99-8950. National Emission Standards for Hazardous Air Pollutants for Source Category: Pulp and Paper Production  

  • [Federal Register Volume 64, Number 69 (Monday, April 12, 1999)]
    [Rules and Regulations]
    [Pages 17555-17565]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 99-8950]
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Part 63
    
    [AD-FRL-6322-8]
    
    
    National Emission Standards for Hazardous Air Pollutants for 
    Source Category: Pulp and Paper Production
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Final rule; interpretation and technical amendments.
    
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    SUMMARY: Under the Clean Air Act (Act), EPA issued a final rule (63 FR 
    18504, April 15, 1998) to reduce hazardous air pollutant (HAP) 
    emissions from the pulp and paper production source category. That rule 
    (known as the Pulp and Paper national emission standard for hazardous 
    air pollutants or pulp and paper NESHAP) is the air component of the 
    integrated air and water rules for the pulp and paper industry (known 
    as the Pulp and Paper Cluster Rules). The rule applies to pulp and 
    paper production processes
    
    [[Page 17556]]
    
    included under Standard Industrial Classification (SIC) code 26.
        This action makes interpretive amendments to certain regulatory 
    text in the 1998 pulp and paper NESHAP. We are making these amendments 
    to make certain that the rule's language reflects our stated intent and 
    also to correct certain inadvertent omissions and minor drafting 
    errors.
    
    DATES: These amendments are effective April 12, 1999. The incorporation 
    by reference of the publication listed in the amendments is approved by 
    the Director of the Federal Register as of April 12, 1999.
    
    ADDRESSES: Docket No. A-92-40, containing the supporting information 
    for the original and amendments to 1998 NESHAP and this action, is 
    available for your inspection and copying between 8:00 a.m. and 5:30 
    p.m., Monday through Friday except for Federal holidays, at the 
    following address: U.S. Environmental Protection Agency, Air and 
    Radiation Docket and Information Center (MC-6102), 401 M Street SW, 
    Washington, DC 20460, or by calling (202) 260-7548. A reasonable fee 
    may be charged for copying.
    
    FOR FURTHER INFORMATION CONTACT: Mr. Stephen Shedd, Emission Standards 
    Division (MD-13), U.S. Environmental Protection Agency, Research 
    Triangle Park, NC 27711; telephone (919) 541-5397 or e-mail at 
    shedd.steve@epa.gov. For questions on compliance and applicability 
    determinations, contact Mr. Seth Heminway, Office of Enforcement and 
    Compliance Assessment (2223A), U.S. Environmental Protection Agency, 
    401 M Street SW, Washington, DC 20460; telephone (202) 564-7017 or e-
    mail at heminway.seth@epa.gov.
    
    SUPPLEMENTARY INFORMATION:
    
        Regulated Entities. Entities potentially regulated by this action 
    include:
    
    ------------------------------------------------------------------------
                                                      Examples of regulated
               Category                SIC code             entities
    ------------------------------------------------------------------------
    Industry.....................              26   Pulp mills and
                                                     integrated mills (mills
                                                     that manufacture pulp
                                                     and paper/paperboard)
                                                     that chemically pulp
                                                     wood fiber.
    ------------------------------------------------------------------------
    
        This table is not exhaustive. It lists the types of entities that 
    we are now aware might be regulated by this action. To determine 
    whether your facility is regulated by this action, you should carefully 
    examine the applicability criteria in part 63, subparts A and S of 
    title 40 of the Code of Federal Regulations.
        Information Contacts. If you have questions about how this action 
    applies to a particular situation or questions about compliance 
    approaches, permitting, enforcement, and rule determinations, please 
    contact the appropriate regional representative below.
        Region I: Greg Roscoe, Chief, Air Pesticides and Toxics Enforcement 
    Office, Office of Environmental Stewardship, U.S. EPA, Region I, JFK 
    Federal Building (SEA), Boston, MA 02203; (617) 565-3221. Technical 
    Contact for Applicability Determination, Susan Lancey, (617) 565-3587, 
    (617) 565-4940 (Fax).
        Region II: Mosey Ghaffari, Air Compliance Branch, U.S. EPA, Region 
    II, 290 Broadway, New York, NY 10007-1866; (212) 637-3925, (212) 637-
    3998 (Fax).
        Region III: Makeba Morris, U.S. EPA, Region III, 3AT10, 1650 Arch 
    Street, Philadelphia, PA 19103; (215) 814-2187.
        Region IV: Lee Page, U.S. EPA, Region IV, Atlanta Federal Center, 
    100 Alabama Street, Atlanta, GA 30303; (404) 562-9131.
        Region V: Christina Prasinos (AE-17J), U.S. EPA, Region V, 77 West 
    Jackson Street, Chicago, IL 60604-3590; (312) 886-6819, (312) 353-8289 
    (Fax).
        Region VI: Michelle Kelly, Air Enforcement Branch (6EN-AA), U.S. 
    EPA, Region VI, Suite 1200, 1445 Ross Avenue, Dallas, TX 75202-2733; 
    (214) 665-7580, (214) 665-7446 (Fax).
        Region VII: Gary Schlicht, Air Permits and Compliance Branch, U.S. 
    EPA, Region VII, ARTD/APCO, 726 Minnesota Avenue, Kansas City, KS 
    66101; (913) 551-7097.
        Region VIII: Tami Thomas-Burton, Air Toxics Coordinator, U.S. EPA, 
    Region VIII, Suite 500, 999 18th Street, Denver, CO 80202-2466; (303) 
    312-6581, (303) 312-6064 (Fax).
        Region IX: Ken Bigos, U.S. EPA, Region IX, A-5, 75 Hawthorne 
    Street, San Francisco, CA 94105; (415) 744-1240.
        Region X: Andrea Wallenweber, Office of Air Quality, U.S. EPA, 
    Region X, OFFICE OF AIR QUALITY PLANNING AND STANDARDS-107, 1200 Sixth 
    Avenue, Seattle, WA 98101; (206) 553-8760, (206) 553-0404 (Fax).
        Technology Transfer Network. The Technology Transfer Network (TTN) 
    is a network of EPA's electronic bulletin boards. The TTN provides 
    information and technology exchange in various areas of air pollution 
    control. Information regarding the basis and purpose of this action, 
    the rule and other relevant documents can be found on the pulp and 
    paper page of EPA's Unified Air Toxics World Wide Web site (UATW) at 
    ``http://www.epa.gov/ttn/uatw/pulp/pulppg.html''. For more information 
    on the TTN, call the HELP line at (919) 541-5384.
        Outline. The technical amendments discussed in this preamble are 
    grouped according to rule sections: emission standards and testing, and 
    monitoring and recordkeeping.
        The preamble is organized as follows:
    
    I. Description of the Amendments and Interpretations
        A. Emission Standards and Testing
        1. May process modifications be used instead of add-on control 
    devices to meet the bleaching system standards (Sec. 63.445)?
        2. Must evaporator feed stage vapor and vacuum system 
    condensates be controlled (Sec. 63.446)?
        3. May a direct injection gas chromatography/flame ionization 
    detection test method be used to measure methanol in liquid streams 
    (Sec. 63.14 and Sec. 63.457(c)(3))?
        4. What are the minimum length and number of test runs required 
    to demonstrate initial compliance (Sec. 63.457)?
        B. Monitoring and Recordkeeping
        1. Must continuous monitors for residence time and concentration 
    be used for some control device alternatives (Sec. 63.453)?
        2. What is the condensate tank ``no detectable'' emissions test 
    frequency (Sec. 63.453)?
        3. What must be done if the tests for condensate tanks indicate 
    emissions (Sec. 63.453)?
        4. May the repair period for closed-vent systems extend beyond 
    15 days as implied in the recordkeeping requirements (Sec. 63.453)?
        5. Do the recordkeeping requirements in subpart RR apply to 
    closed collection systems (Sec. 63.453)?
        C. Typographical Corrections
    II. Administrative Requirements
    III. Legal Authority
    
    I. Description of the Amendments and Interpretations
    
        In today's action, we are amending several sections of the national 
    emission standard for hazardous air pollutants from the pulp and paper 
    industry issued
    
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    on April 15, 1998 (the ``1998 NESHAP'') in title 40, part 63, subpart 
    S. These amendments clarify the intent and correct inadvertent 
    omissions and minor drafting errors in the 1998 NESHAP. This section 
    presents a description of each of the amendments.
    
    A. Emission Standards and Testing
    
        1. May process modifications be used instead of add-on control 
    devices to meet the bleaching system standards (Sec. 63.445)?
        Today's action revises the bleaching system standards (Sec. 63.445) 
    to make clear that process modifications (e.g., 100 percent 
    substitution of chlorine dioxide for chlorine and elimination of 
    hypochlorite) may be used to achieve compliance with the chlorinated 
    HAP emission limits for the bleaching system standards. The 1998 NESHAP 
    requires equipment at subject bleaching stages to be enclosed and 
    vented into a closed-vent system and routed to a control device that 
    meets the specified emission limits (see Sec. 63.445(c)).
        Following promulgation of the 1998 NESHAP, commenters indicated 
    that some mills may be able to achieve the concentration or mass 
    emission limits specified in Sec. 63.445(c) by process modifications 
    without the use of an add-on control device. The commenters stated that 
    as written, the 1998 NESHAP would preclude mills from using process 
    modifications (e.g., 100 percent chlorine dioxide substitution for 
    chlorine and elimination of hypochlorite) because the 1998 NESHAP 
    specifies that the emissions must be captured and routed to a control 
    device.
        We did not intend to prevent you (owner or operator of the mill or 
    reader, as appropriate) from using process modifications to achieve 
    compliance with the standards for chlorinated HAP emissions. The outlet 
    concentration control option was provided in the 1998 NESHAP in 
    response to comments on the December 17, 1996 proposal (Pulp, Paper, 
    and Paperboard Industry--Background Information for Promulgated Air 
    Emission Standards, EPA-453/R-93-050b, pages 6-1 and 6-2) indicating 
    that bleaching systems using high levels of chlorine dioxide 
    substitution could have difficulty meeting a percent reduction limit 
    due to low chlorine concentrations at the process equipment outlet. 
    Also, the mass emission limit for bleaching system vents in the 1998 
    NESHAP was developed in response to comments on the March 8, 1996 
    supplemental Federal Register document (61 FR 9394, second column) 
    indicating that new low-flow rate bleaching system technologies would 
    not be able to meet either the percent reduction or outlet 
    concentration limits (Air Docket A-92-40, item IV-B-29). Therefore, we 
    provided for two standards to allow process modifications without the 
    need for add-on controls. Thus, we do not intend to require enclosures 
    and closed-vent systems for process equipment that achieve compliance 
    using process modifications. A temporary enclosure may be necessary to 
    measure the outlet concentration or mass emission limit during the 
    initial performance test and other compliance demonstrations. It should 
    be noted that the percent reduction alternative emission limit was not 
    included in the amended language since this reduction alternative is 
    inherently based on the use of an add-on control device.
        2. Must evaporator feed stage vapor and vacuum system condensates 
    be controlled (Sec. 63.446)?
        Evaporator feed stage vapor and vacuum system condensates must be 
    controlled. Today's action revises the standards for kraft pulping 
    process condensates in the 1998 NESHAP (Sec. 63.446) to clarify which 
    condensate streams from evaporator system weak liquor feed stages are 
    subject to the standards. Our intention in the 1998 NESHAP was to 
    collect all condensate streams from evaporator system stages where the 
    majority of HAPs are discharged. The discussion in the next four 
    paragraphs is intended to present the reader with a brief description 
    of the evaporation process and provide background for identifying the 
    regulated condensate streams.
        The 1998 NESHAP (Sec. 63.446(b)(3)) specifies that the standards 
    apply to certain kraft pulping process condensate streams. For the 
    evaporator system, the 1998 NESHAP specifies that regulated streams are 
    condensates from ``each evaporator stage where weak liquor is 
    introduced (feed stages).'' The 1998 NESHAP defines the evaporator 
    system as
    
        * * * all equipment associated with increasing the solids 
    content and/or concentrating spent cooking liquor from the pulp 
    washing system including pre-evaporators, multi-effect evaporators, 
    concentrators, and vacuum systems, as well as associated condensers, 
    hotwells, and condensate streams, and any other equipment serving 
    the same function as those previously listed.
    
        Evaporators are used to remove water and volatile contaminants 
    (including HAPs) from weak liquor so that the spent cooking chemicals 
    can be economically recovered and reused. After passing through the 
    evaporator system, concentrated weak liquor (i.e., heavy or strong 
    liquor) is burned in the recovery furnace to recover spent cooking 
    chemicals and heat value contained in organic compounds remaining in 
    the concentrated liquor.
        An evaporator system is a series of interconnected evaporator 
    stages called ``effects'' (thus the industry term ``multi-effect 
    evaporator). Each stage is operated at different pressures to evaporate 
    water and contaminates (HAPs) from weak liquor. The evaporated vapors 
    from one stage heat the next stage. Thus, the condenser of each stage 
    condenses vapors from this and previous stages. These vapors typically 
    do not exit the evaporator system until after entering the next stage 
    or stages. Additionally, the vapors from the weak liquor feed stages 
    have the highest HAP content since this is the initial contact of the 
    weak liquor with heat. Later stages contain less HAPs (unless more weak 
    liquor is fed into the effect) since the majority of HAPs are 
    evaporated from the liquor in the previous stage(s).
        The liquor feed stages in the evaporator system are operated under 
    very high vacuum, usually maintained by steam ejectors or vacuum pumps. 
    The condensates generated by these vacuum devices and their associated 
    condensers also have high HAP content due to volatilization of 
    compounds from the individual liquor feed stages.
        Following issuance of the 1998 NESHAP, we received requests to 
    clarify the 1998 NESHAP language regarding the subject condensates from 
    evaporator system weak liquor feed stages. We intended to include the 
    condensates from weak liquor feed stage vapors and condensates from 
    weak liquor feed stage vacuum systems in the list of subject kraft 
    pulping process condensates specified in the 1998 NESHAP 
    (Sec. 63.446(b)). However, the 1998 NESHAP language used to describe 
    the weak liquor feed stage vapor condensates was not accurate and the 
    1998 NESHAP language omitted weak liquor feed stage vacuum system 
    condensates. Our intent is evident in EPA's analysis of the condensate 
    characterization data (Air Docket A-92-40, item IV-B-9) submitted 
    following proposal, the supplemental Federal Register document (March 
    8, 1996; 61 FR 9383; page 9390, second column), and communications 
    between EPA and industry stakeholders (Air Docket A-92-40, items IV-E-
    65 and IV-E-71) following publication of the proposed rule.
        Accordingly, we are amending Sec. 63.446(b) to clarify that 
    condensates from the vapors and vacuum systems for weak liquor feed 
    stages are subject to the kraft pulping process condensate
    
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    standards. As noted above, the vapors from weak liquor feed stages may 
    not be condensed in some evaporative systems until the following stage 
    or stages. In this case, you must collect and control the condensates 
    from these evaporator stages.
        3. May a direct injection gas chromatography/flame ionization 
    detection test method be used to measure methanol in liquid streams 
    (Sec. 63.14 and Sec. 63.457(c)(3))?
        A specific direct injection gas chromatography/flame ionization 
    detection (GC/FID) test method is being included in today's action as 
    an additional and alternative test method for determining the methanol 
    content of liquid streams. We are amending the test methods and 
    procedures section of the 1998 NESHAP (Sec. 63.457(c)(3)) and the 
    incorporation-by-reference section of the NESHAP general provisions 
    (Sec. 63.14) to incorporate this test method.
        As presented in the April 15, 1998 NESHAP preamble (63 FR 18529), 
    the 1998 NESHAP specifies EPA Reference Method 305 for determining 
    methanol content of liquid streams. As the 1998 NESHAP preamble notes, 
    however, the GC/FID test method developed by the National Council of 
    the Paper Industry for Air and Stream Improvement, Inc. (NCASI) had not 
    been validated using EPA procedures (Method 301). However, we stated in 
    the 1998 NESHAP preamble that if we approve this method using the 
    Method 301 validation procedures, then the NCASI method would be 
    approved as either an alternative or a replacement for Method 305 with 
    a supplemental Federal Register document.
        On February 18, 1998, the director of EPA's Emissions, Monitoring 
    and Analysis Division (EMAD) approved NCASI's test method as an 
    alternative test method to EPA Method 305 for measuring methanol in 
    condensates. Since clarifying amendments to the 1998 NESHAP are being 
    published in today's action, we decided to incorporate this NCASI test 
    method into the 1998 NESHAP language to ease implementation and 
    referencing.
        Either EPA Method 305 or the NCASI method may be used for measuring 
    the methanol content of liquid streams. However, the NCASI test method 
    has been validated for only one HAP compound: methanol. So while this 
    NCASI method can be used in other parts of the 1998 NESHAP where 
    methanol is specified as a surrogate for HAP, this method may not be 
    used for certain test requirements for biological treatment where we 
    require a total measurement of all HAP compounds (not just methanol).
        4. What are the minimum length and number of test runs required to 
    demonstrate initial compliance (Sec. 63.457)?
        For the initial performance tests, a minimum of three 1-hour test 
    runs must be conducted during which either an integrated sample or four 
    grab samples must be taken. Today's action clarifies the terminology 
    used for test runs and samples in the vent sampling requirements in 
    Sec. 63.457(b)(5) and (b)(6) and adds the 1-hour test length 
    specification to the liquid sampling requirements in Sec. 63.457(c)(3).
        Commenters to the 1998 NESHAP indicated that the language regarding 
    the minimum length of the test run and number of test runs required by 
    the NESHAP was unclear. In reviewing the 1998 NESHAP, we found two 
    sections where clarification of the terminology used to describe test 
    runs and samples is needed. Additionally, we inadvertently omitted 
    specifying the minimum test run length for liquid sampling. The 
    following discussion identifies the 1998 NESHAP language in question 
    and the amendments in today's action to correct the rule language.
        Performance tests are used to demonstrate compliance with a 
    relevant standard based on conditions that reflect normal operations. 
    As specified in the performance testing requirements section of the 
    NESHAP general provisions (Sec. 63.7(e)(1)):
    
        Performance tests shall be conducted under such conditions as 
    the Administrator specifies to the owner or operator based on 
    representative performance (i.e., performance based on normal 
    operating conditions) of the affected source.
    
        The NESHAP general provisions (Sec. 63.7(e)(3)) also specify:
    
        * * * For the purpose of determining compliance with a relevant 
    standard, the arithmetic mean of the results of the three runs shall 
    apply.
    
        For pulping and bleaching system vent standards, the 1998 NESHAP 
    specifies in the test methods and procedures section 
    (Sec. 63.457(b)(5)) that owners or operators must collect a minimum of 
    three samples that are representative of normal conditions and average 
    the results to determine vent gas pollutant concentrations. However, 
    the terminology used in the 1998 NESHAP for vent sampling was incorrect 
    since the term ``samples'' was used instead of the phrase ``test 
    runs.'' Section 63.457(b)(5) should have used the phrase ``test runs'' 
    since the subsequent language in Sec. 63.457(b)(6) refers the minimum 
    sampling time for the test runs and also specifies the number of 
    samples to be taken during the run. Therefore, we are changing the word 
    ``samples'' to ``test runs'' in Sec. 63.457(b)(5). Also, for additional 
    clarity, we are adding the word ``test'' in front of the word ``run'' 
    in Sec. 63.457(b)(6).
        For liquid stream sampling, the 1998 NESHAP specifies in the test 
    methods and procedures section (Sec. 63.457(c)(3)) that owners or 
    operators must collect a minimum of three samples that are 
    representative of normal conditions and average the results to 
    determine liquid stream total HAP or methanol concentrations. In 
    drafting the 1998 NESHAP, we inadvertently omitted the minimum sampling 
    time of each test run for liquid stream sampling. Although the liquid 
    stream test methods referenced in the 1998 NESHAP (Sec. 63.457(c)(3)(i) 
    and (c)(3)(ii)) are batch tests, we intended for the samples (either 
    grab samples or composite samples) to be collected over a minimum 
    period of 1 hour. Our intent for liquid stream sampling length is found 
    in the test methods and procedures section (Sec. 63.451(i)(2)(iv)) of 
    the December 17, 1993 proposal (63 FR 66181). Today's action corrects 
    this omission and inserts the 1-hour sampling period language into 
    Sec. 63.457(c)(3).
        Today's action amends the 1998 NESHAP to clarify that the initial 
    performance tests for vent and liquid streams must consist of a minimum 
    of three test runs and that the minimum sampling time for each test run 
    is 1 hour. However, additional performance tests or longer sampling 
    times may be needed to demonstrate compliance under normal operating 
    conditions for equipment systems that have multiple operating scenarios 
    or modes.
        With regard to continuous compliance, the 1998 NESHAP did not 
    specify frequencies and averaging periods for continuous monitoring 
    since we intended to provide you flexibility in developing appropriate 
    continuous monitoring strategies. As specified in the monitoring 
    section of the 1998 NESHAP (Sec. 63.453(n)(4)), you must provide for 
    the Administrator's approval the rationale for the selected operating 
    parameter value, monitoring frequency, and averaging time. Since we 
    have delegated this authority to State agencies, you have the 
    flexibility to work out the specifics of continuous monitoring 
    strategies with your permitting agencies. Additionally, we continue to 
    hold workshops to discuss and identify continuous monitoring strategies 
    with stakeholders.
    
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    B. Monitoring and Recordkeeping
    
        1. Must continuous monitors for residence time and concentration be 
    used for some control device alternatives (Sec. 63.453)?
        Thermal oxidizers meeting the outlet concentration standard may 
    continuously monitor either combustion temperature or outlet 
    concentration. Today's action clarifies the monitoring requirements in 
    the 1998 NESHAP (Sec. 63.453(b)) for thermal oxidizers used to control 
    pulping system vent emissions. Additionally, today's action clarifies 
    that residence time is an operating parameter to be demonstrated 
    initially and when process changes occur that will impact residence 
    time.
        The 1998 NESHAP (Sec. 63.443(d)) contains the following alternative 
    emission limits for thermal oxidizers:
    
        (1) Reduce total HAP emissions by 98 percent or more by weight;
        (2) Reduce the total HAP concentration at the outlet of the 
    thermal oxidizer to 20 parts per million or less by volume (ppmv), 
    corrected to 10 percent oxygen on a dry basis;
        (3) Reduce total HAP emissions using a thermal oxidizer designed 
    and operated at a minimum temperature of 871  deg.C (1600  deg.F) 
    and a minimum residence time of 0.75 seconds; or
        (4) Reduce total HAP emissions using a boiler, lime kiln, or 
    recovery furnace by introducing the HAP emission stream with the 
    primary fuel or into the flame zone.
    
        The monitoring requirements for thermal oxidizers (Sec. 63.453(b)) 
    specify that a continuous monitoring system (CMS) must be operated to 
    measure the temperature in the firebox or in the ductwork immediately 
    downstream of the firebox and before any substantial heat exchange 
    occurs. This applies to each thermal oxidizer used to comply with the 
    percent reduction, outlet concentration, and minimum design 
    specification requirements. When complying with the outlet 
    concentration or the minimum design requirements, you must monitor for 
    the parameter specified and for the temperature and concentration 
    limits specified.
        In drafting the 1998 NESHAP, we intended that continuous compliance 
    with each emission limit alternative (with the exception of using a 
    boiler, lime kiln, or recovery furnace) be demonstrated by monitoring 
    only the thermal oxidizer operating temperature as evidenced by the 
    December 17, 1993 proposal (Sec. 63.453(b)) and the 1998 NESHAP 
    preamble (63 FR 18511). As an option for monitoring temperature, we 
    intended to allow you to continuously monitor only the thermal oxidizer 
    outlet concentration if you are complying with the 20 ppmv outlet 
    concentration emission limit (Sec. 63.443(d)(2)). However, the language 
    in Sec. 63.453(b) of the 1998 NESHAP is unclear. It incorrectly 
    indicates that owners or operators complying with the 20 ppmv outlet 
    concentration must continuously monitor the outlet concentration and 
    temperature, and that owners or operators complying with the 
    temperature and residence time specifications must continuously monitor 
    the thermal oxidizer operating temperature, residence time, and HAP 
    concentration.
        Today's action amends the 1998 NESHAP to achieve the original 
    intent as stated in the preamble (63 FR 18511). The amendment clarifies 
    that mills that comply with the 20 ppmv emission limit must monitor 
    either HAP concentration or temperature, but not both. The amendment 
    also clarifies that monitoring of operating temperature is the only 
    monitoring parameter requirement for demonstrating continuous 
    compliance with the minimum temperature and residence time 
    specification (Sec. 63.443(d)(3)). For the residence time requirement, 
    you must demonstrate that the minimum residence time is being achieved 
    (along with the operating temperature) and provide documentation to 
    demonstrate this in the notification of compliance status. The minimum 
    residence time must also be performed if the vent gas flow rate sent to 
    the thermal oxidizer is increased above the flow rate established in 
    the notification of compliance status.
        2. What is the condensate tank ``no detectable'' emissions test 
    frequency (Sec. 63.453)?
        Today's action amends the monitoring requirements for closed 
    collection systems (Sec. 63.453(l)) to clarify tests to determine ``no 
    detectable'' emissions are to be conducted initially and annually.
        In the standards for kraft pulping process condensates 
    (Sec. 63.446(d)(2)(i)), the 1998 NESHAP specifies that condensate tanks 
    used in the closed collection system for regulated condensate streams 
    must be operated and designed with no detectable emissions as indicated 
    by an instrument reading of less than 500 parts per million above 
    background using EPA Reference Method 21. However, we inadvertently 
    neglected to specify the schedule for conducting this Method 21 test. 
    We intended this compliance monitoring to be conducted at the same 
    frequency as that required for the closed-vent system Method 21 tests 
    since the same test equipment and personnel are being used. Closed-vent 
    systems are required to be tested initially and annually 
    (Sec. 63.453(k)(3)). Today's amendment specifies that the ``no 
    detectable'' emissions tests for closed collection systems must also be 
    performed initially and annually.
        For additional clarity and to better incorporate additional changes 
    being made in today's action (see sections I.B.3 and I.B.5 of this 
    preamble), we restructured the NESHAP paragraph where the monitoring 
    requirements for closed collection systems are specified 
    (Sec. 63.453(l)). We are changing the structure of Sec. 63.453(l) to 
    parallel that used for the enclosure and closed-vent system monitoring 
    requirements (Sec. 63.453(k)). Consequently, several subsections are 
    being added to Sec. 63.453(l). These revisions are contained in amended 
    Sec. 63.453(l)(2). Additional changes to Sec. 63.453(l) are discussed 
    in sections I.B.3 and I.B.5 of this preamble.
        3. What must be done if the tests for condensate tanks indicate 
    emissions (Sec. 63.453)?
        We are amending the closed collection system monitoring 
    requirements (Sec. 63.453(l)) to clarify that pulp and paper mills must 
    comply with the repair schedule requirements of subpart RR of this part 
    (Sec. 63.964(b)) if condensate tank ``no detectable'' emissions tests 
    indicate emissions. All detectable emissions measured on condensate 
    tanks must be repaired according to the repair schedule in subpart RR 
    of this part.
        The kraft pulping process condensate standards of the 1998 NESHAP 
    (Sec. 63.446(d)(2)(i)) state that condensate tanks used in the closed 
    collection system must be designed and operated with no detectable 
    emissions. The 1998 NESHAP (Sec. 63.453(l)) specifies that closed 
    collection systems (which include condensate tanks) must meet the 
    inspection and monitoring requirements of subpart RR of this part 
    (Sec. 63.964) which provide a repair schedule. Section 63.964(b) of 
    subpart RR of this part states:
    
        (b) The owner or operator shall repair all detected defects as 
    follows:
        (1) The owner or operator shall make first efforts at repair of 
    the defect no later than 5 calendar days after detection and repair 
    shall be completed as soon as possible but no later than 15 calendar 
    days after detection except as provided in paragraph (b)(2) of this 
    section.
        (2) Repair of a defect may be delayed beyond 15 calendar days if 
    the owner or operator determines that repair of the defect requires 
    emptying or temporary removal from service of the individual drain 
    system and no alternative capacity is available at the facility site 
    to accept the wastewater normally managed in the individual drain 
    system. In this case, the owner or operator shall repair the defect 
    at the next time the process or unit that is generating the 
    wastewater managed in
    
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    the individual drain system stops operation. Repair of the defect 
    shall be completed before the process or unit resumes operation.
    
        We inadvertently omitted rule text in the 1998 NESHAP specifying 
    that you must follow the repair schedule if the condensate tank tests 
    indicate emissions. Our intent is evident since we included the repair 
    schedule for defects in the continuous monitoring section 
    (Sec. 63.453(f)(3)) of the December 17, 1993 proposal (58 FR 66182). In 
    today's action, we are clarifying the 1998 NESHAP by explicitly 
    specifying that the repair schedule requirements in subpart RR of this 
    part (Sec. 63.964(b)(1) and (b)(2)) are triggered if the condensate 
    tank ``no detectable'' emissions tests identify emissions.
        As discussed previously in section I.B.2 of this preamble, the 
    structure of the paragraph in the 1998 NESHAP specifying the monitoring 
    requirements for closed collection systems (Sec. 63.453(l)) is being 
    revised to parallel that used for the enclosure and closed-vent system 
    monitoring requirements (Sec. 63.453(k)). As part of that 
    restructuring, the revisions discussed in today's action regarding the 
    repair schedule specified in subpart RR of this part for both 
    condensate tanks and the rest of the closed collection system are 
    contained in Sec. 63.453(l)(3). One additional change to Sec. 63.453(l) 
    is discussed in section I.B.5 of this preamble.
        4. May the repair period for closed-vent systems extend beyond 15 
    days as implied in the recordkeeping requirements (Sec. 63.453)?
        Corrective actions or repairs of closed-vent system defects or 
    leaks, under certain circumstances, may extend beyond the 15 calendar 
    days specified in the 1998 NESHAP. Today's action corrects a drafting 
    oversight in the requirements for inspection and repair of enclosures 
    and closed-vent systems (Sec. 63.453(k)(6)(ii)).
        In the monitoring requirements for enclosures and closed-vent 
    systems (Sec. 63.453(k)(6)(ii)), the 1998 NESHAP specifies that 
    corrective actions or repairs for enclosure and closed-vent system 
    defects and leaks must be completed no later than 15 calendar days 
    after the problem is identified. However, certain equipment may require 
    more than the 15 calendar days to repair. It is not our intent to 
    create a violation in cases where the failure to repair is beyond the 
    control of the owner or operator, or where immediate repair would 
    create greater emissions. The Agency's intent is evident since specific 
    recordkeeping requirements (Sec. 63.454(b)(8) through (b)(10)) are 
    triggered when repairs or corrective actions require more than 15 
    calendar days to complete indicating that the rule contemplates 
    situations where it will take longer than 15 days to complete repairs. 
    For these cases, owners or operators must record the reason for the 
    delay in repair, the expected date of successful repair, and the actual 
    date of successful repair. If the reasons for delaying the repair meet 
    the conditions specified in the rule and the recordkeeping requirements 
    are met, then repairs or corrective actions that require longer than 15 
    calendar days are allowed.
        Today's action adds clarifying sentences to the monitoring 
    requirements for enclosures and closed-vent systems 
    (Sec. 63.453(k)(6)(ii)). Delays in corrective actions or repairs beyond 
    15 calendar days are allowed in cases where the corrective actions or 
    repairs are technically infeasible without a process unit shutdown or 
    where the emissions resulting from immediate repair would be greater 
    than the emissions likely to result from the delay of repair. This 
    language addressing corrective actions and repairs is consistent with 
    provisions in the national emission standards, specifically for oil-
    water separators and organic water separators (Sec. 63.1047(d)(2) of 
    subpart VV of this part) and in the national emission standards for 
    organic hazardous air pollutants for equipment leaks (Sec. 63.172(i) of 
    subpart H of this part).
        5. Do the recordkeeping requirements in subpart RR apply to closed 
    collection systems (Sec. 63.453)?
        The recordkeeping requirements of subpart RR of this part do not 
    apply to closed collection systems. Today's action amends the 
    monitoring requirements for closed collection systems (Sec. 63.453(l)) 
    to clarify that the recordkeeping requirements of subpart RR of this 
    part are not in effect. Certain provisions of the national emission 
    standards for individual drain systems (subpart RR of this part) are 
    referenced in the 1998 NESHAP for convenience. In developing the 1998 
    NESHAP, we identified areas of overlap between subpart RR of this part 
    and the pulp and paper NESHAP. However, additional overlap was 
    identified since promulgation.
        The closed collection system monitoring requirements in the 1998 
    NESHAP (Sec. 63.453(l)) specify that each closed collection system must 
    comply with the inspection and monitoring requirements of subpart RR of 
    this part (Sec. 63.964). However, the monitoring requirement section of 
    subpart RR of this part contains references (Sec. 63.964(a)(1)(vi) and 
    (b)(3)) to the recordkeeping requirements of subpart RR of this part 
    (Sec. 63.965).
        Today's action amends the pulp and paper 1998 NESHAP to specify 
    that owners or operators are required to comply only with the closed 
    collection system recordkeeping requirements specified in the pulp and 
    paper 1998 NESHAP (Sec. 63.454) since the recordkeeping requirements 
    specified in subpart RR of this part are redundant. As discussed 
    previously in sections I.B.2 and I.B.3 of this preamble, the structure 
    of the paragraph in the 1998 NESHAP specifying the monitoring 
    requirements for closed collection systems (Sec. 63.453(l)) is being 
    revised to parallel that used for the enclosure and closed-vent system 
    monitoring requirements (Sec. 63.453(k)). The revisions to identify the 
    overlap between the monitoring requirements of subpart RR of this part 
    and the pulp and paper NESHAP discussed in this section are contained 
    in Sec. 63.453(l)(1)(i).
    
    C. Typographical Corrections
    
        Minor drafting errors and inadvertent omissions were identified in 
    the 1998 NESHAP after promulgation. Today's action makes the following 
    corrections:
         Changes ``HAP's'' to ``HAPs'' in the following sections: 
    the definition of process wastewater treatment system (Sec. 63.441); 
    the standards for kraft pulping process condensates section 
    (Sec. 63.446(e)(3)); and the test methods and procedures section 
    (Sec. 63.457(f)(1) and Sec. 63.457(h)).
         Changes the word ``sources'' to ``source'' in the 
    standards for the pulping system at kraft, soda, and semi-chemical 
    processes (Sec. 63.443(b)(1)).
         Changes the word ``uses'' to ``use'' in the standards for 
    the bleaching system (Sec. 63.445(a)(2)).
         Corrects text for the closed collection system design 
    specifications in the standards for kraft pulping process condensates. 
    In Sec. 63.446(d)(l), delete the word ``for'', changes the words 
    ``closed'' and ``vent'' to ``closed-vent'', and deletes the phrase 
    ``Sec. 63.693 as specified in.''
         Corrects text for the clean condensate alternative 
    standards (Sec. 63.447). In Sec. 63.447(e)(2), delete the word 
    ``that'', add the word ``and'' at the end of the paragraph in 
    Sec. 63.447(g)(1)(ii), and add the word ``of'' to Sec. 63.447(g)(2) 
    between the words ``requirements'' and ``paragraphs.''
         Corrects wording for the standards for enclosures and 
    closed-vent systems (Sec. 63.450). In the Sec. 63.450(b), add the word 
    ``in'' before ``Sec. 63.45(e).''
         Corrects wording for test methods and procedures section 
    (Sec. 63.457). In Sec. 63.457(b)(5)(ii)(C), change the word
    
    [[Page 17561]]
    
    ``project'' to ``protect.'' In Sec. 63.457(b)(5)(ii)(E)(7), change the 
    word ``an'' to ``a.'' In Sec. 63.457(c)(2), the change the semicolon at 
    the end of the paragraph to a period. Add the word ``an'' to 
    Sec. 63.457(c)(4)(i) between the words ``into'' and ``Erlenmeyer'' in 
    the first sentence of the paragraph.
         Changes the acronym ``CEM's'' to ``CEMs'' in the comment 
    column for the reference Sec. 63.8(f)(6) in table 1 of the 1998 NESHAP 
    (general provisions applicability to subpart S).
    
    II. Administrative Requirements
    
    A. Docket
    
        The docket is an organized and complete file of all the information 
    considered by EPA in the development of this rulemaking. The docket is 
    a dynamic file, because material is added throughout the rulemaking 
    development. The docketing system is intended to allow members of the 
    public and industries involved to readily identify and locate documents 
    so that you can effectively participate in the rulemaking process. 
    Along with the proposed and promulgated standards and their preambles, 
    the contents of the docket except for certain interagency documents 
    will serve as the record in case of judicial review. (See section 
    307(d)(7)(A) of the Act.)
    
    B. Paperwork Reduction Act
    
        The EPA already submitted the information requirements of the 1998 
    NESHAP to the Office of Management and Budget (OMB) on April 27, 1998 
    for approval under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. 
    An Information Collection Request (ICR) document has been prepared by 
    EPA (ICR No. 1657.03), and a copy may be obtained from Sandy Farmer, 
    Office of Policy, Planning, and Evaluation Regulatory Information 
    Division; U.S. Environmental Protection Agency (2137); 401 M Street SW, 
    Washington, DC 20460 or by calling (202) 260-2740. The information 
    requirements are not effective until OMB approves them.
        Today's amendments to the NESHAP will have no impact on the 
    information collection burden estimates made previously. The amendments 
    clarify the intent of the 1998 NESHAP and correct inadvertent omissions 
    and minor drafting errors in the 1998 NESHAP. Consequently, the ICR has 
    not been revised.
    
    C. Executive Order 12866: ``Significant Regulatory Action'' 
    Determination
    
        Under Executive Order 12866, EPA must determine whether the 
    regulatory action is ``significant'' and, therefore, subject to OMB 
    review and the requirements of the Executive Order. The order defines 
    ``significant'' regulatory action as one that is likely to lead to a 
    rule that may:
        (1) Have an annual effect on the economy of $100 million or more or 
    adversely affect in a material way the economy, a sector of the 
    economy, public health or safety in State, local, or tribal governments 
    or communities;
        (2) Create a serious inconsistency or otherwise interfere with an 
    action taken or planned by another agency;
        (3) Materially alter the budgetary impact of entitlements, grants, 
    user fees, or loan programs, or the rights and obligations of 
    recipients thereof; or
        (4) Raise novel legal or policy issues arising out of legal 
    mandates, the President's priorities, or the principles set forth in 
    the Executive Order.
        The NESHAP published on April 15, 1998 was considered significant 
    under Executive Order 12866, and EPA accordingly prepared a regulatory 
    impact analysis (RIA). The amendments published today clarify the 
    intent of the 1998 NESHAP and correct inadvertent omissions and minor 
    drafting errors in the 1998 NESHAP. The OMB evaluated this action and 
    determined it to be nonsignificant; thus, it did not require OMB 
    review.
    
    D. Regulatory Flexibility Act
    
        The Regulatory Flexibility Act (RFA) generally requires an agency 
    to conduct a regulatory flexibility analysis of any rule subject to 
    notice and comment rulemaking unless the agency certifies that the rule 
    will not have a significant economic impact on a substantial number of 
    small entities. Small entities include small businesses, small not-for-
    profit enterprises, and small governmental jurisdictions. The EPA 
    determined that it is not necessary to prepare a regulatory flexibility 
    analysis in connection with this action. These amendments would not 
    result in increased impacts to small entities and the changes to the 
    1998 NESHAP in today's action do not add new control requirements.
    
    E. Unfunded Mandates Reform Act
    
        Under section 202 of the Unfunded Mandates Reform Act of 1995 
    (``Unfunded Mandates Act''), EPA must prepare a budgetary impact 
    statement to accompany any proposed or final rule that includes a 
    Federal mandate that may result in estimated costs to State, local, or 
    tribal governments in the aggregate, or to the private sector, of $100 
    million or more. Under section 205, EPA must select the most cost-
    effective and least burdensome alternative that achieves the objectives 
    of the rule and is consistent with statutory requirements. Section 203 
    requires EPA to establish a plan for informing and advising any small 
    governments that may be significantly or uniquely impacted by the rule.
        The EPA has determined that the action promulgated today does not 
    include a Federal mandate that may result in estimated costs of $100 
    million or more to either State, local, or tribal governments in the 
    aggregate or to the private sector. Therefore, the requirements of the 
    Unfunded Mandates Act do not apply to today's action.
    
    F. Executive Order 12875: Enhancing Intergovernmental Partnerships
    
        Under Executive Order 12875, EPA may not issue a regulation that is 
    not required by statute and that creates a mandate upon a State, local, 
    or tribal government unless the Federal government provides the funds 
    necessary to pay the direct compliance costs incurred by those 
    governments or EPA consults with those governments. If EPA complies by 
    consulting, Executive Order 12875 requires EPA to provide to the OMB a 
    description of the extent of EPA's prior consultation with 
    representatives of affected State, local, and tribal governments, the 
    nature of their concerns, copies of any written communications from the 
    governments, and a statement supporting the need to issue the 
    regulation. In addition, Executive Order 12875 requires EPA to develop 
    an effective process permitting elected officials and other 
    representatives of State, local, and tribal governments ``to provide 
    meaningful and timely input in the development of regulatory proposals 
    containing significant unfunded mandates.''
        While the final rule published on April 15, 1998 (1998 NESHAP) does 
    not create mandates upon State, local, or tribal governments, EPA 
    involved State and local governments in its development. Because 
    today's action clarifies the intent of the 1998 NESHAP and corrects 
    inadvertent omissions and minor drafting errors, today's action does 
    not create a mandate upon State, local, or tribal governments.
    
    G. Applicability of Executive Order 13045: Protection of Children From 
    Environmental Health Risks and Safety Risks
    
        Executive Order 13045 applies to any rule that EPA determines (1) 
    is economically significant as defined under Executive Order 12866, and 
    (2) the environmental health or safety risk addressed by the rule has a 
    disproportionate effect on children. If
    
    [[Page 17562]]
    
    the regulatory action meets both criteria, EPA must evaluate the 
    environmental health or safety effects of the planned rule on children 
    and explain why the planned regulation is preferable to other 
    potentially effective and reasonably feasible alternatives considered 
    by the Agency.
        The EPA interprets Executive Order 13045 as applying only to those 
    regulatory actions that are based on health or safety risks, such that 
    the analysis required under section 5-501 of the order has the 
    potential to influence the regulation. This rule falls into that 
    category only in part: the minimum rule stringency is set according to 
    a congressionally mandated, technology-based lower limit called the 
    ``floor,'' while a decision to increase the stringency beyond this 
    floor can be partly based on risk considerations.
        No children's risk analysis was performed for the 1998 NESHAP 
    rulemaking because no alternative technologies exist that would provide 
    greater stringency at a reasonable cost, and therefore the results of 
    any such analysis would have no impact on the stringency decision. 
    Today's action is not subject to Executive Order 13045 because it does 
    not involve decisions on environmental health risks or safety risks 
    that may disproportionately affect children.
    
    H. Executive Order 13084: Consultations and Coordination With Indian 
    Tribal Governments
    
        Under Executive Order 13084, EPA may not issue a regulation that is 
    not required by statute, that significantly or uniquely affects the 
    communities of Indian tribal governments, and that imposes substantial 
    direct compliance costs on those communities unless the Federal 
    government provides the funds necessary to pay the direct compliance 
    costs incurred by the tribal governments or if EPA consults with those 
    governments. If EPA complies by consulting, Executive Order 13084 
    requires EPA to provide to the OMB, in a separately identified section 
    of the preamble to the rule, a description of the extent of EPA's prior 
    consultation with representatives of affected tribal governments, a 
    summary of the nature of their concerns, and a statement supporting the 
    need to issue the regulation. In addition, Executive Order 13084 
    requires EPA to develop an effective process permitting elected and 
    other representatives of Indian tribal governments ``to provide 
    meaningful and timely input in the development of regulatory policies 
    on matters that significantly or uniquely affect their communities.''
        Today's action does not significantly or uniquely affect the 
    communities of Indian tribal governments. The final rule published on 
    April 15, 1998 (1998 NESHAP) does not create mandates upon tribal 
    governments. Because today's action clarifies the intent of the 1998 
    NESHAP and corrects inadvertent omissions and minor drafting errors, 
    today's action does not create a mandate on tribal governments. 
    Accordingly, the requirements of section 3(b) of Executive Order 13084 
    do not apply to this action.
    
    I. National Technology Transfer and Advancement Act
    
        Section 12(d) of the National Technology Transfer and Advancement 
    Act (NTTAA) directs all Federal agencies to use voluntary consensus 
    standards instead of government-unique standards in their regulatory 
    activities unless to do so would be inconsistent with applicable law or 
    otherwise impractical. Voluntary consensus standards are technical 
    standards (e.g., materials specifications, test methods, sampling 
    procedures, business practices) that are developed or adopted by one or 
    more voluntary consensus standards bodies. Examples of organizations 
    generally regarded as voluntary consensus standards bodies include the 
    American Society for Testing and Materials (ASTM), the National Fire 
    Protection Association (NFPA), and the Society of Automotive Engineers 
    (SAE). The NTTAA requires Federal agencies like EPA to provide 
    Congress, through the OMB, with explanations when an agency decides not 
    to use available and applicable voluntary consensus standards.
        Although this action does not involve any new technical standards, 
    today's action does include the incorporation by reference of an 
    alternative test method. The method was developed by NCASI, however, 
    NCASI is not a voluntary consensus standards body. No voluntary 
    consensus standards were identified for measuring methanol in pulping 
    process condensates.
    
    J. Submission to Congress and the Comptroller General
    
        The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
    Small Business Regulatory Enforcement Fairness Act 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 Congress 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 publication 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). These technical amendments will be effective April 12, 1999.
    
    K. Immediate Effective Date
    
        The EPA is making today's action effective immediately. The EPA has 
    determined that the rule amendments being made in today's action are 
    interpretive rules which are not subject to notice and comment 
    requirements. The EPA has also determined that this rule may be made 
    effective in less than 30 days because it is interpretive and relieves 
    restrictions. See 5 U.S.C. 553(d) (1) and (2).
    
    III. Legal Authority
    
        These regulations are amended under the authority of sections 112, 
    114, and 301 of the Clean Air Act, as amended (42 U.S.C. sections 7412, 
    7414, and 7601).
    
    List of Subjects in 40 CFR Part 63
    
        Environmental protection, Administrative practice and procedure, 
    Air pollution control, Incorporation by reference, Intergovernmental 
    relations.
    
        Dated: March 31, 1999.
    Robert Brenner,
    Acting Assistant Administrator, OAR.
    
        For the reasons set out in the preamble, title 40, Chapter I of the 
    Code of Federal Regulations is amended as follows:
    
    PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS 
    FOR SOURCE CATEGORIES
    
        1. The authority citation for part 63 continues to read as follows:
    
        Authority: 42 U.S.C. 7401, et seq.
    
    Subpart A--General Provisions
    
        2. Amend Sec. 63.14 by adding paragraph (f) to read as follows:
    
    
    Sec. 63.14  Incorporations by reference.
    
    * * * * *
        (f) The following material is available from the National Council 
    of the Paper Industry for Air and Stream Improvement, Inc. (NCASI), P. 
    O. Box 133318, Research Triangle Park, NC 27709-3318 or at http://
    www.ncasi.org: NCASI Method DI/MEOH-94.02, Methanol in Process Liquids 
    GC/FID (Gas Chromatography/Flame Ionization
    
    [[Page 17563]]
    
    Detection), August 1998, Methods Manual, NCASI, Research Triangle Park, 
    NC, IBR approved for Sec. 63.457(c)(3)(ii) of subpart S of this part.
    
    Subpart S--National Emission Standards for Hazardous Air Pollutants 
    from the Pulp and Paper Industry
    
        3. Amend Sec. 63.441 by revising the definition of ``Process 
    wastewater treatment system'' to read as follows:
    
    
    Sec. 63.441  Definitions.
    
    * * * * *
        Process wastewater treatment system means a collection of 
    equipment, a process, or specific technique that removes or destroys 
    the HAPs in a process wastewater stream. Examples include, but are not 
    limited to, a steam stripping unit, wastewater thermal oxidizer, or 
    biological treatment unit.
    * * * * *
        4. Amend Sec. 63.443 by revising paragraph (b)(1) to read as 
    follows:
    
    
    Sec. 63.443  Standards for the pulping system at kraft, soda, and semi-
    chemical processes.
    
    * * * * *
        (b) * * *
        (1) At each existing affected source, the total HAP emissions from 
    each LVHC system shall be controlled.
    * * * * *
        5. Amend Sec. 63.445 by revising paragraphs (a)(2) and (b) to read 
    as follows:
    
    
    Sec. 63.445  Standards for the bleaching system.
    
        (a) * * *
        (2) Bleaching systems bleaching pulp from kraft, sulfite, or soda 
    pulping processes that use any chlorinated compounds; or
    * * * * *
        (b) The equipment at each bleaching stage, of the bleaching systems 
    listed in paragraph (a) of this section, where chlorinated compounds 
    are introduced shall be enclosed and vented into a closed-vent system 
    and routed to a control device that meets the requirements specified in 
    paragraph (c) of this section. The enclosures and closed-vent system 
    shall meet the requirements specified in Sec. 63.450. If process 
    modifications are used to achieve compliance with the emission limits 
    specified in paragraphs (c)(2) or (c)(3), enclosures and closed-vent 
    systems are not required, unless appropriate.
    * * * * *
        6. Amend Sec. 63.446 by revising paragraphs (b), (d)(1), and (e)(3) 
    to read as follows:
    
    
    Sec. 63.446  Standards for kraft pulping process condensates.
    
    * * * * *
        (b) The pulping process condensates from the following equipment 
    systems shall be treated to meet the requirements specified in 
    paragraphs (c), (d), and (e) of this section:
        (1) Each digester system;
        (2) Each turpentine recovery system;
        (3) Each evaporator system condensate from:
        (i) The vapors from each stage where weak liquor is introduced 
    (feed stages); and
        (ii) Each evaporator vacuum system for each stage where weak liquor 
    is introduced (feed stages).
        (4) Each HVLC collection system; and
        (5) Each LVHC collection system.
    * * * * *
        (d) * * *
        (1) Each closed collection system shall meet the individual drain 
    system requirements specified in Secs. 63.960, 63.961, and 63.962 of 
    subpart RR of this part, except closed-vent systems and control devices 
    shall be designed and operated in accordance with Secs. 63.443(d) and 
    63.450, instead of in accordance with Sec. 63.962(a)(3)(ii), 
    (b)(3)(ii)(A), and (b)(3)(ii)(B)(5)(iii); and
    * * * * *
        (e) * * *
        (3) Treat the pulping process condensates to reduce or destroy the 
    total HAPs by at least 92 percent or more by weight; or
     * * * * *
        7. Amend Sec. 63.447 by revising paragraphs (e)(2), (g)(1)(ii), and 
    (g)(2) to read as follows:
    
    
    Sec. 63.447  Clean condensate alternative.
    
    * * * * *
        (e) * * *
        (2) The HAP emissions reduction occurring by complying with the 
    clean condensate alternative technology.
    * * * * *
        (g) * * *
        (1) * * *
        (ii) The air pollution control technologies that would be used to 
    meet the requirements of Sec. 63.443(a)(1)(ii) through (a)(1)(v); and
    * * * * *
        (2) Estimates and basis for the estimates of total HAP emissions 
    and emission reductions to fulfill the requirements of paragraphs (d), 
    (e), and (f) of this section.
    * * * * *
        8. Amend Sec. 63.450 by revising paragraph (b) to read as follows:
    
    
    Sec. 63.450  Standards for enclosures and closed-vent systems.
    
    * * * * *
        (b) Each enclosure shall maintain negative pressure at each 
    enclosure or hood opening as demonstrated by the procedures specified 
    in Sec. 63.457(e). Each enclosure or hood opening closed during the 
    initial performance test specified in Sec. 63.457(a) shall be 
    maintained in the same closed and sealed position as during the 
    performance test at all times except when necessary to use the opening 
    for sampling, inspection, maintenance, or repairs.
    * * * * *
        9. Amend Sec. 63.453 by revising paragraphs (b), (k)(6)(ii), and 
    (l) to read as follows:
    
    
    Sec. 63.453  Monitoring requirements.
    
    * * * * *
        (b) A CMS shall be operated to measure the temperature in the 
    firebox or in the ductwork immediately downstream of the firebox and 
    before any substantial heat exchange occurs for each thermal oxidizer 
    used to comply with the requirements of Sec. 63.443(d)(1) through 
    (d)(3). Owners and operators complying with the HAP concentration 
    requirements in Sec. 63.443(d)(2) may install a CMS to monitor the 
    thermal oxidizer outlet total HAP or methanol concentration, as an 
    alternative to monitoring thermal oxidizer operating temperature.
    * * * * *
        (k) * * *
        (6) * * *
        (ii) The repair or corrective action shall be completed no later 
    than 15 calendar days after the problem is identified. Delay of repair 
    or corrective action is allowed if the repair or corrective action is 
    technically infeasible without a process unit shutdown or if the owner 
    or operator determines that the emissions resulting from immediate 
    repair would be greater than the emissions likely to result from delay 
    of repair. Repair of such equipment shall be completed by the end of 
    the next process unit shutdown.
        (l) Each pulping process condensate closed collection system used 
    to comply with Sec. 63.446(d) shall comply with the requirements 
    specified in paragraphs (l)(1) through (l)(3) of this section.
        (1) Each pulping process condensate closed collection system shall 
    be visually inspected every 30 days and shall comply with the 
    inspection and monitoring requirements specified in Sec. 63.964 of 
    subpart RR of this part, except:
        (i) Owners or operators shall comply with the recordkeeping 
    requirements of Sec. 63.454 instead of the requirements specified in 
    Sec. 63.964(a)(1)(vi) and (b)(3) of subpart RR of this part.
    
    [[Page 17564]]
    
        (ii) Owners or operators shall comply with the inspection and 
    monitoring requirements for closed-vent systems and control devices 
    specified in paragraphs (a) and (k) of this section instead of the 
    requirements specified in Sec. 63.964(a)(2) of subpart RR of this part.
        (2) Each condensate tank used in the closed collection system shall 
    be operated with no detectable leaks as specified in 
    Sec. 63.446(d)(2)(i) measured initially and annually by the procedures 
    specified in Sec. 63.457(d).
        (3) If an inspection required by this section identifies visible 
    defects in the closed collection system, or if an instrument reading of 
    500 parts per million or greater above background is measured, then 
    corrective actions specified in Sec. 63.964(b) of subpart RR of this 
    part shall be taken.
    * * * * *
        10. Amend Sec. 63.457 by revising paragraphs (b)(5) introductory 
    text, (b)(5)(ii)(C), (b)(5)(ii)(E)(7), (b)(6), (c)(2), (c)(3) 
    introductory text, (c)(4)(i), (f)(1), (h), and (m)(1)(ii); by 
    redesignating paragraph (c)(3)(ii) as paragraph (c)(3)(iii); and adding 
    a new paragraph (c)(3)(ii) to read as follows:
    
    
    Sec. 63.457  Test methods and procedures.
    
    * * * * *
        (b) * * *
        (5) To determine vent gas concentrations, the owner or operator 
    shall conduct a minimum of three test runs that are representative of 
    normal conditions and average the resulting pollutant concentrations 
    using the following procedures.
    * * * * *
        (ii) * * *
        (C) Critical orifice. The critical orifice shall have a flow rate 
    of 200 to 250 ml/min and shall be followed by a vacuum pump capable of 
    providing a vacuum of 640 millimeters of mercury (mm Hg). A 45 
    millimeter diameter in-line Teflon 0.8 micrometer filter shall follow 
    the impingers to protect the critical orifice and vacuum pump.
    * * * * *
        (E) * * *
        (7) To prepare the 10 percent sulfuric acid solution, add 10 ml of 
    concentrated sulfuric acid to 80 ml water in a 100 ml volumetric flask. 
    Dilute to volume.
    * * * * *
        (6) The minimum sampling time for each of the three test runs shall 
    be 1 hour in which either an integrated sample or four grab samples 
    shall be taken. If grab sampling is used, then the samples shall be 
    taken at approximately equal intervals in time, such as 15 minute 
    intervals during the test run.
        (c) * * *
        (2) The volumetric flow rate of the entering and exiting liquid 
    streams shall be determined using the inlet and outlet flow meters or 
    other methods demonstrated to the Administrator's satisfaction. The 
    volumetric flow rate measurements to determine actual mass removal 
    shall be taken at the same time as the concentration measurements.
        (3) The owner or operator shall conduct a minimum of three test 
    runs that are representative of normal conditions and average the 
    resulting pollutant concentrations. The minimum sampling time for each 
    test run shall be 1 hour and the grab or composite samples shall be 
    taken at approximately equally spaced intervals over the 1-hour test 
    run period. The owner or operator shall use one of the following 
    procedures to determine total HAP or methanol concentration:
    * * * * *
        (ii) For determining methanol concentrations, NCASI Method DI/MEOH-
    94.02, Methanol in Process Liquids by GC/FID, August 1998, Methods 
    Manual, NCASI, Research Triangle Park, NC. This test method is 
    incorporated by reference in Sec. 63.14(f) of subpart A of this part.
    * * * * *
        (4) * * *
        (i) Filter the sample through the filter paper, into an Erlenmeyer 
    flask by applying a vacuum to the flask sidearm. Minimize the time for 
    which vacuum is applied to prevent stripping of volatile organics from 
    the sample. Replace filter paper as often as needed in order to 
    maintain filter times of less than approximately 30 seconds per filter 
    paper. No rinsing of sample container or filter bowl into the 
    Erlenmeyer flask is allowed.
    * * * * *
        (f) * * *
        (1) As the sum of all individual HAPs; or
    * * * * *
        (h) Bleaching HAP concentration measurement. For purposes of 
    complying with the bleaching system requirements in Sec. 63.445, the 
    owner or operator shall measure the total HAP concentration as the sum 
    of all individual chlorinated HAPs or as chlorine.
    * * * * *
        (m) * * *
        (1) * * *
        (ii) Multiply the total HAP mass determined in paragraph (m)(1)(i) 
    of this section by 0.65 to determine the target HAP mass for the high-
    HAP fraction condensate stream or streams.
    * * * * *
        11. Table 1 of subpart S is amended by revising the entry for 
    Sec. 63.8(f)(6) to read as follows:
    
      Table 1 to Subpart S--General Provisions Applicability to Subpart Sa
    ------------------------------------------------------------------------
            Reference           Applies to  Subpart S          Comment
    ------------------------------------------------------------------------
    *                  *                  *                  *
                      *                  *                  *
    63.8(f)(6)..............  No......................  Subpart S does not
                                                         specify relative
                                                         accuracy test for
                                                         CEMs.
    *                  *                  *                  *
                      *                  *                  *
    ------------------------------------------------------------------------
    a Wherever subpart A specifies ``postmark'' dates, submittals may be
      sent by methods other than the U.S. Mail (e.g., by fax or courier).
      Submittals shall be sent by the specified date, but a postmark is not
      required.
    
    
    [[Page 17565]]
    
    [FR Doc. 99-8950 Filed 4-9-99; 8:45 am]
    BILLING CODE 6560-50-P
    
    
    

Document Information

Effective Date:
4/12/1999
Published:
04/12/1999
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Final rule; interpretation and technical amendments.
Document Number:
99-8950
Dates:
These amendments are effective April 12, 1999. The incorporation by reference of the publication listed in the amendments is approved by the Director of the Federal Register as of April 12, 1999.
Pages:
17555-17565 (11 pages)
Docket Numbers:
AD-FRL-6322-8
PDF File:
99-8950.pdf
CFR: (12)
40 CFR 63.964(a)(1)(vi)
40 CFR 63.446(d)(2)(i)
40 CFR 63.8(f)(6)
40 CFR 63.14
40 CFR 63.441
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