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ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 60 and 241 [EPA – HQ – OAR – 2003 - 0119 and EPA - HQ - RCRA 2008 - 0329; FRL - ] RIN 2060 - A R15 and 2050 - AG44 Commercial and Industrial Solid Waste Incineration Units: Reconsideration and Final Amendments; Non - Hazardous Secondary Materials That Are Solid Waste: Final Rule
AGENCY : Environmental Protection Agency. ACTION: Final rule; notice of final action on reconsideration.
SUMMARY: This action sets forth the EPA’s final decision on the issues for which it granted reconsideration in December 2011, which pertain to certain aspects of the March 21, 2011, final rule titled “Standards of Performance for New Stationary Sources and Emissions Guidelines for Existing Sources: Commercial and Industrial Solid Waste In cineration Units” (CISWI rule). This action also includes our final decision to deny the requests for reconsideration with respect to all issues raised in the petitions for reconsideration of the final c ommercial and industrial solid waste incineration rul e for which we did not grant reconsideration. Among other things, this final action establishes effective dates for the standards and makes technical corrections to the final rule to clarify definitions, references, applicability and compliance issues. In addition, the EPA is issuing final amendments to the regulations that werePage 2 of 5 27

codified by the Non

- Hazardous Secondary Materials rule (NHSM rule). Originally promulgated on March 21, 2011, the non

hazardous secondary materials rule provides the standards and
p rocedures for identifying whether non

- hazardous secondary materials are solid waste under the Resource Conservation and Recovery Act when used as fuels or ingredients in combustion units. The purpose of these amendments is to clarify several provisions in order to implement the non

- hazardous secondary materials rule as the agency originally intended. DATES: The stay of effectiveness for 40 CFR part 60, subparts CCCC and DDDD is lifted and the incorporation by reference of certain publications listed in that rule are effective as of [ INSERT THE DATE OF PUBLICATION OF THIS FINAL RULE IN THE FEDERAL REGISTER ]. The amendments in this rule to 40 CFR part 60, subpart DDDD, are effective as of [ INSERT THE DATE OF
PUBLICATION OF THIS FINAL RULE IN THE FEDERAL REGIST ER ] and to 40 CFR part 60, subpart CCCC, are effective as of [ INSERT THE
DATE SIX MONTHS AFTER PUBLICATION OF THIS FINAL RULE IN THE FEDERAL REGISTER ]. The amendments in this rule to 40 CFR part 241 are effective as of [INSERT THE DATE SIXTY DAYS AFTER
PUB LICATION OF THIS FINAL RULE IN THE FEDERAL REGISTER]. ADDRESSES: The EPA established a single docket under Docket ID Number EPA

- HQ

- OAR

- 2003

- 0119 for this action on the commercial and industrial solid waste incineration rule. The EPA alsoPage 3 of 527

established a sing le docket under Docket ID Number EPA

- HQ

- RCRA

2008

- 0329 for this action on the non

- hazardous secondary materials rule. All documents in the docket are listed in the http://www.regulations.gov index . Although listed in the index, some information is not publ icly available, e.g., confidential business information or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, will be publicly available only in hard copy. Publicly available docket materials are available either electronically in http://www.regulations.gov or in hard copy at the EPA Docket Center, EPA West Building, Room 3334, 1301 Constitution Ave., NW, Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday throug h Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566

- 1744 and the telephone number for the Docket Center is (202) 566

- 1742. FOR FURTHER INFORMATION CONTACT: For further information regarding the commercial and i ndustrial solid waste incineration reconsideration and final amendments, contact Ms. Toni Jones, Fuels and Incineration Group, Sector Policies and Programs Division (E143

– 05), Environmental Protection Agency, Research Triangle Park, North Carolina 27711; t elephone number: (919) 541

– 0316; fax number: (919) 541

– 3470; email address: jones.toni@epa.gov, or Ms. Amy Hambrick, Fuels and IncinerationPage 4 of 527

Group, Sector Policies and Programs Division (E143

– 05), Environmental Protection Agency, Research Triangle Park, Nor th Carolina 27711; telephone number: (919) 541

– 0964; fax number: (919) 541

– 3470; email address: hambrick.amy@epa.gov. For further information regarding the Non

- Hazardous Secondary Materials final rule, contact Mr. George Faison, Program Implementation and Information Division, Office of Resource Conservation and Recovery, 5303P, Environmental Protection Agency, Ariel Rios Building, 1200 Pennsylvania Avenue, NW, Washington, DC 20460

- 0002; telephone number : 703

- 305

- 7652; fax number: 703

- 308

- 0509; email addre ss : faison.george@epa.gov
. I. Organization of this Document The following outline is provided to aid in locating information in this preamble. I. Organization of this Document A. Supplementary Information B. Does this action apply to me? C. Where can I g et a copy of this document? D. Judicial Review E. Executive Summary II. CISWI Reconsideration and Final Rule A. Background Information 1. What is the history of the CISWI standards? 2. How is the definition of solid waste addressed in the final CISWI rule? 3. What is the relationship between this rule and other combustion rules? 4. What is the response to the vacatur of effective dates? B. Summary of This Final Rule 1. Subcategories of Affected Units and Emission Standards 2. Fuel Switching ProvisionsPage 5 of 527

3. De finitions of Cyclonic Burn Barrels, Burn

- off Ovens, Soil Treatment Units, Laboratory Analysis Units and Space Heaters 4. Affirmative Defense for Malfunction Events 5. Oxygen Correction Requirements and CO Monitoring Requirements 6. Full

- load Stack Test Req uirement for CO Coupled With Continuous O 2 Monitoring 7. Non

- detect Methodology Using Three Times the Detection Level 8. Definitions for Foundry Sand Thermal Reclamation Unit and Chemical Recovery Unit 9. Definition of Contained Gaseous Material 10. Parame tric Monitoring Provisions for Additional Control Device Types 11. Particulate Matter Continuous Monitoring Provisions for Large ERUs and Waste

- burning Kilns 12. Revised Definition of Waste

- burning Kiln 13. Revised Definition of Solid Waste 14. Compliance Dates 15. Revised New Source Performance Standards C. Summary of Significant Changes Since Proposal 1. Revision of the Subcategories 2. Revisions to the Monitoring Requirements 3. Oxygen Monitoring Requirements 4. Removal of the Definition of Homogeneous W aste 5. Non

- detect Methodology Using Three Times the Detection Level 6. Parametric Monitoring for Additional Control Device Types 7. Particulate Matter Continuous Monitoring Provisions for Large ERUs and Waste

- burning Kilns 8. Compliance Dates 9. Definition of Waste

- burning Kiln 10. Exemption for Other Solid Waste Incineration (OSWI) Units D. Technical Corrections and Clarifications E. Major Public Comments and Responses F. What other actions are we taking? G. What are the impacts associated with t he amendments? 1. What are the primary air impacts? 2. What are the water and solid waste impacts? 3. What are the energy impacts? 4. What are the secondary air impacts? 5. What are the cost and economic impacts? 6. What are the benefits? III. NHSM Final R evisions A. Statutory Authority B. NHSM Rule History C. Introduction

– Summary of Regulations Being Finalized 1. Revised Definitions a. Clean Cellulosic Biomass b. ContaminantsPage 6 of 527

c. Established Tire Collection Programs d. Resinated Wood 2. Contaminant Legi timacy Criterion for NHSM Used as Fuels 3. Categorical Non

- Waste Determinations for Specific NHSM Used as Fuels a. Scrap Tires b. Resinated Wood c. Coal Refuse d. Pulp and Paper Sludge 4. Rulemaking Petition Process for Other Categorical Non

- Waste Determinations (40 CFR 241.4(b)) 5. Streamlining of the 40 CFR 241.3(c) Non

- Waste Determination Petition Process 6. Revised Introductory Text for 40 CFR 241.3(a) D. Comments on the Proposed Rule and Rationale for Final Decisions 1. Revised Definitions a. C lean Cellulosic Biomass b. Contaminants c. Established Tire Collection Programs 2. Contaminant Legitimacy Criterion for NHSMs Used as Fuels a. General Comments on the Revised Contaminant Legitimacy Criterion b. Grouping of Contaminants c. Meaning of Design ed to Burn d. Contaminant Comparisons Allowed 3. Categorical Non

- Waste Determinations for Specific NHSM Used as Fuels a. Scrap Tires b. Resinated Wood 4. Rulemaking Petition Process for Other Categorical Non

- Waste Determinations (40 CFR 241.4(b)) 5. Materi als for Which Additional Information was Requested a. Pulp and Paper Sludge b. Coal Refuse c. Manure d. Other Materials for Which Additional Information was Not Requested 6. Streamlining of the 40 CFR 241.3(c) Non

- Waste Determination Petition Process 7. Revised Introductory Text for 40 CFR 241.3(a) E. Cost and Benefits of the Final Rule IV. Statutory and Executive Order Reviews A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563: Improving Regulation and Regulatory Review B. Paperwork Reduction ActPage 7 of 527

C. Regulatory Flexibility Act D. Unfunded Mandates Reform Act E. Executive Order 13132: Federalism F. Executive Order 13175: Consultation and Coordination with Indian Tribal Governments G. Executive Order 13045: Protection of Chi ldren from Environmental Health Risks and Safety Risks H. Executive Order 13211: Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use I. National Technology Transfer and Advancement Act J. Executive Order 12898: Fede ral Actions to Address Environmental Justice in Minority Populations and Low

- Income Populations K. Congressional Review Act

A. SUPPLEMENTARY INFORMATION: Acronyms and Abbreviations . The following acronyms and abbreviations are used in this document.
ACI activated carbon injection AF&PA American Forest & Paper Association ANPRM Advanced Notice of Proposed Rulemaking ANSI American National Standards Institute APA Administrative Procedure Act ARIPPA Anthracite Region Independent Power

Producers Association ASME American Society of Mechanical Engineers AST activated sludge treatment ASTM American Society for Testing and Materials ATCM Air Toxic Control Measure Btu British thermal unit CAA Clean Air Act CARB California Air Resources Board CBI Confidential Business Information CCA chromated copper arsenate Cd cadmium C&D construction & demolition CDX Central Data Exchange CFB circulating fluidized bed CEMS continuous emissions monitoring systemsPage 8 of 527

CERCLA Comprehensive Environmental Response, Co mpensation,

and Liability Act CFR Code of Federal Regulations CISWI Commercial and Industrial Solid Waste Incineration CO carbon monoxide CO 2 carbon dioxide Catalyst carbon monoxide oxidation catalyst Cl 2 chlorine gas CPMS continuous parametric monitor ing system CWA Clean Water Act D/F dioxin/furan dscm dry standard cubic meter DSW Definition of Solid Waste EG emission guidelines EJ Environmental Justice EOM extractable organic matter EPA U.S. Environmental Protection Agency ERT Electronic Reporting Tool ERU energy recovery unit ESP electrostatic precipitator FF f abric filters FR Federal Register HAP hazardous air pollutants HCl hydrogen chloride HF hydrogen fluoride Hg mercury HMI hospital, medical and infectious HMIWI Hospital, Medical and Infect ious Waste Incineration ICR Information Collection Request Lb pound LML lowest measured level Mg milligram Mn manganese MACT maximum achievable control technology MDL method detection level mg/dscm milligrams per dry standard cubic meter mmBtu/hr million British thermal units per hour MSW Municipal Solid Waste MW megawatts MWC Municipal Waste Combustor NAAQS National Ambient Air Quality StandardsPage 9 of 527

NAICS North American Industrial Classification System NCASI National Council on Air and Stream Improvement ND nondetect NESHAP National Emission Standards for Hazardous Air

Pollutants ng/dscm nanograms per dry standard cubic meter NHSM non - hazardous secondary material(s) NIST National Institute of Standards and Technology NO x nitrogen oxides NSPS New Source Per formance Standards NTTAA National Technology Transfer and Advancement Act OAQPS Office of Air Quality Planning and Standards OMB Office of Management and Budget OSWI Other Solid Waste Incineration OSWER Office of Solid Waste and Emergency Response O 2 Oxyg en PAH polycyclic aromatic hydrocarbons Pb lead PCBs polychlorinated biphenyls PCDD polychlorinated dibenzodioxins PCDF polychlorinated dibenzofurans PIC product of incomplete combustion PM particulate matter POM polycyclic organic matter ppm parts per million ppmv parts per million by volume ppmvd parts per million by dry volume PQL practical quantitation limit PRA Paper Reduction Act PS Performance Specification lb/MMBtu pound per million British thermal units RCRA Resource Conservation and Recovery Act RDL r eported detection level RFA Regulatory Flexibility Act RIA Regulatory Impact Analysis RIN Regulatory Information Number RTO regenerative thermal oxidizer RTR residual risk and technology review SBA Small Busine ss Administration SBREFA Small Business Regulatory Enforcement Fairness Act SISNOSE Significant Economic Impact on a Substantial NumberPage 10 of 527 of Small Entities SMCRA Surface Mining Control and Reclamation Act of 1977 SNCR selective noncatalytic reduction SO 2 su lfur dioxide SSI Sewage Sludge Incineration SSM startup, shutdown and malfunction SVOC Semi

- Volatile Organic Compound SWDA Solid Waste Disposal Act TBtu tera British thermal unit TEOM Tapered Element Oscillating Microbalance TEQ Toxic Equivalency The Court U.S. Court of Appeals for the District of Columbia

Circuit TMB Total Mass Basis TOX Total Organic Halogens tpy tons per year TSM Total Selected Metal TTN Technology Transfer Network UCL upper confidence limit ug/dscm micrograms per dry standard cubic me ter UMRA Unfunded Mandates Reform Act UL upper limit UPL upper prediction limit U.S.C. United States Code USGS United States Geological Survey VCS Voluntary Consensus Standards VOC volatile organic compound WWW Worldwide Web B. Does this action apply to me ? Categories and entities potentially affected by this action are those that operate CISWI units and those that generate potentially affected NHSMs. The NSPS and EG, hereinafter referred to as “standards,” for CISWI affect the following categories of sourc es: Category NAICS 1

Code Examples of Potentially Regulated EntitiesPage 11 of 527

Category NAICS 1

Code Examples of Potentially Regulated Entities

Any industrial or commercial facility using a solid waste incinerator 211, 212,

486 Oil and Gas Extraction, mining

(except oil and gas); Pipeline Transportation 221 Utilities 321, 322, 337 Wood Product Manufacturing, Paper

Manufacturing, Furniture and Related Product Manufacturing 325, 326 Chemical Manufacturing, Plastics and

Rubber Products Manufacturing 327 Nonmetallic Mineral Product

Manufacturing, 333, 336 Machinery Manufacturing,

Transportation Equipment Manufacturing 423, 44 Merchant Wholesalers, Durable Goods,

Retail Trade

Any facility or entity generating a non hazardous secondary material that may be burned for fuel or destruction 2 111 Crop Production

112 Animal Production 113 Forestry and Logging 115 Support Activities for Agriculture

and Forestry 211 Oil and Gas Extraction 212 Mining (except oil and gas) 221 Utilities 236 Construction of Buildings 311 Food Manufacturing 312 Beverage and Tobacco Product

Manufacturing 313 Textile Mills 316 Leather and Allied Product

Manufacturing 321 Wood Product Manufacturing 322 Paper Manufacturing 324 Petroleum and Coal Products

Manufacturing 325 Chemical Manufacturing 326 Plastics and Rubber Products

Manufacturing 327 NonMetallic Mineral Product

Manufacturing 331 Primary Metal ManufacturingPage 12 of 527

Category NAICS 1

Code Examples of Potentially Regulated Entities 332 Fabricated Metal Product

Manufacturing 333 Machinery Manufacturing 334 Computer and Electronic Product

Manufacturing 336 Transportation Equipment

Manufacturing 337 Furniture and Related Product

Manufacturing 339 Miscellaneous Manufacturing 423 Merchant Wholesalers, Durable Goods 424 Merchant Wholesalers, Nondurable

Goods
44

- 45 Retail Trade (all categories,

including non

- store retailers, vending and direct sellers) 486 Pipeline Transportation 493 Warehousing and Storage 511 Publishing Industries (except

internet) 531 Real Estate 541 Professional, Scientific and

Technical Services 611 Educational Services 622 Hospitals 623 Nursing and Residential Care

Facilities 624 Social Assistance 713930 Boating Clubs with Marinas 721 Accommodation 722 Food Services and Drinking Places 813 Religious, Grantmaking, Civic,

Professional and Similar Organizations 92 Public Administration
1 North American Industry Classification System. 2 Note that some of these NAICS may overlap with institutional facility types where incinerators are regulated by the Other Solid Waste Incinerators (OSWI) emission guidelines and NSPS.Page 13 of 527

This table is not intended to be exhaustive but rather provides a guide for readers regarding entities likely to be affected by the final action. To determine whether your facility would be affected by the final action, you should examine the applicability criteria in 40 CFR 60.2010 of subpart CCCC, 40 CFR 60.2505 of subpart DDDD, and 40 CFR 241. If you have any questions regarding the applicability of the final action to a particular entity, contact the persons listed in the preceding FOR FURTHER INFORMATI ON CONTACT section. C. Where can I get a copy of this document? The docket number for the action regarding the CISWI NSPS (40 CFR part 60, subpart CCCC) and EG (40 CFR part 60, subpart DDDD) is Docket ID Number EPA

– HQ

– OAR

– 2003

– 0119. Worldwide Web. In addit ion to being available in the docket, an electronic copy of the final action is available on the WWW through the TTN Website. Following signature, the EPA posted a copy of the final action on the TTN’s policy and guidance page for newly proposed or promulg ated rules at http://www.epa.gov/ttn/oarpg. The TTN provides information and technology exchange in various areas of air pollution control. D. Judicial Review Under the CAA section 307(b)(1), judicial review of this final rule is available only by filing a petition for review in The Court [INSERT DATE 60 DAYS FROM DATE OF PUBLICATION OF THEPage 14 of 527

FINAL RULE IN THE FEDERAL REGISTER] . Under CAA section 307(d)(7)(B), only an objection to this final rule that was raised with reasonable specificity during the period f or public comment can be raised during judicial review. This section also provides a mechanism for us to convene a proceeding for reconsideration, "[i]f the person raising an objection can demonstrate to EPA that it was impracticable to raise such objectio n within [the period for public comment] or if the grounds for such objection arose after the period for public comment (but within the time specified for judicial review) and if such objection is of central relevance to the outcome of this rule." Any pers on seeking to make such a demonstration to us should submit a Petition for Reconsideration to the Office of the Administrator, Environmental Protection Agency, Room 3000, Ariel Rios Building, 1200 Pennsylvania Ave., NW., Washington, DC 20004, with a copy t o the persons listed in the preceding FOR FURTHER INFORMATION CONTACT section, and the Associate General Counsel for the Air and Radiation Law Office, Office of General Counsel (Mail Code 2344A), Environmental Protection Agency, 1200 Pennsylvania Ave., NW. , Washington, DC 20004. Note, under CAA section 307(b)(2), the requirements established by this final rule may not be challenged separately in any civil or criminal proceedings brought by the EPA to enforce these requirements.Page 15 of 527

Resource Conservation and Rec overy Act sections of the rule would be subject to judicial review under RCRA.
E. EXECUTIVE SUMMARY: Purpose of the Regulatory Action The EPA is promulgating final rules that establish standards for new and existing CISWI units. Section 129 of the CAA, tit led “Solid Waste Combustion,” requires the EPA to develop and adopt standards for commercial and industrial solid waste incineration units pursuant to CAA sections 111 and 129. This final rule makes certain revisions to the final “Standards
of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units,” 76 FR 15704 (March 21, 2011), based on the issues proposed for reconsideration issues (76 FR 40582) and in response to publi c comments on the proposed CISWI reconsideration rule. On May 18, 2011, the EPA issued a notice that delayed the effective dates of the March 21, 2011, CISWI rule (the “Delay Notice”). 76 FR 28662 (May 18, 2011). As the result of that action, the 2000 CISW I rule remained in effect. The Court vacated the Delay Notice in January 2012. However, because the Delay Notice delayed the effectiveness of the CISWI rule from May 2011 through vacature vacatur of that notice in January 2012, the revisions to the 2000 CIS WI rule that were finalized in thePage 16 of 527

2011 CISWI rule were never codified in the CFR, but instead appear as notes after the corresponding provisions of the 2000 CISWI rule in the CFR. Although the issues on reconsideration were limited in the December 2011 CI SWI reconsideration proposal, we had to include in that proposed reconsideration rule all of the regulatory changes that had been made since the 2000 rule because the 2011 CISWI rule was not codified in the CFR. Specifically, we included in the December 23 , 2011, proposed reconsideration rule all of the regulatory changes the EPA had made to the 2000 CISWI rule in the 2011 CISWI rule, as well as the changes to the 2011 CISWI rule that the EPA proposed to make on reconsideration. In response to the Court’s

v acature vacatur of the Delay Notice in January 2012, this final action lifts the delay of effectiveness so that the CFR can be revised to properly reflect the revisions to the 2000 CISWI rule that were finalized in the 2011 CISWI rule. This final action als o contains regulatory text that amends the 2011 CISWI rule to address the reconsideration. Therefore, this final rule’s amendatory language differs from that of the December 2011 reconsideration proposal as it amends the 2011 CISWI rule instead of the 2000 CISWI rule. This change to the amendatory baseline in no way alters our limitation of the issues for comment for which we granted reconsideration. We have provided in the CISWI docket a redline/strikeout file of the 2000 CISWIPage 17 of 527

rule to help implementing ag encies and affected sources to identify the sum total of the revisions made to the 2000 CISWI rule through today’s final notice pursuant to the 2011 CISWI rule and this final action. Summary of Major Provisions for the Final Reconsideration Rule In genera l, the final rule establishes revised numeric emission limits for some new and existing CISWI units for certain of the nine pollutants listed in section 129(a)(4) of the CAA. 1
The EPA established or revised standards for four subcategories of CISWI units in the 2011 CISWI rule: incinerators; small remote incinerators; ERUs; and waste

- burning kilns. The 2011 CISWI rule also included two subcategories of ERUs. In this final rule, we have further subcategorized ERUs and subcategorized waste

- burning kilns base d on design type differences. Thus, the final rule includes three subcategories of ERUs and separate CO limits for two subcategories of waste

burning kilns. We have further revised some of the CISWI limits proposed in the reconsideration notice in response to comments on CO span methodology and because we incorporated additional data,

1 The nine pollutants for which we must issue emission standards under section 129 are: PM, SO 2 , HCl, NO X , CO, Pb, Cd, Hg, D/F. CAA section 129(a)(4).Page 18 of 527

including new data submitted during the comment period. These changes primarily affect the ERU and waste

- burning kiln subcategories but also affect some of the limits in each of the four subcategories. To ensure compliance with the emission limits, this final rule establishes stack testing and continuous monitoring requirements. The rule allows sources to use CEMS if an owner or operator chooses to do so. Continuous parameters and emissions levels (if used) are measured as either a 3

- hour block or a 30

- day rolling average basis, depending on the parameter being measured and the subcategory of CISWI. Since sources may choose to cease or start combusting solid waste at any time due to market conditions or for other reasons, the final rule contains provisions that specify the steps necessary for sources to switch applicability between this final rule and other applicable emission standards issued pursuant to CAA section 112. This rule also contains revisions to some of the monitoring, recordkeeping and reporting requirements. The date existing sources must comply with the final CISWI rule depends primarily on state plan approval but may be no later than the date 5 years after publ ication of this final rule in the Federal Register . For new sources, the effective date is either [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL
RULE IN THE FEDERAL REGISTER ] or the date of startup of thePage 19 of 527

source, whichever is later. New sources a re defined as sources that began construction on or after June 4, 2010, or commenced reconstruction or modification after [ INSERT THE DATE 6 MONTHS
AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]. Costs and Benefits The final rule affects 106 existing sources located at 76 facilities. The EPA projects an additional incinerator and five additional small remote incinerators to be subject to this rule over the next 5 years. This final rule applies to facilities in multiple sectors of our economy including small entities. Table 1 of this preamble summarizes the costs and benefits associated with this final rule. Note, these are the costs and benefits of the final 2011 CISWI rule as amended by today’s final rule and replace the costs and benefits pr esented in the March 2011 final rule. For comparison, the 2011 final rule, at a 7 percent discount rate, had costs of $218 million and monetized benefits of $320 to $790 million (2008 dollars). ( However, because the February 2011 RIA did not incorporate th e final engineering costs and emission reductions estimates, it reported costs of $280 million and monetized benefits of $310 to $750 million (2008 dollars)). For comparison, the 2011 final rule, at a 7 percent discount rate, had costs of $280 million and m onetized benefits of $310 to $750 million (2008 dollars). However, EPA noted that the RIA did not incorporate the final engineeringPage 20 of 527

costs and emission reductions, which would decrease the engineering costs by approximately 22% and increase the monetized be nefits by approximately 4%. A more detailed discussion of the costs and benefits of this final rule is provided in section II.G of this preamble. Table 1. Summary of the Monetized Benefits, Social Costs and Net Benefits for the Final CISWI NSPS and EG In 2015 (Millions of 2008$) 1 3 percent Discount Rate 7 percent Discount Rate Total Monetized Benefits 2 $420 to $1,000 $380 to $930 Total Social Costs 3 $258 $258 Net Benefits $160 to $770 $120 to $670

Non

- monetized Benefits Health effects from exposure to HAP 780 tons of HCl, 2.5 tons of lead, 1.8 tons of Cd, 680 pounds of Hg, and 58 grams of dioxins/furans) Health effects from exposure to criteria pollutants (20,000 tons of CO , 6,300 tons of SO 2 , 5,400 tons of NO 2 , and secondary formation of ozone) Ecosystem effects Visibility impairment 1 All estimates are for the implementation year (2015) and are rounded to two significant figures. These results reflect the lowest cost disposal assumption. 2 The total monetized benefits reflect the human health benefits associated with reducing exposure to PM 2.5 through reductions of PM 2.5 precursors such as directly emitted particles, SO 2 , and NO x . It is important to note that the monetized benefits include many but not all health effects associated with PM 2.5 exposure. Monetized benefits are shown as a range from Pope, et al. (2002) to Laden, et al. (2006). These models assume that all fine particles, regardless of their chemical composition, are equally pot ent in causing premature mortality because thePage 21 of 527

scientific evidence is not yet sufficient to allow differentiation of effect estimates by particle type.

3 The methodology used to estimate social costs for 1 year in the multimarket model using surplus chang es results in the same social costs for both discount rates.

II. CISWI Reconsideration and Final Rule A. Background Information 1. What is the history of the CISWI standards? On December 1, 2000, the EPA promulgated NSPS and EG for CISWI units (60 FR 75 338), hereinafter referred to as the 2000 CISWI rule. On January 30, 2001, the Sierra Club filed a petition for review in the Court challenging the EPA’s final CISWI rule. On August 17, 2001, the EPA granted a Request for Reconsideration, pursuant to CAA s ection 307(d)(7)(B), submitted on behalf of the National Wildlife Federation and the Louisiana Environmental Action Network, related to the definition of “commercial and industrial solid waste incineration unit” and “commercial or industrial waste” in the 2000 CISWI rule. In granting the petition for reconsideration, the EPA agreed to undertake further notice and comment proceedings related to these definitions. On September 6, 2001, the Court entered an order granting the EPA’s motion for a voluntary reman d of the CISWI rule, without vacatur. The EPA requested a voluntary remand of the final CISWI rule to address concerns related toPage 22 of 527

the EPA’s procedures for establishing MACT floors for CISWI units in light of the Court’s decision in Cement Kiln Recycling
Co alition v. EPA , 255 F.3d 855 (DC Cir. 2001)(Cement Kiln). Neither the EPA’s granting of the petition for reconsideration, nor the Court’s order granting a voluntary remand, stayed, vacated or otherwise influenced the effectiveness of the 2000 CISWI rule. T herefore, the remand order had no effect on the effectiveness of the 2000 CISWI rule. On February 17, 2004, the EPA published a proposed rule (CISWI Definitions Rule) soliciting comments on the definitions of “solid waste,” “commercial and industrial wast e,” and “commercial and industrial solid waste incineration unit.” On September 22, 2005, the EPA published in the Federal Register the final rule reflecting our decisions with respect to the CISWI Definitions Rule. The rule was challenged and, on June 8, 2007, the Court vacated and remanded the CISWI Definitions Rule. In vacating the rule, the Court found that CAA section 129 unambiguously includes among the incineration units subject to its standards, any facility that combusts any solid waste material, s ubject to four statutory exceptions. While the Court vacated the CISWI Definitions Rule, the 2000 CISWI rule remained in effect. On March 21, 2011, the EPA promulgated revised NSPS and EG for CISWI units (76 FR 15704)(2011 CISWI rule). That actionPage 23 of 527

constit uted a partial response to the voluntary remand of the 2000 CISWI rule and to the 2007 vacatur and remand of the CISWI Definitions Rule. In addition, the EPA addressed the 5

- year technology review that is required under CAA section 129(a)(5). On the same d ay, the EPA issued a notice that it intended to reconsider certain aspects of the 2011 CISWI rule that warrant further opportunity for public comment (76 FR 15266). Following promulgation of the 2011 CISWI rule, the EPA received petitions for reconsiderat ion from the following organizations (“Petitioners”): Alaska Oil and Gas Association/Alaska Miners Association/ConocoPhillips (AOGA), American Chemistry Council (ACC), American Foundry Society (AFS), American Iron and Steel Institute (AISI) and American
Co ke and Coal Chemicals Institute (ACCCI), Anthracite Region Independent Power Producers Association (ARIPPA), American Petroleum Institute (API) and National Petrochemical and Refiners Association (NPRA), Auto Industry Forum (AIF), Citizens Energy Group (CE G), Council of Industrial Boiler Owners (CIBO), Earthjustice/Sierra Club, Edison Mission Energy, Hovensa L.L.C. and Tesoro Hawaii Corp., Industry Coalition (AF&PA et al.),
JELD

- WEN Inc., Portland Cement Association (PCA), Renovar Energy Corp., and Waste Ma nagement Inc. (WM). Copies of these petitions are provided in the docket (see Docket ID Number EPA

- HQ

- OAR

2003

- 0119). Petitioners, pursuant to CAA section 307(d)(7)(B),Page 24 of 527

requested that the EPA reconsider numerous provisions in the 2011 CISWI rule. On May 1 8, 2011, the EPA issued a notice to postpone the effective dates of the March 21, 2011, final CISWI rule. This notice also requested that the public submit additional data and information to the EPA by July 15, 2011, for review and consideration in the rec onsideration proceedings. On December 23, 2011, the EPA published a proposed rule soliciting comment on the issues on which the EPA was granting reconsideration. In March 2011, the EPA had publically stated its intent to reconsider some of these issues. 76 FR 15266. The EPA limited comment in the December 23, 2011, proposed rule to the specific issues on which it was granting reconsideration which included the following: Revising the subcategories and emission limits for ERUs and waste

- burning kilns to refl ect updated inventories and additional data. Establishing limitations on fuel switching provisions. Definitions of cyclonic burn barrels, burn

- off ovens, soil treatment units, laboratory analysis units and space heaters from CISWI subcategories. Providing an affirmative defense for malfunction events. Revisions to the CO monitoring requirements. Establishing a full

- load stack test requirement for CO coupled with continuous O 2 (trim) monitoring. Establishing a definition of “homogeneous waste.” Responding to comments on the 2011 CISWI rule regarding the use of fuel variability in emission limit calculations.Page 25 of 527

Responding to comments on the 2011 CISWI rule regarding the review of D/F data and non

- detect methodology using three times the detection level. Respondi ng to comments on the 2011 CISWI rule regarding providing an option for sources to use emissions averaging to demonstrate compliance. Establishing a definition for foundry sand thermal reclamation unit. Reinstating the definition of contained gaseous mater ial. Revising the definition of chemical recovery unit. Allowing for the use of feed stream analysis or other supplemental information to demonstrate compliance. Responding to comments on the 2011 CISWI rule regarding providing percent reduction alternativ e standards. Providing parametric monitoring provisions for additional control device types. Revisions to the continuous monitoring provisions for large ERUs. Extending effective dates. Technical corrections and clarifications.

2. How is the definition o f solid waste addressed in the final CISWI rule? The RCRA definition of solid waste is integral in defining the CISWI source category. The EPA defines NHSMs that are solid waste under RCRA in the final “Identification of Non

- Hazardous Secondary Materials That Are Solid Waste” Rulemaking. In an action parallel to the March 21, 2011, final CISWI rule, the EPA promulgated a final rule that identifies whether NHSMs are or are not solid waste when used as fuels or ingredients in combustion units. That action, h ereinafter referred to as thePage 26 of 527

“2011 NHSM final rule,” is relevant to the final CISWI rule because some ERUs and waste

- burning kilns combust, in their combustion units, secondary materials that are solid waste under the 2011 NHSM final rule. Commercial and industrial units that combust solid waste are subject to standards issued pursuant to CAA section 129, rather than to standards issued pursuant to CAA section 112 that would otherwise be applicable to such units (e.g., units that would be boilers, process heaters or cement kilns if they were not combusting solid waste). 3. What is the relationship between this rule and other combustion rules? These amendments address the combustion of solid waste materials (as defined by the Administrator under RCRA in the NHSM Definition rule) in combustion units at commercial and industrial facilities. If an owner or operator of a CISWI unit permanently ceases combusting solid waste, the affected unit would no longer be subject to the CISWI rule because the unit would not be a solid waste incineration unit subject to standards under CAA section 129. Standards issued pursuant to section 112 of the CAA may apply to CISWI units that cease combusting solid waste. For example, CAA section 112 standards applicable to boilers and process heaters at major sources and boilers at area sources would apply to boilers and process heaters that cease combusting solid waste. Boilers and processPage 27 of 527

heaters that are located at commercial and industrial facilities and that combust solid waste are subject to CISWI as ERUs. The EPA has also finalized the CAA section 112 standards for the Portland Cement Manufacturing Industry (75 FR 21136, September 9, 2010). Cement kilns combusting solid waste are waste

- burning kilns subject to CISWI, not the other wise applicable CAA section 112 standards. 4. What is the response to the vacatur of effective dates? On January 9, 2012, the Court vacated the May 18, 2011, Delay Notice, which delayed the effective dates of the 2011 CISWI rule. On February 7, 2012, the EPA issued a no action assurance letter regarding certain notification deadlines in the March 2011 CISWI rule. The EPA has conducted outreach to each EPA Regional Office and it has not found any new CISWI units that commenced construction since the propose d CISWI rule was published on June 10, 2010. The CAA defines a “new source,” in part, as any source that commences construction after the publication date of proposed CAA section 111 and 129 standards 2 CAA section 129(g)(2). Based on our outreach efforts, we do not believe

2 The date for determining whether a source is a “new” source is the publication date of the proposed standards. The final rule and reconsideration proposal contained a typographical error in 40 CFR 60 .2015(a)(1) that did not specify the June 4, 2010, proposal date.Page 28 of 527

there are any CISWI units that are in noncompliance with the NSPS contained in the final 2011 CISWI rule. As explained above, today’s final rule amendatory text reflects changes to the 2011 CISWI rule, not the 2000 CISWI rule as in the re consideration proposal notice. We have provided in the CISWI docket a redline/strikeout file of the 2000 CISWI rule to help implementing agencies and affected sources to identify the sum total of the revisions made to the 2000 CISWI rule pursuant to the 20 11 CISWI rule and this final action. B. Summary of This Final Rule As stated above, the December 23, 2011, proposed rule addressed specific issues and provisions the EPA identified for reconsideration. This summary of the final rule reflects the agency’s f inal action in regards to those provisions identified for reconsideration and on other discrete matters identified in response to comments or data received during the comment period. Information on other provisions and issues not proposed for reconsiderati on is contained in the notice and record for the 2011 CISWI rule. 76 FR 15704 (March 21, 2011). 1. Subcategories of Affected Units and Emission Standards This final rule defines a CISWI unit, in part, as any combustion unit at a commercial or industrial f acility that is used to combust solid waste (as defined under RCRA)(40 CFR 60.2265 (NSPS) and 60.2875 (EG)). We have established standardsPage 29 of 5 27

in this final rule for the following four subcategories of CISWI units: incinerators (i.e., units designed to burn di scarded waste materials for the purpose of disposal); small, remote incinerators; ERUs (i.e., units that would be boilers or process heaters if they did not combust solid waste); and waste burning kilns (i.e., units that would be cement kilns if they did n ot combust solid waste). We have further subcategorized ERUs into three subcategories and waste burning kilns into two subcategories for CO emission limits only. Changes to the subcategories made since proposal are discussed below in section II.C of this p reamble: “Summary of Significant Changes Since Proposal.” The final rule emission limits for new and existing sources in the solid

- fuel burning ERU subcategory and the waste

- burning kilns subcategories were revised based on changes to the inventories for those subcategories as discussed below in section II.C of this preamble: “Summary of Significant Changes Since Proposal.” Tables 2 and 3 of this preamble present the final emission limits for all subcategories for existing and new sources, respectively.

Ta ble 2. Comparison of Existing Source MACT Floor Limits for 2000 CISWI Rule and the Final MACT Floor Limits Pollutant Incin - CISWI SubcategoriesPage 30 of 527

(units) a erators

(2000 CISWI limit) Incin erators ERUs -

Solids ERUs –

Liquid/Gas Waste burning kilns Small,

remote incin erators HCl (ppmv) 62 29 0.20 (bioma ss units) / 13 21 (coal units) 14 b 3.0 b 300

CO (ppmv) 157 17 260 (bioma ss units) / 95 (coal units) 35 110 (long kilns) / 790 (preheater / precalcine r) 64

Pb (mg/dscm) 0.04 0.015 0.014 b (bioma ss units) / 0.14 b (coal units) 0.096 0.014 b 2.1

Cd (mg/dscm) 0.004 0.0026 0.0014 b (bioma ss units) / 0.0095 (coal units) 0.0 23 0.0014 b 0.95

Hg (mg/dscm) 0.47 0.0048 0.0022 (bioma ss units) / 0.016 (coal units) 0.0024 b 0. 011 b 0.0053Page 31 of 527

Pollutant (units) a Incin erators (2000 CISWI limit) CISWI Subcategories

Incin erators ERUs -

Solids ERUs –

Liquid/Gas Waste burning kilns Small,

remote incin erators PM, filterable (mg/dscm) 70 34 11 (bioma ss units) / 160 (coal units) 110 4.6 270

Dioxin, furans, total (ng/dscm) (no

limit) 4.6 0.52 b (bioma ss units) / 5.1 b (coal units) 2.9 b 1.3 4,400

Dioxin, furans, TEQ (ng/dscm) 0.41 0.13 0.12 (bioma ss units) / 0.075 b (coal units) 0.32 b 0.075 b 180

NO x (ppmv) 388 53 290 (bioma ss units) / 340 (coal units) 76 630 190

SO 2 (ppmv) 20 11 7.3 (bioma ss units) / 650 (coal units) 720 600 150

a All emission limits are expressed as concentrations corrected to 7 percent O 2 . b See the memorandum in the CISWI docket "CISWI Emission Limit Calculations for Existing and New Sources for the Reconsideration Final Rule" for details on this calculation.Page 32 of 527

Table 3. Comparison of New Source MACT Floor Limits for 2000 CISWI Rule and the Final M ACT Floor Limits

Pollutant (units) a Incin erators (2000 limit) Final CISWI Subcategories

Incin erators ERUs –

Solids ERUs –

Liquid/Gas Waste burning kilns Small,

remote incin erators HCl (ppmv) 62 0.091 0.20 c (biomass units)/ 21 13 (coal units) 14 b 3.0 b 200

CO (ppmv) 157 17 240 (biomass units)/ 95 (coal units) 35 90 (long kilns) / 190 (preheater / precalciner) 13

Pb (mg/dscm) 0.04 0.015 b 0.014 b (biomass units) / 0. 013 b 14 b (coal units) 0.096 0.014 b 2.0

Cd (mg/dscm) 0.004 0.0023 0.0014 c (biomass units) / 0. 058 0095 (coal units) 0.023 0.0014 b 0.67

Hg (mg/dscm) 0.47 0.00084 b 0.0022 c (biomass units) / 0. 0028 016 (coal units) 0.00056 d 0.0037 b 0.0035

PM, filterable (mg/dscm) 70 18 5.1 (biomass units) / 1 60 (coal units) 110 2.2 270 cPage 33 of 527

Pollutant (units) a Incin erators (2000 limit) Final CISWI Subcategories

Incin erators ERUs –

Solids ERUs –

Liquid/Gas Waste burning kilns Small,

remote incin erators Dioxin, furans, total (ng/dscm) (no

limit) 0.58 b 0.52 b (biomass units) / 0.51 5.1 b (coal units) (no limit) 0.51 b 1,800

Dioxin, furans, TEQ (ng/dscm) 0.41 0.13 0.076 b (biomass units) / 0.075 b (coal units) 0.093 d 0.075 b 31

NO x (ppmv) 388 23 290 c (biomass units)/ 340 (coal units) 76 200 b 170

SO 2 (ppmv) 20 11 c 7.3 c (biomass units)/ 650 (coal units) 720 28 1.2

a All emission limits are measured at 7 percent O 2 . b See the memorandum “CISWI Emission Limit Calculations for Existing and New Sources for the Reconsideration Final Rule” for details on this calculation. c The NSPS limit equals the EG limit. The EG limit was selected as the NSPS limit. d D/F TEQ and Hg limits for ERUs

– liquid/gas were replaced with D/F TEQ limits for liquid fuel major source boi lers. See “CISWI Emission Limit Calculations for Existing and New Sources for the Reconsideration Final Rule" for details. e SO2 limits for Waste

- burning kilns were replaced with SO2 limits for Portland Cement NSPS kilns. See “CISWI Emission Limit Calculat ions for Existing and New Sources for the Reconsideration Final Rule" for details.

2. Fuel Switching ProvisionsPage 34 of 527

The EPA is finalizing the proposed fuel switching provisions that address the situation where CISWI units cease combusting solid waste, and w here existing commercial and industrial combustion units begin combusting solid waste (40 CFR 60.2330 for existing units and 40 CFR 60.2710 for new units). Units that cease combusting solid waste remain subject to CISWI for at least 6 months after solid wa ste is last added to the combustion chamber. After 6 months, sources must either comply with any applicable section 112 standard or, if they intend to combust solid waste in the future, opt to remain subject to CISWI and continue to comply with the applica ble provisions. Combustion units located at commercial or industrial facilities that begin combusting solid waste are solid waste incineration units on the date they begin combusting solid waste. Existing units that begin combusting solid waste within 6 mo nths of the effective date of the CISWI EG must comply with the standards on the effective date of those standards. Existing units that begin combusting solid waste after the effective date of the CISWI EG must comply with those standards at the time the u nit begins combusting solid waste. 3. Definitions of Cyclonic Burn Barrels, Burn

- off Ovens, Soil Treatment Units, Laboratory Analysis Units and Space Heaters We are finalizing the proposed definitions for cyclonic burn barrels, burn

- off ovens, soil treatme nt units, andPage 35 of 527

laboratory analysis units. We have revised the proposed definition for space heaters to clarify applicability for units that meet the requirements of 40 CFR 279. The final definitions describe the types of units and state that these different types of units are not incinerators, small remote incinerators, ERUs, or waste burning kilns. The EPA is including these definitions in the final rule to differentiate these units from the units for which the agency established standards in the 2011 CISWI rule and this final action. 4. Affirmative Defense for Malfunction Events The EPA is retaining in the final rule the proposed affirmative defense to civil penalties for malfunction events. The EPA first included an affirmative defense in the 2011 final

ru le in an attempt to balance a tension, inherent in many types of air regulation, to ensure adequate compliance while simultaneously recognizing that despite the most diligent of efforts, emission standards may be violated under circumstances beyond the con trol of the source. This final reconsideration attempts to add clarification to the affirmative defense by revising some of the regulatory provisions that specify the elements that are necessary to establish this affirmative defense as proposed

– with mino r changes from proposal described later in this section.Page 36 of 527

Sources are required to comply with the CISWI standards at all times, and the EPA recognizes that even equipment that is properly designed and maintained can sometimes fail and that such failure may cause an exceedance of the relevant standard. The EPA must establish emission standards that “limit the quantity, rate, or concentration of emissions of air pollutants on a continuous basis.” 42 U.S.C. §7602(k)(defining “emission limitation and emission s tandard”). See generally Sierra Club v.
EPA , 551 F.3d 1019, 1021 (D.C. Cir. 2008.) The affirmative defense for malfunction events meets this requirement by ensuring that even where there is a malfunction, the emission standard is still enforceable through injunctive relief. See generally , Luminant Generation Co. v EPA , 2012 U.S. App. LEXIS 15722 (5 th Cir. 2012) (upholding EPA’s approval of affirmative defense provisions in a CAA State Implementation Plan). While “continuous” standards, on the one hand, are required, there is also case - law case law indicating that in many situations it is appropriate for the EPA to account for the practical realities of technology. For example, in Essex Chemical v. Ruckelshaus , 486 F.2d 427, 433 (D.C. Cir. 1973), the D.C. Cir cuit acknowledged that in setting standards under CAA section 111 “variant provisions” such as provisions allowing for upsets during startup, shutdown and equipment malfunction “appear necessary to preserve the reasonableness of the standards as aPage 37 of 527

whole an d that the record does not support the ‘never to be exceeded’ standard currently in force.” See also, Portland
Cement Association v. Ruckelshaus, 486 F.2d 375 (D.C.Cir. 1973) Association v. Ruckelshaus, 486 F.2d 375 (D.C. Cir. 1973)
. Though intervening case - law case law such as Sierra Club v. EPA and the CAA 1977 amendments call into question the relevance of these cases today, they support the EPA’s view that a system that incorporates some level of flexibility is reasonable. The affirmative defense provisions allow sources to avoid civil penalt ies for exceedances caused by a malfunction event if the source demonstrates by a preponderance of the evidence that the malfunction event meets the definition of malfunction in 40 CFR 60.2. By incorporating an affirmative defense, the EPA has formalized i ts approach to upset events beyond the control of the source. In a Clean Water Act setting, the Ninth Circuit required this type of formalized approach when regulating “upsets beyond the control of the permit holder.” Marathon Oil
Co. v. EPA , 564 F.2d 1253 , 1272

- 73 (9 th Cir. 1977). See also, Mont. Sulphur & Chem. Co. v. United States EPA , 2012 U.S. App. LEXIS 1056 (Jan 19, 2012)(rejecting industry argument that reliance on the affirmative defense was not adequate). But see , Weyerhaeuser Co. v. Costle , 590 F .2d 1011, 1057

- 58 (D.C. Cir. 1978) (holding that an informal approach is adequate). The affirmative defense provisions give the EPA the flexibility toPage 38 of 527

both ensure that its emission standards are “continuous” as required by 42 U.S.C. §7602(k), and account f or unplanned upsets and thus support the reasonableness of the standard as a whole. In addition, the affirmative defense provisions are designed to ensure that steps are taken to correct the malfunction, minimize emissions during the malfunction, and preve nt future malfunctions. We are promulgating revisions to the affirmative defense provisions in section 60.2120 and 60.2685 as described at proposal (76 FR 80461) and making some minor additional revisions. The terms “exceedance” and “excess emissions” and “applicable emission limitations were being exceeded” were replaced with the term “violation” to more accurately reflect that the affirmative defense is only available when there has been a violation of the standard. The phrase “emission limit” was changed to “emission standards” to reflect that the affirmative defense could be applicable to certain work practice standards. The word “however” was removed to incorporate more plain language into the regulation. The term “notification” was changed to “reportin g” to reflect that the root cause analysis required under affirmative defense would be submitted with other periodic reporting. The term “and monitoring” was deleted because monitoring malfunctions are defined differently than malfunctions of process and c ontrol units and the affirmativePage 39 of 527

defense is intended to apply to malfunctions to affected units that cause a failure to meet an emission standard. In multiple instances the word “were” was changed to “was” to improve the clarity of a provision. The term “f acility” was changed to “affected source” to clarify that the affected source regulated by the rule must be operated in a manner consistent with good practices for minimizing emissions versus the entire facility. The phrase “off shift and overtime labor we re used, to the extent practicable to make these repairs” was removed. The EPA no longer believes the language concerning the use of off

- shift and overtime labor is necessary because the regulation requires that to establish the affirmative defense the own er must prove by a preponderance of the evidence that repairs were made as expeditiously as possible when a violation occurs. Although we believe that use of off

- shift or overtime labor could be cited as evidence that the owner or operator expedited repair s, we do not believe this level of detail is necessary in the regulatory text. The written report required when asserting an affirmative defense was changed from a separate “semiannual” report to a report that is submitted with the first periodic complianc e, deviation report, or excess emission report due after the event. Lastly, the requirement to notify the Administrator by telephone or facsimile within two business days” was removed when wePage 40 of 527

refined the affirmative defense reporting requirements based
upo n comments received.

5. Oxygen Correction Requirements and CO Monitoring Requirements We are finalizing provisions for calculating the 30

- day CO rolling average that allow uncorrected CEMS reading to be used during the period of operation from a cold sta rt to bring the combustion unit up to minimal normal operating temperature. We are also allowing uncorrected CEMS readings to be used in 30

- day average calculations for the period of operation following the last waste material (or material feed for waste b urning kilns) being fed to the combustion unit during shutdown procedures of the unit. For every type of CISWI unit except waste

- burning kilns, the period of time allowed for uncorrected CEMS data during a startup shall be 48 hours or less per startup even t and shall be 24 hours or less for each shutdown event. For waste

burning kilns, the period of startup begins when the kiln’s induced draft fan is turned on and fuel is being combusted and continues until continuous feed is introduced into the kiln, at
wh ich time the kiln is in normal operating mode. Shutdown begins when feed to the kiln is halted. Sources must indicate in the CEMS data records which CEMS data are obtained during the startup and shutdown periods. Since the O 2 correction
calculation will af fect all corrected CEMS data, we havePage 41 of 527

expanded these provisions in the final rule to allow for uncorrected CEMS data for any pollutant that sources elect to measure continuously with CEMS and calculate 30

- day rolling averages to demonstrate continuous comp liance. Additionally, we have finalized removal of continuous CO monitoring requirements for new and existing ERU units. We are instead requiring annual CO stack tests and continuous O 2 monitoring and we are allowing CO monitoring with CEMS as a compliance alternative. We have also removed the continuous CO monitoring requirements for new CISWI units in the other subcategories, but sources may demonstrate compliance using CO CEMS if they so choose. The authority to use uncorrected CEMS data during startup a nd shutdowns discussed above applies to all CISWI sources that elect to demonstrate compliance with any emission limits with a CEMS instead of performing annual stack tests. Changes to the CO and other optional CEMS monitoring requirements made since propo sal are discussed below in Section II.C of this preamble: “Summary of Significant Changes Since Proposal.” 6. Full

- load Stack Test Requirement for CO Coupled With Continuous O 2 Monitoring We are finalizing the full

- load stack test and continuous
O 2 monit oring provisions in today’s action that allow existingPage 42 of 527

sources to use their current O 2 analyzer and O 2 trim systems to demonstrate continuous compliance. Based on comments received, we have made some clarifying changes to these provisions to be clear that existing O 2 trim systems and O 2 monitors may be used to demonstrate continuous compliance, as well as clarifications on establishing the operating limits for O 2 content. Changes to
the continuous O 2 monitoring requirements made since proposal are discussed below in section II.C of this preamble: “Summary of Significant Changes Since Proposal.” 7. Non

- detect Methodology Using Three Times the Detection Level Since proposal, the EPA continued its revi ew of sampling volumes and detection levels across various emission testing ICR efforts on various combustion sources to encompass additional pollutants measured using EPA Reference Method 29 (See memorandum “Updated data and procedure for handling below d etection level data in analyzing various pollutant emissions databases for MACT and RTR emissions limits” in the CISWI docket). As a result of this analysis, we have determined recommended values for three times the RDL that may be used as a minimum emissi on limit value that can be accurately measured by most laboratories for Cd and Pb. 3

3 The RDL methodology is consistent with the RDL methodology outlined in the December 2011 reconsideration proposal. 76 FR 80463.Page 43 of 527

Furthermore, based on comments on our application of this

non - detect methodology approach to CO data measured using instrument methods, we have made some modifications to the span calculation approach used in the proposed rule. Changes to the emission limits for Cd, Pb and the span adjustment calculations for CO made since proposal are discussed below in section II.C of this preamble: “Summary of Significant Changes Since
P roposal.” 8. Definitions for Foundry Sand Thermal Reclamation Unit and Chemical Recovery Unit We are finalizing the proposed definitions of “foundry sand thermal reclamation unit” and “chemical recovery unit” to clarify that these units are not incinerators, waste

- burning kilns, ERUs or small, remote incinerators under subparts CCCC or
DDDD. 9. Definition of Contained Gaseous Material In today’s final rule, we have reintroduced and finalized the definition for “contained gaseous material” as fou nd in the 2000 CISWI rule as proposed. As discussed earlier, the Court’s
vacature vacatur of the Delay Notice now requires this definition to be reintroduced since we are now amending the 2011 CISWI rule instead of making amendments to the 2000 CISWI rule a s when we published the December 2011 reconsideration proposal.Page 44 of 527

10. Parametric Monitoring Provisions for Additional Control Device Types In the proposed rule, we requested comment on whether there were additional control device types that we should ident ify monitoring provisions for in the rule. We received comments on this topic and, in today’s final rule, are including monitoring provisions for sorbent injection rate for dry scrubber control devices (40 CFR 60.2165 and 40 CR 60.2730). We have also clari fied that sources that elect to use optional CEMS to monitor continuous compliance for Hg, D/Fs or NO 2 may do so as a substitute for parametric monitoring of ACI and SNCR control devices, respectively. Changes to the parametric monitoring provisions made s ince proposal are discussed below in section II.C of this preamble: “Summary of Significant Changes Since Proposal.” 11. Particulate Matter Continuous Monitoring Provisions for Large ERUs and Waste

- burning Kilns In today’s rule, we are finalizing some revi sions to the monitoring requirements for ERUs with an annual average heat input rate greater than 250 MMBtu/hr and extending the same PM continuous monitoring provisions to waste

- burning kilns. In the final 2011 CISWI rule, these units were required to mon itor continuously for PM using a PM CEMS; however, the PM CEMS technology may not be sufficient to certify accurate monitorPage 45 of 527

performance in the PM concentration range of the CISWI biomass ERU and waste

- burning kiln limits. Therefore, we are requiring contin uous PM parameter monitoring systems for these units similar to those being required for major industrial boilers and utility boilers. The EPA is further requiring that a site

specific parametric operating limit be established during the performance test, that there be continuous monitoring of that parametric limit using a PM CPMS, that four deviations within a 12

- month operating period constitute a violation and trigger immediate corrective action and a Method 5 performance test within 30 days with an addi tional 15 days to reestablish a site

specific operating limit. We have revised all operating parameter averaging for ERU units to be on a 30

- day rolling average and allowed the sorbent injection parameter to be adjusted for varying ERUs based on load. Cha nges to the PM continuous monitoring provisions and operating parameter provisions made since proposal are discussed below in section II.C of this preamble: “Summary of Significant Changes Since Proposal.” 12. Revised Definition of Waste

- burning Kiln Thi s final rule includes a definition of waste

- burning kiln that has been revised since the March 2011 CISWI Rule. This definition helps clarify the EPA’s intent regarding which types of Portland cement kilns are considered subject to CISWIPage 46 of 527

standards and whic h kilns are subject to the Portland cement NESHAP. Since proposal, some additional language was added to this definition to further clarify our proposed definition. Changes to the definition of waste burning kiln made since proposal are discussed below in section II.C of this preamble: “Summary of Significant Changes Since Proposal.” 13. Revised Definition of Solid Waste In the March 21, 2011, final CISWI rule, we removed the definition of solid waste that was present in the 2000 CISWI Rule in light of the definition of solid waste in the final NHSM rule. Because applicability of section 129 hinges on sources combusting solid waste, we believe it is appropriate to include a definition of that term in the CISWI rule. For that reason, the final rule contains a definition of solid waste that refers to the final NHSM rule at 40 CFR 241.2. 14. Compliance Dates In the final rule, we are revising the compliance dates for new and existing CISWI units to reflect the effective dates of this final rule. The compliance date for existing sources depends primarily on state plan approval but may be no later than the date 5 years after publication of this final rule in the Federal Register . The EG are implemented through a state implementation plan or a federal plan. Under t he final amendments to the EG, and consistent with the CAA section 129,Page 47 of 527

revised state plans containing the revised existing source emission limits and other requirements in the final amendments are due within 1 year after promulgation of the final reconsid eration amendments. States must submit revised state plans to the EPA by [ INSERT THE DATE 12 MONTHS AFTER PUBLICATION
OF THIS FINAL RULE IN THE FEDERAL REGISTER ]. The EPA will revise the existing federal plan to incorporate any changes and other requiremen ts that the EPA has promulgated. The federal plan applies to CISWI units in any state without an approved state plan. Additional discussion of the state plan implementation schedule can be found at 76 FR 15711. For new sources, the compliance date is eith er [DATE 6
MONTHS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] or the date of startup of the source, whichever is later. New sources are defined as sources that began construction on or after June 4, 2010, or commenced reconstruction or mod ification after [DATE 6 MONTHS AFTER
PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]. 15. Revised New Source Performance Standards In the 2011 CISWI rule and the proposed reconsideration rule, EPA determined that the best controlled similar unit und er section 129(a)(2) was not a solid waste incineration unit for certain new source standards. Specifically, the new source limits for certain pollutants from waste burning kilns and ERUsPage 48 of 527

were based on cement kilns and boilers, respectively. See memorandu m “CISWI Emission Limit Calculations for Existing and New Sources” in the CISWI docket. Both the industrial boiler NESHAP and the Portland cement NESHAP are being revised, and additional data has been incorporated into the new source MACT analyses for thos e rules. As a result of the new data and analyses, several of the new source NESHAP limits are being revised and EPA is changing the following new source limits in CISWI based on the revised limits in the NESHAPs: NO X for waste

burning kilns, and Hg and P CDD/PCDF for ERU

- liquid/gas units.

C. Summary of Significant Changes Since Proposal 1. Revision of the Subcategories Energy Recovery Units In the final 2011 CISWI Rule, we established separate subcategories based on the types of fuels and wastes ERUs were designed to burn. Energy Recovery Units (e.g., units that would be boilers and process heaters but for that fact that they combust solid waste) designed to burn gaseous fuels and liquids that are solid waste were included in one primary subcategory and th e other primary subcategory was for units designed to burn solid fuels or predominantly non

- coal solid materials. In the final 2011 CISWI rule, the solid fuel ERU subcategory was further divided into separate subcategories for coal and biomassPage 49 of 527

units, with separate limits for CO, NO x and SO 2 to account for significant differences in unit design for these two types of fuels and the impacts the different unit designs have on emissions of these pollutants. Because the public was not afforded an opportunity to comment on the revision to the ERU subcategory, we identified this as a reconsideration issue in the March 21, 2011, notice of intent to reconsider certain aspects of the 2011 CISWI Rule. Certain petitions for reconsideration supported the further subcateg orization of the solid

- fuel ERU subcategory and suggested that all nine emission limits should be divided between coal and biomass ERUs, instead of only having different limits for CO, NO x and SO 2 . We granted reconsideration of our subcategorization
appro ach for ERUs and proposed to establish different emission limits for PM, Cd, Pb, and D/F between coal and biomass units, in addition to establishing different limits for CO, NO x and
SO 2 . We also solicited comment on whether we should also subcategorize sol id

- fuel ERUs for HCl and Hg. Based on comments and information received during the comment period, we have determined that it is appropriate to subcategorize solid fuel ERUs for all nine CAA section 129 pollutants. We recognize that there are significant design andPage 50 of 527

operational differences between biomass and coal ERU units that impact the generation of all nine regulated pollutants, and, for this reason, we are establishing separate emission standards for all nine pollutants from coal and biomass ERUs in t his final rule. In addition, since issuing the proposed reconsideration CISWI rule, we have received comments and data which allowed us to update our inventory of ERUs. The inventory adjustments we made more accurately reflect the inventory of solid waste combustion units. Based on comments from the operator of the units, we removed three units from the final rule inventory of biomass ERUs that were determined to be non

- waste burning units and we re

- analyzed the emission limits for the solid

- biomass ERU sub category. The commenter explained that, although permitted to burn materials that would be considered solid waste, these units had ceased burning the materials in question several years ago and would not recommence burning these in the future. Thus, at the time of testing, these units were not solid waste incineration units. We also received additional CO emissions data and re

- analyzed the performance of the best

- performing ERU in the solid

- coal ERU subcategory. The emission limits in this final rule reflec t the new inventory and emission data received; however, we have used the same methodology as in the 2011 CISWIPage 51 of 527

rule and December 23, 2011, reconsideration proposal for establishing the emission limits.
Waste

- burning Kilns Prior to the reconsideration proposal, the EPA performed an analysis of the materials being combusted in the entire inventory of Portland cement kilns in light of the final NHSM rule (See memorandum “Revised Floors without Kilns that Would have been CISWI Kilns Had the Solid Waste Definition Applied” in the CISWI docket). As a result of this analysis, we added 11 kilns to our inventory of waste

- burning kilns. In addition to this, we further reviewed the Portland cement emissions test records and identified some additional test data for kilns that were added to the CISWI inventory following the March 21, 2011, final rule publication. This newly

- identified data was extracted and compiled into the CISWI database, and then the MACT floor emission limits were re

- calculated in the December 23, 2011, proposed rule to reflect the updated inventory and additional data. Following proposal, we were also notified of one additional waste

- burning kiln and that one of the kilns in the inventory was not burning waste materia ls. We made these adjustments to our inventory, bringing the total waste

- burning kiln inventory to 23 kilns. We recalculated the standards in this final rule to include all 23 waste burning kilns.Page 52 of 527

As with the new ERU standards, we have used the same metho dology to establish today’s emission limits as we used for the final 2011 CISWI rule. We have also retained the emissions concentration basis for the standards. However, Table 4 of this preamble presents the emission limits for PM, NO x , SO 2 and Hg on

a pro duction basis for comparison.
Table 4. Waste

- burning Kiln Emission Limits Expressed in Production Basis Pollutant (units) Existing kilns a New kilns a Hg (lb/MM ton clinker) 58 21 PM (lb/ton clinker) 0.026 0.013 NO x (lb/ton clinker) 6.7 1.5 SO 2 (lb/ton clinker) 8.9 0.4 a. Approximate. Small remote incinerators After the reconsideration proposal, we received additional information from stakeholders of additional units in operation and planned for operation within the next year or two that wou ld qualify as small remote incinerators. The resulting changes included moving one unit from the small remote incinerator subcategory to the incinerator subcategory due to the unit’s proximity to a landfill in Alaska. An additional 15 small remote incine rators were added to our inventory of existing units, bringing the total of this subcategory to 28 units. This additional information resulted in changes to the emissions limits. 2. Revisions to the Monitoring RequirementsPage 53 of 527

After the March 21, 2001 final rule, petitioners identified computational issues for correcting CO concentration measurements to 7 percent O 2 for periods when the O 2 content of the flue gas approaches the ambient air O 2 content during startup and shutdown periods for sources that demons trate compliance with the CO limit using CEMS. The equation for the 7 percent O 2 correction is X ppm CO*(20.9

– 7)/(20.9

- %O 2 of flue gas stream). As seen by this equation, as the flue gas stream O 2 content gets closer to 20.9, the value of X is multiplie d by an ever increasing factor. For example, when the stack gas O 2 content is 4 percent, the factor is 0.82. If the stack gas O 2 content is 20 percent, the factor increases to 15.4. Therefore, a flue gas CO concentration reading of 100 ppm would be
correct ed to 82 ppm for a stack gas at 4 percent O 2 content, but would become a 1,540 ppm corrected concentration for a stack gas at 20 percent O 2 content. In the extreme, at a 20.8 percent stack gas concentration (i.e., approximating ambient air O 2 content), the same 100 ppm measurement would be corrected to 13,900 ppm. Petitioners noted that O 2 contents relatively close to ambient air often are maintained during combustion unit startup and shutdown in order to safely operate the combustion unit. Therefore, CO re adings during these periods would be multipliedPage 54 of 527

by an uncharacteristically high correction factor, and the resulting corrected CO concentrations inflated due to the 7 percent O 2 correction. Petitioners and commenters presented data
that show these correcte d data points would have the potential to drive the 30

- day rolling average values beyond the emission limit for the affected units, but this would not be an accurate reflection of the CO emissions. Petitioners suggested various approaches to remedy this si tuation, with one being to not require the 7 percent O 2 correction requirement during unit startup and shutdown for sources that demonstrate compliance with the CO limit using CEMS. In other words, the CEMS data as reported at stack gas concentration witho ut O 2 correction would be included in the rolling average calculations for periods when the combustion unit is either being started up or shutdown instead of applying the O 2 correction to that data before it is included in the calculation of the 30 day rol ling average. During all other operating periods, the CEMS data would be corrected to a 7 percent O 2 concentration prior to calculating the rolling average. Stated otherwise, the data obtained during startup and shutdown, which will not include the 7 perce nt O 2 correction,
will be added to the O 2 corrected data collected during all other periods to calculate the 30

- day average that is used toPage 55 of 527

determine continuous compliance with the applicable CO limit for sources that demonstrate compliance using CEMS.
Pr ior to issuing the reconsideration proposal, we received data for one unit in one subcategory (coal ERUs) that indicated startups usually occur over a 4

- hour period and shutdowns occur over a 1 hour period. Therefore, we proposed provisions for calculating the 30

- day CO rolling average that would allow the source to use CEMS data that does not include the O 2 correction to be used during the first 4 hours of operation from a cold start and the 1 hour of operation following the last waste material being fed t o the combustion unit during shutdown procedures of the unit. Since proposal, however, we received comments on this provision, primarily pointing out that longer periods are required to protect combustion equipment from rapid temperature swings, which coul d cause damage to the fireboxes or kiln surfaces. Commenters also contended that the limited information concerning the startup and shutdown periods during which the O 2 correction would not be required did not reflect the needs for all combustor types or c ontrol device configurations. We have therefore revised the shutdown and startup period of operation to be more generally applicable to CISWI units. In the case of ERUs, incinerators and small remote incinerators, we determined that the startup period shou ldPage 56 of 527

include the times prior to the source reaching the minimal operating temperature, but in no case longer than 48 hours. For shutdown, we determined as at proposal that shutdown begins after the last waste has been fed to the combustor prior to shutdown b ut we have revised the final rule to indicate that the shutdown period may not exceed 24 hours. We have, therefore, specified in the final rule an UL of 48 hours for startup periods to use uncorrected CEMS data and 24 hours for shutdown periods to use unco rrected CEMS data for ERUs, incinerators and small remote incinerators. For waste

- burning kilns, these periods are triggered off of material feed to the kiln rather than solely waste feed. This addresses the fact that kilns, unlike other CISWI units, are p roducing product rather than solely disposing of waste or recovering energy. Therefore, for
waste

- burning kilns, startup begins when the kiln’s induced fan is turned on and continues until continuous feed is introduced into the kiln at which time the kiln is in normal operating mode. Shutdown begins when feed to the kiln is halted. As at proposal, sources must indicate in the CEMS data records which CEMS data are uncorrected because they were obtained during the startup and shutdown period. The O 2 correcti on issue described above for CO CEMS data collected during startup and shutdown applies equally to other pollutants measured with a CEMS that is corrected to 7 percentPage 57 of 527

O 2 . The final CISWI rule allows sources to demonstrate compliance with any of the standa rds using CEMS, and, for this reason, we have expanded authorization to use uncorrected CEMS data during periods of startup and shutdown to all pollutants for which a source demonstrates compliance with CEMS. In the final rule, the 7 percent O 2 correction is not required during startup and shutdowns for any CISWI sources that elect to demonstrate continuous compliance with any of the emission limits with a CEMS instead of stack tests. 3. Oxygen Monitoring Requirements At proposal, we included provisions and definitions in an attempt to ensure that sources would be able to use existing O 2 monitoring systems to meet the continuous O 2 monitoring requirements. However, commenters identified potential issues with our proposed provisions and definitions. To addres s these commenters’ concerns, we have revised the provisions in 40 CFR 60.2165 and 40 CFR 60.2730 to clarify the methodology for establishing and monitoring the O 2 level. Furthermore, the definition of “oxygen analyzer system” has been revised to clarify t he appropriate locations and nomenclature of possible existing monitoring systems so that their use to meet these requirements is fully enabled. 4. Removal of the Definition of Homogeneous WastePage 58 of 527

The EPA included in the final 2011 CISWI Rule a definition of homogenous waste and a process for evaluating claims that a particular waste stream is homogenous. The definition was added to the 2011 CISWI rule in response to comment. Because the determination of homogeneity of a waste stream is relevant to applicabil ity of CAA section 129 to qualifying small power producers and qualifying cogeneration facilities, we determined it was reasonable to include a definition of “homogenous waste” and a process by which sources could obtain a determination that
a waste stream is homogenous from the EPA. In the 2011 CISWI Rule, the EPA stated that a determination concerning whether a waste is homogeneous is made on a case

- by

case basis. The EPA added provisions to the CISWI final rule that require source owners or operators se eking the exemption to submit a request for a homogeneous waste determination to the EPA, and that they support their request with information describing the materials to be combusted and why they believe the waste is homogeneous. The 2011 CISWI rule also stated that the determination of what constitutes a homogeneous waste is not delegable to the state or local agencies. In the December 23, 2011, reconsideration proposal, we proposed for comment the definition of “homogeneous waste” and the provisions for making homogeneous waste determinations that were included in the 2011 CISWI rule.Page 59 of 527

Commenters generally did not agree with the proposed definition and provisions for making a homogeneous waste determination, arguing that the definition and provisions introduced ambiguities and stipulations that would prevent classification of many materi als (including fossil fuels) as being “homogeneous.” We reevaluated the definition and provisions in light of the comments and determined that the definition and provisions could be interpreted in a manner that would be unduly restrictive; however, we als o determined that commenters proposed alternative definitions and provisions were equally problematic. Therefore, the final rule does not include a definition of “homogeneous waste”. We are also removing the requirement that qualifying small power produc ers and qualifying cogeneration facilities that combust solid waste obtain a determination from EPA that such waste is homogenous. Because the final rule does not include a homogenous waste definition or a process to obtain a determination from EPA, we be lieve that it is appropriate to inform the EPA when a unit qualifies as a small power generator or cogeneration facility as defined under section 129 because the site specific fact patterns for different types of waste may vary considerably. Therefore, the final rule requires qualifying small power producers and qualifying cogeneration facilities that combust solid wastePage 60 of 527

notify the EPA that such waste is homogeneous. (40 CFR 60.2020 and 40 CFR 60.2555). Section 129 states, in part, that the term “solid wast e incineration unit” does not include:

...qualifying small power production facilities, as defined in section 796 (17)(C) of title 16 , or qualifying cogeneration facilities, as defined in section 796 (18)(B) of title 16 , which burn homogeneous waste ( such as units which burn tires or used oil, but not including refuse

- derived fuel ) for the production of electric energy or in the case of qualifying cogeneration facilities which burn homogeneous waste for the p roduction of electric energy and steam or forms of useful energy (such as heat) which are used for industrial, commercial, heating or cooling purposes... CAA Section 129(g)(1)(B) ( emphasis added ) We believe that the parenthetical contained in the

exem ption that prohibits refuse derived fuel, which is made from municipal solid waste, from qualifying as homogenous waste and allows tires and used oil to qualify as homogenous wastes provides guidance on what constitutes a homogenous waste. We do not accep t industry’s assertion that any waste from a common source is homogeneous, or that in all cases combining twoPage 61 of 527

homogeneous wastes results in a homogeneous waste, as doing so could result in almost any waste stream being homogenous. We do not believe that i s consistent with the statute. Instead, we believe Congress intended this exemption to apply only when the waste stream has a consistent makeup that allows the source and the enforcement authority to predict the range of emissions from the combustion of th e waste on an ongoing basis. In keeping with this interpretation, we maintain that the homogeneous wastes are generally material specific (e.g. (e.g., tires or used oil). We believe this means that a homogeneous waste is of known origin and that it can be identified as a specific material or materials

– using the example in the Act, certain used oils or scrap tires. By contrast, municipal solid waste can be identified as municipal solid waste as a general term, but it is not composed of only one or two specific type of waste; e.g. municipal solid waste cannot be identified as one specific material or group of materials. Regarding variability of the composition of homogeneous waste throughout, homogeneous waste may have variations in composition, but it should generally be within the range of operations which produce the
waste (e.g. (e.g., size, contaminant levels, state of matter.) We also believe that off

- spec materials may be homogeneous, even if they are not homogeneous to the on

- spec material, and t hat, if combusted together, both the on

- spec and off

- spec materialsPage 62 of 527

may require separate homogenous waste determinations. We also believe that homogeneous waste should have predictable known contaminant levels, even if those contaminant levels vary within a range. We may question the homogeneity of a specific material if it is adulterated such that it takes on the characteristics of a different type of waste (e.g. (e.g., used oil which is so contaminated with PCB’s from a leaking heat exchanger, such that the used oil takes on the characteristics of a waste PCB stream as opposed to a used oil stream) or where the BTU value of a waste is so altered that other fuels must be introduced to ensure combustion and preserve the purpose of combustion under the exem ption, i.e. to produce energy. 5. Non

- detect Methodology Using Three Times the Detection Level Prior to reconsideration proposal, the EPA conducted a review of sampling volumes and detection levels across various emission testing ICR efforts on various combustion sources (See memorandum “Updated data and procedure for handling below detection level data in analyzing various pollutant emissions databases for MACT and RTR emissions limits” in the CISWI docket). As a result of this analysis, we determined recommended values for three times the RDL (3xRDL) that may be used as a minimum emission limit value that can be accurately measured by most laboratories. These recommended values were then compared with calculated emission limits and, if the calculated l imit wasPage 63 of 527

less than the recommended 3xRDL, the 3xRDL value was selected as the limit. Since the December 23, 2011, reconsideration proposal was published, we have continued our review and determined 3xRDL values for additional metals measured using EPA Refe rence Method 29. These include recommended values for Cd and Pb and we have applied this methodology to those emission limits in addition to the D/F and Hg limits that were reevaluated in the reconsideration proposal. As discussed in the reconsideration
pr oposal, the premise for this approach is the same as described in the final 2011 CISWI rule but using a broader data set to establish the 3xRDL value. We have not changed the methodology of the emission limit calculation or tabulation of the three times th e detection limit value that was used in the final 2011 CISWI rule. Since reconsideration proposal, some commenters have noted that the EPA Method 5 minimum catch values were below levels established in similar studies on this reference method. In light of these comments, we have reconsidered the 1 mg minimum catch value used in the reconsideration proposal and are now using a 1 mg minimum catch in establishing the final rule emission limits. Our review and determination of the 1 mg minimum catch are discus sed in “Minimum Detection Limit for EPA Method 5” in the CISWI docket.Page 64 of 527

In a similar fashion, the CO span adjustment methodology has been further refined in consideration of comments on the approach used to adjust CO instrumental test methods readings in

r econsideration proposal. The methodology for adjusting CO emission test run data to reflect the limitations from the instrument span used at testing is described in the “CISWI Emission Limit Calculations for Existing and New Sources for the Reconsideration Final Rule" memorandum in the CISWI docket. 6. Parametric Monitoring for Additional Control Device Types In the December 23, 2011, reconsideration proposal, we stated that we believed the control devices with monitoring provisions expressly identified in the rules should encompass most types of control devices that we anticipate the various types of CISWI units will use to meet the emission limits. However, recognizing that a source might want to employ another type of control that is not addressed, we pro vided provisions for sources to petition for specific operating limits for alternative control devices to be established during a performance test. These provisions also allow specific operating limits to be established for CISWI units without any air poll ution control devices, such as for units that employ material balance operating limits in conjunction with periodic stack testing to demonstrate continuous compliance.Page 65 of 527

We also determined that dry sorbent injection (or dry scrubbers) may be one type of addi tional control device that CISWI units may widely use to control acid gases. Commenters agreed with our statement and encouraged the EPA to identify operating parameters for dry scrubbing systems in the final rule. We have done so, by both defining “dry sc rubber” in the rule, and specifying that the sorbent injection rate must be monitored and maintained at or above the operating rate established during the HCl performance test (40 CFR 60.2165 and 40 CFR 60.2730). Furthermore, we have determined that the

so rbent injection rate for ERUs can be adjusted to reflect operating loads that are less than those during the performance testing. Commenters have made arguments that requiring a high sorbent injection rate during reduced boiler loads can lead to fouling an d plugging issues, especially for acid gas sorbent injection. To address this particular concern, and to provide consistency with other industrial boiler rules, we are also providing this parametric monitoring provision for sorbent injection air pollution control devices. Also regarding monitoring, we determined after proposal that we had not clarified in the rule that sources opting to use
CEMS to measure NO X , Hg or D/F were not required to monitor ACI rates (for Hg and D/F CEMS

- equipped units) or SNCR parameterPage 66 of 527

monitoring (for NO X CEMS

- equipped units). Our intent had been to not require applicable control device parameter monitoring if a CEMS was in use for t he pollutant being controlled by the device. Control device parameter monitoring is an acceptable and established method for determining continuous compliance and it is appropriate to require such monitoring when coupled with period stack testing. However, direct, continuous emission measurements with a CEMS are sufficient for determining compliance for CISWI units without requiring parametric monitoring. In cases where CEMS data are available to directly measure regulated pollutants, operating parameter da ta would be duplicative. 7. Particulate Matter Continuous Monitoring Provisions for Large ERUs and Waste

- burning Kilns In today’s rule, we are finalizing monitoring requirements for ERUs with an annual average heat input rate greater than 250 MMBtu/hr. As we stated in the proposal, recent EPA experience with the utility boiler source category has led the EPA to allow PM CEMS as an alternative, rather than a requirement. Industry commenters have maintained that there were several problems with implementing t he monitoring requirements to demonstrate compliance using a PM CEMS and with the requirements to conduct a periodic audit of the PM CEMS in accordance with PS 11 of appendix B and Procedure 2 of appendix F to part 60. As wePage 67 of 527

discuss in response to these co mments later in this preamble (See II.E), the PM CEMS technology may not be sufficient to certify accurate monitor performance in the PM concentration range of the CISWI biomass ERU limits. Furthermore, in related ongoing work on the Portland cement source category, we realize that similar concerns regarding PM CEMS are applicable. Therefore, we are also removing PM CEMS (PS

- 11) requirements for
waste

- burning kilns, and instead, requiring PM CEMS equipment for these units that are used for continuous parame tric monitoring rather than for direct measure of compliance with the numerical PM emissions limit, similar to those being required for major industrial boilers and utility boilers. However, PM CEMS (PS

- 11), are still allowed as an option for coal ERUs, in cinerators and small remote incinerators, since the emission limits for these subcategories do not pose the same technical concerns as for biomass ERUs and waste

- burning kilns. To be consistent with these other rules, we have incorporated 30

- day rolling av erages to be measured with PM CPMS. The EPA is further requiring that a site

- specific parametric operating limit be established during the performance test, that there be continuous monitoring of that parametric limit using a PM CPMS, that an exceedance of that site

- specific operating limit be reported as a deviation and trigger immediate corrective action and a Method 5 performance test within 45 days.Page 68 of 527

8. Compliance Dates At reconsideration proposal, we proposed to extend the compliance dates for existing units in the incinerator, ERU and
waste

- burning kiln subcategories. We are finalizing the revision of the effective dates for those three subcategories and, based on comments received, we are also extending the compliance date for units in the small remot e incinerator subcategory. The EPA proposed to amend the standards for CO for all subcategories of CISWI; to further subcategorize certain subcategories; to change several other pollutant standards for incinerator, ERU and waste burning kilns subcategories ; to change the compliance regime from CEMS

- based to stack

- test/parametric

- monitoring based for certain pollutants and unit types; and to change the compliance calculation provisions for sources that are required or that elect to use CEMS to demonstrate co ntinuous compliance. These proposed changes may occasion the need for additional time for sources to study the possibility of different control and monitoring strategies than would have been considered if we had not amended the 2011 CISWI rule. New complia nce strategies may require time to implement. New engineering studies may be needed, potential suppliers identified, a new bidding/procurement process undertaken and the appropriate construction and operating permits obtained. Significant plant redesign, i n the form of new ductwork and new fan design andPage 69 of 527

changes in the main control equipment may be needed. See US EPA, Engineering and Economic Factors Affecting the Installation of Control Technologies for Multipollutant Strategies, October 2002. Depending on the type of control, this normally requires 15

- 27 months. Multiple control systems may take longer. Id. Installation of controls normally occurs at times of unit outages, which will likely end up being at differing times of the year for each of the CISWI subcategories. For example, for
waste

- burning kilns, this would occur during winter months (to coincide with kiln outages during low production seasons). However, for small remote incinerators, facility retrofits would need to occur while road access to th e site is available and climatic conditions allow for construction. Also, small remote incinerators have the additional component of having to increase the footprint of the site to accommodate additional space for control devices and waste segregation faci lities. This additional permitting requirement and construction effort is not something other CISWI subcategories have to face but adds an additional consideration to developing a compliance strategy. In general, though, the differing construction constrai nts for the various subcategories of CISWI likely mean that there will be a wide variety to the rate of progress towards compliance for the differing CISWI sources. Further, commenters have argued that, due to the delay of the final 2011 CISWI rule, uncert ainty onPage 70 of 527

selecting a compliance strategy was created, essentially putting internal compliance implementation activities on hold until the reconsideration was complete. As a result of these considerations, we have finalized extending compliance for all subc ategories of CISWI. Comments on extending the compliance date and our responses to these comments are found in the “Summary of Comments and Responses to the CISWI Reconsideration” document in the CISWI docket. The compliance date for existing CISWI sources subject to standards in this final rule is 5 years after the date of publication of this final rule or 3 years after the state plan is approved, whichever happens earlier. This date is being finalized in order to provide facilities sufficient time to inst all controls or to make other compliance

- related decisions. However, the CAA section 129(f)(2) does require that the promulgated standards be effective “as expeditiously as practicable after approval of a State plan,” so that states have the flexibility to determine that the standards for existing units within their purview may have a compliance date which is less than the allowable 3 years following approval of the state plan. For new sources, the EPA is finalizing the proposed change of the compliance dat e to 6 months after the date of publication of the final reconsideration rule or at startup, whichever is later.Page 71 of 527

9. Definition of Waste

- burning Kiln In the December 23, 2011, reconsideration proposal, we proposed revisions to the definition of “waste

- burn ing kiln” to indicate that the term “does not include a kiln that is feeding

non - hazardous secondary ingredients exclusively into the cold end of the kiln.” In proposing this language, the EPA intended to codify principles set out in a previous action gran ting and denying reconsideration of the NESHAP for Portland cement kilns. See 76 FR 28318, 28322 (May 17, 2011); see also Memorandum “Revised Floors Without Kilns That Would Have Been CISWI Kilns Had the Solid Waste Definition Applied” (EPA, April 25, 2011 ) (which memorandum is summarized in the May 17 Federal Register notice). The May 17, 2011 , notice and April 25, 2011, memorandum state in essence that combustion does not occur in any region of a cement kiln except the hot end and that cement kiln dust ad ded to the hot end of a cement kiln also is not combusted since it is inorganic and essentially inert. The language used at proposal captured some but not all of these principles, since it referred only to the “cold end” of a cement kiln, as pointed out by a number of commenters. The EPA is revising the definition in the final rule to accurately reflect the May 17 preamble and April 25 memorandum discussion of when combustion occurs in a cement kiln. In addition, we are adding the fact that combustion in a cement kiln does also takePage 72 of 527

place in the combustion zone of a precalciner or riser duct burner. One further clarification is appropriate. The May 17, 2011, preamble contains one reference to legitimacy criteria for determining when a secondary material is being recycled. 76 FR at 28322/1

- 2. The threshold issue for determining if a unit is subject to section 129 is whether it “combusts” solid waste material (see section 129 (g)(1)). For cement kilns, this determination does not necessarily turn on legitimacy of recycling, but rather on the nature of the cement kiln process. Consequently, if combustion of solid waste is not occurring, a unit is not a CISWI, irrespective of whether or not legitimate recycling is occurring. 10. Exemption for Other Solid Waste I ncineration (OSWI) Units Following publication of the December 23, 2011, reconsideration proposal, we realized that the CISWI rule did not contain any language to clarify overlap with another CAA section 129 regulation applicable to OSWI units. The CISWI rule already contains exemptions for MWCs, HMIWIs and SSIs, but omitted similar language for OSWI units. Therefore, in this final rule, we are providing language in 40 CFR 60.2020 and 60.2555 that clarifies that incineration units that are subject to 40 CF R part 60 subparts EEEE or FFFF are exempt from the CISWI rule.Page 73 of 527

D. Technical Corrections and Clarifications We are also including some technical corrections and clarifications in the final rule, as outlined below: Operating parameter limits during perfor mance testing

– While we believe it is intrinsic that established operating parameter limits do not apply during subsequent performance testing since they are being confirmed or reestablished during the subsequent testing, we provided language in the propo sed rule in the NSPS to clarify that they are waived during performance testing (40 CFR 60.2145(c)). However, we inadvertently omitted this clarifying language in the emission guidelines so we have added clarifying language in the final emission guidelines at 40 CFR 60.2710(c). Bypass stacks on waste

- burning kilns

– While not included in the final rule text, we are clarifying here that the definition of “bypass stack” in today’s final rule does not have the same meaning as an “alkali bypass” used by some wa ste

- burning kilns that manufacture Portland cement. Clarifying that, consistent with CAA section 129(f)(1), June 4, 2010, is the appropriate new source applicability date in 40 CFR 60.2015(a)(1). Revising the title of Table 2 to subpart DDDD to clarify tha t these emission limits apply to incinerators which are currently subject to CISWI emission limits promulgated in the 2000 CISWI rule. Clarifying that petitions for specific operating limits for control devices not listed in this subpart must be submitted to the Administrator at least 60 days before the performance test is scheduled to begin(40 CFR 60.2115 and 40 CFR 60.2680). Providing definitions of “30

- day rolling average” and “responsible official” to clarify what is meant by these terms. Adding text to the provisions for PM monitoring provisions for ERUs to clarify that the 250 MMBtu/hr threshold is based upon the average annual heat input rate, consistent with how this threshold is applied in the industrial boiler NESHAP. Revising the affirmative defe nse text to clarify that these provisions apply to violations of standards and to further clarify the reporting requirements and criteria for sourcesPage 74 of 527

seeking to assert an affirmative defense (40 CFR 60.2120 and 40 CFR 60.2685). Revising the recordkeeping p rovisions in 40 CFR 60.2175(v) and 40 CFR 60.2740(u) to reflect the categorical non

- waste determination provisions of 40 CFR 241.4. Revising the electronic reporting provisions in 40 CFR 60.2235 and 40 CFR 60.2795 to clarify the timing and mechanism for su bmitting these reports and to be consistent with the electronic reporting language in more recent rulemakings. Revising the definition of “process change” to clarify the intended types of changes that would require re

- testing. Making corrections to the D/F calculation methodologies for toxic equivalency basis and adding calculation methodology provisions for D/F TMB. Revising the definition of “space heater” to clarify applicability for units that meet the requirements of 40 CFR 279. Revising the emission limits for those pollutants for which data available from a similar source was determined to be better suited for calculating the new source limits. Notably, this is the case for NOX for waste

- burning kilns, and for Hg and PCDD/PCDF for ERU

- liquid/gas uni ts. These revisions reflect updates made to emission limits of the selected similar sources. E. Major Public Comments and Responses We have included some of the major comment topics and our responses below in the preamble. All other comments and
responses are provided in the “Reconsideration Response to Public Comments Document” in the CISWI docket. Solid

- fuel ERU Subcategorization Comment: Several commenters support the proposed separate coal and biomass standards for D/Fs, CO, NO x , SO 2 , PM, Cd andPage 75 of 527

Pb. H owever, these commenters further urge the EPA to establish separate standards for HCl and Hg for coal and biomass. Commenters state that the EPA’s recognition that design and operational differences between combustors designed to combust coal and those des igned to combust biomass is evidence to support subcategorizing emission limits for all pollutants. One commenter discussed differences in biomass and coal fuel rank, and the significant boiler design differences in furnace height and volume that exist bet ween units designed to combust different fuel ranks of coal

- fired boiler furnaces. As an example, one commenter noted that a low

- rank coal (high slagging lignite) furnace can be 1.65 times the plan area, and 1.45 times the furnace height, of a similar capa city furnace combusting a high rank coal (medium volatile bituminous). The commenter stated that this large difference exists even among varying grades of coal, with biomass units being fuels of even lower rank than lignite. Therefore, according to the com menter, furnace area and height (and hence, volume) are significantly different between ERUs designed to combust coal and those designed for biomass combustion. The commenter highlighted an analysis of their existing boilers to see the feasibility of subst ituting biomass for coal. The commenter’s results indicated that, due to fundamental design attributes of their coal

- fired units, they could only co

- fire up to 20 percent biomass in thePage 76 of 527

units. The commenter explained that this limitation was due to design issues pertaining to the unit being designed for coal, such as superheater tube spacing, number and location of soot blowers, fouling characteristics of biomass ash and the impact the high moisture levels of biomass fuels have on fan capacity. The commente r stated that these findings further support that coal and biomass are not interchangeable within ERUs and therefore supports subcategorizing emission limits between the two types of unit. The commenter also contended that the EPA acknowledged significant design differences and their impacts on Hg emissions during development of the Utility MACT Final Rule. The commenter urges the EPA to take a similar approach in CISWI. One commenter agreed with differentiation between coal

- fired and biomass ERUs but suppo rted keeping solid

- fuel ERUs together for purposed of HCl and Hg emission limits. Another commenter argued that all of the EPA’s subcategories are unlawful and arbitrary, noting that their reasons for this belief were given in their comments on the 2010 pr oposal. Response: Based on our proposal and follow

- up comments summarized below, the EPA is finalizing separate limits for all nine pollutants for biomass and coal ERUs. We agree with comments concerning differences in moisture content between biomass and coal

- fired units. We reviewed data in the CISWI database and see that the stack gas moisture content of coal

-Page 77 of 527

fired ERUs is around 11.6 percent and is about 19.2 percent for the biomass ERUs. We have considered the technical arguments provided by commenters on CISWI ERUs, other technical differences we have previously considered in our decision to subcategorize ERUs and how these design differences impact pollutant emission characteristics of the ERU. As a result, we have determined that subcategorizing all nine pollutant emission limits between coal and biomass solid

- fuel ERUs is appropriate for the final CISWI rule. One commenter supported the differentiation between coal and biomass, but in keeping HCl and Hg limits together. However, for the reasons given above, we have determined that all nine pollutants should be subcategorized. Contained Gaseous Material Comment: Commenters support the EPA retaining the 2000 CISWI rule’s definition of “contained gaseous material.” Some commenters believe that the EPA s hould expressly include the definition of “contained gaseous material” in the amendatory text to confirm that the definition is back in the CISWI rule. Response: We believe that the commenters misunderstood what the EPA proposed. Specifically, the basis of the reconsideration proposal amendatory text was the 2000 CISWI rule

- not the 2011 CISWI rule

- because the 2011 CISWI rule had not been codified in the CFR pursuant to the Delay Notice.Page 78 of 527

Therefore, by not including the amendatory instruction to delete the definition in the 2000 rule in the proposed reconsideration rule, we proposed to retain the definition as contained in the 2000 CISWI rule. However, as explained above, due to the
vacature vacatur of the Delay Notice, the 2011 CISWI rule is in effect and the definition of contained gaseous material does not appear in that rule. For that reason, we are including the definition of “contained gaseous material” found in the 2000 CISWI rule in today’s f inal rule. Comment: Many commenters who supported the EPA retaining the 2000 CISWI rule’s definition of “contained gaseous material” also urged the Agency to make clear that this definition should apply when interpreting the term “solid waste” under RCRA
. Response: As aforementioned, the Agency is including the definition of “contained gaseous material” found in the 2000 CISWI Rule in today’s final rule. Specifically, the definition of “contained gaseous material” is codified today, consistent with the 2000 CISWI Rule, as meaning, “gases that are in a container when that container is combusted.” 4 CAA section 129(g)(6) states that the definition of “solid waste” shall have the meaning established by the Administrator pursuant to RCRA. We agree that th e definition of contained gaseous materials in the final CISWI rule is consistent with the

4 See 65 FR at 75359 and 75373.Page 79 of 527

interpretation of that term under RCRA for the purpose of defining when non

- hazardous secondary materials are solid wastes when combusted in CISWI units. 5 As discuss ed in more detail in the NHSM portion of the December 2011 reconsideration proposal and in various letters issued by EPA, 6 the NHSM rulemaking did not change any previous EPA position as it relates to whether ``contained gaseous material'' is a solid waste under RCRA." 7 We note, however, that although gases must be “contained” to be solid wastes under RCRA, EPA maintains separate and independent authority under RCRA to regulate certain types of uncontained gases whether or not they themselves are solid wastes (e.g., gases emitted from the management of hazardous waste). 8

5 Note that for the purpose s of CISWI, contained gaseous materials are limited to gases in a container when that container is combusted . This limitation is due to the fact that CAA section 129 is focused exclusively on combustion of non

- hazardous solid wastes. On the other hand, RCRA is focused on more than just combustion of non

- hazardous solid wastes (e.g., treatment, storage, and disposal of hazardous and non

- hazardous wastes); thus, this limitation is inapplicable to RCRA. We also note that the term 'container' as used in thi s definition is broader than the term as used in the hazardous waste regulations (see 40 CFR 260.10, definition of container). Specifically, the term here is not limited to a portable device, but also includes stationary containers. We believe that these interpretations under the CAA and RCRA are consistent. 6 For example, see June 25, 2012 letter from Assistant Administrator Mathy Stanislaus to Paul Noe. A copy of this letter has been placed in the docket for today’s rulemaking. 7 See 76 FR at 80472

- 8047 3. 8 RCRA section 3002(a) directs EPA to establish standards for hazardous waste generators and RCRA section 3004(a) directs EPA to establish performance standards for all facilities that treat, store or dispose of hazardous waste. Both of these provisions grant authority to control gaseous emissions from hazardous waste management as may be necessary to protect human health and the environment. RCRA sections 3004(n), and (o)(1)(B), further direct EPA to regulate air emissions from, respectively, hazardous waste treatment, storage and disposal facilities; and hazardous waste incinerators. The authorityPage 80 of 527

Comment: Some commenters also requested that EPA clarify that landfill gas is not considered to be a “contained gaseous material” and/or a “solid waste” under RCRA. Response: We agr ee with commenters that landfill gases must be in a container when that container is combusted to be considered “contained gaseous material” under today’s final CISWI regulations. However, given that landfill gas is emitted from solid waste (i.e., non

- ha zardous solid waste landfills or municipal waste landfills), EPA has distinct and independent authority under RCRA to regulate this material as part of our authority to regulate solid waste landfills (for example, in order to address the risk of explosions posed by methane emissions per 40 CFR 258.23). 9

provided in RCRA section 3004(q) to regulate fuel produced from hazardous waste also encompasses gaseous fuels (when they are produced from hazardous wastes). The authority provided in RCRA section 3004(u) to control “releases” of hazardous constituents from solid waste management units at a facility seeking a RCRA permit also encompasses gaseous releases (when the gases are hazardous constituents). The authorit y granted under these sections of the statute is independent of EPA’s authorities over solid waste. As an example, EPA has authority to regulate emissions generated during treatment of hazardous waste, including volatilization and incineration of hazardous waste.

9 RCRA Subtitle D gives EPA authority to set standards for non

- hazardous waste disposal facilities, including standards for air emissions. For example, EPA’s criteria for municipal solid waste landfills, established pursuant to RCRA sections 1008 (a)(3), 2002, 4004(a), and 4010(c), generally address air quality by prohibiting the open burning of waste and by setting limits on the concentration of explosive gases (i.e., methane). See also March 6, 1986 Letter from Marcia E. Williams to Mr. H. Lanie r Hickman, Jr., which states, “[W]e believe it is clear that the U.S. Environmental Protection Agency (EPA) has the authority under both Sections 3004(n) and 4004(a) of RCRA, as well asPage 81 of 527

Oxygen Correction During Startup and Shutdown Comment: Commenters generally support allowing the use of uncorrected CEMS data during startup and shutdown. Several
commenters are concerned that the 4 ‐ hour startup and a 1

- hour shutdown period (derived from a single coal fired unit) are not sufficient for all the CISWI unit types and technologies. Other commenters believe there should be no time limitations on shutdown and startups. One commenter, however, be lieves the proposed time limit is appropriate. Some commenters recommend using the Boiler MACT rule approach using load to define when the O 2 corrections do not apply. Commenters also urge the EPA to eliminate the O 2 correction
for all CEM

- measured emissio n limits, not just CO, during startup and shutdown periods. Commenters also support making this allowance available to all types of CISWI unit, not only
ERUs. Response: In today’s final rule, we are retaining the provision that allows sources to use uncor rected CO CEMS data during periods of startup and shutdown. Based on comments and the technical justifications for allowing the use of uncorrected CEMS data identified during the comment period, we are expanding this provision to any pollutant for which co ntinuous compliance

the CAA, to regulate gaseous emissions from hazardous and non

- hazardou s waste landfills.”Page 82 of 527

is being determined using CEMS as explained above in “Section II.C: Summary of Significant Changes Since Proposal.” Particulate Matter Continuous Monitoring Provisions for Large ERUs and Waste

- burning Kilns Comment: Several commenters s upported the EPA’s proposal to remove requirements for PM CEMS (using PS

- 11) for continuous compliance for large ERUs and waste

- burning kilns, stating that PM CEMS usefulness and application issues of these monitors are uncertain. Commenters asserted that, for biomass ERUs and sources with low PM concentration, PM CEMS were not adequate to accurately monitor low PM concentrations. Commenters further contended that PM CPMS are essentially the same thing as PM CEMS, and that there were no clear instructions o n how to “certify” PM CPMS, as was required in the proposed rule. Commenters added that they do not understand how the recording of hourly and 30

- day rolling averages of the output from these monitors will be useful to demonstrate performance or evaluate

c ompliance with a PM limit. One commenter suggested that the EPA remove the PM CPMS requirements altogether for all industrial boilers. Response: We are revising the PM CEMS requirements in the final rule as explained above.Page 83 of 527

In responding to this comment s pecifically, we believe it is useful to review the procedures and acceptance criteria of
PS

- 11, the protocol mandated by the 2011 final CISWI rule. Performance Specification

- 11
PS

- 11 is structured differently than other PSs that apply to validating the performance of gaseous pollutant CEMS. This is primarily because the pollutant, PM, is defined entirely by the test method specified by regulation to measure it. As the industry commenters note, there are no independent standard reference materials for PM concentrations as there are for gaseous pollutants (e.g., NIST traceable compressed gases for validating SO 2 or NO X instrumental measurements). The only reference standard for determining the PM concentration in an air or stack gas sample is the reference test method. In the case of the CISWI final rule, the rule specifies EPA Method 5 for measuring filterable PM concentration (e.g., in mg/dscm). Performance Specification 11 provides procedures and acceptance criteria for validating the performance of sever al types of PM CEMS technologies. Although there are multiple instrument and data reporting operational performance checks in
PS

- 11 that are similar in concept to those for gaseous pollutant CEMS, there is a principal PM CEMS performance requirement that i s distinctly different. That difference is the development of a site

- specific PM CEMS correlation or mathematical responsePage 84 of 527

curve. There are two key procedural elements to developing that correlation. First, PS

- 11 requires that the source conduct stack
test runs using an EPA PM test method (e.g., Method 5) and simultaneously collect corresponding PM CEMS output data. Second, the source must vary the operation of the control device manually in order to produce a range of PM concentrations. Performance Specifi cation 11, section 8.6, requires at least five test runs at each of three different operating conditions (i.e., low, mid and high PM concentrations) for a total of 15 or more test runs that range from 25 to 100 percent of allowable emissions. Then the sour ce must use the test method data and the corresponding PM CEMS output data to develop an equation (i.e., a calculated linear or nonlinear curve) that will be used to define the relationship between the PM CEMS output and the test method measured PM concent rations. Each site

- specific correlation must meet several PS

- 11 acceptance criteria including limits on confidence interval and tolerance interval equating to ±25 percent of the applicable emissions limit. Discussion of Technical Issues In prior comments s ubmitted to the EPA on the PM CEMS requirements for waste

- burning kilns, one issue raised about conducting the testing to meet the PS

- 11 correlation development requirement is the impracticality of varying the emissions fromPage 85 of 527

a FF control device. Many CISWI units subject to the standards use FF control devices. We agree with commenters that there are typically few, if any, physical adjustments one can apply to a FF or to the waste

burning kiln process to change the outlet PM concentration significantly. A F F produces essentially a constant outlet concentration even with changes to the inlet loading or flow (http://www.epa.gov/ttnchie1/mkb/documents/ff

- pulse.pdf). Although PS

- 11 allows some flexibility when control device perturbations are not possible, the r esulting correlation would apply for only the narrow range of concentrations measured during the testing. The result would be that the PM CEMS would be correlated only for a relatively small range of conditions below the applicable compliance limit. This r ange would not necessarily include situations where the standard might be exceeded. Without the ability to calculate emissions should the FF performance change from initial test conditions (e.g., bag leaks begin to develop), such a limited correlation rang e would render the PM CEMS less reliable for calculating long term average concentrations or emissions rates and for verifying compliance. Additionally, it is difficult and resource intensive to modify baghouse control efficiency in a way that is represent ative of normal operations at a waste

- burning kiln.Page 86 of 527

Commenters also cited problems in developing correlations in stack gases with variable PM constituents and physical characteristics when using light scatter or scintillation detection PM CEMS devices. As noted above and in the EPA’s technology background documents (e.g., http://www.epa.gov/ttn/emc/cem/pmcemsknowfinalrep.pdf and http://www.epa.gov/ttn/emc/cem/r4703

- 02

- 07.pdf), the correlations developed for these types of instruments are inherently dependen t on the particle structure, size and other physical characteristics as well as PM mass in the exhaust gases for each site. Put another way, these light

- based PM CEMS produce a signal that can vary when different fuels or raw materials are introduced to th e kilns or ERU even when the FF outlet mass concentration remains unchanged. To the extent that physical characteristics of the PM in the stack remain stable, correlations for light

- based PM CEMS meeting PS

- 11 performance criteria can represent mass rates to the degree of accuracy required by PS

- 11. For example, there are various design structures used in some light

- based PM CEMS devices that can mitigate the effects of changes in the physical aspects of particles on measurement uncertainty. In addition to the type of light effect measured (e.g., Rayleigh or Mie scattering or light scintillation), the detector wavelength and the frequency are design factors that will affect how the PMPage 87 of 527

CEMS responds to small changes in the physical appearance of the
PM.
On this point, we note that if a source owner were concerned about the ability of a light

- based PM CEMS to meet the requirements of PS

- 11 because of variable physical characteristics of particles in the stack, there is at least one other PM CEMS technology ba sed more directly on mass measurement rather than on light scatter or light scintillation characteristics. The currently available Beta gauge technology does not suffer from this particular technical problem. The Beta attenuation PM CEMS, also called Beta gauge, extracts a sample for the stack gas and collects the PM on a filter tape. The device periodically advances the tape from the sampling mode to an area where the sample is exposed to Beta radiation. The detector measures the amount of Beta emitted by the sample and that amount can be directly related to the mass of PM on the filter. The Beta gauge sensitivity or detection limit can be enhanced (i.e., lowered) with greater sample volumes produced from sampling intervals up to an hour or longer. Another PM mass detector projected for greater use as PM CEMS is the TEOM. Often used in measuring ambient levels of PM, the TEOM operates on a basic principle that can be made traceable to NIST laboratory standards. The TEOM can provide a continuous measure of P M mass in a sample extracted from thePage 88 of 527

stack and routed to the detector. Tapered element oscillating microbalance based PM CEMS are not yet commercially available. Commenters identified another factor contributing to the difficulty of meeting PS

- 11 correlat ion requirements for low PM concentrations corresponding to a low applicable emissions limit, as with the promulgated PM standards here for waste

burning kilns and biomass ERUs. We have recently reevaluated the capabilities of the EPA Method 5 for measurin g low concentrations of PM (See the memo “Revision of Estimated Method 5 Detection Limit” in the CISWI docket) and have determined a Method 5 method detection limit of approximately 2 mg/dscm for a
1

- hour test run. The uncertainty of a measurement with Met hod 5 at this PM concentration would be from 50 to 100 percent (i.e., ±1 to 2 mg/dscm). We can determine a PQL using ~3 x method detection limit to reduce that Method 5 measurement uncertainty to ±10 to 20 percent. That means that the PQL for a 1

- hour test run with Method 5 would be approximately 6 mg/dscm ±0.6 to 1.2 mg/dscm. The CISWI PM emissions limit for existing waste

- burning kiln sources is 3.6 mg/dscm, and is 11 mg/dscm for biomass ERUs. The new source limits are the same for waste

- burning kilns but are 5.1 mg/dscm for biomass ERUs. As noted above, PS

- 11 specifies acceptable criteria for a correlation directly related to the applicable emissions limit. For a PM CEMS set up toPage 89 of 527

measure compliance with a 3.6 mg/dscm limit, the inherent uncertainty assoc iated with a 1

- hour Method 5 measurement (±0.6 to 1.2 mg/dscm) would constitute more than half of the ±25 percent of the applicable PS

- 11 acceptance threshold (i.e., ±0.9 mg/dscm) of the mid

- level PS

- 11 correlation test (i.e., the correlation for the middl e of the three PS

- 11 correlation points). Factoring in the inherent PM CEMS response variability and the uncertainty associated with the representative sampling (e.g., PM and flow stratification), we agree with commenters that trying to satisfy PS

- 11 at su ch low concentrations using 1

- hour Method 5 test runs would be problematic. This drawback applies regardless of the type of PM CEMS technology used. As commenters to the Portland Cement NESHAP have noted, one can improve the method detection capabilities o f the Method 5 or other filterable PM test method by increasing sampling volume and run time. For example, a test run time of about 2 hours will improve the Method 5 PQL to about 3 mg/dscm. The measurement uncertainty associated with a 2

- hour test run at 3 mg/dscm would be about ±0.3 to 0.6 mg/dscm. At this level, the uncertainty associated with the PM test method measurements alone would be about half of the correlation limit allowed in PS

- 11. To achieve a PQL of 1 mg/dscm and a measurement uncertainty of about ±0.01 to 0.2 mg/dscm, one would need to conduct a test run of 6 hours or longer. As noted above, the PS

- 11 correlation calculationsPage 90 of 527

would also have to account for any PM CEMS analytical and measurement variability. Using data from longer Method 5 tes t runs will improve the probability of a PM CEMS meeting PS

- 11 correlation requirements but, as commenters note, will also raise practicality concerns without completely resolving the issue. For example, the time to complete 15 1

- hour test runs under three different emissions conditions may be 3 to 6 days of field work, while the time to complete 15 6

- hour test runs under three different emissions conditions will require at least 2 weeks of field work in order to produce and maintain the operating condition s associated with three different emissions rates. Longer test runs lower the variability of Method 5 PM measurements at near detection limit levels from ± 50 percent to below ± 25 percent; however, the variability of Method 5 results at these low levels r epresents a significantly larger portion of the ± 25 percent correlation requirement of PS

- 11 than would Method 5 data collected at higher PM concentrations. Method 5 measurement uncertainty becomes increasingly greater with lowering PM concentration and
t hus reference measurement variability hinders the PS

- 11 correlation process the most for the best performing sources. Thus, the ultimate result might still lack certainty and would also pose the most difficulty and uncertainty to those sourcesPage 91 of 527

with lower P M concentrations (potentially disadvantaging more efficient operators). Although longer Method 5 test runs and longer beta gauge sampling times reduce difficulties with PS

- 11 correlation for a PM CEMS, the EPA believes that this correlation will not be
tec hnically achievable for a significant number of waste

- burning kiln and biomass ERU sources, a result in part due to the Method 5 PM emissions measurement variability at the low concentrations necessary to maintain compliance with the standard. The PM CEMS correlations then become approximations more qualitative than quantitative with high levels of uncertainty at low concentrations (i.e., the correlations do not meet PS

- 11 requirements). This characteristic exists regardless of the type of PM CEMS technolog y used by the source since it involves variability not only of the PM CEMS but also the Method 5 test data, variability of raw material and additive feeds to the
waste

- burning kiln, and the changing particle sizes, shapes, and density with process operatio ns (e.g., mill on versus mill off, type of fuel being used in the ERU). Making PM CEMS work at low concentrations (<10 mg/dscm) at
waste

- burning kiln and biomass ERU sources is not impossible; although, to expect that correlations would be achievable at al l low emissions sources would be unrealistic. Additionally, the technical limitations do not mean that PM CEMS cannot be used toPage 92 of 527

monitor for compliance. A PM CEMS that does not meet the EPA correlation requirements can still produce data indicative of
tren ds and changes in emissions control. Particulate Matter CEMS technology can be effective in monitoring control device performance (see, e.g., 77 FR 9371 (February 16, 2012)) where the EPA established PM CPMS parametric operating limits for electric utility steam generating units. A monitoring approach alternative to PM CEMS and PS

- 11 To address technical issues associated with PM CEMS meeting
PS

- 11 correlation requirements at low PM emissions concentrations from waste

- burning kilns and biomass ERUs, the im practicability in perturbing FF emission rates to establish PS 11 correlation curves, and the potentially variable PM emissions characteristics expected from waste

- burning kilns, the EPA is finalizing the change of the compliance basis for the PM emissions limit from PM CEMS. For monitoring continuous compliance, the rule requires PM CEMS equipment but, as explained below, that equipment would be used for continuous parametric monitoring rather than for direct measure of compliance with the numerical PM emi ssions limit. Specifically, this final rule recognizes the value of PM monitoring technology sensitive to changes in PM emissions concentrations and use of such a tool to assure continued good operation of PM control equipment. This approach avoids the PMPage 93 of 527

CEMS calibration (i.e., PS

- 11 correlation). Therefore, the EPA is including provisions that a site

- specific parametric operating limit be established during the performance test, that there be continuous monitoring of that parametric limit using a PM CPMS, that an exceedance of that site

- specific operating limit be reported as a deviation and trigger immediate corrective action and a Method 5 performance test within 45 days. In the May 2012 Proposed National Emission Standards for Hazardous Air Pollutants f or the Portland Cement Manufacturing Industry and Standards of Performance for Portland Cement Plants The EPA proposed the use of PM CPMS for continuous monitoring of PM emissions as a 30

- day rolling average established by identifying the average PM CPMS r esponse corresponding to the highest 1

- hour PM compliance test. Failure to meet this 30

- day rolling average would result in retesting. Industry commented that this requirement would trigger unnecessary retests for many facilities, especially for cleaner so urces. This is a legitimate issue. To avoid a perverse result, the EPA is modifying the way PM CPMS operating limits are established. Sources whose compliance with the PM emission standard are shown to be 75 percent or below the emission limit in the PM me thod 5 compliance test will set their PM parametric operating limit to be a 30

- day rolling average equivalent to that 75 percent level.Page 94 of 527

Sources whose compliance with the PM emission standard are above 75 percent of the emission limit will establish their o perating limit as a 30

- day rolling average equal to the average PM CPMS values recorded during the PM compliance test. It should be noted that this provision does not affect the actual emission limit that must be met. F. What other actions are we taking? In this final action, we are denying requests for reconsideration on all issues contained in the petitioners’ requests for reconsideration that we did not include in the December 23, 2011, proposed rule. The issues for which we are denying reconsideration failed to meet the standard for reconsideration under CAA section 307(d)(7)(B) and we determined that reconsideration was not otherwise appropriate. Specifically, on these issues, the petitioner has failed to show the following: that it was impracticable t o raise their objections during the comment period; or that the grounds for their objections arose after the close of the comment period; and/or that their concern is of central relevance to the outcome of the rules. We have concluded that no clarification s to the underlying rules are warranted for the 19 remaining petitioners’ issues for the reasons set forth in the memorandum titled “Denied CISWI Petition Issues” found in the CISWI docket. The following issues are addressed in that memorandum.Page 95 of 527

Work practi ce standards should be used for startup/shutdowns and malfunctions. Exempt or revise limits for units combusting de minimis amounts of waste. Clarify applicability of CISWI standards to marine vessel units or units located on the outer continental shelf. C larify applicability to temporary or portable units. Reduce performance testing requirements to be more consistent with requirements of other rules. Reconsider elimination of provisions that allow missing CEMS data. Do not include emissions data for combination boiler units. CISWI does not satisfy CAA 112(c)(6) requirements for POM and PCB. MACT floor statistical approach concerns. MACT floor must reflect the average, the UPL is not the same as the average emission level. MACT floor pollutant

- by

- pollu tant approach concerns. Non

- detect methodology is unlawful. Beyond

- the

- floor analysis is unlawful and arbitrary. Compliance cost and wildlife concerns for small remote incinerators. “Refinery gas” definition should be included in the CISWI rule. Clarify th at construction and demolition wood is not a solid waste. G. What are the impacts associated with the amendments? 1. What are the primary air impacts? We have estimated the potential emissions reductions from existing sources that may be achieved through i mplementation of the emission limits. However, we realize that some CISWI owners and operators are likely to determine that alternatives to waste incineration are viable, such as further waste segregation orPage 96 of 527

sending the waste to a landfill or MWC, if avail able. In fact, sources operating incinerators, where energy recovery is not a goal, may find it cost effective to discontinue use of their CISWI unit altogether. Therefore, we have estimated emissions reductions attributable to existing sources complying w ith the limits, as well as those reductions that would occur if the facilities with incinerators and small, remote incinerators decide to discontinue the use of their CISWI unit and use alternative waste disposal options. For units combusting wastes for e nergy production, such as ERUs and waste

- burning kilns, the decision to combust or not to combust waste will depend on several factors. One factor is the cost to replace the energy provided by the waste material with a traditional fuel, such as natural gas . Another factor would be whether the owner or operator is purchasing the waste or obtaining it at no cost from other generators, or if they are generating the waste on

- site and will have to dispose of the materials in another fashion, such as landfills. L astly, these units would have to compare the control requirements needed to meet the CISWI emission limits with those needed if they stop burning solid waste and are then subject to a NESHAP instead. As mentioned before, we have attempted to align the moni toring requirements for similar non

- waste

- burning sources as closely as possible in an effort to make them consistent and to helpPage 97 of 527

sources make the cross

- walk between waste and non

- waste regulatory requirements as simple as possible. The emissions reduction s that would be achieved under this final rule using the definition of solid waste under RCRA and the proposed CISWI emission limits are presented in Table 5 of this preamble. Table 5. Emissions Reductions for MACT Compliance and Alternative Disposal Opti ons for Existing CISWI Using the Emission Limits

Pollutant Reductions

achieved through meeting MACT (ton/yr) Reductions achieved

assuming incinerators and small, remote incinerators use alternative disposal (ton/yr) a HCl 772.2 784.3 CO 20,093 20,058 Pb 2.70 2.71 Cd 1.807 1.809 Hg 0.341 0.344 PM (filterable) 2,397 2,401 dioxin, furans 0.000062 0.000064 NO x 5,292 5,399 SO 2 6,211 6,262 Total 34,771 34,909 a The estimated emission reduction does not account for any secondary impacts associated with alternate disposal of diverted ERU fuel. The EPA expects that many existing CISWI owners and operators may find that alternate disposal options are preferable to complying with the standards for the incinerator and small, remote incinerator subcategories. Our experience with regulations for MWC, HMIWI and, in fact, CISWI, has shown thatPage 98 of 527

negative growth in the source category historically occurs upon implementation of CAA section 129 standards. Since CISWI rules were promulgated in 2000 and have been in eff ect for existing sources since 2005, many existing units have closed. At promulgation in 2000, the EPA estimated 122 units in the CISWI population. In comparison, the incinerator subcategory in this rule, which contains any such units subject to the 2000 C ISWI rule, has 27 units. The EPA is not aware of any construction of new units since 2000 so we do not believe there are any units that are currently subject to the 2000 CISWI NSPS. The revised CISWI rule is more stringent so we expect this trend to contin ue. However, the EPA does recognize that some facilities may opt to replace aging incinerator units with new units where it is cost effective or alternative disposal options are not feasible, as may be the case with some incinerators, or in very remote loc ations. We estimate that there could be one new incineration unit within the next 5 years following this final rule, and possibly five new small remote incinerators within that time. In these cases, we have developed model CISWI unit emissions reduction es timates for these subcategories using the current existing unit baseline, based on average emission concentration values and sizes from our current inventory and the new source emission limits. Table 6 of this preamblePage 99 of 527

presents the model plant emissions re ductions that are expected for new sources.
Table 6. Emissions Reductions on a Model Plant Basis

Pollutant Emission reduction for CISWI Subcategory Model Units (tpy unless otherwise noted) Incinerator Small, remote incinerator HCl 2.62 0.0 CO 0.0 0.25 Pb 0.55 0.11 Cd 0.15 0.019 Hg 0.0026 0.00036 PM (filterable) 103 10.7 D/F (total mass) a 0.0011 0.0

NO x 11.3 0.0 SO 2 5.1 4.5 Total 122 22.0 a D/F estimates are given in lb/yr. We do not anticipate that any new energy recovery or waste

burning kiln units will be constructed and will instead use alternative waste disposal methods or alternative fuels that will not subject them to the CISWI rule. For example, whole tires obtained f rom approved tire management programs and tire

derived fuel from which the metal has been removed is not considered solid waste under the definition of solid waste. Consequently, new cement kiln owners will assess their regulatory requirements under CISWI for burning whole tires or tire

- derived fuel that does not have metals removed against the costs associated with removing the metal or obtaining tires fromPage 100 of 527

an approved source and complying with the applicable NESHAP instead of the CISWI rule. Our research suggests that metal removal is routinely practiced and that several state waste tire management programs are already in place and would most likely be a viable option for new kiln owners so that they would not be subject to the CISWI regulations. Indeed, w e expect that all existing cement kilns that are classified as being waste

- burning solely due to whole tires will, by the effective date for the CISWI standards, find a way to obtain their tires through an approved tire management plan. Likewise, new sourc es could engineer their process to minimize waste generation in the first place or to separate wastes so that the materials sent to a combustion unit would not meet the definition of solid waste to begin with. For waste that is generated, our cost analyses have found that alternative waste disposal is generally available and less expensive. 2. What are the water and solid waste impacts? In our analysis, we have selected the lowest cost alternative (i.e., compliance or alternative disposal) for each facility . We anticipate affected sources will need to apply additional controls to meet the emission limits. These controls may use water, such as wet scrubbers, which would need to be treated. We estimate an annual requirement of 71 billion gallonsPage 101 of 527

per year of ad ditional water would be required as a result of operating additional controls or increased sorbent use. Likewise, the addition of PM controls or improvements to controls already in place will increase the amount of particulate collected that will require d isposal. Furthermore, ACI may be used by some sources, which will result in additional solid waste needing disposal. The annual amounts of solid waste that would require disposal are anticipated to be approximately 25,400 tpy from PM capture and 13,700 tpy from ACI. Perhaps the largest impact on solid waste would come from owners and operators who decide to discontinue the use of their CISWI unit and instead send waste to the landfill or MWC for disposal. Based on tipping fees and availability, we would

ex pect most, if not all, of this diverted waste to be sent to a local landfill. As we discuss above, it may be that a good portion of the incinerators would determine that alternative disposal is a better choice than compliance with the standards. We estimat e that approximately 110,600 tpy of waste would be diverted to a landfill. For new CISWI units, we estimate an annual requirement of 980,000 gallons per year of additional water would be required as a result of operating additional controls. The annual am ounts of solid waste that would require disposal are anticipated to be approximately 6.8 tpy from PM capture and 4.7 tpy from ACI.Page 102 of 527

3. What are the energy impacts? The energy impacts associated with meeting the emission limits would consist primarily of add itional electricity needs to run added or improved air pollution control devices. For example, increased scrubber pump horsepower may cause slight increases in electricity consumption and sorbent injection controls would likewise require electricity to pow er pumps and motors. In our analysis, we have selected the lowest cost alternative (i.e., compliance or alternative disposal) for each facility. By our estimate, we anticipate that an additional 217,400 MW

- hours per year would be required for the additiona l and improved control devices. As discussed earlier, there could be instances where owners and operators of ERUs and waste

- burning kilns decide to cease burning waste materials. In these cases, the energy provided by the burning of waste would need to be replaced with a traditional fuel, such as natural gas. Assuming an estimate that 50 percent of the energy input to ERUs and kilns are from waste materials, an estimate of the energy that would be replaced with a traditional fuel if all existing units stopp ed burning waste materials, is approximately 56 TBtu/yr. For new CISWI units, we anticipate that 94 MW

- hours per year would be required for additional and improved control devices. Since we do not anticipate any new energy recovery orPage 103 of 527

waste

- burning kiln u nits to be constructed, there would be no additional estimate for energy that would be replaced with a traditional fuel. 4. What are the secondary air impacts? For CISWI units adding controls to meet the emission limits, we anticipate minor secondary air i mpacts. The combustion of fuel needed to generate additional electricity and to operate RTO controls would yield slight increases in emissions, including NO x , CO, PM and SO 2 and an increase in CO 2 emissions. Since NO x and SO 2 are covered by capped emission s trading programs, and methodological limitations prevent us from quantifying the change in CO and PM, we do not estimate an increase in secondary air impacts for this rule from additional electricity demand. We believe it likely that the incinerators may elect to discontinue the use of their CISWI unit and send the waste to the landfill or other disposal means. As we discussed in the solid waste impacts above, this could result in approximately 110,600 tpy of waste going to landfills. By using the EPA’s
L andfill Gas Estimation Model, we estimate that, over the 20

- year expected life of a CISWI unit, the resulting methane generated by a landfill receiving the waste would be about 96,400 tons. If this landfill gas were combusted in a flare,Page 104 of 527

assuming typical f lare emission factors and landfill gas chlorine, Hg and sulfur concentrations, the following emissions would be expected: 20 tons of PM; 8 tons of HCl; 16 tons of SO 2 ; 890 tons of CO; 46 tons of NO x ; and 1.4 lbs of Hg. Similar to existing units, we antici pate minor secondary air impacts for new CISWI units adding controls as discussed above. 5. What are the cost and economic impacts? We have estimated compliance costs for all existing units to add the necessary controls and monitoring equipment, and to imp lement the inspections, recordkeeping and reporting requirements to comply with the final CISWI standards. We have also analyzed the costs of alternative disposal for the subcategories that may have alternative options to burning waste, specifically for th e incinerators and the small, remote incinerators that may have an alternative to incineration. In our analysis, we have selected the lowest cost alternative (i.e., compliance or alternative disposal) for each facility. Based on this analysis, we anticipat e an overall total capital investment of $816 million with an associated total annual cost of $271 million ($2008). For comparison, the 2011 final rule, estimated an overall total capital investment of $652 million with an associated total annual cost of $ 232 million ($2008).Page 105 of 527

The annualized cost of today’s final rule are approximately 17% higher than those of the final 2011 CISWI rule. The changes in cost result from revising the inventories of the ERUs, waste

burning kilns, and small remote incinerators as discussed in Section II.C. of this preamble: “Summary of Significant Changes Since Proposal.” Under the rule, the EPA’s economic model suggests the average national market

- level variables (prices, production

levels, consumption, international trade) will not change significantly (e.g., are less than 0.001 percent). The EPA performed a screening analysis for impacts on small entities by comparing compliance costs to sales/revenues (e.g., sales and revenue tests). The EPA’s analysis found the tests
were belo w 3 percent for four of the five small entities included in the screening analysis. In addition to estimating this rule’s social costs and benefits, the EPA has estimated the employment impacts of the final rule. We expect that the rule’s direct impact on employment will be small. For the reconsideration final, the estimated employment changes range between −400 to +900 employees, with a central estimate of +200. We have not quantified the rule’s indirect or induced impacts. For further explanation and disc ussion of our analysis, see the introductory memo and Section 3 of the RIA.Page 106 of 527

For new CISWI units, we have estimated compliance costs for units coming online in the next 5 years. This analysis is based on the assumption that one new incinerator will come onl ine over 5 years and that three new small remote incinerators will come online in the next year, followed by one new small remote incinerator per year for subsequent years. Additionally, it was assumed that each model unit will add the necessary controls, monitoring equipment, inspections, recordkeeping and reporting requirements to comply with NSPS limits. Based on our analysis, we anticipate an overall total capital investment of $9.3 million over 5 years with an associated total annual cost (for 2015) of $2.7 million. 6. What are the benefits? We estimate the monetized benefits of this regulatory action to be $420 million to $1.0 billion (2008$), 3 percent discount rate) in the implementation year (2015). The monetized benefits of the regulatory action at a 7 percent discount rate are $380 million to $930 million (2008$). Using alternate relationships between PM 2.5 and premature mortality supplied by experts, higher and lower benefits estimates are plausible but most of the expert

- based estimates fall betw een these two estimates. 10

10 Roman, et al., 2008. Expert Judgment Assessment of the Mortality Impact of Changes in Ambient Fine Particulate Matter in the U.S. Environ. Sci. Technol., 42, 7, 2268

– 2274.Page 107 of 527

Since the reconsideration proposal, we have made several updates to the approach we use to estimate mortality and morbidity benefits in the PM NAAQS RIAs (U.S. EPA, 2012a,b) 11 , 12 , including updated epidemiology studies, health endpo ints, and population data. Although we have not re

- estimated the benefits for this rule to apply this new approach, these updates generally offset each other, and we anticipate that the rounded benefits estimated for this rule are unlikely to be different than those provided below. More information on these updates can be found in the PM NAAQS RIAs

. A summary of the monetized benefits estimates at discount rates of 3 percent and 7 percent is in Table 7 of this preamble. Table 7. Summary of the Monetized B enefits Estimates For the CISWI NSPS and EG in 2015 (Millions of 2008$) a,b

Pollutant Estimated Emission

Reductions (tpy) Total Monetized Benefits (3% Discount Rate) Total Monetized Benefits (7% Discount Rate) PM 2.5 917 $210 to $510 $190 to $460 PM 2.5 Precursors SO 2 6,262 $180 to $450 $170 to $410 NO x 5,399 $26 to $64 $24 to $58

11 U.S. Environmental Protection Agency (U.S. EPA). 2012a. Regulatory Impact Analysis for the Proposed Revisions to the National Ambient Air Quality Standards for Particulate Matter . EPA

- 452/R

- 12

- 003. Office of Air Quality Planning and Standards, Health and Environmental Impacts Division. June. Available at http:/ /www.epa.gov/ttnecas1/regdata/RIAs/PMRIACombinedFile_Bookmarked.pdf.

12 U.S. Environmental Protection Agency (U.S. EPA). 2012b. Regulatory Impact Analysis for the Final Revisions to the National Ambient Air Quality Standards for Particulate Matter
. EPA

- 452/R

- 12

- 003. Office of Air Quality Planning and Standards, Health and Environmental Impacts Division. December. Available at http://www.epa.gov/pm/2012/finalria.pdf.Page 108 of 527

Pollutant Estimated Emission

Reductions (tpy) Total Monetized Benefits (3% Discount Rate) Total Monetized Benefits (7% Discount Rate) Total $420 to $1,000 $380 to $930 a All estimates are for the implementation year (2015) and are rounded to two significant figures so numbers may not sum across rows. All fine particles are assumed to have equivalent health effects but the benefit

- per - ton estimates vary between precursors because each ton of precursor reduced has a different propensity to form PM 2.5 . Benefits from reducing HAP are not included. These benefits estimates represent the total monetized human health benefits for populations exposed to less PM 2.5 in
2015 from c ontrols installed to reduce air pollutants in order to meet these standards. To estimate human health benefits of this rule, the EPA used benefit

- per - ton factors to quantify the changes in PM 2.5 - related health impacts and monetized benefits based on change s in SO 2 and NO x emissions. These estimates are
calculated as the sum of the monetized value of avoided premature mortality and morbidity associated with reducing a ton of PM 2.5 and PM 2.5 precursor emissions. To estimate human health
benefits derived from reducing PM 2.5 and PM 2.5 precursor emissions, we used the general approach and methodology laid out in Fann, Fulcher, and Hubbell (2009). 13 To generate the benefit

- per - ton estimates, we used a model to convert emissions of direct PM 2.5 and PM 2.5 precursors into

13 Fann, N., C.M. Fulcher, B.J. Hubbell. 2009. “The influence of location, source, and emission type in estimates of the human health benefits of reducing a ton of air pollution.” Air Qual Atmos Health (2009) 2:169

– 176.Page 109 of 527

changes in ambient PM 2.5 levels and another model to estimate the changes in human health associated with that change in air quality. Finally, the monetized health benefits were divided by the emission reductions to create the benefit

- per - ton estimat es. These models assume that all fine particles, regardless of their chemical composition, are equally potent in causing premature mortality because the scientific evidence is not yet sufficient to support the development of differential effects estimates by particle type. Directly emitted PM 2.5 , SO 2 and NO x are the primary precursors affected by this rule. Even though we assume that all fine particles have equivalent health effects, the benefit

- per - ton estimates vary between precursors depending on the lo cation and magnitude of their impact on PM 2.5 levels, which drive population exposure. For example, SO 2 has a lower
benefit

- per - ton estimate than direct PM 2.5 because it does not
form as much PM 2.5 , thus, the exposure would be lower and the
monetized healt h benefits would be lower. It is important to note that the magnitude of the PM 2.5 benefits is largely driven by the concentration response function for premature mortality. Experts have advised the EPA to consider a variety of assumptions, including estimates based on both empirical (epidemiological) studies and judgments elicited from scientific experts, to characterize thePage 110 of 527

uncertainty in the relationship between PM 2.5 concentrations and premature mortality. For this rule, we cite two key empirical studies, the American Cancer Society cohort study 14 and the extended Six Cities cohort stu dy. 15 In the RIA for this rule, which is available in the docket, we also include benefits estimates derived from expert judgments and other assumptions. The EPA strives to use the best available science to support our benefits analyses. We recognize that i nterpretation of the science regarding air pollution and health is dynamic and evolving. After reviewing the scientific literature and recent scientific advice, we have determined that the no

- threshold model is the most appropriate model for assessing the mortality benefits associated with reducing PM 2.5 exposure. Consistent with this recent advice, we are replacing the previous threshold sensitivity analysis with a new LML assessment . While a LML assessment provides some insight into the level of uncertain ty in the estimated PM mortality benefits, the EPA does not view the LML as a threshold and continues to quantify PM

- related mortality impacts using a full range of modeled air quality concentrations.

14 Pope, et al., 2002. “Lung Cancer, Cardiopulmonary Mortality, and Long

- term Exposure to Fine Particulate Air Pollution.” Journal of the American Medical Association 287:1132

- 1141 15 Laden, et al., 2006. “Reduction in Fine Particulate Air Pollution and Mortality.” American Journal of Respiratory and Critical Care Medicine
. 173: 667

- 672Page 111 of 527

Most of the estimated PM

- related benefits in this rule would accrue to populations exposed to higher levels of PM 2.5. Using the Pope, et al., (2002) study, 85 percent of the population is exposed at or above the LML of 7.5 μg/m 3 . Using the Laden, et al., (2006) study, 40 percent of the population is exposed a bove the LML of 10 μg/m 3 . It is important to emphasize that we have high confidence in PM 2.5 - related effects down to the lowest LML of the major cohort studies. This fact is important, because as we estimate PM

- related mortality among populations exposed t o levels of PM 2.5 that are successively lower, our confidence in the results diminishes. However, our analysis shows that the great majority of the impacts occur at higher exposures. Every benefit analysis examining the potential effects of a change in en vironmental protection requirements is limited, to some extent, by data gaps, model capabilities (such as geographic coverage) and uncertainties in the underlying scientific and economic studies used to configure the benefit and cost models. Despite these uncertainties, we believe the benefit analysis for this rule provides a reasonable indication of the expected health benefits of the rulemaking under a set of reasonable assumptions. This analysis does not include the type of detailed uncertainty assessmen t found in the 2006 PM 2.5 NAAQSPage 112 of 527

RIA because we lack the necessary air quality input and monitoring data to run the benefits model. In addition, we have not conducted any air quality modeling for this rule. The 2006
PM 2.5 NAAQS benefits analysis 16 provides a n indication of the sensitivity of our results to various assumptions. It should be emphasized that the monetized benefits estimates provided above do not include benefits from several important benefit categories, including reducing other air pollutants, ecosystem effects and visibility impairment. The benefits from reducing HAP have not been monetized in this analysis, including reducing 20,000 tons of carbon monoxide, 780 tons of HCl, 2.5 tons of lead, 1.8 tons of cadmium, 680 pounds of mercury, and 58 grams of total D/F each year. Although we do not have sufficient information or modeling available to provide monetized estimates for this rulemaking, we include a qualitative assessment of the health effects of these air pollutants in the RIA for this rul e, which is available in the docket. For more information on the benefits analysis, please refer to the RIA for this rulemaking, which is available in the docket. III. NHSM Final Revisions

16 U.S. Environmental Protection Agency, 2 006. Final Regulatory Impact Analysis: PM2.5 NAAQS. Prepared by Office of Air and Radiation. October. Available on the Internet at http://www.epa.gov/ttn/ecas/ria.htmlPage 113 of 527

A. Statutory Authority The EPA is promulgating these regulations u nder the authority of sections 2002(a)(1) and 1004(27) of the RCRA, as amended, 42 U.S.C. 6912(a)(1) and 6903(27). Section 129(a)(1)(D) of the CAA ((42 U.S.C. 7429) directs the EPA to establish standards for CISWIs, which burn solid waste. Section 129(g)(6 ) of the CAA provides that the term “solid waste” is to be established by the EPA under RCRA. Section 2002(a)(1) of RCRA authorizes the agency to promulgate regulations as are necessary to carry out its functions under the Act. The statutory definition of “solid waste” is provided in RCRA section 1004(27). B. NHSM Rule History The agency first solicited comments on how the RCRA definition of solid waste should apply to NHSMs used as fuels or ingredients in combustion units in an ANPRM, which was published in the Federal Register on January 2, 2009 (74 FR 41). We then published a NHSM proposed rule on June 4, 2010 (75 FR 31844), which the EPA issued in final form on March 21, 2011 (76 FR 15456). The March 2011, NHSM final rule codified the standards and procedures for identifying which non

- hazardous secondary materials are “solid waste” when used as fuels or ingredients in combustion units.Page 114 of 527

In October 2011, the agency announced it would be initiating new rulemaking proceedings to revise certain aspects of the NHSM rule. 17 On December 23, 2011, we then published a proposed rule, whic h addressed specific targeted amendments and clarifications to the part 241 regulations (76 FR 80452). These proposed revisions and clarifications were limited to certain issues on which the agency had received new information, as well as targeted revision s that the agency believed were appropriate in order to allow implementation of the rule as the EPA originally intended. 18 As stated throughout the preamble to the proposed rule, the agency was not reopening the entire NHSM rule for reconsideration and woul d not respond to comments directed toward rule provisions that were not specifically identified in this proposal. 19 Therefore, any comments that were submitted outside the scope of the proposal, or for which the EPA did not solicit comment, are not addresse d in this final rule, or in the

17 See October 14, 2011, Letter from Administrator Lisa P. Jackson to Senator Olympia Sno we. A copy of this letter has been placed in the docket for today’s rule (EPA

- HQ

- RCRA

- 2008

- 1873). 18 For more information regarding the intent of the December 23, 2011, proposed rule, see 76 FR 80469. For more information regarding the scope of the proposed rule, see 76 FR 80470

- 80474. 19 For example, see 76 FR 80470: “The EPA is soliciting comment only on these targeted changes and is not reopening any other issues in the final NHSM rule. Comments that go beyond the scope of this narrow RCRA rulemaking will not be addressed by the Agency when it finalizes today’s proposed rule.” See also 76 FR 80474 “As noted above, the intent of this proposal is to identify certain specific aspects of the rule which EPA is reconsidering and on which it is soliciting public comment. The Agency is not reopening the entire rule for reconsideration and will not respond to comments directed toward rule provisions that are not specifically identified in this proposal.” and 76 FR 80482 “The Agency is not considering any change to t he self

- implementing, mandatory nature of the §241.3 standards for individual facilities and will not respond to any comments on this topic.”.Page 115 of 527

Response to Comments document that has been prepared for this final rule. The Agency also notes that even though the NHSM final rule will become effective on [Insert 60 days after promulgation in the Federal Register] , exist ing facilities that currently burn NHSMs will have a substantial amount of time before having to comply with the CISWI standards, as the compliance date for existing CISWI sources subject to CAA 129 standards is 5 years after the date of publication of the CISWI final rule or 3 years after the state plan is approved, whichever happens earlier. In addition, the Boiler MACT rule provides until [insert 3 years from date of FR publication] for existing sources to comply with the standards. We recognize that ne w sources will have to comply with these rules sooner than do existing sources. Thus, we believe that there will be more than adequate time for persons to determine whether or not a NHSM sent to a combustion unit is a solid waste. C. Introduction

— Summar y of Regulations Being Finalized In today’s rule, the EPA is finalizing certain amendments and clarifications to the 40 CFR part 241 regulations on which we have received new information, as well as specific targeted revisions that are appropriate in orde r to allow implementation of the rule as the EPA originally intended. The regulations being issued today are summarized below. The intent of thisPage 116 of 527

summary is to give a brief overview of the revised part 241 regulations. More detailed discussions, including the agency’s responses to comments received on the proposed rule and its rationale for decisions being made in this final action, are included in section III.D of this preamble. In addition, in an effort to aid the regulated community, the EPA is including in the docket for today’s rule an informational redline/strikeout version that identifies the specific changes to the regulatory text, as compared to the March 2011, final rule. 20
1. Revised Definitions In today’s rule, the EPA is finalizing revisions t o the three definitions discussed in the proposed rule: (1) “clean cellulosic biomass,” (2) “contaminants,” and (3) “established tire collection programs.” In addition, based on comments received on the proposed rule, the agency is also finalizing a revise d definition of “resinated wood.” These revised definitions will be codified in 40 CFR 241.2. a. Clean Cellulosic Biomass In today’s action, the EPA is issuing a revised definition of “clean cellulosic biomass” that: (1) makes clear that the list of bioma ss materials are examples within the definition and is not intended to be an exhaustive list; and (2) provides a

20 This document has been titled, “ NHSM 2012 Final Rule Regulation Changes” and is placed in Docket No: EPA

- HQ

- RCR A

- 2008

- 0329.Page 117 of 527

more comprehensive list of clean cellulosic biomass to guide the regulated community. These revisions do not change the agency’s intent under t he March 2011 final rule, but identify additional materials that are “clean cellulosic biomass,” and, thus, are traditional fuels under these regulations. A discussion of relevant comments regarding the definition of clean cellulosic biomass, as well as ou r rationale for making these determinations, can be found in section III.D.1.a of this preamble. b. Contaminants In today’s action, the EPA is issuing a final definition of “contaminants” to clarify what constituents will be considered contaminants for the purposes of the contaminant legitimacy criterion. Revisions include: (1) the replacement of a reference to “any constituent that will result in emissions” with a specific list of constituents to be considered as contaminants based on their status as a pre cursor to air emissions; (2) the removal from the definition of specific CAA section 112(b) and 129(a)(4) pollutants that are not expected to be found in any NHSM or are adequately covered elsewhere in the definition; and (3) the removal of the phrase “inc luding those constituents that could generate products of incomplete combustion” from the definition. A discussion of relevant comments regarding the contaminants definition, as well as our rationale for makingPage 118 of 527

these determinations, can be found in section III.D.1.b of this preamble. c. Established Tire Collection Programs In today’s action, the EPA is finalizing a revised definition of “established tire collection program” in order to account for “off

- specification” (including factory scrap) tires
that are contractually arranged to be collected, managed and transported between a tire manufacturer (including retailers or other parties involved in the distribution and sale of new tires) and a combustor, which is analogous to how scrap tires removed from vehic les are managed. The off

- specification tires are not removed from vehicles 21 and are handled under contractual arrangements which ensure they are not discarded. A description of how the changes to the definition accommodate the management of off

- specificati on tires can be found in section III.D.1.c of this preamble. In addition to the proposed changes, we are revising the definition to specifically include tires that were not abandoned and were received from the general public at tire collection program even ts. A discussion of relevant comments regarding the definition, as well as our rationale for making this determination, can be found in section III.D.1.c of this preamble. d. Resinated Wood

21 “Removal from vehicles” had been a component of the definition.Page 119 of 527

In today’s action, the EPA is issuing a revised definition of “ resinated wood” that includes additional materials in order to be more representative of the universe of resinated wood residuals that are currently used as fuels throughout the wood product manufacturing process. Revisions include: (1) replacing the phras e “containing resin adhesives” with the phrase, “containing binders and adhesives,” and (2) specifically including “off

- specification resinated wood products that do not meet a manufacturing quality or standard” within this definition. A discussion of rele vant comments regarding the resinated wood definition, as well as our rationale for making this determination, can be found in section III.D.3.b of this preamble. 2. Contaminant Legitimacy Criterion for NHSM Used as Fuels In today’s action, the EPA is issu ing in final form a revised contaminant legitimacy criterion for NHSMs used as fuels to provide additional details on how contaminant comparisons between NHSMs and traditional fuels may be made. Revisions include: (1) the ability to compare groups of conta minants where technically reasonable; (2) the clarification that “designed to burn” means can burn or does burn, and not necessarily permitted to burn; (3) the ability to use traditional fuel data from national surveys and other sources beyond a facility’s current fuel supplier; and (4) the ability to use ranges of traditionalPage 120 of 527

fuel contaminant levels when making contaminant comparisons, provided the variability of NHSM contaminant levels is also considered. A discussion of relevant comments regarding the

co ntaminant legitimacy criterion for NHSMs used as fuels, as well as our rational for making these determinations, can be found in section III.D.2 of this preamble. 3. Categorical Non

- Waste Determinations for Specific NHSM Used as Fuels In today’s final rul e, the agency is codifying determinations that certain NHSMs are non

- wastes when used as fuels. Based on all available information, the EPA has determined that the following NHSMs are categorically not a solid waste when burned as a fuel in combustion unit s: (1) scrap tires that are not discarded and are managed under the oversight of established tire collection programs, including tires removed from vehicles and off

- specification tires; (2) resinated wood; (3) coal refuse that has been recovered from legac y piles and processed in the same manner as currently

- generated coal refuse; and (4) dewatered pulp and paper sludges that are not discarded and are generated and burned on

- site by pulp and paper mills that burn a significant portion of such materials wher e such dewatered residuals are managed in a manner that preserves the meaningful heating value of the materials. a. Scrap TiresPage 121 of 527

In today’s action, the agency is adding scrap tires that are not discarded and are managed under the oversight of established ti re collection programs, including tires removed from vehicles and off

- specification tires (including factory scraps), to the categorical list of non

- waste fuels (see 40 CFR 241.4(a)(1)) as proposed. Based on this categorical non

- waste determination, facili ties burning the scrap tires that qualify for the provision will not need to demonstrate that this NHSM meets the legitimacy criteria on a site

- by

- site basis. Further, the addition to the new categorical non

- waste provision at 40 CFR 241.4(a)(1) eliminated the need for the previous scrap tire provision at 40 CFR 241.3(b)(2)(i), 22 which has been removed and reserved in today’s final rule. A discussion of relevant comments regarding the scrap tire provision, as well as our rationale for making this determinati on, can be found in section III.D.3.a of this preamble. b. Resinated Wood In today’s action, the agency is listing resinated wood as

a non - waste fuel in 40 CFR 241.4(a)(2), as proposed. The EPA has

22 The scrap tire provision in the 2011 NHSM final rule is now removed and the section reserved in today’s final rule: “(b) The following non

- hazardous secondary materials are no t solid wastes when combusted: (2) The following non

- hazardous secondary materials that have not been discarded and meet the legitimacy criteria specified in paragraph (d)(1) of this section when used in a combustion unit (by the generator or outside the control of the generator): (i) Scrap tires used in a combustion unit that are removed from vehicles and managed under the oversight of established tire collection programs.”Page 122 of 527

evaluated resinated wood and, based on all available info rmation, including consideration of the legitimacy criteria, as well as other relevant factors, has determined that resinated wood is not a solid waste when used as a fuel. Based on this categorical non

- waste determination, facilities burning resinated woo d residuals as a fuel will not need to demonstrate that this NHSM meets the legitimacy criteria on a site

- by

- site basis. Further, the addition of this categorical non

- waste determination (40 CFR 241.4(a)(2)) eliminated the need for the previous resinated wood provision at 40 CFR 241.3(b)(2)(ii), 23 which has been removed and reserved in today’s final rule. A discussion of relevant comments regarding the categorical non

waste determination for resinated wood, as well as our rationale for making this determina tion, can be found in section III.D.3.b of this preamble. c. Coal Refuse In today’s action, the agency has determined that coal refuse that has been recovered from legacy piles and processed

23 The resinated wood provision in the 2011 NHSM final rule is now removed and the section reserved in today’s final rule: “(b) The following non

- hazardous secondary materials are not solid wastes when combusted: (2) The following non

- hazardous secondary materials that have not been discarded and meet the legitimacy criteria specified i n paragraph (d)(1) of this section when used in a combustion unit (by the generator or outside the control of the generator): (ii) Resinated wood used in a combustion unit.”Page 123 of 527

in the same manner as currently

- generated coal refuse, is a non

w aste fuel in 40 CFR 241.4(a)(3). This determination is based on the fact that: (1)legacy coal refuse processed in the same manner as currently

- generated coal refuse meets the definition of processing (as codified in 40 CFR 241.2); and (2)the EPA’s

assessme nt that such materials meet the legitimacy criteria for fuels (as codified in 40 CFR 241.3(d)(1)) when compared to currently

- generated coal refuse, which the agency considers to be within the definition of a traditional fuel (as codified in 40 CFR 241.2). Based on this categorical non

- waste determination, facilities burning these materials as a fuel will not need to demonstrate that this NHSM meets the legitimacy criteria on a site

- by

- site basis. A discussion of relevant comments regarding the categorical n on - waste determination for coal refuse that is recovered from legacy piles and processed, as well as our rationale for making this determination, can be found in section III.D.5.b of this preamble. d. Pulp and Paper Sludge In today’s action, the EPA has de termined that dewatered pulp and paper sludges that are not discarded and are generated and burned on

- site by pulp and paper mills that burn a significant portion of such materials where such dewatered residuals are managed in a manner that preserves the m eaningful heating value of the materials are non

- waste fuels in 40 CFRPage 124 of 527

241.4(a)(4). This determination for pulp and paper sludge as a categorical non

- waste represents the agency’s finding, after balancing the regulatory legitimacy criteria with other relev ant factors, that the burning of this material is an integral part of facility operations, and as described in the categorical listing is for energy recovery and not discard. Based on this categorical non

- waste determination, facilities meeting the descrip tion of this determination and burning these materials as a fuel will not need to demonstrate that this NHSM meets the legitimacy criteria on a site

- by

- site basis. A discussion of relevant comments regarding the categorical non

- waste determination for pulp and paper sludges, as well as our rationale for making this determination, can be found in section III.D.5.a of this preamble. 4. Rulemaking Petition Process for Other Categorical Non

- Waste Determinations (40 CFR 241.4(b)) In today’s final rule, the agenc y is finalizing a rulemaking petition process that provides persons with an opportunity to submit a rulemaking petition to the Administrator, seeking a categorical determination for additional NHSMs to be listed in 40 CFR 241.4(a) as non

- waste fuels. The p rocess for submitting a rulemaking petition to the agency, as well as the factors a successful application must include, is listed in 40 CFR 241.4(b). A discussion of relevantPage 125 of 527

comments regarding the petition process for the categorical listings, as well as our rationale for the categorical rulemaking petition process, can be found in section III.D.4 of this preamble. 5. Streamlining of the 40 CFR 241.3(c) Non

- Waste Determination Petition Process In today’s final rule, the agency is streamlining the non

wast e determination provisions under 40 CFR 241.3(c). The public participation process was streamlined to accommodate petitions that apply to multiple combustors. In particular, the regulations were adjusted to indicate that the appropriate office in the EPA h eadquarters may handle petitions that cross multiple regions. Furthermore, if a determination is made that the NHSM is a non

- waste, the decision will be retroactive and apply on the date the petition was submitted. A discussion of relevant comments regardi ng the streamlining of the 40 CFR 241.3(c) non

- waste determination petition process, as well as our rationale for the streamlining changes made to the non

- waste determination process, can be found in section III.D.6 of this preamble. 6. Revised Introducto ry Text for 40 CFR 241.3(a) In today’s final rule, the agency has decided not to revise the introductory text of 40 CFR 241.3(a). In its December 2011 proposed rule, the EPA considered revising this introductoryPage 126 of 5 27

text to state that NHSMs are “presumed to be ” solid wastes, rather than “are” solid wastes. While the proposed change was not expected to be a substantive change to the rule, but merely a reflection of the record at the time, it did engender some confusion among commenters. Based on the comments rec eived, we have decided not to issue revised introductory text 40 CFR 241.3(a) and, thus, this section will continue to read as codified in the March 2011 NHSM final rule. A discussion of relevant comments regarding the introductory text of 40 CFR 241.3(a), as well as our rationale for this decision, can be found in section III.D.7 of this preamble. D. Comments on the Proposed Rule and Rationale for Final Decisions In this section, the EPA addresses major comments the agency received regarding the targeted revisions that were proposed to certain part 241 provisions in the December 23, 2011, proposal. In discussing the comments received on the proposal, we also provide the rationale for making the revisions that are finalized in today’s action. As previously discussed, the agency specifically stated that it would not address comments that go beyond the scope of this narrow RCRA rulemaking. 1. Revised Definitions a. Clean Cellulosic BiomassPage 127 of 527

The proposed rule suggested revising the March 2011 definition of “cle an cellulosic biomass” to list additional examples of biomass materials that are appropriately included within this definition. These fuels are not secondary materials or solid wastes unless discarded. Clean biomass is “biomass that does not contain contam inants at concentrations not normally associated with virgin biomass materials” (codified in 40 CFR 241.2). This regulatory revision would not change the agency’s intent under the March 2011 final rule, but would identify additional materials that are “cle an cellulosic biomass,” and, thus, would be a traditional fuel under these regulations. While the list of clean biomass materials is only illustrative and not exhaustive, it is now more comprehensive than the list that appeared in the definition included i n the 2011 NHSM final rule. One of the materials within the definition is clean C&D wood. In light of some confusion in comments regarding C&D wood, the EPA is clarifying the meaning of the term in the definition of “clean cellulosic biomass.” Construction & demolition wood actually may be placed into different categories, depending upon its origin. In accordance with the traditional fuels definition in section 241.2, clean C&D wood could be combusted as a traditional fuel if it does not contain contaminan ts at concentrations not normally associated with virgin wood.Page 128 of 527

However, the final NHSM rule also addressed C&D wood that may contain contaminated material. 24 There is no need to repeat these discussions here, except to clarify what the final rule
means. In general, contaminated C&D wood that has been processed to remove contaminants, such as lead

- painted wood, treated wood containing contaminants, such as arsenic and chromium, metals and other non

- wood materials, prior to burning, likely meets the processin g and legitimacy criteria for contaminants, and thus can be combusted as a non

- waste fuel (see further discussion in response to comments below). Comment: One commenter noted that the EPA's specific inclusion of "untreated wood pallets" implicitly accepts that small amounts of non

- wood material inherent to the pallets, such as screws or plastic fasteners, do not render those materials solid waste under the rule, and de minimis amounts of non

biomass material would not require these types of materials to be burned in incinerators under the CISWI rule. Another commenter requested that the EPA reconsider use of the word “untreated” when referring to wood pallets. The commenter argues that the EPA does not define the word “untreated” and its use could create confusion. Rather, the commenter recommends that “untreated” be replaced with the word “clean,” which is an adjective used in the definition to

24 See 76 FR 15485.Page 129 of 527

distinguish other materials (e.g
. , “ clean construction and demolition wood”). Response: Wood pallets are refurbi shed or recycled for other uses by pallet recyclers. When the useful life of the pallet is finished, the recyclers typically remove the small amount of non

- wood material inherent to pallets that would inhibit combustion, such as screws or plastic fasteners . The pallets are then ready for use as fuel, and the non

- wood material would not impact whether the material can be burned in combustion units that meet the CAA section 112 emission standards. The agency is not aware of instances where the pallets are use d as fuel directly by the original users and non

wood material is left remaining in the pallet. Such pallets would not be considered clean cellulosic biomass under the rule. With respect to the other comment, the EPA does not agree, that the term “untreat ed” wood pallet be replaced with the term “clean” wood pallet. The term “clean” is defined in the traditional fuels definition as described above, and applies to all the materials listed in the definition of clean cellulosic biomass, which includes untreat ed wood pallets. It would be redundant to define “clean” biomass as including “clean” wood pallets. The point is that some wood pallets may contain treated wood, such as CCA treated wood, and inclusion of the term “untreated” with wood pallet would help em phasize that suchPage 130 of 527

treated wood would not be considered “clean” under the definition of clean cellulosic biomass.
Comment : Several commenters indicated that the definition of clean cellulosic biomass remains ambiguous because it continues to include the caveat that: “Clean biomass is biomass that does not contain contaminants at concentrations not normally associated with virg in biomass materials.” Thus, notwithstanding the EPA’s attempt at expanding the definition of clean cellulosic biomass, the commenters believed that this sentence should be removed because it perpetuates uncertainty. It is not clear what comparisons are pe rmissible and what concentration levels are appropriate. The commenters also indicated that this sentence perpetuates the EPA’s erroneous interpretation of its authority under RCRA . A material does not become a waste when burned for energy recovery just because it may contain contaminants

-- prior to combustion

-- not normally associated with virgin biomass. It becomes a waste only if it is combusted for the purpose of disposal, rat her than for energy recovery. Response: The agency disagrees with the commenter that defining the term “clean” leads to ambiguity in identifying which materials are clean cellulosic biomass. On the contrary, defining the term “clean” is meant to ensure th at contaminated cellulosic material being burned, such as lead

- painted wood orPage 131 of 527

arsenic treated wood, does not introduce contaminants (as defined in 40 CFR 241.2) not normally associated with virgin biomass materials. The agency wishes to emphasize, howeve r, that determinations that the cellulosic biomass used as a fuel or ingredient is clean, do not presuppose any testing of contaminant levels. Persons can use expert or process knowledge of the material to justify decisions regarding presence of contaminan ts. With respect to the comment that burning of contaminated material does not make it a waste, the agency has not reopened this issue for this rule and stands by its responses in the rulemaking record for the March 2011 final rule. 25
Commen t: One comment er provided the example of whether treated seeds that contain additives are considered contaminants in virgin biomass. These additives may not be found in virgin seeds but are not harmful at the concentrations found in the

25 See, for example, 76 FR 15523

- 4: “If a non

- hazardous seconda ry material contains contaminants that are not comparable to those found in traditional fuels, and those contaminants are related to pollutants that are of concern at solid waste combustion units, then it follows that discard is occurring. The contamina nts in these cases could not be considered a normal part of a legitimate fuel and are being discarded, either through destruction in the combustion unit or through releases into the air. Units that burn such materials are therefore most appropriately regu lated under the CAA section 129 standards for solid waste incinerators.” See also 76 FR 15485, which states: “[A]s we have noted previously, the criterion or test for determining whether a material is burned as a waste or a commodity fuel is the level of the contaminant in the secondary material itself

– that is destruction of contaminants indicates a waste treatment activity rather than a commodity fuel.”Page 132 of 527

seeds. The commenter questioned w hether any concentration above “natural” (concentration levels found in virgin material), especially when combusted as fuel, would be prohibited and require additional waste regulation. Response: Seeds may be treated with pesticides and hormones to aid in germination. Such chemicals do not generally include contaminants as defined in section 241.2; therefore, such treated seeds would be considered clean cellulosic biomass.
Comment : Several commenters indicated that, as part of the EPA’s changes in the defi nition of clean cellulosic biomass, it is proposing to consider treated or painted wood the same as “virgin” wood if it has lower than de minimis levels of contamination. While adoption of numerical values in the rule would require additional provisions fo r measurements and would require additional notice, the commenter believes that such clarity is important for successful implementation of the rule. Such limits would be applied to “clean” C&D material, for instance, among other potential fuel types. The t erm de minimis is not defined numerically in the proposed rule and the commenters argue that without a specific numerical de minimis limit, sources would not have a clear understanding of whether they fall under the CISWI or hazardous waste incinerator rul es. The commenter recommended that the EPA define and allow for public comment on the levels associated with the term de minimisPage 133 of 527

and base the de minimis levels on contaminant levels found in typical “virgin” wood. Response : Regarding the addition of a def inition for de minimis amounts of contaminants remaining in processed wood, the agency does not believe it appropriate to identify specific concentration levels. Rather, the agency interprets de minimis as that term is commonly understood; i.e., insignific ant or negligible amounts of contamination such as small wood sliver containing lead paint). As indicated above, there also appears to be confusion among commenters regarding two different categories of C&D wood

- - “clean C&D wood” that is a traditional fuel, and C&D wood that has been processed to remove contaminants. Under the 2011 NHSM final rule, C&D wood that has been processed to remove contaminants, such as lead

- painted wood, treated wood containing contaminants, such as arsenic and chromium, meta ls and other

non - wood materials, prior to burning, likely meets the processing and legitimacy criteria for contaminants, and thus can be combusted as a non

- waste fuel but would not be considered “clean C&D wood.” Such C&D wood may contain de minimis amount s of contaminants and other materials provided it meets the legitimacy criteria for contaminant levels. To meet the contaminant legitimacy criterion, concentration levels of contaminants in the processed C&D wood must be comparable to orPage 134 of 527

less than the leve ls in the traditional fuel the unit was designed to burn, whether wood or another traditional fuel (see section III.D.2 for a discussion on contaminant comparisons). In contrast, “clean C&D wood” is a traditional fuel that does not require processing and m eets the definition of “clean” (i.e., C&D wood that does not contain contaminants at concentrations not normally associated with virgin biomass (wood)). Thus, de minimis amounts of contaminants and other material appropriate for processed C&D wood would no t be appropriate for clean wood that is a traditional fuel.
Comment : One commenter argued that states should have discretion about how to determine appropriate fuel quality but it should be no less stringent than limits set by the EPA. There should be a di stinction between de minimis levels of contamination in C&D wood and a fuel quality standard. Response : We do not necessarily disagree with the commenter. That is, as discussed in the final rule, part 241 does not preempt a state’s statutory or regulatory standards and states are free to establish fuel quality standards for C&D wood. However, we would also note that as solid waste is defined by the EPA under RCRA, such state standards would not necessarily impact the status of the material as it relates to which combustion units are subject to CAA section 129 (56 FR 15546).Page 135 of 527

b. Contaminants The December 2011 rule proposed to clarify what constituents will be considered contaminants by making the definition of “contaminants” more specific. However, the
propo sal maintained the fundamental approach

— and was intended to cover the same constituents

— as the March 2011 final rule. The March 2011 final rule and the December 2011 proposed rule identified the same three ways a chemical can be labeled a contaminant. Fir st, it may be one of the 187 HAP currently listed in CAA section 112(b); second, it may be one of the nine pollutants listed under CAA section 129(a)(4); and third, it may be one of a handful of chemicals whose combustion will result in the formation of li sted CAA section 112(b) and section 129(a)(4) pollutants ( e.g. , sulfur that will result in SO 2 ). The definition proposed in December provided clarification by listing the constituents that belong to the third group. 26 Specifically, the proposed revision re placed a potentially ambiguous reference to “any constituent that will result in emissions” with the four specific elements the agency intended to be considered as contaminants (chlorine, fluorine, nitrogen, and sulfur) based on their status as a precursor to air emissions. In all four cases, the CAA pollutant itself (e.g.,

26 Eleven metal elements directly identified in CAA section 112(b) were also listed in the proposed de finition to provide the regulated community with a complete list of elements that are considered “contaminants” under the rule.Page 136 of 527

SO 2 ) is not likely to be present in the NHSM prior to combustion, and the only way to measure constituents prior to combustion “that will result in emissions” of that pollutant is
to mea sure a known precursor (e.g., sulfur) instead. For each of the four precursor elements listed as contaminants in the proposal, the expected fate for the precursor during combustion is formation of the aforementioned pollutant and the precursor makes no sub stantive contribution to the material’s value as a fuel. For these reasons, the agency proposed to specifically identify chlorine, fluorine, nitrogen, and sulfur as contaminants in place of HCl, HF, NO x and SO 2 . By limiting the list of precursors considere d contaminants to these four elements, the revised definition also made clear that the agency did not intend to include other elements present in contaminants (such as hydrogen and carbon) as contaminants themselves. The December 2011 proposed rule also r emoved from the definition of contaminants those pollutants in CAA sections 112(b) and 129(a)(4) that we do not expect to find in any NHSM. Specifically: Chlorine gas, HCl, HF, NO x , and SO 2 were removed from the definition because they are unlikely to be f ound in NHSMs prior to combustion and had been replaced by the elements chlorine, fluorine, nitrogen and sulfur as discussed above; Fine mineral fibers were removed because they are releases from the manufacturing and processing (not combustion) of non - com bustible rock, glass or slag into mineral fibers;Page 137 of 527

Particulate matter and coke oven emissions were removed because they are products of combustion unlikely to exist in NHSMs prior to combustion; Cresol isomers m

- cresol, o

- cresol, and p

- cresol were removed b ecause the listed pollutant cresols/cresylic acid includes these three isomers; Xylene isomers m

- xylene, o

- xylene, and p

- xylene were removed because the listed pollutant xylenes includes these three isomers; and Diazomethane, white phosphorus, and titanium tetrachloride were removed because their high reactivity makes their presence in NHSMs very unlikely. In addition, two phrases present in the March 2011 final rule “contaminants” definition were not included in the December 2011 proposed rule definition. First, the phrase concerning constituents “that will result in emissions of the air pollutants” was removed since the regulated community had expressed confusion that in determining whether or not a NHSM meets the contaminant legitimacy criterion, emission s from the combustion unit were to be evaluated. The EPA disagreed and directed readers to the language in sections 241.3(d)(1)(iii) and 241.3(d)(2)(iv). These sections state that contaminant comparisons are based on the presence of contaminants in the
NHS M (or products made from NHSMs in the case of ingredients), not the resulting emissions. The proposed revision also inserted the phrase “prior to combustion” into the contaminants definition to further emphasize that the NHSMs, not the emissions that resul t from NHSMs, are to be evaluated when conducting contaminant comparisons. The rationale for evaluatingPage 138 of 527

the NHSM, and not emissions, can be found in the record for the March 2011 final rule. 27 The proposal merely added language to ensure the rule is consist ent with the agency’s intent. The second phrase proposed to be removed from the March 2011 final rule definition was a reference to “those constituents that could generate products of incomplete combustion,” also referred to as PICs. This reference was

rem oved from the definition because it was duplicative and potentially misleading. Specifically, this phrase was not necessary because all PICs that the agency considers air pollutants

— including dioxins, dibenzofurans, PCBs and PAHs

— are listed in CAA sections 112(b) or 129(a)(4) and are thus already included in the “contaminants” definition. More importantly, the phrase was potentially misleading because PIC formation depends heavily on combustion conditions, such as air/fuel ratio and mixing. These conditions are controlled to limit emissions and neither these conditions nor emissions are the subject of this rule. The NSHM itself is the subject of this rule. Thus, the removal of both phrases clarified, but did not alter, the constituents subject to the contami nant legitimacy criterion. The EPA believes that comments have not changed the basis for listing specific precursors to air emissions as contaminants, nor have they changed the basis for either

27 For example, see 76 FR 15524

- 15525.Page 139 of 527

excluding specific constituents from the definition or removin g the references to “that will result in emissions of the air pollutants” and “constituents that could generate products of incomplete combustion” from the definition. Thus, the EPA is adopting the reasoning from the proposal and revising the definition of contaminants to incorporate these concepts. The EPA has decided, however, to make several modifications to the regulatory language of the December 2011 proposed rule based on comments received and information in the rulemaking record. First, in the final definition issued today, precursors will only be considered contaminants for NHSMs used as fuels; precursors will not be considered contaminants for NHSMs used as ingredients. Furthermore, precursors will not be considered contaminants if they do not form their corresponding pollutants. Also, opacity has been removed from the contaminants definition. Finally, the phrase “prior to combustion” has not been inserted into the contaminants definition, as had been proposed. Contaminants in NHSMs used as fuel in combustion units must still be evaluated prior to combustion, and persons must still evaluate the NHSM itself (not emissions), but the agency has determined that the topic of when to evaluate contaminants is more appropriate to address in the legitimacy cr iteria than in the contaminants definition.Page 140 of 527

Additional reasoning for keeping the rule provisions as proposed, and for any modifications to the proposed language, are described in the following responses to comments. Comment: Several commenters stated that the definition of contaminants should focus on contaminants released as combusted emissions. One commenter argued that contaminants should be compared between emitted contaminants and emission standards. A second commenter reiterated previous comments tha t contaminant levels should be related to the air emissions and not the content of the material. For support, commenters cited that the EPA reversed its position in the proposal by using possible air emissions as the basis for establishing what contaminant s need to be compared. Response: The EPA has previously stated that contaminant levels before and after combustion can be important indicators of legitimacy and it maintains the position from the March 2011 final rule that non

- waste fuels must be similar i n composition to traditional fuels prior to combustion. 28 Because combustion and emission control processes can destroy or remove contaminants, a comparison of emissions profiles alone only tells one how well the combustion unit is operating, not whether

28 See 76 FR 15525.Page 141 of 527

th e NHSM is being used as a legitimate non

- waste commodity fuel. 29 The EPA disagrees with the comment that the agency reversed its position on the consideration of emissions in the proposal by including precursors to air emissions as contaminants. The
agenc y notes that a difference exists between comparing “emissions” and comparing “contaminants that will result in emissions,” the exact language used in the March 2011 final rule. The EPA has clarified what it intended by “contaminants that will result in emi ssions” in today’s final action. This clarification involves the listing of specific precursors known to result in emissions of air pollutants when combusted; it also involves the removal of specific pollutants known not to be present in NHSMs.
Comment: T wo commenters expressed concern that the proposed definition of contaminants conflicted with the contaminant legitimacy criterion for NHSMs used as ingredients in combustion units. Commenters stated that both the definition of contaminants, as proposed, an d the existing contaminant legitimacy criterion for ingredients were clear when read separately but were contradictory when taken together. The commenters encouraged the EPA to clarify the regulatory text. Specifically, the commenters noted that for ingred ients,

29 Id.Page 142 of 527

contaminants could not be evaluated prior to combustion and then used to compare products produced using NHSMs to products produced using traditional materials. Response: The EPA has decided not to include language from the December 2011 proposed r ule in the definition of contaminants that emphasized when NHSM contaminant levels are to be evaluated ( i.e
. , before or after combustion). While the proposed additional language made clear that NHSMs used as a fuel were to be evaluated for contaminants “pr ior to combustion,” the agency agrees with the two commenters who argued that the proposed language conflicts with the contaminant legitimacy criterion for ingredients . The contaminant criterion for ingredients requires comparisons to be made between produ cts produced with and without NHSMs, but until the products exist, they cannot be compared. As such, the agency has decided not to adopt the proposed additional language addressing when contaminants are to be evaluated in the definition of contaminants . T he agency proposed similar language in the December 2011 rule addressing this topic in the contaminant legitimacy criterion and the agency is adopting that language in today’s final rule. The agency has determined that the legitimacy criteria themselves (4 0 CFR 241.3(d)(1)(iii) for fuels and 40 CFR 241.3(d)(2)(iv) for ingredients) are more appropriate places to address this topic.Page 143 of 527

The EPA has also decided to add language to the definition of contaminants clarifying that the specification of particular
precu rsors to air emissions ( i.e. , chlorine, fluorine, nitrogen and sulfur) as contaminants does not apply to the contaminant legitimacy criterion for ingredients. As identified by the commenters, the contaminant criterion for ingredients requires comparisons t o be made between products produced with and without NHSMs. Products can only be compared after combustion has occurred, at which point there will be no benefit to measuring levels of precursors. The agency also notes that it does not envision a situation where NHSMs containing chlorine, fluorine, nitrogen or sulfur would be used as ingredients in such a way that would emit higher levels of HCl, HF, NO x or SO 2 than would be emitted using traditional ingredients without the material being considered a solid waste. In all cases, ingredients must provide a valuable contribution to the product being produced, and that product must itself be valuable, in order to not be considered a solid waste. For an ingredient to provide value, the agency expects the ingredie nt to remain in a product rather than be destroyed or released via emissions. This is a key reason why the contaminant legitimacy criterion for ingredients focuses on products ( i.e. , toxics along for the ride) rather than emissions. Furthermore, the legiti macy criteria for ingredientsPage 144 of 527

cannot be used to avoid the legitimacy criteria for fuels if the material is being used for both purposes. Comment: Several commenters questioned the rationale for including precursors to air emissions as “contaminants” under the proposed revised definition. Some indicated that the concept is far removed from the true meaning of “discard,” with one comment stating that the EPA has no legal, rational or scientific basis for considering the presence of sulfur or nitrogen in NHSM s as evidence of intent to discard SO 2 or NO x during combustion. To support this argument, the commenter first noted that the EPA has no record basis for assuming that the intent of the combustor is to discard the constituent, rather than to generate energ y. Second, the commenter noted that whether or not a boiler has emissions of regulated air pollutants, such as SO 2 or NO x when it combusts a precursor will depend, not on an intent to discard these pollutants, but on boiler operation and design.
Two comme nters also stated that the preamble discussion on precursors demonstrates how far removed the EPA’s rational for this rulemaking is from the concept of discard. They noted that the EPA is requiring combustors to document and keep records regarding the fact that CO is not present in NHSMs, and, under CISWI, would identify the NHSM as waste if this documentation isPage 145 of 527

not maintained. The commenters failed to see how this has anything to do with a determination that a material is a waste under RCRA. Response: Th e EPA disagrees with these comments. Precursors to emissions of identified air pollutants are important and appropriate to address as contaminants in NHSMs prior to combustion. It is also necessary to tailor the definition of contaminants to the realities of the combustion process, during which precursors present in NHSMs used a fuel

— many of which are solid or liquid

— are transformed into air pollutants. However, the agency agrees with those commenters who argued that the revised definition, as proposed, ma y be too broad with regard to precursors that may not form air pollutants in all cases. For example, if the combustion of nitrogen does not form
NO x in a particular situation, the agency did not intend in its December 2011 proposed rule to consider nitroge n as a contaminant in that particular situation
. 30 The EPA noted in the proposed rule that chlorine, fluorine, nitrogen and sulfur will form pollutants of concern in most circumstances, but the agency does acknowledge that specific technologies and practice s may prevent these transformations from happening in the first

30 See March 16, 2012 Response from James R. Berlow, Director, Pr ogram Implementation and Information Division, EPA’s Office of Resource Conservation and Recovery to Fadi K. Mourad, DTE Energy Services, Inc. A copy of this response letter has been placed in the docket for today’s rulemaking and is also available at http ://www.epa.gov/epawaste/nonhaz/define/index.htm.Page 146 of 527

instance, particularly with regard to nitrogen (one example being the use of Low NO x burners with Over

- Fire Air). Thus, the contaminants definition issued in today’s final rule does not consid er constituents that are normally precursors to CAA section 112(b) or 129(a)(4) pollutants to be contaminants if a specific technology or practice prevents them from forming their corresponding pollutants. The definition codified in 40 CFR 241.2 only inclu des chlorine, fluorine, nitrogen and sulfur as contaminants in cases where “combustion will result in the formation of hydrogen chloride (HCl), hydrogen fluoride (HF), nitrogen oxides (NO x ), or sulfur dioxide (SO 2 ).” When compared to the December 2011

prop osed rule, the only constituents no longer considered contaminants due to this modification are chlorine that will not form HCl during combustion, fluorine that will not form HF during combustion, nitrogen that will not form NO x during
combustion and sulfu r that will not form SO 2 during combustion. This is consistent with the March 2011 NHSM final rule, under which these constituents would not be contaminants when they would not “result in emissions” of CAA section 112(b) or section 129(a)(4) pollutants.
Al though the EPA is not currently aware of any technologies or practices that prevent chlorine, fluorine or sulfur in NHSMsPage 147 of 527

from forming their associated pollutants during combustion (the EPA is aware of such examples with nitrogen), the agency considers it reasonable and appropriate to adopt the same language for all four precursors to allow for future technological advances preventing the transformation of these elements into pollutants during combustion. Comment: One commenter stated that the consideration of precursors to air emissions as contaminants could be used to make the most fundamental of all elements, hydrogen, a contaminant because it is present in nearly all regulated pollutants. The presence of hydrogen in a NHSM could then be

cons idered evidence of intent to discard pollutants that contained hydrogen. Response: Under the proposed contaminants definition, only the specific precursor elements listed (chlorine, fluorine, nitrogen and sulfur) are considered contaminants. The EPA determ ined in the proposal, and adopts as its final decision today, that these are the only four precursors necessary to evaluate when comparing contaminants between NHSMs and traditional fuels. The agency specifically decided not to include hydrogen on this lis t. Whereas combustion of chlorine, fluorine, nitrogen and sulfur typically leads to the formation of CAA section 112(b) or 129(a)(4) air pollutants, combustion of hydrogen typically leads to the formation of water vapor.Page 148 of 527

Comment: Several commenters opposed the inclusion of precursors as contaminants on the ground that the formation of related pollutants depends more on boiler operation and design, process chemistry and feedstock characteristics than on the levels of precursors present in the NHSMs. Response : The EPA recognizes that unit design and operating conditions can impact the transformation of chlorine, fluorine, nitrogen and sulfur into air pollutants. Rather than viewing this as a reason to ignore the pollutants these elements commonly form, the age ncy views this as further evidence why precursor levels must be considered when determining which set of CAA standards

— which in turn regulate unit operating conditions

— should apply. Comment: Two commenters suggested that the EPA follow a different approach for defining contaminants and use a method similar to what the agency used for the used oil specification in 40 CFR 279.11. In each case, the commenter suggested that for NHSMs, the definition of contaminants should be limited to sulfur, nitrogen, chlorin e, Cd, Hg and lead because those are the elements Congress addressed in CAA section 129. This approach, they argued, would be similar to what the EPA did when developing the used oil specifications. The point the commenters wished the agency to draw from t he used oil specification approach is that it addressed elemental species, as opposed toPage 149 of 527

individual compounds. Using sulfur as an example, the commenters reasoned that it is the underlying presence of sulfur

- bearing materials in the NHSMs, as opposed to in dividual sulfur

containing compounds on the section 112(b) list, which effects emissions of SO 2 . Response: The EPA disagrees with the approach outlined by the commenters and has issued a final definition of contaminants based on both the CAA section 112(b ) and the CAA section 129(a)(4) lists, as was proposed. We do agree with the commenters, however, that identifying precursors that will form certain CAA pollutants in the definition of contaminants is appropriate. The approach outlined by the commenters ap pears to be based on two premises that the EPA has previously considered and decided not to adopt. First, the commenters do not think the definition of contaminants should reference both the CAA section 112(b) and CAA section 129(a)(4) lists. The agency p reviously explained its decision to use both lists in the March 2011 final rule and does not believe comments have offered any new information that would change the basis for this decision. The EPA previously discussed that both lists of constituents are a ppropriate because both lists are to be considered by the EPA when developing emissionPage 150 of 527

standards. 31 Furthermore, the agency has previously explained that CAA section 129 provides that the term “solid waste” shall have the meaning promulgated by the EPA unde r RCRA and that the EPA has the authority to interpret RCRA to decide whether NHSMs are solids wastes or not. 32 The agency notes that it has carefully considered the CAA section 112(b) and 129(a)(4) lists of pollutants and removed those constituents that wo uld not be appropriate to evaluate in NHSMs. Second, the commenters base their proposed approach to defining contaminants purely on emissions. The agency agrees that emissions may be a means of discard but contaminants that are destroyed by the combustion process or incorporated into products may not have emission standards established under CAA section 129. Combustion may still be a means of discard in these instances. Thus, a definition of contaminants based only on the CAA section 129 emissions standards only tells one how well the combustion unit is operating, not whether the NHSM is being used as a legitimate non

- waste commodity. 33 Comment: Several commenters addressed the specific constituents proposed to be removed from the definition of contaminants. In general, comments were supportive of the concept that constituents unlikely to be found in NHSMs prior to

31 See 76 FR 15524

- 15525. See also, 75 FR 31883. 32 See 76 FR 15469

- 15470. See also, 76 FR 15473. 33 See 76 FR 15525.Page 151 of 527

combustion or adequately measured elsewhere in the definition should be removed from the definition. Multiple commenters asked that CO also be re moved from the definition because it is unlikely to be found in NHSMs. The same commenters asked that opacity be removed from the definition because it can only be measured in emissions and is not directly related to any one specific constituent in NHSMs. Particulate matter and coke oven emissions were removed, noted the commenters, because they are products of combustion unlikely to exist in NHSMs prior to combustion, and the same can be said for CO and opacity. One commenter expressed concern that asbest os had been removed from the list due to the removal of “fine mineral fibers” as a contaminant. The commenter explained that asbestos is commonly found in construction and demolition debris and asbestos particles in smoke are deadly. Excluding fine mineral fibers from regulation explicitly ignores the possibility of such contamination in C&D debris, noted the commenter, and asbestos should be a regulated contaminant. Response: The EPA has issued a final rule containing the language removing constituents fro m the definition of contaminants as proposed, with one change. The agency has removed “opacity” from the final definition of contaminants as well. Similar to PM and coke oven emissions, there is noPage 152 of 527

practical way to measure opacity in NHSMs prior to combust ion or in products made using NHSMs. In fact, the EPA did not intend for opacity to be included in the definition of contaminant under the previous definition. A visual property of an emissions stream, opacity is not even a constituent, let alone a constit uent that can be measured in NHSMs prior to combustion or in products made using NHSMs. As such, removing it from the definition will provide clarity without effecting any practical change to the definition. 34 The agency has not removed CO from the definit ion of contaminants because, contrary to comments that it is unlikely to be found in any NHSM, it is likely to be present in gaseous NHSMs and is not adequately measured elsewhere in the “contaminants” definition. However, as we discuss in the December 201 1 proposed rule, CO is unlikely to be found in solid or liquid NHSMs and EPA expects that persons can use process knowledge to justify not testing for CO in these cases. 35 The agency has removed the fine mineral fibers group from the definition of contaminants, as proposed, because they are not expected to be found in NHSMs. Fine mineral fibers, as regulated under CAA section 112(b) are releases from the manufacturing and pr ocessing of non

- combustible rock, glass or

34 Neither Table 7 nor Table 8 in the December 2011 proposed rule included opacity. See 76 FR 80478

- 80480. 35 See 76 FR 80475Page 153 of 527

slag into mineral fibers and are not produced during the combustion process. Asbestos, on the other hand, has been set apart from the fine mineral fibers group in CAA section 112(b), and thus, it is set apart in t he NHSM rule. To be clear, asbestos is included in the definition of contaminants in today’s final rule and it would be a contaminant regardless of whether the fine mineral fibers group was removed or not. In summary, the following 12 CAA section 112(b) and section 129(a)(4) pollutants have been removed from the definition of contaminants: HCl, Cl 2 , HF, NO x , SO 2 , fine mineral fibers, PM, coke oven emissions, opacity, diazomethane, white phosphorus and titanium tetrachloride. c. Established Tire Collecti on Programs The 40 CFR part 241.2 definition for “established tire collection program,” as established by the March 2011 promulgation in the Federal Register , was as follows: “Established tire collection program means a comprehensive collection system that ensures scrap tires are not discarded and are handled as valuable commodities in accordance with section 241.3(b)(2)(i) from the point of removal from the vehicle through arrival at the combustion facility.” In the December 2011, NHSM proposed rule, the E PA proposed to revise this definition (and the related criteria for non

waste tires now at 40 CFR 241.4(a)(1)) in order to account forPage 154 of 527

off

- specification tires. The term “off

- specification tires” is intended to also include “factory scraps.” The off

- specifi cation tires are not removed from vehicles and are handled under contractual arrangements which ensure they are not discarded. The definition was modified to include “contractual arrangement” to provide that not only “collection systems,” but also
contract ual arrangements for tire collection would be appropriate. The requirement for the tires to be removed from the vehicle was eliminated 36 since it is not applicable to off

specification tires. The revised definition is sufficient to encompass the agency’s in tent in describing these programs and continues to ensure that these scrap tires are not discarded and are handled as valuable commodities through arrival at the combustion facility. Further, the addition to the new categorical non

- waste provision at 40 CF R 241.4(a)(1) eliminated the need for the previous scrap tire provision at 40 CFR 241.3(b)(2)(i), 37 (which has been removed and reserved in today’s final rule) therefore, the reference to that provision was

36 The related tire provision at 241.4(a)(1) allows for tires that are off

specification or are removed from vehicles. 37 The scrap ti re provision in the 2011 NHSM final rule is now removed and the section reserved in today’s final rule: “(b) The following non

- hazardous secondary materials are not solid wastes when combusted: (2) The following non

- hazardous secondary materials that have not been discarded and meet the legitimacy criteria specified in paragraph (d)(1) of this section when used in a combustion unit (by the generator or outside the control of the generator): (i) Scrap tires used in a combustion unit that are removed from vehicles and managed under the oversight of established tire collection programs.”Page 155 of 527

removed in the definition. The agency proposed to revise the definition as follows: “Established tire collection program means a comprehensive collection system or contractual arrangement that ensures scrap tires are not discarded and are handled as valuable commodities through arrival at the combustion f acility.” The definition in today’s final rule includes the revisions to the definition we proposed in December 2011. In addition, the agency is including in the definition “tires that were not abandoned and were received from the general public at collec tion program events.” This revision is being made based on comments received on the proposed rule as discussed below. Under today’s revised definition, established tire collection programs could also include a “contractual arrangement.” If, for example, th e state is sponsoring special events where they take tires back from the general public, those tires would also be included. Thus, the definition in today’s final rule is “Established tire collection program means a comprehensive collection system or contr actual arrangement that ensures scrap tires are not discarded and are handled as valuable commodities through arrival at the combustion facility. This can include tires that were not abandoned and were received from the general public at collection program events.”Page 156 of 527

While the agency did receive comments on the specific proposed changes described above, a number of commenters rephrased or restated previous arguments which conclude that any tires burned for energy recovery are not wastes, even if previously discarded. Conversely, one commenter reiterated its previous arguments which conclude that all used tires are waste, even if burned for energy recovery. Today’s rule is responding only to the specific proposed revisions to the regulations and the requests for comment in the proposal. For the response to other issues, refer to the record for the 2011 NHSM final rule (76 FR 15456). Many of the commenters who provided comments on tires intertwined the “established tire collection program” definition issues wit h the related topic of the categorical non

waste provision for scrap tires. For a discussion of those comments, refer to the response to comments for the categorical

non - waste provision for scrap tires (section III.D.3.a.). The EPA is not reopening its dec ision that these scrap tires are not wastes. That decision, however, justifies a categorical exclusion where there is not a need to make case

- by

- case determinations regarding discard in the first instance and the legitimacy criteria.
Comment : Several comm enters mentioned that, in some cases, the public individually takes tires to state

- run tire collection program events. These are tires that the general public owns andPage 157 of 527

were typically removed from their vehicle. These are not abandoned tires. These collecti on events, in some cases, are held by the combustor under the state’s environmental program oversight. In those cases, the combustors enter into agreements with local communities to hold these events during which local residents are allowed to bring tires to facilities to be recycled, including used as alternative fuels. The scope of tire collection programs also may allow the public to take used tires which they may have stored in their garages, or elsewhere on their property, directly to a combustion faci lity

– in many cases a cement kiln. Under the EPA’s current definition of tire collection programs, the commenters said it is not clear whether these tires would qualify as those collected under an “established tire collection program.” Commenters genera lly agreed that these tires are not abandoned and should be utilized as non

- waste fuels without processing. Response: The EPA agrees with the commenters that tires that have not been discarded and are collected directly from the public at tire collection events are intended to qualify for the 40 CFR 241.4(a)(1) requirement to be “managed under the oversight of established tire collection programs.” The agency agrees that these tires are not abandoned and when collected under established tire collection pro gram events, they arePage 158 of 527

considered to be non

- waste fuels, just as the other tires handled by established tire collection programs are non

- waste. To make this point clear, the EPA has modified the regulatory language. Please refer to the Response to Comment d ocument for more details on these collection events and the responses. 2. Contaminant Legitimacy Criterion for NHSMs Used as Fuels Under the December 2011 proposed rule, revisions to the contaminant legitimacy criterion for NHSMs used as fuel provided det ails on how contaminant comparisons could be made in practice. The proposal maintained the fundamental approach of the March 2011 final rule, but the proposed criterion better reflected the EPA’s intent to allow certain flexibilities when making contaminan t comparisons. First, the proposal replaced “contaminants” with the phrase “contaminants or groups of contaminants” to clarify that, when deciding how to compare contaminants between NHSMs and traditional fuels, persons do not have to make comparisons on a contaminant

- by

- contaminant basis in all cases. When technically reasonable, comparisons may be made on a group of contaminants

by

- group of contaminants basis. The December 2011 rule also proposed to codify language from the preamble to the March 2011 fin al rule clarifying that when selecting which traditional fuel(s) a unit is designed to burn, persons are not limited to the traditional fuel the unitPage 159 of 527

is currently permitted to burn. Persons may choose any traditional fuel the unit can burn or does burn, wh ether or not it is permitted to burn such fuel. In addition, the proposed regulations included text confirming that, when comparing contaminant levels between NHSMs and traditional fuels, persons are not limited to data from the specific traditional fuel being replaced. National surveys of traditional fuel contaminant levels are one example of another acceptable data source. Neither the March 2011 final rule nor the December 2011 proposed rule required persons to compare contaminants in their NHSM to conta minants in the specific traditional fuel source they burn (or would otherwise burn). As an example, the proposal noted that persons who would otherwise burn coal may use any as

- burned coal available in coal markets in making a comparison between the contam inants in their NHSM and the contaminants in coal

— they are not limited to coal from a specific coal supplier they have used in the past or currently

use. Finally, the proposed regulations included text confirming that, when comparing contaminant levels be tween NHSMs and traditional fuels, persons are not limited to comparing average concentrations. Traditional fuel contaminant levels can vary considerably and the full range of contaminant values may be used.Page 160 of 527

Two other issues arose prior to the December 201 1 proposed rule that, while not leading to specific regulatory changes in the proposal, still merited a discussion in the proposal. The first issue was that contaminant legitimacy criterion determinations do not require testing contaminant levels, in eithe r the NHSM or an appropriate traditional fuel. Persons can use expert or process knowledge to justify decisions to either rule out certain constituents or determine that the NHSM meets the contaminant legitimacy criterion. The second issue was that
persons may use data from a group of similar traditional fuels for contaminant comparisons, provided the unit could burn each traditional fuel. The idea grows from the “designed to burn” concept explained in the March 2011 final rule and codified in today’s final rule, and it allows a person with a unit that can or does burn similar traditional fuels ( e.g. , anthracite, lignite, bituminous and sub

- bituminous coal) to group those traditional fuels when making contaminant comparisons. The EPA believes that comments have not changed the basis for making the decisions to expressly allow grouping of contaminants, to interpret “designed to burn” to mean can burn or does burn regardless of permit status, and to affirm that persons can use ranges and national surveys of tr aditional fuel data when making contaminant comparisons between NHSMs and traditional fuels. Comments have also not changed the agency’sPage 161 of 527

basis for making the decisions that testing is not required and that persons can group similar traditional fuels for th e purposes of contaminant comparisons. Thus, the EPA is adopting the reasoning from the proposal and revising the contaminant legitimacy criterion for NHSMs used as a fuel to incorporate these concepts. The EPA has decided, however, to make one modificati on to the proposed contaminant legitimacy criterion based on comments received and information in the rulemaking record. The final criterion issued today includes additional language clarifying the appropriate use of ranges when making contaminant comparis ons between NHSMs and traditional fuels. To use the full range of contaminant values in traditional fuels, persons should also account for the variability in NHSM contaminant levels. Additional details and rationale for the proposed revisions concerning t he grouping of contaminants, the meaning of designed to burn, and the use of ranges and traditional fuel data in making contaminant comparisons are discussed in section III.D.2.b, section III.D.2.c, and section III.D.2.d below. Additional reasoning for kee ping the rule provisions as proposed and for any modifications to the proposed language are described in the responses to comments included in these sections. a. General Comments on the Revised Contaminant Legitimacy CriterionPage 162 of 527

The EPA is not responding to issues that the agency decided in the March 2011 rule and has not reopened for comment. Specifically, the agency has previously discussed and did not solicit comments in this rule on why the concept of legitimacy is important in determining whether a secon dary material is genuinely recycled or is, in fact, discarded. 38 The agency has also previously discussed and did not solicit comments in this rule on why contaminant comparisons to traditional fuels are an appropriate and mandatory factor in determining le gitimacy for NHSMs used as fuels in combustion units. 39 The agency has also previously discussed and did not solicit comments in this rule on why the “comparable to or lower than” standard is more appropriate than the “not significantly higher than” standar d. 40 The agency has also previously discussed that the NHSM Rule differs from the DSW Rule in that it is tailored specifically for application to NHSMs used in combustion units. 41 Comment: Industry commenters overwhelmingly supported the proposed revisions to the contaminant legitimacy criterion, stating that the revisions would help provide regulatory certainty and give the regulated community more confidence in their self

- determinations.

38 See 75 FR 31870. 39 See 75 FR 31871

- 31872. See also, 76 FR 15524

- 15525. 40 See 75 FR 31872. See also, 76 FR 1552 3. 41 See 75 FR 31870.Page 163 of 527

Environmental groups, on the other hand, expressed concern that the combination of flexibilities present in the proposed revisions to the contaminant legitimacy criterion will allow facilities to compare contaminant levels in C&D debris and other wood waste to the highest contaminant levels found in coal, even if the facil ity is not permitted to burn coal. They believed that this should not be permitted and argued that C&D wood should not contain contaminant levels higher than found on average in virgin biomass. State comments were mixed, with one commenter supporting the p roposed revisions and another commenter expressing concern that the revisions would weaken the states’ permitting authorities and create an incentive for combustors to burn dirtier traditional fuels. Response: The EPA has decided to retain the concepts proposed to the contaminant legitimacy criterion because these changes more accurately reflect the EPA’s intent under the March 2011 final rule. The agency maintains that these concepts are reasonable an d provide a necessary degree of certainty for persons seeking to comply with the rule. This is explained in more detail in sections III.D.2.b (groups of contaminants), III.D.2.c (meaning of designed to burn), and III.D.2.d (allowable contaminant comparison s) of this preamble.Page 164 of 527

At the same time, comments from both industry and environmental groups have highlighted, in the agency’s opinion, a need for additional clarity in the regulatory text on the appropriate use of ranges when making contaminant comparison s between NHSMs and traditional fuels. Accordingly, the EPA has made a minor adjustment to the criterion to ensure that ranges are not used inappropriately in contaminant comparisons (i.e., the highest traditional fuel contaminant values should not be
comp ared to average NHSM contaminant values). See section III.D.2.d of this preamble for a more detailed description of this specific change to the contaminant legitimacy criterion. The agency disagrees with state concerns that the NHSM rule will weaken the s tates’ permitting authorities. State permitting authorities must still approve permit changes and this final rule does not affect discretion of the permitting authorities in acting on requests for permit modifications. The agency also disagrees with state concerns that the NHSM rule will create an incentive for combustors to burn dirtier traditional fuels. The EPA understands how restricting contaminant comparisons to traditional fuels the unit currently burns could provide an incentive for the facility to burn traditional fuel with high contaminant levels. When facilities do not actually have to burn that traditional fuel to make comparisons, however, that incentive is effectively removed.Page 165 of 527

Comment: One commenter requested that the proposed revisions to the contaminant legitimacy criterion be added to each option for demonstrating that NHSMs are non

- wastes when used in combustion units, whether it is the on

- site documentation, the EPA petition process or the categorical non

waste determination process propos ed in 40 CFR 241.4. Response: Revisions to the contaminant legitimacy criterion codified today in 40 CFR 241.3(d)(1) apply to all options for demonstrating that a NHSM is not a solid waste when used as a fuel in a combustion unit. The revised legitimacy c riterion is embedded in the self

- implementing options outlined in 40 CFR 241.3(b)(1) for use within the control of the generator and 40 CFR 241.3(b)(4) for NHSMs that are processed and then used in a combustion unit. The revised legitimacy criterion is als o embedded in the optional EPA petition process outlined in 40 CFR 241.3(c). The revised legitimacy criterion is also referenced as a factor to be considered in the categorical non

- waste determination process outlined in 40 CFR 241.4. Comment: Several comm enters expressed concern that the proposed revisions to the contaminant legitimacy criterion, although an improvement over the 2011 Final NHSM Rule, may not provide the regulated community with enough information to be confident in their compliance status. Two commenters noted that the EPA has overlooked the analytical complexities inherent inPage 166 of 527

the contaminant legitimacy criterion and the many opportunities it creates for disagreement between facility operators and regional and state regulators. One of these commenters asked the EPA to both define the term ‘comparable’ and clarify sampling and analytical methodologies to be used when measuring contaminant levels. Other commenters advised the EPA to increase predictability as much as possible by developing a d isciplined process for making contaminant comparisons and providing real time transparency for such decisions. Similarly, two commenters expressed concern that even after a source makes a fuel determination, the EPA could take a different view of the NHSM s and conclude that they were solid wastes. The risk sources face is noncompliance with the CAA and these commenters contended that the issue is too critical for the EPA to leave the contaminant legitimacy criterion so vague. Over time, as the EPA develops a record for decisions (particularly comparable contaminant determinations), one of these commenters urged the EPA to establish a database and immediately post determinations for other sources to review. Other commenters supported the proposed revisions t o the contaminant legitimacy criterion and indicated that they provided sufficient clarification. One commenter noted that changes to the language of the criterion and the additional clarification provided in the preamble to the December 2011Page 167 of 527

proposed rule provide key additional detail on making contaminant comparisons and allow additional flexibility where appropriate. The same commenter urged the EPA to maintain that flexibility if the agency develops additional guidance on making contaminant comparisons in the future. Response: The EPA has retained the approach included in the proposed rule that provides information on how contaminant comparisons can be made and the agency will continue to make its traditional fuel data and legitimacy determinations tran sparent through the EPA website. 42 The agency recognizes the need for regulatory certainty, a need that has been addressed by revisions to the definition of contaminants and the contaminant legitimacy criterion in today’s final rule. Contaminants have been specifically listed, additional clarity on NHSMs/traditional fuel comparisons has been provided and several comparison methodologies have been provided in the preamble as examples that could be used by the regulated community. Comments from the regulated c ommunity have been supportive both of these changes and of the agency’s efforts to update traditional fuel data that can be used for

42 The EPA maintains a NHSM webpage with current information on contaminant levels in traditional fuels, examples of legitimacy determinations and other information at http://www.epa.gov/epawaste/nonhaz/define/index.Page 168 of 527

contaminant comparisons. 43 In addition, a number of interpretative letters have been written that address specific fact situ ations as presented by a specific facility and these letters have been posted on the EPA’s website. 44 These letters serve as examples of acceptable ways to demonstrate legitimacy. The EPA must balance the need for regulatory certainty, however, with the ne ed for flexibility, which many commenters also believe is important. As the agency has previously discussed, the legitimacy criteria must be flexible enough to account for future changes in commodities, technologies, markets and fuel prices. 45 Previous comm ents have stressed the preference for a qualitative approach, and the agency has agreed, noting that numerical specifications may be impractical due to the multiplicity of fuels and ingredients. 46 The agency has also previously discussed that a numerical de finition of ‘comparable’ would be impractical given differences in the typical concentration levels of various contaminants, choosing instead to offer several examples. 47 While the agency will consider future guidance on contaminant comparisons, it has dete rmined that no one approach is appropriate for every legitimacy

43 Contaminant Con centrations in Traditional Fuels: Tables for Comparison, November 29, 2011, can be found at http://www.epa.gov/epawaste/nonhaz/define/index. 44 See NHSM rule website http://www.epa.gov/epawaste/nonhaz/define/index.htm 45 See 75 FR 31870. 46 See 75 FR 31871
. 47 See 76 FR 15524 and 15542.Page 169 of 527

determination given the variety of traditional fuels, NHSMs and combustion units that currently exist and will likely increase in the future. Comment: One commenter noted that both the March 2011 NHSM final rule and the proposal implicitly place the burden on the combustion facility to determine if a fuel derived from NHSMs meets the legitimacy criteria. In the utility industry, the commenter explained, it is common practice for utilities to r ely on fuel marketers to establish and verify fuel quality, and the regulatory burden on utilities combusting such secondary materials as fuels could be reduced if the EPA clarified the circumstances under which a facility would be entitled to rely on the fuel quality representations of its suppliers. The commenter suggested that the EPA clarify that a utility may rely in good faith on the representations of its suppliers that NHSMs meet the codified legitimacy criteria, or, alternatively, that utilities be required only to periodically test the quality of
NHSM

- derived fuels obtained from third parties to rely on their suppliers’ representations. Response: The EPA notes that while fuel suppliers may provide their customers with documentation supporting a le gitimacy determination, persons who burn NHSMs are ultimately responsible for the materials burned at their units. As stated in the proposed rule, however, the agency adopts as its decisionPage 170 of 527

for this final rule that initial assessments would not need to be repeated as long as the facility continues to operate in the same manner and use the same type of NHSM as when the original assessment was made. 48 b. Grouping of Contaminants The December 2011 proposed revision to the contaminant legitimacy criterion for N HSMs used as a fuel began with the following sentence: “The non

- hazardous secondary material must contain contaminants or groups of contaminants at levels comparable in concentration to or lower than those in traditional fuel(s) which the combustion unit i s designed to burn.” The phrase ‘or groups of contaminants’ was not present in the language from the March 2011 NHSM Final Rule but was included in the December 2011 NHSM Proposed Rule to clarify that groups of contaminants could be evaluated in determinin g whether a NHSM meets the contaminant legitimacy criterion. In particular, the proposed rule noted that groups of contaminants in NHSMs could be compared to similar groups in traditional fuels where the grouped contaminants shared physical and chemical p roperties that influence their behavior in the combustion unit prior to the point where emissions occur. Volatility, the presence of specific elements and compound structure were three such properties identified in the proposal

48 See 76 FR 80481.Page 171 of 527

and one approach to grouping contaminants was shown that included groups for TOX, nitrogenated HAP, VOCs, SVOCs, dioxins and furans, PCBs, PAHs and radionuclides. The agency also noted that persons may consider other groupings that they can show are technically reasonable. Grouping o f contaminants is a standard practice often employed by the agency as it develops regulations. In fact, the monitoring standards included in the CAA sections 112 and 129 regulations also utilize the grouping concept and they apply to the same combustion un its impacted by the NHSM rule ( i.e. , industrial, commercial and institutional boilers and process heaters and CISWI units). For example, Volatile hydrocarbons and semi

- volatile hydrocarbons can both be expected to result from incomplete combustion; therefo re, the emission standards promulgated under the CAA regulations are grouped into one category: CO. 49 Halogenated organics are expected to contribute to emissions of dioxin and acid gases (HCl and HF); therefore, the emission standards promulgated under the CAA are grouped into two categories: D/F and HCl. 50 Nitrogenated compounds are expected to contribute to emissions of NO x ; therefore, the emission standards promulgated under the CAA are grouped into one category: NO x . 51 In addition, a number of the seeming ly “individual” pollutants listed in sections 112 and 129 of the CAA are

49 Area Source Boilers NESHAP, Major Source Boilers NESHAP, and Commercial and Industrial Solid Waste Incinerators NESHAP. 50 Major Source Boilers NESHAP and Commercial and Industrial Solid Waste Incinerators NESHAP. 51 Commercial and Industrial Solid Waste Incinerators: NESHAP.Page 172 of 527

actually classes of structurally

- related compounds ( e.g . , PCBs, POM, D/F, cyanide compounds, cresols, glycol ethers, radionuclides, xylenes, antimony compounds, arsenic compounds, ber yllium compounds and cadmium compounds). All comments discussing the agency’s proposal to expressly allow the grouping of contaminants supported the agency’s position. Thus, the EPA is adopting the language from the proposal and revising the contaminant le gitimacy criterion for NHSM used as a fuel to allow contaminants to be compared on a contaminant

- by

- contaminant basis or, where reasonable, on a group of contaminants

- by

- group of contaminants basis. Any additional reasoning for keeping the revision as prop osed, without modification, is described in the responses to comments below. Comment: In general, comments overwhelmingly supported the ability to group contaminants when making contaminant comparisons in accordance with the legitimacy criteria.
Commenters stated that codification of this concept would provide regulatory certainty and allow for more meaningful comparisons, similar to the manner in which the EPA measures emissions at combustion units. Commenters noted that the ability to group contaminants w ill facilitate compliance because most existing test methods, including the EPA methods, call for the grouping of analytes. Commenters believed that the groupingPage 173 of 527

concept is an appropriate mechanism to recognize the variability in contaminant levels inheren t in fuels. Commenters also appreciated the examples of appropriate contaminant groups provided in the proposed rule along with the ability to compare other technically reasonable groups (76 FR 80477

- 80480). Two commenters stated that each mention of the word “contaminants” should be changed to “contaminants or groups of contaminants” in the regulatory text to further clarify that a comparison to groups of contaminants is intended. Response: The EPA has retained the language specifically allowing grouping in the contaminant legitimacy criterion for NHSMs used as a fuel. The EPA adopts the reasoning in the December 2011 rule as its final reasoning, as further supported with reasoning discussed in the comment responses below. While the EPA has retained the l anguage allowing the grouping of contaminants, the agency does not consider it necessary to change every instance of “contaminant levels” and “contaminants” to “contaminants or groups of contaminants” in order to make it sufficiently clear that contaminant grouping is allowed. The agency also notes that not all contaminants are necessarily intended to be grouped, including individual elemental contaminants, asbestos, CO and phosphine. 52

52 See 76 FR 80478, Tables 7 and 8.Page 174 of 527

Comment: The ability to group metal contaminants was suggested by sever al commenters. One commenter held that all 11 metals should be specifically included as one group. Another commenter noted that with the exception of Hg, all metals should be grouped. Yet another commenter suggested that metals could be grouped into a vola tile metals group and a non

- volatile metals
group. Response: First, we would note that the agency is not limiting groups to the specific approach suggested in the proposed rule. The tables in the proposed rule suggest, but do not limit persons to, an app roach, including groups for TOX, nitrogenated HAPs, VOCs, SVOCs, dioxins/furans, PCBs, PAHs and radionuclides, with other contaminants left to be evaluated on an individual contaminant

- by

- contaminant basis. Flexibility exists for persons to consider other appropriate groups that they can show are technically reasonable, with additional text in the proposal stating that other groups should share physical and chemical properties that influence behavior in the combustion unit prior to the point where emissions occur. Volatility, the presence of specific elements and compound structure are three such properties. 53 However, we do not consider the grouping of total metals to be appropriate. Specifically, metals vary across all three

53 See 76 FR 80477.Page 175 of 527

parameters

— volatility, the presence of specific elements and compound structure

— that were discussed as appropriate to consider when constructing contaminant groups. First, many factors influence metal volatility in combustion units, and to the extent that trends in metal volatility have been recognized, a wide disparity exists between metals. Mercury, as one commenter noted, is highly volatile, more so than any other metals listed in the contaminants definition. Metals can be grouped into volatile, semi

- volatile and low

- volatile
cate gories, but it is important to note that these distinctions can vary based on design differences in combustion units, operating temperatures, the physical form and species of the metal and the presence of chlorine. 54 , 55 Second, each metal clearly contains di fferent elements. Finally, each metal is already a group of any compound containing the particular element, encompassing a wide array of compound structures. In the absence of other suggested grouping criteria or information, the EPA does not consider tota l metals to be an appropriate
group. Comment: One commenter provided a numerical example of VOC contaminant levels in fuel oils to illustrate the importance of

54 EPA. 2001. “Risk Burn Guidance for Hazardous Waste Combustion Facilities.” EPA530

- R

- 01

- 001. July. 55 Clarke, L.B. and L.L. Sloss, 1992. “Trace Elements

– Emissions from Coal Combustion and Gasification.” IEACR/49. IEA Coal Research, London. July.Page 176 of 527

grouping. The commenter cited the traditional fuel tables provided on the EPA website, stating that toluene and xylenes are present in fuel oils at concentrations up to 380 ppm and 3,100 ppm, respectively. If a NHSM had the concentrations reversed, explained the commenter (380 ppm xylene and 3,100 ppm toluene), the ability to group VOCs would then allow the NHSM to meet the contaminant legitimacy criterion. The commenter reasoned that this is appropriate because both toluene and xylenes are beneficial components of fuel. Response: The EPA disagrees with this interpretation of the grouping concept. U nless concentration data for a group of contaminants (e.g., VOCs) come from the same fuel source, adding together the concentrations of individual constituents (e.g., toluene and xylene) within that group may yield a total concentration beyond what would b e considered a normal part of a legitimate fuel. Using the example cited by the commenters, some fuel oils have been found to have up to 380 ppm toluene and other fuel oils have been found to have up to 3,100 ppm xylene. Because the toluene and xylene conc entrations were taken from different fuel oils, however, this does not prove that a single fuel oil in existence actually has VOC levels as high as 3,480 ppm (380 + 3,100). The agency notes that VOC levels higher than as 3,480 ppm, have been found in fuel oil

-- concentrations of one VOC alonePage 177 of 527

(hexane)have been found as high as 10,000 ppm

-- and the point of this discussion is to clarify a methodology rather than a number for acceptable VOC levels in NHSMs. 56 We would also note that while the agency consid ers VOCs to be an appropriate contaminant group to use when making contaminant comparisons, it does not base that decision on whether or not toluene, xylenes and other VOCs are “beneficial components of fuel.” The decision that toluene, xylene and other
VO Cs, which the agency notes are pollutants listed in CAA section 112(b), are an appropriate group is based on the fact that they share similar physical and chemical properties that influence their behavior in the combustion unit prior to the point where emi ssions occur. c. Meaning of Designed to Burn The December 2011 proposed revision to the contaminant legitimacy criterion for NHSMs used as a fuel included the following statement: “In determining which traditional fuel(s) a unit is designed to burn, perso ns can choose a traditional fuel that can be or is burned in the particular type of boiler, whether or not the combustion unit is permitted to burn that traditional fuel.” The idea that “designed to burn” means “can

56 Contaminant Concentrations in Traditional Fuels: Tables for Comparison, November 29, 2011 can be found at http://www.epa.gov/epawaste/no nhaz/define/index. EPA intends to update this document as additional data becomes available, and if persons have data measuring traditional fuels for groups of VOCs, or for other contaminant groups, they are encouraged to provide the agency with such data.Page 178 of 527

burn or does burn” was included in pream ble text to the March 2011 final rule. The December 2011 rule proposed to include this concept, which is only applied under the NHSM rule to aid in the selection of appropriate traditional fuel(s) for contaminant comparisons, in regulatory language. The Ma rch 2011 final rule explained that in determining which traditional fuel(s) the owner or operator of the boiler unit would make a comparison to with respect to contaminant levels, the agency would allow any traditional fuel(s) that can be or is burned in t he particular type of boiler. The agency reasoned that this approach was the most appropriate since the NHSM would be replacing the use of particular type(s) of fuel that could otherwise be burned. 57 The December 2011 proposal further explained that contami nants are compared between NHSMs and traditional fuels to assist in making a determination whether or not the NHSM is being discarded when combusted, not to regulate which traditional fuel a combustor should choose to burn. For the purposes of making a dis card determination, the proposal reasoned that differentiating between “can burn” and “does burn”
was not relevant. The agency did note in the proposed rule, however, that for a unit to be able to burn a traditional fuel, it would need an

57 See 76 FR 15542.Page 179 of 527

appropriate feed mechanism ( e.g. , a way to load solid fuel of a particular size into the unit) and the ability to adjust physical parameters to ensure spatial mixing and flame stability per unit specifications. Because most combustion units can burn different

— but related

— t raditional fuels, the agency discussed in the proposal that broad groups of similar traditional fuels may be used when comparing contaminants. The most common traditional fuel categories burned at major source boilers are coal, wood, oil and natural gas, a s evidenced by data submitted to the EPA’s OAQPS. 58 , 59 To further clarify the impact of the proposed “designed to burn” language on contaminant comparisons, potential categories for coal, wood and oil were further described in the proposal. A coal group was proposed that could include data on anthracite, lignite, bituminous and sub

- bituminous coal. A wood or biomass group was proposed that could include data on unadulterated lumber, timber, bark, biomass and hogged fuel. An oil group was proposed that could i nclude data on fuel oils 1

- 6, diesel fuel,

58 EPA, Office of Air Quality Planning and Standards (OAQPS), Emissions Database for Boilers and Process Heaters Containing Stack Test, CEM & Fuel Analysis Data Reported Under ICR No. 2286.01 and ICR No. 2286.03 (Version 7). December 2011. http://www.epa.gov/ttn/atw/boiler/boilerpg.html#TECH. 59 The fuel analysis information in this OAQPS database is one example of a “national survey” of traditi onal fuel information, as referenced in the final contaminant legitimacy criterion issued today at §241.3(d)(1)(iii).Page 180 of 527

kerosene and other petroleum based oils. 60 In cases where a unit can burn traditional fuels from several categories, such as a boiler that can burn coal or biomass, the proposal noted that contaminant comparisons c ould be made using data from either fuel category. The ability to compare contaminants in a NHSM, under the NHSM rule, to contaminants in any traditional fuel that could be burned does not change the fact that once burning occurs, emissions standards are d etermined under the Boiler MACT or CISWI rule by the particular fuel (or fuel blend) that is burned. Whether each rule focuses on what ‘could be burned’ or on what ‘is burned’ is determined by the rule’s purpose and the order in which decisions must be mad e. Together, these factors explain why the NHSM, Boiler MACT, and CISWI rules take different approaches to account for individual combustion units that burn multiple fuels. Specifically, the NHSM rule must first determine which NHSMs can be burned in CAA s ection 112 units ( i.e. , boilers) and which can only be burned in CAA section 129 units ( i.e. , incinerators). When making such a waste or non

- waste determination, the NHSM rule cannot always predict what fuel would otherwise be burned (multiple options may exist).

60 EPA has determined that an oil group should not include unrefined crude oil or gasoline, as neither is typically burned in combustion un its subject to the CAA sections 112 or 129 standards.Page 181 of 527

Accordingly, the rule allows contaminant comparisons to be made to any traditional fuel the unit could burn. The Boiler MACT or CISWI rule must then determine how to regulate emissions from the unit, by which point it is clear what fuel is actuall y being burned. Accordingly, these rules can and do establish subcategories of units, each with different emissions standards. The EPA has considered the comments received, as explained below, but has not changed the basis for its interpretation of the “d esigned to burn” concept. Thus, the EPA is adopting the language from the proposal and revising the contaminant legitimacy criterion for NHSMs used as a fuel to allow persons making contaminant comparisons to choose a traditional fuel that can be or is bur ned in the particular type of boiler, whether or not the combustion unit is permitted to burn that traditional fuel. Any additional reasoning for keeping the revision as proposed, without modification, is described in the responses to comments below.
Comme nt: Industry commenters generally supported the agency’s proposal to codify the previously stated meaning of “designed to burn” within the contaminant legitimacy criterion
for NSHMs used as fuels. These commenters welcomed the regulatory certainty provided by the revision and described it as a practical and appropriate recognition that some units can burn multiple traditional fuels.Page 182 of 527

Environmental groups, on the other hand, expressed concern that the proposed definition of designed to burn would allow
cont aminants in C&D wood to be compared to those in coal instead of virgin wood. One state commenter also expressed concern that allowing comparisons to any fuel the unit could burn, including fuels they are not permitted to burn, would weaken the states’
per mitting authorities and create an incentive for combustors to burn dirtier traditional fuels so that they could compare NHSMs to fuels with higher contaminant levels. An industry commenter also mentioned that such an approach would reward facilities that b urn dirtier fuel and suggested that the agency remove the entire “designed to burn” concept from the rule. Response: Based on a review of the comments, the EPA has retained the proposed revision to the contaminant legitimacy criterion for NHSMs used as fu els clarifying that, for the purpose of determining traditional fuel(s) to which a NHSM may be compared, the meaning of “designed to burn” may be broadly interpreted to include any traditional fuel that could be burned, regardless of facility permit status . The agency disagrees that this interpretation of “designed to burn” would incentivize the burning of dirtier fuels or weaken the states’ permitting authorities.Page 183 of 527

The EPA finds that allowing combustors to compare NHSMs to any traditional fuel a unit can o r does burn is both practical and appropriate under the statutory definition of solid waste. Although not all combustion units can burn multiple traditional fuels, some units can and, indeed, do rely on different fuel types at different times based on avai lability of fuel supplies, market conditions, power demands and other factors. Under these circumstances, it would be arbitrary to restrict the combustion for energy recovery of NHSMs with contaminant levels comparable to or lower than that of one traditio nal fuel the unit could choose to burn solely because contaminant levels are higher than that of a second traditional fuel the unit could also choose to burn if fuel supplies, market conditions, power demands, or other factors change. Such an approach woul d be impracticable and not consistent with the agency’s intent. It would also be inconsistent with the concept of discard, since a facility burning a NHSM with the same contaminants as another fuel it could also be burning should not be considered to disca rd that NHSM based on its contaminant levels. The agency has also determined that restricting comparisons to traditional fuels the unit is permitted to burn is unnecessary. The fact that a facility is not currently permitted to burn a particular traditiona l fuel does not mean it could not be permitted to burn that traditional fuel in the future. ForPage 184 of 527

this reason, we do not believe it is reasonable to limit the comparison to permitted traditional fuels. Furthermore, such a restriction could have the unintende d consequence of combustion facilities across the country seeking permit modifications solely to facilitate contaminant comparisons for this rule. State permitting authorities must still approve permit changes and this final rule does not affect the discre tion of the permitting authorities in acting on requests for permit modifications. In addition, the EPA has determined that restricting contaminant comparisons to traditional fuels the unit currently burns could provide an incentive for the facility to bur n traditional fuel with high contaminant levels. When facilities do not actually have to burn that traditional fuel to make comparisons, that incentive is effectively removed. Comment: One commenter asked the agency to specifically acknowledge that certai n categories of boilers are designed to burn a variety of fuels, noting that stoker boilers, fluidized bed combustors and boilers with suspension burners, in particular, should be on such a list. Response: The agency has decided not to specifically list
wh ich combustion units are designed to burn which fuels for two reasons. First, the owner or operator of a combustion unit has a better understanding than the agency does of what thatPage 185 of 527

particular unit is designed to burn. Second, the agency is concerned that creating such a list will limit the flexibility of combustors with other types of units. Comment: One commenter noted that if the EPA considers it inappropriate to compare liquid fuels to solid fuels, the agency offers no justification for its position. Th e commenter argued that liquid to solid comparisons should be allowed because most cement kilns and many other industrial furnaces have the capacity to burn either solid or liquid fuels. The commenter described the December 2011 proposed rule as ambiguous with regard to this issue and recommended that if a combustion unit is designed to burn both a liquid fuel and a solid fuel, then the liquid to solid comparison should be “appropriate.” Response: EPA agrees with the commenter that if a unit can burn both a liquid traditional fuel and a solid traditional fuel, then comparison of an NHSM to either fuel would be appropriate. The revised contaminant legitimacy criterion clarifies how the “designed to burn” concept may be interpreted for the purposes of determ ining traditional fuel(s) to which a NHSM may be compared, and the Agency has determined that this revision is sufficient to allow appropriate comparisons to be made between solid NHSMs and liquid traditional fuels, and vice versa. The agency does not expe ct these circumstances to hold true for all combustion units, however, and reiterates that thisPage 186 of 527

would only be appropriate when the unit can in fact burn multiple traditional fuels used to make such comparisons. Comment: Several industry commenters addresse d the topic of what it means to be able to burn a traditional fuel in a combustion unit. The preamble to the recent proposed rule noted that combustion units would need an appropriate feed mechanism, as well as the ability to ensure the fuel is well mixed and keep flame temperatures within unit specifications, to be able to burn a traditional fuel. 61 Two commenters opposed the agency’s interpretation of what it means to be able to burn a traditional fuel in a combustion unit, stating that the agency provides no explanation of why feed mechanisms are relevant to whether or not a unit can burn a particular fuel. Both commenters also noted that when NHSMs are used as a fuel in combustion units, the focus on what a unit is “designed to burn” in the first place is irrelevant to whether discard is occurring. Another commenter explained that the same exact material could then be a solid waste in one case and a fuel in another case, depending on who is using the material. A third commenter supported the agency’s interpretation of what ‘can burn’ means, stating that the fate and emissions of a contaminant, whether it is contained in a traditional fuel or a material being considered for legitimacy, are as dependent on

61 See 76 FR 80481.Page 187 of 527

the des ign of the combustion unit as they are on the fuel matrix. The commenter explained further that units should be considered able to burn several types of fuels as long as each type is within the design criteria of the feed system, the combustion chamber and any downstream pollution control device. Response: The EPA disagrees with those commenters questioning the relevance of what fuels combustion units are designed to burn in the context of the legitimacy criteria. If a NHSM does not contain contaminants at levels that are comparable to or lower than those found in any traditional fuel that a combustion unit could burn, then it follows that discard could be occurring if the NHSM were combusted. Whether contaminants in these cases would be destroyed or discard ed through releases to the air, they could not be considered a normal part of a legitimate fuel and the NHSM would be considered a solid waste when used as a fuel in that combustion unit. 62 The reason we analyze what a unit is designed to burn is to decide the traditional fuel(s) to which contaminants should be compared. This comparison is then used as an aid to decide whether the NHSM is being legitimately used as a fuel or whether excess contaminants show that the burning is waste treatment. If a facility compared contaminants to a traditional fuel it cannot burn and that fuel is highly contaminated, a facility would then

62 See 76 FR 15523.Page 188 of 527

be able to burn excessive levels of waste components in NHSMs as a means of discard. Regardless of any fuel value in the material, it wo uld be a waste. Once this concept is established, certain factors are relevant to how we decide what a facility is designed to burn. The ability to burn a fuel in a combustion unit does have a basic set of requirements, the most basic of which is being abl e to get the material into the combustion unit. The agency reaffirms in today’s final rule its interpretation from the proposal that to be able to burn NHSMs, a combustion unit should also be able to ensure the material is well mixed and maintain temperatu res within unit specifications. Without these basic limits, there would be no point in distinguishing between fuels a unit is or is not “designed to burn,” and every combustion unit would be considered “designed to burn” any combustible material. Clearly, that is not the agency’s intent. As illustrated by one of the commenters, when a unit cannot burn a fuel according to its own design specifications, excess air pollutants form and are likely to be discarded as emissions. Thus, the agency acknowledges that whether or not a NHSM is a waste may depend on the unit burning the material. Comment: One commenter asked for clarification on the issue of unit modifications. If a boiler hypothetically could be modified in any way to combust a different traditional fuel , thePage 189 of 527

commenter noted, then a comparison to that fuel should be permissible to demonstrate that the NHSM is not a waste. Response: The EPA disagrees with this comment. As long as the modification remains hypothetical in nature, it stands to reason that the unit cannot yet burn the additional traditional fuel and the only reason it is comparing a NHSM to the dirtier fuel is to allow more waste input into the combustion unit. However, if the unit is actually modified to accept additional types of traditional fuels, then the owner or operator of the combustion unit can consider those traditional fuels in evaluating the NHSM for the contaminant legitimacy criterion. In this situation, such behavior shows that the combustor is serious about burning the other fuel and is willing to make the investment so that it can be burned properly instead of simply trying to gain comparison to a dirtier material. Comment: In the proposed rule, EPA specifically addressed used oil stating: “Used oil is a special case and does n ot need to undergo the contaminant comparison. If it meets the specifications in 40 CFR part 279.11, it is a traditional fuel. If it does not meet the specifications (i.e., it is ‘‘off

- spec’’ oil), it is a solid waste under the 2011 NHSM final rule.” 76 FR 80481, fn . 44. Some commenters argued that off

- spec used oil fuel, however, could satisfy all of EPA’s legitimacy criteria, including a contaminant comparison with coal, a traditionalPage 190 of 5 27

fuel. Thus, if a combustion unit is “designed to burn” both coal and oi l, the facility should be able to use coal as the traditional fuel for the purposes of determining whether the contaminants are comparable

— even when the NHSM at issue is off

spec used oil, as defined in 40 CFR part 279.11. Response: The Agency agrees wit h the commenter that contaminants in off

- spec used oil burned for energy recovery in facilities that are designed to burn coal may be compared to coal for purposes of determining whether the off

- spec used oil is a waste or non

- waste product fuel. According ly, for purposes of waste/non

- waste determinations, coal or oil, including on

spec used oil can be used as the traditional fuel identified for comparison of contaminants to meet the legitimacy criterion for units designed to burn both fuels. Some combustio n units are designed to burn multiple fuels, such as both coal and oil, including on

- spec used oil. Under these circumstances, the Agency agrees that the rules allow the comparison of contaminant levels to either traditional fuel. That is, to be designated as

a non - waste, the off

- spec used oil contaminant levels must be comparable to or lower than coal when coal is the traditional fuel used for comparison. EPA no longer finds, as stated in Footnote 44 of the proposed rule, that off

- spec used oil is always a waste for facilities that are designed to burn coal. Off

- spec used oilPage 191 of 527

continues to be a waste, however, for facilities that are not designed to burn coal because off

- spec used oil contains contaminant levels that are not comparable to on

- spec used oil. EPA also notes that in the preamble to the March 2011 rule (p. 15506), the Agency specifically rejected the comparison of off

specification used oil contaminants to coal. That discussion, however, was in the context of a general contaminant comparison for units that burn only fuel oil. Coal may not be the comparison material for all off

- specification used oil, but only for those facilities that are designed to burn coal as provided in the definition of this rule. Finally, we want to make clear that EPA has not modified the part 279 regulations for management of used oil, and thus, burning of off

- spec used oil for energy recovery is still subject to those rules, including the requirement that off

- spec used oil can only be burned in certain units (see 40 CFR 279.61(a)). 63 Comment: Commenters argue that the EPA has not adequately addressed how units designed to burn only NHSMs are to comply with the contaminant legitimacy criterion. The commenters

63 Off

- specification used oil can only be burned in the following types of units: (1) industrial furnaces, as defined in 40 CFR 260.10; (2) the following boilers, as defined in 40 CFR 260.10

— industrial boilers located on the site of a facility engaged in a manufacturing process where substances are transformed into new products, including the component parts of products, by mechanical or chemical processes, utility bo ilers used to produce electric power, steam, heated or cooled air, or other gases or fluids for sale, and used oil fired space heaters provided that the burner meets the provisions of 40 CFR 279.23; and (3) hazardous waste incinerators subject to regulatio n under subpart O of 40 CFR parts 264 or 265.Page 192 of 527

explained that, under the rule structure as proposed, a NHSM ma y be classified as a waste simply due to a lack of a traditional fuel for comparison purposes. Comments acknowledge that the agency discussed the issue in the preamble to the proposed rule but the commenters disagree that the discussion provided any soluti on. Finally, commenters specifically requested that the EPA acknowledge the fact that a combustor designed for a particular NHSM fuel is dispositive that the NHSM is being legitimately burned for energy recovery. Response: The EPA disagrees with the asser tion that the agency has failed to provide a solution for units designed only to burn NHSMs. The EPA also disagrees with the assertion made by commenters that the fact that a combustor has designed a combustion unit for a particular NHSM fuel is dispositiv e that the NHSM is being legitimately burned for energy recovery. The EPA acknowledges and is aware of units built specifically to burn NHSMs. One example is facilities built to burn resinated wood. The EPA notes that units built to burn such NHSMs are lik ely to be able to burn similar traditional fuels. Using the example of units built to burn resinated wood, the EPA considers it reasonable to assume that these units could also burn clean wood and, therefore, could make comparisons to that traditional fuel . The agency also notes that is it is not awarePage 193 of 527

of any units

— and commenters have not identified any such units

— that can burn only NHSMs. The EPA has nonetheless provided what it considers to be a reasonable solution. As explained in the preamble to the
pro posed rule, the EPA advises combustors faced with such a situation to compare solid NHSMs to solid traditional fuels, such as coal or biomass, liquid NHSMs to liquid traditional fuels, such as oil, and gaseous NHSMs to gaseous traditional fuels, such as na tural gas. 64 In light of the explanation of “designed to burn” codified in the final contaminant legitimacy criterion, as well as industry comments that many combustion units can burn multiple types of fuel, the agency believes that its suggested approach a dequately addresses the issue. Finally, the EPA acknowledges that combustion units can and have been designed specifically to burn NHSMs and that such units can recover energy. The agency notes, however, that persons can and have also designed incinerators to dispose of certain waste materials and that such units can also recover energy. The agency, therefore, does not consider it dispositive that if combustion units are designed to burn a specific material, that material must be a legitimate non

- waste fuel
. d. Contaminant Comparisons Allowed

64 See 76 FR 80481.Page 194 of 527

The proposed revision to the contaminant legitimacy criterion for NHSMs used as a fuel included the following statement: “In comparing contaminants between traditional fuel(s) and a non

- hazardous secondary material, pe rsons can use ranges of traditional fuel contaminant levels compiled from national surveys, as well as contaminant level data from the specific traditional fuel being replaced.” The March 2011 final rule did not discuss the use of ranges when evaluating

co ntaminant data, nor did it discuss the use of traditional fuel data from national surveys. The December 2011 proposed rule included these concepts to clarify that persons are not required to adhere to a single comparison methodology, nor are they required to compare contaminants in their NHSMs to contaminants in the specific traditional fuel source they burn (or would otherwise burn). In both instances, the additional language clarifies, but does not change the intent, of the March 2011 final rule. Regardl ess of the specific methodology chosen, a comparison will have to be made for each contaminant or group of contaminants between the NHSM and a traditional fuel or traditional fuel group. Generators or combustors can use either traditional fuel data collect ed by the EPA or their own data forPage 195 of 527

traditional fuel comparison values. 65 Generators or combustors are responsible, however, for either providing NHSM comparison values in cases where testing is conducted. Examples of acceptable NHSM data could include both laboratory test results from a specific generator or combustor and industry

- recognized values provided by a national trade organization. Given data for a particular traditional fuel, the EPA noted in the proposal that many combustors would choose to base the traditional fuel comparison value on the upper end of its statistical range and that this approach was reasonable. Anything less could result in “traditional fuel” samples being considered solid waste if burned in the very combustion units designed to burn them. This was not the agency’s intent in the March 2011 final rule. 66 Given that selection (i.e., the range for traditional fuel contaminant values), the agency noted that acceptable NHSM comparison values would include the upper end of a statistical range, a calculation involving the mean and standard deviation or perhaps a single data point in situations where data are limited. The proposal reasoned that it would not be appropriate to compare an average NHSM contaminant value to

65 The EPA maintains an NHSM webpage with current information on contaminant levels in traditional fuels, examples of legitimacy determinations, and other information at http://www.epa.gov/ep awaste/nonhaz/define/index. 66 Traditional fuels, as defined in §241.2, are not required to meet the legitimacy criteria, and this scenario is only used to explain the logic behind basing a traditional fuel comparison value on the upper end of a statistical range.Page 196 of 527

the high end of a tr aditional fuel range, as the existence of an average implies multiple data points from which a more suitable statistic (e.g., range or standard deviation) could have been calculated. If each NHSM comparison value is comparable to or lower than its correspo nding traditional fuel value, the material would be considered to meet the contaminant legitimacy criterion. An initial assessment would not need to be repeated, explained the proposal, provided the facility continues to operate in the same manner and use the same type of NHSMs as when the original assessment was made. Despite presenting several approaches for calculating NHSM comparison values, such as the upper end of a statistical range or a calculation involving the mean and standard deviation, the
pro posal did not preclude other reasonable methodologies. In the context of an inspection or enforcement action, the agency will evaluate the appropriateness of alternative methodologies and data sources on a case

- by

- case basis when determining whether the co ntaminant legitimacy criterion has been met. The EPA noted in the proposal that contaminant testing is not required and that process knowledge may be sufficient for particular contaminants in particular NHSMs. Even when analytical testing is not necessary, the EPA’s regulations governing recordkeeping for units subject to emissions standardsPage 197 of 527

for boilers and process heaters issued pursuant to CAA section 112 require keeping a record to document the basis of non

- waste determinations under the part 241 criteri a (including the contaminant legitimacy criteria). See 40 CFR 40 CFR 63.11225(c)(2)(ii) for area source boilers and 40 CFR 40 CFR 63.7555(d)(2) for major source boilers. The EPA believes that the comments have not changed the basis for its decision to allo w the use of ranges and surveys of traditional fuel contaminant levels. Nor have comments changed the agency’s position that similar traditional fuels may be grouped for comparison purposes and that testing is not required in all cases. Thus, the EPA is ad opting the reasoning from the proposal and adjusting the contaminant legitimacy criterion accordingly for NHSM used as a fuel. The EPA has decided, however, to make a modification to the regulatory language of the December 2011 proposed rule based on

comm ents received. The final criterion issued today includes additional language clarifying the appropriate use of ranges when making contaminant comparisons between NHSMs and traditional fuels. Consistent with the rationale provided in the preamble to the pro posed rule, additional language now states that in order to use the full range of contaminant values in traditional fuels, persons should also account for the variability in NHSM contaminant levels. Any additional reasoningPage 198 of 527

for finalizing the revision with or without suggested modifications is described in the responses to comments below. Comment: Industry comments supported the proposed changes expressly allowing the use of ranges and national surveys of traditional fuel data, as did one state comment. One commenter stated that these changes provide a more practical approach to meeting the contaminant legitimacy criterion that recognizes the inherent variation of contaminants in NHSMs and traditional fuels. Several commenters supported the use of ranges by repeating the EPA’s rationale from the proposal that using anything lower would logic ally result in a determination that some traditional fuels should not be burned in combustion units designed to burn those fuels. Another commenter stated that these clarifications describe appropriate methods of handling data that are naturally variable a nd will result in fewer non

waste materials being arbitrarily identified as wastes. Environmental groups opposed the use of ranges to evaluate contaminants, expressing concern that C&D wood contaminant levels would be compared to the highest contaminant l evels for coal. These commenters suggested that averages or medians be used instead. Response: Based on our review of the comments received, the EPA is retaining the approach outlined in the proposed rule to expressly allow the use of ranges and tradition al fuel data fromPage 199 of 527

national surveys. As discussed in the proposed rule, the EPA considers it reasonable to allow combustors to use the range of contaminant levels present in traditional fuels because anything less could result in “traditional fuel” samples being considered solid waste if burned in the very combustion units designed to burn them. For this reason, the agency disagrees with comments stating that combustors should be limited to use of the average or median concentrations. The EPA acknowledges th at the revisions adopted as final in today’s rule would allow C&D wood contaminant levels to be compared to the highest contaminant levels for coal. The commenters do not specify, however, what C&D wood contaminant levels (averages or ranges) they are conc erned would be compared to the highest levels in coal. The agency points out that the proposed revisions were not intended to allow average C&D wood contaminant levels to be compared to the highest levels in coal. In light of the concerns expressed by thes e commenters, the EPA has modified the proposed language to provide additional assurance that such average

- to

- maximum comparisons, which the agency has already determined are inappropriate, will not be allowed under today’s final rule. The EPA has decided that such comparisons are inappropriate because, following the logic stated in the March 2011 final rule, average

- to

- maximum comparisons do not demonstrate that contaminants in these casesPage 200 of 527

could be considered a normal part of a legitimate fuel and are
not being discarded. 67 Today’s final criterion makes clear that the full range of traditional fuel contaminant values can only be used if persons also consider some measure of variability in the NHSM contaminant data. This will help to ensure that average to

m aximum comparisons will not be used to justify the combustion of NHSMs as non

- waste fuels. Comment: Industry comments supported the concept discussed in the proposed rule that the contaminant legitimacy criterion does not require the testing of contaminant levels in NHSMs in all cases. The proposal noted that persons can instead use expert or process knowledge to justify decisions to rule out certain constituents. The proposal also noted that initial assessments would not need to be repeated, provided the f acility continues to operate in the same manner and use the same type of NHSMs as when the original assessment was made. One commenter asked the EPA to confirm these statements, explaining that this policy will result in fewer NHSMs being arbitrarily ident ified as wastes. Another commenter stated that the flexibility provided by this policy will help ensure that regulated entities with varying levels of sophistication can better document that their NHSMs are non

- waste fuels.

67 See 76 FR 15523.Page 201 of 527

Environmental groups, on the oth er hand, commented that the EPA must require testing for contaminants, citing the extremely variable nature of C&D wood as a problem. Commenters expressed concern that a large amount of material is going to be generated as abandoned and foreclosed housing is torn down, and the potential for liberating vast amounts of lead and other urban toxics, to say nothing of arsenic and chromium from pressure

treated wood, has never been higher. Response: Based on a review of the comments received, the EPA is maintaini ng its position that contaminant testing is not required in all situations. Requiring testing in some situations is unnecessary. Where a NHSM generator, processor or combustor knows a contaminant will either not be present or be present at a level below th at in the appropriate traditional fuel or traditional product, the agency believes it is a reasonable and practical policy to allow persons to rely on either process knowledge or previous testing of the same material. The agency notes that there will be i nstances where testing is conducted and comparisons will have to account for the variability of contaminant levels in NHSMs, including lead concentrations in C&D wood. The agency also notes that today’s final rule does not change its previously stated posi tion thatPage 202 of 527

chromated copper arsenate

- treated wood (CCA wood) would likely have contaminant levels not comparable to traditional fuels. 68 Comment: One commenter requested that the EPA clarify what it means by the upper end of the statistical range. Citing the EPA’s statement in the proposal that “it makes sense to base the traditional fuel comparison on the upper end of the statistical range,” 69 the commenter asked for confirmation that the maximum values in the traditional fuel data set can be used for

com parison with a NHSM since all data corresponding to the traditional fuel are valid for comparison, not just values that are below some arbitrarily determined statistical parameter. Response: The word ‘ranges’ in the proposed contaminant legitimacy criteri on has been changed to ‘the full range’ in the final criterion issued today. This term more clearly indicates the agency’s intent to include all true values in between the minimum and the maximum. The agency has also separated the concepts of ranges and
t raditional fuel survey data in the regulatory language in order to make the criterion more transparent. The pertinent regulatory text in today’s final rule reads as follows: “In comparing contaminants between traditional fuel(s) and a non

- hazardous seconda ry material, persons can use data for traditional fuel

68 See 75 FR 31872. 69 See 76 FR 80481.Page 203 of 527

contaminant levels compiled from national surveys, as well as contaminant level data from the specific traditional fuel being replaced. To account for natural variability in contaminant levels, persons can use the full range of traditional fuel contaminant levels, provided such comparisons also consider variability in non

- hazardous secondary material contaminant levels.” Comment: Several commenters noted that the agency proposed to allow the use of “nat ional” surveys of traditional fuel data in the proposed contaminant legitimacy criterion and included several international data sources in its “Contaminant Concentrations in Traditional Fuels: Tables for Comparison” document. 70 Several commenters asked tha t the word ‘national’ be removed from the contaminant legitimacy criterion. Other commenters asked that the EPA either remove the word ‘national’ or clarify that international data and surveys from other nations are also acceptable data sources. Response: The EPA has retained the proposed language, including the word “national,” which expressly allows national surveys of traditional fuel data to be used in contaminant comparisons for NHSMs used as a fuel in combustion units. A statement that national surve ys can be used does not preclude

70 The EPA maintains a NHSM webpage with current information on contaminant levels in traditional fuels, examples of legitimacy determinations, and other information at http://www.epa.gov/epaw aste/nonhaz/define/index.Page 204 of 527

the use of appropriate international data. In fact, as the commenters recognize, the EPA included several international sources in its analysis of traditional fuels. These international sources were limited, however, to situations where no data or minimal data could be found from national sources or the agency had no reason to believe that data from national sources would be significantly different. At issue is whether the data are representative of traditional fuels that are purchased and burned at operating boilers in the United States. The agency has decided that it is reasonable to assume that national surveys of traditional fuels contain information about fuels purchased and burned at operating boilers in the United
S tates. Comment: One commenter argued that the traditional fuel database compiled by the EPA should include the USGS coal data from not only the United States but also from around the world because those fuels are currently in use. Response: The EPA has ma intained its decision not to reference the USGS COALQUAL database in its traditional fuel contaminant tables. It is the agency’s understanding that the COALQUAL database contains trace metal analyses for coal and associated rocks taken directly from coal b eds throughout the United States and that not all of these coal beds are currently being mined. It is also the agency’s understanding that as

- minedPage 205 of 527

coal typically undergoes a series of processing steps, including crushing, screening, washing and physical s eparation techniques to remove rock and other impurities prior to being blended into clean, graded and uniform coal products suitable for use in commercial boilers. 71 In comparison, the EPA contaminant tables referenced by commenters are based largely on a comprehensive dataset that contains approximately 32,000 records of pre

- combustion contaminant analyses performed on coal, wood, biomass and fuel oil samples that were actually used as fuel at boilers across the country. Thus, the agency has decided that the EPA dataset is more representative of contaminant levels in coal actually burned at operating boilers than the COALQUAL database. As a result, the EPA has decided not to use the COALQUAL database in developing the tables posted on the agency’s website
. We would also note that the decision not to use USGS data is consistent with the agency’s position that product fuel oils, as opposed to virgin crude oil, should be measured for purposes of contaminant comparisons. As stated in the proposed rule, neithe r unrefined crude oil nor gasoline is typically burned in combustion units regulated by CAA sections 112 and 129.

71 Speight, J.G. Synthetic Fuels Handbook: Properties, Process, and Performance. McGraw

- Hill, 2008. pg 141.Page 206 of 527

Similarly, as

- mined coal is not typically burned in combustion units regulated by CAA sections 112 and 129. Comment: One commenter suggested t hat for each contaminant or group of contaminants, either the UCL of the mean at a 90 percent confidence level or the UPL at a 90 percent confidence level for NHSMs could be compared to the maximum value for the appropriate traditional fuel. Response: Fir st, we would note that in the preamble to the recent proposed rule, the EPA indicated that when compared to the full range of contaminants in traditional fuels, suitable measures of NHSM contaminants would include the upper end of a statistical range, a ca lculation involving the mean and standard deviation or perhaps a single data point in situations where data are limited. The agency also noted that the discussion in the preamble did not preclude “other reasonable methodologies.” 72 With respect to the spec ific approaches suggested by the commenters, the EPA agrees with the approach of comparing the UPL at a 90 percent confidence level for each contaminant or group of contaminants in NHSMs to the maximum value for each contaminant or group of contaminants in the appropriate traditional fuel. Specifically, the UPL is an indicator of what a future measurement would be. In the context of NHSM contaminant levels, the UPL taken at a 90 percent confidence

72 See 76 FR 80481.Page 207 of 527

level would yield a number, and a combustor could be confide nt that 90 percent of the time, the next measured contaminant level would be at or below that number. The UPL considers both the variability of the contaminant distribution and the uncertainty surrounding what the true mean is. The comment suggested taking a maximum value for traditional fuel contaminant levels and comparing it to the UPL at a 90 percent confidence level. Because both metrics account for the variability present in contaminant distributions, the EPA would consider this approach to be a reaso nable methodology. The EPA does not agree, however, with an approach of using the UCL of the mean. That is, the UCL of the mean, regardless of the confidence level, is a measure of the mean and does not adequately factor in the variability present in both NHSMs and traditional fuel contaminant levels. The metric would be appropriate for a mean to mean comparison, but that is not what the commenter suggested. The comment suggested taking a maximum (which takes full advantage of the variability present in
tra ditional fuel contaminant levels) and comparing it to a mean (which ignores the variability present in NHSM contaminant levels). The EPA does not consider this approach to be a reasonable methodology. To be clear, the EPA does not object to the use of conf idence limits, or to the use of the UCL of the mean, onPage 208 of 527

their own grounds. However, the agency believes it is inappropriate to make a comparison of mean contaminant levels in NHSMs to maximum contaminant levels in traditional fuels.
Comment: One commenter suggested that the EPA allow entities to compare contaminants between NHSMs and traditional fuels on a pound of contaminants per Btu (lb/MMBtu) basis, as the agency said it would consider in the preamble discussion to the 2011 NHSM Final Rule. 73 Response: The EPA maintains its position that a direct comparison of contaminant levels, as opposed to the lb/MMBtu approach, is the most appropriate means of comparing contaminant levels. As was noted in the 2011 NHSM Final Rule, however, the agency may still consi der the lb/MMBtu approach as guidance is developed for implementation. 3. Categorical Non

- Waste Determinations for Specific NHSM Used as Fuels The new provisions at 40 CFR 241.4 were proposed to allow the EPA to list categorically certain NHSMs as non wastes

-- when used as a fuel in a combustion unit. Based on these categorical non

- waste determinations, facilities burning NHSMs that qualify for the provision will not need to demonstrate that the NHSM meets the legitimacy criteria on a site

- by

- site basi s. The EPA has determined that these NHSMs are categorical non

-

73 See 76 FR 15525.Page 209 of 527

wastes as described and are not discarded when used as a fuel in a combustion unit. Categorical non

- waste determinations only apply, however, to NHSMs that are burned as a fuel in combustion u nits for the purpose of recovery energy. Burning a NHSM fuel in a combustion unit for energy recovery assumes a set of basic design requirements that ensures excess air pollutants are not formed and emission requirements under the CAA are met. As discussed in section III.D.2.c of this preamble, such basic design requirements include abilities to load the material into the unit, ensure the material is well mixed and maintain temperatures within unit specifications. For example, burning a whole tire in a boil er that is only designed to burn tires that are chipped and/or dewired would not be considered a fuel burned in a combustion unit for the purpose of recovering energy. The agency is not including specific regulatory text regarding this point since we belie ve it is understood that to be burned for energy recovery, the combustion unit must be able to burn the NHSM as a fuel. a. Scrap Tires In the December 23, 2011, NHSM proposed rule, the EPA proposed the following regulatory language under 40 CFR 241.4
Non

- Waste Determinations for Specific Non

- Hazardous Secondary Materials When Used as a Fuel: “Scrap tires that are notPage 210 of 527

discarded and are managed under the oversight of established tire collection programs, including tires removed from vehicles and off

- specific ation tires.” Further, the addition of this provision (40 CFR 241.4(a)(1)) eliminated the need for the previous scrap tire provision at 40 CFR 241.3(b)(2)(i), 74 which has been removed and reserved in today’s final rule. Today’s rule finalizes the proposed p rovision without changes. Comment: One commenter stated that, “in its latest proposal, EPA eliminates the need for scrap tires to meet its legitimacy criteria and simply declares that scrap tires collected under an established tire collection program are n ot waste regardless of whether they meet the agency’s legitimacy criteria.” Response: The EPA disagrees with this comment. The EPA has not eliminated the legitimacy criteria for scrap tires. The categorical determination for scrap tires (as with all the categorical determinations in this rule) simply applies the agency’s non

- discard determination, made in the March 2011 rule and not reopened in this amendment, to the general category so

74 The scrap tire provision in the 2011 NHSM final rule is now removed and the sectio n reserved in today’s final rule: “(b) The following non

- hazardous secondary materials are not solid wastes when combusted: (2) The following non

- hazardous secondary materials that have not been discarded and meet the legitimacy criteria specified in para graph (d)(1) of this section when used in a combustion unit (by the generator or outside the control of the generator): (i) Scrap tires used in a combustion unit that are removed from vehicles and managed under the oversight of established tire collection programs.”Page 211 of 527

that case

- by

- case determinations as to legitimacy would not need
to be made by each facility. For the scrap tire category, scrap tires managed under established tire collection programs and used as a fuel need not make case

- by

- case legitimacy determinations. Moreover, the commenter has given us no information that the crit eria are not met. In fact, the commenter simply repeats the argument made in previous rulemakings that the material is always a waste regardless of legitimacy criteria. Comment: Several commenters suggested that scrap tires should not have more restrictio ns under 40 CFR 241.4(a) for the categorical non

- waste status than does resinated wood. The non

waste determination for scrap tires, as proposed in 40 CFR 241.4(a)(1), read “Scrap tires that are not discarded and are managed under the oversight of establis hed tire collection programs, including tires removed from vehicles and off

specification tires.” In comparison, the resinated wood description, as listed in 40 CFR 241.4(a)(2), is “Resinated wood.” The commenters reasoned that if all resinated wood can be

non - waste, then all scrap tires should also qualify (regardless of the origin). Response: Please see the EPA’s response in the resinated wood section below (section III.D.3.b of this preamble) relating to the 241.4(a) criteria for resinated wood and the comparisonPage 212 of 527

to scrap tires. That response goes into detail explaining why the extra criteria are not needed for resinated wood and related discard issues. In addition, as noted previously in the NHSM rulemaking record (see docket EPA

- HQ

- RCRA

- 2008

- 0329), num erous tire piles have been created in the past whereas this is not the case for resinated wood used as fuel. The existence of these historic tire dumps demonstrates that some tires have not been treated as a valuable commodity therefore necessitating the

a dditional discard qualification in regulatory text. The specific tires described in the categorical determination are handled as a valuable commodity and do not include discarded tires. Comment: A commenter suggested that the EPA should add “off

- specifica tion tire components” to the regulatory language. This revision would be in addition to the proposed text at 40 CFR 241.4(a)(1) that adds “off

- specification tires.” Response: Off

- specification tire components are covered in the 40 CFR 241.4 categorical no n - waste determinations for scrap tires. The term ‘scrap tire’ is a general term for tires and can include, for example, whole tires, chipped tires, off

specification tires or off

- specification tire components (i.e., tread, sidewall or base) that are remove d from vehicles or are generated by tire manufacturers, including retailers or other parties involved in the distribution and sale of new tires. ThisPage 213 of 527

formulation was also stated in the December 2011 NHSM proposal 75 and is adopted for today’s final rule. The EPA sees no difference between tires and their various components. Thus, the EPA does not believe it necessary to modify the rule to include “off

- specification tire components” in the codified definition. They are understood to be included in the categori cal non

- waste provision. Comment: Many commenters mentioned the difficulty in complying with the regulations since it is very difficult to distinguish between tires removed from vehicles (and off

specification tires) versus tires from other origins. In re gard to this issue, one commenter stated, “a combustor cannot know the origin of the tire

- derived fuel it is buying. In its response to requests for reconsideration of the CIWSI CISWI rule, the EPA responded to this issue by recognizing that it is not poss ible for a combustor to know the source of all NHSM fuel and declined to impose this requirement stating: "Rather, it is sufficient that the ultimate user verify that it is obtaining tires from an established tire collection program, which program can pro vide the user with reasonable assurance that it manages tires carefully from point of collection to point of burning and which does not

75 See 76 FR 80483.Page 214 of 527

receive tires which have been abandoned in landfills or otherwise. 76 Fed. Reg. 28318, 28322 (May 17, 2011)." Therefore, the commenter requests that the EPA codify this statement in the NHSM rule and expressly allow combustors to rely upon certifications of fuel suppliers that the fuel sold is not a solid waste. Another commenter said that for the EPA to require a tire
sto rage facility to maintain separate classifications of tires (i.e., separating discarded tires from tire dumps from other tires) is not reasonable, because inspectors and operators would not be able to tell the piles apart. The EPA’s current definition of s crap tires would place undue financial hardship on contractors and storage facilities. Response: The EPA has decided that a regulatory statement on this matter is not necessary since the actual requirement for the combustor to determine where its tires co me from when they are coming from an established tire collection program (or a contractual agreement) is provided for under the CAA and interpretations provided for that regulation. For example, major source boilers have a recordkeeping requirement for a n on - waste determination at 40 CFR 63.7555 “What records must I keep?” Within those regulations for major source boilers, it requires the combustor to demonstrate that NHSMs are a non

- waste. To the extent that a combustor believes it appropriate, they mayPage 215 of 527

re quest haulers to verify that the tires would qualify as non

waste under 40 CFR 241.4 when combusted. If there is question about the origin of the tires, the EPA inspectors will not assume that tires are from discarded sources. As we note in the Federal R egister notice (76 FR 28318, 28322), “It is EPA’s position that ultimate users are not responsible for knowing the source of all tires obtained from an established tire collection program... EPA does not interpret this language as requiring knowledge of each individual tire as this is a practical impossibility... users also should not assume that tires from established programs which participate in occasional cleanup days are discarded

– both because there is no information that the tires from the cleanup effor ts were discarded (and these programs are designed to prevent discarding) and whether the kiln received tires from the sporadic cleanup days in any case.” The Federal Register notice that the commenter cited (76 FR 28322) and a related letter to the doc ket (“Memorandum. Combustion in a Cement Kiln and Cement Kilns’ Use of Tires as Fuel.” April 25, 2011, Document ID: EPA

- HQ

- OAR

- 2002

- 0051

- 3582) provide sufficient guidance. The agency believes this issue does not merit additional regulation for the hauler. b. Resinated WoodPage 216 of 527

In the December 23, 2011, proposed rule, the EPA proposed to designate in regulatory text that resinated wood is not a solid waste when used as a fuel. In making this determination, the agency analyzed these materials using the legitimacy criteria, concluding that resinated wood clearly is managed as a valuable commodity and has meaningful heating value and is used as fuel. 76 While stating that these materials may not always meet the regulatory contaminant legitimacy criterion in every situ ation, we proposed to list categorically resinated wood as a

non - waste fuel because, after balancing the regulatory legitimacy criteria and other relevant factors, the EPA determined that resinated wood that is used as fuel represents an integral component of the wood manufacturing process and, as such, is not being discarded when burned as fuel. Specifically, we noted the extent to which resinated wood is used as fuels throughout the wood manufacturing industry and that the use of resinated wood as fuel i s essential to the wood manufacturing process. We also noted the prevalence of wood product plants that have been designed specifically to utilize these residuals for their fuel value; in fact many (if not most) wood products plants would not be able to op erate as designed without the use of these materials. This determination was previously codified under 40 CFR 241.3 (b)(2)(ii) of the NHSM

76 See 76 FR 80483.Page 217 of 527

final rule, provided the resinated wood met the legitimacy criteria in 40 CFR 241.3(d)(1). However, based on the avai lable information, as well as how this material is handled and used in the process, resinated wood is not being discarded when used as a fuel, and thus, should not be considered a solid waste when burned as a fuel. The EPA proposed to codify this determina tion by categorically listing resinated wood as a non

- waste fuel in 40 CFR 241.4(a)(2). 77 By specifically listing it as a non

- waste fuel, combustors of this material would not need to demonstrate that they meet the legitimacy criteria on a site

- by

- site basi s. The EPA finds that this reasoning is supported by the entire rulemaking record, as explained in the December 2011 proposal, which rationale is adopted for the final rule as further supported by responses to comments below. Thus, the agency has determine d to list categorically resinated wood as a

non - waste fuel. In addition, after considering comments received on the proposal, the agency is revising the definition of “resinated wood,” as codified in 40 CFR 241.2. Comment: Most comments on this issue were supportive of a categorical determination that resinated wood is a non

- waste fuel. One commenter maintained that the record for this rulemaking clearly establishes that resinated wood is highly valued within the wood products industry for its high fuel

77 See 76 FR 80483

- 80484.Page 218 of 527

va lue, stating that “Many facilities rely on mixing of these low moisture content wood materials with higher moisture content wood materials to manage and optimize combustion.” This same commenter also stated that “there exists within the wood products indus try a developed market for purchase and sale of resinated wood between independent companies.” In fact, many
wood

- fired boilers at wood products plants that do not generate sander dust have been retrofitted with sander dust injection burners so that sander dust can be properly combusted in those units, taking full advantage of the heat energy of sander dust. Another commenter stated that “resinated fuels have been an integral part of the composite wood product industry’s production process since the indust ry was established decades ago. As such, facilities’ combustion and energy systems were designed and constructed to utilize most if not all of their own wood and wood by

- products, including resinated trim and sander dust. Excluding resinated wood fuels fro m our manufacturing processes would require significant re

- engineering of our facilities and add insurmountable operating costs in order to substitute fossil fuels, as well as to transport and dispose of resinated wood fuels. Any other result would effecti vely make it nearly impossible for these manufacturing facilities to continue operations.” This same commenter also noted that “many of ourPage 219 of 527

facilities rely exclusively on resinated wood for its fuel and have limited access to substitutes.” Another comment er provided two examples of mills that utilize nearly 100 percent of sander dust, either to create new product as part of the manufacturing process or as fuel. In addition, two state commenters supported the proposed categorical non

- waste determination for resinated wood. Response: Nearly all of the comments received regarding the proposed categorical non

- waste determination were supportive of categorically listing resinated wood as a non

- waste fuel when burned in combustion units for energy recovery. As n oted above, the agency did receive a few additional examples of how the use of resinated wood as a fuel is an integral part of the wood manufacturing industry’s production process (e.g., the facilities that would have to be significantly re

- engineered if
t hey could not use resinated wood for its fuel value and the mills that use 100 percent of the sander dust it generates, either by recycling it back into the process or burning it for fuel). Although we received one comment critical of the EPA’s proposed listing of resinated wood as a non

- waste fuel (addressed below), we did not receive any comments that argued or suggested that the use of resinated wood as a fuel is not an integral component of the wood manufacturing process. Thus, wePage 220 of 527

agree with commenters who encouraged the EPA to finalize resinated wood as a categorical non

- waste fuel and will finalize this determination in today’s rulemaking. Information in the record for this rulemaking clearly establishes that resinated wood is managed as a valuable commodity (40 CFR 241.3(d)(1)(i)) and has meaningful heating value and is used as a fuel in combustion units that recover energy (40 CFR 241.3(d)(1)(ii)). 78 In addition, we generally have dete rmined that most resinated wood meets the contaminant legitimacy criterion as well ((40 CFR 241.3(d)(1)(iii)), although we acknowledge that in some instances these materials may have levels of formaldehyde that are not comparable to traditional fuels. 79 The EPA confirms the position discussed in the proposal and adopts it as its final rationale that there are instances where it is appropriate for the EPA to balance the regulatory legitimacy criteria with other relevant factors in order to determine whethe r a material is a legitimate fuel or is merely being discarded by being combusted. We have determined that resinated wood is one such example. Although resinated wood may not meet the regulatory contaminant legitimacy criteria in every

78 See, e.g., 76 FR 80483. See also background document developed in support of the December 23, 2011, proposed rulemaking titled, “Resinated Wood, Scrap Tire, and Pulp/Paper Sludge Support Document” (EPA

- HQ

- RCRA

- 2008

- 0329

- 1880). 79 Id.Page 221 of 527

situation, it is cle ar that resinated wood is still a “legitimate” product fuel after one considers how integrally tied the use of resinated wood as a fuel is within the wood manufacturing process and industry. Nearly all comments received on this point concurred with this as sessment. Thus, in today’s final rule, we are codifying the determination that resinated wood, based on all information and the totality of the circumstances, is a non

- waste when used as a fuel. Comment: One commenter, however, stated that the EPA’s
propo sed categorical determination that resinated wood is a non

waste fuel is unlawful and arbitrary. The commenter stated that the EPA is now proposing to simply “exempt” resinated wood altogether, regardless of who burns it and whether it meets the legitimacy criteria. According to the comment, the EPA acknowledges that the formaldehyde levels in resinated wood would not always meet its contaminant legitimacy criterion

– i.e., would not be comparable to the levels in any fuel that companies would otherwise bur n. The commenter states that the EPA also acknowledges that burning resinated wood increases the emissions of formaldehyde, but nonetheless finds that, “In general the motivation to use resinated wood as a fuel, even with the slightly higher formaldehyde l evels, predominates over the motivation to dispose of the formaldehyde.” The EPA’s decision to remove the limits on the exemption for resinatedPage 222 of 527

wood and to “categorically” declare resinated wood to be a non

waste

– regardless of who burns it, regardless of how contaminated it is, and regardless of the reality that some companies may be burning resinated wood as a cheap means of disposing of their toxic formaldehyde wastes

– underscores this point. The comment continues that the EPA nowhere claims that
comp anies burning resinated wood that they have not generated pay for these materials. Indeed, the EPA does not deny that these companies are paid to take the resinated wood they burn. Thus, the EPA provides no reason to believe that the resinated wood that is burned by a company other than the one that generated it has not been discarded by the company that generated it. Even under the EPA’s own view of the meaning of discard, resinated wood burned by companies other than the generator of the resinated wood wo uld be waste but for the agency’s declaration that it is not waste. The commenter also states that the EPA admits that some companies may burn resinated wood because they want to dispose of the formaldehyde it contains (i.e., to dispose of the contaminat ed wood rather than to recover energy). Moreover, the levels of formaldehyde contamination in some resinated wood would exceed the EPA’s legitimacy criteria, but for the EPA’s declaration that these criteria do not apply. For these reasonsPage 223 of 527

as well, resinat ed wood is discarded even under the EPA’s own view of what that term means. Further, the comment states that sources’ alleged “motivation” for burning a material is to recover energy rather than to destroy the wood and the contaminants it contains

–

assum ing arguendo that a source’s motivation can even be determined

– does not show that material is not a waste. Rather, resinated wood is a waste because it is discarded within the meaning of RCRA. Notably, the EPA does not suggest that there is any use for r esinated wood that has been discarded other than

– assuming it is a “use” at all

– burning it. Moreover, establishing a “motivation”

- based test for whether resinated wood is or is not a waste conflicts with and defeats the CAA. Thus, the agency’s categoric al declaration that resinated wood is not a waste is unlawful. Response: The EPA strongly disagrees with the commenter’s characterization of its categorical determinations. In making categorical determinations, the agency is not “exempting” these material s from regulation as a solid waste (i.e., if not for this “exemption,” these materials would otherwise be regulated as solid waste). Rather, the EPA has determined that the specified NHSMs are not solid waste when used as fuels. Further, in making categori cal determinations, the EPA is not saying that the legitimacy criteria are not relevant. In proposing thePage 224 of 527

categorical non

- waste determination for resinated wood, the agency stated we were “balancing the legitimacy criteria and other relevant factors based on the fact that resinated wood residuals that are used as fuels represents an integral component to the wood manufacturing process and, as such, resinated wood residuals are not being discarded when burned as fuels.” 80 This remains the agency’s final findi ng in this rule. Regarding the level of contaminants in resinated wood, the agency is not saying that resinated wood is a non

- waste fuel “regardless of how contaminated it is,” as the commenter suggests. Based on all available information, the agency has

c oncluded that resinated wood meets the legitimacy criteria for all contaminants with the possible exception in some situations of formaldehyde. In focusing specifically on formaldehyde, we also have stated that we have limited information regarding formald ehyde levels

— that is, resins and adhesives containing formaldehyde react within the resin curing process leaving “free formaldehyde at levels less than 0.02 percent (or 200 ppm), but noted that levels will be reduced further due to new national rules being developed by the CARB Composite Wood ATCM, per new Public Law 111

- 199. Thus, we have not said that contaminants do not matter. Rather, we have carefully analyzed contaminant levels in resinated wood and have determined, based both on

80 See 76 FR 80483.Page 225 of 527

contaminant levels, a s well as how the use of these materials represents an integral part of the wood product manufacturing process, that resinated wood materials are a legitimate non

waste fuel. Further, we do not concede, as the commenter contends, that some companies burn resinated wood to destroy contaminants

— in fact, we have determined just the opposite. We have determined that companies burning resinated wood do so because such an activity is integrally tied to their production process, not to dispose of the formaldehyde . This determination is based on that extent to which resinated wood is used as fuels throughout the wood manufacturing industry, as well as the fact that the use of resinated wood as fuel is essential to that industry (i.e., plants have been designed to u se these materials as fuels and would be unable to operate if resinated wood was not available as a fuel source). Regarding the comments that the EPA acknowledges that burning resinated wood increases emissions of formaldehyde, the agency needs to correct this characterization. First, in the 2011 NHSM final rule, we stated that the criterion or test in determining the contaminant legitimacy criterion is based on the level of contaminants in the secondary material itself and notPage 226 of 527

by comparing the differences in emissions. 81 However, responding to comments we received regarding emission levels associated with burning resinated wood as a fuel, the agency determined that the amount of formaldehyde that is emitted from burning resinated wood residuals is in fact li kely to decrease, given that Public Law 111

- 199 will reduce formaldehyde levels in these materials. 82 Regarding the commenter’s statement that companies that burn resinated wood that they have received from offsite do not pay for it, the EPA disagrees with the argument put forth by the commenter as the facts in this instance do not support such a premise. As noted in the March 2011 final rule, inter

- company transfers of resinated wood residuals are typically managed through buy

- sell contracts and 6 percent of resinated wood residuals are sold into the fuel market and are used as either “furnish” (i.e., raw materials) or fuel at the receiving facilities. 83 In addition, the EPA received additional comments on the proposed rule stating, “...there exists within the wood products industry a developed market for purchase and sale of resinated wood between independent companies.”

81 S ee, e.g., 76 FR 15502. 82 Id. 83 See 76 FR 15500.Page 227 of 527

Moreover, while contractual arrangements can be used as evidence that the material is managed as a valuable commodity and that discard is n ot occurring when a material is transferred beyond the control of the generator, the price of an NHSM is not, by itself, dispositive of whether the material is or is not a waste. The main indication that resinated wood residuals are not solid waste is the fact that they are used as fuels in a way that represents an integral component to the wood products industry. As the EPA noted in the March 2011 final rule, “resinated wood residuals transferred off

- site are utilized in the same manner as self

- generated r esinated wood residuals (i.e., contained in the same bins as furnish materials used in the product, transferred via conveyors or ducts), which the plants are specifically designed to burn as a fuel, [and therefore] we agree that this does not constitute di scard.” 84 The comment that the agency has simply declared that resinated wood is a non

- waste “regardless of who burns it” is a mischaracterization of this categorical non

- waste determination. Based on all information provided to the agency, we have determin ed the use of resinated wood as a fuel is an integral part of the industry’s production processes and that these materials are managed as valuable commodities (i.e., fuels), have meaningful heating value and are used in combustion units

84 Id.Page 228 of 527

that recover energy regardless of whether these materials remain within the control of the generator or are transferred offsite to another facility. On the other hand, we have no information that facilities are burning these materials merely to get rid of them (i.e., discard ). The EPA finds irrelevant the commenter’s statement that the EPA is looking to a source’s motivation for using a material as a fuel conflicts with and defeats the CAA. The issue, rather, is whether motivation is relevant to a waste determination under
R CRA. The D.C. Circuit confirmed the relevance of motivation in determining whether a recycled material is a waste. See, API v. EPA, 216 F.3d at 58 (court criticizes the EPA for not saying why it has concluded whether recycling motivation predominates over a disposal motivation). In this case, it is clear that the motivation for burning the resinated wood is to utilize its inherent value as a fuel and not for disposal. Commenters have provided the agency with information that facilities generating and managi ng resinated wood residuals consider these materials to be an integral part of their production process

— both in the value these materials provide as being a critical source of energy as well as being recycled back into the manufacturing process to create m ore wood products. Thus, we are not convinced that a facility that considers the use of resinated wood as a fuel to be an integral part of its production processes, as hasPage 229 of 527

been established in the record, is motivated to discard these materials by burning t o get rid of them. Comment: A few commenters stated that the EPA is not consistent in how discarded materials are designated as solid waste. In particular, the commenter stated that the EPA was proposing to list as a categorical non

- waste fuel in 40 CFR pa rt 241.4 resinated wood regardless of whether it is previously discarded, while the agency would require processing for scrap tires that have been discarded in landfills. Response: The agency disagrees that its treatment of resinated wood is inconsistent w ith its treatment of scrap tires. Nowhere does the agency state that resinated wood would be considered a non

- waste fuel “regardless of whether it is previously discarded.” The EPA, based on all information available, has determined that resinated wood is not being discarded when used as fuel, given the fact that resinated wood residuals that are used as fuels represent an integral component of the wood manufacturing process. If a shipment of resinated wood residuals was disposed of in a landfill, it would be a waste. In addition, if a shipment of resinated wood residuals were disposed of and later recovered to be used as a fuel, as is the case with scrap tires that are extracted from landfills, this would be a different scenario and would not be included wi thin the categorical listing in 241.4(a)(2).Page 230 of 527

As the record clearly shows, resinated wood is routinely handled and managed as a valuable fuel product within the wood products manufacturing industry. As noted in the rulemaking record (see docket EPA

- HQ

- RCR A

- 2008

- 0329), numerous scrap tire piles have been created in the past and it is a common practice to recover abandoned tires from tire piles and use them for fuel. This is not the case for resinated wood. Comment: While supportive of the agency’s proposed listing of resinated wood as a non

- waste fuel in 40 CFR part 241.4, two commenters suggested that the agency revise the definition of “resinated wood” as codified in 241.2. Currently, “resinated wood” is defined as, “wood products (containing resin adhesiv es) derived from primary and secondary wood products manufacturing and comprised of such items as board trim, sander dust, and panel trim.” However, these commenters request the EPA to revise this definition in order to clarify that the “spectrum of resina ted materials currently used as fuels throughout the wood product manufacturing process are included in the definition.” Thus, commenters urge the EPA to revise the definition of resinated wood as follows: “Resinated wood means wood products (containing bi nders and adhesives) produced by primary and secondary wood products manufacturing. Resinated wood includes residues from the manufacture and use of resinated wood,Page 231 of 527

including materials such as board trim, sander dust, panel trim, and off

- specification resi nated wood products.” The suggested revised definition proposes two changes. First, the suggested definition replaces the phrase “containing resin adhesives” with the phrase, “containing binders and adhesives.” The second suggested revision to the definit ion is the specific inclusion of “off

- specification resinated wood products.” Commenters have indicated that these materials include materials that do not meet manufacturing specifications or are otherwise physically marred or damaged and thus, are not sol d in the marketplace. This class of materials would not be expected to be chemically different than the resinated wood products that meet the manufacturing “on

- spec” requirements. For example, off

- specification resinated wood products would not be expected to have higher amount of resins (and therefore contaminants) than their on

- specification counterparts. Commenters have indicated that off

- specification resinated wood products are identical to their on

- specification counterparts chemically and only differ in that they are do not meet a manufacturing quality or standard. Response: The agency recognizes that in order for a categorical non

- waste determination to be meaningful and effective, it must be clear about the universe of materials that such a categori cal non

- waste determination encompasses. Thus, wePage 232 of 527

agree with commenters who suggested specific revisions to the definition of “resinated wood” contained in part 241.2. Specifically, the EPA agrees that these revisions create a definition that more accurate ly captures the scope of resinated wood and is more representative of the resinated materials currently used as fuels throughout the wood product manufacturing process. First, by including the terms “binders” and “adhesives,” the universe of materials that we consider to be within this definition should be more clear, as these terms are widely used and accepted within the wood products manufacturing industry. With respect to the inclusion of off

- specification resinated wood products, the EPA finds it appro priate to include this class within the definition of resinated wood. We note, however, that to the extent that a facility has reason to expect that the off

- specification wood products are off

- spec for chemical reasons, such that the levels of contaminants are expected to be greater than their on

- spec counterparts, the EPA would not consider such materials to be within the scope of this definition. The agency will make this point more clear by specifying in the definition that the term “off

- specification

re sinated wood products” are off

- spec due to the fact that they do not meet a manufacturing quality or standard. Thus, in today’s final rule, we are codifying the definition of resinatedPage 233 of 527

wood as follows: “Resinated wood means wood products (containing binder s and adhesives) produced by primary and secondary wood products manufacturing. Resinated wood includes residues from the manufacture and use of resinated wood, including materials such as board trim, sander dust, panel trim and off

specification resinated wood products that do not meet a manufacturing quality or standard ” ( emphasis added). Comment: One commenter noted that there are additional secondary materials produced by the wood manufacturing industry that are similar to resinated wood and, thus, shou ld also be considered a non

- waste fuel. The production of flooring and furniture creates final finishing trim, sander dust and process breakage that are both solid and resinated wood materials. In some cases, these materials are coated with finish material s used to color and protect the finished product. The commenter (a utility) indicated that their facilities receive these materials from furniture and flooring manufacturers and utilize them to offset the fuel load from fossil fuels due to their high heat capacity. Thus, the commenter requests that the EPA expand its definition of resinated wood materials to include these additional wood manufacturing secondary materials as non

- waste fuels or otherwise describe the circumstances under which these additional materials would be considered a non

- waste fuel.Page 234 of 527

Response: It is possible that these materials (or some of these materials) could be within the definition of “resinated wood,” as codified in 40 CFR part 241.2; however, commenters have not provided the age ncy with information regarding the factors involved in determining whether these additional types of coated materials are legitimately used as product fuels. That is, commenters have not provided information regarding whether these “finishing materials” co uld have contaminant concerns and whether they are routinely used as fuels. Subsequent to this rulemaking, the agency would welcome information regarding these materials in order to make an informed decision regarding whether these materials fit within the definition of “resinated wood.” Alternatively, the commenter may petition the agency to receive a non

- waste determination per the petition process established in 40 CFR 241.3(c) if the commenter believes that this material may not be within the definition of “resinated wood.” 4. Rulemaking Petition Process for Other Categorical Non

- Waste Determinations (40 CFR 241.4(b)) The EPA recognizes that there may be other NHSMs that can also be considered non

- wastes when used as fuels in combustion units when bal ancing the legitimacy criteria and other relevant factors. Thus, under today’s rule, we are finalizing the process outlined in the proposed rule whereby persons can submit aPage 235 of 527

rulemaking petition to the Administrator where they can identify and request that additional NHSMs be listed in section 241.4. The petition process is similar to 40 CFR 260.20, where any person may petition the Administrator to modify or revoke any provisions of the hazardous waste rules and where procedures governing the EPA’s action o n those petitions are established. The 40 CFR 260.20 standards reflect normal, informal rulemaking procedures under the APA and thus, serve as an appropriate model for the NHSM rulemaking petitions under this section. In the context of a rulemaking petition under section 241.4(b), any person can petition the Administrator for a regulatory amendment to identify and request that additional NHSMs be included on the list of materials in section 241.4(a) that are not solid w astes when used as a fuel in a combustion unit. To be successful, the petitioner needs to demonstrate to the satisfaction of the Administrator that the proposed regulatory amendment involves a NHSM that has not been previously discarded (i.e., was not init ially abandoned or thrown away), or if discarded, has been sufficiently processed into a legitimate fuel. The petitioner must also demonstrate that the material is used as a non

- waste fuel in a combustion unit because it either meets the legitimacy criteri a, or, after balancing the legitimacy criteria with other relevant factors,Page 236 of 527

such NHSM(s) is not a solid waste when used as a fuel in a combustion unit. If the applicant believes that the NHSM is a legitimate product and not discarded despite not meeting t he legitimacy criteria, additional information must be submitted to explain or describe why such NHSM should be considered a non

- waste fuel. Possible factors to address include, but are not limited to: The extent that use of the NHSM has been integrally ti ed to the industrial production process. Information can include combustor design specifications, the extent that use of the material is integrated across the industry and the extent that use of the NHSM is essential to the industrial process, The extent that the NHSM is functionally the same as the comparable traditional fuel, and Other relevant factors. The application is required to include: (1) the petitioner’s name and address; (2) a statement of the petitioner’s interest in the proposed action; (3) a description of the proposed action, including the specific NHSM, the industry (i.e., NAICS code) and functional use (i.e., industrial functional code listed in 40 CFR 710.52(c)(4)(i)(C)); and (4) a statement of the need and justification for the proposed action, including any supporting tests, studies or other information. Where such NHSM(s) do not meet the legitimacy criteria, the applicant must explain why such NHSM(s) should be considered aPage 237 of 527

non - waste fuel, balancing the legitimacy criteria with other

re levant factors. Under this petition process, the Administrator makes a tentative decision to grant or deny a petition and then publish notice of such tentative decision, either in the form of an ANPRM, a proposed rule or a tentative determination to deny the petition, in the Federal Register for written public comment. The Administrator could, at its discretion, hold an informal public hearing to consider oral comments on the tentative decision. After evaluating all public comments, the Administrator makes a final decision by publishing in the Federal Register a regulatory amendment or a denial of the petition. Comment: One commenter does not support use of the legitimacy criteria, as provided in the proposed section 241.4(b)(3) to make a determination. A m aterial which has not been discarded is, by definition, not a solid waste. However, if the EPA believes that other factors still should be considered, then the only other factor which should be considered is whether the material is being used legitimately as a fuel. The remaining legitimacy criteria are (and should be) irrelevant. Response : As discussed in the 2011 NHSM final rule, “legitimacy” is shorthand for referring to NHSM that are not abandoned or thrown away, are saved and are reused by beingPage 238 of 527

burned for their value as a fuel. 85 The legitimacy criteria are the factors needed to be examined to make this determination. For example, it is relevant how the NHSM is managed and its heating value since burning materials that have minimal or limited heating va lue shows the material is being burned for discard and not energy recovery. In addition, the extent to which contaminants are present in NHSMs may also indicate that the real reason for burning the secondary material is simply to destroy or discard them

— re ferred to as ‘‘sham’’ recycling. Thus, the agency is not simply ‘‘punting’’ to its legitimacy criteria but believes they provide a valid basis for showing that a NHSM is more commodity

- like than waste

- like.
Comment : The current petition process is limited to NHSMs when used as fuels. Absent from this petition process are NHSMs used as ingredients and previously discarded materials that meet the fuel legitimacy criteria. We do not understand this distinction and urge the EPA to expand both the current and
pr oposed petition processes to allow for non

- waste determinations for a wider range of NHSMs. Response : In general, the 40 CFR part 241 regulations establishes a self

- implementing approach for NHSM that can consider site

- specific information, if necessary (i .e., facilities will make a self

- determination of whether the non

-

85 See 76 FR 15471.Page 239 of 527

hazardous secondary fuel or ingredient in question meets the regulatory criteria). We note it is the EPA’s intention to indicate in these rules, as clearly as possible, which non

hazardous m aterials used as fuels or ingredients in combustion units are or are not considered solid waste based on the criteria laid out in regulatory text. The agency expects this self

- implementing approach will govern the majority of situations, including NHSMs us ed as ingredients and NHSMs processed from previously discarded materials. We would also note that the regulated community prior to proposing the December 2011 proposed rule and commenters to that proposed rule did not provide any instances where ingredie nts are combusted or are processed from previously discarded material that would be a candidate for listing categorically. Therefore, we do not believe it necessary to modify the proposed rule to address this situation. However, to the extent that there ar e instances where such materials do exist, persons can always petition the EPA to modify the rules, including allowing ingredients that are combusted to be categorically listed to account for such materials. Comment: In the NHSM Proposal, the EPA recogni zes that a material can have levels of contaminants higher than traditional fuels, but still be combusted for a legitimate, energy

- producing purpose (see 76 FR 80483 discussing resinated wood). The EPAPage 240 of 527

also has proposed that this is true for hazardous seco ndary materials as well (see 76 FR 44094, 44122; July 22, 2011). Notwithstanding this admission, the EPA is not proposing to amend its legitimacy criterion for contaminants to make it a consideration, rather than a mandatory criterion. Thus, the EPA's NHS M Proposal is internally inconsistent. Under 40 CFR 241.3(d)(iii), any material that has contaminants in concentrations higher than those found in traditional fuels is automatically considered a waste, no matter how integral the use of the material is to t he manufacturing process or how legitimate the combustion is to the purpose of energy recovery. In contrast, under proposed 40 CFR 241.4, EPA recognizes that materials can have high levels of contaminants and still be non

waste material being legitimately combusted for energy recovery. To justify this inconsistency, the EPA argues that it needs to make a case

- by

- case determination that a material with higher levels of contaminants is a non

- waste to “prevent sham recycling” (see 76 FR 80482). Response: The EPA disagrees with the comment that the mandatory nature of the self

- implementing § 241.3 standards (including the contaminant legitimacy criterion) for individual facilities is inconsistent with the non

- waste determinations outlined in § 241.4. In particu lar, the legitimacy criteria (including the contaminant legitimacy criterion) must be met under the self

-Page 241 of 527

implementing standards for individual facilities outlined in § 241.3, but the same criteria may be balanced by the EPA with other relevant factors unde r the categorical non

- waste determinations outlined in § 241.4. These differences are necessary and appropriate. Where a particular NHSM may not meet all the legitimacy criteria outlined in §241.3(d)(1), but the material is being used as a legitimate fuel , the agency has decided it is necessary to require a formal determination ( i.e. , not a self

- implementing decision) to prevent materials from being burned for discard under the guise of recycling. Furthermore, the agency has decided that such a determinati on should be subject to public notice and comment. In cases where the difference between recycling and waste treatment is difficult to distinguish, as is the case when elevated levels of contaminants are present, the potential for abuse is likely, and thus , regulatory oversight is appropriate when making a waste/non

- waste determination. This approach is also consistent with what the EPA proposed for the hazardous secondary material rule cited by the comment

— that is, the balancing test would be used by the E PA in a petition process, not as a self

- implementing determination.
Comment : One commenter requested that the EPA should specifically recognize in the categorical petition that the existence of a supply contract between a generator of NSHMs andPage 242 of 527

a combust or , with specifications that the NHSM must meet, should be considered dispositive evidence that the NHSM is not a waste and is combusted for energy recovery, not disposal. Response: We disagree with the commenter that the mere existence of a contract betwe en the generator and combustor is dispositive evidence of the material being a non

- waste. However, existence of a contract is a factor to be considered in a categorical non

- waste determination. For example, under 40 CFR 241.4(a)(1), scrap tires managed und er established tire collection programs are a categorical non

- waste and the definition of “established tire collection program” (40 CFR 241.2) explicitly recognizes contracts as evidence that the material has not been discarded. Specifically, “Established tire collection program” means “a comprehensive collection system or contractual arrangement [emphasis added] that ensures scrap tires are not discarded and are handled as a valuable commodity through arrival at the combustion facility...” Comment: The time frame for which the EPA must grant or deny the request should be included as well as defining the length of time of 30 days that these notices will be open to public comment. What is the legal implication of an “informal public hearing?” How does this diff er from a public information meeting? If it is “informal,” what is the purpose? WhatPage 243 of 527

administrative procedures apply to comments made during the “informal public hearing?” Response: The agency is not imposing a deadline on its decision to grant or deny a p etition, or a specific time period for public comment, due to the potentially wide range of issues involved in considering a categorical non

- waste petition and because of the many factors beyond its control. Informal public hearings, similar to formal publ ic hearings, provide an opportunity for the public to provide comments and oral testimony on proposed agency actions . All testimony received becomes part of the public record. Public meetings, on the other hand, are less formal; anyone can attend, there a re no formal time limits on statement, and the agency and/or the facility usually answer questions. The purpose of the meeting is to share information and discuss issues, not to make decisions.
Comment : The final rule should make clear that the denial of a petition would not bar the filer of the denied petition from filing a subsequent petition for the same location and same materials. Response : Where the information submitted to make a categorical non

- waste determination has fundamentally changed, the EPA agrees that a petition to categorically list a NHSM can be resubmitted for review. 5. Materials for Which Additional Information was RequestedPage 244 of 527

a. Pulp and Paper Sludge In the March 2011 NHSM final rule, the EPA concluded that pulp and paper sludges meet the legitimacy criteria and, thus, can be burned as a non

- waste fuel provided such combustion units are within the control of the generator in accordance with section 241.3(b)(1). 86 The December 2011 proposed rule discussed the information we currently have on pulp and paper sludges, and the additional information that the agency would need in order to categorically list these materials in 40 CFR 241.4(a) as a

non - waste fuel. 87 If suc h information were provided to the EPA, the agency would then consider the legitimacy criteria and other factors relevant to a determination that these sludges are not solid wastes when combusted. This categorical listing would put pulp and paper sludges in the same general grouping as resinated wood residuals. For resinated wood residuals, the EPA considered that use of that material as a fuel has been integrally tied to the industrial production process and is consistent with that of a fuel product. The proposal discussed similar information that was

86 Pulp and paper sludges almost entirely remain on

- site and within the control of the generator when burned as fuels. To the extent that pulp and paper sludges do not remain within the control of the generator and are used as fuels, the petition process est ablished in 40 CFR 241.3(c) could apply to these materials, as appropriate. 87 Additional information needed to categorically list pulp and paper sludges is discussed at 76 FR 80485.Page 245 of 527

needed by the agency to support adding pulp and paper sludges to 40 CFR 241.4(a) as a categorical non

- waste. Based on the comments received and information submitted, the EPA is listing as a categorical non

- waste fuel under section 241.4 those dewatered pulp and paper sludges that are not discarded and are generated and burned on

- site by pulp and paper mills that burn a significant portion of those residuals. Such residual must be dewatered and managed in a m anner to preserve the meaningful heating value of those materials. This determination for pulp and paper sludge as a categorical non

- waste represents the agency’s finding that, after balancing the regulatory 88 legitimacy criteria with other relevant factors , the burning of this material as described in the categorical listing is a commodity fuel for legitimate energy recovery and not discard. That is, the agency has concluded that, for pulp and paper mills that burn a significant portion, pulp and paper slud ges are integral to the mills’ operations and provide a critical source of energy. Such mills are not burning these dewatered pulp and paper sludges to discard them but are burning them as a legitimate commodity

88 As the EPA has previously stated (76 FR 15460), the Agency has establis hed regulatory legitimacy criteria which may be used by companies on a case

- by

case basis to show that they are not discarding material when used in a combustor. However, for the categorical determination, the Agency has determined that it is appropriate f or the Agency, itself, to make the discard determination for material that does not meet the more strict regulatory criteria. Thus, the EPA has developed the categorical determination.Page 246 of 527

fuel. These facilities take the steps necess ary to dewater the pulp and paper sludges and to manage the dewatered sludge to maintain its meaningful heating value and not to dispose of the sludge. In addition, the agency finds for facilities burning a significant portion of the dewatered sludge that: (1) The sludges are managed in a manner that preserves meaningful heating value and, therefore, meets the managed as a valuable commodity (241.3(d)(1)(i)). (2) Dewatered sludge (i.e., dewatered through appropriate water removal practices, including dewate ring presses, rotary driers, etc.) meets the meaningful heating value and used in combustion units that recovery energy criterion (241.3(d)(1)(ii)). (3) The sludge meets the comparable contaminant criterion (241.3(d)(1)(iii)). The fact that these sludges meet the contaminant legitimacy criterion, in the EPA’s view, show that these sludges when
burned on

- site are not being discarded. While the agency is not defining a specific percentage of dewatered pulp and paper sludges that would need to be burned to qu alify for the categorical listing in section 241.4, the agency would consider that the 42 mills that responded to an AFPA survey 89 and that use

89 See April 2, 2012, letter from Timothy G. Hunt to James Berlow. A co py of this letter has been placed in the docket for today’s rulemaking.Page 247 of 527

dewatered pulp and paper sludge as fuels at a significant rate (between 70

- 100 percent of these materials that ar e generated and burned) meet the listing description. We also find that other mills that burn a significant portion of their dewatered pulp and paper sludges on

- site as fuel would qualify for the listing description. 90 For the pulp and paper mills that burn a relatively small percentage of their dewatered pulp and paper sludges on

- site as a fuel (e.g., the five mills that responded to the AFPA survey that burn less than 20 percent), the agency has determined that those sludges are not viewed the same by the mill operator in that they do not need to rely on them for their energy value and are not included in the non

- waste categorical listing in section 241.4. However, there is likely little difference as to how pulp and paper sludge may be defined under NHSM r ules, whether a categorical or a facility

- specific non

- waste determination. That is, such dewatered pulp and paper sludges may still be considered non

- waste fuels when burned as a fuel for energy recovery at mills that burn a relatively small percentage of

90 While the Agency is not including a specific requirement for pulp and paper mills to document the amount of dewatered wastewater treatment residuals they burn on

- site as a fuel, we w ould recommend that such pulp and paper mills include such documentation in case there are any questions as to whether the pulp and paper mills dewatered wastewater treatment residuals qualifies for the categorical listing in 241.4. As an alternative, the pulp and paper mill can request the Agency to confirm (via letter) that the facility generates and burns on

- site a significant portion of pulp and paper sludges such that the facilities pulp and paper sludges are included within the categorical listing.Page 248 of 527

these materials, although the rules require those facilities to document on a facility

- specific basis that such sludges are non

waste fuels. As discussed in the final NHSM rule (76 FR 15488), dewatered pulp and paper sludges that are burned within the

con trol of the generator and meet the legitimacy criteria, likely are non

- waste fuels and thus can be burned in units subject to CAA section 112 requirements. The agency has restricted the categorical listing to those dewatered pulp and paper sludges that ar e burned on

- site because the agency has minimal information on how these NHSMs are managed when shipped offsite. 91 Outlined below are commenters’ responses to the agency information requests regarding pulp and paper sludges and a categorical non

- waste dete rmination.
Comment : The EPA requested information on how pulp and paper mill sludge is used as a legitimate fuel and not discarded at pulp and paper mills and how the material is integrated into the industrial production process. In responding to the age ncy’s request, commenters first provided a summary of energy needs by the pulp and paper industry. The commenters indicated that the industry is somewhat unique in its energy profile and in how individual mills select

91 We note that in the situation where pulp and paper sludges are transferred beyond the control of the generator, a facility can petition the Agency to receive a non

- waste determination, as appropriate.Page 249 of 527

appropriate fuels to support their ene rgy needs. Most pulp and paper mill boilers are specifically designed to handle a variety of fuels; few boilers are designed to burn just traditional fuel. Even mills with boilers specifically permitted as pulp and paper sludge boilers also burn other fuel s. Over the years, the industry has recognized the benefits of burning secondary materials, particularly those generated on

- site. These secondary materials are derived from and have characteristics similar to traditional fuel, particularly the biomass used to produce pulp and paper products. Mills do not usually burn just one type of fuel at any one time. Some mills rely heavily on coal, others on natural gas or biomass. According to the commenter, the choice of fuel depends on availability, cost and need. Hogged fuel or coal may be the underlying fuel but it is supplemented by other traditional and

non - traditional fuels. This is done in order to meet the energy needs of the mill but also to address best management practices for the boiler and meet air quali ty requirements. If the hogged fuel is wet, coal or resinated wood may be added to boost heat value. If the boiler is burning too hot, the addition of pulp and paper sludge enables the mill to regulate temperature. Pulp and paper sludge also may be burned because it has the best fuel value for the price. All of these decisions are based on the boiler conditions, fuel availability, energy needs, air qualityPage 250 of 527

requirements, as well as costs, and all are considered when the energy manager determines the right mi x of fuel in any given day. As a result, the quantities of different types of fuels burned over the course of a year differ and the mill may not burn 100 percent of the available fuel generated during that year. Not all pulp and paper sludges are burned at a given mill over the course of a year nor are all recycled process residuals (old corrugated cardboard rejects) or all hogged fuel. The commenter emphasized that if only a percentage of a secondary material generated by the industry is used as a fuel, th at it does not negate its value as a fuel. Rather, it reflects the realities of running a boiler for which the economic and operating conditions are interconnected and dynamic. For example in one mill, the commenter indicated that combination boilers are d esigned to burn a wide variety of fuels efficiently and cleanly. Two mills’ boilers currently burn tire

derived fuel, 92 while one burns waste paper generated at the mill. They all are capable of burning one or more fossil fuels: oil (including used oil), co al and gas. The four combination boilers burn large amounts of biomass, either generated on

- site or purchased commercially. A portion of three of the mills’

92 Tire

- derived fuel used in the paper industry must be dewired since the wires often clog the feed system. Thus, the industry does not utilize whole tires.Page 251 of 527

biomass consists of sludge generated on

- site from their wastewater treatment processes.
One state c ommenter also indicated that most mills operate boilers that are specifically designed to handle a variety of fuels

-- few boilers are designed to burn just traditional fuel and mills do not usually burn just one type of fuel at any one time. Bark and biom ass fuel may be the primary fuel but it is supplemented by other traditional or alternative fuels. Secondary materials have been an important alternative fuel used safely by the mills in the commenter’s state for many years. Most of that state’s mills' ha ve multi

- fuel boilers. Their fuel handling equipment, mill wastewater treatment systems and other ancillary equipment were designed to combust alternative fuels, including pulp and paper sludge. Use of these fuels reduces reliance on purchased biomass and/ or fossil fuels and provides a vehicle for beneficial reuse of the materials. In light of the greater stringency of the CISWI regulations, the state indicated that the mills are likely to landfill these materials instead of recovering their fuel value if t hese materials are considered solid waste under the CISWI standards. Another industry commenter stated that four of their five U.S. pulp mills produce wastewater treatment residuals that are burned in biomass

- fired combination fuel boilers. At one mill, th e residual solids are harvested and sold under a purchasePage 252 of 527

agreement to an Electric Utility Generating plant burning various sources of biomass because that mill does not have a biomass boiler designed to burn the residuals. The residuals are primary clarif ier solids (mostly wood fibers too short for product use) which are harvested by dewatering through a screw press. The residuals are stockpiled in a specific managed area before being trucked to the power company. At that site, the materials are processed and conveyed with other forms of biomass for fuel in their biomass boiler. Use of the wastewater treatment residuals from the mill as a fuel at the purchasing site is permitted in their air permit. One commenter indicates that the energy manager at a mill will determine the approximate amount of different types of fuels needed to obtain the most energy under the best operating conditions. As pulp and paper sludge is generated, it is directed toward the hogged fuel pile or towards other non

- fuel uses. This decision is based on whether the mill’s boiler is designed and permitted to burn pulp and paper sludge and the amount is determined by the energy demands on that particular day. Another commenter believes that the fact that not all pulp and paper sludge i s combusted at pulp and paper mills is evidence that the wood products industry only combusts pulp and paper sludge for legitimate energy recovery and not forPage 253 of 527

disposal. According to the commenter, when the pulp and paper sludge is not needed as a fuel, it is used for non

- fuel purposes or is discarded. When it is combusted, it is combusted for its energy value as a legitimate fuel. One mill described by a commenter has elected to divert its

own - make bark to beneficial use as mulch, rather than burning it, be cause it is of poorer quality than commercially available biomass. That same mill has recently invested in a new belt press which provides high quality sludge as fuel for its combination boiler. Since the press was installed in 2011, the percentage of mill sludge burned has increased to 80 percent from under 50 percent. Currently, the mill is burning more of the sludge from its process than the bark it also generates. At another plant, the commenter indicates that sludge is a by

- product of the AST process. Their mills employ primary clarifiers to separate out solids from wastewater, of which 50 percent is wood fiber, the primary component. 93 These solids are staged in holding or blend tanks prior to drying. In addition to primary clarifiers and aeration basin s, AST systems employ secondary clarifiers (large, open, circular concrete tanks) in which biological solids exiting the aeration basin(s) are separated by gravity from wastewater. The process is carefully

93 Washington State Department of Ecology Industrial Footprint Project Waste Stream Reduction and Re
‐ Use in the Pulp and Paper Sector, June 2008.Page 254 of 5 27

regulated to accomplish two objectives: making the water as clean and free of solids as possible while retaining activated sludge (active microbes) to re

- inject into the biological treatment stage of the process. As part of this continuous loop, some activated sludge must be removed from the system to mai ntain the optimal population of active microbes for effective
treatment. After excess secondary sludge is removed from the treatment loop at three of the mills, it is mixed with primary sludge in blend tanks prior to being dried on belt presses to a suitab le moisture level for burning or other uses. Sludge is introduced into the mills’ solid fuel feed systems by means of conveyers where it becomes thoroughly mixed with other fuels in the conveyer systems before being introduced into the mills’ combination b oilers. At one mill, primary sludge is dried separately by means of screw presses while secondary sludge is dried using a belt press. The two fuels are fed separately by conveyers onto the mill’s main solid fuel conveyer which transports the bark/sludge mi xture to a surge bin. The fuel is passed through a “waste heat dryer,” where it is briefly exposed to boiler flue gas before being fed into the combination boiler. The process at all four mills is continuous. Operators monitor and manage the sludge on a 24 hour basis. Sludge drying takes place entirely within buildings where the tanks, pipes, mixers,Page 255 of 527

pumps, polymer feed systems, conveyers, presses, diversion gates and valves, monitoring devices and other equipment necessary to produce suitable sludge are ho used. Sludge burned in the boilers is transported to the boilers on feed systems designed to ensure sludge, biomass and other solid fuels are homogeneous, thoroughly mixed and not exposed to the elements while being conveyed to the boilers. After its

remov al from wastewater treatment, no sludge touches the ground until it is burned, beneficially used (e.g., recycled feedstock to make newsprint) or landfilled. The commenters indicate that the moisture content of biomass is highly variable. Operators control fuel use based on the mill’s need for steam and electricity, fuel costs, fuel quality and fuel availability. All factors can change at a moment’s notice since the production process is constantly changing. Pulp and paper production swings or curtailments a re common. Energy demand, fuel cost or fuel quality may make it necessary or desirable to reduce biomass and sludge combustion, even to switch entirely to fossil fuels. Environmental emissions occasionally can be a factor in fuel use, particularly during b oiler startup or shutdown, or when the mill is experiencing rapid fluctuations in steam demand. Response : Based on the information submitted, and as discussed further in our responses below, the EPA is listing asPage 256 of 527

a categorical non

- waste fuel under section 241.4 dewatered pulp and paper sludges that are not discarded and are generated and burned on

- site by pulp and paper mills that burn a significant portion of such materials where such dewatered residuals are managed in a manner that preserves the meaningf ul heating value of the materials. This determination for pulp and paper sludge as a categorical non

- waste fuel represents the agency’s finding, after balancing the legitimacy criteria with other relevant factors, that those mills that burn a significant portion of these pulp and paper slud ges are burning them as a commodity fuel for energy recovery and not discard. The discussion above indicates that these mills have been designed to utilize pulp and paper sludges and use of that material as a fuel is an integral part of facility operations . Decisions regarding use and the right mix of fuel in any given day are based on the boiler conditions, fuel availability, energy needs, air quality requirements and cost.
Comment : The EPA requested information on the amount of pulp and paper sludge burn ed as fuel. In 2010, members of AF&PA burned 772,034 dry tons of pulp and paper sludge, which represents approximately 25 percent of the pulp and paper sludge generated by members of AFPA duringPage 257 of 527

the year. 94 However, approximately 90 percent of the AF&PA me mber facilities that responded to their survey (42 out of 47) that use dewatered pulp and paper sludge as fuels do so at a significant rate (between 70

- 100 percent of these materials that are generated are burned). In fact, one third of the AF&PA facilitie s that responded to their survey (16) that burn pulp and paper sludges, burn 100 percent of the materials generated. 95 Response : As the commenter indicates, while 25 percent of pulp and paper sludges that are generated are used as fuels on an industry

- wid e basis, the vast majority of facilities that responded to the survey that use dewatered pulp and paper sludges as fuels do so at a significant rate. In light of the information on use of pulp and paper sludges, the agency finds that for those pulp and pap er mills that burn a significant portion , that their use as a legitimate fuel is integral to the operation of the pulp and paper mill. The fact that these sludges meet the contaminant legitimacy criterion also, in the EPA’s view, shows that these sludges w hen burned on

- site are not being discarded. As discussed above, while the agency is not defining a specific percentage of dewatered pulp and paper sludges that

94 Docke t EPA

- HQ

- OAR

- 2003

- 0119

- 2619. 95 See April 4, 2012, letter from Timothy G. Hunt to James Berlow. A copy of this letter has been placed in the docket for today’s rulemaking.Page 258 of 527

would need to be burned to qualify for the categorical listing in section 241.4, the agency woul d consider the 42 mills that responded to the AF&PA survey as meeting the listing description. Where a facility has burned or burns in the future a significant portion of the dewatered pulp and paper sludges that are generated, the facility is clearly depe ndent upon the use of these materials as fuels in much the same way that wood manufacturing facilities are dependent upon the stream of resinated wood residuals to meet their energy demands. Specifically, we note that the percentage of overall use of pulp and paper sludges as a fuel at facilities burning a significant portion of the material (70 percent in the AF&PA comment above) is similar to the use of resinated wood within the wood products industry

-- approximately 73 percent of resinated wood generate d is either used as a fuel or is recycled back into the wood manufacturing process. 96 As noted above, mills that burn a significant portion of their dewatered pulp and paper sludges

on - site as fuel in the future would also qualify for the listing descriptio n. 97

96 See Materials Characterization Paper In Support of the Final Rulemaking: Identifi cation of Nonhazardous Secondary Materials That Are Solid Waste

– Resinated Wood Products. Docket EPA

- HQ

- RCRA

- 2008

- 0329

- 1820. 97 While the Agency is not including a specific requirement for pulp and paper mills to document the amount of dewatered wastewater treatment residuals they burn on

- site as a fuel, we would recommend that such pulp and paper mills include such documentation in case there are any questions as to whether the pulp and paper mills’ dewatered wastewater treatment residuals qualifies for th e categorical listing in 241.4.Page 259 of 527

On the other hand, when a pulp and paper mill burns a relatively small percentage of their dewatered pulp and paper sludges on

- site as a fuel (e.g., the five mills that responded to the AF&PA survey that burn less than 20 percent), the agency has det ermined that such sludges are not viewed the same by the mill operator in that they do not rely on the sludges for their energy value. As noted by one commenter, some mills may not produce pulp and paper sludge with sufficient fiber, such that the sludge i s a viable fuel. Therefore, the agency finds that such pulp and paper sludge should not be included in the categorical listing in section 241.4. 98 Those companies would need to make case

- by

- case determinations regarding legitimacy to support use as a fuel.
Comment : The EPA requested more data on contaminant levels

– particularly chlorine and metals. The NCASI undertook a thorough evaluation of data related to contaminant levels in pulp and paper sludge. 99 NCASI looked at the most robust information about pu lp and paper sludge which is found in the EPA’s Boiler MACT database. That database has pulp and paper sludge data comprised of nearly 5,280 records of

98 The Agency acknowledges that some portion of these pulp and paper sludges are land applied. While the Agency considers such uses as beneficial, such recycling is not integral to pulp and paper operations, and therefore, th e Agency would not consider this form of recycling in determining whether a facility is recycling a significant portion of their pulp and paper sludges. 99 Docket EPA

- HQ

- OAR

- 2003

- 0119

- 2619.Page 260 of 527

individual data points corresponding to 46 AF&PA member pulp mills. Table 8 of this preamble includes da ta from the EPA traditional fuels table as well as the EPA Boiler MACT database for pulp and paper sludge.Page 261 of 527

Table 8. Comparison of Traditional Fuel Contaminant Concentrations With Pulp Mill Sludge Data From the EPA’s Boiler MACT Database

Lit. Sour ce Rang e 1 Compou

nd Un it s Data from EPA OAQPS Databases Data from Boiler MACT Database, v. 7 2 Industrial Sludge NAICS 322 Coal Biomass Fuel Oils

Mi n Ma x Av g. Mi n Max A

v g

. Mi n Ma x Av g. N o

. N D s Mi n Ma x 90 % UP L 3 K

M 4 Mea n

ND

- 26 Antimo

ny (Sb) pp

m ND 6.

9 1. 7 ND 6 0

. 9 ND 3.

8 3. 5 1 1 6 3 7 ND 3.

14 2. 0 0.4 5
ND

- 80 Arseni c (As) pp

m ND 17

4 8. 2 ND 298 6

. 3 ND 13 1.

3 3 7 6 9 4 ND 10

5. 0 70 .6 7.9 4 0. 1

- 15 Beryll

ium (Be) pp

m ND 20

6 1. 9 ND 10 0

. 3 ND 19 2.

3 3 5 8 1 0 2 ND 2.

6 1. 97 0.3 5
ND

- 3 Cadmiu m (Cd) pp

m ND 19 0.

6 ND 17 0

. 6 ND 1.

4 0. 4 3 8 5 5 3 ND 19

.0 8. 2 1.5 5
ND

- 130 Chromi

um (Cr) pp

m ND 16

8 13 .4 ND 340 5

. 9 ND 37 3.

7 3 8 8 5 ND 17

0. 0 77 .3 17. 14
ND

- 30 Cobalt (Co) pp

m ND 25

.2 6. 9 ND 213 6

. 5 ND 8.

5 1. 1 1 2 7 2 2 ND 14

.4 16 .7 3.7 8
ND

- 340 Lead

(Pb) pp

m ND 14

8 8. 7 ND 229 4

. 5 ND 52 4.

3 3 4 7 1 9 ND 20

1. 0 64 .2 11. 53
5

- 840 Mangan

ese (Mn) pp

m ND 51

2 26 .2 ND 15,

800 3 0 2 ND 32

00 11 8 3 6 9 3 ND 3,

31 0 2, 65 0 559 .8

ND

- 1 Mercur y (Hg) pp

m ND 3.

1 0. 09 ND 1.1 0

. 0 3 ND 0.

2 0. 02 3 9 7 4 0 ND 1.

40 0. 72 0.1 14

ND

- 540 Nickel

(Ni) pp

m ND 73

0 21 .5 ND 175 2

. 8 ND 27

0 24 .1 3 8 1 9 ND 18

0. 0 67 .7 14. 990
ND

- 10 Seleni

um (Se) pp

m ND 74

.3 3. 4 ND 9 1

. 1 ND 4 0.

8 3 1 6 1 9 7 ND 6.

0 4. 5 0.9 0Page 262 of 527

TSM 2,

06 7 92 .6 17,

098 3 3 0

. 9 3,

60 9 15 9. 5 2, 96 4 618 .5

T SM w/o Mn 1, 55 5 66 .4 1,2

98 2 8

. 9 40

9 41 .5 31 4 58. 7

Chlorin e (Cl) pp

m ND 9,

08 0 99 2 ND 5,4

00 25 9 ND 1,

26 0 13 3 3 7 4 11 ND 48

00 2, 06 4 378
Total Ha logen s pp m 9,

25 8 1, 05 6 5,5

28 29 1 1,

27 4 14 2 2, 39 4 445

1 Nitroge n (N) g/

kg 13 .6 54 .0 15 .1 2. 2 4.6 3.

46 2. 0 3. 0 2. 25 2 6 0 0.

8 17 .7 26 .4 7.7

2 Sulfur (S) g/

kg 0. 74 61 .3 13 .6 ND 6.1 0.

70 ND 57

.0 8. 28 1 1 8 0 ND 6.

3 8. 8 3.0 The grey shaded cells indicate an outlier test was performed and the outlier(s) identified was confirmed based on further graphical observation (see further explanation below).

1 Total range determined from literature sources

- coal

- Clarke and Sloss (1992); biomass

- Energy Research Centre for the Netherlands, Phyllis Biomass database. http://www.ecn.nl/phyllis; oil

- U.S. EPA (1999), Appendix B; 2 Boiler MACT Database sludge a nalysis data; 3 Chebyshev UPL for non

- normal data sets; 4 Kaplan

- Meier; Selenium (Se)

- with the Rosner's test (n > 25), for 1% significance level, one potential outlier was 560 ppm, which was rejected after graphical observation of the data. The next hi ghest detect was 6 ppm. Footnotes on Other Literature Data

1 Literature contains a value of 39.5 g/kg for nitrogen in biomass and 8.95 g/kg for nitrogen in fuel oils;

2 Literature contains a value of 8.7 g/kg for sulfur in biomass.Page 263 of 527

The commenter indi cates, as shown in the table, that contaminant levels in pulp and paper sludge are well within the ranges of metals found in traditional fuels. For all 11 HAP metals, except Mn, the 90 percent UPL value for sludges is less than the corresponding maximum fo r coal. For Mn, which is principally derived from biomass, the 90 percent UPL value for sludges is well below the maximum for biomass. This is also reflected in the TSM comparisons with and without Mn between coal, biomass and pulp and paper mill sludges. Chlorine and total halogens (Cl + Fl) in sludge compare favorably with both biomass and coal. Nitrogen and sulfur in sludge also compare favorably with coal, although the commenter also points out that the nitrogen and sulfur contents are generally not ind icative of HAP formation potential for any fuel, and in the case of pulp and paper mill sludges in particular, the sulfur content of these sludges is typically in the inorganic sulfate form that predominantly ends up in the combustion ashes. NCASI found a paucity of data on organics in pulp and paper sludge. Except for Ds/Fs, which had been evaluated extensively in the 1990s, organics are not expected to be found in pulp and paper sludges. Due to the changes in bleaching techniques which demonstrated signif icant reductions in the existence of Ds/Fs in sludge, testing for even dioxins has not been undertakenPage 264 of 527

recently. NCASI notes that of the data that do exist, organics are rarely found and those that are identified are frequently below the detection limit. Overall, the commenter states that contaminant levels in pulp and paper wastewater treatment residuals compare well to those found in traditional fuels. Response: Based on the information provided, the agency finds that pulp and paper sludges, meet the comparable contaminant criterion (241.3(d)(1)(iii)). The data confirms the conclusions in the NHSM final rule regarding chlorine and metals are comparable to the levels found in coal, which is a traditional fuel that may be burned in these facilities.
Comm ent : The EPA requested information on what steps the industry has taken to ensure the quality of pulp and paper mill sludge when used as a fuel at pulp and paper mills is consistent with that of a fuel product. Commenters state that pulp and paper mills t hat generate pulp and paper sludge do so as part of their compliance with the CWA requirements, as well as part of an effort to return as much wood fiber to use as possible, either as an input to the manufacturing process or as a fuel. The strategies that each mill uses to meet those requirements differ depending upon the type of product, the location of the mill and the specific standards established by the EPA and the respective states.Page 265 of 527

However, mills clean wastewaters prior to discharge, thus creating pr imary and a variety of secondary pulp and paper sludges, all of which capture wood fibers. Furthermore, the question of whether the quality of the pulp and paper sludge is appropriate for a particular mill is based on the boiler design. As such, there are some boilers well suited to burn it; others cannot burn the material. At one commenter’s mill, for example, the company has invested over $7 million upgrading sludge drying and management equipment. The object of these large investments was not to

remove a ll of the moisture in the sludge. Rather, it was to make sludge quality consistent with that of the wet biomass burned in its combination boilers. Either too much or too little moisture can have a deleterious effect on the boilers’ combustion. One mill rec ently installed a belt press to improve the reliability of its sludge management system and increase the average solids content of its sludge. Since then, the sludge has occasionally caused combustion problems in the boiler because it was too dry, necessit ating additional quality control to optimize the sludge’s moisture content. Another commenter stated they invested over $3 million to prevent unwanted materials from reaching the treatment process and being discharged in mill effluent or being incorporated into the pulp and paper sludge. Their mills make coated paperPage 266 of 527

products, the coatings consisting largely of clay and other minerals. Improved equipment and operating procedures have significantly lowered sewer losses of these materials, improving the quali ty of wastewater and reducing the ash content of these pulp and paper sludges. To further pollution prevention, their mills set stringent specifications for raw materials, such as sulfuric acid and caustic soda, which minimizes the introduction of trace am ounts of heavy metals into the process. From the standpoint of process control, the commenter stated that sludge management processes are continuous, enclosed and carefully controlled. In contrast, bark and wood chips may be exposed to the elements for ext ended periods before being burned. Depending on the season, hardwood bark can get “stringy” and become very difficult to process as fuel. Frozen bark or chips can jam or disable equipment. Purchased fuel can have excessive rocks or grit. It is difficult to control the quality of biomass burned in the commenter’s boilers. Sludge frequently exhibits less variability in quality than other types of biomass. Response : Based on the information provided , the agency finds that, for facilities burning a significant portion of the dewatered sludge, use of the material is integral to the facility’s operations, particularly in the value these materials provide as a critical source of energy. At such facilities,Page 267 of 527

sludge management processes are carefully controlled and t he industry has taken the necessary steps to ensure the quality of pulp and paper mill sludge when used as a fuel at pulp and paper mills. On the other hand, for those pulp and paper mills that do not burn a significant portion of their dewatered wastewate r treatment sludges, the agency does not believe that the same steps have been taken to ensure the quality of the pulp and paper mill sludge that is used as a fuel and thus, is not an integral part of the pulp and paper mill operations.
Comment : The EPA r equested information on what are the standard practices used to ensure pulp and paper sludge has meaningful heating value. As noted in the October 2011 pulp and paper sludge paper the AF&PA submitted prior to the December 2011 proposal, the overwhelming ma jority of pulp and paper mills remove water from pulp and paper sludge prior to managing it in any way. Belt and screw presses are most commonly used in the industry. Some mills use steam heated filter presses. Some pulp and paper sludge is also further dr ied in steam heated rotary driers. As indicated previously, sludge drying takes place entirely within buildings where equipment necessary to produce suitable sludge is housed. Sludge burned in the boilers is transported to the boilers on feed systems desig ned to ensure sludge, biomass and other solid fuels are homogeneous, thoroughly mixed and not exposed to thePage 268 of 527

elements while being conveyed to the boilers. In all instances, the goal is to raise the solids content

– and thus, Btu value. Response : Based on t hese comments and other information in the record, the agency finds that facilities that burn a significant portion of these materials take the steps necessary to dewater the pulp and paper sludge and to manage such dewatered sludge to maintain its meaning ful heating value and burn the sludge for energy recovery.
Comment : The EPA requested information on how pulp and paper mill sludge is managed when shipped offsite. There are several mills within the industry that have agreements with other facilities, primarily electric utilities that purchase pulp and paper sludges for use as biomass

- based fuel. For the most part, these arrangements occur when there is a utility close to the pulp and paper mill because the cost of shipping such sludges long distances m ay be prohibitive. Pulp and paper sludges may be sent offsite when it is being used by other entities to produce another product, (including fuel pellets 100 ), used for other purposes (land application, use as landfill cover), or for final disposal. Pulp and paper sludges are shipped by containers, truck or rail.

100 When pulp and paper sludges are sufficiently processed, and such processed material meets the legitimacy criteria, the processed materials are non

- waste fuels whether burned within or outside the control of the generator.Page 269 of 527

Response: The agency recognizes that, as described above, some pulp and paper sludges are sent offsite for use as a fuel. However, the agency has restricted the categorical listing to those pulp and p aper sludges that are burned on

- site because the agency has minimal information on offsite use of these materials. In fact, the pulp and paper industry indicates that the great majority of these sludges, when burned as a fuel, are burned on

- site. Also, in the few instances that the pulp and paper industry discussed in their comments that these materials were shipped offsite, they seem to be sent to other industries. The fact that these sludges are sent to other industries would not necessarily disqualify th ose dewatered pulp and paper sludges from being considered for listing categorically. However, the agency does not have sufficient information to make any determination. 101
Comment : For reasons stated previously in comments on the June 2010 proposed rule, on e commenter argues that pulp and paper sludges are waste when burned regardless of whether it is burned by the company that generated it and regardless of whether it meets the EPA’s legitimacy criteria. Paper mill sludge is a waste because it is discarded within the meaning of
RCRA.

101 We note that in the situation where pulp and paper sludges are transferred beyond the control o f the generator, a facility may also petition the Agency to receive a non

- waste determination, as appropriate.Page 270 of 527

The EPA’s description of pulp and paper sludge shows that it remains a waste even under the agency’s own definition of discard. First, the EPA acknowledges that pulp and paper mills have no use for pulp and paper sludge; the fib ers it contains are “too short to be suitable for papermaking and it contains microorganisms that feed on organic material in the wastewater stream.” 102 Second, the fact that paper mill sludge comes from “the wastewater stream,” 103 in itself confirms that it is a
waste. Third, the EPA’s discussion of the contaminant levels in paper mill sludge shows substantial variation in chlorine levels. Where the EPA encounters such variability in the course of setting floors for CISWI units in the very same Federal Regist er notice, the agency uses a 99th percent UPL to assure that the level it chooses will not be exceeded. Yet, where the EPA encounters variability in the chlorine levels in pulp and paper sludge

– variability that could lead to significantly higher emission s of chlorinated pollutants, such as HCl and dioxins

– the agency simply dismisses it without further ado. The EPA’s disparate treatment of the variability of emissions for floor setting and of the chlorine levels in pulp and paper

102 See 76 FR 80485. 103 Id.Page 271 of 527

sludge for the purposes of considering a categorical declaration that such sludge is not a waste is unexplained and arbitrary. If the agency believes that such variability exists, it should be concerned about the possibility that some sludges may have far higher chlorine levels t han it assumes

– as, indeed, the record shows some sludge does

– and should take steps to ensure that this is not the case before it even considers an exemption. Indeed, the agency’s failure to examine this possibility renders the existing rule, which allo ws generators to burn their own sludge, arbitrary and capricious. Fourth, the EPA admits that sludge contains extremely low heating values, so low in some instances as to flunk the agency’s legitimacy criteria. That sources typically dewater their sludges does not make these sludges any less a waste, even under the agency’s own definition of discard. The EPA does not say what the heating value of the sludges is after dewatering, nor does it make any difference what the “dry weight” heating value of sludges might be, as they are not at “dry weight” when burned. The reality is that paper mills find it cheaper to burn their sludges than to dispose of them safely and that because these sludges are largely “wastewater” and contain high levels of chlorine and othe r contaminants, burning them requires large quantities of other fuel and generates high levels of pollution.Page 272 of 527

Response: The agency disagrees with the commenter that all pulp and paper sludges are waste fuels when combusted. To the extent comments were submi tted in response to the March 2011 final rule, the agency need not respond. Below, the EPA responds to the new points raised in the comments. With respect to the particular arguments on the categorical listing, the agency disagrees that the sludge remains a waste even under the agency’s own definition of discard. The comment is incorrect when it states that the EPA has acknowledged pulp and paper mills have no use for pulp and paper sludge because the fibers it contains are “too short to be suitable for
pa permaking and it contains microorganisms that feed on organic material in the wastewater stream.” 104 In the proposed rule, we stated that fibers that end up being too short can be detrimental to paper quality. Although this would not be suitable for papermak ing, these sludges are a valuable resource
as energy - containing secondary materials as discussed in detail in the comments above. As much as 50 percent of the sludge is composed of wood fibers which are similar in content to other types of biomass fuel com busted. Further, the agency disagrees that pulp and paper mill sludges are wastes because they are contained in a “wastewater” stream. The D.C. Circuit in, API v. EPA , 216 F.3d at 58,

104 See 76 FR 80485.Page 273 of 527

rejected the proposition that the mere presence in a wastewater
stream makes a material a waste. In API, the D.C. Circuit criticized the EPA for not saying why it concluded that the disposal motivation, compliance with water quality standards, predominated over the recycling motivation, recovery of oil from primary wastewater treatment. Plainly, the mere presence of oily material in wastewater did not make the oil a waste. In this case, the EPA has found in its categorical listing that the motivation for burning the pulp and paper sludge is to use its inherent value as a fuel and not for disposal. Comments have provided the agency with information that facilities that burn a significant portion of these sludges consider them to be an integral part of their production process, particularly in the value these materials provide as a critical source of energy. We disagree that the disposal motivation predominates over the true value of these sludges as an important fuel, integral to the production processes. The EPA also disagrees that the treatment of the variability of emissions for floor setting and of the chlorine levels in pulp and paper sludge for the purposes of considering a categorical declaration that such sludge is not a waste, is unexplained and arbitrary. The agency notes that, rather than dismissing the variability of chlorine levels in pulp and paper sludges, it has considered all available data

— including data onPage 274 of 527

variability

— and reached the conclusion that contaminant levels in pulp and paper sludges are comparable to or lower than those in the appropriate traditional fuel(s). The EPA acknowledges that, based on data submitted to the agency since promulgation of the March 2011 final rule and presented in the December 2011 proposed rule, chlorine levels in paper mill sludge show substantial variation. This is an importan t factor to consider when making a categorical non

- waste determination and the agency has considered mean concentrations, the range of concentrations, and variability when analyzing pulp and paper sludges. As stated in the proposed rule and information in the rulemaking record, data for pulp and paper sludges show mean chlorine concentrations of 361 ppm, well below the mean of 992 ppm observed in coal. Data for pulp and paper sludges also show maximum chlorine concentrations of 4,800 ppm, well below the

ma ximum of 9,080 ppm observed in coal and below the maximum of 5,400 ppm observed in untreated wood and biomass materials. The variability of chlorine levels in pulp and paper sludge is demonstrated by a standard deviation of the mean of 661 ppm. 105

106 This var iation in chlorine levels, although high, does not discount the fact that both average and maximum chlorine

105 See 76 FR 80485. 106 Contaminant Concentrations in Traditional Fuels: Tables for Comparison, Novembe r 29, 2011, can be found at http://www.epa.gov/epawaste/nonhaz/define/index.Page 275 of 527

concentrations in pulp and paper sludge are lower than those in coal which is defined as a traditional fuel. The comment also implied that the EPA should use the 99 percent UPL, as is used to set the CISWI floors, to ensure that these pulp and paper sludges do not contain excessive contaminant levels. The agency disagrees that any one statistical tool or comparison methodology will fit every situatio n given the variety of NHSMs, traditional fuels, contaminants and combustion units that exist. Nevertheless, the agency has calculated the 99 percent UPL for chlorine levels in pulp and paper sludge in response to the comment and come to the same conclusio n. The 99 percent UPL for the same dataset of 93 samples analyzed in the proposed rule would be 6,970 ppm, a value below chlorine concentrations observed in coal. 107 Finally, we disagree that pulp and paper sludge contains extremely low heating values that w ould fail the agency’s legitimacy criteria. In terms of meeting the legitimacy criteria for a meaningful heating value, the agency indicated in the NHSM final rule that pulp and paper sludges have a heating value of between 3,300

– 9,500 Btu/lb, on a dry bas is

-- no specific information having been submitted on the ‘‘as fired’’ heating value of these materials. The final rule concluded that pulp and

107 The 99 percent Chebyshev UPL for non

- normal datasets was calculated using EPA’s ProUCL 4.0 Software available at http://www.epa.gov/nerlesd1/tsc/software.htm.Page 276 of 527

paper sludges meet the legitimacy criterion for being managed as a valuable commodity as they are dewatered to increase their energy value, collected on a continual or frequent basis (as produced), and further processed and consolidated, including the removal of biosolids. Further, as discussed in detail above, where a facility is burning a significant portion of t he dewatered pulp and paper sludges that are generated as fuel rather than other purchased biomass or fossil fuels, pulp and paper sludges are integral to the facility’s operations and the facility is clearly dependent upon the heating value of these
mater ials. 108 Thus, we find, as discussed in the final rule, that pulp and paper sludges are not discarded and generally meet the meaningful heating value legitimacy criterion (46 FR 15488). b. Coal Refuse 109 In the 2011 NHSM final rule, the EPA included currently generated coal refuse within the definition of traditional fuel codified in 40 CFR 241.2. In discussing its determination that currently generated coal refuse is a traditional fuel, the agency said, “the fact that coal refuse has been used and

108 The final rule notes that meaningful heating value is derived from an NHSM with energy content lower than 5000Btu/lb if the ERU can cost

- effectively recover meaningful energy from the NHSM used as fuel (76 FR 15541). 109 Coal refuse refers to any by

- product of coal mining or coal cleaning operations, consisting primarily of non

- combustible rock with attached coal. Due to advances in technology over the past century, the processing of coal has evolved, such that materials that are now generated in the coal mining process, w hich would have been considered coal mining rejects in the past and discarded in waste piles, are now handled and processed as coal.Page 277 of 527

managed as a fuel for thirty years when coupled with the fact that coal refuse is unique from other non

- hazardous secondary materials in that it is a byproduct of fuel production processes and is itself a raw material that can be used as a fuel leads us to determine t hat coal refuse that is currently generated and used as a fuel should be considered a traditional ‘alternative fuel.’” 110
The 2011 NHSM final rule also determined that coal refuse that has been placed in legacy piles would not meet the definition of tradit ional fuels, as they clearly have been discarded in the first instance. 111 Since coal refuse recovered from legacy piles is subjected to the same operations that are used to process virgin coal, which serve to both increase energy values, as well as reduce c ontaminants, the EPA determined that such processes were sufficient to meet the definition of “processing,” as codified in 40 CFR 241.2, and such recovered coal refuse would not be considered a solid waste when used as a fuel in a combustion unit provided those materials satisfy the legitimacy criteria. 112
The 2011 NHSM final rule also stated our belief that coal refuse recovered from legacy piles contains contaminants at levels that are comparable to or lower than coal refuse that is

110 See 76 FR 15507. 111 Id. 112 See 76 FR 15509.Page 278 of 527

currently generated, as the recovered coal refuse is subject to the same processes as currently

- generated coal refuse in order to meet the same fuel specifications. Since promulgation of the 2011 NHSM final rule, the agency has further clarified that it believes that coal refuse recovered from legacy piles that is processed and managed in the same manner as currently generated coal refuse satisfies the legitimacy criteria. 113 Having determined that coal refuse recovered from legacy piles that is processed and managed in the same ma nner as currently generated coal refuse satisfies the legitimacy criteria, the 2011 proposed rule solicited comment on whether to categorically list post

- processed coal refuse from legacy piles

as a non - waste fuel in 40 CFR 241.4(a). However, the EPA made it clear that it was not reopening any other issues regarding coal refuse. Other comments regarding coal refuse are responded to in the record for the final rule. In this part of the preamble, we are only responding to the issue of whether coal refuse
proc essed from legacy piles should be considered a non

- waste fuel on a categorical basis. Accordingly, the EPA is not responding in this preamble or the Response to Comment document on issues regarding whether coal in legacy piles are traditional fuels.

113 See August 15, 2011, letter to Jeff A. McNelly, ARIPPA (cited in the proposed rule: 76 FR 80486).Page 279 of 527

Comme nt: One commenter states that not every material that is discarded is treated as solid waste under the rule. For example, the EPA includes numerous materials within its definition of “traditional fuels” and “clean cellulosic biomass” that are commonly unde rstood as used, discarded, and abandoned, listing, for example, corn stover, peanut shells and certain types of demolition materials. The commenter argues that each of these materials is either discarded or has filled its original purpose and may be collec ted by a different party for a different purpose (i.e., use as a fuel). The commenter continues that although the agency has ample authority to exempt certain articles from classification as solid wastes, it did not consistently apply the term “discarded” in the context of legacy coal refuse. For example, the EPA recognized that on

- specification used oil and clean C&D materials should be treated as traditional fuels when combusted for energy generation. Thus, the commenter urges the agency to revisit its ap plication of the “discard” principle and treat all coal refuse, regardless of when they were generated and regardless of processing to be fuels and not wastes. Response: The EPA disagrees with the comment, which seems to misunderstand the purpose of this rulemaking action. If the agency determines in this rulemaking that a material is a solid waste when combusted, the unit combusting that material would bePage 280 of 527

subject to emissions standards issued under CAA section 129 even if burned as a fuel. A material is n ot discarded simply because it is no longer used for its original purpose. It may be used as a fuel product by another party, providing the conditions the EPA has explained in the rule apply. In such a case, the reused material is not a waste. Further, the agency is not exempting any materials from the definition of solid waste. The EPA is only describing the kinds of materials that are wastes when burned in combustion units, even if they are burned for energy recovery. The EPA consistently applies the conc ept of “discard.” Materials listed as examples of clean cellulosic biomass cited by the commenter have not been discarded in the first instance, as is clearly the case for coal refuse abandoned in legacy piles. While some materials have filled their orig inal purpose, that fact, in and of itself, does not equate to discard. Clean cellulosic biomass is considered to be a type of “alternative fuel” within the definition of “traditional fuel.” Such alternative fuels are developed from virgin materials that

ca n now be used as fuel products. 114 This applies to the examples mentioned by the commenter, including corn stover, peanut shells and clean construction and demolition wood. Further, coal refuse mined today that would have previously been abandoned in piles

114 See definition of traditional fuels, as codified in 40 CFR 241.2. We note that the December 2011 proposal did not solicit comment on the definition of trad itional fuels.Page 281 of 527

a re also alternative fuels that are now grouped in the traditional fuel category because of new technology. This is separate from coal in legacy piles that have been traditionally
wastes. Further, there is a clear difference between the management of the li sted examples of clean cellulosic biomass and coal refuse abandoned in legacy piles. For example, the commenter characterizes corn stover as “typically left in the field to decay” and thus discarded. The EPA assumes this statement is based on the historic use of leaving corn stover in the field as a cover to reduce erosion and for nutrient content. 115 As noted by the agency previously, over the course of this rulemaking, an emerging market for corn stover and other primary and secondary agricultural residues is for use as a heat and power source for the production of corn and cellulosic ethanol.” 116 When the determination is made to use corn stover for its fuel value, the materials are managed differently than merely “left in the field to decay.” If there were l egacy piles of such materials, they too would have to be treated as wastes while in the legacy piles. We would also note that it is not unreasonable to expect

115 See Petrolia, Dr. Daniel R., “Economics of Crop Residues: Corn Stover.” June 2009. A copy of this document has been placed in the docket to today’s rulemaking. 116 See Materials Characterization Paper in Support of the Final Rulemaking: Id entification of Nonhazardous Secondary Materials That are Solid Waste, Biomass

—

Agricultural Residues and Food Scraps.” February 3, 2011. A copy of this document can be found in the docket for today’s rulemaking.Page 282 of 527

that agricultural materials, such as corn stover, may be left on the field until there are suffic ient amounts of those materials to be collected, baled and transported. This is clearly a different scenario from coal refuse left in place in piles with no purpose other than abandonment and clearly managed as a waste for decades. With respect to used oi l, the agency has already explained in the final March 2011 rule the difference between on

specification and off

- specification used oil as applied to the definition of solid waste. The on

- specification used oil is considered an alternative fuel that has no t been abandoned and, by regulation, may be burned with no more restrictions than refined product oil. Off

- specification used oil is specifically described in the EPA’s regulations as a material that may only be burned in certain combustors because it exce eds contaminant levels established under part 279, rendering it off

specification and, accordingly, evaluated under part 241 to determine its waste/non

- waste status. 117

. Comment: One commenter argues that off

- specification tires are analogous to legacy coal refuse to the extent they are set aside and not used immediately by the factory. Since the agency proposes to include off

- specification tires within the

117 Note that Section III.D.2.c of today’s pr eamble discusses circumstances under which off

- specification used oil may use coal data when making contaminant comparisons.Page 283 of 527

definition of “established tire collection program” and not consider these materials to be a solid was te when used a fuel, the agency should treat legacy coal refuse similarly. Response: We disagree with the commenter that coal refuse abandoned in legacy piles is analogous to the handling and management of off

- specification used tires. Coal refuse that has been placed in legacy piles decades ago has clearly been abandoned, thrown away and thus, discarded and historically managed as a waste. On the other hand, the agency has information that tire manufacturers that have produced off

specification tires (incl uding factory scrap) have contractual agreements in place to ensure these materials are collected, managed and transported to the combustor. In fact, it is the requirement that scrap tires (including off

- specification tires) be managed pursuant to establis hed tire collection programs that ensures these materials are managed as a valuable commodity in order to meet the categorical non

- waste determination codified in 40 CFR part 241.4(a). Further, as we have noted elsewhere in today’s preamble, to the extent that these off

- specification tires are discarded, such as in tire piles, they would be considered solid waste in that they have been discarded, and would not be included within the categorical listing of “scrap tires that are not discarded and are managed under the oversight of established tirePage 284 of 527

collection programs, including tires removed from vehicles and off

- specification tires.” Comment: One commenter states that the EPA, consistent with the intent of RCRA, should be encouraging the use of legacy coal refuse, not hampering them. The commenter argues that characterizing coal refuse in legacy piles as a solid waste could subject leg acy coal refuse piles to additional federal and state requirements and potentially result in the piles being classified as open dumps or solid waste management units. Further, combustors of legacy coal refuse and their suppliers would also be more likely t o be subject to citizen suits under RCRA 40 CFR 7002. This commenter argues that the determination that unprocessed legacy piles are different

— and should be regulated differently

— than coal refuse generated from current mining operations is illogical becaus e the characteristics of the materials are the same. Thus, although the EPA takes the position that subjecting legacy coal to the types of operations that are used to process virgin coal is sufficient to convert the legacy coal refuse from solid waste into a non - waste fuel, the initial designation as solid waste risks regulatory confusion regarding the status of the numerous piles of legacy coal refuse. Response: This comment is clearly beyond the scope of this rulemaking proceeding. In the first place, le gacy coal pilesPage 285 of 527

are, indeed, wastes. How they may be treated when they are in the piles is clearly beyond the scope of this rule. This rule deals with how the legacy coal is to be treated when it is taken from the piles and burned for fuel. Comment: While supporting the concept of a categorical listing for legacy coal refuse, a few commenters argued that the agency should not require that legacy coal refuse be “processed” in order to be considered a non

- waste fuel. One commenter noted that the EPA does not require traditional fuels or resinated wood to undergo processing to be treated as a fuel, even though many of those materials would be understood to be discarded. Another commenter noted that the term “post

- processing,” which was used in the proposal as a shorthand description of legacy coal refuse that has undergone processing, is too vague and should be eliminated so the use of extracted coal refuse undergoing further processing at the generating facility is not discouraged. If applied too literally, the commenter continued, any “post

- processing” provision being imposed on treating legacy coal piles as fuel would not benefit the CFB community and could hinder the usage of these piles as fuels. The commenter argues that the term “post

- processing” could be interpreted as requiring processing at the coal refuse excavation site which would not be determinative of any relevant characterization of the coal refuse or its intended use as fuel.Page 286 of 527

Response: In the 2011 NHSM final rule, the EPA discussed how a NHSM, on ce discarded, can be processed into a non

- waste fuel. 118 The proposed rule did not solicit comment on either the concept of processing a discarded NHSM into a non

- waste fuel or the definition of “processing” itself, as codified in section 241.2. Therefore, t he agency does not address the concept or definition of processing in this final rulemaking. Again, however, the comment suggests a need to clarify the nature of the rulemaking exercise that the EPA is currently engaged in. First, we disagree with the comm enter’s characterization that many of the traditional fuels and resinated wood should be understood to be discarded. Traditional fuels, by definition, are not discarded. 119 If clearly discarded (e.g., a barrel of fuel oil dumped), even a traditional fuel

wou ld have to be processed per the part 241 regulations in order to be a non

- waste fuel. However, it is precisely because of their fuel value that makes it unlikely that traditional fuels will be discarded. We also disagree that resinated wood is discarded pr ior to being or when used as a fuel in a combustion

118 See 76 FR 15474

- 15477. 119 See last sentence of “traditional fuels” definition, as codified in 241.2: “[Traditional] fuels are not secondary materials or solid wastes unless discarded ” (emphasis added).Page 287 of 527

unit. For a discussion of why we believe resinated wood is a

non - waste fuel, please see section III.E.3.b of this preamble. 120 As noted above, coal refuse abandoned in legacy piles has clearly been disc arded in the first instance because the coal preparation technology did not yet exist that could utilize these materials for their fuel value. Thus, legacy coal refuse would have to be processed into a non

- waste fuel. However, the agency has previously rec ognized the uniqueness of coal refuse in that it is a byproduct of fuel production processes and is itself a raw material that can be used as a fuel. 121 In the 2011 NHSM final rule, the agency determined that coal refuse that is recovered from legacy piles a nd used as fuel that is subjected to the types of operations that are used to process virgin coal or currently generated coal refuse would meet our definition of processing as codified in 40 CFR part 241.2. 122

120 See also discussion included in the 2011 NHSM final rule (76 FR 15499

- 15502)
. 121 See 76 FR 15507, which states, “Coal refuse is unique, however, from other non - hazardous secondary materials addressed in this rulemaking, as it is generated in the process of producing fuels (i.e., the mining of coal for use as fuel) and its subsequen t use and value as a secondary material is also as a fuel. Since the primary product of a coal mining operation is itself a fuel, we consider coal refuse to be more akin to a raw material that is subsequently processed and utilized to produce a fuel. In ot her words, coal refuse is different from other non

- hazardous secondary materials, such as used tires or resinated wood residuals, in that it is generated in the production of fuel and can be used itself as a fuel (and in fact has never been used for anythi ng else).” 122 See 76 FR 15509. In addition, subsequent to the 2011 NHSM final rule, the EPA has reiterated this determination. See August 15, 2011, letter to Jeff A. McNelly, ARIPPA (cited in the proposed rule: 76 FR 80486).Page 288 of 527

As the processing that is required is no dif ferent than what currently

- generated coal refuse is subject to, we do not believe the processing requirement would hinder the usage of coal refuse piles. The agency believes the only additional “processing” step is the actual extraction or recovery of the coal refuse from the legacy piles. To the extent that the term “post

- processing” could be misconstrued as requiring an additional processing step at the extraction site or otherwise as compared to currently generated coal refuse, this was not the agency’s intent. Rather, we have included the concept of “processing” in the categorical non

- waste determination for legacy coal refuse, as legacy coal refuse was clearly discarded and, prior to processing, is a solid waste. That said, we clarify again today that c oal refuse recovered/removed from legacy piles that is processed in the same manner as currently generated coal refuse would meet the definition of processing as codified in section 241.2. No additional processing is required given the uniqueness of coal r efuse. For commenters suggestions regarding the explicit wording of the categorical listing for legacy coal refuse, see additional response to comments below. Comment: In support of the agency’s soliciting comment on whether to add legacy coal refuse to th e list of categorical

non - waste fuels proposed in 40 CFR part 241.4, one commenter states that once removed from the physical mining location,Page 289 of 527

legacy coal refuse and currently

- generated coal refuse are indistinguishable. Thus, coal refuse from legacy piles will be managed in the same manner as coal refuse, will have similar heating value as coal refuse and be used as a fuel in a combustion unit that recovers energy and can be expected to have similar contaminant levels as coal refuse because it is ostensibl y the same material. Response: We agree that coal refuse recovered/removed from legacy piles and processed in the same manner as currently generated coal refuse would meet both the definition of processing and the legitimacy criteria. Thus, we have determ ined to list “coal refuse that has been recovered from legacy piles and processed in the same manner as currently

- generated coal refuse” to the list of categorical non

- waste fuels codified in part 241.4(a) of today’s rulemaking. The rationale for adding th is NHSM to the list of non

- waste fuels follows the reasoning finalized in part 241.4(b) in today’s rulemaking. We agree with the reasoning of the comment and have, in fact, arrived at the very same reasoning in support of the categorical listing.
Comment: One commenter argued that the EPA should treat legacy coal refuse as fuels, since they are chemically identical, if not superior fuels, to currently generated coal refuse that the agency considers to be a traditional fuel, per the definition codified in 40 CFR 241.2.Page 290 of 527

Response: Again, the EPA must explain a misunderstanding expressed by the commenter. The comment seems to consider that material is either a “fuel” or a “waste” and misses the point that the distinction in this rulemaking is between a “product ” and a “waste” fuel. Fuels may be wastes. The point is that the coal that has been abandoned in piles is a waste. However, the EPA has determined that once processed that coal is either identical (or maybe even superior) to currently mined materials that would have become refuse in the past. The EPA agrees with, and has adopted, the same reasoning expressed by the commenter that the processed material is a product fuel. The disagreement between the EPA and the comment is the status of the legacy piles and the nomenclature of the coal finally burned. The coal is a processed fuel product, not a traditional fuel. Comment: One commenter stated that there are “other relevant factors” that the EPA should consider when determining whether coal refuse from legacy piles should be categorically listed as a non

- waste fuel. Specifically, the commenter believes that the EPA should consider the “overwhelming resultant environmental improvements” associated with the cleanup of abandoned coal refuse piles, including the r eduction of fire hazards and contaminant, siltation, and solids releases into thePage 291 of 527

environment, as an “other relevant factor” as it considers listing legacy coal refuse as a non

- waste fuel in part 241.4. Response: The EPA’s decision to include processed le gacy coal refuse to the list of non

- waste fuels in part 241.4(a) was based on the fact that such materials meet the definition of processing and the legitimacy criteria. We do not need to balance “other relevant factors” in making this determination,

as wo uld be appropriate under an analysis conducted under section 241.4(b)(5)(ii). Comment: The EPA received a few comments regarding the specific wording of how coal refuse recovered from legacy piles should be identified and described in part 241.4(a) should the agency determine to categorically list this NHSM pursuant to part 241.4(a). One commenter suggested inserting the following text as a subsection within part 241.4(a): “Coal refuse that does not constitute currently

- generated coal refuse, but that is
p rocessed in the same manner as currently

- generated coal refuse.” As previously discussed, another commenter stated that the term “post

- processed” was vague and could be interpreted to require additional processing that would hinder the usage of legacy coal refuse piles. Still another commenter suggested referencing the SMCRA in a categorical non

- waste determination for coal refuse, which would ensure that the coal refuse is aPage 292 of 527

fuel and minimize overlapping regulatory jurisdiction that could evolve. Response : As discussed above, we have determined to list “coal refuse that has been recovered from legacy piles and processed in the same manner as currently

- generated coal refuse” to the list of categorical non

- waste fuels, as codified in part 241.4(a) of today’s rulemaking. We believe this language accurately captures the scope of materials at issue and what must occur for the material to be categorically characterized as

a non - waste fuel. That is, this categorical listing only applies to coal refuse that has bee n discarded in the first instance in legacy piles, subsequently recovered or removed from the discard environment and subjected to the same processes and operations as currently generated coal refuse. 123 Further, this language should alleviate any concerns t hat the term “post

- processed” is vague since that term is not being used within this provision as finalized today. We do not agree with the comments that a categorical listing for legacy refuse should specifically reference SMCRA. As we noted in the preamb le to the 2011 NHSM final rule, while the EPA recognizes that SMCRA is concerned with the management

123 We note that it would not be a ppropriate to include currently generated coal refuse within this categorical non

- waste determination, as we have previously determined and continue to believe that currently generated coal refuse is a traditional fuel.Page 293 of 527

and removal of coal refuse piles at mining sites, SMCRA does not address the issue of “discard,” which is critical to the definition of solid waste under R CRA. 124 Thus, a specific reference to SMCRA would be inappropriate as well as confusing. Further, we believe that a specific reference to SMCRA would be in fact more burdensome than the language of the categorical listing being codified today, which simply s tates that legacy coal refuse must be processed in the same manner as currently

generated coal refuse, regardless of whether such processing is done pursuant to SMCRA.
c. Manure In the 2011 NHSM final rule, the EPA stated that based on the information pr ovided, we could not make a blanket determination that all manure is a traditional fuel or that it is a solid waste. However, upon reviewing the few comments and data received, we concluded that animal manure that is used as a fuel “as generated” does not satisfy the legitimacy criteria, and thus, if combusted “as generated,” would be a solid waste. 125 However, the agency also noted that there were circumstances where manure would not be considered a solid waste when burned as a fuel for energy recovery, spec ifically: (1) when the manure remained within the control of the generator and met the

124 See 76 FR 15510. 125 See 76 FR 1548 0.Page 294 of 527

legitimacy criteria; (2) when the manure was sufficiently processed (e.g., via anaerobic digestion or gasification processes) and the resulting material met the legitima cy criteria; and (3) when a facility received a determination from the agency pursuant to 241.3(c) stating that its manure was a

non - waste when used as a fuel. For further discussion regarding our characterization of manure, see the preamble to the 2011
NH SM final rule (76 FR 15479

- 15482). In the December 2011 proposed rule, the agency noted that some parties have identified the potential of manure to not be considered a solid waste. We, therefore, invited parties to present information, including data dem onstrating that manure is not discarded either through the existing non

- waste petition process or the proposed categorical determination process. 126 The agency received no information or data that would allow it to consider proposing to list manure categoric ally as a non

- waste fuel. 127 Therefore, we are not taking any action in the rulemaking with respect to manure. However, the agency did receive several comments from one commenter which we will

126 See 76 FR 80472. 127 In the preamble to the proposed rule, the agency indicated the type of information and data that should be submitted to categorically list manure as a non - waste fuel. Specifically: (1) the extent that use of the NHSM has been integr ally tied to the industrial production process

— information can include combustor design specifications, the extent that the use of the material is integrated across the industry and the extent that use of the NHSM is essential to the industrial process and /or (2) the extent that the NHSM is functionally the same as the comparable traditional fuel and (3) other relevant factors.Page 295 of 527

respond to below. Comment: The commenter states that dried animal manure should be included as a non

- waste with the other fuels in 40 CFR 241.4(a). The commenter contends that there is no evidence that any animal manure is discarded, let alone sent to landfills. Manure is generally used as fertilizer on fields, although an important secondary purpose is for energy recovery/generation. In addition, the commenter states there are several known instances of additional plans for animal manure energy projects that are designed specifically to recover energy, including
governm ent funded projects. The commenter notes that after drying, animal manure has a meaningful Btu value equal to or above that of other biomass that the EPA has determined to be a non

- waste fuel (e.g., bagasse). The commenter also notes that there are contra cts in place for livestock and poultry producers to supply manure to the combustor
. Regarding contaminants in manure, the commenter states that the amount of contaminants is limited because the vast majority of applicable contaminants are directly related to the contaminants contained in the biomass consumed by the animals. The EPA has no t presented any evidence that facilities are combusting manure in order to discard chlorine or nitrogen, the two contaminants identified by the EPA. These concentratedPage 296 of 527

contaminants are no different than what occurs in the production of “byproducts of ethan ol natural fermentation processes,” which the EPA is now proposing to include in the definition of “clean cellulosic biomass.” Based on a “balancing of the legitimacy criteria and other such relevant factors,” the EPA‘s new standard, animal manure should b e included in the 40 CFR 241.4(a) fuels list, along with resinated woods and scrap tires. Response: We disagree with the commenter on several points and do not believe that the case has been made to include animal manure as a categorical non

- waste fuel in 40 CFR 241.4(a). First, in the 2011 NHSM final rule, we previously determined that animal manure that is used as fuel, “as generated,” would not satisfy the legitimacy criteria. This conclusion was based on the fact that such material likely would not sati sfy the meaningful heating value and contaminant legitimacy criterion. 128 Thus, we believe that the burning of such materials (as generated) would not be legitimate and would be seen as burning for discard. Further, the agency has never stated that a NHSM, i ncluding animal manure, has to be landfilled in order to be discarded, as the commenter implies. Regarding the use of manure as fertilizer, we have been clear that this rulemaking does not address that secondary use. The 2011 NHSM final rule states, “We

re cognize that manure may also be beneficially used in other end

128 See 76 FR 15480

- 15481.Page 297 of 527

uses, such as a fertilizer... EPA is not making any determination whether non

- hazardous secondary materials are or are not solid wastes for other possible beneficial end uses. Such beneficial

use determinations are generally made by the states for these other beneficial uses, and EPA will continue to look to the states to make such determinations.” 129 The commenter notes additional plans for animal manure energy projects; however the fact that ther e are plans for future projects does not support a categorical non

- waste determination today. As the EPA has acknowledged, facilities may be able to demonstrate that they satisfy the legitimacy criteria, either through a self

- determination if the manure

re mains within the control of the generator or through the part 241.3(c) non

- waste determination petition process. Thus, any future energy project using animal manure as fuel could utilize either of these options for determining that the manure is a

non - wast e fuel, as appropriate. Regarding the commenter’s points related to meaningful heating value of dried manure, the fact that dried manure may have a greater Btu value than bagasse is not directly on point. To demonstrate that a NHSM has meaningful heating value when used as a fuel, a facility does not compare relative Btu/lb of the NHSM against other traditional fuels, which themselves have

129 76 FR 15482.Page 298 of 527

a wide range of heating values. Rather, consistent with other EPA rulemakings, we have established 5,000 Btu/lb as a b enchmark for demonstrating that a NHSM has meaningful heating value. Thus, to meet the meaningful heating value legitimacy criterion, the material would need to meet an “as fired” heating value of 5,000 Btu/lb, or if lower than 5,000 Btu/lb, as fired, a pe rson would need to demonstrate that the ERU can cost

- effectively recover meaningful energy from the NHSM used as a fuel. 130 We also note that the EPA did not reopen the meaningful heating value for fuels, as codified in 40 CFR part 241.3(d)(1)(ii), in the De cember 23, 2011, proposed rule. Thus, in order to meet this criterion, the dried manure would need to meet an “as fired” heating value of 5,000 Btu/lb, or if lower than 5,000 Btu/lb, the facility would need to demonstrate that the ERU can
cost

- effectively recover meaningful energy from use of manure as a fuel. Regarding the commenter’s statement regarding contracts between livestock and poultry producers and combustors, first we would note that no information has been provided to indicate who has entered s uch contracts or how many such contracts there are to consider this factor. However, as we have stated elsewhere in this preamble, contractual arrangements can be used as evidence that the material is managed as a valuable commodity and that

130 See 76 FR 15541.Page 299 of 527

discard is not occurring when a material is transferred beyond the control of the generator. However, the fact that there is a contractual relationship by itself is not dispositive that a material is not a waste, as there are contracts between parties to remove and disp ose of wastes. We also believe that the commenter’s statements that the concentrated levels of contaminants are no different than what occurs in the production of “byproducts of ethanol natural fermentation processes” is not supported by any information o r data. That is, other than the general statement, the commenter has not provided contaminant data, for either animal manure or byproducts of ethanol natural fermentation processes, for the agency to analyze and compare. Thus, we have determined based on the lack of any information or data that animal manure should not be listed as a categorical non

- waste fuel in part 241.4(a). Comment: In the event that the agency does not list animal manure as a categorical non

- waste fuel, the EPA could alternatively d ecide that processing of animal manure by drying, constitutes “sufficient processing,” such that previously discarded manure could be considered recovered for energy recovery, just like scrap tires could be processed and burned as

a non - waste. Response: In the December 23, 2011 proposal, the agency didPage 300 of 527

not solicit comment on the definition of “processing,” as codified in 40 CFR part 241.2. Thus, this comment is beyond the scope of the rulemaking and will not be addressed in today’s final action. d. Other Ma terials for Which Additional Information was Not Requested

In the December 2011 proposal, the agency solicited comment on a focused list of NHSMs and, in particular, whether these NHSMs would be appropriately included in the categorical list of

non - waste fuels that the agency was proposing in 40 CFR 241.4(a). Specifically, the agency proposed and/or invited comment and additional information regarding potential categorical non

- waste determinations for resinated wood, scrap tires managed pursuant to establ ished tire collection programs, pulp and paper sludges, and coal refuse recovered from legacy piles. Although comment was requested only for these specific materials, the agency received comments that many other NHSMs be listed as categorical non

- wastes for which it did not request additional information as a part of this rulemaking. As we have discussed elsewhere in today’s preamble, we will not be responding to such comments and issues that are beyond the scope of today’s narrow rulemaking. We would als o note that since thePage 301 of 527

agency did not specifically solicit comments on these additional materials or propose that these NHSMs should be categorically listed in 40 CFR 241.4(a), the Agency will be going through notice and comment rulemaking before making a final decision. However, we would like to note two additional NHSMs

— paper recycling residuals and construction and demolition wood processed pursuant to best practices that, based on information provided to the agency, 131 we now believe are good candidates and expect to propose categorical listings in 40 CFR 241.4(a) in the near future for these two materials. With respect to a third
NHSM

— creosote

- treated railroad ties, the Agency has recently received a draft petition from The American Forest & Paper
Assoc iation and the American Wood Council seeking a categorical listing for these materials. As noted below, the Agency has requested additional information from the petitioners with regard to their request. If the additional information supports the represent ations made in the petitioners draft December 6,

131 Comments on December 23, 2011 proposed rule supporting a categorical non - waste for paper recycling residuals: American Forest & Paper Association, et al. EPA

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2012 petition, the EPA expects to propose a categorical listing for this material as well. 132 Paper Recycling Residuals The first of these is paper recycling residuals (including old corrugated cardboard (OCC) rejects). In the 2011 NHSM final rule, EPA determined that paper recycling residuals, referred to as OCC rejects, are not discarded when used under the control of t he generator, such as at pulp and paper mills, since these non

- hazardous secondary materials are part of the industrial process. 133 Regarding the legitimacy criteria, the Agency found that these materials meet the criteria with respect to management as a v aluable commodity and used as a fuel when burned on

- site. In addition, the Agency found that the contaminant levels in these materials are comparable to those in traditional fuels. With respect to the meaningful heating value criterion, the Agency determ ined that OCC rejects meet this criterion if it can be demonstrated that the combustion unit can
cost

- effectively recovery energy from these materials. 134 Since publication of the March 2011 rule, the Agency has received additional information regarding the cost effectiveness of paper recycling residuals use as a fuel, including amounts of

132 See draft letter from Paul Noe to Adminstrator Lisa Jackson, December 6, 2012, (item to be placed in the docket for today’s rule). 133 [76 FR 15487] 134 For a discussion of OCC rejects, see 76 FR 15486

- 7.Page 303 of 527

paper recycling residuals replacing traditional fuels at paper mills and percentages of residuals generated that are combusted as fuel. In general, this information also indicates that this material is primarily combusted as a fuel on

- site or within the control of the generator. 135 We have asked the industry for information to confirm this. EPA believes the information received to date would tend to support a categorical determination of these residuals as non

waste fuels. For residuals that are transferred offsite, the Agency would like additional information about residuals that are also burned as a fuel at facilities that are not under the control of the generator, i ncluding information as to how and where they are burned and whether they are managed as a valuable commodity. If the Agency receives information confirming treatment of these materials offsite, the Agency would expect to include these residuals in a subs equent rulemaking. Construction and Demolition Wood Processed Pursuant to Best Practices The second of these NHSMs is construction and demolition (C&D) wood processed pursuant to best practices and produced and managed under the oversight of a comprehensi ve collection system or contractual arrangement. In the March 2011 final rule, we

135 See "Generation, Management, and Processing of Paper Processing Residuals" (Industrial Economics, October 26, 2012) (these items will be placed in the docket.)Page 304 of 527

determined that C&D wood that is sufficiently processed can be a

non - waste fuel. 136 The Agency has received additional information since the issuance of that rule on specific best management practices used by suppliers/processors of C&D wood. Such practices include processing to remove contaminants. EPA believes the information received to date would tend to support a listing of these materials as a categorical non

- waste fuel and expects to propose that listing in a subsequent rulemaking. Other Materials Under Consideration The American Forest &Paper Association and the American Wood Council submitted a draft petition to EPA on December 6, 2012 seeking a categorical listing for creosote

- treated railroad ties. 137 This draft petition lists their bases for the determination, with supporting information. The information included amounts of railroad ties combusted each year and value of the ties as fuel. Overall, the petitioners believe the information demonstrates that these materials are non

- waste fuels and would allow EPA to categorically list this material, balancing the legitimacy criteria with other relevant factors. The draft petition provides information representing a de termination that the

136 See 76FR 15485 137 Letter from American Forest & Paper Association and American Wood Council to Lisa Jackson, dated December 6, 2012(a copy of this letter can be found in the docket for today’s rule)Page 305 of 527

material has high Btu value, and that the material satisfies the legitimacy criteria. The Agency is still in the process of reviewing the petition. However, in order to inform the scope of the non

- waste category, we have also asked the petitioners to provide additional information, including: 1. A list of industry sectors, in addition to forest product mills, that burn railroad ties for energy
recovery 2. The types of boilers (e.g., kilns, stoker boilers, circulating fluidized bed, etc.) that burn railroad ties for energy recovery 3. The traditional fuels and relative amounts (e.g., startup, 30%, 100%) of these traditional fuels that could otherwise generally be burned in these types of boilers 4. The extent to which non

- industrial boilers (e.g. , commercial or residential boilers) burn railroad ties for energy recovery 5. Laboratory analyses for contaminants known to be present in creosote

- treated railroad ties or known to be significant components of creosote, specifically polycyclic aromatic hydrocarbons (i.e., PAH

- 16), dioxins, dibenzofurans, hexachlorobenzene, biphenyl, quinoline, cresols, and 2,4

- dinitrotoluene.Page 306 of 527

Assuming that the additional information supports and supplements the representations made in the petitioner’s December 6, 2012 dr aft petition, the EPA also expects to propose a categorical listing for this material. To the extent that petitioners would like to provide additional information, the Agency will consider such information as well. EPA has also received a related lette r from the Treated Wood Council asking that nonhazardous treated wood be determined as a categorical non

- waste, a broader category that would include creosote

- treated ties. 138 EPA is in the process of reviewing this letter, and may also propose a categoric al listing for this broader set of treated wood material. Finally, we would note that if any person provides sufficient information to EPA regarding any other NHSM, EPA would also consider listing such material(s) categorically, pursuant to 40 CFR 241.4( b). In the December 2011 proposal, the agency solicited comment on a focused list of NHSMs and, in particular, whether these NHSMs would be appropriately included in the categorical list of

non - waste fuels that the agency was proposing in 40 CFR

138 Letter from Jeffrey Miller, Treated Wood Council to Lisa Feldt, December 17, 2012. (a copy of this letter can be found in the docket t o today’s rule) Additional supporting information is found in the Comments of Treated Wood Council, dated Feb. 20, 2012)( EPA

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241.4(a). Specifically, the agency proposed and/or invited comment and additional information regarding potential categorical non

- waste determinations for resinated wood, scrap tires managed pursuant to established tire collection programs, pulp and paper sludges, and coal refuse recovered from legacy piles. Although comment was requested only for these specific materials, the agency received comments that many other NHSMs be listed as categorical non

- wastes for which it did not request additional information as a part of this rulemaking. As we have discussed elsewhere in today’s preamble, we will not be responding to such comments and issues that are beyond the scope of today’s narrow rulemaking. We would also note that since the agency did not specifically solici t comments on these additional materials or propose that these NHSMs should be categorically listed in 40 CFR 241.4(a), the agency cannot make final decisions without first going through notice and comment rulemaking. However, we would like to note two a dditional
NHSMs

— paper recycling residuals and construction and demolition wood processed pursuant to best practices, based on information provided to the agency, 139 we now believe are good candidates and

139 Comments on December 23, 2011 proposed rule supporting a categorical non

- waste for paper recycling residuals: American Forest & Paper Association, et al. EPA

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- A1; and United Steelworkers (USW) EPA

- HQ

-Page 308 of 527

expect to propose categorical listings in 40 CFR 241. 4(a) in the near future for these two materials. With respect to a third
NHSM

— creosote

- treated railroad ties, the Agency has recently received a draft petition from The American Forest & Paper Association and the American Wood Council seeking a categorica l listing for creosote

- treated railroad ties. As noted below, the Agency has requested additional information from the petitioners with regard to their request. If the additional information supports the representations made in the petitioners December 6, 2012 petition, the EPA expects to propose a categorical listing for this material as well. 140 Paper Recycling Residuals The first of these is paper recycling residuals (including old corrugated cardboard (OCC) rejects). In the 2011 NHSM final rule, E PA determined that paper recycling residuals, referred to as OCC rejects, are not discarded when used under the control of the generator, such as at pulp and paper mills, since these non

- hazardous secondary materials are part of the

RCRA

- 2008

- 0329

- 1910

- A1. Comments supporting a categorical non

- waste for paper recycling residuals and C&D wood: American Forest & Paper Association, et al. EPA

- HQ

RCRA

- 2008

- 0329

- 1946

- A1; Co nstruction Materials Recycling Association (CMRA) EPA

- HQ

RCRA

- 2008

- 0329

- 1928

- A1; Covanta Energy Corporation (Covanta) EPA

- HQ

- RCRA

- 2008

- 0329

- 1893

- A; Energy Recovery Council (ERC) EPA

- HQ

- RCRA

- 2008

- 0329

- 1927

- A1; Georgia

- Pacific LLC (GP) EPA

- HQ

- RCRA

- 2008

- 0329

- 1902

- A1; Michigan Biomass EPA

- HQ

- RCRA

- 2008

- 0329

- 1905

- A1; National Alliance of Forest Owners (NAFO) EPA

- HQ

- RCRA

- 2008

- 0329

- 1950

- A2; United Steelworkers (USW) EPA

- HQ

- RCRA

- 2008

- 0329

- 1910

- A1; Waste Management (WM) EPA

- HQ

- RCRA

2008

- 0329

- 1957

- A2; and Weyerhaeuser EPA

- HQ

- RCRA

- 2008

- 0329

- 1930

- A1. 140 See draft letter from Paul Noe to Adminstrator Lisa Jackson, December 6, 2012, (item to be placed in the docket for today’s rule).Page 309 of 527

industrial process. 141 Regarding the legitimacy criteria, the Agency found that these materials meet the criteria with respect to management as a valuable commodity and used as a fuel when burned on

- site. In addition, the Agency found that the contaminant levels in these mat erials are comparable to those in traditional fuels. With respect to the meaningful heating value criterion, the Agency determined that OCC rejects meet this criterion if it can be demonstrated that the combustion unit can
cost

- effectively recovery energy from these materials. 142 Since publication of the March 2011 rule, the Agency has received additional information regarding the cost effectiveness of paper recycling residuals use as a fuel, including amounts of paper recycling residuals replacing traditio nal fuels at paper mills and percentages of residuals generated that are combusted as fuel. In general, this information also indicates that this material is primarily combusted as a fuel on

- site or within the control of the generator. 143 We have asked the industry for information to confirm this.

EPA believes the information received to date would be useful in making determinations regarding the future listing of these residuals as categorical non

- waste fuels. Assuming the Agency receives information c onfirming that these residuals are

141 [76 FR 15487] 142 For a discussion of OCC rejects, see 76 FR 15486

- 7. 143 See "Generation, Ma nagement, and Processing of Paper Processing Residuals" (Industrial Economics, October 26, 2012) (these items will be placed in the docket.)Page 310 of 527

also burned as a fuel at facilities that are not under the control of the generator, including information as to how and where they are burned and whether they are managed as a valuable commodity, the agency expects to pr opose in a subsequent rulemaking to include residuals that are transferred off

- site in a future categorical listing. Construction and Demolition Wood Processed Pursuant to Best Practices The second of these NHSMs is construction and demolition (C&D) wood processed pursuant to best practices and produced and managed under the oversight of a comprehensive collection system or contractual arrangement. In the March 2011 final rule, we determined that C&D wood that is sufficiently processed can be a

non - waste fuel. 144 The Agency has received additional information since the issuance of that rule regarding specific best management practices used by suppliers/processors of C&D wood. Such practices include processing to remove contaminants. EPA expects to propose in a subsequent rulemaking based on information received to date listing these NHSMs as categorical

non - waste fuels Other Materials Under Consideration The American Forest &Paper Association and the American Wood Council submitted a draft petition to EP A on December 6,

144 See 76FR 15485Page 311 of 527

2012 seeking a categorical listing for creosote

- treated railroad ties. This petition lists their bases for the determination, with supporting information. The information included amounts of railroad ties combusted each year and value of the ties as fuel. Overall, the petitioners believe the information demonstrates that these materials are non

- waste fuels and would allow EPA to categorically list this material, balancing the legitimacy criteria with other relevant factors. 145 The Agency is still in the process of reviewing the petition. However, we have also asked the petitioners to provide additional information, including: A list of industry sectors, in addition to forest product mills, that burn railroad ties for energy recovery The types of boilers (e.g., kilns, stoker boilers, circulating fluidized bed, etc.) that burn railroad ties for
energy recovery The traditional fuels and relative amounts (e.g., startup, 30%, 100%) of these traditional fuels that could otherwise generally be b urned in these types of boilers

145 The petitioners have been primarily focused on creosote

- treated railroad ties and, conseque ntly, EPA has more information regarding this subset of the broader “treated wood” category. Since the petition was recently submitted, the Agency has not had a chance to review the petition completely. To the extent that the petitioners would like to pr ovide additional information, the Agency will consider such information as well.Page 312 of 527

The extent to which non

- industrial boilers (e.g., commercial or residential boilers) burn railroad ties for energy
recovery Laboratory analyses for contaminants known to be present in
creosote

- treated railroad ties or known to be significant components of creosote, specifically polycyclic aromatic hydrocarbons (i.e., PAH

- 16), dioxins, dibenzofurans, hexachlorobenzene, biphenyl, quinoline, cresols, and 2,4

- dinitrotoluene. If the additional information supports the representati ons made in the petitioners December 6, 2012 draft petition, the EPA also expects to propose a categorical listing for this material. Finally, we would note that if any person provides sufficient information to EPA regarding any other NHSM, EPA would al so consider listing such material(s) categorically, pursuant to 40 CFR 241.4(b). 6. Streamlining of the 40 CFR 241.3(c) Non

- Waste Determination Petition Process In the proposed rule, the EPA asked for comments on streamlining or other improvements to the existing provision for

non - waste determinations codified at 40 CFR 241.3(c). The agency requested comment on whether the EPA’s grant of the petition should appl y as of the date that the petition wasPage 313 of 527

submitted to the agency. 146 The agency also requested additional comment on whether any other changes could be made to the non

waste determination petition in order to streamline the process, while at the same time prov ide the EPA with the opportunity to ensure that such NHSMs are not being discarded. For example, the EPA requested comment on whether public comment should be sought on each individual petition. 147 Comment: Concerning the request for comment regarding whe n a petition determination would apply, the agency received several comments. Specifically, the agency requested comment on whether the EPA’s grant of the petition should apply as of the date that the petition was submitted to the agency. Commenters agreed that a non

- waste determination under 40 CFR 241.3(c) should be retroactively applied to the date the petition was submitted. Commenters were concerned about the timeliness of the EPA’s decision on these determinations and on the uncertainty surrounding t he usage of the NHSMs while a non

- waste determination petition is pending. The commenters argue that if a NHSM is determined to be non

- waste, the combusted NHSM in question was also non

- waste prior to the determination.

146 See 76 FR 80473. 147 See 76 FR 80474.Page 314 of 527

Response: The agency understands t he interests of petitioners awaiting an agency decision on the status of materials, while a 40 CFR 241.3(c) petition is being considered. In order to lessen the uncertainty surrounding the regulatory status of a particular material, the agency will utilize the date the petition was submitted as the date that the combusted materials will be considered a non

- waste if the agency grants the petition.
Comment : Many commenters indicated concern that the petition process could take excessive time for the agency to reach a decision. They requested self

- imposed timeframes for the EPA’s granting/denying requests and a shorter length of time for the notices to be open for public comment (or omit it altogether). The combustors stated they need quick decisions in order to comply with the CAA regulations and to make efficient business decisions. Response : The agency considered the commenters suggestion, but decided not to impose a deadline on its decision because there are many factors beyond its control, including how long it takes for the petitioner to submit a complete petition to EPA for evaluation. We would note, however, that even though the NHSM rule will become effective on [Insert 60 days after promulgation in the Federal Register] , for all practical purposes, e xisting facilities that currently burn NHSMs from off

- site sources willPage 315 of 527

have a substantial amount of time to submit and have the EPA
process a non - waste determination petition before having to comply with the CAA emission standards, as the compliance date for existing CISWI sources subject to CAA 129 standards is 5 years after the date of publication of the CISWI final rule or 3 years after the state plan is approved, whichever happens earlier and [Insert 3 years after promulgation in the Federal Register] to comply with the Boiler MACT rule. 148 , 149 Thus, we believe that there will be more than adequate time for persons to determine whether or not a NHSM sent to a combustion unit not under the control of the generator has not been discarded and meets the legitim acy criteria, prepare and submit a non

- waste determination petition to the EPA, have the EPA process the petition, including soliciting comment on the EPA’s proposed determination, and make a final decision. In regard to the comment on reducing the time t he petition application is open for public comment, the agency decided that the comment period shall remain at 30 days but the regulatory text is changed from “at least 30 days" to “30 days” in order to promote clarity, while affording an opportunity for p ublic
comment.

148 We recognize that new sources that are coming online that will have to comply with these rules much sooner than do existing sources. As such, the Agency will consider prioritizing the processing of non

- waste petitions it has received from new sources as appropriate. 149 Note that the compliance date for the Area Source Boiler Rule is March 21, 2014.Page 316 of 527

Comment : One commenter strongly encouraged the agency to develop and deploy an on

- line form to identify materials for

non - waste determinations. Commenters also noted that the EPA should provide more detailed information about how the determi nations are made (particularly for the comparable contaminant determinations). Response : The agency will consider the development of a form to identify the specific information needed to determine whether a NHSM meets the legitimacy criteria and other
prov isions. If the agency develops such a form, it would be made available on the NHSM website. Please note that traditional fuel data (including tables for traditional contaminants) are available to the public, which they may find useful in assessing the cont aminant legitimacy criteria. Refer to those tables in “Contaminant Concentrations in Traditional Fuels: Tables for Comparison” currently posted on the NHSM web site at http://www.epa.gov/osw/nonhaz/define/index.htm. That document will aid in comparing the concentration of contaminants in their NHSMs to concentration of contaminants in traditional fuels. In addition, rule clarification letters and petition findings are also posted on the website when finalized. Comment: A commenter suggested that the non

- w aste petition process should allow for “balancing” of legitimacy criteriaPage 317 of 527

similar to that included for categorical determinations in 40 CFR part 241.4. Response: Under 40 CFR 241.4 of the proposed regulation, the EPA can balance the legitimacy criteria wi th other relevant factors in making categorical non

- waste determinations. As the commenter points out, we have not discussed the applicability for similar balancing under 40 CFR 241.3 non

- waste determination petitions. The EPA distinguished between 40 CFR 241.3 and 40 CFR 241.4 because in the latter, the EPA makes the determination based on its review and analysis of industry

- wide data and other factors, as opposed to a specific site. However, the EPA recognizes the points the commenter raises and will cons ider whether such modifications may be appropriate. Comment: Several commenters were interested in features that streamline and add flexibility to the administrative petition process, particularly in the situation where a petition can apply to multiple co mbustors. One commenter noted that any interested person

– including forest owners

– should be able to initiate the petition process, not just combustors. The petitions should be allowed for entire classes of a NHSM rather than requiring a case

- by

- case a nalysis. These clarifications will encourage all members in the biomass supply chain to promote their products and co

- products as clean, renewable fuels and promote the development of new markets forPage 318 of 5 27

biomass materials. Other commenters also stressed the ne ed for the EPA to clarify that the petition can apply to more than one combustor so that redundant petitions do not need to be filed in every region. A commenter also stated that the benefits from petitions could be achieved more efficiently if the regul atory language was changed to allow for nation

- wide petitions under 40 CFR 241.3(c) for classes of combustion units rather than requiring separate petitions for each EPA region. Response: The agency agrees with the commenters that the process should accom modate for petition applications from third party producers of a NHSM that can be used as a non

- waste NHSM fuel at many combustion units instead of just accepting petitions from individual combustors or combustors within the control of one EPA region. This can make for a more streamlined and efficient process. Therefore, the regulatory provision at 40 CFR 241.3(c) has been modified to allow for the petition to be sent to the Assistant Administrator for the OSWER instead of each Regional Administrator if the petition covers more than one EPA Region. This is at the option of the petitioner. The Assistant Administrator for the OSWER would be responsible for the EPA’s administrative process in order to finalize the petition decision under 40 CFR 241.3(c) and the regulatory language has been modified accordingly.Page 319 of 527

Finally, as noted in the 2011 NHSM final rulemaking, states, or private entities, can submit non

- waste determination petitions to the EPA on behalf of petitioners. They can petition for a single combusto r or a class of combustors (e.g., a specific usage of a non

- hazardous secondary material in a particular state). Therefore, in regard to the comment on nationwide petitions for classes of combustion units, the petition process accommodates for these classe s of combustion units. This assumes that the petition identifies all of the specific NHSMs that the classes of combustion units use as fuel (that are applicable to a 40 CFR 241.3(c) petition) and gives the information necessary to meet the legitimacy crite ria and other requirements. Note that if a petition covers multiple facilities in a single region, the petition should be sent to the Regional Administrator for that Region, not to the Assistant Administrator for the OSWER. Comment: Several commenters ar gued that the 40 CFR 241.3(c) petitions should not require public comment for each individual petition. One commenter stated that “the administrative petition process could be further streamlined by not seeking public comment on every individual petition . By filing an administrative petition, a petitioner is not seeking to changePage 320 of 527

the EPA’s regulatory program or create new legal rights or obligations. Instead, the administrative petition process provides an opportunity for a petitioner to obtain in advance [A]gency concurrence, based on sound science, with respect to the classification of a particular feedstock under existing regulations. In this respect, the administrative petition process differs from the categorical non

- waste determination...where EPA make s changes to the regulatory status of certain non

- hazardous secondary materials that are reflected in the Code of Federal Regulations. Because the public

– through this rulemaking process

– has an opportunity to provide input on EPA’s regulations, there is no need to provide a second opportunity for public comment when those regulations are applied by the EPA in specific contexts through the administrative petition process.” In addition, other commenters indicated that public notice and comment is not nece ssary, since the NHSM rulemaking process has already taken comment on the methodology, in addition to other rationale. In particular, one commenter stated, “Streamlining could be further facilitated by recognizing that solicitation of public comment on eac h individual application would be redundant and unnecessary given the public’s ample opportunity during this rulemaking to comment on the evaluation criteria that will govern non

- waste determination petitions.”Page 321 of 527

Another commenter stated, “The reason for pub lic participation in the hazardous waste petition process is that the materials subject to the petition are to be removed from the hazardous waste regulatory program. In the NHSM world, the secondary materials subject to the petition are merely obtaining c larity about regulatory status

– they are not seeking a change in regulatory status. Therefore, the need for the full public participation process is not necessary or warranted.” Response: Although industry commenters argued that public participation is un necessary, the EPA still believes that public participation is an important part of a transparent decision making process and values how it increases transparency. In the final rule, we will retain the public participation requirement in order to promote p ublic awareness. 7. Revised Introductory Text for 40 CFR 241.3(a) As part of its discussion clarifying the non

- waste determination petition processes, the EPA noted that it had examined a number of specific NHSMs and decided which were to be considered solid wastes based on the record available at the time the March 2011 final rule was issued. 150 The rule itself had stated at 40 CFR 241.3(a) that secondary materials were solid wastes except for those described in section 241.3(b). Essentially, section 241. 3(b) is the operative section that

150 See 76 FR 80473.Page 322 of 527

states what materials are not wastes. The purpose of the non

waste determination petition process in section 241.3(c) and the new proposed petition process in section 241.4 is to allow various parties the opportunity to p rovide information and data so that the EPA could decide what other NHSMs are not solid wastes. The preamble stated that the agency proposed to amend section 241.3(a) to state that such secondary materials are “presumed to be” solid wastes except for those described in section 241.3(b) in order to better reflect the rulemaking record.
Comment : No commenters supported inclusion of the “presumed to be” language in the rule. Most of the commenters on the language argue that it means that the EPA continues to improperly determine that certain NHSMs are presumptively wastes. Commenters generally argue that the “presumed to be” language shows that the EPA, in spite of statements to the contrary, is continuing to make an inappropriate determination that NHSMs tra nsferred to other parties are presumptively wastes until a combustor proves otherwise. According to comments, the use of the “presumed to be” language is a clear statement that the EPA is making the presumption. The addition of these words does not change the fact that, under the EPA’s regulatory framework, NHSMs are wastes until proven otherwise.Page 323 of 527

Several commenters, in fact, argued that to address the legal flaws in the proposal, the EPA should reverse the presumption and presume that NHSMs burned for ene rgy recovery or used as an ingredient is not for the purpose of disposal and, therefore, is not a waste. Response: The EPA is not addressing in this rulemaking the comment that the agency has inappropriately made presumptions about whether materials are w astes. This issue has not been reopened. Instead, the agency has only opened very specific issues on particular wastes. In the December 2011, proposal at 76 FR 80473, the EPA referred to the March 2011 preamble in which the agency stated that it has not “arbitrarily determined that secondary materials transferred between companies are wastes. Instead, the EPA has evaluated whether certain categories of materials are discarded or not. The Agency has not adopted the extremes of saying that all burning of se condary material, regardless of ultimate use, is waste treatment or that any secondary material that is recycled for legitimate fuel value is a commodity and not a waste. Wastes may have value, but are still wastes.” 76 FR 15471. Further, the agency stated that it “has examined a number of specific materials, recycled within the control of the generator and transferred to a third party for recycling, and determined whether they would be appropriately placed within thePage 324 of 527

waste or non

- waste categories.” Id. The EPA went on to examine a number of different categories of NHSMs used as fuels and ingredients that was summarized in the Federal Register (76 FR 15477

- 15520). The EPA cannot “reverse” a presumption that it never made to declare that materials burned for energy recovery are presumptively non

- wastes. Further, it would be entirely improper for the agency to do so. The EPA has evaluated specific groups of materials as to their waste status, while the comments regarding reversal of a purported presumption have only presented arguments “in broad abstraction, providing little detail about the many processes throughout the industry that generate residual material” that could be subject to this rule. Association of Battery Recyclers v. EPA , 208 F.3d 1047, 1056. 151

Ac cordingly, the agency stands on its March 2011 rulemaking record for the issues discussed in these comments. Comment: Comments objected that the change in word choice that materials are “presumed to be” solid wastes from the statement that that materials “are” solid wastes (except as otherwise provided in the regulation) still puts the burden to prove material is not a waste on persons who use NHSMs in combustion units. One comment, in particular, noted that there

151 Note how the April 4, 2012, letter from Timothy G. Hunt to James Berlow (a copy of which is in the docket for today’s rule), provided specific information on pulp and paper sludge where the EPA added a categorical determination based on specific informati on provided by industry.Page 325 of 527

would be no practical effect of the new la nguage even though it is viewed by the EPA as an “optically less drastic stance.” That is, there would be no real leeway for a party in an enforcement proceeding to counter the EPA’s prosecution based on the fact that the secondary material in question is only “presumed to be” a waste, rather than the material “is” a waste. Response: The EPA has decided not to retain the “presumed to be” language, since it is unnecessary and does not actually reflect the rulemaking record. No comment argued in favor of it. In addition, there is no need to temper the existing language stating that a material is a solid waste if it does not fall within the section 241.3(b) categories or the non

- waste determination processes. As noted in the previous response to comments regar ding the agency’s “presumption” of the waste status of materials, the agency stands on its March 2011 rulemaking record. E. Cost and Benefits of the Final Rule The RCRA aspects of this rule do not directly invoke any costs (excluding minor administrative burden/cost), or benefits. Any RCRA related costs to the regulated community, and corresponding benefits to human health and the environment, have been considered as part of the CISWI action, and the corresponding CISWI and Boiler MACT (area source and ma jor source) final rules. As such, the agency has not prepared aPage 326 of 527

separate cost

- benefit assessment in support of this part of the final rule. Consequently, any potential costs or benefits, including impacts to small entities, indirectly associated with the R CRA aspects of this rule are addressed in the corresponding impact assessment prepared in support of the CISWI part of this action. IV. Statutory and Executive Order Reviews A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563 : Improving Regulation and Regulatory Review Under Executive Order 12866 (58 FR 51735, October 4, 1993), this action is a “significant regulatory action” because it may raise novel legal or policy issues. Accordingly, the EPA submitted this action to OMB for review under Executive Order 12866 and 13563 (76 FR 3821, January 21, 2011). Any changes made in response to OMB recommendations have been documented in the docket for this action. In addition, the EPA prepared an update to the RIA of the potential co sts and benefits associated with this action. The RIA available in the docket describes in detail the empirical basis for the EPA’s assumptions and characterizes the various sources of uncertainties affecting the estimates below and a memo documents the up dates since the RIA was prepared. Table 9Page 327 of 527

of this preamble shows the results of the cost and benefits analysis for these final rules. Table 9. Summary of the Monetized Benefits, Social Costs and Net Benefits for the Final CISWI NSPS and EG In 2015 (Million s of 2008$) 1 3 percent Discount Rate 7 percent Discount Rate Total Monetized Benefits 2 $420 to $1,000 $380 to $930 Total Social Costs 3 $258 $258 Net Benefits $160 to $770 $120 to $670

Non

- monetized Benefits Health effects from exposure to HAP 780 tons of HCl, 2.5 tons of lead, 1.8 tons of Cd, 680 pounds of Hg, and 58 grams of dioxins/furans) Health effects from exposure to criteria pollutants (20,000 tons of CO , 6,300 tons of SO 2 , 5,400 tons of NO 2 , and secondary formation of ozone) Ecosystem effects Visibility impairment 1 All estimates are for the implementation year (2015) and are rounded to two significant figures. These results reflect the lowest cost disposal assumption. 2 The total monetized benefits reflect the human health benefits associated with reducing exposure to PM 2.5 through reductions of PM 2.5 precursors such as directly emitted particles, SO 2 , and NO x . It is important to note that the monetized benefits include many but not all health effects associated with PM 2.5 exposure. Monetized benefits are shown as a range from Pope, et al. (2002) to Laden, et al. (2006). These models assume that all fine particles, regardless of their chemical composition, are equally pot ent in causing premature mortality because the scientific evidence is not yet sufficient to allow differentiation of effect estimates by particle type. 3 The methodology used to estimate social costs for 1 year in the multimarket model using surplus change s results in the same social costs for both discount rates.Page 328 of 527

B. Paperwork Reduction Act This action does not require any new information collection. This action is believed to result in no additional impact on the aggregate information collection estimate o f project cost and hour burden made and approved by OMB. Due to changes in the CISWI inventory and monitoring requirements of the CISWI rule, the information collection estimate of project cost and hour burden have been revised. Therefore, only the
CISWI I CR has been revised. The OMB control numbers for the EPA’s regulations in 40 CFR are listed in 40 CFR part 9. However, OMB has previously approved the information collection requirements contained in the existing CISWI and
NHSM 152 regulations (40 CFR part 60 , subparts CCCC and DDDD, and 40 CFR part 241) under the provisions of the Paperwork Reduction
Act , 44 U.S.C. 3501, et seq ., and has been assigned EPA ICR number 2384.04 for subpart CCCC, 40 CFR part 60, EPA ICR number 2385.05 for subpart DDDD, 40 CFR part 60, and EPA ICR number 2382.05 for 40 CFR part 241. C. Regulatory Flexibility Act The RFA generally requires an agency to prepare a regulatory flexibility analysis of any rule subject to notice and comment rulemaking requirements under the APA or any oth er

152 Identification of Non

- Hazardous Secondary Materials That Are Solid Waste, Final Rule. March 11, 2011.Page 329 of 527

statute unless the agency certifies that the rule will not have a SISNOSE. Small entities include small businesses, small organizations and small governmental jurisdictions. For purposes of assessing the impacts of today’s rule on small entities, small entity is defined as: (1) a small business as defined by the SBA’s regulations at 13 CFR 121.201; (2) a small governmental jurisdiction that is a government of a city, county, town, school district or special district with a population of less than 50,000 ; or (3) a small organization that is any not

- for

- profit enterprise that is independently owned and operated and is not dominant in its field. After considering the economic impacts of today’s final rule on small entities, I certify that this action will n ot have a SISNOSE. This final rule will not impose any new requirements on any entities because it does not impose any additional regulatory requirements relative to those specified in the March 2011 final CISWI and NHSM rules. The March 2011 final CISWI a nd NHSM rules were both certified as not having a SISNOSE. In this final action, there are four fewer small entities in the CISWI than in the March 2011 final CISWI rule, as discussed in the “Regulatory Impact Results for the Reconsideration Final for
Stan dards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units” memorandum in the CISWI docket.Page 330 of 527

D. Unfunded Mandates Reform Act This action does not contain a federal mandate that may result in expenditures of $100 million or more for state, local and tribal governments, in the aggregate or the private sector in any one year. This rule finalizes amendments to the final CISWI rule provisions and technical clarifications to the final NHSM rule. Thus, this rule is not subject to the requirements of sections 202 or 205 of UMRA. However, the March 2011 final CISWI rule contains a federal mandate that may result in expenditures of $100 million or more for state, local and trib al governments, in the aggregate, or the private sector in any 1 year. Accordingly, we have prepared under section 202 of the UMRA a written statement, which is summarized in the preamble to the final CISWI rule (76 FR 15747). This rule is also not subjec t to the requirements of section 203 of UMRA because it contains no regulatory requirements that might significantly or uniquely affect small governments. E. Executive Order 13132: Federalism This action does not have federalism implications. It will
not have substantial direct effects on the states, on the relationship between the national government and the states, or on the distribution of power and responsibilities among the various levels of government, as specified in Executive OrderPage 331 of 527

13132. This fina l rule will not impose direct compliance costs on state or local governments and will not preempt state law. Thus, Executive Order 13132 does not apply to this action. F. Executive Order 13175: Consultation and Coordination with Indian Tribal Governments
T his action does not have tribal implications, as specified in Executive Order 13175, (65 FR 67249, November 9, 2000). The EPA is not aware of any CISWI in Indian country or owned or operated by Indian tribal governments. The CISWI aspects of this rule may, however, invoke minor indirect tribal implications to the extent that entities generating solid wastes on tribal lands could be affected. However, any indirect NHSM impacts that may occur as a result of the CISWI action are expected to be negligible due t o the very limited focus of the CISWI part or this rule. Thus, Executive Order 13175 does not apply to this action. G. Executive Order 13045: Protection of Children from Environmental Health Risks and Safety Risks The EPA interprets Executive Order 13045 ( 62 FR 19885, April 23, 1997) as applying to those regulatory actions that concern health or safety risks, such that the analysis required under section 5

- 501 of the Executive Order has the potential to influence the regulation. This action is not subject t oPage 332 of 527

Executive Order 13045 because it is based solely on technology performance and technical corrections. H. Executive Order 13211: Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use This action is not subject to Ex ecutive Order 13211 (66 FR 28355, May 22, 2001), because it is not likely to have a significant adverse effect on the supply, distribution, or use of energy it is not a significant regulatory action under Executive Order 12866
. I. National Technology Transf er and Advancement Act Section 12(d) of the NTTAA of 1995, Public Law No. 104

- 113, 12(d) (15 U.S.C. 272 note) directs the EPA to use VCS in its regulatory activities, unless to do so would be inconsistent with applicable law or otherwise impractical. Volun tary consensus standards are technical standards (e.g., materials specifications, test methods, sampling procedures and business practices) that are developed or adopted by VCS bodies. The NTTAA directs the EPA to provide Congress, through OMB, explanation s when the agency decides not use available and applicable VCS. This action does not involve any revisions to the technical standards or test methods required in the final CISWI rule. Therefore, the EPA did not reconsider the use of any VCS.Page 333 of 527

J. Executive O rder 12898: Federal Actions to Address Environmental Justice in Minority Populations and Low

- Income Populations Executive Order 12898 (59 FR 7629, February 16, 1994) establishes federal executive policy on EJ. Its main provision directs federal agencies, to the greatest extent practicable and permitted by law, to make EJ part of their mission by identifying and addressing, as appropriate, disproportionately high and adverse human health or environmental effects of their programs, policies and activities on minority populations and low

- income populations in the United States. The EPA has determined that this final rule will not have disproportionately high and adverse human health or environmental effects on minority or low

- income populations because it incr eases the level of environmental protection for all affected populations without having any disproportionately high and adverse human health or environmental effects on any population, including any minority or low

- income population. The amendments do not relax the control measures on sources regulated by the CISWI rule, and, therefore, will not cause emissions increases from these sources. The March 2011 final CISWI rule will reduce emissions of all the listed HAP emitted from this source. Furthermore, the targeted revisions finalized in the NHSM section of this rule are designed to improve thePage 334 of 527

management of these materials, thereby helping to further ensure against any disproportionately high and adverse human health or environmental effects on minority or low

- income populations. K. Congressional Review Act The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the SBREFA of 1996, generally provides that before a rule may take effect, the agency promulgating the rule must submit a rule report, which includes a copy of the rule, to each House of the C ongress and to the Comptroller General of the United States. The EPA will submit a report containing this rule and other required information to the U.S. Senate, the U.S. House of Representatives and the Comptroller General of the United States prior to pu blication of the rule in the Federal Register . A major rule cannot take effect until 60 days after it is published in the Federal Register . This action is not a “major rule” as defined by 5 U.S.C. 804(2). This rule will be effective [ INSERT THE DATE OF PUB LICATION OF THE FINAL RULE IN
THE FEDERAL REGISTER ].Commercial and Industrial Solid Waste Incineration Units:

Reconsideration and Final Amendments; Non - Hazardous Secondary

Materials That Are Solid Waste: Final Rule Standards of Performance for New Stationary Sources and Emission

Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units Page 335 of 527 List of Subjects 40 CFR Part 60 Environmental protection, Administrative practice and procedure, Air pollution control, Hazardous substances. 40 CFR Part 241 Environmental protection, air pollution contr ol, waste treatment and disposal.

Dated:

Lisa P. Jackson, Administrator.Page 336 of 527

For the re asons cited in the preamble, Title 40, chapter I, parts 60 and 241 of the Code of Federal Regulations are amended as follows: PART 60 -- [AMENDED] 1. The authority for part 60 continues to read as follows: Authority: 42 U.S.C. 7401, et seq. 2. The delay published at 76 FR 28662, on May 18, 2011, is lifted. Subpart CCCC — [Amended] 3. Section 60.2005 is revised to read as follows: §60.2005 When does this subpart become effective? This subpart takes effect on [ INSERT THE DATE 6 MONTHS
AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]. Some of the requirements in this subpart apply to planning the CISWI unit (i.e., the preconstruction requirements in §§60.2045 and 60.2050). Other requirements such as t he emission limitations and operating limits apply after the CISWI unit begins operation. 4. Section 60.2015 is amended by:

a. Revising paragraph (a)(1). b. Revising paragraph (a)(2). c. Revising paragraph (b).Page 337 of 527

The revisions read as follows: §60.2015 What is a new incineration unit? (a) * * * (1) A CISWI unit that commenced construction after June 4, 2010. (2) A CISWI unit that commenced reconstruction or modification after [ INSERT THE DATE 6 MONTHS AFTER
PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]. (b) This subpart does not affect your CISWI unit if you make physical or operational changes to your incineration unit primarily to comply with subpart DDDD of this part (Emission Guidelines and Compliance Times for Commercial and Industrial Solid Waste Incineration Units). Such changes do not qualify as reconstruction or modification under this subpart. 5. Section 60.2020 is amended by: a. Revising paragraph (c). b. Revising paragraph (e)(3). c. Adding paragraph (e)(4). d. Revising paragraph (f)(3).
e. A dding paragraph (f)(4). f. Revising paragraph (n). g. Adding paragraph (o). The revisions read as follows:Page 338 of 527

§60.2020 What combustion units are exempt from this subpart?

* * * * * (c) Municipal waste combustion units
. Incineration units that are subject to subpart Ea of this part (Standards of Performance for Municipal Waste Combustors); subpart Eb of this part (Standards of Performance for Large Municipal Waste Combustors); subpart Cb of this part (Emission Guidelines and Compliance Time for Large Municipa l Combustors);subpart AAAA of this part (Standards of Performance for Small Municipal Waste Combustion Units); or subpart BBBB of this part (Emission Guidelines for Small Municipal Waste Combustion Units).

* * * * * (e) * * * (3) You submit documentation to the Administrator notifying the EPA that the qualifying small power production facility is combusting homogenous waste. (4) You maintain the records specified in §60.2175(w). (f) * * * (3) You submit documentation to the Administrator notifying the Agency that the qualifying cogeneration facility is combusting homogenous waste. (4) You maintain the records specified in §60.2175(x).Page 339 of 527

* * * * * (n) Sewage sludge incineration units . Incineration units combusting sewage sludge for the purpose of reducing the volume of the sewage sludge by removing combustible matter that are subject to subpart LLLL of this part (Standards of Performance for Sewage Sludge Incineration Units) or subpart MMMM of this part (Emission Guidelines for Sewage Sludge Incineration Un its). (o) Other solid waste incineration units . Incineration units that are subject to subpart EEEE of this part (Standards of Performance for Other Solid Waste Incineration Units) or subpart FFFF of this part (Emission Guidelines and Compliance Times for Other Solid Waste Incineration Units). 6. Section 60.2030 is amended by revising paragraph (c)(10) to read as follows: §60.2030 Who implements and enforces this subpart?

* * * * * (c) * * * (10) Determination of whether a qualifying small power production f acility or cogeneration facility under §60.2020(e) or (f) is combusting homogenous waste. 7. Section 60.2045 is amended by revising paragraph (b) to read as follows:Page 340 of 527

§60.2045 Who must prepare a siting analysis?

* * * * * (b) You must prepare a siting analysis for CISWI units that commenced construction after June 4, 2010, or that commenced reconstruction or modification after [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN THE
FEDERAL REGISTER ].

* * * * * 8. Section 60.2105 is amended by revising paragraph (b) to read as follows: §60.2105 What emission limitations must I meet and by when?

* * * * * (b) An incinerator unit that commenced construction after November 30, 1999, but no later than June 4, 2010, or that commenced reconstruction or modifi cation on or after June 1, 2001 but no later than [ INSERT THE DATE 6 MONTHS
AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] must meet the more stringent emission limit for the respective pollutant in table 1 of this subpart or table 6 of subpa rt DDDD. 9. Section 60.2110 is amended by: a. Revising paragraphs (a)(2), (e), and (f). b. Redesignating paragraph (g) as paragraph (h) and revising newly designated paragraph (h).Page 341 of 527 c. Adding paragraphs (g) and (i). The revisions read as follows: §60.2110 What operating limits must I meet and by when? (a) * * * (2) Minimum pressure drop across the wet particulate matter scrubber, which is calculated as the lowest 1

- hour average pressure drop across the wet scrubber measured during the most recent performance t est demonstrating compliance with the particulate matter emission limitations; or minimum amperage to the wet scrubber, which is calculated as the lowest 1

- hour average amperage to the wet scrubber measured during the most recent performance test demonstra ting compliance with the particulate matter emission limitations.

* * * * * (e) If you use activated carbon sorbent injection to comply with the emission limitations, you must measure the sorbent flow rate during the performance testing. The operating limit for the carbon sorbent injection is calculated as the lowest 1

- hour averag e sorbent flow rate measured during the most recent performance test demonstrating compliance with the mercury emission limitations. For energy recovery units, when your unit operates at lower loads, multiply your sorbent injectionPage 342 of 527

rate by the load fractio n, as defined in this subpart, to determine the required injection rate (e.g., for 50 percent load, multiply the injection rate operating limit by 0.5). (f) If you use selective noncatalytic reduction to comply with the emission limitations, you must measu re the charge rate, the secondary chamber temperature (if applicable to your CISWI unit), and the reagent flow rate during the nitrogen oxides performance testing. The operating limits for the selective noncatalytic reduction are calculated as the highest 1

- hour average charge rate, lower secondary chamber temperature, and lowest reagent flow rate measured during the most recent performance test demonstrating compliance with the nitrogen oxides emission limitations. (g) If you use a dry scrubber to comply with the emission limitations, you must measure the injection rate of each sorbent during the performance testing. The operating limit for the injection rate of each sorbent is calculated as the lowest 1

- hour average injection rate or each sorbent measured during the most recent performance test demonstrating compliance with the hydrogen chloride emission limitations. For energy recovery units, when your unit operates at lower loads, multiply your sorbent injection rate by the load fraction, as defined in t hisPage 343 of 527

subpart, to determine the required injection rate (e.g., for 50 percent load, multiply the injection rate operating limit by 0.5). (h) If you do not use a wet scrubber, electrostatic precipitator, or fabric filter to comply with the emission limitation s, and if you do not determine compliance with your particulate matter emission limitation with a particulate matter CEMS, you must maintain opacity to less than or equal to 10 percent opacity (1

- hour block average). (i) If you use a PM CPMS to demonstrate compliance, you must establish your PM CPMS operating limit and determine compliance with it according to paragraphs (i)(1) through (i)(5) of this section. (1) Determine your operating limit as the average PM CPMS output value recorded during the performa nce test or at a PM CPMS output value corresponding to 75% of the emission limit if your PM performance test demonstrates compliance below 75% of the emission limit. You must verify an existing or establish a new operating limit after each repeated perform ance test. You must repeat the performance test annually and reassess and adjust the site

- specific operating limit in accordance with the results of the performance test.Page 34 4 of 527

a. Your PM CPMS must provide a 4

- 20 milliamp output and the establishment of its relatio nship to manual reference method measurements must be determined in units of milliamps. b. Your PM CPMS operating range must be capable of reading PM concentrations from zero to a level equivalent to at least two times your allowable emission limit. If your PM CPMS is an auto

- ranging instrument capable of multiple scales, the primary range of the instrument must be capable of reading PM concentration from zero to a level equivalent to two times your allowable emission limit.

c. During the initial performance tes t or any such subsequent performance test that demonstrates compliance with the PM limit, record and average all milliamp output values from the PM CPMS for the periods corresponding to the compliance test runs (e.g., average all your PM CPMS output values for three corresponding 2

- hour Method 5I test runs). (2) If the average of your three PM performance test runs are below 75% of your PM emission limit, you must calculate an operating limit by establishing a relationship of PM CPMS signal to PM concentra tion using the PM CPMS instrument zero, the average PM CPMS values correspondingPage 345 of 527

to the three compliance test runs, and the average PM concentration from the Method 5 or performance test with the procedures in (i)(1)through (i)(5)of this section.

a. Determine your instrument zero output with one of the following procedures:

(i) Zero point data for in

- situ instruments should be obtained by removing the instrument from the stack and monitoring ambient air on a test bench. (ii) Zero point data for extractive instruments should be obtained by removing the extractive probe from the stack and drawing in clean ambient air. (iii) The zero point can also can be established obtained by performing manual reference method measurements when the flue gas is free of PM emissions or contain s very low PM concentrations ( e.g., when your process is not operating, but the fans are operating or your source is combusting only natural gas) and plotting these with the compliance data to find the zero intercept.Page 346 of 527
(iv) If none of the steps in paragraphs (i) (a) through (d) of this section are possible, you must use a zero output value provided by the manufacturer.

b. Determine your PM CPMS instrument average in milliamps, and the average of your corresponding three PM compliance test runs, using equation 1.

(Eq. 1) Where:
X 1 = the PM CPMS data points for the three runs constituting the performance test,
Y 1 = the PM concentration value for the three runs constituting the performance test, and n = the number of data points.

c. With your instrument zero expressed in milliamps, your three run average PM CPMS milliamp value, and your three run average PM concentration from your three compliance tests, determine a relationship of lb/Mmbtu per milliamp with equation 2.Page 347 of 527

(Eq 

### . 2)
Where: R = the relative mg/dscm per milliamp for your PM CPMS,
Y 1 = the three run average mg/dscm PM concentration,
X 1 = the three run average milliamp output from you PM CPMS, and z = the milliamp equivalent of your instrument zero determined from (2)(a). d. Determine your source specific 30

- day rolling average operating limit using the mg/dscm per milliamp value from Equation 2 in equation 3, below. This sets your operating limit at the PM CPMS outpu t value corresponding to 75% of your emission limit.

(Eq 

### . 3) Where:

O l = the operating limit for your PM CPMS on a 30

- day rolling average, in milliamps. L = your source emission limit expressed in lb/Mmbtu,Page 348 of 527 z = your instrument zero in milliamps, determined from (2)(a), and R = the relative mg/dscm per milliamp for your PM CPMS, from Equation 3.

(3) If the average of your three PM compliance test runs is at or above 75% of your PM emission limit you must determine your operating limit b y averaging the PM CPMS milliamp output corresponding to your three PM performance test runs that demonstrate compliance with the emission limit using equation 4 and you must submit all compliance test and PM CPMS data according to the reporting requiremen ts in section (5) below.

(Eq. 4)

Where:
X 1 = the PM CPMS data points for all runs i, n = the number of data points, and
O h = your site specific operating limit, in milliamps.

(4) To determine continuous compliance, you must record the PM CPMS output data for all periods when thePage 349 of 527

process is operating and the PM CPMS is not out

- of

- control. You must demonstrate continuous compliance by using all quality

- assured hourly average data collected by the PM CPMS for all operating hours to calculate the arithmetic average operating parameter in units of the operating limit (e.g., milliamps, PM concentration, raw data signal) on a 30

- day rolling average basis. (5) For PM performance test re ports used to set a PM CPMS operating limit, the electronic submission of the test report must also include the make and model of the PM CPMS instrument, serial number of the instrument, analytical principle of the instrument (e.g. (e.g., beta attenuation) , span of the instruments primary analytical range, milliamp value equivalent to the instrument zero output, technique by which this zero value was determined, and the average milliamp signals corresponding to each PM compliance test

run.

10. Section 60.2115 is amended by revising the section heading and the introductory text to read as follows: §60.2115 What if I do not use a wet scrubber, fabric filter, activated carbon injection, selective noncatalyticPage 350 of 527

reduction, an electrostatic precipitator, or a dry scru bber to comply with the emission limitations? If you use an air pollution control device other than a wet scrubber, activated carbon injection, selective noncatalytic reduction, fabric filter, an electrostatic precipitator, or a dry scrubber or limit emiss ions in some other manner, including material balances, to comply with the emission limitations under §60.2105, you must petition the EPA Administrator for specific operating limits to be established during the initial performance test and continuously mon itored thereafter. You must submit the petition at least sixty days before the performance test is scheduled to begin. Your petition must include the five items listed in paragraphs (a) through (e) of this section.

* * * * * 11. Section 60.2120 is amended by r evising the section heading and the section to read as follows: §60.2120 Affirmative Defense for Violation of Emission Standards During Malfunction. 12. In response to an action to enforce the standards set forth in paragraph §60.2105 you may assert an affirma tive defense to a claim for civil penalties for violations of such standards that are caused by malfunction, as defined at 40 CFR 60.2. AppropriatePage 351 of 527

penalties may be assessed if you fail to meet your burden of proving all of the requirements in the affirma tive defense. The affirmative defense shall not be available for claims for injunctive relief. (a) To establish the affirmative defense in any action to enforce such a standard, you must timely meet the reporting requirements in paragraph (b) of this secti on, and must prove by a preponderance of evidence that: (1) The violation: (i) Was caused by a sudden, infrequent, and unavoidable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner; and (ii) Could not have been prevented through careful planning, proper design or better operation and maintenance practices; and (iii) Did not stem from any activity or event that could have been foreseen and avoided, or planned for; and (iv) Was not p art of a recurring pattern indicative of inadequate design, operation, or maintenance; and (2) Repairs were made as expeditiously as possible when a violation occurred; andPage 352 of 527

(3) The frequency, amount, and duration of the violation (including any bypass) we re minimized to the maximum extent practicable; and (4) If the violation resulted from a bypass of control equipment or a process, then the bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; and (5) All possible ste ps were taken to minimize the impact of the violation on ambient air quality, the environment, and human health; and (6) All emissions monitoring and control systems were kept in operation if at all possible, consistent with safety and good air pollution c ontrol practices; and (7) All of the actions in response to the violation were documented by properly signed, contemporaneous operating logs; and (8) At all times, the affected source was operated in a manner consistent with good practices for minimizing

e missions; and (9) A written root cause analysis has been prepared, the purpose of which is to determine, correct, and eliminate the primary causes of the malfunction and the violation resulting from the malfunction event at issue. The analysis shall also s pecify, using best monitoring methods andPage 353 of 527

engineering judgment, the amount of any emissions that were the result of the malfunction. (b) Report. The owner or operator seeking to assert an affirmative defense shall submit a written report to the Adminis trator with all necessary supporting documentation, that it has met the requirements set forth in paragraph (a) of this section. This affirmative defense report shall be included in the first periodic compliance, deviation report or excess emission report otherwise required after the initial occurrence of the violation of the relevant standard (which may be the end of any applicable averaging period). If such compliance, deviation report or excess emission report is due less than 45 days after the initial

o ccurrence of the violation, the affirmative defense report may be included in the second compliance, deviation report or excess emission report due after the initial occurrence of the violation of the relevant standard. 13. Section 60.2125 is amended by:
a. Re vising paragraph (g) introductory text. b. Redesignating paragraphs (g)(2) and (g)(3) as paragraphs (g)(3) and (g)(4), respectively. c. Revising newly designated paragraphs (g)(3) and (g)(4). d. Adding paragraph (g)(2).Page 354 of 527 e. Revising paragraph (i). f. Addin g paragraph (j). The revisions read as follows: §60.2125 How do I conduct the initial and annual performance test?

* * * * * (g) You must determine dioxins/furans toxic equivalency by following the procedures in paragraphs (g)(1) through (4) of this sectio n.

* * * * * (2) Quantify isomers meeting identification criteria 2, 3, 4, and 5 in Section 5.3.2.5 of Method 23, regardless of whether the isomers meet identification criteria 1 and 7. You must quantify the isomers per Section 9.0 of Method 23. (Note: Y ou may reanalyze the sample aliquot or split to reduce the number of isomers not meeting identification criteria 1 or 7 of Section 5.3.2.5.) (3) For each dioxin/furan (tetra

- through octa

chlorinated) isomer measured in accordance with paragraph (g)(1) and (2) of this section, multiply the isomer concentration by its corresponding toxic equivalency factor specified in table 3 of this subpart. (4) Sum the products calculated in accordance with paragraph (g)(3) of this section to obtain the totalPage 355 of 527

concentration of dioxins/furans emitted in terms of toxic equivalency.

* * * * * (i) If you have an applicable opacity operating limit, you must determine compliance with the opacity limit using Method 9 at 40 CFR part 60, appendix A

- 4 of this part, based on three 1

- hour blocks consisting of ten 6

- minute average opacity values, unless you are required to install a continuous opacity monitoring system, consistent with §60.2145 and §60.2165. (j) You must determine dioxins/furans total mass basis by following the proce dures in paragraphs (j)(1) through (3) of this section. (1) Measure the concentration of each dioxin/furan
tetra

- through octa

- chlorinated isomer emitted using EPA Method 23 at 40 CFR part 60, appendix A

- 7. (2) Quantify isomers meeting identification criter ia 2, 3, 4, and 5 in Section 5.3.2.5 of Method 23, regardless of whether the isomers meet identification criteria 1 and 7. You must quantify the isomers per Section 9.0 of Method 23. (Note: You may reanalyze the sample aliquot or split to reduce the numb er of isomers not meeting identification criteria 1 or 7 of Section 5.3.2.5.)Page 356 of 527 (3) Sum the quantities measured in accordance with paragraphs (j)(1) and (2) of this section to obtain the total concentration of dioxins/furans emitted in terms of
total mass ba sis. 14. Section 60.2140 is amended by revising paragraph (c) to read as follows: §60. 2140 By what date must I conduct the initial performance test?

* * * * * (c) If you commence combusting or recommence combusting a solid waste at an existing combustion unit at any commercial or industrial facility and you have not conducted a performance test consistent with the provisions of this subpart while combusting the solid waste within the 6 months preceding the reintroduction of that solid waste in the combustion ch amber, you must conduct a performance test within 60 days commencing or recommencing solid waste combustion. 15. Section 60.2145 is amended by: a. Revising paragraph (a)(6). b. Revising paragraphs (b) through (d). c. Revising paragraphs (f) through (j). d. Re vising paragraph (m)(2). e. Revising paragraph (n)(4).Page 357 of 527 f. Revising paragraphs (s) introductory text, (s)(1) introductory text, and (s)(2). g. Revising paragraph (t) introductory text and (t)(1) introductory text. h. Revising paragraph (u). i. Adding paragr aphs (w) and (x). The revisions read as follows: §60. 2145 How do I demonstrate continuous compliance with the emission limitations and the operating limits? (a) * * * (6) All monitoring systems necessary for compliance with any newly applicable monitoring requirements which apply as a result of the cessation or commencement or recommencement of combusting solid waste must be installed and operational as of the effective date of the waste

- to

fuel, or fuel

- to

- waste switch. All calibration and drift checks mu st be performed as of the effective date of the
waste

- to

- fuel, or fuel

- to

- waste switch. Relative accuracy tests must be performed as of the performance test deadline for PM CEMS (if PM CEMS are elected to demonstrate continuous compliance with the particul ate matter emission limits). Relative accuracy testing for other CEMS need not be repeated if that testing was previously performedPage 358 of 527

consistent with Clean Air Act section 112 monitoring requirements or monitoring requirements under this subpart. (b) You mus t conduct an annual performance test for the pollutants listed in table 1 of this subpart or tables 5 through 8 of this subpart and opacity for each CISWI unit as required under §60.2125. The annual performance test must be conducted using the test methods listed in table 1 of this subpart or tables 5 through 8 of this subpart and the procedures in §60.2125. Annual performance tests are not required if you use CEMS or continuous opacity monitoring systems to determine compliance. (c) You must continuously m onitor the operating parameters specified in §60.2110 or established under §60.2115 and as specified in §60.2170. Use 3

- hour block average values to determine compliance (except for baghouse leak detection system alarms) unless a different averaging period is established under §60.2115 or, for energy recovery units, where the averaging time for each operating parameter is a 30

- day rolling, calculated each hour as the average of the previous 720 operating hours. Operation above the established maximum, below the established minimum, or outside the allowable range of operating limits specified in paragraph (a) of this section constitutes a deviation from your operating limits established under thisPage 359 of 527

subpart, except during performance tests conducted to determin e compliance with the emission and operating limits or to establish new operating limits. Operating limits are confirmed or reestablished during performance tests. (d) You must burn only the same types of waste and fuels used to establish subcategory appli cability (for energy recovery units) and operating limits during the performance test.

* * * * * (f) For energy recovery units, you must conduct an annual performance test for opacity (except where particulate matter CEMS or continuous opacity monitoring systems are used are used) and the pollutants listed in table 6 of this subpart. (g) You may elect to demonstrate continuous compliance with the carbon monoxide emission limit using a carbon monoxide CEMS according to the following requirements: (1) You m ust measure emissions according to §60.13 to calculate 1

- hour arithmetic averages, corrected to 7 percent oxygen. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen con tent. You must demonstrate initial compliance with the carbon monoxide emissions limit using a 30

- day rolling average of these 1

-Page 360 of 527

hour arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, ca lculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

– 7 of this part. (2) Operate the carbon monoxide CEMS in accordance with the requirements of performance specification 4A of appendix B of this part and quality assurance procedure 1 of appendix F of this part. (h) Coal and liquid/gas energy recovery units with average annual heat input rates greater than or equal to 250 MMBtu/hr may elect to demonstrate continuous compliance with the particulate matter e missions limit using a particulate matter CEMS according to the procedures in §60.2165(n) instead of the particulate matter continuous parameter monitoring system (CPMS) specified in §60.2145. Coal and liquid/gas energy recovery units with annual average h eat input rates less than 250 MMBtu/hr, incinerators, and small remote incinerators may also elect to demonstrate compliance using a particulate matter CEMS according to the procedures in §60.2165(n) instead of particulate matter testing with EPA Method 5 at 40 CFR part 60, appendix A

- 3 and, if applicable, the continuous opacity monitoring requirements in paragraph (i) of this section.Page 361 of 527 (i) For energy recovery units with annual average heat input rates greater than or equal to 10 MMBtu/hour and less than 25 0 MMBtu/hr, you must install, operate, certify and maintain a continuous opacity monitoring system (COMS) according to the procedures in §60.2165. (j) For waste

- burning kilns, you must conduct an annual performance test for cadmium, lead, dioxins/furans

a nd hydrogen chloride as listed in table 7 of this subpart. You must determine compliance with hydrogen chloride using a hydrogen chloride CEMS if you do not use an acid gas wet scrubber or dry scrubber. You must determine compliance with nitrogen oxides, s ulfur dioxide, and carbon monoxide using CEMS. You must determine compliance with particulate matter using CPMS. You must determine compliance with the mercury emissions limit using a mercury CEMS according to the following requirements: (1) Operate a CEMS system in accordance with performance specification 12A of 40 CFR part 60, appendix B or a sorbent trap based integrated monitor in accordance with performance specification 12B of 40 CFR part 60, appendix B. The duration of the performance test must be a calendar month. For each calendar month in which the waste

burning kiln operates, hourly mercury concentration data, and stack gas volumetric flow rate data must be obtained.Page 362 of 527

You must demonstrate compliance with the mercury emissions limit using a 30

- day rolling average of these 1

- hour mercury concentrations, including CEMS data during startup and shutdown as defined in this subpart, calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

– 7 of this part. C EMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. (2) Owners or operators using a mercury CEMS must install, operate, calibrate, and maintain an instrument fo r continuously measuring and recording the mercury mass emissions rate to the atmosphere according to the requirements of performance specifications 6 and 12A of 40 CFR part 60, appendix B, and quality assurance procedure 6 of 40 CFR part 60, appendix F. ( 3) The owner or operator of a waste

- burning kiln must demonstrate initial compliance by operating a mercury CEMS while the raw mill of the in

- line kiln/raw mill is operating under normal conditions and including at least one period when the raw mill is off
.

* * * * * (m) * * *Page 363 of 527 (2) Use a flow sensor with a measurement sensitivity at full scale of no greater than 2 percent.

* * * * * (n) * * * (4) Perform checks at the frequency outlined in your site

- specific monitoring plan to ensure pressure
measurements ar e not obstructed (e.g., check for pressure tap pluggage daily).

* * * * * (s) For facilities using a CEMS to demonstrate compliance with the sulfur dioxide emission limit, compliance with the sulfur dioxide emission limit may be demonstrated by using the C EMS specified in §60.2165 to measure sulfur dioxide. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. You must calculate a 30

- day rolling average of the 1

- ho ur arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, Appendix A

- 7 of this part. The sulfur dioxide CEMS must be operated according to performance specification 2 in appendix B of this part and must follow the procedures and methodsPage 364 of 527

specified in this paragraph (s). For sources that have actual inlet emissions less than 100 parts per million dry volume, the relative accuracy criterion for inlet sulfur dioxide CEMS should be no greater than 20 percent of the mean value of the reference method test data in terms of the units of the emission standard, or 5 parts per million dry volume absolute value of the mean difference between the reference method and the CEMS, whichever is greater. (1) During each relative accuracy test run of the CEMS required by performance specification 2 in appendix B of this part, collect sulfur dioxide and oxygen (or carbon dioxide) data concurrently (or within a 30

- to 60

- minute period) with both the CEMS and the test methods specified in paragraphs (s)(1)(i) and (s)(1)(ii) of this section.

* * * * * (2) The span value of the CEMS at the inlet to the sulfur dioxide control d evice must be 125 percent of the maximum estimated hourly potential sulfur dioxide emissions of the unit subject to this rule. The span value of the CEMS at the outlet of the sulfur dioxide control device must be 50 percent of the maximum estimated hourly potential sulfur dioxide emissions of the unit subject to this rule.

* * * * *Page 365 of 527 (t) For facilities using a CEMS to demonstrate continuous compliance with the nitrogen oxides emission limit, compliance with the nitrogen oxides emission limit may be demonstra ted by using the CEMS specified in §60.2165 to measure nitrogen oxides. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. You must calculate a 30

- day rolling average of the 1

- hour arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7 of this part. Th e nitrogen oxides CEMS must be operated according to performance specification 2 in appendix B of this part and must follow the procedures and methods specified in paragraphs (t)(1) through (t)(5) of this section. (1) During each relative accuracy test run of the CEMS required by performance specification 2 of appendix B of this part, collect nitrogen oxides and oxygen (or carbon dioxide) data concurrently (or within a 30

- to 60

- minute period) with both the CEMS and the test methods specified in paragraphs (t)(1)(i) and (t)(1)(ii) of this section.

* * * * *Page 366 of 527 (u) For facilities using a CEMS to demonstrate continuous compliance with any of the emission limits of this subpart, you must complete the following: (1) Demonstrate compliance with the appropriate emiss ion limit(s) using a 30

- day rolling average of 1

- hour arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7 of this part. CEMS data during startup and shutdown, as defined in the subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. (2) Operate all CEMS in accordance with the applicable procedures under appendices B and F of this part.

* * * * * (w) For energy recovery units with a design heat input capacity of 100 MMBtu per hour or greater that do not use a carbon monoxide CEMS, you must install, operate, and maintain a oxygen analyzer system as de fined in §60.2265 according to the procedures in paragraphs (w)(1) through (4) of this section. (1) The oxygen analyzer system must be installed by the initial performance test date specified in §60.2675.Page 367 of 527 (2) You must operate the oxygen trim system within compliance with paragraph (w)(3) of this section at all times. (3) You must maintain the oxygen level such that the 30

- day rolling average that is established as the operating limit for oxygen is not below the lowest hourly average oxygen concentration me asured during the most recent CO performance test. (4) You must calculate and record a 30

- day rolling average oxygen concentration using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 of Appendix A

- 7 of this part. (x) For energy recovery units with annual average heat input rates greater than or equal to 250 MMBtu/hour and
waste

- burning kilns, you must install, calibrate, maintain, and operate a PM CPMS and record the output of the system as specified in paragraphs (x)(1) through (8) of this

se ction. For other energy recovery units, you may elect to use PM CPMS operated in accordance with this section. PM CPMS are suitable in lieu of using other CMS for monitoring PM compliance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure ). (1) Install, calibrate, operate, and maintain your PM CPMS according to the procedures in your approved site

-Page 368 of 527

specific monitoring plan developed in accordance with §60.2145(l) and (x)(1)(i) through (iii) of this section. (i) The operating principle of th e PM CPMS must be based on in

- stack or extractive light scatter, light scintillation, beta attenuation, or mass accumulation detection of the exhaust gas or representative sample. The reportable measurement output from the PM CPMS must be expressed as mill iamps. (ii) The PM CPMS must have a cycle time (i.e., period required to complete sampling, measurement, and reporting for each measurement) no longer than 60 minutes. (iii) The PM CPMS must be capable of detecting and responding to particulate matter conc entrations of no greater than 0.5 mg/actual cubic meter. (2) During the initial performance test or any such subsequent performance test that demonstrates compliance with the PM limit, you must adjust the site

- specific operating limit in accordance with th e results of the performance test according to the procedures specified in §60.2110. (3) Collect PM CPMS hourly average output data for all energy recovery unit or waste

- burning kiln operating hours. Express the PM CPMS output as milliamps.Page 369 of 527
(4) Calculate t he arithmetic 30

- day rolling average of all of the hourly average PM CPMS output collected during all energy recovery unit or waste

- burning kiln operating hours data (milliamps). (5) You must collect data using the PM CPMS at all times the energy recovery unit or waste

- burning kiln is operating and at the intervals specified in paragraph (x)(1)(ii) of this section, except for periods of monitoring system malfunctions, repairs associated with monitoring system malfunctions, required monitoring system quality assurance or quality control activities (including, as applicable, calibration checks and required zero and span adjustments), and any scheduled maintenance as defined in your site

- specific monitoring plan. (6) You must use all the data collected during a ll energy recovery unit or waste

- burning kiln operating hours in assessing the compliance with your operating limit except: (i) Any data collected during monitoring system malfunctions, repairs associated with monitoring system malfunctions, or required mo nitoring system quality assurance or quality control activities conducted during monitoring system malfunctions are not used in calculations (report any such periods in your annual deviation report);Page 370 of 527 (ii) Any data collected during periods when the monitori ng system is out of control as specified in your site

- specific monitoring plan, repairs associated with periods when the monitoring system is out of control, or required monitoring system quality assurance or quality control activities conducted during out

- of

- control periods are not used in calculations (report emissions or operating levels and report any such periods in your annual deviation report); (iii) Any PM CPMS data recorded during periods of CEMS data during startup and shutdown, as defined in this subpart. (7) You must record and make available upon request results of PM CPMS system performance audits, as well as the dates and duration of periods from when the PM CPMS is out of control until completion of the corrective actions necessary to return the PM CPMS to operation consistent with your site

- specific monitoring plan. (8) For any deviation of the 30

- day rolling average PM CPMS average value from the established operating parameter limit, you must: (i) Within 48 hours of the deviation, visually inspect the air pollution control device;Page 371 of 527 (ii) If inspection of the air pollution control device identifies the cause of the deviation, take corrective action as soon as possible and return the PM CPMS measurement to within the established value; and (iii) Within 30 days of the deviation or at the time of the annual compliance test, whichever comes first, conduct a PM emissions compliance test to determine compliance with the PM emissions limit and to verify. Within 45 days of the deviation, you must re

- est ablish the CPMS operating limit. You are not required to conduct additional testing for any deviations that occur between the time of the original deviation and the PM emissions compliance test required under this paragraph. (iv) PM CPMS deviations leadin g to more than four required performance tests in a 12

- month process operating period (rolling monthly) constitute a violation of this subpart. 16. Section 60.2165 is amended by: a. Revising paragraph (c). b. Revising paragraphs (g) through (k). c. Revising paragraphs (l)(1) and (l)(2). d. Revising paragraph (m) introductory text.Page 372 of 527 e. Revising paragraphs (n) introductory text, (n)(6), (n)(7), (n)(9) through (n)(11), (n)(12) introductory text, and (n)(12)(ii). f. Revising paragraphs (o)(1) and (o)(2). g. Adding paragraphs (q) and (r). h. Removing paragraph (n)(14). The revisions read as follows: §60. 2165 What monitoring equipment must I install and what parameters must I monitor?

* * * * * (c) If you are using something other than a wet scrubber, activated carb on, selective non

- catalytic reduction, an electrostatic precipitator, or a dry scrubber to comply with the emission limitations under §60.2105, you must install, calibrate (to the manufacturers’ specifications), maintain, and operate the equipment

necessar y to monitor compliance with the site

- specific operating limits established using the procedures in §60.2115.

* * * * * (g) For waste

- burning kilns not equipped with a wet scrubber or dry scrubber, in place of hydrogen chloride testing with EPA Method 321 at 40 CFR part 63, appendix A, an owner or operator must install, calibrate, maintain, andPage 373 of 527

operate a CEMS for monitoring hydrogen chloride emissions discharged to the atmosphere and record the output of the system. To demonstrate continuous compliance wit h the hydrogen chloride emissions limit for units other than
waste

- burning kilns not equipped with a wet scrubber or dry scrubber, a facility may substitute use of a hydrogen chloride CEMS for conducting the hydrogen chloride annual performance test, monit oring the minimum hydrogen chloride sorbent flow rate, monitoring the minimum scrubber liquor pH, and monitoring minimum injection rate. (h) To demonstrate continuous compliance with the particulate matter emissions limit, a facility may substitute use of a particulate matter CEMS for conducting the PM annual performance test and using other CMS for monitoring PM compliance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure). (i) To demonstrate continuous compliance with the dioxin/furan e missions limit, a facility may substitute use of a continuous automated sampling system for the dioxin/furan annual performance test. You must record the output of the system and analyze the sample according to EPA Method 23 at 40 CFR part 60, appendix A

- 7 of this part. This option to use a continuous automated sampling system takes effect on the date a final performance specificationPage 374 of 527

applicable to dioxin/furan from continuous monitors is published in the Federal Register . The owner or operator who elects t o continuously sample dioxin/furan emissions instead of sampling and testing using EPA Method 23 at 40 CFR part 60, appendix A

- 7 must install, calibrate, maintain, and operate a continuous automated sampling system and must comply with the requirements spe cified in §60.58b(p) and (q). A facility may substitute continuous dioxin/furan monitoring for the minimum sorbent flow rate, if activated carbon sorbent injection is used solely for compliance with the dioxin/furan emission limit. (j) To demonstrate conti nuous compliance with the mercury emissions limit, a facility may substitute use of a continuous automated sampling system for the mercury annual performance test. You must record the output of the system and analyze the sample at set intervals using any s uitable determinative technique that can meet performance specification 12B. The owner or operator who elects to continuously sample mercury emissions instead of sampling and testing using EPA Reference Method 29 or 30B at 40 CFR part 60, appendix A

- 8 of t his part, ASTM D6784

- 02 (Reapproved 2008) (incorporated by reference, see §60.17), or an approved alternative method for measuring mercury emissions, must install, calibrate, maintain, and operate aPage 375 of 527

continuous automated sampling system and must comply with performance specification 12A and quality assurance procedure 5, as well as the requirements specified in §60.58b(p) and (q). A facility may substitute continuous mercury monitoring for the minimum sorbent flow rate, if activated carbon sorbent injection is used solely for compliance with the mercury emission limit. (k) To demonstrate continuous compliance with the nitrogen oxides emissions limit, a facility may substitute use of a CEMS for the nitrogen oxides annual performance test to demonstrate complia nce with the nitrogen oxides emissions limits and monitoring the charge rate, secondary chamber temperature, and reagent flow for selective noncatalytic reduction, if applicable. (1) Install, calibrate, maintain, and operate a CEMS for measuring nitrogen oxides emissions discharged to the atmosphere and record the output of the system. The requirements under performance specification 2 of appendix B of this part, the quality assurance procedure one of appendix F of this part and the procedures under §60.13 must be followed for installation, evaluation, and operation of the CEMS. (2) Following the date that the initial performance test for nitrogen oxides is completed or is required to bePage 376 of 527

completed under §60.2125, compliance with the emission limit for nitro gen oxides required under §60.52b(d) must be determined based on the 30

- day rolling average of the hourly emission concentrations using CEMS outlet data. The 1

- hour arithmetic averages must be expressed in parts per million by volume corrected to 7 percent oxygen (dry basis) and used to calculate the 30

- day rolling average concentrations. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic a verages must be calculated using the data points required under §60.13(e)(2). (l) * * * (1) Install, calibrate, maintain, and operate a CEMS for measuring sulfur dioxide emissions discharged to the atmosphere and record the output of the system. The requi rements under performance specification 2 of appendix B of this part, the quality assurance requirements of procedure one of appendix F of this part and procedures under §60.13 must be followed for installation, evaluation, and operation of the CEMS. (2) F ollowing the date that the initial performance test for sulfur dioxide is completed or is required to be completed under §60.2125, compliance with the sulfurPage 377 of 527

dioxide emission limit may be determined based on the 30

- day rolling average of the hourly arithme tic average emission concentrations using CEMS outlet data. The 1

- hour arithmetic averages must be expressed in parts per million corrected to 7 percent oxygen (dry basis) and used to calculate the 30

- day rolling average emission concentrations. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic averages must be calculated using the data points required under §60.13(e)(2). (m) For energy re covery units over 10 MMBtu/hr but less than 250 MMBtu/hr annual average heat input rates that do not use a wet scrubber, fabric filter with bag leak detection system, or particulate matter CEMS, you must install, operate, certify, and maintain a continuous opacity monitoring system according to the procedures in paragraphs (m)(1) through (5) of this section by the compliance date specified in §60.2105. Energy recovery units that use a CEMS to demonstrate initial and continuing compliance according to the pr ocedures in §60.2165(n) are not required to install a continuous opacity monitoring system and must perform the annual performance tests for the opacity consistent with §60.2145(f).Page 378 of 527

* * * * * (n) For coal and liquid/gas energy recovery units, incinerators, and small remote incinerators, an owner or operator may elect to install, calibrate, maintain, and operate a CEMS for monitoring particulate matter emissions discharged to the atmosphere and record the output of the system. The owner or operator of an aff ected facility who continuously monitors particulate matter emissions instead of conducting performance testing using EPA Method 5 at 40 CFR part 60, appendix A

- 3 or, as applicable, monitor with a particulate matter CPMS according to paragraph (r) of this section, must install, calibrate, maintain, and operate a CEMS and must comply with the requirements specified in paragraphs (n)(1) through (n)(13) of this section.

* * * * * (6) The owner or operator of an affected facility must conduct an initial perfo rmance test for particulate matter emissions as required under §60.2125. Compliance with the particulate matter emission limit, if PM CEMS are elected for demonstrating compliance, must be determined by using the CEMS specified in paragraph (n) of this sec tion to measure particulate matter. You must calculate a 30

- day rolling average of 1

- hour arithmetic average emission concentrations, including CEMS data during startup andPage 379 of 527

shutdown, as defined in this subpart, using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7. (7) Compliance with the particulate matter emission limit must be determined based on the 30

- day rolling average calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR p art 60, appendix A

- 7 from the 1

- hour arithmetic average CEMS outlet data.

* * * * * (9) The 1

- hour arithmetic averages required under paragraph (n)(7) of this section must be expressed in milligrams per dry standard cubic meter corrected to 7 percent oxygen (dry basis) and must be used to calculate the 30

- day rolling average emission con centrations. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic averages must be calculated using the data points required under §60.13(e )(2). (10) All valid CEMS data must be used in calculating average emission concentrations even if the minimum CEMS data requirements of paragraph (n)(8) of this section are
not met.Page 380 of 527 (11) The CEMS must be operated according to performance specification 11 in appendix B of this part. (12) During each relative accuracy test run of the CEMS required by performance specification 11 in appendix B of this part, particulate matter and oxygen (or carbon dioxide) data must be collected concurrently (or within a 30

- to 60

- minute period) by both the CEMS and the following test methods.

* * * * * (ii) For oxygen (or carbon dioxide), EPA Reference Method 3A or 3B, as applicable, must be used.

* * * * * (o) * * * (1) Install, calibrate, maintain, and operate a CEMS for measuring carbon monoxide emissions discharged to the atmosphere and record the output of the system. The requirements under performance specification 4B of appendix B of this part, the quality assurance procedure 1 of appendix F of this part and the proce dures under §60.13 must be followed for installation, evaluation, and operation of the CEMS. (2) Following the date that the initial performance test for carbon monoxide is completed or is required to be completed under §60.2140, compliance with the carbonPage 381 of 527

monoxide emission limit may be determined based on the 30

- day rolling average of the hourly arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, using CEMS outlet data. Except for CEMS dat a during startup and shutdown, as defined in this subpart, the 1

- hour arithmetic averages must be expressed in parts per million corrected to 7 percent oxygen (dry basis) and used to calculate the 30

- day rolling average emission concentrations. CEMS data d uring startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic averages must be calculated using the data points required under §60.13(e)(2).

* * * * * (q) Fo r energy recovery units with a design heat input capacity of 100 MMBtu per hour or greater that do not use a carbon monoxide CEMS, you must install, operate, and maintain a oxygen analyzer system as defined in §60.2265 according to the procedures in paragr aphs (q)(1) through (4) of this section. (1) The oxygen analyzer system must be installed by the initial performance test date specified in §60.2675.Page 382 of 527 (2) You must operate the oxygen trim system within compliance with paragraph (q)(3) of this section at al l times. (3) You must maintain the oxygen level such that the 30

- day rolling average that is established as the operating limit for oxygen according to paragraph (q)(4) or this section is not below the lowest hourly average oxygen concentration measured du ring the most recent CO performance test. (4) You must calculate and record a 30

- day rolling average oxygen concentration using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 of Appendix A

- 7 of this part. (r) For energy recovery units with ann ual average heat input rates greater than or equal to 250 MMBtu/hour and
waste

- burning kilns, you must install, calibrate, maintain, and operate a PM CPMS and record the output of the system as specified in paragraphs (r)(1) through (8) of this section. If you elect to use a particulate matter CEMS as specified in paragraph (n) of this section, you are not required to use a PM CPMS to monitor particulate matter emissions. For other energy recovery units, you may elect to use PM CPMS operated in accordance w ith this section. PM CPMS are suitable in lieu of using other CMS for monitoringPage 383 of 527

PM compliance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure) (1) Install, calibrate, operate, and maintain your PM CPMS according to the procedures in y our approved site

specific monitoring plan developed in accordance with §60.2145(l) and (r)(1)(i) through (iii) of this section. (i) The operating principle of the PM CPMS must be based on in

- stack or extractive light scatter, light scintillation, beta att enuation, or mass accumulation detection of PM in the exhaust gas or representative sample. The reportable measurement output from the PM CPMS must be expressed as milliamps. (ii) The PM CPMS must have a cycle time (i.e., period required to complete sampli ng, measurement, and reporting for each measurement) no longer than 60 minutes. (iii) The PM CPMS must be capable of detecting and responding to particulate matter concentrations of no greater than 0.5 mg/actual cubic meter. (2) During the initial performa nce test or any such subsequent performance test that demonstrates compliance with the PM limit, you must adjust the site

- specific operating limit in accordance with the results of the performance test according to the procedures specified in §60.2110.Page 384 of 527
(3) Collect PM CPMS hourly average output data for all energy recovery unit or waste

- burning kiln operating hours. Express the PM CPMS output as milliamps. (4) Calculate the arithmetic 30

- day rolling average of all of the hourly average PM CPMS output collect ed during all energy recovery unit or waste

- burning kiln operating hours data (milliamps). (5) You must collect data using the PM CPMS at all times the energy recovery unit or waste

- burning kiln is operating and at the intervals specified in paragraph (r)( 1)(ii) of this section, except for periods of monitoring system malfunctions, repairs associated with monitoring system malfunctions, required monitoring system quality assurance or quality control activities (including, as applicable, calibration checks a nd required zero and span adjustments), and any scheduled maintenance as defined in your site

- specific monitoring plan. (6) You must use all the data collected during all energy recovery unit or waste

- burning kiln operating hours in assessing the complianc e with your operating limit except: (i) Any data collected during monitoring system malfunctions, repairs associated with monitoring system malfunctions, or required monitoring system qualityPage 385 of 527

assurance or quality control activities conducted during monitor ing system malfunctions are not used in calculations (report any such periods in your annual deviation report); (ii) Any data collected during periods when the monitoring system is out of control as specified in your site

- specific monitoring plan, repairs associated with periods when the monitoring system is out of control, or required monitoring system quality assurance or quality control activities conducted during out

- of

- control periods are not used in calculations (report emissions or operating levels a nd report any such periods in your annual deviation report); (iii) Any PM CPMS data recorded during periods of CEMS data during startup and shutdown, as defined in this subpart. (7) You must record and make available upon request results of PM CPMS system performance audits, as well as the dates and duration of periods from when the PM CPMS is out of control until completion of the corrective actions necessary to return the PM CPMS to operation consistent with your site

- specific monitoring plan. (8) For any deviation of the 30

- day rolling average PM CPMS average value from the established operating parameter limit, you must:Page 386 of 527 (i) Within 48 hours of the deviation, visually inspect the air pollution control device; (ii) If inspection of the air pollution contro l device identifies the cause of the deviation, take corrective action as soon as possible and return the PM CPMS measurement to within the established value; and (iii) Within 30 days of the deviation or at the time of the annual compliance test, whichever comes first, conduct a PM emissions compliance test to determine compliance with the PM emissions limit and to verify. Within 45 days of the deviation, you must re

- establish the CPMS operating limit. You are not required to conduct additional testing for any deviations that occur between the time of the original deviation and the PM emissions compliance test required under this paragraph. (iv) PM CPMS deviations leading to more than four required performance tests in a 12

- month process operating period ( rolling monthly) constitute a violation of this subpart.

(s) If you use a dry scrubber to comply with the emission limits of this subpart, you must monitor the injection rate of each sorbent and maintain the 3

- hourPage 387 of 527

block averages at or above the operatin g limits established during the hydrogen chloride performance test. 17. Section 60.2170 is amended by revising paragraph (b) to read as follows: §60. 2170 Is there a minimum amount of monitoring data I must obtain?

* * * * * (b) You may not use data recorded du ring monitoring system malfunctions or out

- of

- control periods, repairs associated with monitoring system malfunctions or out

- of

control periods, or required monitoring system quality assurance or control activities in calculations used to report emissions or operating levels. You must use all the data collected during all other periods in assessing the operation of the control device and associated control system.

* * * * * 18. Section 60.2175 is amended by: a. Revising the introductory text. b. Revising paragr aph (b)(5). c. Revising paragraph (e). d. Revising paragraph (p)(4). e. Adding paragraphs (p)(8) and (p)(9). f. Revising paragraphs (v) and (w).Page 388 of 527 g. Adding paragraph (x). The revisions read as follows: §60.2175 What records must I keep? You must maintain th e items (as applicable) as specified in paragraphs (a), (b), and (e) through (x) of this section for a period of at least 5 years:

* * * * * (b) * * * (5) For affected CISWI units that establish operating limits for controls other than wet scrubbers under §60.2110(d) through (g) or §60.2115, you must maintain data collected for all operating parameters used to determine compliance with the operating limits. For energy recovery units using activated carbon injection or a dry scrubber, you must also maintain records of the load fraction and corresponding sorbent injection rate records.

* * * * * (e) Identification of calendar dates and times for which data show a deviation from the operating limits in table 2 of this subpart or a deviation from other operating limits established under §60.2110(d) through (g) or §60.2115 with a description of the deviations, reasons for such deviations, and a description of corrective actions taken.Page 389 of 527
(p) * * * (4) All 1

- hour average concentrations of carbon monoxide emis sions. You must indicate which data are CEMS data during startup and shutdown.

* * * * * (8) All 1

- hour average percent oxygen concentrations. (9) All 1

- hour average PM CPMS readings or particulate matter CEMS outputs.

* * * * * (v) For operating units tha t combust non

- hazardous secondary materials that have been determined not to be solid waste pursuant to §241.3(b)(1) of this chapter, you must keep a record which documents how the secondary material meets each of the legitimacy criteria under §241.3(d)(1) . If you combust a fuel that has been processed from a discarded non

- hazardous secondary material pursuant to §241.3(b)(4) of this chapter, you must keep records as to how the operations that produced the fuel satisfies the definition of processing in §241 .2 and each of the legitimacy criteria of §241.3(d)(1) of this chapter. If the fuel received a non

- waste determination pursuant to the petition process submitted under §241.3(c) of this chapter, you must keep a record that documents how the fuel satisfies the requirements of the petition process. ForPage 390 of 527

operating units that combust non

- hazardous secondary materials as fuel per §241.4, you must keep records documenting that the material is a listed non

- waste under §241.4(a). (w) Records of the criteria used to establish that the unit qualifies as a small power production facility under section 3(17)(C) of the Federal Power Act (16 U.S.C. 796(17)(C)) and that the waste material the unit is proposed to burn is homogeneous. (x) Records of the criteria used to estab lish that the unit qualifies as a cogeneration facility under section 3(18)(B) of the Federal Power Act (16 U.S.C. 796(18)(B)) and that the waste material the unit is proposed to burn is homogeneous. 19. Section 60.2210 is amended by revising paragraph (m) int roductory text and paragraph (n) to read as follows: §60. 2210 What information must I include in my annual report?

* * * * * (m) If there were periods during which the continuous monitoring system, including the CEMS, was out of control as specified in pa ragraph (o) of this section, the annual report must contain the following information for each deviation from an emission or operating limitationPage 391 of 527

occurring for a CISWI unit for which you are using a continuous monitoring system to comply with the emission and operating limitations in this subpart.

* * * * * (n) If there were periods during which the continuous monitoring system, including the CEMS, was not out of control as specified in paragraph (o) of this section, a statement that there were not periods during which the continuous monitoring system was out of control during the reporting period.

* * * * * 20. Section 60.2235 is revised to read as follows: §60. 2235 In what form can I submit my reports? (a) Submit initial, annual, and deviation reports electro nically or in paper format, postmarked on or before the submittal due dates. (b) Submit results of performance tests and CEMS performance evaluation tests as follows. (1) Within 60 days after the date of completing each performance test as required by this subpart, you must submit the results of the performance tests required by this subpart to EPA’s WebFIRE database by using the Compliance and Emissions Data Reporting Interface (CEDRI) that is accessed through EPA’s Central Data ExchangePage 392 of 527

(CDX)( www.epa.gov/ cdx ). Performance test data must be submitted in the file format generated through use of EPA’s Electronic Reporting Tool (ERT) (see http://www.epa.gov/ttn/chief/ert/index.html ). Only data collected using test methods on the ERT website are subject to this requirement for submitting reports electronically to WebFIRE. Owners or operators who claim that some of the information being submitted for performance tests is confidential business information (CBI) must submit a complete ERT file including information claimed to be CBI on a compact disk, flash drive, or other commonly used electronic storage media to EPA. The electronic media must be clearly marked as CBI and mailed to U.S. EPA/OAPQS/CORE CBI Office, Attention: WebFIRE Administrator, MD C404

- 02, 4930 O ld Page Rd., Durham, NC 27703. The same ERT file with the CBI omitted must be submitted to EPA via CDX as described earlier in this paragraph. At the discretion of the delegated authority, you must also submit these reports, including the confidential busi ness information, to the delegated authority in the format specified by the delegated authority. For any performance test conducted using test methods that are not listed on the ERT website, the owner or operator shall submit the results of the performance test in paper submissions to the Administrator.Page 393 of 527 (2) Within 60 days after the date of completing each CEMS performance evaluation test, as defined in this subpart and required by this subpart, you must submit the relative accuracy test audit (RATA) data el ectronically into EPA’s Central Data Exchange by using CEDRI as mentioned in paragraph (b)(1) of this section. Only RATA pollutants that can be documented with the ERT (as listed on the ERT website) are subject to this requirement. For any performance eval uations with no corresponding RATA pollutants listed on the ERT website, the owner or operator shall submit the results of the performance evaluation in paper submissions to the Administrator. 21. Section 60.2265 is amended by: a. Adding in alphabetical order definitions for “30

- day rolling average,” “Annual heat input,” “Average annual heat input rate,” “CEMS data during startup and shutdown,” “Contained gaseous material,” “Continuous emission monitoring system,” “Cyclonic burn barrel,” “Dry scrubber,” “Foundr y sand thermal reclamation unit,” “Load fraction,” “Municipal solid waste or municipal type solid waste,” “Oxygen analyzer system,” “Oxygen trim system,” “Responsible official,” and “Solid waste.” b. Revising definitions for “Chemical recovery unit,” “Comm ercial and industrial solid waste incineration (CISWI)Page 394 of 527

unit,” “Continuous monitoring system (CMS),” “Energy recovery unit,” “Energy recovery unit designed to burn biomass (Biomass),” “Incinerator,” “Modification or modified CISWI unit,” “Process change,” “ Raw mill,” “Small remote incinerator,” “Solid waste incineration unit,” “Space heater,” and “Waste

- burning kiln.” c. Removing the definition for “Homogeneous wastes” and “Cyclonic barrel burner.” The revisions read as follows: §60. 2265 What definitions must I know?

* * * * * 30

- day rolling average means the arithmetic mean of the previous 720 hours of valid operating data. Valid data excludes periods when this unit is not operating. The 720 hours should be consecutive, but not necessarily continuous if o perations are intermittent.

* * * * * Annual heat input means the heat input for the 12 months preceding the compliance demonstration.

* * * * * Average annual heat input rate means annual heat input divided by the hours of operation for the 12 months
prec eding the compliance demonstration.

* * * * *Page 395 of 527 CEMS data during startup and shutdown means the following: (1) For incinerators, small remote incinerators, and energy recovery units: CEMS data collected during the first hours of a CISWI unit startup from a c old start until waste is fed to the unit and the hours of operation following the cessation of waste material being fed to the CISWI unit during a unit shutdown. For each startup event, the length of time that CEMS data may be claimed as being CEMS data du ring startup must be 48 operating hours or less. For each shutdown event, the length of time that CEMS data may be claimed as being CEMS data during shutdown must be 24 operating hours or less. (2) For waste

- burning kilns: CEMS data collected during the pe riods of kiln operation that do not include normal operations. Startup begins when the kiln’s induced fan is turned on and continues until continuous feed is introduced into the kiln, at which time the kiln is in normal operating mode. Shutdown begins when feed to the kiln is halted. Chemical recovery unit means combustion units burning materials to recover chemical constituents or to produce chemical compounds where there is an existing commercial market for such recovered chemical constituents orPage 396 of 527

compound s. The following seven types of units are considered chemical recovery units: (1) Units burning only pulping liquors (i.e., black liquor) that are reclaimed in a pulping liquor recovery process and reused in the pulping process. (2) Units burning only spen t sulfuric acid used to produce virgin sulfuric acid. (3) Units burning only wood or coal feedstock for the production of charcoal. (4) Units burning only manufacturing byproduct streams/residue containing catalyst metals that are reclaimed and reused as c atalysts or used to produce commercial grade catalysts. (5) Units burning only coke to produce purified carbon monoxide that is used as an intermediate in the production of other chemical compounds. (6) Units burning only hydrocarbon liquids or solids to p roduce hydrogen, carbon monoxide, synthesis gas, or other gases for use in other manufacturing processes. (7) Units burning only photographic film to recover silver.

* * * * * Commercial and industrial solid waste incineration (CISWI) unit means any distin ct operating unit of anyPage 397 of 527

commercial or industrial facility that combusts, or has combusted in the preceding 6 months, any solid waste as that term is defined in 40 CFR part 241. If the operating unit burns materials other than traditional fuels as defined in §241.2 that have been discarded, and you do not keep and produce records as required by §60.2175(v), the operating unit is a CISWI unit. While not all CISWI units will include all of the following components, a CISWI unit includes, but is not limited to , the solid waste feed system, grate system, flue gas system, waste heat recovery equipment, if any, and bottom ash system. The CISWI unit does not include air pollution control equipment or the stack. The CISWI unit boundary starts at the solid waste hopp er (if applicable) and extends through two areas: The combustion unit flue gas system, which ends immediately after the last combustion chamber or after the waste heat recovery equipment, if any; and the combustion unit bottom ash system, which ends at the truck loading station or similar equipment that transfers the ash to final disposal. The CISWI unit includes all ash handling systems connected to the bottom ash handling system. Contained gaseous material means gases that are in a container when that co ntainer is combusted.Page 398 of 527 Continuous emission monitoring system (CEMS) means the total equipment that may be required to meet the data acquisition and availability requirements of this subpart, used to sample, condition (if applicable), analyze, and provide a record of emissions. Continuous monitoring system (CMS) means the total equipment, required under the emission monitoring sections in applicable subparts, used to sample and condition (if applicable), to analyze, and to provide a permanent record of emissi ons or process parameters. A particulate matter continuous parameter monitoring system (PM CPMS) is a type of CMS. Cyclonic burn barrel means a combustion device for waste materials that is attached to a 55 gallon, open

- head drum. The device consists of a lid, which fits onto and encloses the drum, and a blower that forces combustion air into the drum in a cyclonic manner to enhance the mixing of waste material and air. A cyclonic burn barrel is not an incinerator, a waste

- burning kiln, an energy recovery u nit or a small, remote incinerator under this subpart.

* * * * * Dry scrubber means an add

- on air pollution control system that injects dry alkaline sorbent (dry injection) or sprays an alkaline sorbent (spray dryer) to react with andPage 399 of 527

neutralize acid gas i n the exhaust stream forming a dry powder material. Sorbent injection systems in fluidized bed boilers and process heaters are included in this definition. A dry scrubber is a dry control system.

* * * * * Energy recovery unit means a combustion unit combu sting solid waste (as that term is defined by the Administrator in 40 CFR 241) for energy recovery. Energy recovery units include units that would be considered boilers and process heaters if they did not combust solid
waste. Energy recovery unit designed to burn biomass (Biomass) means an energy recovery unit that burns solid waste, biomass, and non

- coal solid materials but less than 10 percent coal, on a heat input basis on an annual average, either alone or in combination with liquid waste, liquid fuel or gaseous fuels.

* * * * * Foundry sand thermal reclamation unit means a type of part reclamation unit that removes coatings that are on foundry sand. A foundry sand thermal reclamation unit is not an incinerator, a waste

- burning kiln, an energy
recovery unit or a small, remote incinerator under this subpart.Page 400 of 527

Incinerator means any furnace used in the process of combusting solid waste (as that term is defined by the Administrator in 40 CFR 241) for the purpose of reducing the volume of the waste by removing combustible matter. Incinerator designs include single chamber and two

- chamber.

* * * * * Load fraction means the actual heat input of an energy recovery unit divided by heat input during the performance test that established the minimum sorbent injection rate or minimum activated carbon injection rate, expressed as a fraction (e.g., for 50 percent load the load fraction is 0.5).

* * * * * Modification or modified CISWI unit means a CISWI unit that has been changed later than [ THE DATE SIX MONTHS AFTER
PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] and that meets one of two criteria: (1) The cumulati ve cost of the changes over the life of the unit exceeds 50 percent of the original cost of building and installing the CISWI unit (not including the cost of land) updated to current costs (current dollars). To determine what systems are within the boundar y of the CISWI unit used to calculate these costs, see the definition of CISWI unit.Page 401 of 527 (2) Any physical change in the CISWI unit or change in the method of operating it that increases the amount of any air pollutant emitted for which section 129 or section 1 11 of the Clean Air Act has established standards. Municipal solid waste or municipal

- type solid waste means household, commercial/retail, or institutional waste. Household waste includes material discarded by residential dwellings, hotels, motels, and oth er similar permanent or temporary housing. Commercial/retail waste includes material discarded by stores, offices, restaurants, warehouses, nonmanufacturing activities at industrial facilities, and other similar establishments or facilities. Institutional waste includes materials discarded by schools, by hospitals (nonmedical), by nonmanufacturing activities at prisons and government facilities, and other similar establishments or facilities. Household, commercial/retail, and institutional waste does includ e yard waste and refuse

- derived fuel. Household, commercial/retail, and institutional waste does not include used oil; sewage sludge; wood pallets; construction, renovation, and demolition wastes (which include railroad ties and telephone poles); clean woo d; industrial process or manufacturing wastes; medical waste; or motor vehicles (including motor vehicle parts or vehicle fluff).Page 402 of 527

* * * * * Oxygen analyzer system means all equipment required to determine the oxygen content of a gas stream and used to moni tor oxygen in the boiler or process heater flue gas, boiler or process heater, firebox, or other appropriate location. This definition includes oxygen trim systems and certified oxygen CEMS. The source owner or operator is responsible to install, calibrate , maintain, and operate the oxygen analyzer system in accordance with the manufacturer’s recommendations. Oxygen trim system means a system of monitors that is used to maintain excess air at the desired level in a combustion device. A typical system consi sts of a flue gas oxygen and/or carbon monoxide monitor that automatically provides a feedback signal to the combustion air controller.

* * * * * Process change means any of the following physical or operational changes: (1) A physical change (maintenance activities excluded) to the CISWI unit which may increase the emission rate of any air pollutant to which a standard applies;Page 403 of 527 (2) An operational change to the CISWI unit where a new type of non

- hazardous secondary material is being combusted; (3) A physica l change (maintenance activities excluded) to the air pollution control devices used to comply with the emission limits for the CISWI unit (e.g., replacing an electrostatic precipitator with a fabric filter); (4) An operational change to the air pollution control devices used to comply with the emission limits for the affected CISWI unit (e.g., change in the sorbent injection rate used for activated carbon injection).

* * * * * Raw mill means a ball or tube mill, vertical roller mill or other size reduction equipment, that is not part of an in

- line kiln/raw mill, used to grind feed to the appropriate size. Moisture may be added or removed from the feed during the grinding operation. If the raw mill is used to remove moisture from feed materials, it is also, by definition, a raw material dryer. The raw mill also includes the air separator associated with the raw mill.

* * * * * Responsible official means one of the following:Page 404 of 527 (1) For a corporation: a president, secretary, treasurer, or vice

- president of the co rporation in charge of a principal business function, or any other person who performs similar policy or decision

- making functions for the corporation, or a duly authorized representative of such person if the representative is responsible for the overall operation of one or more manufacturing, production, or operating facilities applying for or subject to a permit and either: (i) The facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million (in second quarter 1980 dollars); or (ii) The delegation of authority to such representatives is approved in advance by the permitting authority; (2) For a partnership or sole proprietorship: a general partner or the proprietor, respectively; (3) For a municipality, State, F ederal, or other public agency: Either a principal executive officer or ranking elected official. For the purposes of this part, a principal executive officer of a Federal agency includes the chief executive officer having responsibility for the overall op erations of a principal geographic unit of the agency (e.g., a Regional Administrator of EPA); orPage 405 of 527
(4) For affected facilities: (i) The designated representative in so far as actions, standards, requirements, or prohibitions under Title IV of the Clean Air Act or the regulations promulgated thereunder are concerned; or (ii) The designated representative for any other purposes under part 60.

* * * * * Small, remote incinerator means an incinerator that combusts solid waste (as that term is defined by the Admi nistrator in 40 CFR 241) and combusts 3 tons per day or less solid waste and is more than 25 miles driving distance to the nearest municipal solid waste landfill. Soil treatment unit means a unit that thermally treats petroleum

– contaminated soils for the s ole purpose of site remediation. A soil treatment unit may be direct

- fired or indirect fired. A soil treatment unit is not an incinerator, a waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart. Solid waste means th e term solid waste as defined in 40 CFR 241.2. Solid waste incineration unit means a distinct operating unit of any facility which combusts any solid waste (as that term is defined by the Administrator in 40Page 406 of 527

CFR part 241) material from commercial or indust rial establishments or the general public (including single and multiple residences, hotels and motels). Such term does not include incinerators or other units required to have a permit under section 3005 of the Solid Waste Disposal Act. The term "solid wa ste incineration unit" does not include: (1) Materials recovery facilities (including primary or secondary smelters) which combust waste for the primary purpose of recovering metals; (2) Qualifying small power production facilities, as defined in section 3 (17)(C) of the Federal Power Act (16 U.S.C. 769(17)(C)), or qualifying cogeneration facilities, as defined in section 3(18)(B) of the Federal Power Act (16 U.S.C. 796(18)(B)), which burn homogeneous waste (such as units which burn tires or used oil, but no t including refuse

- derived fuel) for the production of electric energy or in the case of qualifying cogeneration facilities which burn homogeneous waste for the production of electric energy and steam or forms of useful energy (such as heat) which are used for industrial, commercial, heating or cooling purposes; or (3) Air curtain incinerators provided that such incinerators only burn wood wastes, yard wastes, and clean lumber and that such air curtain incinerators comply with opacity limitations to be
esta blished by the Administrator by rule.Page 407 of 527
Space heater means a unit that meets the requirements of 40 CFR 279.23. A space heater is not an incinerator, a
waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart.

* * * * *
W aste

- burning kiln means a kiln that is heated, in whole or in part, by combusting solid waste (as that term is defined by the Administrator in 40 CFR part 241). Secondary materials used in Portland cement kilns shall not be deemed to be combusted unless th ey are introduced into the flame zone in the hot end of the kiln or mixed with the precalciner fuel.

* * * * * 22. Table 1 to subpart CCCC of part 60 is amended by: a. Revising the table heading. b. Revising the entry for “Carbon monoxide”. c. Revising the ent ry for “Dioxin/Furan (toxic equivalency basis)”. d. Revising the entry for “Hydrogen Chloride”. e. Revising the entry for “Nitrogen Oxides”. f. Revising the entry for “Sulfur Dioxide”. The revisions read as follows: Table 1 to Subpart CCCC of Part 60 — Emiss ion Limitations for CISWI Units for Which Construction Is Commenced After November 30, 1999, but no later than June 4, 2010, or forPage 408 of 527

Which Modification or Reconstruction Is Commenced on or After June 1, 2001, but no later than [ INSERT THE DATE 6 MONTHS AFTE R PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ].

For the air pollutant You must

meet this emission limitation a Using this averaging time And determining compliance using this method

* * * * * * *

Carbon monoxide 157 parts

per million by dry volume 3

- run average (1 hour

minimum sample time per run) Performance test (Method 10 at 40 CFR part 60, appendix A

4). Dioxin/Furan (toxic equivalency basis) 0.41

nanograms per dry standard cubic meter 3

- run average (collect a

minimum volume of 4 dry standard cubic meters per run) Performance test (Method 23 of appendix A

- 7 of this part). Hydrogen chloride 62 parts

per million by dry volume 3

- run average (For Method

26, collect a minimum volume of 120 liters per run. For Method 26A, collect a minimum volume of 1 dry standard cubic meter per run) Performance test (Method 26 or 26A at 40 CFR part 60, appendix A

8).

* * * * * * * Nitrogen Oxides 388 parts

per million by dry volume 3

- run average (for Method

7E, 1 hour minimum sample time per run) Performance test (Method 7 or 7E at 40 CFR part 60, appendix A

4).Page 409 of 527

For the air pollutant You must

meet this emission limitation a Using this averaging time And determining compliance using this method

* * * * * * *

Sulfur Dioxide 20 parts

per million by dry volume 3

- run average (For Method

6, collect a minimum volume of 20 liters per run. For Method 6C, collect sample for a minimum duration of 1 hour per run) Performance test (Method 6 or 6C at 40 CFR part 60, appendix A

4).

* * * * * 23. Table 2 to subpart CCCC of part 60 is amended by revising footnote a to read as follows: Table 2 to Subpart CCCC of Part 60 — Operating Limits for Wet Scrubbers
* * * * *

a Calculated each hour as the average of the previous 3 operating hours. 24. Table 4 to subpart CCCC of part 60 is amended by revising the entries for “Initial test report” and “Annual Report” to read as follows: Table 4 to Subpart CCCC of Part 60 — Summary of Reporting Requirements a Report Due date Contents Reference

* * * * * * *Page 410 of 527

Report Due date Contents Reference Initial test report No later than 60

days following the initial performance test Complete test report for the initial performance test The values for the site

specific operating limits Installation of bag leak detection system for fabric filter §60.2200

* * * * * * *

Annual report No later than 12

months following the submission of the initial test report. Subsequent reports are to be submitted no more than 12 months following the previous report Name and address Statement and signature by responsible official Date of report Values for the operating limits Highest recorded 3

- hour average and the lowest 3

- hour average, as applicable, for each operating pa rameter recorded for the calendar year being reported If a performance test was conducted during the reporting period, the results of the test If a performance test was not conducted during the reporting period, a statement that the requirements of §60.215 5(a) were met Documentation of periods when all qualified CISWI unit operators were unavailable for more than 8 hours but less than 2 weeks If you are conducting performance tests once every 3 years consistent with §§60.2205 and 60.2210Page 411 of 527

Report Due date Contents Reference §60.2155(a), the date of the last 2 perfo rmance tests, a comparison of the emission level you achieved in the last 2 performance tests to the 75 percent emission limit threshold required in §60.2155(a) and a statement as to whether there have been any operational changes since the last performanc e test that could increase emissions.

* * * * * * *

25. Table 5 to subpart CCCC of part 60 is amended by: a. Revising the table heading. b. Revising the entry for “Carbon Monoxide”. c. Revising the entry for “Dioxin/furan (Total Mass Basis)”. d. Revising the entry for “Hydrogen chloride”. e. Revising the entry for “Lead”. f. Revising the entry for “Mercury”. g. Revising the entry for “Nitrogen Oxides”. h. Revising the entry for “Sulfur dioxide”. i. Adding footnote c. The revisions read as follows:Page 412 of 527

Table 5 to Subpart CCCC of Part 60 — Emission Limitations for Incinerators That Commenced Construction After June 4, 2010, Or That Commenced Reconstruction or Modification After [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN TH E FEDERAL REGISTER ]

For the air pollutant You must meet

this emission limitation a Using this

averaging time And determining

compliance using this method

* * * * * * *

Carbon monoxide 17 parts per

million by dry volume 3

- run average (1

hour minimum sample time per run) Performance test (Method 10 at 40 CFR part 60, appendix A

- 4). Dioxin/furan (Total Mass Basis) 0.58 nanograms

per dry standard cubic meter c 3

- run average

(collect a minimum volume of 4 dry standard cubic meters per run) Performance test (Method 23 at 40 CFR part 60, appendix A

- 7).

* * * * * * * Hydrogen chloride 0.091 parts

per million by dry volume 3

- run average (For

Method 26, collect a minimum volume of 360 liters per run. For Method 26A, collect a minimum volume of 3 dry standard cubic meters per run) Performance test (Method 26 or 26A at 40 CFR part 60, appendix A

- 8).

Lead 0.015

milligrams per dry standard cubic meter c 3

- run average

(collect a minimum volume of 4 dry standard cubic meters per run) Performance test (Method 29 of appendix A

- 8 at 40 CFR part 60). Use ICPMS for the analytical finish. Mercury 0.00084

milligrams per dry standard cubic meter c 3

- run average

(collect enough volume to meet a detection limit data quality objective of 0.03 ug/dry standard cubic meter) Performance test ( Method 29 or 30B at 40 CFR part 60, appendix A

- 8) or ASTM D6784

- 02(Reapproved 2008) b

.Page 413 of 527

For the air pollutant You must meet

this emission limitation a Using this

averaging time And determining

compliance using this method Nitrogen Oxides 23 parts per

million dry volume 3

- run average (for

Method 7E,1 hour minimum sample time per run) Performance test (Method 7 or 7E at 40 CFR part 60, appendix A

- 4).

* * * * * * *

Sulfur dioxide 11 parts per

million dry volume 3

- run average (1

hour minimum sample time per run) Performance test (Method 6 or 6C at 40 CFR part 60, appendix A

- 4.

* * * * * * *

* * * * *

c If you are conducting stack tests to demonstrate compliance and your performance tests for this pollutant for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing according to §60.2155 if all of the other provision of §60.2155 are met. For all other pollutants that do not contain a footnote “c”, your performance tests for this pollutant for at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing.

26. Table 6 to subpart CCCC of part 60 is amended by: a. Revising the table heading. b. Revising the entry for “Cadmium”. c. Revising the entry for “Carbon monoxide”. d. Revising the entry for “Dioxins/furans (Total Mass Basis)”. e. Revising the entry for “Dioxins/furans (toxic equivalency basis)”.Page 414 of 527 f. Revising the entry for “Hydrogen chloride”. g. Revising the entry for “Lead”. h. Revising the entry for “Mercury”. i. Revising the entry for “Oxides of nitrogen”. j. Revising the entry for “Parti culate matter (filterable)”. k. Revising the entry for “Sulfur dioxide”. l. Adding footnote c. The revisions read as follows: Table 6 to Subpart CCCC of Part 60 — Emission Limitations for Energy Recovery Units That Commenced Construction After June 4, 2010, Or That Commenced Reconstruction or Modification After [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] You must meet this emission limitation a

For the air pollutant Liquid/Gas Solids Using this averaging time And determining

compliance using this method Cadmium 0.023

milligrams per dry standard cubic meter Biomass

-

0.0014 milligrams per dry standard cubic meter c 3

- run

average (collect a minimum volume of 4 dry standard cubic meters per run) Performance

test (Meth od 29 at 40 CFR part 60, appendix A

8). Use ICPMS for the analytical finish. Coal

- 0.0095 milligrams per dry standard cubic meter Carbon monoxide 35 parts per

million dry volume Biomass

–

240 parts per million dry volume 3

- run

average (1 hour minimum Performance

test (Method 10 at 40 CFR part 60, appendix A

-Page 415 of 527

You must meet this emission limitation a

For the air pollutant Liquid/Gas Solids Using this averaging time And determining

compliance using this method Coal

– 95 parts per million dry volume sample

time per run) 4).

Dioxin/furans (Total Mass Basis) No Total

Mass Basis limit, must meet the toxic equivalency basis limit below Biomass

-

0.52 nanograms per dry standard cubic meter c 3

- run

average (collect a minimum volume of 4 dry standard cubic meters) Performance

test (Method 23 at 40 CFR part 60, appendix A

7).

Coal

– 5.1 nanograms per dry standard cubic meter c Dioxins/ furans (toxic equivalency basis) 0.093

nanograms per dry standard cubic meter c Biomass

-

0.076 nanograms per dry standard cubic meter c 3

- run

average (collect a minimum volume of 4 dry standard cubic meters per run) Performance

test (Method 23 of appendix A

- 7 of this part).

Coal

- 0.075 nanograms per dry standard cubic meter c Hydrogen chloride 14 parts per

million dry volume Biomass

-

0.20 parts per million dry volume 3

- run

average (For Method 26, Performance

test (Method 26 or 26A at 40 CFR part 60,Page 416 of 527

You must meet this emission limitation a

For the air pollutant Liquid/Gas Solids Using this averaging time And determining

compliance using this method Coal

– 13 parts per million dry volume collect a

minimum volume of 360 liters per run. For Method 26A, collect a minimum volume of 3 dry standard cubic meters per run) appendix A

- 8).

Lead 0.096

milligrams per dry standard cubic meter Biomass

-

0.014 milligrams per dry standard cubic meter c 3

- run

average (collect a minimum volume of 4 dry standard cubic meters per run) Performance

test (Method 29 at 40 CFR part 60, appendix A

8). Use ICPMS for the analytical finish. Coal

- 0.14 milligrams per dry standard cubic meter Mercury 0.00056

milligrams per dry standard cubic meter c Biomass

-

0.0022 milligrams per dry standard cubic meter 3

- run

average (collect enough volume to meet an in

- stack detection limit data quality objective of 0.03 ug/dscm) Performance

test (Method 29 or 30B at 40 CFR part 60, appendix A

- 8) or ASTM D6784

- 02 (Reapproved 2008)b. Coal

- 0.016 milligrams per dry standard cubic meter

Oxides of nitrogen 76 parts per

million dry volume Biomass

–

290 parts per million dry volume 3

- run

average (for Method 7E, Performance

test (Method 7 or 7E at 40 CFR part 60,Page 417 of 527

You must meet this emission limitation a

For the air pollutant Liquid/Gas Solids Using this averaging time And determining

compliance using this method Coal

– 340 parts per million dry volume 1 hour

minimum sample time per run) appendix A

- 4).

Particulate matter (filterable) 110

milligrams per dry standard cubic meter Biomass

-

5.1 milligrams per dry standard cubic meter 3

- run

average (collect a minimum volume of 1 dry standard cubic meter per run) Performance

test (Method 5 or 29 at 40 CFR part 60, appendix A

- 3 or appendix A

- 8) if the unit has an a nnual average heat input rate less than 250 MMBtu/hr; or PM CPMS (as specified in §60.2145(x)) if the unit has an annual average heat input rate equal to or greater than 250 MMBtu/hr. Coal

- 160 milligrams per dry standard cubic meter

Sulfur dioxide 720 parts

per million dry volume Biomass

–

7.3 parts per million dry volume 3

- run

average (for Method 6, collect a minimum of 60 liters, for Method 6C,1 hour minimum sample time per run) Performance

test (Method 6 or 6C at 40 CFR part 60, appendix A

- 4). Coal

– 650 parts per million dry volume

* * * * *Page 418 of 527

c If you are conducting stack tests to demonstrate compliance and your performance tests for this pollutant for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing according to §60.2155 if all of the other provision of §60.2155 are met. For all other pollutants that do not contain a footnote “c”, your performance tests for this pollutant for at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing.

27. Table 7 to Subpart CCCC of part 60 is revised to read as follows: Table 7 to Subpart CCCC of Part 60 — Emission Limitations for Waste - burning Kilns That Commenced Construction After June 4, 2010, or Reconstruction or Modification After [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]

For the air pollutant You must meet

this emission limitation a Using this

averaging time And determining

compliance using this method Cadmium 0.0014

milligrams per dry standard cubic meter b 3

- run average

(collect a minimum volume of 4 dry standard cubic meters per run) Performance test

(Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish.

Carbon monoxide 90 (long kilns)

/ 190 (preheater / precalciner) parts per million dry volume 3

- run average

(1 hour minimum sample time per run) Performance test

(Method 10 at 40 CFR part 60, appendix A

- 4).

Dioxins/furans (total mass basis) 0.51 nanograms

per dry standard cubic meter b 3

- run average

(collec t a minimum volume of 4 dry standard cubic meters per run) Performance test

(Method 23 at 40 CFR part 60, appendix A

- 7).Page 419 of 527

For the air pollutant You must meet

this emission limitation a Using this

averaging time And determining

compliance using this method Dioxins/furans (toxic equivalency basis) 0.075 nanograms

per dry standard cubic meter b 3

- run average

(collect a minimum volume of 4 dr y standard cubic meters) Performance test

(Method 23 at 40 CFR part 60, appendix A

- 7).

Hydrogen chloride 3.0 parts per

million dry volume b 3

- run average

(1 hour minimum sample time per run) or 30

- day rolling average if HCl CEMS are used Performance test

(Method 321 at 40 CFR part 63, appendix A) or HCl CEMS if a wet scrubber or dry scrubber is not used.

Lead 0.014

milligrams per dry standard cubic meter b 3

- run average

(collect a minimum volume of 4 dry standard cubic meters) Performance test

(Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish. Mercury 0.0037

milligrams per dry standard cubic meter 30

- day

rolling average Mercury CEMS or

sorbent trap monitoring system (performance specification 12A or 12B, respectively, of appendix B of this part.) Oxides of nitrogen 200 parts per

million dry volume 30

- day

rolling average NOx CEMS

(performance specification 2 of appendix B and procedure 1 of appendix F of this part). Particulate matter (filterable) 2.2 milligrams

per dry standard cubic meter 30

- day

rolling average PM CPMS (as

specified in §60.2145(x)).Page 420 of 527

For the air pollutant You must meet

this emission limitation a Using this

averaging time And determining

compliance using this method Sulfur dioxide 28 parts per

million dry volume 30

- day

rolling average Sulfur dioxide CEMS

(performance specification 2 of appendix B and procedure 1 of appendix F of this part). * * * * *

b If you are conducting stack tests to demonstrate compliance and your performance tests for this pollutant for at least 2 consecutive y ears show that your emissions are at or below this limit, you can skip testing according to §60.2155 if all of the other provision of §60.2155 are met. For all other pollutants that do not contain a footnote “b”, your performance tests for this pollutant f or at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing.

28. Table 8 to Subpart CCCC of part 60 is revised to read as follows: Table 8 to Subpart CCCC of Part 60 — Emission Limitation s for Small, Remote Incinerators That Commenced Construction After June 4, 2010, Or That Commenced Reconstruction or Modification After [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]

For the air pollutant You must me et

this emission limitation a Using this

averaging time And determining compliance using this method Cadmium 0.67

milligrams per dry standard cubic meter 3

- run average

(collect a minimum volume of 1 dry standard cubic meters per run) Performance test (Method 29 at 40 CFR part 60, appendix A

- 8).Page 421 of 527

For the air pollutant You must me et

this emission limitation a Using this

averaging time And determining compliance using this method Carbon monoxide 13 parts per

million dry volume 3

- run average (1

hour minimum sample time per run) Performance test (Method 10 at 40 CFR part 60, appendix A

4). Dioxins/furans (total mass basis) 1,800

nanograms per dry standard cubic meter b 3

- run average

(collect a minimum volume of 1 dry standard cubic meters per run) Performance test (Method 23 at 40 CFR part 60, appendix A

- 7).
Dioxins/furans (toxic equivalency basis) 31 nanograms

per dr y standard cubic meter b 3

- run average

(collect a minimum volume of 1 dry standard cubic meters) Performance test (Method 23 at 40 CFR part 60, appendix A

- 7). Fugitive ash Visible

emissions for no more than 5 percent of the hourly observation period Three 1

- hour

observation periods Visible emissions test (Method 22 at 40 CFR part 60, appendix A

- 7).

Hydrogen chloride 200 parts per

million by dry volume 3

- run average (For

Method 26, collect a minimum volume of 60 liters per run. For Method 26A, collect a min imum volume of 1 dry standard cubic meter per run) Performance test (Method 26 or 26A at 40 CFR part 60, appendix A

- 8).

Lead 2.0

milligrams per dry standard cubic meter 3

- run average

(collect a minimum volume of 1 dry standard cubic meters) Performance te st (Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish.Page 422 of 527

For the air pollutant You must me et

this emission limitation a Using this

averaging time And determining compliance using this method Mercury 0.0035

milligrams per dry standard cubic meter 3

- run average (For

Method 29 and ASTM D6784

- 02 (Reapproved 2008) b , collect a minimum volume of 2 dry standard cubic meters per run. For Method 30B, collect a minimum volume as specified in Method 30B at 40 CFR part 60, appendix A). Performance test (Method 29 or 30B at 40 CFR part 60, appendix A

- 8) or ASTM D6784

- 02(Reapproved 2008) b

.

Oxides of nitrogen 170 parts per

million dry volume 3

- run average (for

Method 7E, 1 hour minimum sample time per run) Performance test (Method 7 or 7E at 40 CFR part 60, appendix A

4). Particulate matter (filterable) 270

milligrams per dry standard cubic meter 3

- run average

(collect a m inimum volume of 1 dry standard cubic meters) Performance test (Method 5 or 29 at 40 CFR part 60, appendix A

- 3 or appendix A

8). Sulfur dioxide 1.2 parts per

million dry volume 3

- run average (1

hour minimum sample time per run) Performance test (Method 6 or 6c at 40 CFR part 60, appendix A

4).

* * * * * * *

* * * * * Subpart DDDD — [Amended] 29. Section 60.2505 is amended by: a. Revising paragraph (a). b. Revising paragraph (c). c. Revising paragraph (d).Page 423 of 527

The revisions read as follows: §60. 2505 Am I affected by this subpart? (a) If you are the Administrator of an air quality program in a state or United States protectorate with one or more existing CISWI units that meet the criteria in paragraphs (b) through (d) of this section, you must submit a state plan t o U.S. Environmental Protection Agency (EPA) that implements the emission guidelines contained in this subpart.

* * * * * (c) You must submit a state plan that meets the requirements of this subpart and contains the more stringent emission limit for the re spective pollutant in table 6 of this subpart or table 1 of subpart CCCC of this part to EPA by [TRACK THE DATE 1 YEAR AFTER PUBLICATION OF
THE FINAL RULE IN THE FEDERAL REGISTER ] for incinerators that commenced construction after November 30, 1999, but no later than June 4, 2010, or commenced modification or reconstruction after June 1, 2001 but no later than [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF THE FINAL RULE IN
THE FEDERAL REGISTER ]. (d) You must submit a state plan to EPA that meets the requir ements of this subpart and contains the emission limits in tables 7 through 9 of this subpart by [ INSERT THEPage 424 of 527

DATE 1 YEAR AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] for CISWI units other than incinerator units that commenced construction o n or before June 4, 2010, or commenced modification or reconstruction after June 4, 2010 but no later than [ INSERT THE DATE 6 MONTHS
AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]. 30. Section 60.2525 is amended by revising paragraph (b) to read as follows: §60. 2525 What if my state plan is not approvable?

* * * * * (b) If you do not submit an approvable state plan (or a negative declaration letter) to EPA that meets the requirements of this subpart and contains the emission limits in tables 6 thr ough 9 of this subpart for CISWI units that commenced construction on or before June 4, 2010, then EPA will develop a federal plan according to §60.27 to implement the emission guidelines contained in this subpart. Owners and operators of CISWI units not

c overed by an approved state plan must comply with the federal plan. The federal plan is an interim action and will be automatically withdrawn when your state plan is approved.

* * * * *Page 425 of 527

31. Section 60.2535 is amended by: a. Revising paragraph (a) introductory text. b. Revising paragraph (b) introductory text. c. Revising paragraph (b)(1). The revisions read as follows: §60. 2535 What compliance schedule must I include in my state plan? (a) For CISWI units in the incinerator subcategory that commenced constructio n on or before November 30, 1999, your state plan must include compliance schedules that require CISWI units to achieve final compliance as expeditiously as practicable after approval of the state plan but not later than the earlier of the two dates specif ied in paragraphs (a)(1) and (2) of this section.

* * * * * (b) For CISWI units in the incinerator subcategory that commenced construction after November 30, 1999, but on or before June 4, 2010, and for CISWI units in the small remote incinerator, energy r ecovery unit, and waste

- burning kiln subcategories that commenced construction before June 4, 2010, your state plan must include compliance schedules that require CISWI units to achieve final compliance as expeditiously as practicable after approval of the statePage 426 of 527

plan but not later than the earlier of the two dates specified in paragraphs (b)(1) and (b)(2) of this section. (1) [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE
FINAL RULE IN THE FEDERAL REGISTER ].

* * * * * 32. Section 60.2545 is amended by revising paragraph (c) to read as follows: §60. 2545 Does this subpart directly affect CISWI unit owners and operators in my state?

* * * * * (c) If you do not submit an approvable plan to implement and enforce the guidelines contained in this subpart by [ I NSERT THE DATE 1 YEAR AFTER PUBLICATION OF THE
FINAL RULE IN THE FEDERAL REGISTER ] for CISWI units that commenced construction on or before June 4, 2010, EPA will implement and enforce a federal plan, as provided in §60.2525, to ensure that each unit withi n your state that commenced construction on or before June 4, 2010, reaches compliance with all the provisions of this subpart by [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL
RULE IN THE FEDERAL REGISTER ]. 33. Section 60.2550 is amended by revising paragraph (a)(1) to read as follows: §60.2550 What CISWI units must I address in my state plan?Page 427 of 527
(a) * * * (1) CISWI units in your state that commenced construction on or before June 4, 2010, or commenced modificatio n or reconstruction after June 4, 2010 but no later than [ INSERT THE DATE 6 MONTHS AFTER PUBLICATION OF
THE FINAL RULE IN THE FEDERAL REGISTER ].

* * * * * 34. Section 60.2555 is amended by: a. Revising paragraph (c). b. Revising paragraph (e)(3). c. Adding pa ragraph (e)(4). d. Revising paragraph (f)(3). e. Adding paragraph (f)(4). f. Revising paragraph (n). g. Adding paragraph (o). The revisions read as follows: §60. 2555 What combustion units are exempt from my state plan?

* * * * * (c) Municipal waste combus tion units
. Incineration units that are subject to subpart Ea of this part (Standards of Performance for Municipal Waste Combustors); subpart Eb of this part (Standards of Performance for Large Municipal Waste Combustors); subpart Cb of this partPage 428 of 527

(Emission Guidelines and Compliance Time for Large Municipal Combustors); AAAA of this part (Standards of Performance for Small Municipal Waste Combustion Units); or subpart BBBB of this part (Emission Guidelines for Small Municipal Waste Combustion Units).

* * * * * (e) * * * (3) You submit documentation to the Administrator notifying the Agency that the qualifying small power production facility is combusting homogenous waste. (4) You maintain the records specified in §60.2740(v). (f) * * * (3) You submit documen tation to the Administrator notifying the Agency that the qualifying cogeneration facility is combusting homogenous waste. (4) You maintain the records specified in §60.2740(w).

* * * * * ( n) Sewage sludge incineration units . Incineration units combusting sewage sludge for the purpose of reducing the volume of the sewage sludge by removing combustible matter that are subject to subpart LLLL of this part (Standards of Performance for Sewage Sludge Incineration Units) or subpart MMMM of this part (Emission Gu idelines for Sewage Sludge Incineration Units).Page 429 of 5 27
(o) Other solid waste incineration units . Incineration units that are subject to subpart EEEE of this part (Standards of Performance for Other Solid Waste Incineration Units) or subpart FFFF of this part (Em ission Guidelines and Compliance Times for Other Solid Waste Incineration Units). 35. Section 60.2675 is amended by: a. Revising paragraph (a)(2). b. Revising paragraph (e). c. Revising paragraph (f). d. Redesignating paragraph (g) as paragraph (h).

e. Revising paragraph (g). f. Adding paragraph (i). The revisions read as follows: §60. 2675 What operating limits must I meet and by when? (a) * * * (2) Minimum pressure drop across the wet particulate matter scrubber, which is calculated as the lowest 1

- ho ur average pressure drop across the wet scrubber measured during the most recent performance test demonstrating compliance with the particulate matter emission limitations; or minimum amperage to the wet scrubber, which is calculated as the lowest 1

- hour a verage amperage to the wet scrubber measured during the most recent performancePage 430 of 527

test demonstrating compliance with the particulate matter emission limitations.

* * * * * (e) If you use activated carbon sorbent injection to comply with the emission limitati ons, you must measure the sorbent flow rate during the performance testing. The operating limit for the carbon sorbent injection is calculated as the lowest 1

- hour average sorbent flow rate measured during the most recent performance test demonstrating com pliance with the mercury emission limitations. For energy recovery units, when your unit operates at lower loads, multiply your sorbent injection rate by the load fraction, as defined in this subpart, to determine the required injection rate (e.g., for 50 percent load, multiply the injection rate operating limit by 0.5) (f) If you use selective noncatalytic reduction to comply with the emission limitations, you must measure the charge rate, the secondary chamber temperature (if applicable to your CISWI unit ), and the reagent flow rate during the nitrogen oxides performance testing. The operating limits for the selective noncatalytic reduction are calculated as the highest 1

- hour average charge rate, lowest secondary chamber temperature, and lowest reagent
fl ow rate measured during the most recent performance testPage 431 of 527

demonstrating compliance with the nitrogen oxides emission limitations. (g) If you use a dry scrubber to comply with the emission limitations, you must measure the injection rate of each sorbent duri ng the performance testing. The operating limit for the injection rate of each sorbent is calculated as the lowest 1

- hour average injection rate of each sorbent measured during the most recent performance test demonstrating compliance with the hydrogen chl oride emission limitations. For energy recovery units, when your unit operates at lower loads, multiply your sorbent injection rate by the load fraction, as defined in this subpart, to determine the required injection rate (e.g., for 50 percent load, multi ply the injection rate operating limit by 0.5). (h) If you do not use a wet scrubber, electrostatic precipitator, or fabric filter to comply with the emission limitations, and if you do not determine compliance with your particulate matter emission limitat ion with a particulate matter CEMS, you must maintain opacity to less than or equal to ten percent opacity (1

- hour block average). (i) If you use a PM CPMS to demonstrate compliance, you must establish your PM CPMS operating limit andPage 432 of 527

determine compliance with it according to paragraphs (i)(1) through (i)(5) of this section. (1) During the initial performance test or any such subsequent performance test that demonstrates compliance with the PM limit, record all hourly average output values (milliamps) from the PM CPMS for the periods corresponding to the test runs (e.g., three 1

- hour average PM CPMS output values for three 1

- hour test runs).

a. Your PM CPMS must provide a 4

- 20 milliamp output and the establishment of its relationship to manual reference method measurements must be determined in units of milliamps. b. Your PM CPMS operating range must be capable of reading PM concentrations from zero to a level equivalent to at least two times your allowable emission limit. If your PM CPMS is an auto

- ranging instru ment capable of multiple scales, the primary range of the instrument must be capable of reading PM concentration from zero to a level equivalent to two times your allowable emission limit.

c. During the initial performance test or any such subsequent performa nce test that demonstrates compliance with the PM limit, record and average all milliamp output values from the PM CPMS for thePage 433 of 527 periods corresponding to the compliance test runs (e.g., average all your PM CPMS output values for three corresponding 2

- hour M ethod 5I test runs). (2) If the average of your three PM performance test runs are below 75% of your PM emission limit, you must calculate an operating limit by establishing a relationship of PM CPMS signal to PM concentration using the PM CPMS instrument zero, the average PM CPMS values corresponding to the three compliance test runs, and the average PM concentration from the Method 5 or performance test with the procedures in (i)(1)through (i)(5)of this section.

a. Determine your instrument zero output with one of the following procedures:

(i) Zero point data for in

- situ instruments should be obtained by removing the instrument from the stack and monitoring ambient air on a test bench. (ii) Zero point data for extractive instruments should be obtained by removing the extractive probe from the stack and drawing in clean ambient air. (iii) The zero point can also can be established obtained by performing manualPage 434 of 527

reference method measurements when the flue gas is free of PM emissions or contains very low PM concentrations ( e .g., when your process is not operating, but the fans are operating or your source is combusting only natural gas) and plotting these with the compliance data to find the zero intercept. (iv) If none of the steps in paragraphs (i)(a) through (d) of this section are possible, you must use a zero output value provided by the manufacturer.

b. Determine your PM CPMS instrument average in milliamps, and the average of your corresponding three PM compliance test runs, using equation 5.

(Eq. 5) Where:
X 1 = the PM CPMS data points for the three runs constituting the performance test,
Y 1 = the PM concentration value for the three runs constituting the performance test, and n = the number of data points.Page 435 of 527

c. With your instrument zero expressed in milliamps, your three run average PM CPMS milliamp value, and your three run average PM concentration from your three compliance tests, determine a relationship of lb/Mmbtu per milliamp with equation 6.

(Eq 

### . 6)
Where: R = the relative mg/dscm per milliamp for your PM CPMS,
Y 1 = the three run average mg/dscm PM concentration,
X 1 = the three run average milliamp output from you PM CPMS, and z = the milliamp equivalent of your instrument

zero determined from (2)(a). d. Determine your source specific 30

- day rolling average operating limit using the mg/dscm per milliamp value from Equation 6 in equation 7, below. This sets your operating limit at the PM CPMS output value corresponding to 75% of you r emission limit.Page 436 of 527

(Eq 

### . 7) Where:

O l = the operating limit for your PM CPMS on a 30

- day rolling average, in milliamps. L = your source emission limit expressed in lb/Mmbtu, z = your instrument zero in milliamps, determined from (2)(a), and R = the relative mg/dscm per milliamp for your PM CPMS, from Equation 3.

(3) If the average of your three PM compliance test runs is at or above 75% of your PM emission limit you must determine your operating limit by averaging the PM CPMS milliamp ou tput corresponding to your three PM performance test runs that demonstrate compliance with the emission limit using equation 8 and you must submit all compliance test and PM CPMS data according to the reporting requirements in section (5) below.

(Eq. 8)

Where:Page 437 of 527

X 1 = the PM CPMS data points for all runs i, n = the number of data points, and
O h = your site specific operating limit, in milliamps.

(4) To determine continuous compliance, you must record the PM CPMS output data for all periods when the process is operating and the PM CPMS is not out

- of

- control. You must demonstrate continuous compliance by using all quality

- assured hourly average data collected by the PM CPMS for all operating hours to calculate the arithmet ic average operating parameter in units of the operating limit (e.g., milliamps, PM concentration, raw data signal) on a 30

- day rolling average basis. (5) For PM performance test reports used to set a PM CPMS operating limit, the electronic submission of t he test report must also include the make and model of the PM CPMS instrument, serial number of the instrument, analytical principle of the instrument (e.g. (e.g., beta attenuation), span of the instruments primary analytical range, milliamp value equivale nt to the instrument zero output, technique by which this zero value was determined, and the average milliamp signals corresponding to each PM compliance test

run.Page 438 of 527

36. Section 60.2680 is amended by revising the section heading and revising paragraph (a) introd uctory text to read as follows: §60.2680 What if I do not use a wet scrubber, fabric filter, activated carbon injection, selective noncatalytic reduction, an electrostatic precipitator, or a dry scrubber to comply with the emission limitations? (a) If you use an air pollution control device other than a wet scrubber, activated carbon injection, selective noncatalytic reduction, fabric filter, an electrostatic precipitator, or a dry scrubber or limit emissions in some other manner, including mass balances, t o comply with the emission limitations under §60.2670, you must petition the EPA Administrator for specific operating limits to be established during the initial performance test and continuously monitored thereafter. You must submit the petition at least sixty days before the performance test is scheduled to begin. Your petition must include the five items listed in paragraphs (a)(1) through (5) of this section.

* * * * * 37. Section 60.2685 is amended by revising the section heading and the section to read as follows:Page 439 of 527

§60.2685 Affirmative Defense for Violation of Emission Standards During Malfunction. In response to an action to enforce the standards set forth in paragraph §60.2670 you may assert an affirmative defense to a claim for civil penalties for violat ions of such standards that are caused by malfunction, as defined at §40 CFR 60.2. Appropriate penalties may be assessed if you fail to meet your burden of proving all of the requirements in the affirmative defense. The affirmative defense shall not be ava ilable for claims for injunctive relief. (a) To establish the affirmative defense in any action to enforce such a standard, you must timely meet the reporting requirements in paragraph (b) of this section, and must prove by a preponderance of evidence that : (1) The violation: (i) Was caused by a sudden, infrequent, and unavoidable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner; and (ii) Could not have been prevented through careful plannin g, proper design or better operation and maintenance practices; andPage 440 of 527 (iii) Did not stem from any activity or event that could have been foreseen and avoided, or planned for; and (iv) Was not part of a recurring pattern indicative of inadequate design, oper ation, or maintenance; and (2) Repairs were made as expeditiously as possible when a violation occurred. Off

- shift and overtime labor were used, to the extent practicable to make these repairs; and (3) The frequency, amount and duration of the violation (i ncluding any bypass) were minimized to the maximum extent practicable; and (4) If the violation resulted from a bypass of control equipment or a process, then the bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; a nd (5) All possible steps were taken to minimize the impact of the violation on ambient air quality, the environment, and human health; and (6) All emissions monitoring and control systems were kept in operation if at all possible, consistent with safety a nd good air pollution control practices; and (7) All of the actions in response to the violation were documented by properly signed, contemporaneous operating logs; andPage 441 of 527 (8) At all times, the affected CISWI unit was operated in a manner consistent with good practices for minimizing emissions; and (9) A written root cause analysis has been prepared, the purpose of which is to determine, correct, and eliminate the primary causes of the malfunction and the violation resulting from the malfunction event at issue
. The analysis shall also specify, using best monitoring methods and engineering judgment, the amount of any emissions that were the result of the malfunction. (b) Report. The owner or operator seeking to assert an affirmative defense shall submit a writte n report to the Administrator with all necessary supporting documentation, that it has met the requirements set forth in paragraph (a) of this section. This affirmative defense report shall be included in the first periodic compliance, deviation report

or excess emission report otherwise required after the initial occurrence of the violation of the relevant standard (which may be the end of any applicable averaging period). If such compliance, deviation report or excess emission report is due less than 45 d ays after the initial occurrence of the violation, the affirmative defense report may be included in the second compliance, deviation reportPage 442 of 527

or excess emission report due after the initial occurrence of the violation of the relevant standard. 38. Section 60.26 90 is amended by: a. Revising paragraph (g) introductory text. b. Redesignating paragraphs (g)(2) and (g)(3) as paragraphs (g)(3) and (g)(4), respectively. c. Revising newly designated paragraphs (g)(3) and (g)(4). d. Adding paragraph (g)(2). e. Adding pa ragraph (j). The revisions read as follows: §60.2690 How do I conduct the initial and annual performance test?

* * * * * (g) You must determine dioxins/furans toxic equivalency by following the procedures in paragraphs (g)(1) through (4) of this section.

* * * * * (2) Quantify isomers meeting identification criteria 2, 3, 4, and 5 in Section 5.3.2.5 of Method 23, regardless of whether the isomers meet identification criteria 1 and 7. You must quantify the isomers per Section 9.0 of Method 23. (Note: You m ay reanalyze the sample aliquot or splitPage 443 of 527

to reduce the number of isomers not meeting identification criteria 1 or 7 of Section 5.3.2.5.) (3) For each dioxin/furan (tetra

- through octa

chlorinated) isomer measured in accordance with paragraph (g)(1) and (2) of this section, multiply the isomer concentration by its corresponding toxic equivalency factor specified in table 4 of this subpart. (4) Sum the products calculated in accordance with paragraph (g)(3) of this section to obtain the total concentration of dioxins/furans emitted in terms of toxic equivalency.

* * * * * (j) You must determine dioxins/furans total mass basis by following the procedures in paragraphs (j)(1) through (3) of this section. (1) Measure the concentration of each dioxin/furan
tetra

- through octa

- chlorinated isomer emitted using EPA Method 23 at 40 CFR part 60, appendix A

- 7. (2) Quantify isomers meeting identification criteria 2, 3, 4, and 5 in Section 5.3.2.5 of Method 23, regardless of whether the isomers meet identification criteri a 1 and 7. You must quantify the isomers per Section 9.0 of Method 23. (Note: You may reanalyze the sample aliquot or splitPage 444 of 527

to reduce the number of isomers not meeting identification criteria 1 or 7 of Section 5.3.2.5.) (3) Sum the quantities measured in accordance with paragraphs (j)(1) and (2) of this section to obtain the total concentration of dioxins/furans emitted in terms of total mass basis. 39. Section 60.2710 is revised to read as follows: a. Revising paragraph (a)(6). b. Revising paragraphs (b) thr ough (d). c. Revising paragraph (f). d. Revising paragraphs (g) introductory text and (g)(1). e. Revising paragraphs (h) and (i). f. Revising paragraphs (j) introductory text, (j)(1), and (j)(3). j. Revising paragraph (l) introductory text. k. Revising pa ragraph (m)(2). l. Revising paragraph (n)(4). m. Revising paragraph (o). n. Revising paragraph (r)(1). o. Revising paragraphs (s) introductory text, (s)(1) introductory text, and (s)(2). p. Revising paragraph (t) introductory text, (t)(1) introductory text , and (t)(2).Page 445 of 527 q. Revising paragraphs (u)(1) and (u)(2). r. Revising paragraphs (w) introductory paragraph, (w)(1), (w)(2), and (w)(3). s. Adding paragraph (x). The revisions read as follows: §60. 2710 How do I demonstrate continuous compliance with the emission limitations and the operating limits? (a) * * * (6) All monitoring systems necessary for compliance with any newly applicable monitoring requirements which apply as a result of the cessation or commencement or recommencement of combusting solid w aste must be installed and operational as of the effective date of the waste

- to

fuel, or fuel

- to

- waste switch. All calibration and drift checks must be performed as of the effective date of the
waste

- to

- fuel, or fuel

- to

- waste switch. Relative accuracy
test s must be performed as of the performance test deadline for PM CEMS (if PM CEMS are elected to demonstrate continuous compliance with the particulate matter emission limits). Relative accuracy testing for other CEMS need not be repeated if that testing was previously performed consistent with section 112 monitoring requirements or monitoring requirements under this subpart.Page 446 of 527
(b) You must conduct an annual performance test for the pollutants listed in table 2 of this subpart or tables 6 through 9 of this sub part and opacity for each CISWI unit as required under §60.2690. The annual performance test must be conducted using the test methods listed in table 2 of this subpart or tables 6 through 9 of this subpart and the procedures in §60.2690. Opacity must be me asured using EPA Reference Method 9 at 40 CFR part 60. Annual performance tests are not required if you use CEMS or continuous opacity monitoring systems to determine compliance. (c) You must continuously monitor the operating parameters specified in §60.2 675 or established under §60.2680 and as specified in §60.2735. Operation above the established maximum or below the established minimum operating limits constitutes a deviation from the established operating limits. Three

- hour block average values are use d to determine compliance (except for baghouse leak detection system alarms) unless a different averaging period is established under §60.2680 or, for energy recovery units, where the averaging time for each operating parameter is a 30

- day rolling, calcula ted each hour as the average of the previous 720 operating hours. Operation above the established maximum, below thePage 447 of 527

established minimum, or outside the allowable range of the operating limits specified in paragraph (a) of this section constitutes a deviat ion from your operating limits established under this subpart, except during performance tests conducted to determine compliance with the emission and operating limits or to establish new operating limits. Operating limits are confirmed or reestablished du ring performance tests. (d) You must burn only the same types of waste and fuels used to establish subcategory applicability (for ERUs) and operating limits during the performance test.

* * * * * (f) For energy recovery units, you must conduct an annual p erformance test for opacity using EPA Reference Method 9 at 40 CFR part 60 (except where particulate matter continuous monitoring system or continuous parameter monitoring systems are used) and the pollutants listed in table 7 of this subpart. (g) For fac ilities using a CEMS to demonstrate compliance with the carbon monoxide emission limit, compliance with the carbon monoxide emission limit may be demonstrated by using the CEMS according to the following requirements:Page 448 of 527
(1) You must measure emissions accordi ng to §60.13 to calculate 1

- hour arithmetic averages, corrected to 7 percent oxygen. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. You must demonstrate in itial compliance with the carbon monoxide emissions limit using a 30

- day rolling average of the 1

- hour arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, calculated using Equation 19

- 19 i n section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

– 7.

* * * * * (h) Coal and liquid/gas energy recovery units with annual average heat input rates greater than 250 MMBtu/hr may elect to demonstrate continuous compliance with the part iculate matter emissions limit using a particulate matter CEMS according to the procedures in §60.2730(n) instead of the continuous parameter monitoring system specified in §60.2710(i). Coal and liquid/gas energy recovery units with annual average heat inp ut rates less than 250 MMBtu/hr, incinerators, and small remote incinerators may also elect to demonstrate compliance using a particulate matter CEMS according to the procedures in §60.2730(n) instead of particulate matter testing with EPAPage 449 of 527

Method 5 at 40 C FR part 60, appendix A

- 3 and, if applicable, the continuous opacity monitoring requirements in paragraph (i) of this section. (i) For energy recovery units with annual average heat input rates greater than or equal to 10 MMBTU/hour but less than 250 MMBtu/ hr you must install, operate, certify and maintain a continuous opacity monitoring system (COMS) according to the procedures in §60.2730. (j) For waste

- burning kilns, you must conduct an annual performance test for the pollutants (except mercury and partic ulate matter, and hydrogen chloride if no acid gas wet scrubber is used) listed in table 8 of this subpart. If your waste

- burning kiln is not equipped with a wet scrubber or dry scrubber, you must determine compliance with the hydrogen chloride emission li mit using a CEMS as specified in §60.2730. You must determine compliance with particulate matter using CPMS. You must determine compliance with the mercury emissions limit using a mercury CEMS according to the following requirements: (1) Operate a CEMS in accordance with performance specification 12A at 40 CFR part 60, appendix B or a sorbent trap based integrated monitor in accordance with performance specification 12B at 40 CFR part 60, appendix B. The duration of the performance tes t must be a calendarPage 450 of 527

month. For each calendar month in which the waste

- burning kiln operates, hourly mercury concentration data and stack gas volumetric flow rate data must be obtained. You must demonstrate compliance with the mercury emissions limit using a 30

- day rolling average of these 1

- hour mercury concentrations, including CEMS data during startup and shutdown as defined in this subpart, calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

– 7 of th is part. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content.

* * * * * (3) The owner or operator of a waste

- burning kiln must demonstrate initial compliance by operating a mercury CEMS while the raw mill of the in

- line kiln/raw mill is operating under normal conditions and including at least one period when the raw mill is off.

* * * * * (l) For each CMS required in this section, you must develop and submit to th e EPA Administrator for approval a site

- specific monitoring plan according to the requirements of this paragraph (l) that addresses paragraphs (l)(1)(i) through (vi) of this section.Page 451 of 527

* * * * * (m) * * * (2) Use a flow sensor with a measurement sensitivit y at full scale of no greater than 2 percent.

* * * * * (n) * * * (4) Perform checks at the frequency outlined in your site

- specific monitoring plan to ensure pressure measurements are not obstructed (e.g., check for pressure tap pluggage daily).

* * * * * (o) If you have an operating limit that requires a pH monitoring system, you must meet the requirements in paragraphs (l) and (o)(1) through (4) of this section. (1) Install the pH sensor in a position that provides a representative measurement of scrub ber effluent pH. (2) Ensure the sample is properly mixed and representative of the fluid to be measured. (3) Conduct a performance evaluation of the pH monitoring system in accordance with your monitoring plan at least once each process operating day. (4) Conduct a performance evaluation (including a two

point calibration with one of the two buffer solutions having a pH within 1 of the pH of the operating limit) ofPage 452 of 527

the pH monitoring system in accordance with your monitoring plan at the time of each perf ormance test but no less frequently than quarterly.

* * * * * (r) * * * (1) Install a bag leak detection sensor(s) in a position(s) that will be representative of the relative or absolute particulate matter loadings for each exhaust stack, roof vent, or c ompartment (e.g., for a positive pressure fabric filter) of the fabric filter.

* * * * * (s) For facilities using a CEMS to demonstrate compliance with the sulfur dioxide emission limit, compliance with the sulfur dioxide emission limit may be demonstrated by using the CEMS specified in §60.2730 to measure sulfur dioxide. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. You must calculate a 30

- day rolling aver age of the 1

- hour arithmetic average emission concentrations, including CEMS data during startup and shutdown as defined in this subpart, using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7. The sulfur dioxide CEMS must be operated according toPage 453 of 527

performance specification 2 in appendix B of this part and must follow the procedures and methods specified in this paragraph (s). For sources that have actual inlet emissions less than 100 parts per million dry volume, t he relative accuracy criterion for inlet sulfur dioxide CEMS should be no greater than 20 percent of the mean value of the reference method test data in terms of the units of the emission standard, or 5 parts per million dry volume absolute value of the me an difference between the reference method and the CEMS, whichever is greater. (1) During each relative accuracy test run of the CEMS required by performance specification 2 in appendix B of this part, collect sulfur dioxide and oxygen (or carbon dioxide) data concurrently (or within a 30

- to 60

- minute period) with both the CEMS and the test methods specified in paragraphs (s)(1)(i) and (s)(1)(ii) of this section.

* * * * * (2) The span value of the CEMS at the inlet to the sulfur dioxide control device mus t be 125 percent of the maximum estimated hourly potential sulfur dioxide emissions of the unit subject to this rule. The span value of the CEMS at the outlet of the sulfur dioxide control device must be 50 percent of the maximum estimated hourlyPage 454 of 527

potential sulfur dioxide emissions of the unit subject to this rule.

* * * * * (t) For facilities using a CEMS to demonstrate continuous compliance with the nitrogen oxides emission limit, compliance with the nitrogen oxides emission limit may be demonstrated by us ing the CEMS specified in §60.2730 to measure nitrogen oxides. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. You must calculate a 30

- day rolling average o f the 1

- hour arithmetic average emission concentration using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7. The nitrogen oxides CEMS must be operated according to performance specification 2 in appendix B of th is part and must follow the procedures and methods specified in paragraphs (t)(1) through (t)(5) of this section. (1) During each relative accuracy test run of the CEMS required by performance specification 2 of appendix B of this part, collect nitrogen ox ides and oxygen (or carbon dioxide) data concurrently (or within a 30

- to 60

- minute period) with both the CEMS and the test methods specified in paragraphs (t)(1)(i) and (t)(1)(ii) of this section.Page 455 of 527 (i) For nitrogen oxides, EPA Reference Method 7 or 7E at 4 0 CFR part 60, appendix A

- 4 must be used. (ii) For oxygen (or carbon dioxide), EPA Reference Method 3A or 3B, or as an alternative ANSI/ASME PTC 19.10

– 1981 (incorporated by reference, see §60.17), as applicable, must be used. (2) The span value of the CEMS must be 125 percent of the maximum estimated hourly potential nitrogen oxide emissions of unit.

* * * * * (u) * * * (1) Demonstrate compliance with the appropriate emission limit(s) using a 30

- day rolling average of 1

- hour arithmetic average emission con centrations, including CEMS data during startup and shutdown, as defined in this subpart, calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7. CEMS data during startup and shutdown, as defined in thi s subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. (2) Operate all CEMS in accordance with the applicable procedures under appendices B and F of this part.

* * * * *Page 456 of 527 (w) For energy recovery units with a design heat input capacity of 100 MMBtu per hour or greater that do not use a carbon monoxide CEMS, you must install, operate, and maintain a oxygen analyzer system as defined in §60.2875 according to the procedures in paragraphs (w)(1) through (4) of this section. (1 ) The oxygen analyzer system must be installed by the initial performance test date specified in §60.2675. (2) You must operate the oxygen trim system within compliance with paragraph (w)(3) of this section at all times. (3) You must maintain the oxygen l evel such that the 30

- day rolling average that is established as the operating limit for oxygen is not below the lowest hourly average oxygen concentration measured during the most recent CO performance test.

* * * * * (x) For energy recovery units with an nual average heat input rates greater than or equal to 250 MMBtu/hour and
waste

- burning kilns, you must install, calibrate, maintain, and operate a PM CPMS and record the output of the system as specified in paragraphs (x)(1) through (8) of this section. F or other energy recovery units, you may elect to use PM CPMS operated in accordance with this section. PMPage 457 of 527

CPMS are suitable in lieu of using other CMS for monitoring PM compliance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure). (1) I nstall, calibrate, operate, and maintain your PM CPMS according to the procedures in your approved site

specific monitoring plan developed in accordance with §60.2710(l) and (x)(1)(i) through (iii) of this section. (i) The operating principle of the PM CPM S must be based on in

- stack or extractive light scatter, light scintillation, beta attenuation, or mass accumulation of the exhaust gas or representative sample. The reportable measurement output from the PM CPMS must be expressed as milliamps. (ii) The PM CPMS must have a cycle time (i.e., period required to complete sampling, measurement, and reporting for each measurement) no longer than 60 minutes. (iii) The PM CPMS must be capable of detecting and responding to particulate matter concentrations of no
g reater than 0.5 mg/actual cubic meter. (2) During the initial performance test or any such subsequent performance test that demonstrates compliance with the PM limit, you must adjust the site

- specific operating limit in accordance with the results of thePage 458 of 527

p erformance test according to the procedures specified in §60.2675. (3) Collect PM CPMS hourly average output data for all energy recovery unit or waste

- burning kiln operating hours. Express the PM CPMS output as milliamps. (4) Calculate the arithmetic 30

- d ay rolling average of all of the hourly average PM CPMS output collected during all energy recovery unit or waste

- burning kiln operating hours data (milliamps). (5) You must collect data using the PM CPMS at all times the energy recovery unit or waste

- burn ing kiln is operating and at the intervals specified in paragraph (x)(1)(ii) of this section, except for periods of monitoring system malfunctions, repairs associated with monitoring system malfunctions, required monitoring system quality assurance or qual ity control activities (including, as applicable, calibration checks and required zero and span adjustments), and any scheduled maintenance as defined in your site

- specific monitoring plan. (6) You must use all the data collected during all
energy recovery unit or waste

- burning kiln operating hours in assessing the compliance with your operating limit except:Page 459 of 527 (i) Any data collected during monitoring system malfunctions, repairs associated with monitoring system malfunctions, or required monitoring system qu ality assurance or quality control activities conducted during monitoring system malfunctions are not used in calculations (report any such periods in your annual deviation report); (ii) Any data collected during periods when the monitoring system is out o f control as specified in your site

- specific monitoring plan, repairs associated with periods when the monitoring system is out of control, or required monitoring system quality assurance or quality control activities conducted during out

- of

- control period s are not used in calculations (report emissions or operating levels and report any such periods in your annual deviation report); (iii) Any PM CPMS data recorded during periods of CEMS data during startup and shutdown, as defined in this subpart. (7) You must record and make available upon request results of PM CPMS system performance audits, as well as the dates and duration of periods from when the PM CPMS is out of control until completion of the corrective actions necessary to return the PM CPMS to ope ration consistent with your site

- specific monitoring plan.Page 460 of 527 (8) For any deviation of the 30

- day rolling average PM CPMS average value from the established operating parameter limit, you must: (i) Within 48 hours of the deviation, visually inspect the air p ollution control device; (ii) If inspection of the air pollution control device identifies the cause of the deviation, take corrective action as soon as possible and return the PM CPMS measurement to within the established value; and (iii) Within 30 days of the deviation or at the time of the annual compliance test, whichever comes first, conduct a PM emissions compliance test to determine compliance with the PM emissions limit and to verify. Within 45 days of the deviation, you must re

- establish the
CPMS operating limit. You are not required to conduct additional testing for any deviations that occur between the time of the original deviation and the PM emissions compliance test required under this paragraph. (iv) PM CPMS deviations leading to more than four required performance tests in a 12

- month process operating period (rolling monthly) constitute a violation of this subpart.Page 461 of 527

40. Section 60.2720 is amended by revising paragraph (a)(3)(ii). §60. 2720 May I conduct performance testing less often? (a) * * * (3) * * * (ii) For fugitive emissions, visible emissions (of combustion ash from the ash conveying system) for 2 percent of the time during each of the three 1

- hour observation periods.

* * * * * 41. Section 60.2730 is amended by: a. Revising paragraph (c). b. Revising paragraph (e) introductory text. c. Revising paragraphs (f) through (j). d. Revising paragraph (l)(1) and (l)(2). e. Revising paragraph (m) introductory text. f. Revising paragraphs (n) introductory text, (n)(6), (n)(7), (n)(9), (n)(10), (n)(11), and paragraph (n)(12) introductory text. g. Revising paragraphs (o)(1), (o)(2), and (o)(9). h. Removing paragraph (n)(14). i. Adding paragraphs (r) and (s). The revisions read as follows:Page 462 of 527

§60. 2730 What monitoring equipment must I install and what parameters must I monitor?

* * * * * (c) If you are using something other than a wet scrubber, activated carbon, selective non

- catalytic reduction, an electrostatic precipitator, or a dry scrubber to comply with the emission limitations under §60.2670, you must install, calibrate (to the manufacturers’ specifications), maintain, and operate the equipment necessary to monitor compliance with the site

- specific operating limits established using the procedures in §60.2680.

* * * * * (e) If you use selective no ncatalytic reduction to comply with the emission limitations, you must complete the following:

* * * * * (f) If you use an electrostatic precipitator to comply with the emission limits of this subpart, you must monitor the secondary power to the electrosta tic precipitator collection plates and maintain the 3

- hour block averages at or above the operating limits established during the mercury or particulate matter performance test.Page 463 of 527
(g) For waste

- burning kilns not equipped with a wet scrubber or dry scrubber, in place of hydrogen chloride testing with EPA Method 321 at 40 CFR part 63, appendix A, an owner or operator must install, calibrate, maintain, and operate a CEMS for monitoring hydrogen chloride emissions discharged to the atmosphere and record the outpu t of the system. To demonstrate continuous compliance with the hydrogen chloride emissions limit for units other than
waste

- burning kilns not equipped with a wet scrubber or dry scrubber, a facility may substitute use of a hydrogen chloride CEMS for conduc ting the hydrogen chloride annual performance test, monitoring the minimum hydrogen chloride sorbent flow rate, monitoring the minimum scrubber liquor pH. (h) To demonstrate continuous compliance with the particulate matter emissions limit, a facility may substitute use of a particulate matter CEMS for conducting the particulate matter annual performance test and other CMS monitoring for PM compliance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure). (i) To demonstrate continuous compli ance with the dioxin/furan emissions limit, a facility may substitute use of a continuous automated sampling system for the dioxin/furan annual performance test. You must record thePage 464 of 527

output of the system and analyze the sample according to EPA Method 23 at 40 CFR part 60, appendix A

- 7. This option to use a continuous automated sampling system takes effect on the date a final performance specification applicable to dioxin/furan from continuous monitors is published in the Federal Register . The owner or operat or who elects to continuously sample dioxin/furan emissions instead of sampling and testing using EPA Method 23 at 40 CFR part 60, appendix A

- 7 must install, calibrate, maintain and operate a continuous automated sampling system and must comply with the re quirements specified in §60.58b(p) and (q). A facility may substitute continuous dioxin/furan monitoring for the minimum sorbent flow rate, if activated carbon sorbent injection is used solely for compliance with the dioxin/furan emission limit. (j) To dem onstrate continuous compliance with the mercury emissions limit, a facility may substitute use of a continuous automated sampling system for the mercury annual performance test. You must record the output of the system and analyze the sample at set interva ls using any suitable determinative technique that can meet performance specification 12B criteria. This option to use a continuous automated sampling system takes effect on the date a final performance specification applicable to mercury fromPage 465 of 527

monitors is published in the Federal Register . The owner or operator who elects to continuously sample mercury emissions instead of sampling and testing using EPA Method 29 or 30B at 40 CFR part 60, appendix A

- 8, ASTM D6784

- 02 (Reapproved 2008) (incorporated by refere nce, see §60.17), or an approved alternative method for measuring mercury emissions, must install, calibrate, maintain and operate a continuous automated sampling system and must comply with the requirements specified in §60.58b(p) and (q). A facility may substitute continuous mercury monitoring for the minimum sorbent flow rate, if activated carbon sorbent injection is used solely for compliance with the mercury emission limit. (k) To demonstrate continuous compliance with the nitrogen oxides emissions lim it, a facility may substitute use of a CEMS for the nitrogen oxides annual performance test to demonstrate compliance with the nitrogen oxides emissions limits and monitoring the charge rate, secondary chamber temperature and reagent flow for selective

non catalytic reduction, if applicable. (1) Install, calibrate, maintain and operate a CEMS for measuring nitrogen oxides emissions discharged to the atmosphere and record the output of the system. The requirements under performance specification 2 of appendi xPage 466 of 527

B of this part, the quality assurance procedure 1 of appendix F of this part and the procedures under §60.13 must be followed for installation, evaluation and operation of the CEMS. (2) Following the date that the initial performance test for nitrogen ox ides is completed or is required to be completed under §60.2690, compliance with the emission limit for nitrogen oxides required under §60.52b(d) must be determined based on the 30

- day rolling average of the hourly emission concentrations using CEMS outlet data. The 1

- hour arithmetic averages must be expressed in parts per million by volume corrected to 7 percent oxygen (dry basis) and used to calculate the 30

- day rolling average concentrations. CEMS data during startup and shutdown, as defined in this subp art, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic averages must be calculated using the data points required under §60.13(e)(2). (l) * * * (1) Install, calibrate, maintain and operate a CEMS for me asuring sulfur dioxide emissions discharged to the atmosphere and record the output of the system. The requirements under performance specification 2 of appendix B of this part, the quality assurance requirements ofPage 467 of 527

procedure 1 of appendix F of this part a nd the procedures under §60.13 must be followed for installation, evaluation and operation of the CEMS. (2) Following the date that the initial performance test for sulfur dioxide is completed or is required to be completed under §60.2690, compliance with the sulfur dioxide emission limit may be determined based on the 30

- day rolling average of the hourly arithmetic average emission concentrations using CEMS outlet data. The 1

- hour arithmetic averages must be expressed in parts per million corrected to 7 pe rcent oxygen (dry basis) and used to calculate the 30

- day rolling average emission concentrations. CEMS data during startup and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hou r arithmetic averages must be calculated using the data points required under §60.13(e)(2). (m) For energy recovery units that do not use a wet scrubber, fabric filter with bag leak detection system, or particulate matter CEMS, you must install, operate, c ertify and maintain a continuous opacity monitoring system according to the procedures in paragraphs (m)(1) through (5) of this section by the compliance date specified in §60.2670. Energy recovery units that use a particulatePage 468 of 527

matter CEMS to demonstrate in itial and continuing compliance according to the procedures in §60.2730(n) are not required to install a continuous opacity monitoring system and must perform the annual performance tests for opacity consistent with §60.2710(f).

* * * * * (n) For coal and liquid/gas energy recovery units, incinerators, and small remote incinerators, an owner or operator may elect to install, calibrate, maintain and operate a CEMS for monitoring particulate matter emissions discharged to the atmosphere and record the output of the system. The owner or operator of an affected facility who continuously monitors particulate matter emissions instead of conducting performance testing using EPA Method 5 at 40 CFR part 60, appendix A

- 3 or, as applicable, monitor with a particulate m atter CPMS according to paragraph (r) of this section, must install, calibrate, maintain and operate a CEMS and must comply with the requirements specified in paragraphs (n)(1) through (n)(13) of this section.

* * * * * (6) The owner or operator of an aff ected facility must conduct an initial performance test for particulate matter emissions as required under §60.2690. Compliance with the particulate matter emission limit, if PM CEMS are electedPage 469 of 527

for demonstrating compliance, must be determined by using the CEMS specified in paragraph (n) of this section to measure particulate matter. You must calculate a 30

- day rolling average of 1

- hour arithmetic average emission concentrations, including CEMS data during startup and shutdown, as defined in this subpart, u sing Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, appendix A

- 7 of this part. (7) Compliance with the particulate matter emission limit must be determined based on the 30

- day rolling average calculated using Equation 19

- 19 in section 12.4.1 of EPA Reference Method 19 at 40 CFR part 60, Appendix A

- 7 of the part from the 1

- hour arithmetic average of the CEMS outlet data.

* * * * * (9) The 1

- hour arithmetic averages required under paragraph (n)(7) of this section must be expressed in milligrams per dry standard cubic meter corrected to 7 percent oxygen (or carbon dioxide)(dry basis) and must be used to calculate the 30

- day rolling average emission concentrations. CEMS data during startup and shutdown, as defined in this su bpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

-Page 470 of 527

hour arithmetic averages must be calculated using the data points required under §60.13(e)(2). (10) All valid CEMS data must be used in calculating average emissi on concentrations even if the minimum CEMS data requirements of paragraph (n)(8) of this section are
not met. (11) The CEMS must be operated according to performance specification 11 in appendix B of this part. (12) During each relative accuracy test run of the CEMS required by performance specification 11 in appendix B of this part, particulate matter and oxygen (or carbon dioxide) data must be collected concurrently (or within a 30

- to 60

- minute period) by both the CEMS and the following test methods.

* * * * * (o) * * * (1) Install, calibrate, maintain, and operate a CEMS for measuring carbon monoxide emissions discharged to the atmosphere and record the output of the system. The requirements under performance specification 4B of appendix B of this part , the quality assurance procedure 1 of appendix F of this part and the procedures under §60.13 must be followed for installation, evaluation, and operation of the CEMS.Page 471 of 527 (2) Following the date that the initial performance test for carbon monoxide is complet ed or is required to be completed under §60.2690, compliance with the carbon monoxide emission limit may be determined based on the 30

- day rolling average of the hourly arithmetic average emission concentrations, including CEMS data during startup and shut down as defined in this subpart, using CEMS outlet data. Except for CEMS data during startup and shutdown, as defined in this subpart, the 1

- hour arithmetic averages must be expressed in parts per million corrected to 7 percent oxygen (dry basis) and used to calculate the 30

- day rolling average emission concentrations. CEMS data collected during startup or shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are measured at stack oxygen content. The 1

- hour arithmetic
averages mus t be calculated using the data points required under §60.13(e)(2).

* * * * * (q) For energy recovery units with a design heat input capacity of 100 MMBtu per hour or greater that do not use a carbon monoxide CEMS, you must install, operate, and maintain a oxygen analyzer system as defined in §60.2875 according to the procedures in paragraphs (q)(1) through (4) of this section.Page 47 2 of 527
(1) The oxygen analyzer system must be installed by the initial performance test date specified in §60.2675. (2) You must operate the oxygen trim system within compliance with paragraph (q)(3) of this section at all times. (3) You must maintain the oxygen level such that the 30

- day rolling average that is established as the operating limit for oxygen according to paragraph (q)(4) of this section is not below the lowest hourly average oxygen concentration measured during the most recent CO performance test. (4) You must calculate and record a 30

- day rolling average oxygen concentration using Equation 19

- 19 in section 12.4.1 of EPA Refe rence Method 19 of Appendix A

- 7 of this part. (r) For energy recovery units with annual average heat input rates greater than or equal to 250 MMBtu/hour and
waste

- burning kilns, you must install, calibrate, maintain, and operate a PM CPMS and record the ou tput of the system as specified in paragraphs (r)(1) through (8) of this section. For other energy recovery units, you may elect to use PM CPMS operated in accordance with this section. PM CPMS are suitable in lieu of using other CMS for monitoringPage 473 of 527

PM comp liance (e.g., bag leak detectors, ESP secondary power, PM scrubber pressure) (1) Install, calibrate, operate, and maintain your PM CPMS according to the procedures in your approved site

specific monitoring plan developed in accordance with §60.2710(l) and (r)(1)(i) through (iii) of this section. (i) The operating principle of the PM CPMS must be based on in

- stack or extractive light scatter, light scintillation, beta attenuation, or mass accumulation of the exhaust gas or representative sample. The reportab le measurement output from the PM CPMS must be expressed as milliamps. (ii) The PM CPMS must have a cycle time (i.e., period required to complete sampling, measurement, and reporting for each measurement) no longer than 60 minutes. (iii) The PM CPMS must b e capable of detecting and responding to particulate matter concentrations of no greater than 0.5 mg/actual cubic meter. (2) During the initial performance test or any such subsequent performance test that demonstrates compliance with the PM limit, you mus t adjust the site

- specific operating limit in accordance with the results of the performance test according to the procedures specified in §60.2675.Page 474 of 527
(3) Collect PM CPMS hourly average output data for all energy recovery unit or waste

- burning kiln operating hours. Express the PM CPMS output as milliamps.. (4) Calculate the arithmetic 30

- day rolling average of all of the hourly average PM CPMS output collected during all energy recovery unit or waste

- burning kiln operating hours data (milliamps). (5) You must collect data using the PM CPMS at all times the energy recovery unit or waste

- burning kiln is operating and at the intervals specified in paragraph (r)(1)(ii) of this section, except for periods of monitoring system malfunctions, repairs associated with

m onitoring system malfunctions, required monitoring system quality assurance or quality control activities (including, as applicable, calibration checks and required zero and span adjustments), and any scheduled maintenance as defined in your site

- specific monitoring plan. (6) You must use all the data collected during all energy recovery unit or waste

- burning kiln operating hours in assessing the compliance with your operating limit except: (i) Any data collected during monitoring system malfunctions, repai rs associated with monitoring system malfunctions, or required monitoring system qualityPage 475 of 527

assurance or quality control activities conducted during monitoring system malfunctions are not used in calculations (report any such periods in your annual deviation report); (ii) Any data collected during periods when the monitoring system is out of control as specified in your site

- specific monitoring plan, repairs associated with periods when the monitoring system is out of control, or required monitoring system qua lity assurance or quality control activities conducted during out

- of

- control periods are not used in calculations (report emissions or operating levels and report any such periods in your annual deviation report); (iii) Any PM CPMS data recorded during per iods of CEMS data during startup and shutdown, as defined in this subpart. (7) You must record and make available upon request results of PM CPMS system performance audits, as well as the dates and duration of periods from when the PM CPMS is out of contro l until completion of the corrective actions necessary to return the PM CPMS to operation consistent with your site

- specific monitoring plan. (8) For any deviation of the 30

- day rolling average PM CPMS average value from the established operating parameter limit, you must:Page 476 of 527 (i) Within 48 hours of the deviation, visually inspect the air pollution control device; (ii) If inspection of the air pollution control device identifies the cause of the deviation, take corrective action as soon as possible and return t he PM CPMS measurement to within the established value; and (iii) Within 30 days of the deviation or at the time of the annual compliance test, whichever comes first, conduct a PM emissions compliance test to determine compliance with the PM emissions lim it and to verify. Within 45 days of the deviation, you must re

- establish the CPMS operating limit. You are not required to conduct additional testing for any deviations that occur between the time of the original deviation and the PM emissions compliance t est required under this paragraph. (iv) PM CPMS deviations leading to more than four required performance tests in a 12

- month process operating period (rolling monthly) constitute a violation of this subpart. (s) If you use a dry scrubber to comply with the emission limits of this subpart, you must monitor the injection rate of each sorbent and maintain the 3

- hour block averages at or above the operating limits established during the hydrogen chloride performance test. 42. Section 60.2740 is amended by:Page 477 of 527

a. Re vising introductory text. b. Revising paragraph (b)(5). c. Revising paragraph (e). d. Revising paragraphs (o)(2) through (o)(7). e. Adding paragraphs (o)(8) and (o)(9). f. Revising paragraph (u) and (v). g. Adding paragraph (w). The revisions read as follo ws: §60. 2740 What records must I keep? You must maintain the items (as applicable) as specified in paragraphs (a), (b), and (e) through (w) of this section for a period of at least 5 years:

* * * * * (b) * * * (5) For affected CISWI units that establish operating limits for controls other than wet scrubbers under §60.2675(d) through (g) or §60.2680, you must maintain data collected for all operating parameters used to determine compliance with the operating limits. For energy recovery units using activate d carbon injection or a dry scrubber, you must also maintain records of the load fraction and corresponding sorbent injection rate records.

* * * * *Page 478 of 527
(e) Identification of calendar dates and times for which data show a deviation from the operating limits in table 3 of this subpart or a deviation from other operating limits established under §60.2675(d) through (g) or §60.2680 with a description of the deviations, reasons for such deviations, and a description of corrective actions taken.

* * * * * (o) * * * (2) All 1

- hour average concentrations of sulfur dioxide emissions. You must indicate which data are CEMS data during startup and shutdown. (3) All 1

- hour average concentrations of nitrogen oxides emissions. You must indicate which data are CEMS data d uring startup and shutdown. (4) All 1

- hour average concentrations of carbon monoxide emissions. You must indicate which data are CEMS data during startup and shutdown. (5) All 1

- hour average concentrations of particulate matter emissions. You must indicate which data are CEMS data during startup and shutdown. (6) All 1

- hour average concentrations of mercury emissions. You must indicate which data are CEMS data during startup and shutdown.Page 479 of 527
(7) All 1

- hour average concentrations of hydrogen chloride emissions. You must indicate which data are CEMS data during startup and shutdown. (8) All 1

- hour average percent oxygen concentrations. (9) All 1

- hour average PM CPMS readings or particulate matter CEMS outputs.

* * * * * (u) For operating units that combust non

- ha zardous secondary materials that have been determined not to be solid waste pursuant to §241.3(b)(1), you must keep a record which documents how the secondary material meets each of the legitimacy criteria under §241.3(d)(1). If you combust a fuel that has been processed from a discarded

non - hazardous secondary material pursuant to §241.3(b)(4), you must keep records as to how the operations that produced the fuel satisfies the definition of processing in §241.2 and each of the legitimacy criteria in §241.3 (d)(1) of this chapter. If the fuel received a non

- waste determination pursuant to the petition process submitted under §241.3(c), you must keep a record that documents how the fuel satisfies the requirements of the petition
process. For operating units th at combust non

- hazardous secondary materials as fuel per §241.4, you must keepPage 480 of 527

records documenting that the material is a listed non

- waste under §241.4(a). (v) Records of the criteria used to establish that the unit qualifies as a small power production fa cility under section 3(17)(C) of the Federal Power Act (16 U.S.C. 796(17)(C)) and that the waste material the unit is proposed to burn is homogeneous. (w) Records of the criteria used to establish that the unit qualifies as a cogeneration facility under se ction 3(18)(B) of the Federal Power Act (16 U.S.C. 796(18)(B)) and that the waste material the unit is proposed to burn is homogeneous. 43. Section 60.2770 is amended by: a. Revising paragraph (m) introductory text. b. Revising paragraph (n). c. Adding paragra ph (p). The revisions read as follows: §60. 2770 What information must I include in my annual report?

* * * * * (m) If there were periods during which the continuous monitoring system, including the CEMS, was out of control as specified in paragraph (o) of this section, the annual report must contain the following information for eachPage 481 of 527

deviation from an emission or operating limitation occurring for a CISWI unit for which you are using a continuous monitoring system to comply with the emission and operating limitations in this subpart.

* * * * * (n) If there were periods during which the continuous monitoring system, including the CEMS, was not out of control as specified in paragraph (o) of this section, a statement that there were not periods during which the continuous monitoring system was out of control during the reporting period.

* * * * * (p) For energy recovery units, include the annual heat input and average annual heat input rate of all fuels being burned in the unit to verify which subcategory of energy recovery unit applies.
44. Section 60.2795 is revised to read as follows: §60.2795 In what form can I submit my reports? (a) Submit initial, annual, and deviation reports electronically or in paper format, postmarked on or before the submittal due dates
. (b) Submit results of performance tests and CEMS performance evaluation tests as follows.Page 482 of 527 (1) Within 60 days after the date of completing each performance test as required by this subpart, you must submit the results of the performance tests required by this subpart to EPA’s WebFIRE database by using the Compliance and Emissions Data Reporting Interface (CEDRI) that is accessed through EPA’s Central Data Exchange (CDX)(www.epa.gov/cdx). Performance test data must be submitted in the file format generated through use of EPA’s Electronic Reporting Tool (ERT) (see http://www.epa.gov/ttn/chief/ert/index.html ). Only data collected using test methods on the ERT website are subject to this requirement for submitting reports electronically to WebFIRE. Owners or op erators who claim that some of the information being submitted for performance tests is confidential business information (CBI) must submit a complete ERT file including information claimed to be CBI on a compact disk, flash drive, or other commonly used

e lectronic storage media to EPA. The electronic media must be clearly marked as CBI and mailed to U.S. EPA/OAPQS/CORE CBI Office, Attention: WebFIRE Administrator, MD C404

- 02, 4930 Old Page Rd., Durham, NC 27703. The same ERT file with the CBI omitted must be submitted to EPA via CDX as described earlier in this paragraph. At the discretion of the delegated authority, you must also submit thesePage 483 of 527

reports, including the confidential business information, to the delegated authority in the format specified by the delegated authority. For any performance test conducted using test methods that are not listed on the ERT website, the owner or operator shall submit the results of the performance test in paper submissions to the Administrator. (2) Within 60 days after t he date of completing each CEMS performance evaluation test, as defined in this subpart and required by this subpart, you must submit the relative accuracy test audit (RATA) data electronically into EPA’s Central Data Exchange by using CEDRI as mentioned i n paragraph (b)(1) of this section. Only RATA pollutants that can be documented with the ERT (as listed on the ERT website) are subject to this requirement. For any performance evaluations with no corresponding RATA pollutants listed on the ERT website, th e owner or operator shall submit the results of the performance evaluation in paper submissions to the Administrator. 45. Section 60.2875 is amended by: a. Adding definitions for “30

- day rolling average,” “Annual heat input,” “Average annual heat input rate,” “Contained gaseous material,” “Continuous emission monitoring system,” “Dry scrubber,” “Foundry sand thermal reclamation unit,” “Load fraction,” “Municipal solid wastePage 484 of 527

or municipal type solid waste,” “Oxygen analyzer system,” “Oxygen trim system,” “Respons ible official,” and “Solid waste.” b. Revising definitions for “Calendar year,” “Chemical recovery unit,” “Commercial and industrial solid waste incinerator (CISWI),” “Continuous monitoring system (CMS),” “Cyclonic burn barrel,” “Energy recovery unit,” “En ergy recovery unit designed to burn biomass (Biomass),” “Energy recovery unit designed to burn liquid waste materials and gas (Liquid/gas),” “Incinerator,” “Modification or modified CISWI unit,” “Process change”, “Raw mill”, “Small remote incinerator”, “So il treatment unit,” “Solid waste incineration unit,” “Space heater,” “Waste burning kiln,” and “Wet scrubber.” c. Removing the definition for “Homogeneous waste.” The revisions read as follows: §60. 2875 What definitions must I know?

* * * * * 30

- day rolling average means the arithmetic mean of the previous 720 hours of valid operating data. Valid data excludes periods when this unit is not operating. The 720 hours should be consecutive, but not necessarily continuous if operations are intermittent.

* * * * *Page 485 of 527 Annual heat input means the heat input for the 12 months preceding the compliance demonstration.

* * * * * Average annual heat input rate means annual heat input divided by the hours of operation for the 12 months preceding the compliance demonstra tion.

* * * * * Calendar year means 365 consecutive days starting on January 1 and ending on December 31. CEMS data during startup and shutdown means the following: (1) For incinerators, small remote incinerators, and energy recovery units: CEMS data colle cted during the first hours of operation of a CISWI unit startup from a cold start until waste is fed into the unit and the hours of operation following the cessation of waste material being fed to the CISWI unit during a unit shutdown. For each startup ev ent, the length of time that CEMS data may be claimed as being CEMS data during startup must be 48 operating hours or less. For each shutdown event, the length of time that CEMS data may be claimed as being CEMS data during shutdown must be 24 operating ho urs or less. (2) For waste

- burning kilns: CEMS data collected during the periods of kiln operation that do not includePage 486 of 527

normal operations. Startup begins when the kiln’s induced fan is turned on and continues until continuous feed is introduced into the kil n, at which time the kiln is in normal operating mode. Shutdown begins when feed to the kiln is halted. Chemical recovery unit means combustion units burning materials to recover chemical constituents or to produce chemical compounds where there is an exis ting commercial market for such recovered chemical constituents or compounds. A chemical recovery unit is not an incinerator,
a waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart. The following seven types of unit s are considered chemical recovery units:

* * * * * Commercial and industrial solid waste incineration (CISWI) unit means any distinct operating unit of any commercial or industrial facility that combusts, or has combusted in the preceding 6 months, any solid waste as that term is defined in 40 CFR part 241. If the operating unit burns materials other than traditional fuels as defined in §241.2 that have been discarded, and you do not keep and produce records as required by §60.2740(u), the operating unit is a CISWI unit. While not all CISWI units will include all of the following components, a CISWI unitPage 487 of 527

includes, but is not limited to, the solid waste feed system, grate system, flue gas system, waste heat recovery equipment, if any, and bottom ash system. The CISWI unit does not include air pollution control equipment or the stack. The CISWI unit boundary starts at the solid waste hopper (if applicable) and extends through two areas: the combustion unit flue gas system, which ends immediately after the last combustion chamber or after the waste heat recovery equipment, if any; and the combustion unit bottom ash system, which ends at the truck loading station or similar equipment that transfers the ash to final disposal. The CISWI unit includes all ash handling systems connected to the bottom ash handling system. Contained gaseous material means gases that are in a container w hen that container is combusted. Continuous emission monitoring system (CEMS) means the total equipment that may be required to meet the data acquisition and availability requirements of this subpart, used to sample, condition (if applicable), analyze, and provide a record of emissions. Continuous monitoring system (CMS) means the total equipment, required under the emission monitoring sections in applicable subparts, used to sample and condition (if applicable), to analyze, and to provide a permanent recor dPage 488 of 527

of emissions or process parameters. A particulate matter continuous parameter monitoring system (PM CPMS) is a type of CMS. Cyclonic burn barrel means a combustion device for waste materials that is attached to a 55 gallon, open

- head drum. The device con sists of a lid, which fits onto and encloses the drum, and a blower that forces combustion air into the drum in a cyclonic manner to enhance the mixing of waste material and air. A cyclonic burn barrel is not an incinerator, a waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart.

* * * * * Dry scrubber means an add

- on air pollution control system that injects dry alkaline sorbent (dry injection) or sprays an alkaline sorbent (spray dryer) to react with and neutralize acid gas in the exhaust stream forming a dry powder material. Sorbent injection systems in fluidized bed boilers and process heaters are included in this definition. A dry scrubber is a dry control system.

* * * * * Energy recovery unit means a combustion unit combusting solid waste (as that term is defined by the Administrator under Resource Conservation and Recovery Act in 40 CFR 241) for energy recovery. Energy recovery unitsPage 489 of 527

include units that would be considered boilers and process heaters if they did not combust solid waste. Energy recovery unit designed to burn biomass (Biomass) means an energy recovery unit that burns solid waste, biomass, and non

- coal solid materials but less than 10 percent coal, on a heat input basis on an annual average, either alone or in combination with liquid waste, liquid fuel or gaseous fuels.

* * * * * Energy recovery unit designed to burn liquid waste materials and gas (Liquid/gas) means an energy recovery unit that burns a liquid waste with liquid or gaseous fuels
not c ombined with any solid fuel or waste materials.

* * * * * Foundry sand thermal reclamation unit means a type of part reclamation unit that removes coatings that are on foundry sand. A foundry sand thermal reclamation unit is not an incinerator, a waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart. Incinerat or means any furnace used in the process of combusting solid waste (as that term is defined by the Administrator under Resource Conservation and Recovery Act in 40 CFR 241) for the purpose of reducing the volume ofPage 490 of 527

the waste by removing combustible matter. Incinerator designs include single chamber and two

- chamber.

* * * * * Load fraction means the actual heat input of an energy recovery unit divided by heat input during the performance test that established the minimum sorbent injection rate or minimum act ivated carbon injection rate, expressed as a fraction (e.g., for 50 percent load the load fraction is 0.5).

* * * * * Modification or modified CISWI unit means a CISWI unit that has been changed later than [ THE DATE SIX MONTHS AFTER
PUBLICATION OF THE FINA L RULE IN THE FEDERAL REGISTER ], and that meets one of two criteria:

* * * * * (2) Any physical change in the CISWI unit or change in the method of operating it that increases the amount of any air pollutant emitted for which section 129 or section 111 of the Clean Air Act has established standards. Municipal solid waste or municipal

- type solid waste means household, commercial/retail, or institutional waste. Household waste includes material discarded by residential dwellings, hotels, motels, and other si milar permanent or temporary housing. Commercial/retail waste includesPage 491 of 527

material discarded by stores, offices, restaurants, warehouses, nonmanufacturing activities at industrial facilities, and other similar establishments or facilities. Institutional waste includes materials discarded by schools, by hospitals (nonmedical), by nonmanufacturing activities at prisons and government facilities, and other similar establishments or facilities. Household, commercial/retail, and institutional waste does include
yar d waste and refuse

- derived fuel. Household, commercial/retail, and institutional waste does not include used oil; sewage sludge; wood pallets; construction, renovation, and demolition wastes (which include railroad ties and telephone poles); clean wood; in dustrial process or manufacturing wastes; medical waste; or motor vehicles (including motor vehicle parts or vehicle fluff).

* * * * * Oxygen analyzer system means all equipment required to determine the oxygen content of a gas stream and used to monitor o xygen in the boiler or process heater flue gas, boiler/process heater, firebox, or other appropriate location. This definition includes oxygen trim systems and certified oxygen CEMS. The source owner or operator is responsible to install, calibrate, mainta in, and operatePage 492 of 527

the oxygen analyzer system in accordance with the manufacturer’s recommendations. Oxygen trim system means a system of monitors that is used to maintain excess air at the desired level in a combustion device. A typical system consists of a flue gas oxygen and/or carbon monoxide monitor that automatically provides a feedback signal to the combustion air controller.

* * * * * Process change means any of the following physical or operational changes: (1) A physical change (maintenance activiti es excluded) to the CISWI unit which may increase the emission rate of any air pollutant to which a standard applies; (2) An operational change to the CISWI unit where a new type of non

- hazardous secondary material is being combusted; (3) A physical change (maintenance activities excluded) to the air pollution control devices used to comply with the emission limits for the CISWI unit (e.g., replacing an electrostatic precipitator with a fabric filter); (4) An operational change to the air pollution control devices used to comply with the emission limits for thePage 493 of 527

affected CISWI unit (e.g., change in the sorbent injection rate used for activated carbon injection).

* * * * * Raw mill means a ball or tube mill, vertical roller mill or other size reduction equipme nt, that is not part of an in

- line kiln/raw mill, used to grind feed to the appropriate size. Moisture may be added or removed from the feed during the grinding operation. If the raw mill is used to remove moisture from feed materials, it is also, by defin ition, a raw material dryer. The raw mill also includes the air separator associated with the raw mill.

* * * * * Responsible official means one of the following: (1) For a corporation: a president, secretary, treasurer, or vice

- president of the corporatio n in charge of a principal business function, or any other person who performs similar policy or decision

- making functions for the corporation, or a duly authorized representative of such person if the representative is responsible for the overall operatio n of one or more manufacturing, production, or operating facilities applying for or subject to a permit and either:Page 494 of 527 (i) The facilities employ more than 250 persons or have gross annual sales or expenditures exceeding $25 million (in second quarter 1980 dol lars); or (ii) The delegation of authority to such representatives is approved in advance by the permitting authority; (2) For a partnership or sole proprietorship: a general partner or the proprietor, respectively; (3) For a municipality, State, Federal, or other public agency: Either a principal executive officer or ranking elected official. For the purposes of this part, a principal executive officer of a Federal agency includes the chief executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., a Regional Administrator of EPA); or (4) For affected facilities: (i) The designated representative in so far as actions, standards, requirements, or prohibitions under Title IV of the Clean Air Act or the regulations promulgated thereunder are concerned; or (ii) The designated representative for any other purposes under part 60.

* * * * *Page 495 of 527
Small, remote incinerator means an incinerator that combusts solid waste (as that term is defined by the Administrat or in 40 CFR 241) and combusts 3 tons per day or less solid waste and is more than 25 miles driving distance to the nearest municipal solid waste landfill. Soil treatment unit means a unit that thermally treats petroleum

– contaminated soils for the sole pur pose of site remediation. A soil treatment unit may be direct

- fired or indirect fired. A soil treatment unit is not an incinerator, a waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart. Solid waste means the term solid waste as defined in 40 CFR 241.2. Solid waste incineration unit means a distinct operating unit of any facility which combusts any solid waste (as that term is defined by the Administrator in 40 CFR part 241) material from commercial or industrial

es tablishments or the general public (including single and multiple residences, hotels and motels). Such term does not include incinerators or other units required to have a permit under section 3005 of the Solid Waste Disposal Act. The term "solid waste inc ineration unit" does not include (1) Materials recovery facilities (including primary or secondary smelters) which combust waste for the primaryPage 496 of 527

purpose of recovering metals; (2) Qualifying small power production facilities, as defined in section 3(17)(C) of the Federal Power Act (16 U.S.C. 769(17)(C)), or qualifying cogeneration facilities, as defined in section 3(18)(B) of the Federal Power Act (16 U.S.C. 796(18)(B)), which burn homogeneous waste (such as units which burn tires or used oil, but not includ ing refuse

- derived fuel) for the production of electric energy or in the case of qualifying cogeneration facilities which burn homogeneous waste for the production of electric energy and steam or forms of useful energy (such as heat) which are used for ind ustrial, commercial, heating or cooling purposes; or (3) Air curtain incinerators provided that such incinerators only burn wood wastes, yard wastes and clean lumber and that such air curtain incinerators comply with opacity limitations to be established b y the Administrator by rule. Space heater means a unit that meets the requirements of 40 CFR 279.23. A space heater is not an incinerator, a
waste

- burning kiln, an energy recovery unit or a small, remote incinerator under this subpart.

* * * * *
Waste

- burning kiln means a kiln that is heated, in whole or in part, by combusting solid waste (as the term is defined by the Administrator in 40 CFR part 241). SecondaryPage 497 of 527

materials used in Portland cement kilns shall not be deemed to be combusted unless th ey are introduced into the flame zone in the hot end of the kiln or mixed with the precalciner fuel. Wet scrubber means an add

- on air pollution control device that uses an aqueous or alkaline scrubbing liquor to collect particulate matter (including nonvap orous metals and condensed organics) and/or to absorb and neutralize acid gases. 46. Table 1 to subpart DDDD is amended by revising footnotes a and b to read as follows: Table 1 to Subpart DDDD of Part 60 — Model Rule — Increments of Progress and Compliance Schedu les
* * * * *

a Site

- specific schedules can be used at the discretion of the state. b The date can be no later than 3 years after the effective date of state plan approval or December 1, 2005 for CISWI units that commenced construction on or before Novembe r 30, 1999. The date can be no later than 3 years after the effective date of approval of a revised state plan or [ INSERT THE DATE 5 YEARS AFTER THE DATE OF PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ] for CISWI units that commenced construction on or before June 4, 2010.

47. Table 2 to subpart DDDD of part 60 is amended by: a. Revising the table heading. b. Revising the entry for “Hydrogen Chloride”.Page 498 of 527 c. Revising the entry for “Opacity”. d. Revising the entry for “Oxides of nitrogen”. e. Revising fo otnotes a and b. The revisions read as follows: Table 2 to Subpart DDDD of Part 60 — Model Rule —

Emission Limitations That Apply To Incinerators Before [Date to be specified in state plan] b

.

For the air pollutant You must meet

this emission limitation a Using this averaging time And determining

compliance using this method

* * * * * * *
Hydrogen chloride 2 parts per

million by dry volume 3

- run average (For

Method 26, collect a minimum volume of 120 liters per run. For Method 26A, collect a minimum volume of 1 dry standard cubic meter per run) Performance test (Method 26 or 26A at 40 CFR part 60, appendix A

- 8)

* * * * * * * Opacity 10 percent Three 1

- hour blocks consisting of ten 6

- minute average opacity values Performance test (Method 9 at 40 CFR part 60, appendix A

4). Oxides of nitrogen 388 parts per

million by dry volume 3

- run average (1

hour minimum sample time per run) Performance test (Methods 7or 7E at 40 CFR part 60, appendix A

- 4).

* * * * * * *Page 499 of 527

a All emission limitations (except for opacity) are measured at 7 percent oxygen, dry basis at standard conditions. b Applies only to incinerators subject to the CISWI standards through a state plan or the Federal plan prior to June 4, 2010. The date specified in the state plan can be no later than 3 years after the effective date of approval of a revised state plan or [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ].

* * * * * 48. Table 5 to subpart DDDD of part 60 is amended by revising the entry for “Annual Report” to re ad as follows: Table 5 to Subpart DDDD of Part 60 — Model Rule — Summary of Reporting Requirements a Report Due date Contents Reference

* * * * * * *
Annual Report No later than 12

months following the submission of the initial test report. Subsequent reports are to be submitted no more than 12 months following the previous report Name and address

Statement and signature by responsible official Date of report Values for the operating limits Highest recorded 3

- hour average and the lowest 3

- hour average, as applicable, for each operating parameter recorded for the calendar year being reported If a performance test was conducted during the reporting period, the §§60.2765 and 60.2770.Page 500 of 527

Report Due date Contents Reference results of the test If a performance test was not conducted during the reporting period, a statem ent that the requirements of §60.2720(a) were met Documentation of periods when all qualified CISWI unit operators were unavailable for more than 8 hours but less than 2 weeks If you are conducting performance tests once every 3 years consistent with §60.2 720(a), the date of the last 2 performance tests, a comparison of the emission level you achieved in the last 2 performance tests to the 75 percent emission limit threshold required in §60.2720(a) and a statement as to whether there have been any operation al changes since the last performance test that could increasePage 501 of 527

Report Due date Contents Reference emissions.

* * * * * * *

* * * * * 49. Table 6 to subpart DDDD of part 60 is amended by: a. Revising the entry for “Carbon monoxide”. b. Revising the entry for “Lead”.

c. Revising the entry for “Mercury”. d. Revising the entry for “Oxides of nitrogen”. e. Revising the entry for “Sulfur dioxide”. f. Revising footnote a. g. Redesignating footnote c as footnote d. h. Adding footnote c. The revisions read as follows: Table 6 to Subpart DDDD of Part 60 — Model Rule —

Emission Limitations That Apply To Incinerators On and After [Date to be specified in state plan] a

For the air pollutant You must

meet this emission limitation b Using this averaging time And determining

compliance using this method

* * * * * * *

Carbon monoxide 17 parts per

million dry volume 3

- run average (1 hour

minimum sample time per run) Performance test (Method 10 at 40 CFR part 60, appendix A

4).Page 502 of 527

For the air pollutant You must

meet this emission limitation b Using this averaging time And determining

compliance using this method

* * * * * * *

Lead 0.015

milligrams per dry standard cubic meter c 3

- run average

(collect a minimum volume of 2 dry standard cubic meters) Performance test (Method 29 at 40 CFR part 60, appendix A

8). Use ICPMS for the analytical finish. Mercury 0.0048

milligrams per dry standard cubic meter 3

- run average (For

Method 29 an ASTM D6784

- 02 (Reapproved 2008) d , collect a minimum volume of 2 dry standard cubic meters per run. For Method 30B, collect a minimum sample as specified in Method 30B at 40 CFR part 60, appendix A) Performance test (Method 2 9 or 30B at 40 CFR part 60, appendix A

- 8) or ASTM D6784

- 02 (Reapproved 2008) d

.

Oxides of nitrogen 53 parts per

million dry volume 3

- run average (for

Method 7E, 1 hour minimum sample time per run) Performance test (Method 7 or 7E at 40 CFR part 60, appendi x A

- 4).

* * * * * * *

Sulfur dioxide 11 parts per

million dry volume 3

- run average (1 hour

minimum sample time per run) Performance test (Method 6 or 6c at 40 CFR part 60, appendix A

- 4).

* * * * * * *Page 503 of 527

a The date specified in the state plan can be no later than 3 years after the effective date of approval of a revised state plan or [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ].

* * * * *

c If you are conducting stack tests to demonstrate compliance and your perf ormance tests for this pollutant for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing according to §60.2720 if all of the other provision of §60.2720 are met. For all other pollutants that do not contai n a footnote “c”, your performance tests for this pollutant for at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing.
d Incorporated by reference, see §60.17.

50. Table 7 to subpart DDDD of part 60 is revised to read as follows:Page 504 of 527

Table 7 to Subpart DDDD of Part 60 — Model Rule —

Emission Limitations That Apply To Energy Recovery Units After May 20, 2011[Date to be specified in state plan] a

You must meet this emission limitation b

For the air pollutant Liquid/Gas Solids Using this averaging time And

determining compliance using this method Cadmium 0.023

milligrams per dry standard cubic meter Biomass

-

0.0014 milligrams per dry standard cubic meter c 3

- run

average (collect a minimum volume of 2 dry standard cubic meters) Performance

test (Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish. Coal

- 0.0095 milligrams per dry standard cubic meter Carbon monoxide 35 parts

per million dry volume Biomass

–

260 parts per million dry volume 3

- run

average (1 hour minimum sample time per run) Performance

test (Method 10 at 40 CFR part 60, appendix A

- 4). Coal

– 95 parts per million dry volume Dioxins/ furans (total mass basis) 2.9

nanograms per dry standard cubic meter Biomass

-

0.52 nanograms per dry standard cubic meter c 3

- run

average (collect a minimum volume of 4 dry standard Performance

test (Method 23 at 40 CFR part 60, appendix A

- 7).Page 505 of 527

You must meet this emission limitation b

For the air pollutant Liquid/Gas Solids Using this averaging time And

determining compliance using this method Coal

- 5.1 nanograms per dry standard cubic meter c cubic

meter)

Dioxins/ furans (toxic equivalency basis) 0.32

nanograms per dry standard cubic meter Biomass

-

0.12 nanograms per dry standard cubic meter 3

- run

average (collect a minimum volume of 4 dry standard cubic meters) Performance

test (Method 23 at 40 CFR part 60, appendix A

- 7).

Coal

- 0.075 nanograms per dry standard cubic meter c Hydrogen chloride 14 parts

per million dry volume Biomass

-

0.20 parts per million dry volume 3

- run

average (for Method 26, collect a minimum of 120 liters; for Method 26A, collect a minimum volume of 1 dry standard cubic meter ) Performance

test (Method 26 or 26A at 40 CFR part 60, appendix A

- 8). Coal

– 13 parts per million dry volumePage 506 of 527

You must meet this emission limitation b

For the air pollutant Liquid/Gas Solids Using this averaging time And

determining compliance using this method Lead 0.096

milligrams per dry standard cubic meter Biomass

-

0.014 milligrams per dry standard cubic meter c 3

- run

average (collect a minimum volume of 2 dry standard cubic meters) Performance

test (Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish. Coal

- 0.14 milligrams per dry standard cubic meter c Mercury 0.0024

milligrams per dry standard cubic meter Biomass

-

0.0022 milligrams per dry standard cubic meter 3

- run

average (For Method 29 and ASTM D6784

- 02 (Reapproved Performance

test (Method 29 or 30B at 40 CFR part 60, appendix A

- 8) or ASTMPage 507 of 527

You must meet this emission limitation b

For the air pollutant Liquid/Gas Solids Using this averaging time And

determining compliance using this method Coal

- 0.016 milligrams per dry standard cubic meter 2008) d ,

collect a minimum volume of 2 dry standard cubic meters per run. For Method 30B, collect a minimum sample as specified in Method 30B at 40 CFR part 60, appendix A) D6784

- 02

(Rea pproved 2008) d

.

Oxides of nitrogen 76 parts

per million dry volume Biomass

–

290 parts per million dry volume 3

- run

average (for Method 7E, 1 hour minimum sample time per run) Performance

test (Method 7 or 7E at 40 CFR part 60, appendix A

- 4). Coal

– 340 parts per million dry volume Particulate matter filterable 110

milligrams per dry standard cubic meter Biomass

-

11 milligrams per dry standard cubic meter 3

- run

average (collect a minimum volume of 1 dry Performance

test (Method 5 or 29 at 40 CFR part 60, appendix A

- 3 or appendix A

-Page 508 of 527

You must meet this emission limitation b

For the air pollutant Liquid/Gas Solids Using this averaging time And

determining compliance using this method Coal

- 160 milligrams per dry standard cubic meter standard

cubic meter) 8) if the unit

has an annual average heat input rate less than or equal to 250 MMBtu/hr; or PM CPMS (as sp ecified in §60.2710(x)) if the unit has an annual average heat input rate greater than 250 MMBtu/hr. Sulfur dioxide 720 parts

per million dry volume Biomass

–

7.3 parts per million dry volume 3

- run

average (1 hour minimum sample time per run) Performance

test (Method 6 or 6c at 40 CFR part 60, appendix A

- 4). Coal

– 650 parts per million dry volume Fugitive ash Visible

emissions for no more than 5 percent of the hourly observation period Visible

emissions for no more than 5 percent of the hourly observation period Three 1

-

hour observation periods Visible

emission test (Method 22 at 40 CFR part 60, appendix A

- 7).

a The date specified in the state plan can be no later than 3 years after the effective date of approval of a revisedPage 509 of 527

state plan or [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]
b All emission limitations (except for opacity) are measured at 7 percent oxygen, dry basis at standard conditions. For dioxins/furans, you must meet either the total mass basis limit or the toxic equivalency basis limit.

c If you are conducting stack tests to demonstrate compliance and your pe rformance tests for this pollutant for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing according to §60.2720 if all of the other provision of §60.2720 are met. For all other pollutants that do not cont ain a footnote “c”, your performance tests for this pollutant for at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing, with the exception of annual performance tests to certify a CEMS or PM CPMS. d Incorporated by reference, see §60.17.

51. Table 8 to subpart DDDD of part 60 is revised to read as follows:
Table 8 to Subpart DDDD of Part 60 — Model Rule —

Emission Limitations That Apply to Waste - burning Kilns After [Date to be specified in state plan] a

For the air pollutant You must meet

this emission limitation b Using this

averaging time And determining

compliance using this method Cadmium 0.0014

milligrams per dry standard cubic meter c 3

- run average

(collect a minimum volume of 2 dry standard cubic meters) Performance test

(Method 29 at 40 CFR part 60, appendix A

- 8).Page 510 of 527

For the air pollutant You must meet

this emission limitation b Using this

averaging time And determining

compliance using this method Carbon monoxide 110 (long

kilns) / 790 (preheater / precalciner) parts per million dry volume 3

- run average

(1 hour minimum sample time per run) Performance test

(Method 10 at 40 CFR part 60, appendix A

- 4).

Dioxins/furans (total mass basis) 1.3 nanograms

per dry standard cubic meter c 3

- run average

(collect a minimum volume of 4 dry standard cubic meters) Performance te st

(Method 23 at 40 CFR part 60, appendix A

- 7).

Dioxins/furans (toxic equivalency basis) 0.075

nanograms per dry standard cubic meter c 3

- run average

(collect a minimum volume of 4 dry standard cubic meters) Performance test

(Method 23 at 40 CFR part 60, a ppendix A

- 7).

Hydrogen chloride 3.0 parts per

million dry volume c 3

- run average

(collect a minimum volume of 1 dry standard cubic meter) or 30

- day rolling average if HCl CEMS is being used Performance test

(Method 321 at 40 CFR part 63, appendix A of this part) or HCl CEMS if a wet scrubber is not used.

Lead 0.014

milligrams per dry standard cubic meter c 3

- run average

(collect a minimum volume of 2 dry standard cubic meters) Performance test

(Method 29 at 40 CFR part 60, append ix A

- 8).Page 511 of 527

For the air pollutant You must meet

this emission limitation b Using this

averaging time And determining

compliance using this method Mercury 0.011

milligrams per dry standard cubic meter 30

- day

rolling average Mercury CEMS or

sorbent trap monitoring system (performance specification 12A or 12B, respectively, of appendix B of this part.) Oxides of nitrogen 630 parts per

millio n dry volume 3

- run average

(for Method 7E, 1 hour minimum sample time per run) Performance test

(Method 7 or 7E at 40 CFR part 60, appendix A

4).

Particulate matter filterable 4.6 milligrams

per dry standard cubic meter 30

- day

rolling average PM CPMS (as

specified in §60.2710(x))

Sulfur dioxide 600 parts per

million dry volume 3

- run average

(for Method 6, collect a minimum of 20 liters; for Method 6C, 1 hour minimum sample time per run) Performance test

(Method 6 or 6c at 40 CFR part 60, appe ndix A

4).

a The date specified in the state plan can be no later than 3 years after the effective date of approval of a revised state plan or [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ]
b All emission limitation s are measured at 7 percent oxygen, dry basis at standard conditions. For dioxins/furans, you must meet either the total mass basis limit or the toxic equivalency basis limit.Page 512 of 527

c If you are conducting stack tests to demonstrate compliance and your performan ce tests for this pollutant for at least 2 consecutive years show that your emissions are at or below this limit, you can skip testing according to §60.2720 if all of the other provision of §60.2720 are met. For all other pollutants that do not contain a f ootnote “c”, your performance tests for this pollutant for at least 2 consecutive years must show that your emissions are at or 75 percent of this limit in order to qualify for skip testing, with the exception of annual performance tests to certify a CEMS or PM CPMS..

52. Table 9 to subpart DDDD of part 60 is revised to read as follows: Table 9 to Subpart DDDD of Part 60 — Model Rule —

Emission Limitations That Apply to Small, Remote Incinerators After May 20, 2011[Date to be Specified in state plan] a

For the air pollutant You must meet this emission limitation b Using this averaging time And

determining compliance using this method Cadmium 0.95 milligrams per

dry standard cubic meter 3

- run average (collect a minimum volume of 1 dry standard cubic meters per run) Performance

test (Method 29 at 40 CFR part 60, appendix A

- 8).

Carbon monoxide 64 parts per million

dry volume 3

- run average (1 hour minimum sample time per run) Performance

test (Method 10 at 40 CFR part 60, appendix A

- 4). Dioxins/furans (total mass basis) 4,400 nanograms per

dry standard cubic meter b 3

- run average (collect a minimum volume of 1 dry standard cubic meters per run) Performance

test (Method 23 at 40 CFR part 60, appendix A

- 7).Page 513 of 527

For the air pollutant You must meet this emission limitation b Using this averaging time And

determining compliance using this method Dioxins/furans (toxic equivalency basis) 180 nanograms per d ry

standard cubic meter b 3

- run average (collect a minimum volume of 1 dry standard cubic meters) Performance

test (Method 23 at 40 CFR part 60, appendix A

- 7). Fugitive ash Visible emissions for

no more than 5 percent of the hourly observation period Three 1

- hour observation periods Visible

emissions test (Method 22 at 40 CFR part 60, appendix A

- 7). Hydrogen chloride 300 parts per million

dry volume 3

- run average (For Method 26, collect a minimum volume of 120 liters per run. For Method 26A, collect a mini mum volume of 1 dry standard cubic meter per run) Performance

test (Method 26 or 26A at 40 CFR part 60, appendix A

- 8).

Lead 2.1 milligrams per dry

standard cubic meter 3

- run average (collect a minimum volume of 1 dry standard cubic meters) Performance

tes t (Method 29 at 40 CFR part 60, appendix A

- 8). Use ICPMS for the analytical finish.Page 514 of 527

For the air pollutant You must meet this emission limitation b Using this averaging time And

determining compliance using this method Mercury 0.0053 milligrams per

dry standard cubic meter 3

- run average (For Method 29 and ASTM D6784

- 02 (Reapproved 2008) c , collect a minimum volume of 2 dry standard cubic meters per run. For Method 30B, collect a minimum sample as specified in Method 30B at 40 CFR part 60, appendix A) Performance

test (Method 29 or 30B at 40 CFR part 60, appendix A

- 8) or ASTM D6784

- 02 (Reap proved 2008) c

.

Oxides of nitrogen 190 parts per million

dry volume 3

- run average (for Method 7E, 1 hour minimum sample time per run) Performance

test (Method 7 or 7E at 40 CFR part 60, appendix A

- 4).

Particulate matter (filterable) 270 milligrams per dry

standard cubic meter 3

- run average (collect a minimum volume of 1 dry standard cubic meters) Performance

test (Method 5 or 29 at 40 CFR part 60, appendix A

- 3 or appendix A

8).Page 515 of 527

For the air pollutant You must meet this emission limitation b Using this averaging time And

determining compliance using this method Sulfur dioxide 150 parts per million

dry volume 3

- run average (for Method 6, collect a minimum of 20 liters per run; for Method 6C, 1 hour minimum sample time per run) Performance

test (Method 6 or 6c at 40 CFR part 60, appendix A

- 4).

a The date specified in the state plan can be no later than 3 years after the effective date of approval of a revised state plan or [ INSERT THE DATE 5 YEARS AFTER PUBLICATION OF THE FINAL RULE IN THE FEDERAL REGISTER ].
b All emission limitations (except for opacity) are measured at 7 percent oxygen, dry basis at standard conditions. For dioxins/fu rans, you must meet either the total mass basis limit or the toxic equivalency basis limit.

c Incorporated by reference, see §60.17.

PART 241 — SOLID WASTES USED AS FUELS OR INGREDIENTS IN COMBUSTION UNITSPage 516 of 527

53. The authority citation for part 241 continues to read as follows: Authority : 42 U.S.C. 6903, 6912, 7429.

SUBPART A -- General
54. Section 241.2 is amended by:

a. Revising the definition of “clean cellulosic biomass”; b. Revising the definition of “contaminants”;

c. Revising the definition of “establis hed tire collection programs”; and d. Revising the definition of “resinated wood”. §241.2 Definitions.

* * * * * Clean cellulosic biomass means those residuals that are akin to traditional cellulosic biomass, including, but not limited to: agricultural and fo rest

- derived biomass (e.g., green wood, forest thinnings, clean and unadulterated bark, sawdust, trim, tree harvesting residuals from logging and sawmill materials, hogged fuel, wood pellets, untreated wood pallets); urban wood (e.g., tree trimmings, stump s, and related forest

- derived biomass from urban settings); corn stover and other biomass crops used specifically for the production of cellulosic biofuels (e.g., energy cane, other fast growing grasses, byproductsPage 517 of 527

of ethanol natural fermentation processes ); bagasse and other crop residues (e.g., peanut shells, vines, orchard trees, hulls, seeds, spent grains, cotton byproducts, corn and peanut production residues, rice milling and grain elevator operation residues); wood collected from forest fire clearanc e activities, trees and clean wood found in disaster debris, clean biomass from land clearing operations, and clean construction and demolition wood. These fuels are not secondary materials or solid wastes unless discarded. Clean biomass is biomass that do es not contain contaminants at concentrations not normally associated with virgin biomass materials.

* * * * * Contaminants means all pollutants listed in Clean Air Act sections 112(b) or 129(a)(4), with the following three modifications: (1) The definition includes the elements chlorine, fluorine, nitrogen, and sulfur in cases where non

- hazardous secondary materials are burned as a fuel and combustion will result in the formation of hydrogen chloride (HCl), hydrogen fluoride (HF), nitrogen oxides (NOx), or sulfur dioxide (SO 2 ). Chlorine, fluorine, nitrogen, and sulfur are not included in the definition in cases where non

- hazardousPage 518 of 527

secondary materials are used as an ingredient and not as a fuel. (2) The definition does not include the following pol lutants that are either unlikely to be found in non

hazardous secondary materials and products made from such materials or are adequately measured by other parts of this definition: hydrogen chloride (HCl), chlorine gas (Cl 2 ), hydrogen fluoride (HF), nitro gen oxides (NO x ), sulfur dioxide (SO 2 ), fine mineral fibers, particulate matter, coke oven emissions, opacity, diazomethane, white phosphorus, and titanium tetrachloride. (3) The definition does not include m

- cresol, o

cresol, p

- cresol, m

- xylene, o

- xylene , and p

- xylene as individual contaminants distinct from the grouped pollutants total cresols and total xylenes.

* * * * * Established tire collection program means a comprehensive collection system or contractual arrangement that ensures scrap tires are no t discarded and are handled as valuable commodities through arrival at the combustion facility. This can include tires that were not abandoned and were received from the general public at collection program events.

* * * * *Page 519 of 527

Resinated wood means wood pro ducts (containing binders and adhesives) produced by primary and secondary wood products manufacturing. Resinated wood includes residues from the manufacture and use of resinated wood, including materials such as board trim, sander dust, panel trim, and of f

- specification resinated wood products that do not meet a manufacturing quality or standard.

* * * * * SUBPART B - Identification of Non - Hazardous Secondary Materials that are Solid Wastes When Used as Fuels or Ingredients in Combustion Units 55. Amend 241.3 as follows:

a. Revise paragraph (a) and (b). b. Revise the introductory paragraph of paragraph (c), and paragraphs (c)(1), (c)(2), (c)(2)(ii), (iii) and (iv).

c. Revise paragraph (d)(1)(iii).

§241.3 Standards and Procedures for Identification of Non

Hazardous Se condary Materials that are Solid Wastes When Used as Fuels or Ingredients in Combustion Units. (a) Except as provided in paragraph (b) of this section or in §241.4(a) of this subpart, non

- hazardous secondary materials that are combusted are solid wastes,Page 520 of 527

u nless a petition is submitted to, and a determination granted by, the EPA pursuant to paragraph (c) of this section. The criteria to be addressed in the petition, as well as the process for making the non

- waste determination, are specified in paragraph (c) of this section. (b) The following non

- hazardous secondary materials are not solid wastes when combusted: (1) Non

- hazardous secondary materials used as a fuel in a combustion unit that remain within the control of the generator and that meet the legit imacy criteria specified in paragraph (d)(1) of this section. (2) The following non

- hazardous secondary materials that have not been discarded and meet the legitimacy criteria specified in paragraph (d)(1) of this section when used in a combustion unit ( by the generator or outside the control of the generator): (i) [Reserved] (ii) [Reserved] (3) Non

- hazardous secondary materials used as an ingredient in a combustion unit that meet the legitimacy criteria specified in paragraph (d)(2) of this section. (4)Fuel or ingredient products that are used in a combustion unit, and are produced from the processing of discarded non

- hazardous secondary materials and that meetPage 521 of 527

the legitimacy criteria specified in paragraph (d)(1) of this section, with respect to fue ls, and paragraph (d)(2) of this section, with respect to ingredients. The legitimacy criteria apply after the non

- hazardous secondary material is processed to produce a fuel or ingredient product. Until the discarded non

- hazardous secondary material is pr ocessed to produce a non

- waste fuel or ingredient, the discarded non

- hazardous secondary material is considered a solid waste and would be subject to all appropriate federal, state, and local requirements. (c) The Regional Administrator may grant a non

- w aste determination that a non

- hazardous secondary material that is used as a fuel, which is not managed within the control of the generator, is not discarded and is not a solid waste when combusted. This responsibility may be retained by the Assistant Admi nistrator for the Office of Solid Waste and Emergency Response if combustors are located in multiple EPA Regions and the petitioner requests that the Assistant Administrator process the non

- waste determination petition. If multiple combustion units are loc ated in one EPA Region, the application must be submitted to the Regional Administrator for that Region. The criteria and process for making such non

- waste determinations includes the following:Page 522 of 527 (1) Submittal of an application to the Regional Administrato r for the EPA Region where the facility or facilities are located or the Assistant Administrator for the Office of Solid Waste and Emergency Response for a determination that the non

- hazardous secondary material, even though it has been transferred to a th ird party, has not been discarded and is indistinguishable in all relevant aspects from a fuel product. The determination will be based on whether the non

- hazardous secondary material that has been discarded is a legitimate fuel as specified in paragraph ( d)(1) of this section and on the following criteria:

* * * (2) The Regional Administrator or Assistant Administrator for the Office of Solid Waste and Emergency Response will evaluate the application pursuant to the following procedures: (i) * * * (ii) The Regional Administrator or Assistant Administrator for the Office of Solid Waste and Emergency Response will evaluate the application and issue a draft notice tentatively granting or denying the application. Notification of this tentative decision will be published in a newspaper advertisement or radio broadcast in thePage 523 of 527

locality where the facility combusting the non

- hazardous secondary material is located, and be made available on the EPA’s web site. (iii) The Regional Administrator or the Assistant Adm inistrator for the Office of Solid Waste and Emergency Response will accept public comments on the tentative decision for 30 days, and may also hold a public hearing upon request or at his discretion. The Regional Administrator or the Assistant Administrat or for the Office of Solid Waste and Emergency Response will issue a final decision after receipt of comments and after a hearing (if any). If a determination is made that the non

- hazardous secondary material is a non

- waste fuel, it will be retroactive and apply on the date the petition was submitted. (iv) If a change occurs that affects how a non

hazardous secondary material meets the relevant criteria contained in this paragraph after a formal non

- waste determination has been granted, the applicant must re - apply to the Regional Administrator or the Assistant Administrator for the Office of Solid Waste and Emergency Response for a formal determination that the non

- hazardous secondary material continues to meet the relevant criteria and, thus, is not a sol id waste.Page 524 of 527
(d) * * * (1) * * * (iii) The non

- hazardous secondary material must contain contaminants or groups of contaminants at levels comparable in concentration to or lower than those in traditional fuel(s) which the combustion unit is designed to burn. In determining which traditional fuel(s) a unit is designed to burn, persons may choose a traditional fuel that can be or is burned in the particular type of boiler, whether or not the combustion unit is permitted to burn that traditional fuel. In compari ng contaminants between traditional fuel(s) and a non

- hazardous secondary material, persons can use data for traditional fuel contaminant levels compiled from national surveys, as well as contaminant level data from the specific traditional fuel being repl aced. To account for natural variability in contaminant levels, persons can use the full range of traditional fuel contaminant levels, provided such comparisons also consider variability in non

- hazardous secondary material contaminant levels. Such comparis ons are to be based on a direct comparison of the contaminant levels in both the non

- hazardous secondary material and traditional fuel(s) prior to combustion.

* * * * *Page 525 of 527

55. Add §241.4 to read as follows: §241.4 Non

- Waste Determinations for Specific Non

- Ha zardous Secondary Materials When Used as a Fuel. (a) The following non

- hazardous secondary materials are not solid wastes when used as a fuel in a combustion unit: (1) Scrap tires that are not discarded and are managed under the oversight of established ti re collection programs, including tires removed from vehicles and off

specification tires. (2) Resinated wood. (3) Coal refuse that has been recovered from legacy piles and processed in the same manner as currently

generated coal refuse. (4) Dewatered pul p and paper sludges that are not discarded and are generated and burned on

- site by pulp and paper mills that burn a significant portion of such materials where such dewatered residuals are managed in a manner that preserves the meaningful heating value of the materials. (b) Any person may submit a rulemaking petition to the Administrator to identify additional non

- hazardous secondary materials to be listed in paragraph (a) of thisPage 526 of 527

section. Contents and procedures for the sub mittal of the petitions include the following: (1) Each petition must be submitted to the Administrator by certified mail and must include: (i) The petitioner's name and address; (ii) A statement of the petitioner's interest in the proposed action; (iii) A description of the proposed action, including (where appropriate) suggested regulatory language; and (iv) A statement of the need and justification for the proposed action, including any supporting tests, studies, or other information. Where the non

- haza rdous secondary material does not meet the legitimacy criteria, the applicant must explain why such non

- hazardous secondary material should be considered a non

- waste fuel, balancing the legitimacy criteria with other relevant factors. (2) The Administrator will make a tentative decision to grant or deny a petition and will publish notice of such tentative decision, either in the form of an advanced notice of proposed rulemaking, a proposed rule, or a tentative determination to deny the petition, in the Federal Register for written public comment. (3) Upon the written request of any interested person, the Administrator may, at its discretion, hold an informalPage 527 of 527

public hearing to consider oral comments on the tentative decision. A person req uesting a hearing must state the issues to be raised and explain why written comments would not suffice to communicate the person's views. The Administrator may in any case decide on its own motion to hold an informal public hearing. (4) After evaluating a ll public comments the Administrator will make a final decision by publishing in the Federal Register a regulatory amendment or a denial of the petition. (5) The Administrator will grant or deny a petition based on the weight of evidence showing the follow ing: (i) The non

- hazardous secondary material has not been discarded in the first instance and is legitimately used as a fuel in a combustion unit, or if discarded, has been sufficiently processed into a material that is legitimately used as a fuel. (ii) Where any one of the legitimacy criteria in section 241.3(d)(1) is not met, that the use of the non

hazardous secondary material is integrally tied to the industrial production process, that the non

- hazardous secondary material is functionally the same as the comparable traditional fuel, or other relevant factors as appropriate.