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| EPA/AR | RIN: 2060-AN85 | Publication ID: Fall 2006 |
| Title: ●Risk and Technology Review Phase II | |
| Abstract: EPA is required to evaluate the risk remaining at facilities 8 years after they are required to comply with MACT air-toxic emission standards according to Section 112 (f)(2) of the Clean Air Act (CAA). EPA is also required to review and revise the MACT standards if needed every 8 years with regard to practices, processes and control technologies according to Section 112(d)(6) of the CAA. EPA will combine the remaining MACT source categories requiring residual risk and technology reviews into several groups to enable us to more closely meet statutory dates, raise and resolve programmatic issues in one action, minimize resources by using available data and focusing on high risk sources, and provide consistent review and analysis. We will use available data including emissions from the most recent 2002 national emission inventory (NEI) and augment it with available site-specific data. We will focus this action on 33 MACT standards with compliance dates of 2002 and earlier and will model each MACT source category to obtain inhalation risks, including cancer risk and incidence, population cancer risk, and non-cancer effects (chronic and acute). We will follow the Benzene Policy to identify the source categories as low risk, acceptable risk, or unacceptable risk. We then plan to publish the emissions data and risk results in an ANPRM before the end of the 2006 calendar year and solicit public comments and corrections, including better source data. We will then remodel the categories based on the updated data. EPA will then set aside low-risk source categories and persistent bio-accumulative (PB) source categories. The PB source categories require multi-pathway analysis and will be addressed on a slower track. EPA will then focus on the remaining categories, evaluating the effectiveness and cost of additional risk reduction options and making acceptability and ample-margin-of-safety determinations. We intend to propose an NPRM in the spring of 2007, address public comments, and promulgate the final action in spring of 2008 on the first group of MACT categories. Where additional controls are identified, standards would be developed that include technology, work practice, or performance standards as amendments to the existing MACT standards. For source categories where additional standards are needed to provide an ample margin of safety, a low risk exemption would be provided and EPA would use an analysis to identify low risk source characteristics that would exempt a portion of the source category from additional requirements. Site-specific risk assessments could also be used to show low risk. A total facility low risk determination (TFLRD) will be presented as a voluntary approach where a facility can perform a site specific risk assessment to determine if it is low risk. Low risk facilities would satisfy all of their residual risk requirements by demonstrating compliance with the TFLRD approach. The 33 MACT source categories are listed below. 1. Chromium Electroplating 2. Polymers & Resins II 3. Secondary Lead Smelters 4. Petroleum Refineries 5. Aerospace 6. Marine Vessels 7. Wood Furniture 8. Shipbuilding 9. Printing & Publishing 10. Off-site Waste Treatment 11. Polymers & Resins I 12. Polymers & Resins IV 13. Primary Aluminum 14. Pulp & Paper MACT I and III 15. Pharmaceuticals 16. Flexible Polyurethane Foam 17. Ferroalloys 18. Polyether Polyols 19. Mineral Wool 20. Primary Lead Smelting 21. Phosphoric Acid 22. Phosphate Fertilizers 23. Wool Fiberglass 24. Portland Cement 25. Oil & Natural Gas 26. Natural Gas Transmission 27. Steel Pickling 28. GMACT I Acetal Resins 29. GMACT II Acrylic/Modacrylic fibers 30. GMACT III Hydrogen Fluoride 31. GMACT IV Polycarbonates 32. POTW 33. Secondary Aluminum | |
| Agency: Environmental Protection Agency(EPA) | Priority: Other Significant |
| RIN Status: First time published in the Unified Agenda | Agenda Stage of Rulemaking: Prerule Stage |
| Major: No | Unfunded Mandates: No |
| CFR Citation: Not Yet Determined (To search for a specific CFR, visit the Code of Federal Regulations.) | |
| Legal Authority: CAA Sections 112(f)(2), 112(d)(6) | |
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Legal Deadline:
None |
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Timetable:
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| Additional Information: SAN No. 5093; | |
| Regulatory Flexibility Analysis Required: No | Government Levels Affected: None |
| Small Entities Affected: No | Federalism: No |
| Included in the Regulatory Plan: No | |
| Sectors Affected: 3364 Aerospace Product and Parts Manufacturing; 3313 Alumina and Aluminum Production and Processing; 32731 Cement Manufacturing; 3341 Computer and Peripheral Equipment Manufacturing; 32411 Petroleum Refineries; 331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum); 22132 Sewage Treatment Facilities | |
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Agency Contact: Paula Hirtz Environmental Protection Agency Air and Radiation 109 T.W. Alexander Drive, Mail Code E143-01, Research Triangle Park, NC 27711 Phone:919 541-2618 Email: hirtz.paula@epa.gov Ken Hustvedt Environmental Protection Agency Air and Radiation E143-01, Research Triangle Park, NC 27711 Phone:919 541-5395 Fax:919 685-3200 Email: hustvedt.ken@epamail.epa.gov |
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