/or introduced into the processing plants has a high moisture content (in excess of 10% and typically above 30% moisture content). Once the Potash is introduced to the SOP process, the first stage includes crushing, screening, and slurrying this pond material—all of which are wet processes—to complete the conversion to schoenite. The schoenite is then vacuum filtered to produce a wet filter cake to feed the crystallizer, where the cake is then dissolved and converted to SOP. The SOP is then vacuum filtered again to a cake to feed the SOP dryer (D-1400). Both the schoenite and SOP filter cake material are similar to wet sand with some grittiness. Once dried, approximately 20% of the SOP material is then conveyed to the silos as finished product (for standard SOP). The majority of the SOP produced (~80%) is sent through the compaction process, which produces a range of particle sizes (nominally from 1 to 5 mm). The SOP compaction process starts with the dried SOP, which is then blended with a mixture of steam or water (resulting in greater than 1% moisture overall) at the pug mill to feed to the compactors. This product (hot, moist bricks of SOP) is then crushed and screened to the proper product sizes. Both the undersize (fines) and oversize (overs) are recycled back into the compaction process. The product size grades are mixed with a diluted binding agent (which helps improve granule integrity) and dried/cured in dryer D1545 to make the final products. Because of the complexity of the process and the various recycle circuits, there is both wet SOP and dry SOP moving through the compaction process, with a substantial variation in the moisture content and characteristics of the material. For example, while the material after the pug mill has moisture content in excess of 1%, other dry, ultrafine material exhibits particle size and characteristics comparable to talc. The final products are conveyed through enclosed systems to loadout, where material is transported to the customer via rail and trucks. In some cases, the SOP may have a de-dust oil applied to mitigate dust in the transportation and downstream (customer) handling systems. 1.2 Salt Process The Salt Process also starts from precipitated solids from the evaporation ponds, which are stockpiled and then “washed” of organic and other impurities and stockpiled for plant feed. After washing, the wet salt is either directed to the “Road Salt” stockpile for highway de-icing operations or to a double-wing stacker for Salt mill operations feed stockpiling. Road Salt is screened and loaded into bulk trucks with no further processing. Salt stockpiled for milling is transferred to a hopper where it is directed to a crusher which feeds the Salt Dryer D-501. After drying, the salt is cooled and sent to the Salt Mill Building for further processing. Once dried in D-501, Salt at Compass Minerals is maintained at a low moisture content to meet product specifications. Downstream processes in the Mill Building include screening, crushing, pelletizing, cooling, mixing, and conveying processes to make the finished product. 1.3 Magnesium Chloride (MgCl2) Process After precipitation of first Salt (halite) and then Potash, concentrated brine from the Ponds contains a high concentration of MgCl2. The MgCl2 process is almost entirely liquid and the product is mostly sold in liquid form, though some is evaporated to a solid state (Mag Flake) and packaged for direct sale. The magnesium chloride flaking process uses the concentrated brine that remains after solar evaporation has precipitated the potassium salts used by the SOP plant. The brine directed to the MgCl2 (Mag) Plant contains approximately 30% - 34% MgCl2 by weight. The 2% sulfate concentration of this brine is reduced in the Mag Plant by adding a calcium chloride solution which precipitates calcium sulfate (gypsum). The brine is then filtered to remove the gypsum and passed through activated carbon to remove organic material from the brine, which occurs naturally in the Great Salt Lake. After passing through activated carbon, sodium hypochlorite (bleach) is added to the brine solution to improve the color of the final product. After adding bleach, the brine solution is heated using one of two sets of evaporators in a series at any one time to create a magnesium solution that can be cooled into a solid hexahydrate flake on a water-cooled belt. Compass Minerals is the only known domestic producer of magnesium chloride hexahydrate, which is used in a variety of applications including de-icing products, road dust control, and fertilizer. Appendix D: Emissions Description and Calculations The Compass Minerals Ogden Inc. facility is considered a major source for particulate matter (PM10 and PM2.5), carbon monoxide (CO) and hazardous air pollutants (HAPs). Since submittal of the Operating Permit Application for Renewal dated January 8, 2021, changes in emissions at the facility have been authorized under the following Approval Orders (AOs): •DAQE-AN109170043-22, issued April 7, 2022; •DAQE-AN109170042-22, issued August 15, 2022 •DAQE-AN109170044-23, issued March 2, 2023 •DAQE-AN109170049-24, issued May 5, 2024 Copies of these AOs are included in Appendix L. See the attached Potential to Emit (PTE) tables for current emissions. Unit Description PM2.5-PRI PM10-PRI CO Lead NH3 NOX SO2 VOC PM2.5-FIL PM10-FIL VOC PM2.5-FIL PM10-FIL Abrasive Blast 1.42E-01 1.42E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH1555 1.73E+00 1.14E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH500 2.92E+00 1.18E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.05E-01 1.34E+00 0.00E+00 0.00E+00 0.00E+00 AH502 3.30E+00 4.08E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.14E-03 3.01E-03 0.00E+00 0.00E+00 0.00E+00 AH513 1.38E+01 1.38E+01 1.84E+01 1.10E-04 7.01E-01 5.43E+00 3.29E-01 1.20E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH692 5.34E-01 5.34E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH001 2.19E+00 2.19E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH002 2.07E+00 3.91E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.14E-01 5.99E-01 0.00E+00 0.00E+00 0.00E+00 BH008 2.05E+01 2.05E+01 1.08E+01 6.44E-05 4.12E-01 3.19E+00 1.93E-01 7.09E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH1400 2.23E+01 2.23E+01 1.84E+01 1.10E-04 7.01E-01 5.43E+00 3.29E-01 1.20E+00 1.02E+00 3.99E+00 0.00E+00 0.00E+00 0.00E+00 BH1505 2.82E-02 6.72E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH1516 9.66E-01 6.38E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 9.12E-04 2.41E-03 0.00E+00 0.00E+00 0.00E+00 BH1565 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH501 5.03E+00 5.68E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH502 2.63E-01 8.70E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.86E-02 3.17E-01 0.00E+00 0.00E+00 0.00E+00 Boiler #1 3.53E+00 3.53E+00 3.90E+01 2.32E-04 1.49E+00 7.01E+00 6.96E-01 2.55E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Boiler #2 3.53E+00 3.53E+00 3.90E+01 2.32E-04 1.49E+00 7.01E+00 6.96E-01 2.55E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 CT003 1.32E-01 1.32E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 CT004 1.32E-01 1.32E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 CT639 2.63E-02 2.63E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Evaporators 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.71E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH696 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 7.80E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN007 3.22E-03 3.33E-03 1.14E-02 0.00E+00 0.00E+00 1.47E-01 1.69E-02 7.50E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN100 4.52E-03 4.66E-03 1.75E-01 0.00E+00 0.00E+00 1.75E-01 7.40E-04 2.00E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN1200 1.10E-03 1.13E-03 1.06E-02 0.00E+00 0.00E+00 2.12E-01 5.82E-04 5.29E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN1300 1.19E-03 1.22E-03 9.92E-03 0.00E+00 0.00E+00 0.00E+00 1.63E-04 9.68E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN200 1.45E-04 1.45E-04 1.43E+00 0.00E+00 0.00E+00 3.43E-02 1.12E-05 2.64E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN300 1.45E-04 1.45E-04 1.43E+00 0.00E+00 0.00E+00 3.43E-02 1.12E-05 2.64E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN500 7.60E-05 7.60E-05 8.15E-04 0.00E+00 0.00E+00 1.41E-03 5.87E-06 1.09E-04 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_Mag 1.61E-02 4.49E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_Salt 1.39E+00 4.94E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_SOP 1.69E+01 2.88E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Outdoor Material Handling_Salt 2.10E+00 1.37E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Outdoor Material Handling_SOP 1.41E+01 3.46E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 SC450 9.79E-01 9.79E-01 1.08E+01 6.44E-05 4.12E-01 3.19E+00 1.93E-01 7.09E-01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 SC460 1.96E+00 1.96E+00 2.16E+01 1.29E-04 8.24E-01 6.38E+00 3.86E-01 1.42E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tank 3 - Gasoline 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.04E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tank 4 - Diesel 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.33E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tank 5 - Diesel 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.33E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table D-1 Potential to Emit Criteria Pollutants Compass Minerals Ogden Inc., Weber County, Utah Point Source Emissions Fugitive DustFugitive Emissions Unit Description PM2.5-PRI PM10-PRI CO Lead NH3 NOX SO2 VOC PM2.5-FIL PM10-FIL VOC PM2.5-FIL PM10-FIL Point Source Emissions Fugitive DustFugitive Emissions Mag Flocculent 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.86E+00 0.00E+00 0.00E+00 SOP Defoamer 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 7.01E+00 0.00E+00 0.00E+00 Loading_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 7.42E-02 4.82E-01 Paved_Bulk Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.32E-02 2.32E-01 Paved_Bulk SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.81E-01 2.80E+00 Paved_Mag Brine 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.68E-01 1.67E+00 Paved_Mag Flake 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.66E-02 2.67E-01 Paved_Packaged Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.52E-02 5.62E-01 Scrapper_Pond Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 9.74E-02 6.49E-01 Stockpile Vehicles_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.28E-01 1.89E+01 Stockpile Vehicles_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.91E-01 5.61E+00 Stockpile_Road Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 6.61E-03 4.40E-02 Stockpile_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.51E-02 1.67E-01 Stockpile_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.80E-02 3.86E-01 Unpaved_Bulk Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.06E-02 1.07E-01 Unpaved_Pond Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.25E-01 5.21E+00 Unpaved_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.02E+00 3.01E+01 Unpaved_Road Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.97E-01 1.96E+00 Wind_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.35E+00 5.91E+00 Windrow_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.53E-01 1.02E+00 Potential to Emit (tons)120.59 197.42 161.14 0.00 6.02 38.24 2.84 38.59 1.59 6.25 10.87 8.39 76.12 Table D-2 Potential to Emit Hazardous Air Pollutants Compass Minerals Ogden Inc., Weber County, Utah Unit Description Tot a l 1,3- B u t a d i e n e 2-M e t h y l n a p h t h a l e n e 3-M e t h y l c h o l a n t h r e n e 7,12 - Dim e t h y l b e n z ( a ) a n t h r a c e n e Ace n a p h t h e n e Ace n a p h t h y l e n e Ace t a l d e h y d e Acr o l e i n Ant h r a c e n e Ars e n i c Ben z e n e Ben z o ( a ) a n t h r a c e n e Ben z o ( a ) p y r e n e Ben z o ( b ) f l u o r a n t h e n e Ben z o ( g , h , i ) p e r y l e n e Ben z o ( k ) f l u o r a n t h e n e Ber y l l i u m Cad m i u m Chl o r i n e Chl o r o f o r m Chr o m i u m Chr y s e n e Cob a l t Dib e n z o ( a , h ) a n t h r a c e n e Dic h l o r o b e n z e n e Fluo r a n t h e n e Fluo r e n e For m a l d e h y d e Hex a n e Hyd r o g e n C h l o r i d e Ind e n o ( 1 , 2 , 3 - c , d ) P y r e n e Lea d Ma n g a n e s e Me r c u r y Me t h a n o l Nap h t h a l e n e Nic k e l Phe n a n t h r e n e Pyr e n e Sele n i u m Tolu e n e Xyle n e Abrasive Blast 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH1555 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH500 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH502 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH513 4.16E-01 0.00E+00 5.26E-06 3.94E-07 3.50E-06 3.94E-07 5.26E-07 0.00E+00 0.00E+00 0.00E+00 4.38E-05 4.60E-04 3.94E-07 2.63E-07 3.94E-07 2.63E-07 3.94E-07 2.63E-06 2.41E-04 0.00E+00 0.00E+00 3.07E-04 3.94E-07 1.84E-05 2.63E-07 2.63E-04 6.57E-07 6.13E-07 1.64E-02 3.94E-01 0.00E+00 3.94E-07 1.10E-04 8.32E-05 5.69E-05 0.00E+00 1.34E-04 4.60E-04 3.72E-06 2.52E-03 5.26E-06 7.45E-04 0.00E+00 AH692 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH001 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH002 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH008 2.45E-01 0.00E+00 3.09E-06 2.32E-07 2.06E-06 2.32E-07 3.09E-07 0.00E+00 0.00E+00 0.00E+00 2.58E-05 2.71E-04 2.32E-07 1.55E-07 2.32E-07 1.55E-07 2.32E-07 1.55E-06 1.42E-04 0.00E+00 0.00E+00 1.80E-04 2.32E-07 1.08E-05 1.55E-07 1.55E-04 3.86E-07 3.61E-07 9.66E-03 2.32E-01 0.00E+00 2.32E-07 6.44E-05 4.90E-05 3.35E-05 0.00E+00 7.86E-05 2.71E-04 2.19E-06 1.75E-03 3.09E-06 4.38E-04 0.00E+00 BH1400 4.15E-01 0.00E+00 5.26E-06 3.94E-07 3.50E-06 3.94E-07 5.26E-07 0.00E+00 0.00E+00 0.00E+00 4.38E-05 4.60E-04 3.94E-07 2.63E-07 3.94E-07 2.63E-07 3.94E-07 2.63E-06 2.41E-04 0.00E+00 0.00E+00 3.07E-04 3.94E-07 1.84E-05 2.63E-07 2.63E-04 6.57E-07 6.13E-07 1.64E-02 3.94E-01 0.00E+00 3.94E-07 1.10E-04 8.32E-05 5.69E-05 0.00E+00 1.34E-04 4.60E-04 3.72E-06 1.87E-03 5.26E-06 7.45E-04 0.00E+00 BH1505 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH1516 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH1565 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH501 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BH502 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Boiler #1 8.77E-01 0.00E+00 1.11E-05 8.36E-07 7.43E-06 8.36E-07 1.11E-06 0.00E+00 0.00E+00 0.00E+00 9.28E-05 9.75E-04 8.36E-07 5.57E-07 8.36E-07 5.57E-07 8.36E-07 5.57E-06 5.11E-04 0.00E+00 0.00E+00 6.50E-04 8.36E-07 3.90E-05 5.57E-07 5.57E-04 1.39E-06 1.30E-06 3.48E-02 8.36E-01 0.00E+00 8.36E-07 2.32E-04 1.76E-04 1.21E-04 0.00E+00 2.83E-04 9.75E-04 7.89E-06 2.32E-06 1.11E-05 1.58E-03 0.00E+00 Boiler #2 8.77E-01 0.00E+00 1.11E-05 8.36E-07 7.43E-06 8.36E-07 1.11E-06 0.00E+00 0.00E+00 0.00E+00 9.28E-05 9.75E-04 8.36E-07 5.57E-07 8.36E-07 5.57E-07 8.36E-07 5.57E-06 5.11E-04 0.00E+00 0.00E+00 6.50E-04 8.36E-07 3.90E-05 5.57E-07 5.57E-04 1.39E-06 1.30E-06 3.48E-02 8.36E-01 0.00E+00 8.36E-07 2.32E-04 1.76E-04 1.21E-04 0.00E+00 2.83E-04 9.75E-04 7.89E-06 2.32E-06 1.11E-05 1.58E-03 0.00E+00 CT003 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 CT004 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 CT639 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Evaporators 5.68E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.66E+00 2.19E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.01E+00 0.00E+00 2.80E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.15E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 AH696 2.88E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.40E+00 1.58E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.40E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 6.22E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN007 3.34E-04 3.38E-06 0.00E+00 0.00E+00 0.00E+00 1.23E-07 4.37E-07 6.62E-05 7.99E-06 1.61E-07 0.00E+00 8.05E-05 1.45E-07 1.62E-08 8.56E-09 4.22E-08 1.34E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.05E-08 0.00E+00 5.03E-08 0.00E+00 6.57E-07 2.52E-06 1.02E-04 0.00E+00 0.00E+00 3.24E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 7.32E-06 0.00E+00 2.54E-06 4.13E-07 0.00E+00 3.53E-05 2.46E-05 GN100 3.65E-04 8.84E-06 0.00E+00 0.00E+00 0.00E+00 1.06E-06 2.09E-06 5.70E-06 1.78E-06 2.78E-07 0.00E+00 1.76E-04 1.41E-07 5.81E-08 2.51E-07 1.26E-07 4.93E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.46E-07 0.00E+00 7.83E-08 0.00E+00 9.12E-07 2.90E-06 1.78E-05 0.00E+00 0.00E+00 9.37E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.94E-05 0.00E+00 9.23E-06 8.39E-07 0.00E+00 6.36E-05 4.37E-05 GN1200 6.02E-04 6.08E-06 0.00E+00 0.00E+00 0.00E+00 2.21E-07 7.87E-07 1.19E-04 1.44E-05 2.91E-07 0.00E+00 1.45E-04 2.61E-07 2.92E-08 1.54E-08 7.61E-08 2.41E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 5.49E-08 0.00E+00 9.07E-08 0.00E+00 1.18E-06 4.54E-06 1.84E-04 0.00E+00 0.00E+00 5.83E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.32E-05 0.00E+00 4.57E-06 7.43E-07 0.00E+00 6.36E-05 4.43E-05 GN1300 2.09E-04 2.11E-06 0.00E+00 0.00E+00 0.00E+00 7.65E-08 2.72E-07 4.13E-05 4.98E-06 1.01E-07 0.00E+00 5.02E-05 9.05E-08 1.01E-08 5.34E-09 2.63E-08 8.35E-09 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.90E-08 0.00E+00 3.14E-08 0.00E+00 4.10E-07 1.57E-06 6.35E-05 0.00E+00 0.00E+00 2.02E-08 0.00E+00 0.00E+00 0.00E+00 0.00E+00 4.57E-06 0.00E+00 1.58E-06 2.57E-07 0.00E+00 2.20E-05 1.53E-05 GN200 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN300 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 GN500 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_Mag 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Indoor Material Handling_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Outdoor Material Handling_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Outdoor Material Handling_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 SC450 2.43E-01 0.00E+00 3.09E-06 2.32E-07 2.06E-06 2.32E-07 3.09E-07 0.00E+00 0.00E+00 0.00E+00 2.58E-05 2.71E-04 2.32E-07 1.55E-07 2.32E-07 1.55E-07 2.32E-07 1.55E-06 1.42E-04 0.00E+00 0.00E+00 1.80E-04 2.32E-07 1.08E-05 1.55E-07 1.55E-04 3.86E-07 3.61E-07 9.66E-03 2.32E-01 0.00E+00 2.32E-07 6.44E-05 4.90E-05 3.35E-05 0.00E+00 7.86E-05 2.71E-04 2.19E-06 6.44E-07 3.09E-06 4.38E-04 0.00E+00 SC460 4.87E-01 0.00E+00 6.18E-06 4.64E-07 4.12E-06 4.64E-07 6.18E-07 0.00E+00 0.00E+00 0.00E+00 5.15E-05 5.41E-04 4.64E-07 3.09E-07 4.64E-07 3.09E-07 4.64E-07 3.09E-06 2.83E-04 0.00E+00 0.00E+00 3.61E-04 4.64E-07 2.16E-05 3.09E-07 3.09E-04 7.73E-07 7.21E-07 1.93E-02 4.64E-01 0.00E+00 4.64E-07 1.29E-04 9.79E-05 6.70E-05 0.00E+00 1.57E-04 5.41E-04 4.38E-06 1.29E-06 6.18E-06 8.76E-04 0.00E+00 Tank 3 - Gasoline 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tank 4 - Diesel 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Tank 5 - Diesel 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Mag Flocculent 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 SOP Defoamer 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Loading_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Paved_Bulk Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Paved_Bulk SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Paved_Mag Brine 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Paved_Mag Flake 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Paved_Packaged Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Scrapper_Pond Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Stockpile Vehicles_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Stockpile Vehicles_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Stockpile_Road Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Stockpile_Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Stockpile_SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Unpaved_Bulk Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Unpaved_Pond Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Unpaved_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Unpaved_Road Salt 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Wind_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Windrow_Pond SOP 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Potential to Emit (tons)6.32E+01 2.04E-05 4.52E-05 3.39E-06 3.01E-05 4.87E-06 8.10E-06 2.33E-04 2.91E-05 8.31E-07 3.76E-04 4.40E-03 4.02E-06 2.37E-06 3.67E-06 2.53E-06 3.48E-06 2.26E-05 2.07E-03 3.07E+00 2.19E+01 2.63E-03 3.84E-06 1.58E-04 2.51E-06 2.26E-03 8.81E-06 1.68E-05 2.16E+00 3.39E+00 2.94E+01 3.59E-06 9.41E-04 7.15E-04 4.89E-04 3.22E+00 1.20E-03 3.95E-03 4.99E-05 6.15E-03 4.52E-05 6.58E-03 1.28E-04 9 Appendix E: Insignificant Emissions Refer to the facility Operating Permit Application for Renewal dated January 8, 2021 for a list of sources considered insignificant activities per UAC R307-415-5e. None of the information contained in this appendix has changed since the last renewal application and remains up to date. 10 Appendix F: List of Air Pollution Control Equipment Refer to the facility Operating Permit Application for Renewal dated January 8, 2021 for a list of air pollution control equipment. None of the information contained in this appendix has changed since the last renewal application and remains up to date. 11 Appendix G: Compliance Monitoring Devices and Activities Refer to Title V Operating Permit No. 5700001004 dated June 10, 2021 for identification of compliance monitoring devices and activities currently required at the facility. 12 Appendix H – List of Applicable Requirements Applicable Federal Requirements: • NSPS (Part 60), A: General Provisions • NSPS (Part 60), Db: Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units • NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines • NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal Combustion Engines • NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants • (grandfathered) • MACT (Part 63), A: General Provisions • MACT (Part 63), ZZZZ: NESHAP for Stationary Reciprocating Internal Combustion Engines • MACT (Part 63), DDDDD: NESHAP for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters • Title V (Part 70) Major Source • NAAQs (40 CFR Parts 52, 75, 78, and 9): Federal ‘‘Good Neighbor Plan’’ for the 2015 Ozone National Ambient Air Quality Standards Applicable State Requirements: • R307-101: General Requirements • R307-107: General Requirements: Breakdowns • R307-150: Emission Inventories • R307-165: Emission Testing • R307-170: Continuous Monitoring Program • R307-305: Nonattainment and Maintenance Areas for PM10: Emission Standards • R307-306: PM10 Nonattainment and Maintenance Areas: Abrasive Blasting • R307-309: Nonattainment and Maintenance Areas for PM10 and PM2.5: Fugitive Emissions and Fugitive Dust • R307-315: NOx Emission Limits for Natural Gas-Fired Boilers, Steam Generators, and Process Heater; 2.0-5.0 MMBtu • R307-316: NOx Emission Limits for Natural Gas-Fired Boilers, Steam Generators, and Process Heaters; greater than 5.0 MMBtu. • R307-325: Ozone Nonattainment and Maintenance Areas: General Requirements • R307-327: Ozone Nonattainment and Maintenance Areas: Petroleum Liquid Storage • R307-335: Degreasing • R307-361: Architectural Coatings • R307-401: Permit: New and Modified Sources • R307-415: Permits: Operating Permit Requirements Appendix I: Proposed Exemptions From Applicable Requirements Compass Minerals Ogden Inc. is not currently claiming or proposing any exemptions from applicable requirements. Appendix J: Emissions Trading Compass Minerals Ogden Inc. is not requesting to trade emission increases or decreases as part of this permit action. Appendix K / L : Compliance Plan, Schedule, and Certification See attached for the most recent compliance plan and certification for the facility. Section I: General Provisions Term Condition Comp. Status Method Comp. Status Other Information I.B Except as provided in R307-415-7b(1), the permittee may not operate except in compliance with this permit. Company Records Intermittent The following reports were submitted during the monitoring period; • Potential exceedance of harvester salt 12-month total for the months of August 2023 through November 2023. Date reported 12/12/2023. • Potential exceedance of harvested 12-mopnth total for the months of December 2023- February 2024. Date reported 1/31/2024. l.C.3 The permittee shall furnish to the Director, within a reasonable time, any information that the Director may request in writing. Company Records Continuous l.G The permittee shall pay an annual emission fee to the Director. The emission fee shall be due on October 1 of each calendar year or 45 days after the source receives notice of the amount of the fee, whichever is later. Company Records Continuous l.K Any application form, report, or compliance certification submitted pursuant to this permit shall contain certification as to its truth, accuracy, and completeness, by a responsible official as defined in R307-415-3. Company Records Continuous I.L.1 Permittee shall submit to the Director an annual compliance certification by June 24 of every calendar year, certifying compliance with the terms and conditions contained in this permit, including emission limitations, standards, or work practices Company Records Continuous Annual Compliance Certification for previous reporting period was submitted on 06/07/2024. l.L.2 The permittee shall also submit all compliance certifications to the EPA, Region VIII. Company Records Continuous l.S.1.a The records of all required monitoring data and support information shall be retained by the permittee for a period of at least five years from the date of the monitoring sample, measurement, report, or application. Company Records Continuous l.S.1.b The permittee shall include all applicable information in records of monitoring required by the permit. Company Records Continuous Term Condition Comp. Status Method Comp. Status Other Information l.S.2.a Monitoring reports shall be submitted to the Director every six months, or more frequently if specified in Section II. Company Records Continuous Semi-Annual Monitoring Reports were submitted on 012/18/2024 for the period of 06/01/2024 - 11/30/2024 and on 06/24/2024 for the period of 12/01/2023 - 05/31/2024. l.S.2.c The Director shall be notified promptly of any deviations from permit requirements including those attributable to upset conditions as defined in this permit, the probable cause of such deviations, and any corrective actions or preventative measures taken. Company Records Continuous See Term I.B for a list of permit deviations reported during the monitoring period. l.U An emission inventory shall be submitted in accordance with the procedures of R307-150, Emission Inventories. Company Records Continuous RY2023 Emissions Inventory submitted 04/16/2024. Section II Source-Wide Conditions Term Condition Comp. Status Method Comp. Status Other Information II.B.1.a Permittee shall comply with the applicable requirements for recycling and for class I and class II refrigerants pursuant to 40 CFR 82, emission reduction Subpart F - Recycling and Emissions Reduction. Company Records Continuous II.B.1.b Permittee shall comply with the applicable requirements for servicing of motor vehicle air conditioners pursuant to 40 CFR 82, Subpart B - Servicing of Motor Vehicle Air Conditioners. Company Records Continuous II.B.1.c Permittee shall use only pipeline quality natural gas for fuel for all boilers and burners. Company Records Continuous Natural gas supplied by Dominion Energy. II.B.1.d At all times, including periods of startup, shutdown, and malfunction, the permittee shall, to the extent practicable, maintain and operate any permitted plant equipment, including associated air pollution control equipment, in a manner consistent with good air pollution control practices for minimizing emissions. Company Records Continuous II.B.1.e Unless otherwise specified in this permit, visible emissions from any stationary or fugitive emission source shall not exceed 10 percent opacity. This includes, but is not limited to, all wet scrubbers and all baghouses. Monitoring Records Continuous Term Condition Comp. Status Method Comp. Status Other Information II.B.1.f The permittee shall submit a fugitive dust control plan to the Director in accordance with R307-309-6. At least once every three years, the fugitive dust control plan shall be reviewed and evaluated. Company Records Continuous FDCP management approval statement updated in 2025. II.B.1.g The permittee shall prevent, to the maximum extent possible, material from being deposited onto any paved road other than a designated deposit site. Monitoring Records Continuous II.B.1.h Each baghouse shall operate within the static pressure range recommended by the manufacturer for normal operations. Monitoring Records Continuous Section II Conditions on SALT: Salt Production Plant Term Condition Comp. Status Method Comp. Status Other Information II.B.2.a The following production limits shall not be exceeded: • 1,685,000 tons of salt harvested from ponds per rolling 12-month period, • 700,000 tons of road salt produced per rolling 12- month period, • 960,000 tons of dried salt produced per rolling 12- month period. Company Records Intermittent The following reports were submitted during the monitoring period; • Potential exceedance of harvester salt 12-month total for the months of August 2023 through November 2023. Date reported 12/12/2023. • Potential exceedance of harvested 12-mopnth total for the months of December 2023- February 2024. Date reported 1/31/2024. II.B.2.b Visible emissions from the outdoor operations and equipment shall not exceed 10% opacity. Monitoring Records Continuous II.B.3.a Particulate emissions to the atmosphere from AH-500 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.4.a Particulate emissions to the atmosphere from AH-502 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.5.a NOx emissions to the atmosphere from the dryer (D-501) shall not exceed 20 ppm at 3% O2. Monitoring Records Continuous Last performance test completed October 2022 (compliant). Term Condition Comp. Status Method Comp. Status Other Information II.B.5.b Particulate emissions to the atmosphere from AH-513 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Intermittent The following reports were submitted during the monitoring period; • Potential Deviation (01/03/2024) Last performance test completed October 2024 (compliant). II.B.6.a Particulate emissions to the atmosphere from BH-501 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.7.a Particulate emissions to the atmosphere from BH-502 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.8.a Particulate emissions to the atmosphere from BH-503 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous BH-503 does not currently have a stack and is vented inside the building. This baghouse will be tested once a stack has been added to vent to atmosphere. Section II Conditions on SOP: SOP Production Plant Term Condition Comp. Status Method Comp. Status Other Information II.B.9.a The following production and operation limits shall not be exceeded: • 5,300,000 tons of potash harvested from ponds per rolling 12-month period • 1,680,000 tons of SOP produced per rolling 12-month period • 432,000 tons of KCl used per rolling 12-month period Monitoring Records Continuous II.B.9.b Visible emissions from all outdoor storage silos shall not exceed 10% opacity. Egress points to the dome silos shall remain closed at all times, except when mobile equipment is actively entering or exiting the silo during loading or unloading operations. Monitoring Records Continuous II.B.9.c Visible emissions from outdoor operations and equipment shall not exceed 10% opacity. Monitoring Records Continuous Term Condition Comp. Status Method Comp. Status Other Information II.B.10.a Particulate emissions to the atmosphere from AH-1555 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.11.a Particulate emissions to the atmosphere from BH-001 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.12.a Particulate emissions to the atmosphere from BH-002 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.13.a Particulate emissions to the atmosphere from BH-008 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.13.b NOx emissions to the atmosphere from the dryer (D-1545) shall not exceed 20 ppm at 3% O2. Monitoring Records Continuous Last performance test completed November 2022 (compliant). II.B.14.a NOx emissions to the atmosphere from the dryer (D-1400) shall not exceed 20 ppm at 3% O2. Monitoring Records Continuous Last performance test completed November 2022 (compliant). II.B.14.b Emissions to the atmosphere from BH-1400 shall not exceed the particulate rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.15.a Particulate emissions to the atmosphere from BH-1516 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.16.a Visible emissions from all outdoor fully-enclosed conveyance systems shall not exceed 5% opacity. Monitoring Records Continuous Section II Conditions on MgCl: MgCl Production Plant Term Condition Comp. Status Method Comp. Status Other Information II.B.17.a The following production limits shall not be exceeded: • 1,000,000 tons of magnesium chloride liquid produced from ponds per rolling 12-month period. • 70,080 tons of magnesium chloride flake produced per rolling 12-month period. Monitoring Records Continuous II.B.17.b Visible emissions from outdoor operations and equipment shall not exceed 10% opacity. Monitoring Records Continuous II.B.18.a Particulate emissions to the atmosphere from AH-692 shall not exceed the rates and concentrations stated in the permit. Monitoring Records Continuous Last performance test completed October 2024 (compliant). Term Condition Comp. Status Method Comp. Status Other Information II.B.18.b Scrubber shall operate within the static pressure and liquid flow rate ranges recommended by the manufacturer. Monitoring Records Continuous II.B.19.a Combined VOC emissions to the atmosphere from each set of two evaporators shall not exceed the emission rate stated in the permit. Monitoring Records Continuous Last performance test completed November 2022 (compliant). II.B.19.b Combined HCl emissions to the atmosphere from each set of two evaporators shall not exceed the emission rate stated in the permit. Monitoring Records Continuous Last performance test completed November 2022 (compliant). II.B.19.c The permittee shall not exceed 8,760 hours of operation combined from the two sets of evaporators per rolling 12- month period. With the exception of periods of startup, shutdown and maintenance, the permittee shall only operate one set of two evaporators at any one time. Company Records Continuous Section II Conditions on Boiler: Natural Gas-Fired Boilers Term Condition Comp. Status Method Comp. Status Other Information II.B.20.a NOx emissions to the atmosphere from each of the two boilers on site shall not exceed the following rates and concentrations: 1.30 pounds per hour and 9.0 ppm. Monitoring Records Continuous Last performance test completed October 2024 (compliant). II.B.20.b Visible emissions shall be no greater than 10 percent opacity. In lieu of monitoring via visible emission observations, records required for this permit condition will serve as monitoring. Monitoring Records Continuous II.B.20.c Only pipeline quality natural gas with a potential SO2 emission rate of 0.32 lb/MMBtu (140 ng/J) heat input or less shall be used as fuel for the boilers. Company Records Continuous Natural gas supplied by Dominion Energy, now Enbridge II.B.20.d Emissions of NOx shall be no greater than 0.20 lb/MMBtu heat input in any gases discharged into the atmosphere from each boiler. Monitoring Records Continuous II.B.20.e The permittee shall conduct a tune-up of each affected emission unit as specified in 40 CFR 63.7540. Company Records Continuous Last tune-up completed July 2024. Term Condition Comp. Status Method Comp. Status Other Information II.B.20.f At all times, the permittee shall operate and maintain each affected emission unit, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. Company Records Continuous Section II: Special Provisions - GENSET: Emergency Diesel Generators Term Condition Comp. Status Method Comp. Status Other Information II.B.21.a Visible emissions shall be no greater than 20 percent opacity. Monitoring Records Continuous II.B.21.b The 235 hp emergency generator shall comply with the following operational requirements: • Operated no more than 100 hours per calendar year for non-emergency situations. • Change oil and filter every 500 hours of operation or annually, whichever comes first. • Inspect air cleaner every 1000 hrs of operation or annually, whichever comes first. • Inspect all hoses and belts every 500 hours of operation or annually, whichever comes first. Company Records Continuous II.B.21.c At all times the permittee shall operate and maintain the 235 hp emergency generator, including associated air pollution control equipment and monitoring equipment, in a manner consistent with safety and good air pollution control practices for minimizing emissions. Company Records Continuous II.B.21.d The 610 hp emergency fire pump engine shall comply with the emission standards in Table 4 of 40 CFR 60 Subpart IIII, for all pollutants. Company Records Continuous Term Condition Comp. Status Method Comp. Status Other Information II.B.21.e For the 402 hp and 161 hp emergency engines: • After December 31, 2008, the permittee shall not install affected emission units (excluding fire pump engines) that do not meet the applicable requirements for 2007 model year engines. • The permittee shall not import affected emission units with a displacement of less than 30 liters per cylinder that do not meet the applicable requirements specified in paragraphs (1) of this condition after the date specified in paragraphs (1) of this condition. Company Records Continuous II.B.21.f For the 402 hp and 161 hp emergency engines: 2007 model year and later emergency affected emission units with a displacement of less than 30 liters per cylinder that are not fire pump engines shall comply with the emission standards for new nonroad CI ICE in 40 CFR 60.4202, for all pollutants, for the same model year and maximum engine power for their 2007 model year and later emergency stationary CI ICE. Company Records Continuous II.B.21.g For the 610 hp emergency fire pump engine and the 402 hp and 161 hp emergency engines, the permittee shall do all of the following: • Operate and maintain the stationary CI ICE and control device according to the manufacturer's emission-related written instructions; • Change only those emission-related settings that are permitted by the manufacturer; and • Meet the requirements of 40 CFR parts 89, 94 and/or 1068, as applicable. Company Records Continuous Term Condition Comp. Status Method Comp. Status Other Information II.B.21.h For the 610 hp emergency fire pump engine and the 402 hp and 161 hp emergency engines, the permittee shall purchase diesel fuel that meets the following per gallon standards of 40 CFR 80.510(b): • Sulfur content no greater than 15 ppm (0.0015 percent) by weight and • A minimum cetane index of 40 or a maximum aromatic content of 35 volume percent. Company Records Continuous II.B.21.i The 610 hp emergency fire pump engine and the 402 hp and 161 hp emergency engines may be operated for a maximum of 100 hours per calendar year. Company Records Continuous II.B.21.j The permittee shall only use diesel fuel (fuel oil #1, #2 or diesel fuel oil additives) in the diesel-fired engines on site. All diesel burned shall contain no more than 15 ppm sulfur. Company Records Continuous Section II Conditions on Engines-P: Propane-Fired Generators Term Condition Comp. Status Method Comp. Status Other Information II.B.22.a Visible emissions from propane-fired emergency generator engines shall not exceed 10% opacity. In lieu of monitoring via visible emission observations, records required for this permit condition will serve as monitoring. Company Records Continuous II.B.22.b For each affected emission unit where construction commenced (i.e., date the affected emission unit is ordered by the Permittee) after June 12, 2006, with a maximum engine power: • Less than or equal to 19 KW (25 HP) manufactured on or after July 1, 2008, the Permittee shall comply with the emission standards in 40 CFR 60.4231(a); • Greater than 19 KW (25 HP) and less than 75 KW (100 HP) the permittee shall comply with the emission standards in Table 1 of 40 CFR 60 Subpart JJJJ. Company Records Continuous Term Condition Comp. Status Method Comp. Status Other Information II.B.22.c The propane-fired emergency generator shall operate no more than 100 hours per calendar year for non-emergency situations, including 50 hours per calendar year for maintenance checks and readiness testing. Company Records Continuous Section II Conditions on Miscellaneous Sources Term Condition Comp. Status Method Comp. Status Other Information II.B.23.a Visible emissions from abrasive blasting operations shall not exceed 20% opacity except for an aggregate period of three minutes in any one hour. Monitoring Records Continuous II.B.24.a Visible emissions in disturbed, operational areas, and unpaved haul roads from haul trucks and other mobile equipment shall not exceed 20% opacity at any point and 10% opacity at the property boundary. Adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that the opacity limits are not exceeded and that appropriate measures are being implemented to control fugitive dust. Company Records Continuous II.B.24.b The permittee shall minimize fugitive dust to the maximum extent possible. If materials are deposited that may create fugitive dust on a public or private paved road, the permittee shall clean the road promptly. Records required for this permit condition will serve as monitoring. Company Records Continuous II.B.25.a For the gasoline storage tank, the permittee shall maintain records of the average monthly storage temperature, the type of liquid, throughput quantities, and the maximum true vapor pressure. Company Records Continuous II.B.26.a The permittee shall not operate a degreasing or solvent cleaning operation unless the conditions in the permit have been met. Monitoring Records Continuous II.B.26.b The facility shall comply with the architectural coating requirements found in R307-361. Company Records Continuous Certification In accordance with Operating Permit provision I.K and UAC R307-415-5d, and based on information and belief formed after reasonable inquiry, I certify that the statements and information in this document are true, accurate, and complete. Signature of Duly Authorized Representative Date Name and Title Brandon Risner, VP Operations, Ogden and C&I Manufacturing May 8, 2025 Appendix M: Unincorporated Approval Orders See attached for a courtesy copy of the following AOs, which are not currently incorporated in the facility Operating Permit: •DAQE-AN109170043-22, issued April 7, 2022 •DAQE-AN109170042-22, issued August 15, 2022 •DAQE-AN109170044-23, issued March 2, 2023 •DAQE-AN109170049-24, issued May 5, 2024 DAQE-AN109170043-22 {{$d1 }} Dean Thompson Compass Minerals Ogden Inc. 9900 West 109th Street Overland Park, KS 66210 ThompsonDe@compassminerals.com Dear Mr. Thompson: Re: Approval Order: Modification to Approval Order DAQE-AN109170039-20 to Replace and Add Equipment Project Number: N109170043 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on September 9, 2021. Compass Minerals Ogden Inc. must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is Andrea Marino, who can be contacted at (801) 834-8417 or abartlett@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:JB:jg cc: Weber-Morgan Health Department Dan Fagnant, 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 -LCF àĄ ÛÙÛÛ 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-AN109170043-22 Modification to Approval Order DAQE-AN109170039-20 to Replace and Add Equipment Prepared By Andrea Marino, Engineer (801) 834-8417 abartlett@utah.gov Issued to Compass Minerals Ogden Inc. - Production Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director Division of Air Quality April 7, 2022 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 ................................................................................... 10 PERMIT HISTORY ................................................................................................................... 31 ACRONYMS ............................................................................................................................... 32 DAQE-AN109170043-22 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Compass Minerals Ogden Inc. Compass Minerals Ogden Inc. - Production Plant Mailing Address Physical Address 9900 West 109th Street 765 North 10500 West Overland Park, KS 66210 Ogden, UT 84404-0000 Source Contact UTM Coordinates Name Dean Thompson 396,869 m Easting Phone (801) 732-3312 4,570,651 m Northing Email ThompsonDe@compassminerals.com Datum NAD83 UTM Zone 12 SIC code 2819 (Industrial Inorganic Chemicals, NEC) SOURCE INFORMATION General Description Compass Minerals Ogden Inc. (Compass) harvests and processes salt and minerals from the Great Salt Lake to produce sulfate of potash (SOP), salt, and magnesium chloride. NSR Classification Minor Modification at Major Source Source Classification Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA Weber County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Db: Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark 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), DDDDD: National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters Title V (Part 70) Major Source DAQE-AN109170043-22 Page 4 Project Description The source has requested to add a new conveyor, OC1550A, in the SOP Plant to convey SOP from the dryer to a covered dump truck during scale calibration. The new conveyor is located outdoors and is completely enclosed. The source has requested to move and replace the damaged BH1400 stack. The stack will be the same dimensions and be insulated. No new emissions are being created by moving and replacing the BH1400 stack. The source has also replaced the drum on the Salt Dryer D-501 and replaced the Wet Cyclone C- 501 associated with scrubber AH-513. No emission or process changes occurred due to the replacement of the drum of the Salt Dryer D-501 and the replacement of the Wet Cyclone C-501. Process Description The process starts with the saturated brine that is pumped from the Great Salt Lake through an array of solar evaporation ponds located on 25,000 acres on the eastern shore of the lake. Halite is precipitated first in the salt ponds. The brine from the salt ponds is then directed to the potash ponds where a mixture of schoenite, kainite, carnalite, hexahydrite, and halite are precipitated. As salts and minerals precipitate in the ponds, Compass uses heavy machinery to windrow the ponds in order to remove water and improve the exposure of the solids and increase evaporation. The precipitated minerals and salts are then removed from the ponds via front-end loaders and taken by truck to stockpiles and processing facilities where it is used as feedstock for the salt and SOP processes. Finally, the remaining brine is returned to the Great Salt Lake or further concentrated and sold as a liquid product or used as feedstock for the magnesium chloride plant. 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) Ammonia 0 6.03 CO2 Equivalent 0 225583.00 Carbon Monoxide 0 158.82 Nitrogen Oxides 0 38.42 Particulate Matter - PM10 0.10 283.20 Particulate Matter - PM10 (Fugitives) 0 78.60 Particulate Matter - PM2.5 0.05 132.63 Particulate Matter - PM2.5 (Fugitives) 0 19.81 Sulfur Dioxide 0 2.86 Volatile Organic Compounds 0 65.94 Volatile Organic Compounds - Fugitive 0 27.37 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Benzene (Including Benzene From Gasoline) (CAS #71432) 0 8 Cadmium (CAS #7440439) 0 4 DAQE-AN109170043-22 Page 5 Chlorine (CAS #7782505) 0 3328 Chloroform (CAS #67663) 0 43800 Chromium Compounds (CAS #CMJ500) 0 6 Formaldehyde (CAS #50000) 0 4316 Generic HAPs (CAS #GHAPS) 0 4 Hexane (CAS #110543) 0 4 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 56064 Manganese Compounds (CAS #MAR500) 0 2 Methanol (CAS #67561) 0 6308 Naphthalene (CAS #91203) 0 2 Nickel Compounds (CAS #NDB000) 0 8 Toluene (CAS #108883) 0 14 Change (TPY) Total (TPY) Total HAPs 0 56.93 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 five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] DAQE-AN109170043-22 Page 6 SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Production Plant Salt, Magnesium Chloride, and SOP II.A.2 Dryer 501 (D-501) Location: Salt Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by wet scrubber (AH-513) II.A.3 Dryer 1400 (D-1400) Location: SOP Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-1400) II.A.4 Dryer 1545 (D-1545) Location: SOP Plant - Compaction Capacity: 30 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-008) II.A.5 Wet Scrubber (AH-500) Location: Salt Plant Controls: Fluidized Bed Cooler, Bins & Hoppers, Conveyors, Coolers, Crushers & Grinders, Feeders & Baggers, Mixers, Presses, and Rail Loading Mechanically Aided II.A.6 Baghouse (BH-501) Location: Salt Plant Controls: Fluidized bed cooler II.A.7 Wet Scrubber (AH-502) Location: Salt Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided II.A.8 Baghouse (BH-502) Location: Salt Plant Controls: Bins & Hoppers, Elevators, and truck loading operations II.A.9 Baghouse (BH-503) Location: Salt Plant Controls: Material handling in the salt special products system II.A.10 Baghouse (BH-505) Location: Salt Plant Controls: Material handling in the salt packing area Equipped with HEPA Filter and vented indoors. DAQE-AN109170043-22 Page 7 II.A.11 Wet Scrubber with Cyclone (AH-513) Location: Salt Plant Controls: Salt Dryer (D-501) Mechanically Aided with Variable Frequency Drive (VFD) II.A.12 Venturi Wet Scrubber (AH-692) Location: Magnesium Chloride Plant Controls: Bins & Hoppers, Conveyors, Crushers & Grinders, Elevators, Feeders & Baggers, and Screens II.A.13 Baghouse (BH-001) Location: SOP Plant Controls: Bins & Hoppers, Screens, and Truck and Rail loading operations II.A.14 Baghouse (BH-002) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens II.A.15 Baghouse with Cyclone (BH-008) Location: SOP Plant Controls: Conveyor and SOP Compaction Dryer (D-1545) II.A.16 Baghouse with Cyclones (BH-1400) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, Screens, and SOP Dryer (D-1400) II.A.17 Bin Vent Filter (BH-1505) Location: SOP Plant Controls: Bins & Hoppers II.A.18 Bin Vent Filter (BH-1510) Location: SOP Plant Controls: Bins & Hoppers II.A.19 Baghouse (BH-1516) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided with VFD II.A.20 Wet Scrubber (AH-1555) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, and Elevators Mechanically Aided with VFD II.A.21 Bin Vent Filter (BH-1565) Location: SOP Plant Controls: Bin & Hoppers and Conveyors II.A.22 Dust Torits Location: SOP Plant Total Count: 15 Controls: Eleven SOP storage silos, and four conveyor systems DAQE-AN109170043-22 Page 8 II.A.23 Two (2) Boilers Capacity: 108.11 MMBtu/hr (each) Fuel Type: Natural Gas Installed Controls: Ultra-Low NOx burner and flue gas re-circulation Monitoring: Continuous Emission Monitoring System (CEMS) NSPS Applicability: Subpart Db II.A.24 Submerged Combustion Water Heater (SC-450) Location: SOP Plant Capacity: 30 MMBtu/hr Fuel: Natural Gas II.A.25 Submerged Combustion Water Heater (SC-460) Location: SOP Plant Capacity: 60 MMBtu/hr Fuel: Natural Gas II.A.26 Four (4) Magnesium Chloride Evaporators Two operating units with one primary and one secondary evaporator each Location: Magnesium Chloride Plant II.A.27 Two (2) Cooling Towers (CT-003 & CT-004) Location: SOP Plant Re-circulation rate: 1500 gpm II.A.28 Cooling Tower (CT-639) Location: Magnesium Chloride Plant Re-circulation rate: 212 gpm II.A.29 Abrasive Blasting Capacity: 50 lb/hr II.A.30 Emergency Generator Engine (GN-100) Rating: 610 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.31 Emergency Generator Engines (GN-200 & GN-300) Quantity: Two Rating: 41 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.32 Emergency Generator Engine (GN-1200) Rating: 402 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.33 Emergency Generator Engine (GN-1300) Rating: 161 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ DAQE-AN109170043-22 Page 9 II.A.34 Emergency Generator Engine (GN-007) Rating: 235 hp Fuel: Diesel MACT Applicability: Subpart ZZZZ II.A.35 Emergency Generator Engine (GN-500) Rating: less than 100 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.36 Fuel Tanks Fuel: Gasoline Quantity: One Capacity: 6,000 gallons Fuel: Diesel Quantity: Two Capacity: 10,000 gallons (each) II.A.37 Various Storage Silos Quantity: 11 Location: SOP Plant II.A.38 Dome Silos (12, 13, and 14) Location: SOP Plant II.A.39 Fully Enclosed Conveyors (NEW*) Location: SOP Plant ID's: OC014, OC015, OC041, OC1370B, OC1370C, OC1401, OC1402, OC1404, OC1405, OC1406, OC1501, OC1550A*, OC268, OC279, OC281, OC298, OC294, OCR007, OCR015, OCR019, OF012, OF013 Location: Salt Plant ID's: OC503, OC596, OC931, OC932, OC933, OC934, OC935, OH900 * ONE NEW II.A.40 Partially Enclosed Conveyors Location: SOP Plant ID: OC280, OC284, OC708, OC709 II.A.41 Various Conveyors and Bucket Elevators Location: Facility Wide II.A.42 Various Bins and Hoppers Location: Facility Wide II.A.43 Various Screens, Grinders, and Crushers DAQE-AN109170043-22 Page 10 SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a Unless otherwise specified in this AO, visible emissions from any stationary and fugitive emission source shall not exceed 10 percent opacity. This includes, but is not limited to, all wet scrubbers and all baghouses. [R307-401-8] II.B.1.a.1 Monitoring: a) Except as noted in b) through d) below, a visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. For baghouses subject to 40 CFR Part 64, the permittee shall designate one of the weekly opacity surveys to demonstrate compliance with the monthly survey requirement in this condition. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. b) For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six- minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. c) For emission units located within a building, the requirements of paragraph a) apply to each affected emission unit located within a building or for the building itself. If visible emissions from a building are monitored, the requirements of paragraph a) apply to each side, roof, and vent of the building. The affected emission unit(s) shall be operating when monitoring is performed on the unit located within a building or on the building itself. d) Permittee is not required to perform monthly surveys on natural gas combustion sources, cooling towers, magnesium chloride evaporators, and petroleum storage tanks. [R307-401-8] II.B.1.a.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] DAQE-AN109170043-22 Page 11 II.B.2 Salt Plant Requirements II.B.2.a The following production limits shall not be exceeded: A. 1, 685,000 tons of salt harvested from ponds per rolling 12-month period B. 700,000 tons of road salt produced per rolling 12-month period C. 960,000 tons of dried salt produced per rolling 12-month period [R307-401-8] II.B.2.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.2.b Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the permittee shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.2.b.1 Monitoring: The permittee shall conduct a Method 22 performance test, or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit. (a) Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA-approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. (b) If any visible emissions are observed from an emission unit, the permittee shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within 1 hour of the initial survey. (c) If no visible emissions are observed during four consecutive weekly tests, the permittee may decrease the frequency of the visible emissions test required in paragraph (a) from weekly to monthly. If visible emissions are observed during any monthly test, the permittee shall resume the weekly visible emissions test required in paragraph (a) and maintain that schedule until no visible emissions are observed in four consecutive weekly tests. [R307-401-8] DAQE-AN109170043-22 Page 12 II.B.2.b.2 Recordkeeping: The permittee shall keep a log of the visible emissions tests that contains the following information: time and date of test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2.c Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All bin vents E. All storage piles F. All partially enclosed conveyance systems G. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses [R307-401-8] II.B.2.c.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] DAQE-AN109170043-22 Page 13 II.B.2.c.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2.d Emissions to the atmosphere from the baghouses and wet scrubbers located at the Salt Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-500 1.61 1.61 0.01 AH-502 1.12 0.74 0.04 AH-513 1.49 1.49 0.0114 BH-501 1.30 1.15 0.01 BH-502 0.20 0.06 0.0053 BH-503 1.54 0.23 0.01 [R307-401-8] II.B.2.d.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.2.d.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.2.d.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] DAQE-AN109170043-22 Page 14 II.B.2.d.4 Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.2.d.5 Source Operation The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: (a) Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). (b) 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. (c) 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 permitted production rate is achieved. [R307-165] II.B.2.d.6 Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.2.d.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] DAQE-AN109170043-22 Page 15 II.B.2.d.8 Results 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] II.B.2.e The owner/operator shall vent Baghouse 505 (BH-505) indoors at all times during operation. [R307-401-8] II.B.3 Magnesium Chloride Plant Requirements II.B.3.a The following production limits shall not be exceeded: A. 1,000,000 tons of magnesium chloride liquid produced from ponds per rolling 12-month period B. 70,080 tons of magnesium chloride flake produced per rolling 12-month period [R307-401-8] II.B.3.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.3.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All storage piles E. All partially enclosed conveyance systems F. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses [R307-401-8] DAQE-AN109170043-22 Page 16 II.B.3.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.3.b.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.3.c With the exception of periods of startup, shutdown and maintenance, the owner/operator shall only operate one set of two evaporators at any one time. [R307-401-8] II.B.3.d The owner/operator shall not exceed 8,760 hours of operation combined from the two sets of evaporators per rolling 12-month period. Periods of startup, steady-state, and shutdown are to be included in this limit. Steam cleaning operations, where no chlorine is being added to the evaporators, are not considered part of this operational limit. [R307-401-8] II.B.3.d.1 The owner/operator shall demonstrate compliance with the rolling 12-month total by tracking the hours of operation for each set of evaporators. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of the hours of operation shall be kept for all periods when the plant is in operation. The records of operation shall be kept on a daily basis, and include startup, steady-state, and shutdown operational times. [R307-401-8] DAQE-AN109170043-22 Page 17 II.B.3.e Emissions to the atmosphere from the wet scrubber located at the Magnesium Chloride Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-692 0.15 0.12 0.01 Combined emissions to the atmosphere from each set of two Magnesium Chloride Plant Evaporators for VOC and HCl shall not exceed the following rates. Compliance with the limit shall be based on an average of 3 test runs: Emission Point VOC Emission Rate HCl Emission Rate (lb/hr) (lb/hr) MgCl2 Evaporators 6.18 6.40 [R307-401-8] II.B.3.e.1 Testing Frequency Compliance testing shall be performed at least once every 12 months (365 days) for AH-692. Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. Compliance testing for both VOC and HCl shall be performed at least once every three years for each train of the Magnesium Chloride Evaporators. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] II.B.3.e.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.3.e.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] DAQE-AN109170043-22 Page 18 II.B.3.e.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.3.e.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: (a) Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) for the AH-692 scrubber, or the previous three (3) years for the magnesium chloride evaporators. (b) 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. (c) 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 permitted production rate is achieved. [R307-165] II.B.3.e.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.3.e.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] DAQE-AN109170043-22 Page 19 II.B.3.e.8 Volatile Organic Compounds (VOCs) VOC emissions shall be determined using 40 CFR 60, App. A, Method 25A using a flame ionization analyzer equipped with a methane separator. If such an analyzer is unavailable, VOC emissions shall be determined simultaneously using two analyzers, with one configured to read only methane. The difference between the total organic detector and the methane detector shall constitute the VOC measurement. [R307-165] II.B.3.e.9 HCl HCl emissions shall be determined using 40 CFR 60, Appendix A, Method 26, or 26A or other EPA-approved testing method, acceptable to the Director. [R307-401-8] II.B.3.e.10 Results 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] II.B.4 SOP Plant Requirements II.B.4.a The following production and operation limits shall not be exceeded: A. 5,300,000 tons of potash harvested from ponds per rolling 12-month period B. 1,680,000 tons of SOP produced per rolling 12-month period C. 432,000 tons of KCl used per rolling 12-month period [R307-401-8] II.B.4.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.4.b Visible emissions from all outdoor storage silos shall not exceed 10% opacity. Egress points to the dome silos shall remain closed at all times, except when mobile equipment is actively entering or exiting the silo during loading or unloading operations. [R307-401-8] DAQE-AN109170043-22 Page 20 II.B.4.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while loading or unloading operations are occurring at the silo. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. 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, or other EPA-approved testing method, as acceptable to the Director. The opacity determination shall be performed while loading or unloading operations are occurring at the silo. [R307-401-8] II.B.4.b.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. Documentation of maintenance performed on the silos to ensure they operate as fully enclosed structures when egress points are closed shall also be kept in the log. [R307-401-8] II.B.4.c Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the permittee shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] DAQE-AN109170043-22 Page 21 II.B.4.c.1 Monitoring: The permittee shall conduct a Method 22 performance test, or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit. (a) Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA-approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. (b) If any visible emissions are observed from an emission unit, the permittee shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within 1 hour of the initial survey. (c) If no visible emissions are observed during four consecutive weekly tests, the permittee may decrease the frequency of the visible emissions test required in paragraph (a) from weekly to monthly. If visible emissions are observed during any monthly test, the permittee shall resume the weekly visible emissions test required in paragraph (a) and maintain that schedule until no visible emissions are observed in four consecutive weekly tests. [R307-401-8] II.B.4.c.2 Recordkeeping: The permittee shall keep a log of the visible emissions tests that contains the following information: time and date of test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.d Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loadout operations B. All storage piles C. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses D. All partially enclosed conveyance systems E. All conveyor drop points F. All conveyor transfer points G. All bin vents H. All dust torits [R307-401-8] DAQE-AN109170043-22 Page 22 II.B.4.d.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.4.d.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.e All partially enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.4.f Emissions to the atmosphere from the baghouses and wet scrubbers located at the SOP Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-1555 2.61 0.39 0.01 BH-001 0.37 0.37 0.01 BH-002 0.65 0.47 0.01 BH-008 4.25 4.25 0.01 BH-1400 2.78 2.78 0.02 BH-1516 1.46 0.22 0.01 [R307-401-8] DAQE-AN109170043-22 Page 23 II.B.4.f.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.4.f.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.4.f.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.4.f.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.4.f.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: (a) Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). (b) 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. (c) 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 permitted production rate is achieved. [R307-165] DAQE-AN109170043-22 Page 24 II.B.4.f.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.4.f.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.4.f.8 Results 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] II.B.5 Boiler Requirements II.B.5.a NOx emissions to the atmosphere from each of the two boilers on site shall not exceed the following rates and concentrations: Rate (lbs/hr) Concentration (ppm) 1.30 9.0 Compliance with the limit shall be based on an average of 3 test runs. [R307-401-8] II.B.5.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] DAQE-AN109170043-22 Page 25 II.B.5.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.5.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.5.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.5.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: (a) Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). (b) 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. (c) 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 permitted production rate is achieved. [R307-165] II.B.5.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] DAQE-AN109170043-22 Page 26 II.B.5.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.5.a.8 Results 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] II.B.6 Dryer Requirements II.B.6.a Emissions to the atmosphere from each of the three dryers on site (D-501, D-1400, and D-1545) for NOx shall not exceed 20 ppm at 3% O2. Compliance with the limits shall be based on an average of 3 test runs. [R307-401-8] II.B.6.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every three years. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] II.B.6.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.6.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.6.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170043-22 Page 27 II.B.6.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: (a) Testing shall be at no less than 90% of the production rate achieved in the previous three (3) years. (b) 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. (c) 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 permitted production rate is achieved. [R307-165] II.B.6.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.6.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.6.a.8 Results 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] II.B.7 Baghouse and Wet Scrubber Requirements II.B.7.a Each baghouse shall operate within the static pressure range recommended by the manufacturer for normal operations. The static pressure range shall be clearly labeled on each baghouse such that an inspector/operator can safely read the range at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across each of the baghouses. The pressure gauges shall be located such that an inspector/operator can safely read the indicator at any time. For baghouses that monitor pressure drop to demonstrate compliance with 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] DAQE-AN109170043-22 Page 28 II.B.7.a.1 Pressure drop readings from each baghouse shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop for the unit; C. Daily pressure drop readings; and D. Date of bag replacements. [R307-401-8] II.B.7.a.2 The pressure gauges of each baghouse shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. [R307-401-8] II.B.7.b Each wet scrubber shall operate within the static pressure range and liquid flow rate recommended by the manufacturer for normal operations. These parameters shall be clearly labeled on each scrubber such that an inspector/operator can safely read the parameters at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across the wet scrubber. Flow rate meters shall be installed to measure the liquid flow rate in the scrubber. The pressure gauges and flow rate meters shall be located such that an inspector/operator can safely read the indicators at any time. For scrubbers that are subject to 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] II.B.7.b.1 Pressure drop and liquid flow rate readings from each wet scrubber shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop and liquid flow rate for the unit; C. Daily pressure drop readings; and D. Daily liquid flow rate readings. [R307-401-8] II.B.7.b.2 The gauges and meters on each wet scrubber shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. For scrubbers that monitor liquid flow rate to demonstrate compliance with 40 CFR Part 64, the liquid flow rate requirements in this condition shall not apply. All other requirements in this condition remain applicable. [R307-401-8] II.B.8 Engine Requirements II.B.8.a Visible emissions from diesel-fired emergency generator engines shall not exceed 20% opacity. [R307-401-8] DAQE-AN109170043-22 Page 29 II.B.8.a.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a quarterly basis while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than steam are observed from an emission unit, a 6-minute opacity determination of that emission unit shall be performed by a certified observer within 1 hour of the initial survey. The opacity determination shall be performed while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. If the generator(s) continue to operate on consecutive days following the initial observation, a 6-minute opacity determination shall be performed by a certified observer on a daily basis, while the unit is operating, in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. [R307-401-8] II.B.8.a.2 Recordkeeping: The permittee shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.8.b Visible emissions from propane-fired emergency generator engines shall not exceed 10% opacity. [R307-401-8] II.B.8.b.1 Monitoring: In lieu of monitoring via visible emission observations, records shall be kept for any period that a fuel other than propane is used in the affected emission unit. [R307-401-8] II.B.8.b.2 Recordkeeping: Records shall be kept in a log that is kept in a readily accessible location onsite. [R307-401-8] II.B.8.c The owner/operator shall use the emergency generator engines for electricity-producing operations only during the periods when electric power from the public utilities is interrupted. [R307-401-8] II.B.8.d The owner/operator shall track hours of operation for each emergency generator engine as required to comply with all applicable federal subparts. [40 CFR 60 Subpart IIII, 40 CFR 60 Subpart JJJJ, 40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.9 Fuel Requirements II.B.9.a The owner/operator shall only use diesel fuel (fuel oil #1, #2 or diesel fuel oil additives) in the diesel fired engines on site. All diesel burned shall contain no more than 15 ppm sulfur. [R307-401-8] DAQE-AN109170043-22 Page 30 II.B.9.a.1 To demonstrate compliance with the diesel fuel requirements for any diesel fuel purchased, the owner/operator shall keep and maintain fuel purchase invoices. The fuel purchase invoices shall indicate that the diesel fuel meets the sulfur requirements, or the owner/operator shall obtain certification of sulfur content from the fuel supplier. [R307-401-8] II.B.9.b The owner/operator shall only use propane as fuel in the propane fired engines on site. [R307-401-8] II.B.9.c The owner/operator shall use only pipeline quality natural gas as a fuel source for all boilers and burners. [R307-401-8] II.B.10 Haul Roads and Fugitive Dust Requirements II.B.10.a The owner/operator shall comply with all applicable requirements of R307-309 for PM10 and PM2.5 non-attainment areas for fugitive emissions and fugitive dust source. At least once every three years, the fugitive dust control plan shall be reviewed and evaluated. If site modifications that result in emission changes have been made, an updated fugitive dust control plan shall be submitted as required by R307-309-6(3). [R307-309, R307-401-8] II.B.10.b Visible emissions in disturbed, operational areas, and unpaved haul roads from haul trucks and other mobile equipment shall not exceed 20% opacity at any point. [R307-401-8] II.B.10.b.1 In lieu of monitoring via visible emissions observations, adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that the opacity limit is not exceeded and that appropriate measures are being implemented to control fugitive dust. [R307-309, R307-401-8] II.B.10.c Vehicles speeds shall be limited to 30 miles per hour on haul roads and 15 miles per hour in off-road areas. The vehicle speed limits shall be clearly visible and posted, at a minimum, on site at the entrance to off-road areas and the beginning of the haul road. [R307-401-8] II.B.10.d The owner/operator shall spray all unpaved haul roads with water, brine, or a chemical suppressant to control fugitive dust and maintain the opacity limit listed in this AO. [R307-401-8] II.B.10.d.1 Records of water or chemical treatment shall be kept for all periods when the plant is in operation. The owner/operator may stop applying suppressants when the temperature is below freezing. The records shall include the following: A. Date B. Location of treatment C. Rainfall received, if any, and approximate amount D. Records of temperature if the temperature is below freezing. [R307-401-8] DAQE-AN109170043-22 Page 31 PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN109170039-20 dated January 13, 2020 Is Derived From Equipment Replacement Notification dated July 2, 2021 Is Derived From NOI dated September 9, 2021 Incorporates Additional Information dated November 8, 2021 Incorporates Additional Information dated November 22, 2021 Incorporates Additional Information dated January 14, 2022 DAQE-AN109170043-22 Page 32 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-AN109170042-22 {{$d1 }} Dean Thompson Compass Minerals Ogden Incorporated 9900 West 109th Street Overland Park, KS 66210 ThompsonDe@compassminerals.com Dear Mr. Thompson: Re: Approval Order: Modification to Approval Order DAQE-AN109170043-22 to Update Emissions and Equipment List Project Number: N109170042 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on December 30, 2020. Compass Minerals Ogden Inc. must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is John Jenks, who can be contacted at (385) 306-6510 or jjenks@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:JJ:jg cc: Weber-Morgan Health Department Dan Fagnant, 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 OAOMN ÚÞĄ ÛÙÛÛ 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-AN109170042-22 Modification to Approval Order DAQE-AN109170043-22 to Update Emissions and Equipment List Prepared By John Jenks, Engineer (385) 306-6510 jjenks@utah.gov Issued to Compass Minerals Ogden Incorporated - Production Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director Division of Air Quality August 15, 2022 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 ..................................................................................... 9 PERMIT HISTORY ................................................................................................................... 30 ACRONYMS ............................................................................................................................... 31 DAQE-AN109170042-22 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Compass Minerals Ogden Incorporated Compass Minerals Ogden Incorporated - Production Plant Mailing Address Physical Address 9900 West 109th Street 765 North 10500 West Overland Park, KS 66210 Ogden, UT 84404 Source Contact UTM Coordinates Name Dean Thompson 396,869 m Easting Phone (801) 732-3312 4,570,651 m Northing Email ThompsonDe@compassminerals.com Datum NAD83 UTM Zone 12 SIC code 2819 (Industrial Inorganic Chemicals, NEC) SOURCE INFORMATION General Description Compass Minerals Ogden Incorporated (Compass) harvests and processes salt and minerals from the Great Salt Lake to produce sulfate of potash (SOP), salt, and magnesium chloride. NSR Classification Minor Modification at Major Source Source Classification Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA Weber County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Db: Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark 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), DDDDD: National Emission Standards for Hazardous Air Pollutants for DAQE-AN109170042-22 Page 4 Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters Title V (Part 70) Major Source Project Description Compass Minerals has requested to add the flake cooling belt fan as a source of HAPs emissions. The flake cooling belt fan is part of the Magnesium Chloride Plant operations. The Magnesium Chloride Plant operations completed an internal review and the flake cooling belt fan had been identified as a source of HAP emissions. Compass Minerals submitted a voluntary self-disclosure of the additional HAP emissions from the flake cooling belt fan to UDAQ on November 10, 2020. Compass has also requested an update to its PTE. PM10 emissions increased due to more conservative estimates for the control rates of baghouses and scrubbers. Material handling emissions were reclassified by indoor or outdoor location. PM2.5 emissions decreased when the source used an emission factor for PM2.5 for material handling instead of assuming PM2.5 emissions were equal to PM10. NOx and SO2 emissions increased, and VOC emissions decreased due to generator emissions being updated based on manufacturer emission factors. VOC emissions also decreased with the removal of defoamer from the SOP plant operations. Process Description The process starts with the saturated brine that is pumped from the Great Salt Lake through an array of solar evaporation ponds located on 25,000 acres on the eastern shore of the lake. Halite is precipitated first in the salt ponds. The brine from the salt ponds is then directed to the potash ponds where a mixture of schoenite, kainite, carnalite, hexahydrite, and halite are precipitated. As salts and minerals precipitate in the ponds, Compass uses heavy machinery to windrow the ponds in order to remove water and improve the exposure of the solids and increase evaporation. The precipitated minerals and salts are then removed from the ponds via front-end loaders and taken by truck to stockpiles and processing facilities where it is used as feedstock for the salt and SOP processes. Finally, the remaining brine is returned to the Great Salt Lake or further concentrated and sold as a liquid product or used as feedstock for the magnesium chloride plant. 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) Ammonia -0.01 6.02 CO2 Equivalent 0 225583.00 Carbon Monoxide 2.54 161.36 Nitrogen Oxides 0.24 38.66 Particulate Matter - PM10 2.40 285.60 Particulate Matter - PM10 (Fugitives) 1.16 79.76 Particulate Matter - PM2.5 -0.88 131.75 Particulate Matter - PM2.5 (Fugitives) -10.10 9.71 Sulfur Dioxide 0.02 2.88 DAQE-AN109170042-22 Page 5 Volatile Organic Compounds -14.47 51.47 Volatile Organic Compounds - Fugitive -16.50 10.87 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Benzene (Including Benzene From Gasoline) (CAS #71432) 0 8 Cadmium (CAS #7440439) 0 4 Chlorine (CAS #7782505) 2804 6132 Chloroform (CAS #67663) 32 43832 Chromium Compounds (CAS #CMJ500) -1 5 Formaldehyde (CAS #50000) -3 4313 Generic HAPs (CAS #GHAPS) 0 4 Hexane (CAS #110543) 6770 6774 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 2803 58867 Manganese Compounds (CAS #MAR500) -1 1 Methanol (CAS #67561) 124 6432 Naphthalene (CAS #91203) 0 2 Nickel Compounds (CAS #NDB000) 0 8 Toluene (CAS #108883) -1 13 Change (TPY) Total (TPY) Total HAPs 6.27 63.20 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 five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] DAQE-AN109170042-22 Page 6 I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification of conveyor OC1550A (II.A.37) and the new BH1400 stack to the Director by October 7, 2023. This AO may become invalid if construction is not commenced by October 7, 2023 or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Production Plant Salt, Magnesium Chloride, and SOP II.A.2 Dryer 501 (D-501) Location: Salt Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by wet scrubber (AH-513) II.A.3 Dryer 1400 (D-1400) Location: SOP Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-1400) II.A.4 Dryer 1545 (D-1545) Location: SOP Plant - Compaction Capacity: 30 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-008) II.A.5 Wet Scrubber (AH-500) Location: Salt Plant Controls: Fluidized Bed Cooler, Bins & Hoppers, Conveyors, Crushers & Grinders, Feeders & Baggers, Mixers, Presses, and Rail Loading Mechanically Aided II.A.6 Baghouse (BH-501) Location: Salt Plant Controls: Fluidized bed cooler II.A.7 Wet Scrubber (AH-502) Location: Salt Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided II.A.8 Baghouse (BH-502) Location: Salt Plant Controls: Bins & Hoppers, Elevators, and truck loading operations DAQE-AN109170042-22 Page 7 II.A.9 Baghouse (BH-503) Location: Salt Plant Controls: Material handling in the salt special products system II.A.10 Baghouse (BH-505) Location: Salt Plant Controls: Material handling in the salt packing area Equipped with HEPA Filter and vented indoors. II.A.11 Wet Scrubber with Cyclone (AH-513) Location: Salt Plant Controls: Salt Dryer (D-501) Mechanically Aided with Variable Frequency Drive (VFD) II.A.12 Venturi Wet Scrubber (AH-692) Location: Magnesium Chloride Plant Controls: Bins & Hoppers, Conveyors, Crushers & Grinders, Elevators, Feeders & Baggers, and Screens II.A.13 Baghouse (BH-001) Location: SOP Plant Controls: Bins & Hoppers, Screens, and Truck and Rail loading operations II.A.14 Baghouse (BH-002) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens II.A.15 Baghouse with Cyclone (BH-008) Location: SOP Plant Controls: Conveyor and SOP Compaction Dryer (D-1545) II.A.16 Baghouse with Cyclones (BH-1400) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, Screens, and SOP Dryer (D-1400) II.A.17 Bin Vent Filter (BH-1505) Location: SOP Plant Controls: Bins & Hoppers II.A.18 Baghouse (BH-1516) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided with VFD II.A.19 Wet Scrubber (AH-1555) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, and Elevators Mechanically Aided with VFD II.A.20 Two Boilers Capacity: 108.11 MMBtu/hr (each) Fuel Type: Natural Gas Installed Controls: Ultra-Low NOx burner and flue gas re-circulation Monitoring: Continuous Emission Monitoring System (CEMS) NSPS Applicability: Subpart Db DAQE-AN109170042-22 Page 8 II.A.21 Submerged Combustion Water Heater (SC-450) Location: SOP Plant Capacity: 30 MMBtu/hr Fuel: Natural Gas II.A.22 Submerged Combustion Water Heater (SC-460) Location: SOP Plant Capacity: 60 MMBtu/hr Fuel: Natural Gas II.A.23 Four Magnesium Chloride Evaporators Two operating units with one primary and one secondary evaporator each Location: Magnesium Chloride Plant II.A.24 Two Cooling Towers (CT-003 & CT-004) Location: SOP Plant Re-circulation rate: 1500 gpm II.A.25 Cooling Tower (CT-639) Location: Magnesium Chloride Plant Re-circulation rate: 212 gpm II.A.26 Abrasive Blasting Capacity: 50 lb/hr II.A.27 Emergency Generator Engine (GN-100) Rating: 610 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.28 Emergency Generator Engines (GN-200 & GN-300) Quantity: Two Rating: 41 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.29 Emergency Generator Engine (GN-1200) Rating: 402 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.30 Emergency Generator Engine (GN-1300) Rating: 161 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.31 Emergency Generator Engine (GN-007) Rating: 235 hp Fuel: Diesel MACT Applicability: Subpart ZZZZ DAQE-AN109170042-22 Page 9 II.A.32 Emergency Generator Engine (GN-500) Rating: less than 100 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.33 Cooling Belt Fan (AH-696) Location: Magnesium Chloride Plant II.A.34 Fuel Tanks Fuel: Gasoline Quantity: One Capacity: 6,000 gallons Fuel: Diesel Quantity: Two Capacity: 10,000 gallons (each) II.A.35 SOP Silo Building Various Storage Silos Quantity: 11 Location: SOP Plant Controls: Fifteen dust torit cartridge filters; internally vented II.A.36 Dome Silos (12, 13, and 14) Location: SOP Plant II.A.37 Fully Enclosed Conveyors Location: SOP Plant ID's: OC014, OC015, OC1404, OC1405, OC1406, OC1501, OC1550A, OC283, OC284, OC294, OC298, OF012, OF013 II.A.38 Partially Enclosed Conveyors Location: SOP Plant ID: OC276, OC277/214, OC279, OC280, OC281 Location: Salt Plant ID: OC503 II.A.39 Various Conveyors and Bucket Elevators Location: Facility Wide II.A.40 Various Bins and Hoppers Location: Facility Wide II.A.41 Various Screens, Grinders, and Crushers SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a Unless otherwise specified in this AO, visible emissions from any stationary and fugitive emission source shall not exceed 10 percent opacity. This includes, but is not limited to, all wet scrubbers and all baghouses. [R307-401-8] DAQE-AN109170042-22 Page 10 II.B.1.a.1 Monitoring: A. Except as noted in B through D below, a visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. For baghouses subject to 40 CFR Part 64, the owner/operator shall designate one of the weekly opacity surveys to demonstrate compliance with the monthly survey requirement in this condition. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. B. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six- minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. C. For emission units located within a building, the requirements of paragraph A apply to each affected emission unit located within a building or for the building itself. If visible emissions from a building are monitored, the requirements of paragraph A apply to each side, roof, and vent of the building. The affected emission unit(s) shall be operating when monitoring is performed on the unit located within a building or on the building itself. D. The owner/operator is not required to perform monthly surveys on natural gas combustion sources, cooling towers, magnesium chloride evaporators, and petroleum storage tanks. [R307-401-8] II.B.1.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2 Salt Plant Requirements II.B.2.a The following production limits shall not be exceeded: A. 1,685,000 tons of salt harvested from ponds per rolling 12-month period B. 700,000 tons of road salt produced per rolling 12-month period C. 960,000 tons of dried salt produced per rolling 12-month period [R307-401-8] DAQE-AN109170042-22 Page 11 II.B.2.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.2.b Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the owner/operator shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.2.b.1 Monitoring: The owner/operator shall conduct a Method 22 performance test, or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit. A. Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA-approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. B. If any visible emissions are observed from an emission unit, the owner/operator shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within 1 hour of the initial survey. C. If no visible emissions are observed during four consecutive weekly tests, the owner/operator may decrease the frequency of the visible emissions test required in paragraph (A) from weekly to monthly. If visible emissions are observed during any monthly test, the owner/operator shall resume the weekly visible emissions test required in paragraph (A) and maintain that schedule until no visible emissions are observed in four consecutive weekly tests. [R307-401-8] II.B.2.b.2 Recordkeeping: The owner/operator shall keep a log of the visible emissions tests that contains the following information: time and date of test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] DAQE-AN109170042-22 Page 12 II.B.2.c Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All bin vents E. All storage piles F. All partially enclosed conveyance systems G. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses [R307-401-8] II.B.2.c.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.2.c.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] DAQE-AN109170042-22 Page 13 II.B.2.d Emissions to the atmosphere from the baghouses and wet scrubbers located at the Salt Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-500 1.61 1.61 0.01 AH-502 1.12 0.74 0.04 AH-513 1.49 1.49 0.0114 BH-501 1.30 1.15 0.01 BH-502 0.20 0.06 0.0053 BH-503 1.54 0.23 0.01 [R307-401-8] II.B.2.d.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.2.d.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.2.d.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.2.d.4 Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170042-22 Page 14 II.B.2.d.5 Source Operation The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.2.d.6 Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.2.d.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.2.d.8 Results 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] II.B.2.e The owner/operator shall vent Baghouse 505 (BH-505) indoors at all times during operation. [R307-401-8] DAQE-AN109170042-22 Page 15 II.B.3 Magnesium Chloride Plant Requirements II.B.3.a The following production limits shall not be exceeded: A. 1,000,000 tons of magnesium chloride liquid produced from ponds per rolling 12-month period B. 70,080 tons of magnesium chloride flake produced per rolling 12-month period [R307-401-8] II.B.3.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.3.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All storage piles E. All partially enclosed conveyance systems F. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses [R307-401-8] II.B.3.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] DAQE-AN109170042-22 Page 16 II.B.3.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.3.c With the exception of periods of startup, shutdown and maintenance, the owner/operator shall only operate one set of two evaporators at any one time. [R307-401-8] II.B.3.d The owner/operator shall not exceed 8,760 hours of operation combined from the two sets of evaporators per rolling 12-month period. Periods of startup, steady-state, and shutdown are to be included in this limit. Steam cleaning operations, where no chlorine is being added to the evaporators, are not considered part of this operational limit. [R307-401-8] II.B.3.d.1 The owner/operator shall demonstrate compliance with the rolling 12-month total by tracking the hours of operation for each set of evaporators. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of the hours of operation shall be kept for all periods when the plant is in operation. The records of operation shall be kept on a daily basis, and include startup, steady-state, and shutdown operational times. [R307-401-8] II.B.3.e Emissions to the atmosphere from the wet scrubber located at the Magnesium Chloride Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-692 0.15 0.12 0.01 Combined emissions to the atmosphere from each set of two Magnesium Chloride Plant Evaporators for VOC and HCl shall not exceed the following rates. Compliance with the limit shall be based on an average of 3 test runs: Emission Point VOC Emission Rate HCl Emission Rate (lb/hr) (lb/hr) MgCl2 Evaporators 6.18 6.40 [R307-401-8] DAQE-AN109170042-22 Page 17 II.B.3.e.1 Testing Frequency Compliance testing shall be performed at least once every 12 months (365 days) for AH-692. Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. Compliance testing for both VOC and HCl shall be performed at least once every three years for each train of the Magnesium Chloride Evaporators. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] II.B.3.e.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.3.e.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.3.e.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170042-22 Page 18 II.B.3.e.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) for the AH-692 scrubber, or the previous three (3) years for the magnesium chloride evaporators. B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.3.e.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.3.e.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.3.e.8 Volatile Organic Compounds (VOCs) VOC emissions shall be determined using 40 CFR 60, App. A, Method 25A using a flame ionization analyzer equipped with a methane separator. If such an analyzer is unavailable, VOC emissions shall be determined simultaneously using two analyzers, with one configured to read only methane. The difference between the total organic detector and the methane detector shall constitute the VOC measurement. [R307-165] DAQE-AN109170042-22 Page 19 II.B.3.e.9 HCl HCl emissions shall be determined using 40 CFR 60, Appendix A, Method 26, or 26A or other EPA-approved testing method, acceptable to the Director. [R307-401-8] II.B.3.e.10 Results 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] II.B.4 SOP Plant Requirements II.B.4.a The following production and operation limits shall not be exceeded: A. 5,300,000 tons of potash harvested from ponds per rolling 12-month period B. 1,680,000 tons of SOP produced per rolling 12-month period C. 432,000 tons of KCl used per rolling 12-month period [R307-401-8] II.B.4.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.4.b Visible emissions from all outdoor storage silos shall not exceed 10% opacity. Egress points to the dome silos shall remain closed at all times, except when mobile equipment is actively entering or exiting the silo during loading or unloading operations. [R307-401-8] II.B.4.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while loading or unloading operations are occurring at the silo. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. 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, or other EPA-approved testing method, as acceptable to the Director. The opacity determination shall be performed while loading or unloading operations are occurring at the silo. [R307-401-8] DAQE-AN109170042-22 Page 20 II.B.4.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. Documentation of maintenance performed on the silos to ensure they operate as fully enclosed structures when egress points are closed shall also be kept in the log. [R307-401-8] II.B.4.c Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the owner/operator shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.4.c.1 Monitoring: The owner/operator shall conduct a Method 22 performance test, or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit. A. Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA-approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. B. If any visible emissions are observed from an emission unit, the owner/operator shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within 1 hour of the initial survey. C. If no visible emissions are observed during four consecutive weekly tests, the owner/operator may decrease the frequency of the visible emissions test required in paragraph (A) from weekly to monthly. If visible emissions are observed during any monthly test, the owner/operator shall resume the weekly visible emissions test required in paragraph (A) and maintain that schedule until no visible emissions are observed in four consecutive weekly tests. [R307-401-8] II.B.4.c.2 Recordkeeping: The owner/operator shall keep a log of the visible emissions tests that contains the following information: time and date of test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] DAQE-AN109170042-22 Page 21 II.B.4.d Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loadout operations B. All storage piles C. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses D. All partially enclosed conveyance systems E. All conveyor drop points F. All conveyor transfer points G. All bin vents [R307-401-8] II.B.4.d.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.4.d.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.e All partially enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] DAQE-AN109170042-22 Page 22 II.B.4.f Emissions to the atmosphere from the baghouses and wet scrubbers located at the SOP Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-1555 2.61 0.39 0.01 BH-001 0.37 0.37 0.01 BH-002 0.65 0.47 0.01 BH-008 4.25 4.25 0.01 BH-1400 2.78 2.78 0.02 BH-1516 1.46 0.22 0.01 [R307-401-8] II.B.4.f.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.4.f.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.4.f.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.4.f.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170042-22 Page 23 II.B.4.f.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.4.f.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.4.f.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.4.f.8 Results 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] DAQE-AN109170042-22 Page 24 II.B.5 Boiler Requirements II.B.5.a NOx emissions to the atmosphere from each of the two boilers on site shall not exceed the following rates and concentrations: Rate (lbs/hr) Concentration (ppm) 1.30 9.0 Compliance with the limit shall be based on an average of 3 test runs. [R307-401-8] II.B.5.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every 12 months (365 days). Compliance tests shall be no less than 9 months (270 days) apart. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.5.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.5.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.5.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170042-22 Page 25 II.B.5.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.5.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.5.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.5.a.8 Results 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] II.B.6 Dryer Requirements II.B.6.a Emissions to the atmosphere from each of the three dryers on site (D-501, D-1400, and D-1545) for NOx shall not exceed 20 ppm at 3% O2. Compliance with the limits shall be based on an average of 3 test runs. [R307-401-8] II.B.6.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every three years. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] DAQE-AN109170042-22 Page 26 II.B.6.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.6.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.6.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.6.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous three (3) years. B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.6.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] DAQE-AN109170042-22 Page 27 II.B.6.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.6.a.8 Results 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] II.B.7 Baghouse and Wet Scrubber Requirements II.B.7.a Each baghouse shall operate within the static pressure range recommended by the manufacturer for normal operations. The static pressure range shall be clearly labeled on each baghouse such that an inspector/operator can safely read the range at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across each of the baghouses. The pressure gauges shall be located such that an inspector/operator can safely read the indicator at any time. For baghouses that monitor pressure drop to demonstrate compliance with 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] II.B.7.a.1 Pressure drop readings from each baghouse shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop for the unit; C. Daily pressure drop readings; and D. Date of bag replacements. [R307-401-8] II.B.7.a.2 The pressure gauges of each baghouse shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. [R307-401-8] II.B.7.b Each wet scrubber shall operate within the static pressure range and liquid flow rate recommended by the manufacturer for normal operations. These parameters shall be clearly labeled on each scrubber such that an inspector/operator can safely read the parameters at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across the wet scrubber. Flow rate meters shall be installed to measure the liquid flow rate in the scrubber. The pressure gauges and flow rate meters shall be located such that an inspector/operator can safely read the indicators at any time. For scrubbers that are subject to 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] DAQE-AN109170042-22 Page 28 II.B.7.b.1 Pressure drop and liquid flow rate readings from each wet scrubber shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop and liquid flow rate for the unit; C. Daily pressure drop readings; and D. Daily liquid flow rate readings. [R307-401-8] II.B.7.b.2 The gauges and meters on each wet scrubber shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. For scrubbers that monitor liquid flow rate to demonstrate compliance with 40 CFR Part 64, the liquid flow rate requirements in this condition shall not apply. All other requirements in this condition remain applicable. [R307-401-8] II.B.8 Engine Requirements II.B.8.a Visible emissions from diesel-fired emergency generator engines shall not exceed 20% opacity. [R307-401-8] II.B.8.a.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a quarterly basis while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than steam are observed from an emission unit, a 6-minute opacity determination of that emission unit shall be performed by a certified observer within 1 hour of the initial survey. The opacity determination shall be performed while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. If the generator(s) continue to operate on consecutive days following the initial observation, a 6-minute opacity determination shall be performed by a certified observer on a daily basis, while the unit is operating, in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. [R307-401-8] II.B.8.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.8.b Visible emissions from propane-fired emergency generator engines shall not exceed 10% opacity. [R307-401-8] DAQE-AN109170042-22 Page 29 II.B.8.b.1 Monitoring: In lieu of monitoring via visible emission observations, records shall be kept for any period that a fuel other than propane is used in the affected emission unit. [R307-401-8] II.B.8.b.2 Recordkeeping: Records shall be kept in a log that is kept in a readily accessible location onsite. [R307-401-8] II.B.8.c The owner/operator shall use the emergency generator engines for electricity-producing operations only during the periods when electric power from the public utilities is interrupted. [R307-401-8] II.B.8.d The owner/operator shall track hours of operation for each emergency generator engine as required to comply with all applicable federal subparts. [40 CFR 60 Subpart IIII, 40 CFR 60 Subpart JJJJ, 40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.9 Fuel Requirements II.B.9.a The owner/operator shall only use diesel fuel (fuel oil #1, #2 or diesel fuel oil additives) in the diesel fired engines on site. All diesel burned shall contain no more than 15 ppm sulfur. [R307-401-8] II.B.9.a.1 To demonstrate compliance with the diesel fuel requirements for any diesel fuel purchased, the owner/operator shall keep and maintain fuel purchase invoices. The fuel purchase invoices shall indicate that the diesel fuel meets the sulfur requirements, or the owner/operator shall obtain certification of sulfur content from the fuel supplier. [R307-401-8] II.B.9.b The owner/operator shall only use propane as fuel in the propane fired engines on site. [R307-401-8] II.B.9.c The owner/operator shall use only pipeline quality natural gas as a fuel source for all boilers and burners. [R307-401-8] II.B.10 Haul Roads and Fugitive Dust Requirements II.B.10.a The owner/operator shall comply with all applicable requirements of R307-309 for PM10 and PM2.5 non-attainment areas for fugitive emissions and fugitive dust source. At least once every three years, the fugitive dust control plan shall be reviewed and evaluated. If site modifications that result in emission changes have been made, an updated fugitive dust control plan shall be submitted as required by R307-309-6(3). [R307-309, R307-401-8] II.B.10.b Visible emissions in disturbed, operational areas, and unpaved haul roads from haul trucks and other mobile equipment shall not exceed 20% opacity at any point. [R307-401-8] II.B.10.b.1 In lieu of monitoring via visible emissions observations, adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that the opacity limit is not exceeded and that appropriate measures are being implemented to control fugitive dust. [R307-309, R307-401-8] II.B.10.c Vehicles speeds shall be limited to 30 miles per hour on haul roads and 15 miles per hour in off-road areas. The vehicle speed limits shall be clearly visible and posted, at a minimum, on site at the entrance to off-road areas and the beginning of the haul road. [R307-401-8] DAQE-AN109170042-22 Page 30 II.B.10.d The owner/operator shall spray all unpaved haul roads with water, brine, or a chemical suppressant to control fugitive dust and maintain the opacity limit listed in this AO. [R307-401-8] II.B.10.d.1 Records of water or chemical treatment shall be kept for all periods when the plant is in operation. The owner/operator may stop applying suppressants when the temperature is below freezing. The records shall include the following: A. Date B. Location of treatment C. Rainfall received, if any, and approximate amount D. Records of temperature if the temperature is below freezing. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN109170043-22 dated April 7, 2022 Is Derived From Voluntary Disclosure Notice dated November 10, 2020 Is Derived From NOI dated December 30, 2020 Incorporates Additional Information dated November 8, 2021 Incorporates Additional Information dated January 4, 2022 Incorporates Additional Information dated January 17, 2021 Incorporates Additional Information dated February 28, 2022 DAQE-AN109170042-22 Page 31 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-AN109170044-23 {{$d1 }} Dean Thompson Compass Minerals Ogden Incorporated 9900 West 109th Street Overland Park, KS 66210 ThompsonDe@compassminerals.com Dear Mr. Thompson: Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN109170042-22 to Clarify Conditions Project Number: N109170044 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on October 5, 2022. Compass Minerals Ogden Incorporated must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is John Jenks, who can be contacted at (385) 306-6510 or jjenks@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. Sincerely, {{$s }} Bryce C. Bird Director BCB:JJ:jg cc: Weber-Morgan Health Department Dan Fagnant, 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 L B ÛĄ ÛÙÛÜ 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-AN109170044-23 Administrative Amendment to Approval Order DAQE-AN109170042-22 to Clarify Conditions Prepared By John Jenks, Engineer (385) 306-6510 jjenks@utah.gov Issued to Compass Minerals Ogden Incorporated - Production Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director Division of Air Quality March 2, 2023 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 .................................................................................................... 5 SECTION I: GENERAL PROVISIONS .................................................................................... 5 SECTION II: PERMITTED EQUIPMENT .............................................................................. 6 SECTION II: SPECIAL PROVISIONS ................................................................................... 10 PERMIT HISTORY ................................................................................................................... 27 ACRONYMS ............................................................................................................................... 28 DAQE-AN109170044-23 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Compass Minerals Ogden Incorporated Compass Minerals Ogden Incorporated - Production Plant Mailing Address Physical Address 9900 West 109th Street 765 North 10500 West Overland Park, KS 66210 Ogden, UT 84404 Source Contact UTM Coordinates Name Dean Thompson 396,869 m Easting Phone (801) 732-3312 4,570,651 m Northing Email ThompsonDe@compassminerals.com Datum NAD83 UTM Zone 12 SIC code 2819 (Industrial Inorganic Chemicals, NEC) SOURCE INFORMATION General Description Compass Minerals Ogden Incorporated (Compass) harvests and processes salt and minerals from the Great Salt Lake to produce sulfate of potash (SOP), salt, and magnesium chloride. NSR Classification Administrative Amendment Source Classification Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA Weber County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Db: Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark 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), DDDDD: National Emission Standards for Hazardous Air Pollutants for DAQE-AN109170044-23 Page 4 Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters Title V (Part 70) Major Source Project Description Compass has requested the following changes to its current AO DAQE-AN109170042-22: 1. Clarify Emission Control of Salt Plant Fluidized Bed Cooler: In late 2020, Compass permanently isolated scrubber AH-500 from the Salt Plant fluidized bed cooler to improve emissions control and dryer efficiency. Isolating AH-500 from the fluidized bed cooler diverted all emissions to BH-501 and AH-500 now exclusively pulls emissions from salt packaging lines. This resulted in an overall reduction of emissions and the modification was eligible for the Reduction in Air Pollutants exemption found in UAC R307-401-12. Utah Division Air Quality (UDAQ) was notified of this change in a letter dated October 28, 2020. Language to this effect should be incorporated into the current AO to reflect current operating conditions. 2. Clarify that there are no outdoor fully enclosed conveyors at the Salt Plant: With reference to the NOI dated October 30, 2020, Compass determined that several units identified as outdoor fully and partially enclosed conveyors were misclassified on the AO (DAQE-AN109170039-20). Compass requested that the list of outdoor fully and partially enclosed conveyors contained in the AO be corrected. Compass also requested UDAQ remove the requirement to conduct weekly 10-minute Method 22 visible emission tests on this same equipment. In the subsequent AO (DAQE-AN109170043-22) the equipment list was updated but the conditions remained. As there are no units in the Salt Plant to which this requirement would now apply, these conditions should be removed. 3. Clarify requirement to conduct compliance testing every 270 to 365 days: Compass has found the existing language regarding the timing/scheduling of compliance testing challenging. This condition can advance the stack testing schedule by about a month every year. Thus, the requirement will soon conflict with Compass' annual shutdown schedule, which is often the only opportunity to conduct routine inspections and repairs on control equipment. Compass has proposed that this be replaced with a requirement to test in the same calendar quarter each year going forward. These changes can all be addressed administratively thus, no public comment period is required. A significant modification under Title V will be required. DAQE-AN109170044-23 Page 5 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) Ammonia 0 6.02 CO2 Equivalent 0 225583.00 Carbon Monoxide 0 161.36 Nitrogen Oxides 0 38.66 Particulate Matter - PM10 0 285.60 Particulate Matter - PM10 (Fugitives) 0 79.76 Particulate Matter - PM2.5 0 131.75 Particulate Matter - PM2.5 (Fugitives) 0 9.71 Sulfur Dioxide 0 2.88 Volatile Organic Compounds 0 51.47 Volatile Organic Compounds - Fugitive 0 10.87 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Benzene (Including Benzene From Gasoline) (CAS #71432) 0 8 Cadmium (CAS #7440439) 0 4 Chlorine (CAS #7782505) 0 6132 Chloroform (CAS #67663) 0 43832 Chromium Compounds (CAS #CMJ500) 0 5 Formaldehyde (CAS #50000) 0 4313 Generic HAPs (CAS #GHAPS) 0 4 Hexane (CAS #110543) 0 6774 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 58867 Manganese Compounds (CAS #MAR500) 0 1 Methanol (CAS #67561) 0 6432 Naphthalene (CAS #91203) 0 2 Nickel Compounds (CAS #NDB000) 0 8 Toluene (CAS #108883) 0 13 Change (TPY) Total (TPY) Total HAPs 0 63.20 SECTION I: GENERAL PROVISIONS I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions refer to those rules. [R307-101] I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401] I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1] DAQE-AN109170044-23 Page 6 I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification of conveyor OC1550A (II.A.37) and the new BH1400 stack to the Director by October 7, 2023. This AO may become invalid if construction is not commenced by October 7, 2023 or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Production Plant Salt, Magnesium Chloride, and SOP II.A.2 Dryer 501 (D-501) Location: Salt Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by wet scrubber (AH-513) II.A.3 Dryer 1400 (D-1400) Location: SOP Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-1400) II.A.4 Dryer 1545 (D-1545) Location: SOP Plant - Compaction Capacity: 30 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-008) DAQE-AN109170044-23 Page 7 II.A.5 Wet Scrubber (AH-500) Location: Salt Plant Controls: Coolers, Bins & Hoppers, Conveyors, Crushers & Grinders, Feeders & Baggers, Mixers, Presses, and Rail Loading Mechanically Aided II.A.6 Baghouse (BH-501) Location: Salt Plant Controls: Fluidized bed cooler II.A.7 Wet Scrubber (AH-502) Location: Salt Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided II.A.8 Baghouse (BH-502) Location: Salt Plant Controls: Bins & Hoppers, Elevators, and truck loading operations II.A.9 Baghouse (BH-503) Location: Salt Plant Controls: Material handling in the salt special products system II.A.10 Baghouse (BH-505) Location: Salt Plant Controls: Material handling in the salt packing area Equipped with HEPA Filter and vented indoors. II.A.11 Wet Scrubber with Cyclone (AH-513) Location: Salt Plant Controls: Salt Dryer (D-501) Mechanically Aided with Variable Frequency Drive (VFD) II.A.12 Venturi Wet Scrubber (AH-692) Location: Magnesium Chloride Plant Controls: Bins & Hoppers, Conveyors, Crushers & Grinders, Elevators, Feeders & Baggers, and Screens II.A.13 Baghouse (BH-001) Location: SOP Plant Controls: Bins & Hoppers, Screens, and Truck and Rail loading operations II.A.14 Baghouse (BH-002) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens II.A.15 Baghouse with Cyclone (BH-008) Location: SOP Plant Controls: Conveyor and SOP Compaction Dryer (D-1545) II.A.16 Baghouse with Cyclones (BH-1400) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, Screens, and SOP Dryer (D-1400) II.A.17 Bin Vent Filter (BH-1505) Location: SOP Plant Controls: Bins & Hoppers DAQE-AN109170044-23 Page 8 II.A.18 Baghouse (BH-1516) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, Elevators, and Screens Mechanically Aided with VFD II.A.19 Wet Scrubber (AH-1555) Location: SOP Plant Controls: Bins & Hoppers, Conveyors, and Elevators Mechanically Aided with VFD II.A.20 Two Boilers Capacity: 108.11 MMBtu/hr (each) Fuel Type: Natural Gas Installed Controls: Ultra-Low NOx burner and flue gas re-circulation Monitoring: Continuous Emission Monitoring System (CEMS) NSPS Applicability: Subpart Db II.A.21 Submerged Combustion Water Heater (SC-450) Location: SOP Plant Capacity: 30 MMBtu/hr Fuel: Natural Gas II.A.22 Submerged Combustion Water Heater (SC-460) Location: SOP Plant Capacity: 60 MMBtu/hr Fuel: Natural Gas II.A.23 Four Magnesium Chloride Evaporators Two operating units with one primary and one secondary evaporator each Location: Magnesium Chloride Plant II.A.24 Two Cooling Towers (CT-003 & CT-004) Location: SOP Plant Re-circulation rate: 1500 gpm II.A.25 Cooling Tower (CT-639) Location: Magnesium Chloride Plant Re-circulation rate: 212 gpm II.A.26 Abrasive Blasting Capacity: 50 lb/hr II.A.27 Emergency Generator Engine (GN-100) Rating: 610 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.28 Emergency Generator Engines (GN-200 & GN-300) Quantity: Two Rating: 41 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ DAQE-AN109170044-23 Page 9 II.A.29 Emergency Generator Engine (GN-1200) Rating: 402 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.30 Emergency Generator Engine (GN-1300) Rating: 161 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.31 Emergency Generator Engine (GN-007) Rating: 235 hp Fuel: Diesel MACT Applicability: Subpart ZZZZ II.A.32 Emergency Generator Engine (GN-500) Rating: less than 100 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.33 Cooling Belt Fan (AH-696) Location: Magnesium Chloride Plant II.A.34 Fuel Tanks Fuel: Gasoline Quantity: One Capacity: 6,000 gallons Fuel: Diesel Quantity: Two Capacity: 10,000 gallons (each) II.A.35 SOP Silo Building Various Storage Silos Quantity: 11 Location: SOP Plant Controls: Fifteen dust Torit cartridge filters; internally vented II.A.36 Dome Silos (12, 13, and 14) Location: SOP Plant II.A.37 Fully Enclosed Conveyors Location: SOP Plant ID's: OC014, OC015, OC1404, OC1405, OC1406, OC1501, OC1550A, OC283, OC284, OC294, OC298, OF012, OF013 II.A.38 Partially Enclosed Conveyors Location: SOP Plant ID: OC276, OC277/214, OC279, OC280, OC281 Location: Salt Plant ID: OC503 DAQE-AN109170044-23 Page 10 II.A.39 Various Conveyors and Bucket Elevators Location: Facility Wide II.A.40 Various Bins and Hoppers Location: Facility Wide II.A.41 Various Screens, Grinders, and Crushers SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a Unless otherwise specified in this AO, visible emissions from any stationary and fugitive emission source shall not exceed 10 percent opacity. This includes, but is not limited to, all wet scrubbers and all baghouses. [R307-401-8] II.B.1.a.1 Monitoring: A. Except as noted in B through D below, a visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. For baghouses subject to 40 CFR Part 64, the owner/operator shall designate one of the weekly opacity surveys to demonstrate compliance with the monthly survey requirement in this condition. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. B. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. C. For emission units located within a building, the requirements of paragraph A apply to each affected emission unit located within a building or for the building itself. If visible emissions from a building are monitored, the requirements of paragraph A apply to each side, roof, and vent of the building. The affected emission unit(s) shall be operating when monitoring is performed on the unit located within a building or on the building itself. D. The owner/operator is not required to perform monthly surveys on natural gas combustion sources, cooling towers, magnesium chloride evaporators, and petroleum storage tanks. [R307-401-8] DAQE-AN109170044-23 Page 11 II.B.1.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2 Salt Plant Requirements II.B.2.a The following production limits shall not be exceeded: A. 1, 685,000 tons of salt harvested from ponds per rolling 12-month period B. 700,000 tons of road salt produced per rolling 12-month period C. 960,000 tons of dried salt produced per rolling 12-month period. [R307-401-8] II.B.2.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.2.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All bin vents E. All storage piles F. All partially enclosed conveyance systems G. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses. [R307-401-8] DAQE-AN109170044-23 Page 12 II.B.2.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.2.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2.c Emissions to the atmosphere from the baghouses and wet scrubbers located at the Salt Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-500 1.61 1.61 0.01 AH-502 1.12 0.74 0.04 AH-513 1.49 1.49 0.0114 BH-501 1.30 1.15 0.01 BH-502 0.20 0.06 0.0053 BH-503 1.54 0.23 0.01 [R307-401-8] II.B.2.c.1 Testing Frequency Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.2.c.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] DAQE-AN109170044-23 Page 13 II.B.2.c.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.2.c.4 Calculations To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.2.c.5 Source Operation The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.2.c.6 Volumetric Flow Rate 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.2.c.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.2.c.8 Results 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] DAQE-AN109170044-23 Page 14 II.B.2.d The owner/operator shall vent Baghouse 505 (BH-505) indoors at all times during operation. [R307-401-8] II.B.3 Magnesium Chloride Plant Requirements II.B.3.a The following production limits shall not be exceeded: A. 1,000,000 tons of magnesium chloride liquid produced from ponds per rolling 12-month period B. 70,080 tons of magnesium chloride flake produced per rolling 12-month period. [R307-401-8] II.B.3.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.3.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations B. All conveyor drop points C. All conveyor transfer points D. All storage piles E. All partially enclosed conveyance systems F. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses. [R307-401-8] II.B.3.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] DAQE-AN109170044-23 Page 15 II.B.3.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.3.c With the exception of periods of startup, shutdown and maintenance, the owner/operator shall only operate one set of two evaporators at any one time. [R307-401-8] II.B.3.d The owner/operator shall not exceed 8,760 hours of operation combined from the two sets of evaporators per rolling 12-month period. Periods of startup, steady-state, and shutdown are to be included in this limit. Steam cleaning operations, where no chlorine is being added to the evaporators, are not considered part of this operational limit. [R307-401-8] II.B.3.d.1 The owner/operator shall demonstrate compliance with the rolling 12-month total by tracking the hours of operation for each set of evaporators. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of the hours of operation shall be kept for all periods when the plant is in operation. The records of operation shall be kept on a daily basis, and include startup, steady-state, and shutdown operational times. [R307-401-8] II.B.3.e Emissions to the atmosphere from the wet scrubber located at the Magnesium Chloride Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-692 0.15 0.12 0.01 Combined emissions to the atmosphere from each set of two Magnesium Chloride Plant Evaporators for VOC and HCl shall not exceed the following rates. Compliance with the limit shall be based on an average of 3 test runs: Emission Point VOC Emission Rate HCl Emission Rate (lb/hr) (lb/hr) MgCl2 Evaporators 6.18 6.40 [R307-401-8] II.B.3.e.1 Testing Frequency Compliance testing for AH-692 shall be performed at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. Compliance testing for both VOC and HCl shall be performed at least once every three years for each train of the Magnesium Chloride Evaporators. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] DAQE-AN109170044-23 Page 16 II.B.3.e.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.3.e.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.3.e.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.3.e.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) for the AH-692 scrubber, or the previous three (3) years for the magnesium chloride evaporators. B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.3.e.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] DAQE-AN109170044-23 Page 17 II.B.3.e.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.3.e.8 Volatile Organic Compounds (VOCs) VOC emissions shall be determined using 40 CFR 60, App. A, Method 25A using a flame ionization analyzer equipped with a methane separator. If such an analyzer is unavailable, VOC emissions shall be determined simultaneously using two analyzers, with one configured to read only methane. The difference between the total organic detector and the methane detector shall constitute the VOC measurement. [R307-165] II.B.3.e.9 HCl HCl emissions shall be determined using 40 CFR 60, Appendix A, Method 26, or 26A or other EPA-approved testing method, acceptable to the Director. [R307-401-8] II.B.3.e.10 Results 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] II.B.4 SOP Plant Requirements II.B.4.a The following production and operation limits shall not be exceeded: A. 5,300,000 tons of potash harvested from ponds per rolling 12-month period B. 1,680,000 tons of SOP produced per rolling 12-month period C. 432,000 tons of KCl used per rolling 12-month period. [R307-401-8] II.B.4.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.4.b Visible emissions from all outdoor storage silos shall not exceed 10% opacity. Egress points to the dome silos shall remain closed at all times, except when mobile equipment is actively entering or exiting the silo during loading or unloading operations. [R307-401-8] DAQE-AN109170044-23 Page 18 II.B.4.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while loading or unloading operations are occurring at the silo. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. 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, or other EPA-approved testing method, as acceptable to the Director. The opacity determination shall be performed while loading or unloading operations are occurring at the silo. [R307-401-8] II.B.4.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. Documentation of maintenance performed on the silos to ensure they operate as fully enclosed structures when egress points are closed shall also be kept in the log. [R307-401-8] II.B.4.c Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the owner/operator shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.4.c.1 Monitoring: The owner/operator shall conduct a Method 22 performance test, or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit. A. Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA- approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. B. If any visible emissions are observed from an emission unit, the owner/operator shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within 1 hour of the initial survey. C. If no visible emissions are observed during four consecutive weekly tests, the owner/operator may decrease the frequency of the visible emissions test required in paragraph (A) from weekly to monthly. If visible emissions are observed during any monthly test, the owner/operator shall resume the weekly visible emissions test required in paragraph (A) and maintain that schedule until no visible emissions are observed in four consecutive weekly tests. [R307-401-8] DAQE-AN109170044-23 Page 19 II.B.4.c.2 Recordkeeping: The owner/operator shall keep a log of the visible emissions tests that contains the following information: time and date of test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.d Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loadout operations B. All storage piles C. All material handling operations which includes the following: bins & hoppers, screens, crushers, grinders, and presses D. All partially enclosed conveyance systems E. All conveyor drop points F. All conveyor transfer points G. All bin vents. [R307-401-8] II.B.4.d.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, however, the requirement for observations to be made at 15 second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.4.d.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9 and/or 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.e All partially enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] DAQE-AN109170044-23 Page 20 II.B.4.f Emissions to the atmosphere from the baghouses and wet scrubbers located at the SOP Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-1555 2.61 0.39 0.01 BH-001 0.37 0.37 0.01 BH-002 0.65 0.47 0.01 BH-008 4.25 4.25 0.01 BH-1400 2.78 2.78 0.02 BH-1516 1.46 0.22 0.01 [R307-401-8] II.B.4.f.1 Testing Frequency Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.4.f.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.4.f.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.4.f.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170044-23 Page 21 II.B.4.f.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) B. 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 C. 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 permitted production rate is achieved. [R307-165] II.B.4.f.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.4.f.7 PM10/PM2.5 For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.4.f.8 Results 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] II.B.5 Boiler Requirements II.B.5.a NOx emissions to the atmosphere from each of the two boilers on site shall not exceed the following rates and concentrations: Rate (lbs/hr) Concentration (ppm) 1.30 9.0 Compliance with the limit shall be based on an average of 3 test runs. [R307-401-8] DAQE-AN109170044-23 Page 22 II.B.5.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.5.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.5.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.5.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.5.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) B. 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 C. 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 permitted production rate is achieved. [R307-165] II.B.5.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.5.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.5.a.8 Results 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] DAQE-AN109170044-23 Page 23 II.B.6 Dryer Requirements II.B.6.a Emissions to the atmosphere from each of the three dryers on site (D-501, D-1400, and D-1545) for NOx shall not exceed 20 ppm at 3% O2. Compliance with the limits shall be based on an average of 3 test runs. [R307-401-8] II.B.6.a.1 Testing Frequency Compliance testing shall be done on each emission source at least once every three years. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] II.B.6.a.2 Notification The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.6.a.3 Sample Location The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA approved methods acceptable to 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. [R307-165] II.B.6.a.4 Calculations: To determine mass emission rates (lb/hr, etc.) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.6.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous three (3) years B. 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 C. 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 permitted production rate is achieved. [R307-165] II.B.6.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA approved testing methods acceptable to the Director. [R307-165] II.B.6.a.7 Nitrogen Oxides NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] DAQE-AN109170044-23 Page 24 II.B.6.a.8 Results 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] II.B.7 Baghouse and Wet Scrubber Requirements II.B.7.a Each baghouse shall operate within the static pressure range recommended by the manufacturer for normal operations. The static pressure range shall be clearly labeled on each baghouse such that an inspector/operator can safely read the range at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across each of the baghouses. The pressure gauges shall be located such that an inspector/operator can safely read the indicator at any time. For baghouses that monitor pressure drop to demonstrate compliance with 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] II.B.7.a.1 Pressure drop readings from each baghouse shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop for the unit; C. Daily pressure drop readings; and D. Date of bag replacements. [R307-401-8] II.B.7.a.2 The pressure gauges of each baghouse shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. [R307-401-8] II.B.7.b Each wet scrubber shall operate within the static pressure range and liquid flow rate recommended by the manufacturer for normal operations. These parameters shall be clearly labeled on each scrubber such that an inspector/operator can safely read the parameters at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across the wet scrubber. Flow rate meters shall be installed to measure the liquid flow rate in the scrubber. The pressure gauges and flow rate meters shall be located such that an inspector/operator can safely read the indicators at any time. For scrubbers that are subject to 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] DAQE-AN109170044-23 Page 25 II.B.7.b.1 Pressure drop and liquid flow rate readings from each wet scrubber shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop and liquid flow rate for the unit; C. Daily pressure drop readings; and D. Daily liquid flow rate readings. [R307-401-8] II.B.7.b.2 The gauges and meters on each wet scrubber shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. For scrubbers that monitor liquid flow rate to demonstrate compliance with 40 CFR Part 64, the liquid flow rate requirements in this condition shall not apply. All other requirements in this condition remain applicable. [R307-401-8] II.B.8 Engine Requirements II.B.8.a Visible emissions from diesel-fired emergency generator engines shall not exceed 20% opacity. [R307-401-8] II.B.8.a.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a quarterly basis while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than steam are observed from an emission unit, a 6-minute opacity determination of that emission unit shall be performed by a certified observer within 1 hour of the initial survey. The opacity determination shall be performed while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. If the generator(s) continue to operate on consecutive days following the initial observation, a 6-minute opacity determination shall be performed by a certified observer on a daily basis, while the unit is operating, in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. [R307-401-8] II.B.8.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.8.b Visible emissions from propane-fired emergency generator engines shall not exceed 10% opacity. [R307-401-8] II.B.8.b.1 Monitoring: In lieu of monitoring via visible emission observations, records shall be kept for any period that a fuel other than propane is used in the affected emission unit. [R307-401-8] DAQE-AN109170044-23 Page 26 II.B.8.b.2 Recordkeeping: Records shall be kept in a log that is kept in a readily accessible location onsite. [R307-401-8] II.B.8.c The owner/operator shall use the emergency generator engines for electricity-producing operations only during the periods when electric power from the public utilities is interrupted. [R307-401-8] II.B.8.d The owner/operator shall track hours of operation for each emergency generator engine as required to comply with all applicable federal subparts. [40 CFR 60 Subpart IIII, 40 CFR 60 Subpart JJJJ, 40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.9 Fuel Requirements II.B.9.a The owner/operator shall only use diesel fuel (fuel oil #1, #2 or diesel fuel oil additives) in the diesel fired engines on site. All diesel burned shall contain no more than 15 ppm sulfur. [R307-401-8] II.B.9.a.1 To demonstrate compliance with the diesel fuel requirements for any diesel fuel purchased, the owner/operator shall keep and maintain fuel purchase invoices. The fuel purchase invoices shall indicate that the diesel fuel meets the sulfur requirements, or the owner/operator shall obtain certification of sulfur content from the fuel supplier. [R307-401-8] II.B.9.b The owner/operator shall only use propane as fuel in the propane fired engines on site. [R307-401-8] II.B.9.c The owner/operator shall use only pipeline quality natural gas as a fuel source for all boilers and burners. [R307-401-8] II.B.10 Haul Roads and Fugitive Dust Requirements II.B.10.a The owner/operator shall comply with all applicable requirements of R307-309 for PM10 and PM2.5 non-attainment areas for fugitive emissions and fugitive dust source. At least once every three years, the fugitive dust control plan shall be reviewed and evaluated. If site modifications that result in emission changes have been made, an updated fugitive dust control plan shall be submitted as required by R307-309-6(3). [R307-309, R307-401-8] II.B.10.b Visible emissions in disturbed, operational areas, and unpaved haul roads from haul trucks and other mobile equipment shall not exceed 20% opacity at any point. [R307-401-8] II.B.10.b.1 In lieu of monitoring via visible emissions observations, adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that the opacity limit is not exceeded and that appropriate measures are being implemented to control fugitive dust. [R307-309, R307-401-8] II.B.10.c Vehicles speeds shall be limited to 30 miles per hour on haul roads and 15 miles per hour in off-road areas. The vehicle speed limits shall be clearly visible and posted, at a minimum, on site at the entrance to off-road areas and the beginning of the haul road. [R307-401-8] II.B.10.d The owner/operator shall spray all unpaved haul roads with water, brine, or a chemical suppressant to control fugitive dust and maintain the opacity limit listed in this AO. [R307-401-8] DAQE-AN109170044-23 Page 27 II.B.10.d.1 Records of water or chemical treatment shall be kept for all periods when the plant is in operation. The owner/operator may stop applying suppressants when the temperature is below freezing. The records shall include the following: A. Date B. Location of treatment C. Rainfall received, if any, and approximate amount D. Records of temperature if the temperature is below freezing. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN109170042-22 dated August 15, 2022 Is Derived From Source Submitted NOI dated October 5, 2022 DAQE-AN109170044-23 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 DAQE-AN109170049-24 {{$d1 }} Kenneth Potts Compass Minerals Ogden Incorporated 9900 West 109th Street Overland Park, KS 66210 HurstH@compassminerals.com Dear Mr. Potts: Re: Approval Order: Modification to Approval Order DAQE-AN109170044-23 to Remove Salt Harvesting Limit and add Fortress Equipment Project Number: N109170049 The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on February 12, 2024. Compass Minerals Ogden Incorporated must comply with the requirements of this AO, all applicable state requirements (R307), and Federal Standards. The project engineer for this action is John Jenks, who can be contacted at (385) 306-6510 or jjenks@utah.gov. Future correspondence on this AO should include the engineer's name as well as the DAQE number shown on the upper right-hand corner of this letter. No public comments were received on this action. Sincerely, {{$s }} Bryce C. Bird Director BCB:JJ:jg cc: Weber-Morgan Health Department 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 S ᥠÛÙÛÝ 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-AN109170049-24 Modification to Approval Order DAQE-AN109170044-23 to Remove Salt Harvesting Limit and add Fortress Equipment Prepared By John Jenks, Engineer (385) 306-6510 jjenks@utah.gov Issued to Compass Minerals Ogden Incorporated - Production Plant Issued On {{$d2 }} Issued By {{$s }} Bryce C. Bird Director Division of Air Quality May 8, 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 ..................................................................................... 9 PERMIT HISTORY ................................................................................................................... 27 ACRONYMS ............................................................................................................................... 28 DAQE-AN109170049-24 Page 3 GENERAL INFORMATION CONTACT/LOCATION INFORMATION Owner Name Source Name Compass Minerals Ogden Incorporated Compass Minerals Ogden Incorporated - Production Plant Mailing Address Physical Address 9900 West 109th Street 765 North 10500 West Overland Park, KS 66210 Ogden, UT 84404 Source Contact UTM Coordinates Name: Holly Hurst 396,869 m Easting Phone: (801) 732-3251 4,570,651 m Northing Email: HurstH@compassminerals.com Datum NAD83 UTM Zone 12 SIC code 2819 (Industrial Inorganic Chemicals, NEC) SOURCE INFORMATION General Description Compass Minerals Ogden Incorporated (Compass) harvests and processes salt and minerals from the Great Salt Lake to produce sulfate of potash (SOP), salt, and magnesium chloride. NSR Classification Minor Modification at Major Source Source Classification Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA Weber County Airs Source Size: A Applicable Federal Standards NSPS (Part 60), A: General Provisions NSPS (Part 60), Db: Standards of Performance for Industrial-Commercial-Institutional Steam Generating Units NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal Combustion Engines NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal Combustion Engines MACT (Part 63), A: General Provisions MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines DAQE-AN109170049-24 Page 4 MACT (Part 63), DDDDD: National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters Title V (Part 70) Major Source Project Description Compass has requested a change to its current AO DAQE-AN109170044-23. The current salt harvesting throughput limit is redundant with the two (2) limits on processed salt products. Although the potential exists for additional salt harvesting, the material contains residual magnesium chloride (a dust suppressant) and maintains a high moisture content (further limiting or eliminating fugitive dust emissions). Condition II.B.2.a(A), which limits the total salt harvest amount, is unnecessary and is being removed. As part of this project, Compass also wishes to include a previously submitted project. This other project involves the inclusion of equipment and processes from Fortress North America, which was recently acquired by Compass. Harvested magnesium chloride from the existing Compass processes and converts it to a fire retardant. The magnesium chloride will be loaded into two (2) sealed tanks where it will be blended with additives. The additives are introduced by a vacuum pump, which pulls the powdered additives from the bottom of the hoppers using a negative pressure zone and deposits them into the bottom of the mixing tanks. Emissions from the two (2) hoppers are processed by a baghouse. Inside the tanks, the magnesium chloride is mixed with the additives. The viscous fluid will then be transported to a holding tank to await loadout. 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) Ammonia 0 6.02 CO2 Equivalent 0 225583.00 Carbon Monoxide 0 161.36 Nitrogen Oxides 0 38.66 Particulate Matter - PM10 0 285.60 Particulate Matter - PM10 (Fugitives) 0 79.76 Particulate Matter - PM2.5 0 131.75 Particulate Matter - PM2.5 (Fugitives) 0 9.71 Sulfur Dioxide 0 2.88 Volatile Organic Compounds 0 51.47 Volatile Organic Compounds - Fugitive 0 10.87 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr) Benzene (Including Benzene From Gasoline) (CAS #71432) 0 8 Cadmium (CAS #7440439) 0 4 Chlorine (CAS #7782505) 0 6132 Chloroform (CAS #67663) 0 43832 Chromium Compounds (CAS #CMJ500) 0 5 DAQE-AN109170049-24 Page 5 Formaldehyde (CAS #50000) 0 4313 Generic HAPs (CAS #GHAPS) 0 4 Hexane (CAS #110543) 0 6774 Hydrochloric Acid (Hydrogen Chloride) (CAS #7647010) 0 58867 Manganese Compounds (CAS #MAR500) 0 1 Methanol (CAS #67561) 0 6432 Naphthalene (CAS #91203) 0 2 Nickel Compounds (CAS #NDB000) 0 8 Toluene (CAS #108883) 0 13 Change (TPY) Total (TPY) Total HAPs 0 63.20 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 five-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director every 18 months from the date of this AO until construction is completed to demonstrate reasonable construction progress. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18] DAQE-AN109170049-24 Page 6 SECTION II: PERMITTED EQUIPMENT II.A THE APPROVED EQUIPMENT II.A.1 Production Plant Salt, Magnesium Chloride, and SOP II.A.2 Dryer 501 (D-501) Location: Salt Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by wet scrubber (AH-513) II.A.3 Dryer 1400 (D-1400) Location: SOP Plant Capacity: 51 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-1400) II.A.4 Dryer 1545 (D-1545) Location: SOP Plant - Compaction Capacity: 30 MMBtu/hr Fuel Type: Natural Gas Controlled by baghouse (BH-008) II.A.5 Wet Scrubber (AH-500) Location: Salt Plant Controls: Coolers, Bins and Hoppers, Conveyors, Crushers and Grinders, Feeders and Baggers, Mixers, Presses, and Rail Loading Mechanically Aided II.A.6 Baghouse (BH-501) Location: Salt Plant Controls: Fluidized bed cooler II.A.7 Wet Scrubber (AH-502) Location: Salt Plant Controls: Bins and Hoppers, Conveyors, Elevators, and Screens Mechanically Aided II.A.8 Baghouse (BH-502) Location: Salt Plant Controls: Bins and Hoppers, Elevators, and truck loading operations II.A.9 Baghouse (BH-503) Location: Salt Plant Controls: Material handling in the salt special products system II.A.10 Baghouse (BH-505) Location: Salt Plant Controls: Material handling in the salt packing area Equipped with HEPA Filter and vented indoors. DAQE-AN109170049-24 Page 7 II.A.11 Wet Scrubber with Cyclone (AH-513) Location: Salt Plant Controls: Salt Dryer (D-501) Mechanically Aided with Variable Frequency Drive (VFD) II.A.12 Venturi Wet Scrubber (AH-692) Location: Magnesium Chloride Plant Controls: Bins and Hoppers, Conveyors, Crushers and Grinders, Elevators, Feeders and Baggers, and Screens II.A.13 Baghouse (BH-001) Location: SOP Plant Controls: Bins and Hoppers, Screens, and Truck and Rail Loading Operations II.A.14 Baghouse (BH-002) Location: SOP Plant Controls: Bins and Hoppers, Conveyors, Elevators, and Screens II.A.15 Baghouse with Cyclone (BH-008) Location: SOP Plant Controls: Conveyor and SOP Compaction Dryer (D-1545) II.A.16 Baghouse with Cyclones (BH-1400) Location: SOP Plant Controls: Bins and Hoppers, Conveyors, Elevators, Screens, and SOP Dryer (D-1400) II.A.17 Bin Vent Filter (BH-1505) Location: SOP Plant Controls: Bins and Hoppers II.A.18 Baghouse (BH-1516) Location: SOP Plant Controls: Bins and Hoppers, Conveyors, Elevators, and Screens II.A.19 Wet Scrubber (AH-1555) Location: SOP Plant Controls: Bins and Hoppers, Conveyors, and Elevators Mechanically Aided with VFD II.A.20 Two (2) Boilers Capacity: 108.11 MMBtu/hr (each) Fuel Type: Natural Gas Installed Controls: Ultra-Low NOx Burner and Flue Gas Re-circulation Monitoring: Continuous Emission Monitoring System (CEMS) NSPS Applicability: Subpart Db II.A.21 Submerged Combustion Water Heater (SC-450) Location: SOP Plant Capacity: 30 MMBtu/hr Fuel: Natural Gas II.A.22 Submerged Combustion Water Heater (SC-460) Location: SOP Plant Capacity: 60 MMBtu/hr Fuel: Natural Gas DAQE-AN109170049-24 Page 8 II.A.23 Four (4) Magnesium Chloride Evaporators Two (2) operating units with one (1) primary and one (1) secondary evaporator each Location: Magnesium Chloride Plant II.A.24 Two (2) Cooling Towers (CT-003 and CT-004) Location: SOP Plant Re-circulation rate: 1500 gpm II.A.25 Cooling Tower (CT-639) Location: Magnesium Chloride Plant Re-circulation rate: 212 gpm II.A.26 Abrasive Blasting Capacity: 50 lb/hr II.A.27 Emergency Generator Engine (GN-100) Rating: 610 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.28 Emergency Generator Engines (GN-200 and GN-300) Quantity: Two (2) Rating: 41 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.29 Emergency Generator Engine (GN-1200) Rating: 402 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.30 Emergency Generator Engine (GN-1300) Rating: 161 hp Fuel: Diesel NSPS Applicability: Subpart IIII MACT Applicability: Subpart ZZZZ II.A.31 Emergency Generator Engine (GN-007) Rating: 235 hp Fuel: Diesel MACT Applicability: Subpart ZZZZ II.A.32 Emergency Generator Engine (GN-500) Rating: less than 100 hp Fuel: Propane NSPS Applicability: Subpart JJJJ MACT Applicability: Subpart ZZZZ II.A.33 Cooling Belt Fan (AH-696) Location: Magnesium Chloride Plant DAQE-AN109170049-24 Page 9 II.A.34 Fuel Tanks Fuel: Gasoline Quantity: One (1) Capacity: 6,000 gallons Fuel: Diesel Quantity: Two (2) Capacity: 10,000 gallons (each) II.A.35 SOP Silo Building Various Storage Silos Quantity: 11 Location: SOP Plant Controls: Fifteen dust torit cartridge filters; internally vented II.A.36 Dome Silos (12, 13, and 14) Location: SOP Plant II.A.37 Fully Enclosed Conveyors Location: SOP Plant ID's: OC014, OC015, OC1404, OC1405, OC1406, OC1501, OC1550A, OC283, OC284, OC294, OC298, OF012, and OF013 II.A.38 Partially Enclosed Conveyors Location: SOP Plant ID: OC276, OC277/214, OC279, OC280, and OC281 Location: Salt Plant ID: OC503 II.A.39 Various Conveyors and Bucket Elevators Location: Facility-Wide II.A.40 Various Bins and Hoppers Location: Facility-Wide II.A.41 Various Screens, Grinders, and Crushers II.A.42 Fortress Equipment Two (2) hoppers controlled by the baghouse Two (2) mixing tanks Two (2) holding tanks SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS II.B.1 Site Wide Requirements II.B.1.a Unless otherwise specified in this AO, visible emissions from any stationary and fugitive emission source shall not exceed 10 percent opacity. This includes, but is not limited to, all wet scrubbers and all baghouses. [R307-401-8] DAQE-AN109170049-24 Page 10 II.B.1.a.1 Monitoring: A. Except as noted in B through D below, a visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. For baghouses subject to 40 CFR Part 64, the owner/operator shall designate one (1) of the weekly opacity surveys to demonstrate compliance with the monthly survey requirement in this condition. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance 40 CFR 51 Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. B. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9. However, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. C. For emission units located within a building, the requirements of paragraph A apply to each affected emission unit located within a building or for the building itself. If visible emissions from a building are monitored, the requirements of paragraph A apply to each side, roof, and vent of the building. The affected emission unit(s) shall be operating when monitoring is performed on the unit located within a building or on the building itself. D. The owner/operator is not required to perform monthly surveys on natural gas combustion sources, cooling towers, magnesium chloride evaporators, and petroleum storage tanks. [R307-401-8] II.B.1.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time of visual emissions observed, emission point location and description, time and date of the opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, and/or 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.2 Salt Plant Requirements II.B.2.a The following production limits shall not be exceeded: A. 700,000 tons of road salt produced per rolling 12-month period. B. 960,000 tons of dried salt produced per rolling 12-month period. [R307-401-8] DAQE-AN109170049-24 Page 11 II.B.2.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.2.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations. B. All conveyor drop points. C. All conveyor transfer points. D. All bin vents. E. All storage piles. F. All partially enclosed conveyance systems. G. All material handling operations, which include the following: bins and hoppers, screens, crushers, grinders, and presses. [R307-401-8] II.B.2.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance with 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9. However, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.2.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, and/or 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] DAQE-AN109170049-24 Page 12 II.B.2.c Emissions to the atmosphere from the baghouses and wet scrubbers located at the Salt Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations: Compliance with the limits shall be based on an average of three (3) test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-500 1.61 1.61 0.01 AH-502 1.12 0.74 0.04 AH-513 1.49 1.49 0.0114 BH-501 1.30 1.15 0.01 BH-502 0.20 0.06 0.0053 BH-503 1.54 0.23 0.01 [R307-401-8] II.B.2.c.1 Testing Frequency: Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.2.c.2 Notification: The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.2.c.3 Sample Location: The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA-approved methods acceptable to the Director. Occupational Safety and Health Administration (OSHA) or Mine Safety and Health Administration (MSHA)-approved access shall be provided to the test location. [R307-165] II.B.2.c.4 Calculations: To determine mass emission rates (lb/hr, etc.), the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] DAQE-AN109170049-24 Page 13 II.B.2.c.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.2.c.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2, or other EPA-approved testing methods acceptable to the Director. [R307-165] II.B.2.c.7 PM10/PM2.5: For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA-approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as: x-ray diffraction, scanning electron microscopy, or electron microprobe analysis, may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.2.c.8 Results: The results of stack testing shall be submitted to the Director within 60 days of the completion of the testing. Reports shall clearly identify results as compared to permit limits and indicate compliance status. [R307-165] II.B.2.d The owner/operator shall vent Baghouse 505 (BH-505) indoors at all times during operation. [R307-401-8] DAQE-AN109170049-24 Page 14 II.B.3 Magnesium Chloride Plant Requirements II.B.3.a The following production limits shall not be exceeded: A. 1,000,000 tons of magnesium chloride liquid produced from ponds per rolling 12-month period. B. 70,080 tons of magnesium chloride flake produced per rolling 12-month period. [R307-401-8] II.B.3.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by examination of sales, billing records, or operation logs. The records of production shall be kept on a daily basis. [R307-401-8] II.B.3.b Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loading operations. B. All conveyor drop points. C. All conveyor transfer points. D. All storage piles. E. All partially enclosed conveyance systems. F. All material handling operations, which include the following: bins and hoppers, screens, crushers, grinders, and presses. [R307-401-8] II.B.3.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance with 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9. However, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] DAQE-AN109170049-24 Page 15 II.B.3.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, and/or 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.3.c With the exception of periods of startup, shutdown and maintenance, the owner/operator shall only operate one (1) set of two (2) evaporators at any one (1) time. [R307-401-8] II.B.3.d The owner/operator shall not exceed 8,760 hours of operation combined from the two (2) sets of evaporators per rolling 12-month period. Periods of startup, steady-state, and shutdown are to be included in this limit. Steam cleaning operations, where no chlorine is being added to the evaporators, are not considered part of this operational limit. [R307-401-8] II.B.3.d.1 The owner/operator shall demonstrate compliance with the rolling 12-month total by tracking the hours of operation for each set of evaporators. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of the hours of operation shall be kept for all periods when the plant is in operation. The records of operation shall be kept on a daily basis and include startup, steady-state, and shutdown operational times. [R307-401-8] II.B.3.e Emissions to the atmosphere from the wet scrubber located at the Magnesium Chloride Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations. Compliance with the limits shall be based on an average of 3 test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-692 0.15 0.12 0.01 Combined emissions to the atmosphere from each set of two (2) Magnesium Chloride Plant Evaporators for VOC and HCl shall not exceed the following rates. Compliance with the limit shall be based on an average of three (3) test runs: Emission Point VOC Emission Rate HCl Emission Rate (lb/hr) (lb/hr) MgCl2 Evaporators 6.18 6.40 [R307-401-8] II.B.3.e.1 Testing Frequency: Compliance testing for AH-692 shall be performed at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. Compliance testing for both VOC and HCl shall be performed at least once every three (3) years for each train of the Magnesium Chloride Evaporators. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] DAQE-AN109170049-24 Page 16 II.B.3.e.2 Notification: The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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, stacks to be tested, and procedures to be used. A pretest conference shall be held, if directed by the Director. [R307-165] II.B.3.e.3 Sample Location: The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA-approved methods acceptable to 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. [R307-165] II.B.3.e.4 Calculations: To determine mass emission rates (lb/hr, etc.), the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.3.e.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days) for the AH-692 scrubber or the previous three (3) years for the magnesium chloride evaporators. B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.3.e.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing methods acceptable to the Director. [R307-165] DAQE-AN109170049-24 Page 17 II.B.3.e.7 PM10/PM2.5: For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA-approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as x-ray diffraction, scanning electron microscopy, or electron microprobe analysis, may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.3.e.8 Volatile Organic Compounds (VOCs): VOC emissions shall be determined using 40 CFR 60, App. A, Method 25A, using a flame ionization analyzer equipped with a methane separator. If such an analyzer is unavailable, VOC emissions shall be determined simultaneously using two (2) analyzers, with one (2) configured to read only methane. The difference between the total organic detector and the methane detector shall constitute the VOC measurement. [R307-165] II.B.3.e.9 HCl: HCl emissions shall be determined using 40 CFR 60, Appendix A, Method 26, or 26A, or other EPA-approved testing method, acceptable to the Director. [R307-401-8] II.B.3.e.10 Results: The results of stack testing shall be submitted to the Director within 60 days of the completion of the testing. Reports shall clearly identify results as compared to permit limits and indicate compliance status. [R307-165] II.B.4 SOP Plant Requirements II.B.4.a The following production and operation limits shall not be exceeded: A. 5,300,000 tons of potash harvested from ponds per rolling 12-month period. B. 1,680,000 tons of SOP produced per rolling 12-month period. C. 432,000 tons of KCl used per rolling 12-month period. [R307-401-8] II.B.4.a.1 The owner/operator shall demonstrate compliance with the rolling 12-month total for each production limit. The owner/operator shall calculate a new 12-month total by the 20th day of each month using data from the previous 12 months. Records of production shall be kept for all periods when the plant is in operation. Production records shall be determined by operation logs. The records of production shall be kept on a daily basis. [R307-401-8] DAQE-AN109170049-24 Page 18 II.B.4.b Visible emissions from all outdoor storage silos shall not exceed 10% opacity. Egress points to the dome silos shall remain closed at all times, except when mobile equipment is actively entering or exiting the silo during loading or unloading operations. [R307-401-8] II.B.4.b.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while loading or unloading operations are occurring at the silo. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. 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, or other EPA-approved testing method, as acceptable to the Director. The opacity determination shall be performed while loading or unloading operations are occurring at the silo. [R307-401-8] II.B.4.b.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. Documentation of maintenance performed on the silos to ensure they operate as fully enclosed structures when egress points are closed shall also be kept in the log. [R307-401-8] II.B.4.c Visible emissions from all outdoor fully enclosed conveyance systems shall not exceed 5% opacity. At all times, the owner/operator shall operate and maintain each affected emission unit as a fully enclosed conveyance system. Each fully enclosed conveyance system shall be fully enclosed on all sides, top, and bottom. All fully enclosed conveyance systems shall be clearly labeled on each conveyor such that an inspector/operator can safely identify equipment at any time. [R307-401-8] DAQE-AN109170049-24 Page 19 II.B.4.c.1 Monitoring: The owner/operator shall conduct a Method 22 performance test or other EPA-approved testing method, as acceptable to the Director, according to the following requirements for each affected emission unit: A. Conduct a weekly 10-minute visible emissions test of each affected emission unit in accordance with Method 22 of 40 CFR 60 Appendix A, or other EPA-approved testing method, as acceptable to the Director. The performance test shall be conducted while the unit is in operation. B. If any visible emissions are observed from an emission unit, the owner/operator shall inspect the affected emission unit to determine the cause of visible emissions and initiate corrective action within one (1) hour of the initial survey. C. If no visible emissions are observed during four (4) consecutive weekly tests, the owner/operator may decrease the frequency of the visible emissions test required in paragraph (A) from weekly to monthly. If visible emissions are observed during any monthly test, the owner/operator shall resume the weekly visible emissions test required in paragraph (A) and maintain that schedule until no visible emissions are observed in four (4) consecutive weekly tests. [R307-401-8] II.B.4.c.2 Recordkeeping: The owner/operator shall keep a log of the visible emissions tests that contains the following information: time and date of the test, emission point location and description, time of visible emissions, if observed, results of inspections, time and date of corrective actions initiated, and corrective actions taken. All data required by 40 CFR 60, Appendix A, Method 22, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.d Visible emissions from the following outdoor operations and equipment shall not exceed 10% opacity: A. All loadout operations. B. All storage piles. C. All material handling operations, which include the following: bins and hoppers, screens, crushers, grinders, and presses. D. All partially enclosed conveyance systems. E. All conveyor drop points. F. All conveyor transfer points. G. All bin vents. [R307-401-8] DAQE-AN109170049-24 Page 20 II.B.4.d.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a monthly basis while the unit is operating. The visual opacity survey shall be performed by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than condensed water vapor 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, or other EPA-approved testing method, as acceptable to the Director, for point sources, and in accordance with 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, for fugitive sources. For intermittent sources, opacity observations shall be performed on a monthly basis while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9. However, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. The number of observations and the time period shall be determined by the length of the intermittent source operation. [R307-401-8] II.B.4.d.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, and/or 40 CFR 51, Appendix M, Method 203A, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.4.e All partially enclosed conveyance systems shall be clearly labeled on each conveyor so that an inspector/operator can safely identify equipment at any time. [R307-401-8] II.B.4.f Emissions to the atmosphere from the baghouses and wet scrubbers located at the SOP Plant for PM10 and PM2.5 shall not exceed the following rates and concentrations: Compliance with the limits shall be based on an average of three (3) test runs and shall include both filterable and condensable emissions (standardized at 68 °F, 29.92 in Hg): Emission Point PM10 Emission Rate PM2.5 Emission Rate PM2.5 Concentration (lb/hr) (lb/hr) (grains/dscf) AH-1555 2.61 0.39 0.01 BH-001 0.37 0.37 0.01 BH-002 0.65 0.47 0.01 BH-008 4.25 4.25 0.01 BH-1400 2.78 2.78 0.02 BH-1516 1.46 0.22 0.01 [R307-401-8] II.B.4.f.1 Testing Frequency: Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] DAQE-AN109170049-24 Page 21 II.B.4.f.2 Notification: The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.4.f.3 Sample Location: The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA-approved methods acceptable to 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. [R307-165] II.B.4.f.4 Calculations: To determine mass emission rates (lb/hr, etc.,) the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.4.f.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.4.f.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing methods acceptable to the Director. [R307-165] DAQE-AN109170049-24 Page 22 II.B.4.f.7 PM10/PM2.5: For stacks in which no liquid drops are present, the following methods shall be used: 40 CFR 51, Appendix M, Methods 201a, or other EPA-approved testing method, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. 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, 5i, or other EPA-approved testing methods as acceptable to the Director. When demonstrating compliance with the PM10 and PM2.5 limits above, all filterable particulate emissions captured using Method 5 shall be considered PM2.5, resulting in PM10 emissions equal to that of PM2.5. Alternatively, appropriate particle sizing analytical methods, such as x-ray diffraction, scanning electron microscopy, or electron microprobe analysis, may be used to determine particle sizing, as acceptable to the Director. The back half condensable particulate emissions shall also be tested using 40 CFR 51, Appendix M Method 202, or other EPA-approved testing method as acceptable to the Director. [R307-165] II.B.4.f.8 Results: 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] II.B.5 Boiler Requirements II.B.5.a NOx emissions to the atmosphere from each of the two (2) boilers on site shall not exceed the following rates and concentrations: Rate (lbs/hr) Concentration (ppm) 1.30 9.0 Compliance with the limit shall be based on an average of three (3) test runs. [R307-401-8] II.B.5.a.1 Testing Frequency: Compliance testing shall be done on each emission source at least once every calendar year and in the same calendar quarter in which the most recent stack test was performed. The Director may require testing at any time. I f an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-401-8] II.B.5.a.2 Notification: The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] II.B.5.a.3 Sample Location: The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA-approved methods acceptable to 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. [R307-165] DAQE-AN109170049-24 Page 23 II.B.5.a.4 Calculations: To determine mass emission rates (lb/hr, etc.), the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.5.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous 12 months (365 days). B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.5.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2 or other EPA-approved testing methods acceptable to the Director. [R307-165] II.B.5.a.7 Nitrogen Oxides: NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.5.a.8 Results: 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] II.B.6 Dryer Requirements II.B.6.a Emissions to the atmosphere from each of the three (3) dryers on site (D-501, D-1400, and D-1545) for NOx shall not exceed 20 ppm at 3% O2. Compliance with the limits shall be based on an average of three (3) test runs. [R307-401-8] II.B.6.a.1 Testing Frequency: Compliance testing shall be done on each emission source at least once every three (3) years. The Director may require testing at any time. If an existing source is modified, a compliance test is required on the modified emission point that has an emission rate limit. [R307-165] II.B.6.a.2 Notification: The Director shall be notified at least 30 days prior to conducting any required emission testing. A source test protocol shall be submitted to DAQ. 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. [R307-165] DAQE-AN109170049-24 Page 24 II.B.6.a.3 Sample Location: The emission point shall be designed to conform to the requirements of 40 CFR 60, Appendix A, Method 1, or other EPA-approved methods acceptable to 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. [R307-165] II.B.6.a.4 Calculations: To determine mass emission rates (lb/hr, etc.), the pollutant concentration as determined by the appropriate methods specified herein 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. [R307-165] II.B.6.a.5 Source Operation: The production rate during all compliance testing shall be no less than 90% of the permitted production rate. If the maximum permitted production rate has not been achieved at the time of the test, the following procedure shall be followed: A. Testing shall be at no less than 90% of the production rate achieved in the previous three (3) years. B. 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. C. 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 permitted production rate is achieved. [R307-165] II.B.6.a.6 Volumetric Flow Rate: 40 CFR 60, Appendix A, Method 2, or other EPA-approved testing methods acceptable to the Director. [R307-165] II.B.6.a.7 Nitrogen Oxides: NOx emissions shall be determined using 40 CFR 60 Appendix A, Method 7E, or other EPA-approved testing method, acceptable to the Director. [R307-165] II.B.6.a.8 Results: 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] II.B.7 Baghouse and Wet Scrubber Requirements II.B.7.a Each baghouse shall operate within the static pressure range recommended by the manufacturer for normal operations. The static pressure range shall be clearly labeled on each baghouse such that an inspector/operator can safely read the range at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across each of the baghouses. The pressure gauges shall be located such that an inspector/operator can safely read the indicator at any time. For baghouses that monitor pressure drop to demonstrate compliance with 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] DAQE-AN109170049-24 Page 25 II.B.7.a.1 Pressure drop readings from each baghouse shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop for the unit; C. Daily pressure drop readings; and D. Date of bag replacements. [R307-401-8] II.B.7.a.2 The pressure gauges in each baghouse shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. [R307-401-8] II.B.7.b Each wet scrubber shall operate within the static pressure range and liquid flow rate recommended by the manufacturer for normal operations. These parameters shall be clearly labeled on each scrubber such that an inspector/operator can safely read the parameters at any time. Manometer or magnehelic pressure gauges shall be installed to measure the differential pressure across the wet scrubber. Flow rate meters shall be installed to measure the liquid flow rate in the scrubber. The pressure gauge and flow rate meters shall be located such that an inspector/operator can safely read the indicators at any time. For scrubbers that are subject to 40 CFR Part 64, the requirements in this condition shall not apply. [R307-401-8] II.B.7.b.1 Pressure drop and liquid flow rate readings from each wet scrubber shall be recorded at least once during each day of operation. Records documenting these inspections shall be kept in a log and shall include the following: A. Unit identification; B. Manufacturer recommended pressure drop and liquid flow rate for the unit; C. Daily pressure drop readings; and D. Daily liquid flow rate readings. [R307-401-8] II.B.7.b.2 The gauges and meters on each wet scrubber shall be calibrated in accordance with the manufacturer's instructions or recommendations at least once every 12 months. Documentation of calibrations shall be maintained for all periods the plant is in operation. For scrubbers that monitor liquid flow rate to demonstrate compliance with 40 CFR Part 64, the liquid flow rate requirements in this condition shall not apply. All other requirements in this condition remain applicable. [R307-401-8] DAQE-AN109170049-24 Page 26 II.B.8 Engine Requirements II.B.8.a Visible emissions from diesel-fired emergency generator engines shall not exceed 20% opacity. [R307-401-8] II.B.8.a.1 Monitoring: A visual opacity survey of each affected emission unit shall be performed on a quarterly basis while the unit is operating by an individual trained on the observation procedures of 40 CFR 60, Appendix A, Method 9. If visible emissions other than steam are observed from an emission unit, a 6-minute opacity determination of that emission unit shall be performed by a certified observer within one (1) hour of the initial survey. The opacity determination shall be performed while the unit is operating in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. If the generator(s) continue to operate on consecutive days following the initial observation, a 6-minute opacity determination shall be performed by a certified observer on a daily basis while the unit is operating, in accordance with 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director. [R307-401-8] II.B.8.a.2 Recordkeeping: The owner/operator shall keep a log of the visual opacity survey(s) containing the following information: date and time visual emissions observed, emission point location and description, time and date of opacity test, and percent opacity. If an opacity determination is performed, a notation of the determination will be made in the log. All data required by 40 CFR 60, Appendix A, Method 9, or other EPA-approved testing method, as acceptable to the Director, shall be maintained. [R307-401-8] II.B.8.b Visible emissions from propane-fired emergency generator engines shall not exceed 10% opacity. [R307-401-8] II.B.8.b.1 Monitoring: In lieu of monitoring via visible emission observations, records shall be kept for any period that a fuel other than propane is used in the affected emission unit. [R307-401-8] II.B.8.b.2 Recordkeeping: Records shall be kept in a log that is kept in a readily accessible location onsite. [R307-401-8] II.B.8.c The owner/operator shall use the emergency generator engines for electricity-producing operations only during periods when electric power from the public utilities is interrupted. [R307-401-8] II.B.8.d The owner/operator shall track hours of operation for each emergency generator engine as required to comply with all applicable federal subparts. [40 CFR 60 Subpart IIII, 40 CFR 60 Subpart JJJJ, 40 CFR 63 Subpart ZZZZ, R307-401-8] II.B.9 Fuel Requirements II.B.9.a The owner/operator shall only use diesel fuel (fuel oil #1, #2, or diesel fuel oil additives) in the diesel-fired engines on site. All diesel burned shall contain no more than 15 ppm sulfur. [R307-401-8] II.B.9.a.1 To demonstrate compliance with the diesel fuel requirements for any diesel fuel purchased, the owner/operator shall keep and maintain fuel purchase invoices. The fuel purchase invoices shall indicate that the diesel fuel meets the sulfur requirements, or the owner/operator shall obtain certification of sulfur content from the fuel supplier. [R307-401-8] II.B.9.b The owner/operator shall only use propane as fuel in the propane-fired engines on site. [R307-401-8] DAQE-AN109170049-24 Page 27 II.B.9.c The owner/operator shall use only pipeline-quality natural gas as a fuel source for all boilers and burners. [R307-401-8] II.B.10 Haul Roads and Fugitive Dust Requirements II.B.10.a The owner/operator shall comply with all applicable requirements of R307-309 for PM10 and PM2.5 non-attainment areas for fugitive emissions and fugitive dust sources. At least once every three (3) years, the fugitive dust control plan shall be reviewed and evaluated. If site modifications that result in emission changes have been made, an updated fugitive dust control plan shall be submitted as required by R307-309-6(3). [R307-309, R307-401-8] II.B.10.b Visible emissions in disturbed, operational areas, and unpaved haul roads from haul trucks and other mobile equipment shall not exceed 20% opacity at any point. [R307-401-8] II.B.10.b.1 In lieu of monitoring via visible emissions observations, adherence to the most recently approved fugitive dust control plan shall be monitored to demonstrate that the opacity limit is not exceeded and that appropriate measures are being implemented to control fugitive dust. [R307-309, R307-401-8] II.B.10.c Vehicle speeds shall be limited to 30 miles per hour on haul roads and 15 miles per hour in off-road areas. The vehicle speed limits shall be clearly visible and posted, at a minimum, on site at the entrance to off-road areas and the beginning of the haul road. [R307-401-8] II.B.10.d The owner/operator shall spray all unpaved haul roads with water, brine, or a chemical suppressant to control fugitive dust and maintain the opacity limit listed in this AO. [R307-401-8] II.B.10.d.1 Records of water or chemical treatment shall be kept for all periods when the plant is in operation. The owner/operator may stop applying suppressants when the temperature is below freezing. The records shall include the following: A. Date. B. Location of treatment. C. Rainfall received, if any, and approximate amount. D. Records of temperature if the temperature is below freezing. [R307-401-8] PERMIT HISTORY This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN109170044-23 dated March 2, 2023 Is Derived from NOI dated February 12, 2024 IS Derived from NOI dated February 20, 2024 DAQE-AN109170049-24 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