ILLINOIS POLLUTION CONTROL BOARD
    December
    22,
    1987
    IN THE MATTER OF:
    VOLATILE ORGP~NICMATERIAL
    )
    R82-14
    EMISSIONS FROM STATIONARY
    )
    SOURCES:
    RACT III
    ADOPTED RULE
    FINAL ORDER
    OPINION AND ORDER OF THE BOARD
    (by
    B.
    Forcade):
    This matter
    came before the Board
    on
    a series
    of proposed
    amendments
    to
    35
    Ill.
    Adm. Code Par
    215, Organic Material
    Emission Standards and Limitations,
    for the control
    of the
    pollutant ozone.
    All of
    the proposed amendments addressed some
    aspect
    of the existing regulations controlling volatile organic
    material
    (“VOM”)
    emissions from coating operations.
    Amendments
    to
    35
    Ill.
    Adm. Code Sections 211.122,
    215.204,
    215.205 and
    215.207 were considered
    in the instant opinion and order.
    Merit
    hearings on the proposed amendments were held on December
    2—3,
    1985; March 20—21,
    1986; August
    4,
    1986;
    August
    7,
    1987;
    September 3—4,
    1986; October
    30,
    1986;
    and November
    7,
    1986.
    Hearings regarding the Economic Impact Statement
    (EcIS)
    for
    Sections 215.204 and 215.207 were held on May
    8 and 21,
    1987.
    Final merit
    evidence was also accepted at these hearings.
    The
    record closed on June
    30,
    1987.
    This is one of
    a series
    of Board actions directed at
    promulgating rules implementing reasonably available control
    technology
    (“RACT”)
    for the control
    of ozone precursors from
    existing major stationary sources
    (emissions greater than 100
    tons/year).
    The implementation of RACT in non—attainment areas
    for ozone
    is required as
    a part of
    a federally approvable
    state
    implementation plan
    (“SIP”)
    under the federal Clean Air Act
    (“CAA”)
    (42 U.S.C. 7401 et seq.).
    Section 172 of the CAA
    requires
    that RACT be implemented at existing stationary sources
    in the non—attainment areas
    of those states needing an extension
    from the 1982 deadline until 1987 to achieve the air quality
    standard
    for ozone.
    Illinois
    is such a state, having requested
    the extension
    in its 1979 and 1982 SIP.
    The definition of RACT
    is contained
    in 40 CFR 51, along with
    the requirements for
    a federally acceptable SIP.
    However, the
    specific parameters of what constitutes reasonably available
    controls,
    and, therefore,
    the parameters which the states must
    adopt to insure that RACT
    is implemented,
    are not.
    Instead, the
    United States Environmental Protection Agency
    (“USEPA”) publishes
    a series
    of documents entitled “Control Technique Guidelines”
    (“CTGs”).
    Each
    of the CTGs,
    which are summaries
    of industry
    84—745

    —2—
    specific case studies,
    contains the means and the degree of
    control which the tJSEPA requires the state
    to adopt categorically
    as part of its SIPs
    in order
    to have an acceptable SIP.
    Failure
    to adopt rules identical
    to those presented
    in the CTGs,
    or other
    ones demonstrated by the individual state
    as comparable, can mean
    that the state will have an inadequate SIP, which
    in turn can
    trigger the sanction provisions
    of the CAA found at Sections 110,
    113 and 176
    (42 (J.S.C.A.
    7410,
    7413,
    7506).
    While the mandate
    for sanctions
    is
    contained
    in the CAA,
    the mandate to adopt the
    CTGs or otherwise demonstrate a state rule
    to be comparable
    is
    not.
    It
    is not even contained
    in the federal regulations,
    but
    instead
    is articulated
    in the “General Preamble for Proposed
    Rulemaking and Approval of State Implementation Plan Revisions
    for Non—Attainment Areas”
    (44 FR 20372).
    RACT regulations controlling VOM emissions from coating
    operations were adopted
    in the first RACT proceeding, R78—3,4,
    RACT I,
    (35 PCB 35—75, July
    12,
    1979).
    The rules at issue today,
    Sections 211.122,
    215.204,
    215.205 and 215.207, address Emission
    Limitations from Manufacturing Plants, Alternative Emission
    Limitations and Internal Offset, respectively.
    The proposed
    amendments to these sections are intended
    to correct certain
    alleged deficiencies
    in
    the rules
    in order
    to reflect RACT and,
    in part,
    to respond
    to new guidance from the USEPA.
    Additionally,
    in the course
    of the proceeding,
    several site—
    specific amendments were proposed by industrial facilities
    in
    response to the proposed amendments
    to Section 215.204 and
    215.207.
    Proposed amendments to each section are addressed
    separately,
    below.
    However, certain conceptual elements of the
    proposed amendments are interrelated.
    Such interrelationships
    are noted where possible.
    The Board adopted the First Notice
    Opinion and Order on July 16,
    1987.
    I.
    Section 215.205:
    Alternative Emissions Standards
    The Illinois Environmental Protection Agency
    (“Agency”),
    in
    its original regulatory proposal initiating the R82—14 proceed-
    ing, sought to amend Section 215.205 as adopted
    in R78—3,
    4, RACT
    I
    (Ex.
    1).
    Section 215.205 provides alternatives to the VOM
    limitations for surface coating operations contained
    in Section
    215.204,
    by specifying emission standards based on add—on control
    equipment performance.
    Section 215.205 specifies minimum
    destruction efficiencies and overall control equipment
    efficiencies.
    Overall control efficiency
    is the product of
    the
    capture efficiency and the destruction efficiency.
    When the
    existing Section 215.205 was reviewed by USEPA
    as an amendment to
    the SIP,
    it found the rule to be possibly deficient.
    The Agency
    agreed
    to undertake
    a study evaluating achievable capture
    efficiency and submit any necessary amendments to Section 215.205
    to the Board, thereby,
    acquiring conditional approval
    of that
    portion of the SIP (45 FR 1147 at 11482;
    Ex.
    2).
    This study,
    prepared by the Radian Corporation, was submitted as Exhibit No.
    84—746

    —3—
    11.
    The Agency’s proposed amendments
    to Section 215.205 were
    based
    on this study.
    Proposed Section 215.205 was inadvertently omitted from the
    Board’s August 10,
    1984, First Notice Order,
    due
    to
    a perceived
    nexus between
    it and
    the anticipated amendments
    to Section
    215.207.
    On May 30,
    1985,
    the Board proposed the Agency’s
    amendments
    to Section 215.205 for first notice publication.
    The
    Agency further amended proposed Section 215.205 on November
    22,
    1985
    (Ex.
    87).
    Additional hearings regarding
    this rule were held
    on December
    2,
    1985,
    and March
    20,
    1986, at the request
    of the
    Chicago Association of Commerce and Industry (CAd).
    The amendments proposed by the Agency to Section 215.205
    were based on the Radian Study
    (Ex.
    11).
    The Agency proposed to
    increase the overall control efficiency required at the process
    equipment for
    all types
    of surface coating facilities regulated
    under Section 215.204 from 75
    to 81,
    except for can coating.
    No change was proposed for can coating operations using add—on
    controls because the control efficiency at these sources remained
    undetermined by
    the study.
    The Radian Study found that
    a
    reasonably available collection efficiency ranged between
    91 and
    94 percent for paper coaters.
    Based
    on this,
    the
    81 percent
    overall control efficiency figure was proposed
    for
    the remaining
    surface coaters.
    The Agency’s amended proposal of November
    22,
    1985, added language
    to make
    it clear that the overall emission
    reductions
    to be achieved when afterburners are used are
    75
    percent for the can coating category and
    81 percent for all other
    categories of sources subject to Section 215.204.
    The USEPA had indicated its willingness
    to accept
    regulations consistent with the Radian Study
    (Ex.
    88,
    49 FR
    20522).
    The USEPA Notice of Proposed Rulemaking addressed
    several
    “conditions relating
    to the Illinois SIP” including the
    conditional approval
    of this regulation.
    In that notice, USEPA
    extended the date
    for satisfying
    this condition to July 31,
    1984.
    CACI opposed the proposed amendment and argued that the
    Radian Study provided an insufficient factual basis for adopting
    the Agency’s proposal because the full spectrum of coating
    operations were not studied.
    CACI argued that only the paper
    coating category was studied and that not all Illinois paper
    coaters were included.
    CACI asserted
    that this provides an
    insignificant sample size (P.C.
    73).
    CACI provided no evidence
    that the level
    of control
    in the Agency’s proposed amendment was
    technically infeasible or economically unreasonable.
    Addition-
    ally, CACI pointed out the general problem of measuring capture
    efficiency and criticized certain collection efficiency
    assumptions made in the Radian Study regarding paper
    coaters
    outside
    of Illinois
    (P.C.
    73).
    84—747

    —4—
    In response, the Agency presented additional evidence
    regarding the propriety of the
    81 percent overall control
    efficiency and clarified how efficiencies could be calculated and
    measured
    in the context of
    a stack test
    (Ex.
    95(a)
    and (b),
    Ex.
    97(a)
    and
    (b)).
    The Board was not persuaded by CACI’s arguments.
    First,
    the
    results of the Radian Study support the “presumptive norm”
    of
    81
    percent
    in the earlier coating CTG.
    Second,
    while it may
    be
    preferable
    to work from
    a state of perfect knowledge,
    it
    is not
    always possible in the context of
    a regulatory proceeding.
    It is
    true that the Radian Study did not examine every coating
    operation throughout Illinois.
    However,
    that
    is not necessary in
    this context.
    The Board was presented with sufficient evidence
    that for most coating operations,
    81 percent
    is
    a reasonable
    number.
    The Board was presented with no evidence to the
    contrary.
    Third, while CACI pointed out alleged defects
    in
    the
    Radian Study,
    these “defects” were not incorporated
    in the
    proposed amendments to Section 215.205.
    For example, CACI
    criticized
    the 100 percent capture efficiency assumption in the
    Radian Study’s
    review of non—Illinois coating facilities.
    However,
    the proposed rule only requires 90 percent capture
    efficiency.
    Fourth,
    the proposed amendment to Section 215.205
    is
    not even
    as stringent
    as the results
    of the Radian Study could
    support.
    Focusing on the collection efficiency at Illinois paper
    coating facilities,
    the study determined that
    a reasonably
    available collection efficiency ranged between
    91 and
    94
    percent.
    The proposed amendment provides an added cushion
    through the
    81 percent overall efficiency requirement which
    translates
    to only a 90 percent capture requirement.
    As
    a final
    matter,
    if there are facilities
    in Illinois that,
    due to special
    circumstances, cannot comply with the proposed amendment,
    variance and site—specific regulatory relief are available under
    Illinois law.
    The Board
    found
    that the proposed amendments
    to
    Sectioji
    215.205 constitute
    RACT
    and, therefore, proposed this rule for
    first notice.
    The Board noted that this action would help to
    remedy any possible SIP deficiencies and avoid sanctions under
    the CAA.
    II.
    Section 215.204
    Emission Limitations for Manufacturing
    Plants
    Section 215.204 prescribes VOM emission limitations for an
    array of coating process categories.
    The
    limitations
    of Section
    215.204
    are expressed
    in terms of kg/i or lb/gal
    of VOM,
    excluding water, delivered
    to the coating applicator.
    Some of
    the coating process categories specify a transfer efficiency.
    The Agency’s proposed amendments to Section 215.204 would require
    the exclusion of
    certain organic solvents exempted from the
    definition of VOM from the calculation
    of the emission
    84—748

    —5—
    limitations.
    This Agency proposal was filed on March
    13,
    1986,
    and amended on July 25,
    1986.
    Hearings regarding this proposal
    were held on March 20,
    1986;
    August
    4
    and 7,
    1986;
    September
    3—4,
    1986;
    October 30,
    1986;
    and November
    7,
    1986.
    The Department
    of
    Energy and Natural Resources
    (“DENR”)
    filed
    an Economic Impact
    Study
    (EcIS)
    on March 13,
    1987
    (Ex.
    142).
    EcIS hearings were
    held on May
    8 and
    21,
    1987.
    The rationale for the Agency’s proposal
    to exclude certain
    compounds that are specifically exempted from the definition
    of
    VOM involves some review of past RACT regulations and their
    development over time.
    The original language for Section 215.204
    was adopted
    as part of the RACT
    I proceeding
    (R78-3,4) and the
    definition of VOM at that time did not exclude any compounds
    which are liquids at room temperature capable of being used as
    solvents
    in coatings.
    In the original definition of VOM, only
    methane and ethane, which are gases
    at room temperature, were
    excluded as being negligibly photochemically reactive
    .
    Their
    exclusion had
    no effect on volume calculations under Section
    215.204.
    However,
    in the RACT II proceeding
    (R80—5)
    and this RACT III
    proceeding
    (R82—l4), other compounds which
    are liquids capable of
    being used as coating solvents have been exempted from the
    definition of VOM because they are negligibly photochemically
    reactive.
    Methylene chloride and 1,l,l,—trichloroethane were
    excluded
    in RACT II and seven more compounds were excluded in
    RACT
    III.
    The Agency contended that since these compounds do not
    contribute
    to emissions of VOM,
    it
    is neáessary to subtract their
    volume from the volume of coating
    in
    the same way that the volume
    of water
    is subtracted from the volume of coating under
    the
    present regulations.
    It
    is the Agency’s position that
    if this
    subtraction were not done,
    then the numerical limitations
    of
    Section 215.204
    are circumvented.
    An unintended inequity exists
    which favors coatings using the excluded compounds relative
    to
    water based coatings and high solids coatings
    (Ex.
    120, 132~and
    135).
    There are
    two basic methods
    by which exempt compounds can be
    used
    to reformulate non—complying coatings,
    i.e.,
    1)
    dilution,
    and
    2) direct substitution for VOM.
    In the first method, the
    coating
    is simply diluted by adding an exempt compound.
    The
    Agency contended that
    it does not make sense
    to allow greater
    emissions from the additional gallons of coating applied when the
    volume
    of solvent contributing
    to emissions of VOM
    is the same.
    Thus,
    in simple dilution by adding an exempt compound, the exempt
    compound should be
    treated
    as water,
    i.e.,
    as not contributing
    to
    emissions or coating volume.
    In the second method, exempt compounds are substituted
    for
    solvents which would contribute emissions of VOM.
    Since the
    compounds substituted
    for original solvent do not contribute
    to
    84—7 49

    —6—
    emissions of VOM the facility reduces
    its VOM emissions.
    However, the volume of exempt compounds must still be subtracted
    in determining allowable emissions in order
    to achieve
    equivalency with the numerical limitation.
    The Agency argued
    that the exempt compound should be treated as water since there
    will be lower VOM emissions as well as lower coating volume.
    To
    the extent that the emissions have been reduced relative to the
    coating volume,
    this will result
    in what the Agency called the
    proper
    RACT
    ratio.
    In the case of complete substitution of the
    original solvent with exempt compound,
    the RACT ratio will be
    zero since there are no volatile organic emissions which
    is again
    equivalent with treating the exempt solvents as water.
    It is the Agency’s position that retaining the volume
    of
    “excluded”
    compounds in the coating volume
    is inconsistent with
    the limits
    of
    Section 215.204, as they represent the use of
    RACT.
    The limits
    of Section 215.204
    reflect
    a ratio between VOM
    emissions and the solids contained in
    a coating.
    For example,
    an
    emission limit
    of 3.0 lb/gallon represents
    a coating with
    approximately
    40 percent VOM and
    60 percent solids for
    a PACT
    ratio
    of 2:3.
    When the volume of exempt compounds is included
    in
    the total volume of coating,
    the ratio of VOM to solids
    deviates
    from the RACT ratio represented by the numerical limitation.
    For
    example,
    a coating might contain only 40 percent VOM,
    30 percent
    solids,
    and 30 percent exempt compounds.
    In this case,
    the ratio
    of VOM to solids
    is
    4:3.
    Another way of making the comparison
    would
    be
    to say that for each gallon of
    solids in the complying
    coating,
    2/3 gallon of VOM
    is allowed.
    However, with the second
    example,
    for each unit
    of solids,
    4/3 gallon of VOM
    is allowed
    which is
    twice as much VOM relative
    to the solids than would be
    allowed by the complying coating.
    The Agency contended that any
    coating with
    a ratio of VOM to solids greater than that of the
    complying coating would not constitute RACT
    as defined by the
    numerical limitations
    in Section 215.204.
    In the extreme case
    of pure dilution, exempt compounds~night
    be used to dilute
    a formerly non—complying coating so that
    it
    complies with the numerical limit
    of Section 215.204 but with no
    reduction in actual VOM emissions from the coating.
    This
    situation is the same as that which led to the exclusion of water
    from the coating volume for purposes of Section 215.204.
    In
    order
    to assure that the limits of Section 215.204 do represent
    a
    coating equivalent to the PACT limitations,
    the volume of exempt
    compounds must also
    be excluded from the total volume
    of coating.
    The Agency contended that USEPA guidance on this subject
    is
    “quite clear”
    and cites an article written by USEPA employees,
    regarding the appropriate method of calculation,
    tJSEPA’s
    “VOC
    Data Sheet for Suppliers of Paints and Coatings” and an issue
    of
    USEPA’s “VOC PACT Clearinghouse Newsletter” which address this
    issue
    (Ex. 120).
    It
    is the Agency’s position that its proposed
    amendment will not result in any substantive change
    in the
    84—750

    —7—
    emission limitations
    of Section 215.204, but merely provides
    “clarification”
    on the appropriate method of calculation (Agency
    Response to Order,
    May
    21,
    1987).
    The primary opposition to the proposed amendments
    to Section
    215.204 has come from the Duo Fast Corporation
    (“Duo Fast”).
    While Duo Fast and the Agency eventually came to agreement re-
    garding appropriate emission limitations for coatings for the
    power driven fastener
    industry,
    it
    is worthwhile reviewing Duo
    Fast’s arguments.
    Essentially,
    Duo Fast contends that the
    Agency’s proposal oversimplifies the realities of coating
    chemistry and formulation.
    The consequence of emission
    limitations based on this simplified view of coatings
    is that
    compliance coatings are technically infeasible to apply,
    at least
    in the power driven fastener
    industry.
    More specifically, Duo
    Fast contended
    that there
    is no known coating chemistry that can
    achieve compliance with the proposed change
    (R.
    3390).
    The Agency proposal was criticized
    for only “partially”
    recognizing that water’s mass and volume should be excluded from
    the regulations pertaining
    to organic materials.
    Also, Duo Fast
    contends that the Agency’s testimony
    is flawed by stating
    a
    “ratio” of
    emissions
    to solids exists
    as
    a part of RACT.
    According to the Duo Fast argument,
    the amendment
    ignores the key
    term:
    “delivered
    to the coating applicator.”
    According to one
    witness, the Agency devised
    its ratio assuming that the coating
    is delivered to the applicator
    in
    a solvent—free state.
    “The
    true
    volume
    of
    the
    solvated polymer
    is
    physically
    and
    significantly
    different
    as
    delivered
    to
    the
    Coating
    Applicator.
    After
    application
    to the substrate to be coated, the
    mechanism
    of
    solvent
    release
    occurs
    and
    solvent
    release
    continues
    until
    it
    is
    com-
    plete.
    In
    a
    coating
    operation,
    generally
    a
    film
    is
    formed
    which
    represents
    both
    volume
    and
    mass
    of
    solids.
    It
    is
    critically im-
    portant
    to be aware that for different organic
    polymeric
    resin
    systems,
    there
    are
    differing
    solvent release mechanisms and solvent release
    rates.
    How
    is
    it valid
    to make an
    ‘after
    the
    fact’
    assumption
    regarding
    volume
    solids ap-
    plied
    in the state
    of
    a solvent free condition
    when
    the
    Rule
    makes
    a
    very specific require-
    ment
    specifying
    the
    coating
    condition
    as
    ‘delivered
    to
    the Coating Applicator’.”
    (R.
    4659—4660).
    Duo Fast also contended that the coating listed
    in the
    Miscellaneous Metal Parts and Products of 4.3 lb VOM per gallon
    is impossible
    to formulate and
    to utilize on Duo Fast equipment
    or any other known
    technology
    of similar nature.
    Since Duo Fast
    84—751

    —8—
    is required
    to use the cellulose ester resin polymer system in
    its manufacturing process, the coating that would
    be required
    to
    meet the Agency’s description would
    be impossible to apply
    (R.
    4660—4661).
    Ultimately, Duo Fast and the Agency came
    to agreement that
    the power driven fastener industry,
    and Duo Fast
    in particular,
    presented a unique
    situation that justified special emission
    limitations.
    Duo Fast and the Agency proposed
    a further
    amendment to Section 215.204, which provides PACT limitations for
    power driven fastener coating.
    This proposal will be addressed
    in Section
    III
    of this opinion, further below.
    However,
    the net
    effect
    of this amendment is to ameliorate any adverse impact
    to
    Duo Fast as
    a result
    of the Agency’s proposal
    to exclude exempt
    solvents from the calculation of emission limitations.
    It appeared from the record before
    the Board that the
    Agency’s proposal
    to exclude exempt solvents from the calculation
    of Section
    215.204 emission limitations
    is an appropriate method
    of determining VOM emissions for
    a particular coating.
    The Board
    noted that the proposed amendment will ensure that dilution with
    exempt solvents will not be used as
    a method
    of compliance,
    just
    as
    dilution
    with
    water
    is
    currently
    prevented.
    Direct
    substitution of VOM solvents with exempt solvents will continue
    to be
    a permissible method of formulating compliant coatings.
    Regarding Duo Fast’s conceptual arguments in opposition to
    the proposed amendment,
    the Board made the following
    observations.
    It ~appearsthat for Duo Fast’s specialized coating
    process,
    the Agency’s proposal would create serious compliance
    problems
    in terms of the practical realities of applying such
    a
    coating.
    However,
    this appears
    to be
    a unique situation not
    necessarily experienced by the majority of coaters.
    It appears
    that the unique circumstances of the power driven fastener
    industry, and Duo Fast in particular, will be adequately
    addressed by the special PACT emission limitation jointly
    proposed by Duo Fast and the Agency.
    The record
    indicates that
    only two facilities would have their compliance status affected
    by the Agency’s proposal.
    Both Duo Fast and Classic Finishing
    Company have worked with the Agency and have formulated or are
    in
    the process
    of formulating specialized emission limitations that
    reflect PACT for their unique coating processes.
    Consequently,
    the Board believes that the Agency’s proposal
    is generally
    a
    sound and improved method of determining emissions from
    coatings.
    In limited circumstances,
    it may create technical
    feasibility problems for certain types of coating applications.
    However, those rare situations are being addr~essedthrough
    specific emission limitations tailored
    to the u~guecoating
    process.
    The practical effect of
    the Agency’s proposal will be
    to
    change the emission limitations currently in Section 215.204
    for
    84— 752

    —9—
    those coaters who utilize exempt solvents.
    While the amendment
    clarifies
    the calculation method,
    it
    is also apparent
    that some
    of the applicable coating limitations are substantively
    changed.
    However, this substantive change only affects the
    compliance status
    of two facilities,
    which will
    be the subject of
    specialized
    limitations.
    Therefore,
    the actual economic impact
    of
    the proposal, when viewed
    in total,
    is very limited.
    The
    proposed amendment clarifies and tightens the calculation
    of
    emission limitations for coaters.
    It
    is hoped that this
    amendment will
    close a potential “loophole”
    in determining
    compliance under Section 215.204.
    The Board found that the proposed amendments to Section
    215.204 constitute RACT and, therefore, proposed this rule for
    first notice.
    The Board noted that this action would help to
    remedy any possible SIP deficiencies and avoid sanctions under
    the CAA.
    III. Section 215.204(j)
    Power Driven Fastener Coating
    During this proceeding,
    Duo Fast was identified as
    potentially adversely impacted by the Agency’s proposed amend-
    ments
    to Sections 215.204 and 215.207.
    Duo Fast participated
    extensively
    in the hearings and presented testimony in opposition
    to the general principles embodied
    in the Agency’s proposals,
    as
    well as
    testimony demonstrating that the proposal was
    not
    technically
    feasible, economically reasonable or PACT for Duo
    Fast.
    At
    the close of the merit record, the Agency proposed
    amendments
    to Section
    2l5.204-(j), which would provide special
    emission limitations
    for power driven fastener coating that
    reflect PACT for
    this subcategory of miscellaneous metal coating
    (Agency Motion
    to Further Amend, December
    10,
    1986).
    Duo Fast,
    in
    its final comments
    in this matter,
    advocated adoption of the
    Agency’s proposed 215.204(j)
    limitations
    in the event
    the Board
    decides to adopt the Agency’s proposal to exclude exempt solvents
    from the calculation
    of emission limitations
    in 215.204 and
    215.207
    (Closing Statement of Duo Fast Corporation, June 30,
    1987).
    Duo
    Fast
    operates
    a
    facility
    in
    Franklin
    Park
    (Cook
    County),
    which manufactures
    a multitude of power driven fasteners,
    nails
    and
    power
    driven
    fastener
    tools.
    Duo
    Fast
    employs
    approximately
    1,100
    people
    at
    this
    facility.
    Duo
    Fast’s
    distinct
    and
    unique
    coating
    operations
    are
    carried
    out
    on
    a
    large
    number
    of
    conventional staple making machines and five newer multi—wire
    staple making machines.
    (The term “staple” also includes certain
    brad
    and
    finish
    nail
    fasteners.)
    The
    conventional
    machines
    apply
    small
    amounts
    (i.e.,
    less
    than
    1/2
    pound
    of
    organic
    emissions/hour,
    total)
    of
    bonding,
    lubricity
    and
    withdrawal
    resistance
    coatings
    at
    three
    separate
    stations.
    The
    multi—wire
    machines
    apply
    somewhat
    larger
    amounts
    of
    a
    single
    multi—purpose
    coating.
    The
    total
    organic
    emissions
    of
    the
    conventional
    84— 753

    —10—
    machines are approximately
    140 tons/year at present
    (see Emission
    Report from Duo Fast,
    dated October
    17,
    1986, Attachment
    10).
    The total organic emissions
    of multi—wire machines are presently
    about 50 tons/year
    and are limited to 80.3 tons/year by
    a permit
    condition imposed
    to establish non—applicability
    of
    35
    Ill. Adm.
    Code Part 203.
    In the absence
    of site—specific consideration for
    Duo Fast,
    the changes proposed by the Agency to Section 215.204
    would result
    in non—compliance of certain Duo Fast coating
    operations.
    Duo Fast presently appears
    to be
    in line—by—line compliance
    with the current emission limitations
    of Section 215.204 through
    the use of combination materials which perform both adhesive and
    coating functions and reformulation by substituting non—photo—
    chemically reactive solvents for VOM5 (Closing Statement of Duo
    Fast Corporation, June 30,
    1987).
    Before the development
    of
    combination materials,
    Duo Fast relied on the existing internal
    offset rule to achieve compliance.
    Duo Fast presented evidence of its efforts,
    over the years,
    to reduce organic emissions by reformulation of its coatings,
    as
    well as process changes
    (Exs.
    92,
    93,
    125).
    The record also
    contains considerable information on the uniqueness of Duo Fast’s
    staple making equipment,
    its coating operation and the functions
    which the coatings serve,
    as compared
    to other miscellaneous
    metal parts and products coating operations.
    Unique features
    include the high degree
    of automation,
    low rates
    of coating
    application per applicat-or, high transfer efficiency,
    limited
    curing
    time,
    lack
    of enclosure,
    role
    of bonding coating and need
    for immediate function, end use of product,
    and specialization of
    coating function
    in end use
    of product.
    Considering these
    technological constraints,
    Duo Fast appears to have made
    substantial efforts to reformulate coatings to comply with the
    present Section 215.204(j)
    by the principal means available,
    use
    of exempt organic compounds.
    However,
    the limit of organic
    emission reduction achievable with this means also seems
    to have
    been reached
    (P.C.
    99).
    Duo
    Fast
    investigated
    compliance
    through
    the use of add—on
    control
    equipment
    as
    an alternative
    to further reformulation
    of
    coatings
    to meet the new limitations that would
    be applicable
    under the Agency’s proposed amendment to Section 215.204.
    Duo
    Fast had
    a detailed “Control Equipment Evaluation” prepared by
    Yates
    & Auberle,
    Ltd.
    (Y&A).
    The evaluation considered combined
    and separate control
    of conventional machines and multi—wire
    machines using
    a catalytic
    oxidizer,
    a
    thermal
    oxidizer
    with
    high
    efficiency
    heat
    transfer
    and an adsorption—oxidizer system.
    Y&A
    estimated that the cost effectiveness
    of the control equipment
    necessary to achieve compliance would be $10,000/ton.
    The Agency
    and EcIS both adjusted this figure but still
    came to the
    conclusion that the cost was well above the levels usually
    84—7 54

    —11—
    accepted
    as
    PACT (approximately $2,000/ton)* (P.C.
    99,
    Ex.
    142).
    Additionally,
    there are uncertainties regarding the actual
    technical feasibility of the control systems costed—out by Y&A
    in
    its study.
    The emissions capture system may have
    to be revised
    after
    a pilot study, which could increase the cost of compli-
    ance.
    The extensive use of methylene chloride will lower the
    organic emissions cited
    in the Y&A study.
    Costs will also be
    added
    to the Y&A estimates to account for scrubbing
    of hydrogen
    chloride
    in
    the gas stream following the afterburner.
    The Agency and Duo Fast also looked
    to similar facilities
    throughout the country in order
    to determine what PACT might
    be
    for this specialized
    industry.
    Other major companies
    in the
    power driven fastener industry appear to have been less
    successful than Duo Fast
    in complying with PACT regulations and
    are the subject of state and federal enforcement actions and
    consent decrees setting stringent compliance deadlines
    (P.C. 99).
    Many of
    these compliance deadlines have been unattainable
    (Closing Statement of Duo Fast Corporation, June 30,
    1987).
    The Agency has proposed
    a revision to 35
    Ill.
    Adm. Code
    215.204(j)
    to specifically address organic material emissions
    from Duo Fast’s coating operations.
    (Agency Motion to Further
    Amend 35 Ill. Adm. Code Sections 211.122 and 215.204, December
    10,
    1986.)
    This revision proposed specific emission limits,
    in
    pounds of organic material per gallon
    of coating,
    for four
    distinct and unique coating operations at Duo Fast.
    It also
    includes a reference for nail coating, Duo Fast’s other type of
    operation,
    to present limits applicable
    to miscellaneous metal
    parts and products coating.
    The proposal does not identify Duo
    Fast by name,
    but rather applied
    to “Power Driven Fastener
    Coating.”
    Duo Fast is believed
    to
    be the only facility engaged
    in such coating
    in Illinois,
    as the term is defined.
    The Board proposed for first notice the proposed amendments
    to Section 215.204(j),
    which provide special limitations
    reflecting RACT for
    the power driven fastener
    industry.
    The
    Board found that Duo Fast had made
    a showing that the limitations
    of Section 215.204 as modified by the Agency’s proposal
    to
    exclude exempt solvents would not be PACT for the power driven
    fastener industry
    in Illinois.
    The Board concluded that the
    record adequately supports special limitations that should be
    federally approvable.
    The Board notes that this PACT cost—effectiveness figure
    is
    a
    rough estimate that does vary.
    Cost—effectiveness for RACT has
    been expressed within the range of
    $1,800
    $2,500/ton by various
    sources.
    84—755

    —12—
    IV.
    Section 215.204(c)
    Specialty High Gloss Catalyzed Coating
    Classic Finishing Company
    (“Classic”) was identified,
    relatively late
    in this proceeding,
    as having its compliance
    status affected by the Agency’s proposal to exclude exempt
    solvents from the emission limitation calculations
    in Section
    215.204.
    Classic operates a facility
    in Chicago (Cook County)
    which provides specialty finishes to preprinted products on
    a
    job—shop basis.
    These coating and lamination processes fall into
    the category
    of paper coating.
    Classic operates four solvent—
    borne top coating lines and two UV coating lines.
    Classic has
    achieved compliance with existing Section 215.204 through
    reformulation of
    its solvent—borne top coating
    to contain 1,1,1—
    trichloroethane, an exempt solvent,
    and through the use, where
    possible,
    of solventless UV coating.
    Classic presented evidence
    of its research and development
    efforts to date which demonstrate that little further VOM
    emission reductions are possible through further coating
    reformulation or
    switching
    to
    tJV
    coating.
    Water—borne coatings
    have been investigated but are not available for this specialized
    category of paper
    coating
    (R.
    4840—4845).
    Add—on controls were
    investigated but even preliminary engineering costs would exceed
    the rough benchmark
    of $2,000/ton which
    is commonly used as
    a
    PACT guideline
    (R.
    4935).
    Add—on controls would reduce VOM
    emissions by approximately three tons/year at
    a minimum cost of
    $8,000
    to $10,000
    tons/year
    (R.
    4928—4931).
    The Agency’s
    proposal to exclude exempt solvents from the calculation of
    Section 215.204 limitations would mean that over 40
    of Classic’s
    coating operations would be out of compliance with no realistic
    method available to continue operations
    (R.
    4843—44).
    Because of the specialized nature
    of Classic’s coating
    operations and job—shop business, recent significant VOM
    reductions through reformulation and UV coating,
    the limited
    prospect of further significant emission reductions, the high
    cost
    of add—on controls and the relatively small amount of
    emissions at issue the Agency proposed special VOM emission
    limitations for “Specialty High Gloss Catalyzed Coating”
    (Agency
    Motion
    to Further Amend,
    December
    10,
    1986).
    Classic
    is believed
    to be the only facility engaged
    in such coating in Illinois,
    as
    this term is defined.
    The Agency and Classic both agreed that
    these proposed amendments to Section 215.204(c)
    better reflect
    RACT for this special subcategory of paper coating.
    The Board proposed for first notice the amendments to
    Section 215.204(c) which provide special limitations reflecting
    RACT for the specialty high gloss catalyzed coating industry.
    The Board found that Classic had made
    a showing that the
    limitations of
    Section 215.204
    as modified by the Agency’s
    proposal to exclude exempt solvents would
    not be RACT for this
    84—756

    —13—
    special category
    of paper coating
    in Illinois.
    The Board
    concluded that the record adequately supports special limitations
    that should
    be federally approvable.
    V.
    Section 215.207
    Aggregation
    of
    Emission Sources
    The Agency proposed
    to amend existing Section 215.207,
    Internal Offsets,
    by changing the method
    of calculation of VOM
    from
    a volumetric basis to a solids basis,
    as well
    as
    to
    generally revise the rule.
    The Agency proposed
    to amend Section
    215.207 by:
    1)
    changing the heading
    of
    the section to make
    it
    more descriptive
    of the actual
    intent and
    to avoid confusion with
    offsets under Part 203 and the Prevention of Significant
    Deterioration
    (“PSD”) program;
    2) substituting language parallel
    to Section 215.205
    in paragraph
    (a)
    in order
    to reference the
    emission limitations
    of Section 215.204;
    3) clarifying language
    and use of abbreviations;
    4)
    including
    a formula for converting
    from lb/gal
    (from Section 215.204)
    to lb/gal solids, for the
    purposes
    of calculating compliance to Section 215.207;
    and
    5)
    amending the definition
    of the symbols
    B and
    n
    as used
    in the two
    formulae.
    It is worthwhile
    to briefly review the history of Section
    215.207 and the genesis
    of the Agency’s proposal.
    The internal
    offset rule was adopted
    in the RACT
    I (R78—3,4) proceeding and
    was conditionally approved by USEPA
    as a SIP revision
    (45 FR
    11482,
    Ex.
    2).
    However, USEPA subsequently proposed
    to
    ~disapprove the rule after
    finding an error
    in the specified
    equation
    (50
    FR
    28226,
    Ex.
    89, Attachment 1).
    The Agency
    originally proposed to revise Section 215.207
    in the original
    proposal which
    initiated the instant proceeding on June 29,
    1982
    (Ex.
    1).
    The amendments to Section 215.207 were originally
    proposed to make the Illinois regulation consistent with federal
    policy.
    USEPA guidelines
    indicated
    a problem
    in calculating
    equivalence when control equipment,
    rather than high solids or
    water—based coatings, was used
    to achieve compliance.
    Therefore,
    the amendments required calculation of emissions expressed in
    terms
    of the mass
    of VOM per volume
    of solids consumed.
    Early
    in the proceeding,
    the Agency found
    no plants using
    Section 215.207 as
    a basis
    for compliance that would exceed the
    limitations based
    on the revised calculation.
    However, sub-
    sequently the Agency determined that there might be plants which
    would
    not comply with the amended rule,
    if adopted.
    Consequent-
    ly,
    the Agency recommended
    in its comments on the Board’s First
    Notice Order
    of August,
    1984,
    that the Board defer action on this
    section until the data on affected plants was reviewed
    (P.C.
    57).
    On August 23,
    1985, the Agency filed
    a motion
    to
    reopen the
    record concerning, among other sections, Section 215.207,
    after
    the Agency’s search for affected plants had been completed
    (Ex.
    86).
    On November
    22,
    1985, the Agency further amended proposed
    84—757

    —14—
    Section 215.207
    (Ex.
    87).
    Hearings
    were
    held
    on the Agency’s
    amended proposal on December
    2,
    1985;
    March 20—21,
    1986; August
    4
    and
    7,
    1986;
    September 3—4,
    1986; October
    30,
    1986;
    and November
    7,
    1986.
    The DENR filed an EcIS addressing,
    in part, proposed
    amendments to Section 215.207
    on March 13,
    1987
    (Ex.
    142).
    EcIS
    hearings were held on May 8
    and 22,
    1987.
    Section 215.207, both existing and as proposed
    to be
    amended, provides
    an alternative means
    of compliance with the
    emission limitations of Section 215.204 by offsetting overcomply—
    ing VOM emission sources with undercomplying VOM emission
    sources.
    For the purposes of illustration, suppose
    a coating
    facility operates
    two coating lines.
    The first line
    is able to
    “overcomply,”
    i.e.,
    it not only achieves,
    but surpasses the
    applicable VOM emission limits and
    thus generates an emissions
    credit.
    The second coating line is not
    in compliance but
    operates
    in excess
    of the applicable VOM standards.
    Under
    an
    offset,
    bubble
    or aggregation rule,
    the facility may
    be able to
    come into compliance by balancing its “credits” for overcom—
    pliance against the excess VOM emissions from its undercomplying
    coating
    line.
    Section
    215.207 allows an alternative means
    of
    compliance with Section
    215.204
    by aggregating emissions across
    different coatings and coating lines
    at each facility.
    Section
    215.207
    provides
    the framework,
    restrictions and
    equations
    for calculating compliance through offsetting or
    aggregating sources.
    Emission credits can be generated from
    overcomplying coatings, add—on control equipment or even
    elimination of certain VOM emission generating sources within
    a
    facility.
    Section 215.207 affects
    a variety of sources and
    is
    implemented
    in
    a unique way at each facility.
    The rule allows
    a
    certain flexibility
    in complying with the emission limitations
    of
    Section 215.204 and represents
    a compromise between line—by—line
    compliance and technical and economic feasibility.
    At the state
    level,
    Section 215.207 relates back to the limitations
    in Section
    215.204 which represent RACT for various coating categories.
    At
    the federal
    level, the USEPA considers compliance under Section
    215.207 to
    be within the scope
    of the federal Bubble Policy.
    Compliance plans and permits for facilities
    located
    in areas
    designated
    as non—attainment for ozone which are based on Section
    215.207 must be submitted as SIP amendments
    to USEPA.
    The
    general
    rule itself
    is also
    a part of the SIP and any amendment
    to the general rule requires amending the SIP.
    The Agency,
    in support of
    its proposal, contended that USEPA
    has found existing Section
    215.207 to be deficient because of
    the
    way
    in which the determination
    of allowable emission is made.
    The present rule contains a mathematical formula based on the
    total—volume of
    coating used,
    as distinguished from solids
    present
    in the coating.
    Technically,
    this deficiency causes the
    rule
    to give results
    in certain circumstances which are not
    equivalent
    to the emission limitations
    of Section 215.204.
    This
    84—758

    —15—
    is because the total—volume calculation does not consider the
    two—fold effect
    of the
    limits of Section 215.204.
    Not only do
    these limits reduce the amount of organic material
    in each gallon
    of coating,
    but they also may reduce the total gallons
    of coating
    which must be used.
    The less organic material or solvent
    contained
    in
    a coating, the more pigment, resin,
    binders, etc.,
    commonly known as solids.
    Thus,
    fewer actual gallons
    of
    a
    compliance
    coating will probably be needed than were used before.
    The substantive change
    in the proposed rule was intended
    to
    correct this deficiency
    in calculation method.
    This correction
    also necessitates the addition of
    a formula to convert the limits
    of Section 215.204
    into equivalent solids—basis limits, and
    development
    of the recordkeeping requirement to include data on a
    solids—basis.
    Section 215.207 has been considered deficient by USEPA
    for
    some period
    of time.
    The rule was originally submitted to the
    USEPA
    in 1979,
    as part of
    Rule 205(n).
    Upon submission of
    the
    rule
    (now codified as 215.207)
    as
    a part of proposed RACT II,
    the
    USEPA clarified the true deficiency of the rule:
    the equation
    concerning
    the
    internal
    offset
    provision
    contained
    the
    error
    previously discussed.
    Hence,
    in order for the rule to be
    approved as
    a SIP revision,
    it must conform with the consistently
    endorsed method
    of solids—based calculations.
    A further justification of the proposed amendment is that
    the volume—based calculations now
    in place may lead
    to emissions
    levels which are also potentially inequitable.
    The solids—based
    calculations provide allowable emissions which are fixed and do
    not change with differing compliance options
    (reformulation,
    control equipment,
    etc.).
    However,
    it may
    be the case that
    the
    total—volume method will yield emissions limits which
    are not
    equivalent
    to those specified
    in Section 215.204, depending upon
    the compliance option chosen.
    Hence,
    the potential for inequity
    is present,
    in that facilities choosing certain compliance
    options may be allowed higher emissions than similar facilities
    choosing less “advantageous” options.
    Many facilities use Section 215.207 throughout the state.
    However,
    only
    a handful of facilities were identified as possibly
    having their compliance status affected by the proposed change
    from volumetric to solids calculation.
    During the course of
    these proceedings, Allied Tube and Conduit
    of Harvey, which had
    been identified
    as having its compliance status affected by the
    proposed
    rule change,
    achieved
    a technological breakthrough that
    results
    in line—by—line compliance.
    Consequently,
    this facility
    is no longer affected by the proposed change.
    Duo Fast utilized
    existing
    Section
    215.207 to
    achieve
    compliance and would have
    been affected by the proposed change.
    However, through a com-
    bination of
    a technological break
    in the area of
    “combi—cements”
    and the special proposed emission limitations for power driven
    84—759

    —16—
    fastener coating,
    Duo Fast
    is no longer affected by the proposed
    amendment.
    The Minnesota Mining and Manufacturing Company
    (3M) utilizes
    Section 215.207
    to achieve compliance at its Bedford Park
    facility.
    3M believed
    it could comply with the solids—basis
    calculation but proposed
    a site—specific rule as an alternative
    to proposed Section 215.207
    (Ex.
    98).
    By joint motion dated June
    30,
    1987,
    the Agency and
    3M requested that the record remain open
    until July 30, 1987,
    regarding the 3M site—specific proposal.
    Consequently,
    the Board deferred action on 3M’s proposal pending
    further informational development by
    the Agency and
    3M.
    The
    impact of proposed Section 215.207 on
    3M was not addressed in the
    instant opinion and order,
    but was similarly deferred.
    3M’s
    proposed site—specific rule was addressed in the Board’s Opinion
    and Order dated December
    3,
    1987.
    The primary argument against the solids—basis type of
    calculation
    is made by Duo Fast regarding the nature
    of polymer
    coatings wherein the solids are inextricably tied in with the
    solvent
    (either VOM or exempt).
    Based on this,
    the Duo Fast
    testimony of D.J. Kurr
    (R. 4659—4660) poses the question:
    “How
    is
    it valid
    to make
    an
    ‘after
    the
    fact’
    assumption
    regarding volume
    solids
    applied
    in
    the state of
    a solvent free condition when the
    Rule
    makes
    a
    very
    specific
    requirement
    specifying the coating condition as
    ‘delivered
    to tFieCoating Applicator’?”
    Duo Fast
    has
    presented
    a
    compelling
    point,
    as
    the solids based
    calculation would apply to
    its unique polymer coatings.
    However,
    the proposed special power driven fastener emission limitations
    proposed today appear
    to take this uniqueness
    into account.
    There
    is
    rio evidence
    in the record that the other facilities
    that
    utilize Section 215.207 will
    be similarly affected by the
    proposed change.
    The record does indicate that since the solvent
    is finally released from the substrate on curing or drying,
    the
    Agency’s arguments for
    a solids—based calculation are still
    valid.
    In terms
    of emission of VOM,
    the solids—based
    calculations appear preferable to the existing volumetric method.
    The Board found that the proposed amendments to Section
    215.207 corrects an error
    in the existing
    rule and results
    in an
    accurate calculation of PACT limitations.
    The Board proposed
    this rule for first notice comment.
    The Board concluded that
    this action would help to remedy any possible SIP deficiencies
    and avoid sanctions under
    the CAA.
    In reviewing the Agency’s
    proposal, the Board noted certain potential problems in the
    current drafting of the rule.
    In the proposed Section
    215.207(a),
    it states that “methods
    or procedures used
    to
    84—760

    —17—
    determine emissions of VOM under
    this Section shall be approved
    by the Agency.”
    These methods and procedures
    are not specified
    and need to be addressed by
    the Agency.
    The Board expressed
    concerns regarding the JCAR approvability of this language.
    Section 215.207(a)
    also uses the term “selected coating lines”
    to
    replace the term “all coating lines.”
    It
    is not clear what the
    basis of the selection is or who selects the lines that will
    be
    subjected
    to the limitations
    of the section.
    The Board requested
    the Agency to address this topic
    as well.
    The Board concluded
    that based on the May 20,
    1987, Agency Response to Hearing
    Officer Order,
    the definition for the term Ri
    in Section
    215.207(c)
    should
    be changed
    as follows
    to be consistent with the
    proposed interpretation of gallon of coating
    in Section 215.204:
    R~
    =
    the applicable volatile organic material
    emission
    limit
    pursuant
    to
    Section
    215.204,
    for
    a coating in Kg/i
    (lb/gal)
    Additionally, the Board concluded that adding “volatile
    organic material” before the word “emissions”
    in the definitional
    terms EA
    ,
    E~
    ,
    Ri and Si would help to clarify those terms
    in
    Section ~5.2t~9~c).
    FIRST NOTICE HISTORY
    On July 16,
    1987,
    the Board proposed regulatory amendments
    to Section 211.122, 215.204,
    215.205 and 215.207 for first notice
    comment which were published at
    11 111.
    Reg.
    12811 and
    12835,
    August
    7, 198T.~The statutory 45—day comment period ended on
    September 21,
    1987.
    The Board posed additional questions for the
    participants
    to comment on through
    a hearing officer order,
    dated
    August
    27, 1987.
    Non—substantive comments were received
    from the
    Secretary of State’s Administrative Code Unit regarding form and
    format of the proposed rules.
    Those changes were made at second
    notice.
    Four substantive comments were received regarding the
    proposed amendments.
    In a letter filed September
    22,
    1987, the Minnesota Mining
    &
    Manufacturing Company
    (3M)
    requested that the hearing officer
    extend the first notice comment period for the proposed
    amendments until October
    10,
    1987.
    The Agency filed a motion to
    deny 3M’s request on September
    29,
    1987.
    The hearing officer
    referred this matter to the Board as
    it would impact the timing
    of
    the Board’s decision in this matter.
    The Board denied 3M’s
    request.
    First,
    the Board determined that the request was
    untimely,
    as the statutory 45—day comment period ended on
    September
    21,
    1987.
    Second, the Board concluded that
    to allow 3M
    an additional opportunity to comment on not only the proposed
    amendments,
    but the Agency’s timely filed comments
    as well, would
    not
    be evenhanded
    or fair.
    Finally,
    the additional two to three
    weeks delay that granting 3M’s request would cause was
    unacceptable
    to the Board.
    The Board explained
    that
    it
    is
    84—761

    —18—
    attempting
    to proceed with regulations controlling ozone
    precursors
    as quickly as fairness and the requirements of the
    Environmental Protection Act and the Administrative Procedures
    Act permit.
    The federal deadline for achievement of the National
    Ambient Air Quality Standard
    for Ozone
    is December
    31,
    1987.
    The
    Board and the Agency have expended considerable efforts
    to
    promulgate final
    rules by that date.
    Further delay
    in this
    proceeding could very well defeat that goal.
    The Board clarified
    that the instant Opinion and Order did not address the site—
    specific amendment proposed by 3M for
    its Bedford Park
    facility.
    This action only addresses the proposed amendments to
    the
    rules of general applicability.
    On December
    3,
    1987,
    3M
    filed a Motion
    to Redocket its site—specific proposal.
    The
    motion was denied by the Board. The 3M site—specific proposal was
    addressed
    in the Board’s Opinion and Order dated December
    3,
    1987.
    The first commenter
    raised two issues regarding certain
    language
    in the Opinion of July 16,
    1987
    (P.C.
    115).
    First,
    the
    commenter asserted that the United States Environmental
    Protection Agency’s
    (USEPA) position regarding defects in
    existing Section 215.207 is not
    as clear
    as the Board’s opinion
    may lead one
    to believe.
    The commenter suggested that the
    existing rule was approved
    in 1980 by USEPA without condition.
    However, even the commenter conceded that subsequent action by
    USEPA,
    in the form of testimony
    in Board proceedings and formal
    comment on the State’s RACT
    II package,
    does make USEPA’s
    position clear.
    The Board conceded that the issue has been
    -
    debated
    in the context of this proceeding as well as
    in variances
    and permit appeals.
    The Board concluded that while
    the issue may
    not have been crystal clear in the early 1980’s,
    it certainly is
    clear
    today.
    The Board found that the record in the proceeding
    supports both the wisdom and necessity of modifying Section
    215.207.
    The commenter’s second
    issue was whether or not compliance
    plans based on Section 215.207 need to be submitted to USEPA
    as
    State Implementation Plan (SIP)
    revisions under USEPA’s “bubble
    policy”
    (P.C.
    115).
    The Board,
    itself,
    was concerned with these
    issues and requested additional comments
    in the August 27, 1987,
    Hearing Officer Order.
    It is apparent from the record before the
    Board that USEPA’s position has fluctuated wildly on this
    issue.
    The commenter accurately noted that USEPA’s policy “has
    not been as clear as the opinion might be read
    to suggest.”
    However, while this issue
    is obviously very important to
    facilities presently utilizing Section 215.207 to achieve
    compliance with PACT coating limitations,
    it
    is tangential to the
    issues presently before the Board
    in this proceeding.
    The Board
    explained that
    it
    is
    in the process of amending its
    regulations.
    The issue of how the rule will be implemented by
    other agencies
    of government may or may not come before this
    Board.
    The Board concluded
    that
    if and when such issues are
    84—762

    —19—
    presented to the Board for adjudication,
    the wisdom and legality
    of the rules’
    implementation can be appropriately addressed at
    that time.
    The second commenter noted two typographical errors in the
    proposed amendments to Section 211.122, the definition of “Power
    Driven Fastener Coatings”
    (P.C.
    116).
    First,
    in line
    3 of the
    definition
    “0.254
    inch” should read “0.0254 inch.”
    Second,
    in
    line 14
    of
    the definition “Counsel” should
    be “Council.”
    These
    corrections were made at second notice.
    The third commenter responded to the questions posed
    in
    the
    August 27,
    1987,
    Hearing Officer Order regarding
    the interpreta-
    tion of the internal offset rule,
    Section 215.207,
    and the
    applicability of the USEPA federal bubble policy.
    The commenter
    utilizes existing Section 215.207 to achieve compliance with
    the
    PACT coating limitations.
    The proposed amendment to Section
    215.207 will not impact the commenter’s compliance status.
    However,
    the commenter is the subject
    of
    a USEPA enforcement
    action.
    The commenter’s Section 215.207 compliance plan was
    never submitted as
    a SIP revision to USEPA.
    As previously noted,
    USEPA’s position on the necessity of submittal of such permits as
    SIP revisions has been confusing and inconsistent.
    The commeriter
    urged that the Board not take any action
    to revoke or qualify the
    protections available under Section 215.207 on which many
    companies have relied.
    The Board noted that by amending Section
    215.207,
    it
    is changing the content of the
    rule.
    However, the
    Board held that the principles, requirements and conditions
    embodied
    in
    the, December
    6,
    1986,
    federal
    “bubble policy” are not
    expressly incorporated
    in the language of the amended rule.
    The
    Board noted that
    it may be argued that consistency with the
    federal “bubble policy” may be necessary to comply with federal
    law or policy.
    The Board, however, made no such holding.
    The Illinois Environmental Protection Agency
    (Agency) filed
    comments responding
    to questions posed both in the July 16,
    1987,
    first notice opinion and
    in the August
    27,
    1987, Hearing Officer
    Order
    (P.C.
    119).
    The Agency also supplemented the record with
    various newspaper articles and documents regarding ozone
    attainment and the SIP process.
    The Agency responded
    to the Board’s request for
    justification
    of the proposed language
    in Section 215.207(a)
    that
    reads:
    “methods
    or procedures used to determine emission of VOM
    under this Section shall be approved by the Agency.”
    First,
    the
    Agency responded that this language was copied from Section
    215.205 for consistency and also because
    it has already been
    found acceptable by the Board
    for Section 215.205.
    Second,
    this
    language does not authorize the Agency to change existing test
    methods already adopted by the Board.
    Third,
    this language
    enables the Agency to review elements of compliance procedures
    not otherwise addressed by Board rules,
    and
    to formalize
    84—763

    —20—
    procedures
    to
    be
    followed
    or formalize Agency acceptance of
    procedures submitted by
    a company,
    in permit conditions.
    The
    Agency noted
    that these procedures address items that the Agency
    must examine
    in the permitting process
    in order
    to determine the
    adequacy of the application and the compliance status of
    the
    company, such as selected coating
    lines, calculation procedures,
    frequency of
    sampling, verification
    of control equipment
    efficiency,
    extent
    of material usage records, nature
    of
    documentation on coating VOM content,
    and availability
    of
    records.
    The nature of these procedures can vary greatly
    depending upon the particular circumstances
    of a company,
    e.g.,
    the
    margin
    of
    compliance,
    the
    equipment
    present,
    and
    the
    nature
    of
    existing
    production
    records.
    Fourth,
    in
    the
    absence
    of
    prior
    review
    by
    the
    Agency
    in
    the
    permitting
    process,
    a
    company
    could
    believe
    that
    it was satisfying the requirements of Section
    215.207.
    However, the Agency could consider the company not to
    be in compliance for failure
    to adequately address
    the
    requirements
    of Section 215.102, Section 215.207(a),
    Section
    215.207(c),
    or Section 215.208.
    The Agency’s proposed language
    protects a company by drawing attention
    to the fact that the
    methods and procedures must be presented
    to and approved by the
    Agency.
    The Agency reminded the Board that Agency determinations
    made
    in
    the permitting process are subject
    to appeal and review
    by the Board in
    a permit denial appeal.
    The Board found the Agency’s justification persuasive.
    The
    implementation of Section 215.207 as
    a compliance option varies
    with each and every facility.
    Section 215.207 is intended to
    provide
    a flexible alternative
    to line—by—line compliance with
    the emission limitations
    of Section
    215.204, with certain
    restrictions.
    Inherent in its approach is
    a requirement of
    flexibility
    in Agency review and implementation.
    The Board
    concluded that it
    is not possible
    to write a coherent
    rule that
    envisions all contingencies and potential applications.
    Therefore,
    in the limited context
    of these
    rules,
    the Board
    concluded
    that the “shall be approved by the Agency” language
    is
    appropriate and necessary.
    Concerning the Board’s
    request for clarification regarding
    the use of the language “selected coating lines”
    in proposed
    Section 215.207(a),
    the Agency responded that the selection of
    the coating lines
    is made by the permit applicant.
    The intended
    basis of
    the selection is for the company
    to demonstrate
    compliance with
    a minimum number of coating lines.
    The Board
    acknowledged this clarification.
    In the July 16,
    1987, Opinion,
    the Board suggested certain
    modifications
    in Section 215.207 to the definitions of R~,E~JJL,
    EACTand S~. The Agency concurred with these suggested changes as
    they are consistent with the Agency’s intent and help clarify the
    rule.
    These changes were made at second notice.
    84—764

    —21—
    In
    response
    to
    questions
    posed
    in
    the
    August
    27,
    1987,
    Hearing
    Officer
    Order,
    the
    Agency
    stated
    that
    56
    permits
    based
    on
    Section 215.207 have been issued.
    Of these,
    46 are
    in ozone non—
    attainment
    areas
    and
    10
    are
    in
    attainment
    areas,
    including
    four
    in
    McHenry
    or
    Will
    County.
    The
    Agency
    has
    not
    submitted
    any
    of
    the permits based
    on existing Section 215.207
    to the USEPA
    as
    formal amendments or
    revisions
    to the Illinois SIP
    for ozone.
    The Agency contended that the proposed amendments to Section
    215.207 are “pending” before USEPA.
    Commenting generally about the language of Attachment
    3 and
    the federal Emissions Trading Policy,
    the Agency reminded the
    Board that Section
    215.207 was conditionally approved by USEPA
    in
    1980.
    As
    an approved rule that
    is part of Illinois’
    SIP, any
    company
    can avail themselves of the
    regulation.
    The Agency’s
    proposed Section 215.207 was sent to USEPA for parallel
    processing
    as
    a SIP revision on September
    5,
    1985.
    The Agency
    noted that
    if the Agency’s proposed Section 215.207 is adopted by
    the Board,
    USEPA should approve
    it
    since
    it corrects the flaw in
    the regulation
    (volumetric calculations) which has been
    identified
    by USEPA.
    The Agency concluded that companies should
    continue
    to
    be
    able
    to
    avail
    themselves
    of
    this
    regulation
    in
    the
    future.
    The Agency conceded that the amendments to Section 215.207
    presently
    pending
    do
    not
    conform
    to
    the
    federal
    “bubble
    policy”
    of
    December
    6,
    1986.
    However,
    the Agency did not suggest that
    Section
    215.207
    be
    further
    modified
    at
    this
    time.
    The
    Agency
    contended
    that
    the
    amendments
    presently
    pending
    will
    correct
    a
    long—standing deficiency and will
    be responsive to USEPA’s
    present
    concerns.
    The
    Agency
    suggested
    that
    Section
    215.207
    may,
    at
    some
    future
    time,
    need
    to
    be
    further
    modified
    to
    be
    consistent
    with
    federal
    policy.
    The
    Agency
    expressed
    the
    opinion
    that
    the
    amendments to Section 215.207 pending before the Board would be
    approved by USEPA.
    If and when the Agency receives
    a SIP
    deficiency notice from USEPA regarding consistency with the
    federal
    “bubble policy”,
    it will consider further amendment.
    The Board concluded that
    the Agency’s suggested course
    of
    action was
    a prudent one under the circumstances.
    The Board
    noted that the federal “bubble policy”
    is relatively new and its
    incorporation or implementation in presently pending amendments
    to Section 215.207 is not presently at issue
    in this
    proceeding.
    The Board concluded that the proposed amendments
    will help fulfill the state’s obligations under the Clean Air Act
    and avoid federal sanctions.
    The Board,
    therefore,
    directed the
    Clerk
    of the Board
    to submit the proposed amendments to Sections
    211.122, 215.204,
    215.205 and 215.207 for second notice review by
    the Joint Committee on Administrative Rules.
    84—765

    —22—
    SECOND NOTICE CHANGES
    On October
    1,
    1987, the Board adopted an Opinion and Order
    sending the proposed amendments to Second Notice
    for review by
    the Joint Committee on Administrative Rules
    (“JCAR”).
    The Second
    Notice period commenced on October
    29,
    1987.
    The JCAR staff
    suggested several non—sbustantive
    changes, all
    of whichh have
    been incorporated
    in the Final Notice Order.
    At its November
    19,
    1987, meeting, JCAR formally objected
    to the amendments to Parts
    211 and 215 insofar
    as the regulatory flexibility analysis
    is
    concerned.
    The JCAR objection was based on its belief that “not
    applicable” was an inappropriate response to the regulatory
    flexibility analysis question.
    The Board, by Resolution adopted today,
    has declined to
    modify the rulemaking so as
    to comply with the JCAR objection.
    Although
    “not applicable” may not be an appropriate response,
    the
    Board believes that the response will have no adverse effect and,
    further, that final action must be taken
    to comply with deadlines
    imposed by the Clean Air Act
    (42 CFR U.S.C. 7401 et seq.).
    Notice of
    the refusal
    to modify will
    be submitted
    to JCAR and to
    the Secretary of State for publication
    in the Illinois Register.
    Also at its November 19,
    1987 meeting, JCAR discussed the
    issue
    of incorporation by reference of federal guidelines
    in the
    amendments
    to Part 211.
    Rather than issuing an objection, JCAR
    voted
    to postpone further consideration
    of this issue to allow
    the Board
    to submit for its approval, pursuant to Section 6.02(b)
    of the Illinois Administrative Procedure Act
    (“IAPA”), the
    guidelines
    of the United States General Services Administration
    and Federal Housing Administration that are incorporated by
    reference in Section 211.122 of
    the Board’s rules.
    On December
    1,
    1987,
    the Board sent the appropriate documents that are
    incorporated by reference
    in Section 211.122
    to JCAR for
    approval.
    On December
    17,
    1987, JCAR approved incorporation by
    reference of
    the guidelines
    of
    the United States General Services
    Administration and Federal Housing Administration.
    JCAR’s
    approval on December
    17,
    1987 was
    in response to
    the Board’s
    submittal of these documents pursuant to Section 6.02(b)
    of the
    IAPA.
    Therefore,
    the Board has modified Section 211.122 of
    the
    Board’s
    rules so as
    to “fully identify the incorporated matter by
    location and date,
    and has stated that the guideline or standard
    does not include
    any later amendments or editions”
    in accordance
    with Section 6.02(b)
    of the IAPA and
    1
    Ill. Adm. Code Section
    220.780.
    All
    of the non—sbustantive changes recommended by JCAR have
    been adopted.
    Specific changes are as follows:
    1.
    To
    include
    at
    the
    end
    of
    the
    second
    sentence
    in
    Section
    215.207(a)
    “in
    accordance with 35
    Ill.
    Adm. Code 201”;
    84—766

    —23—
    2.
    To
    include
    a
    hyphen
    in
    the
    division
    of
    the
    word
    “subsection”
    in
    Section
    215.204(c) (1);
    3.
    To
    include
    a
    hyphen
    in
    the
    division
    of
    the
    word
    “fabrication”
    in
    Section
    215.204(j) (4) (E)
    ;
    and
    4.
    To
    word
    Section
    215.207(c)
    to
    read
    “as
    used in subsections
    (a)
    and
    (b).”
    ORDER
    The Clerk
    of the Pollution Control Board
    is directed to
    submit the following adopted rules
    to the Secretary of State for
    Final Notice:
    TITLE
    35:
    ENVIRONMENTAL PROTECTION
    SUBTITLE
    B:
    AIR POLLUTION
    CHAPTER
    I:
    POLLUTION CONTROL BOARD
    SUBCHAPTER
    C:
    EMISSION STANDARDS
    AND
    LIMITATIONS
    FOR STATIONARY SOURCES
    PART 211
    DEFINITIONS AND GENERAL PROVISIONS
    SUBPART A:
    GENERAL PROVISIONS
    Section
    211.101
    Incorporations by Reference
    211.102
    Abbreviations
    and Units
    SUBPART B:
    DEFINITIONS
    Section
    211.121
    Other Definitions
    211.122
    Definitions
    Section 211.122
    Definitions
    “Power Driven Fastener Coating”:
    The coating of nail,
    staple,
    brad and finish nail fasteners where such
    tasteners are fabricated from wire or rod
    of 0.0254
    inch
    diameter
    or greater, where such fasteners are bonded
    into coils
    or strips,
    such coils and strips containing
    a
    number
    of such fasteners,
    which fasteners are manufac-
    tured
    for use
    in power
    tools,
    and which fasteners must
    conform with formal standards
    for specific uses estab—
    lished by various federal and national organizations
    including Federal Specification FF—N—lO5b of the General
    84—767

    —24—
    Services
    Administration
    dated
    August
    23,
    1977
    (does
    not
    include
    any
    later
    amendments
    or
    editions;
    U.S.
    Army
    Armament
    Research
    and Development Command, Attn:
    DRDAR—
    TST, Rock
    Island, IL 61201), Bulletin UM—25d
    of
    the U.S.
    Department of Housing
    and Urban Development
    Federal
    Housing Administration dated September
    5,
    1973
    (does not
    include any later amendments
    or editions; Department of
    HUD,
    547 W. Jackson Blvd.,
    Room 1005, Chicago,
    IL
    60606),
    and the Model Building Code of the Council
    of
    American Building Officials,
    and similar standards.
    For
    the purposes of this definition,
    the terms
    “brad” and
    “finish nail”
    refer
    to single
    leg fasteners fabricated
    in
    the same manner
    as staples.
    The application of
    coatings
    to staple, brad,
    and finish nail fasteners may
    be associated with the incremental forming of such
    fasteners
    in
    a cyclic or repetitious manner (incremental
    fabrication) or with the forming of strips
    of such
    fasteners as
    a unit from
    a
    band of wires
    (unit
    fabrication).
    “Specialty High Gloss Catalyzed Coating”:
    commercial
    contract finishing
    of material prepared
    for printers and
    lithographers where the finishing process uses
    a
    solvent—borne coating,
    formulated with
    a catalyst,
    in
    a
    ~uantity
    of
    no more than 12,000 gallons/year as
    supplied, where the coating machines are sheet fed and
    the coated sheets are brought
    to
    a minimum surface
    temperature of
    190
    F., and where the coated sheets are
    to achieve
    the minimum specular reflectance
    index of
    65
    measured
    at a
    60 degree angle with
    a gloss meter.
    (Source:
    Amended
    at
    111. Reg.
    ________,
    effective
    ___________
    TITLE
    35:
    ENVIRONMENTAL PROTECTION
    SUBTITLE
    B:
    AIR
    POLLUTION
    CHAPTER
    I:
    POLLUTION
    CONTROL
    BOARD
    SUBCHAPTER
    c:
    EMISSION STANDARDS AND
    LIMITATIONS
    FOR
    STATIONARY
    SOURCES
    PART 215
    ORGANIC
    MATERIAL
    EMISSION
    STANDARDS
    AND
    LIMITATIONS
    SUBPART
    F:
    COATING
    OPERATIONS
    Section
    215.202
    Compliance
    Schedules
    215.204
    Emission
    Limitations
    for
    Manufacturing
    Plants
    215.205
    Alternative
    Emission
    Limitations
    215.206
    Exemptions
    from
    Emission
    Limitations
    215.207
    ~r~a3~
    O?~e~&Compliance by Aggregation
    of Emission
    Sources
    84—768

    —25—
    215.208
    Testing
    Methods
    for
    Solvent
    Content
    215.209
    Exemption
    from
    General
    Rule
    on
    Use
    of
    Organic
    Material
    215.210
    Alternative Compliance Schedule
    215.211
    Compliance Dates and Geographical Areas
    215.212
    Compliance Plan
    215.213
    Special Requirements for Compliance Plan
    Section 215.204
    Emission Limitations
    for Manufacturing Plants
    No owner
    or operator
    of
    a coating line shall cause or allow
    the
    emission
    of
    volatile
    organic
    material
    to
    exceed
    the
    following
    limitations
    on
    coating
    materials,
    excluding
    water
    and
    any
    compounds which are specifically exempted from the definition
    of
    volatile organic material pursuant to this Part, delivered to the
    coating applicator:
    a)
    Automobile or Light Duty Truck Manufacturing Plants
    1)
    In Cook County
    kg/i
    lb/gal
    Prime coat
    0.14
    (1.2)
    Prime surfacer coat
    0.34
    (2.8)
    (Board Note:
    The prime surfacer coat limitation is
    based upon
    a transfer efficiency of
    30 percent.
    The prime surfacer coat limitation shall not apply
    until December
    31,
    1982.)
    Top coat
    0.34
    (2.8)
    (Board Note:
    The limitation
    is based upon a
    transfer efficiency of
    30 percent.
    The top coat
    limitation shall not apply until December
    31,
    1985.)
    Final repair
    coat
    0.58
    (4.8)
    (Board Note:
    The limitation shall not apply until
    December
    31, 1985)
    2)
    In Boone County
    Prime Coat
    0.14
    (1.2)
    Prime coat surfacer
    0.34
    (2.8)
    Top coat
    0.34
    (2.8)
    (Board Note:
    The top coat limitation shall not
    apply
    if
    by December
    31,
    1984,
    a limitation of 0.43
    kg/l
    (3.6 lb/gal)
    is achieved and the top coat is
    applied with
    a transfer efficiency of not less than
    55 percent and by December
    31,
    1986,
    the top coat
    is applied with a transfer efficiency of not less
    than 65 percent)
    84—7 69

    —26—
    Final
    repair coat
    3)
    In the remaining counties
    Prime
    coat
    Prime surfacer coat
    Top coat
    Final
    repair
    coat
    b)
    Can Coating
    1)
    Sheet basecoat and
    Overvarnish
    0.34
    (2.8)
    2)
    Exterior basecoat
    and overvarnish
    0.34
    (2.8)
    3)
    Interior body spray
    coat
    0.51
    (4.2)
    4)
    Exterior
    end coat
    0.51
    (4.2)
    5)
    Side seam spray coat
    0.66
    (5.5)
    6)
    End
    sealing
    compound coat
    0.44
    (3.7)
    c)
    Paper Coating
    1)
    All paper coating except
    as provided
    in sub-
    section (c)(2)
    0.35
    (2.9)
    2)
    Specialty High Gloss
    Catalyzed
    Coating
    0.42
    (3.5)
    (Board Note:
    The These limitations shall not apply to
    equipment used for both printing and paper coating)
    d)
    Coil Coating
    0.31
    (2.6)
    e)
    Fabric Coating
    0.35
    (2.9)
    f)
    Vinyl Coating
    0.45
    (3.8)
    g)
    Metal Furniture Coating
    0.36
    (3.0)
    h)
    Large Appliance Coating
    0.34
    (2.8)
    (Board Note:
    The limitation shall not apply
    to the use
    of quick—drying lacquers for repair
    of scratches and
    nicks that occur during assembly, provided that the
    0.58
    0.14
    0.34
    0.34
    0.58
    (4.8)
    (1.2)
    (2.8)
    (2.8)
    (4.8)
    84—770

    volume
    of coating does
    not exceed 0.95 liters
    (1 quart)
    in any one eight—hour period)
    i)
    Magnet Wire Coating
    0.20
    (1.7)
    j)
    Miscellaneous Metal Parts
    and Products Coating
    1)
    Clear coating
    0.52
    (4.3)
    2)
    Air dries coating
    0.42
    (3.5)
    3)
    Extreme performance
    coating
    0.42
    (3.5)
    4)
    Power driven fastener coating
    A)
    Nail coating
    Refer
    to limits
    in
    (j)(l),
    (2),
    (3)
    and
    (5)
    B)
    Staple, brad and fin-
    ish nail unit fabri-
    cation bonding
    coating
    0.64
    (5.3)
    C)
    Staple, brad and fin-
    ish nail incremental
    fabrication lubri-
    city coating
    0.64
    (5.3)
    ID)
    Staple, brad and fin-
    ish nail incremental
    fabrication withdrawal
    resistance coating
    0.60
    (5.0)
    E)
    Staple, brad and fin-
    ish nail unit fabri—
    catfon coating
    0.64
    (5.3)
    45)
    All other
    co::.
    ~gs
    0.36
    (3.0)
    (Board Note:
    The least restrictive limitation shall
    apply
    if
    more
    than
    one
    limitation
    pertains
    to
    a
    specific
    coating)
    k)
    Heavy Off—highway Vehicle
    Products
    1)
    Extreme performance
    prime coat
    0.42
    (3.5)
    84—77 1

    —28—
    2)
    Extreme performance
    top coat—air dried
    0.52
    (4.3)
    3)
    Final repair coat—
    air dried
    0.58
    (4.8)
    1)
    Wood Furniture Coating
    1)
    Clear topcoat
    0.67
    (5.6)
    2)
    Opaque stain
    0.56
    (4.7)
    3)
    Pigmented coat
    0.60
    (5.0)
    4)
    Repair coat
    0.67
    (5.6)
    5)
    Sealer
    0.67
    (5.6)
    6)
    Semi—transparent stain
    0.79
    (6.6)
    7)
    Wash coat
    0.73
    (6.1)
    (Board Note:
    The repair coat has overall transfer
    efficiency of 30 percent;
    all others have an overall
    transfer efficiency of 65 percent.)
    (Source:
    Amended at
    Ill.
    Reg.
    ________,
    effective
    )
    Section 215.205
    Alternative Emission Limitations
    Owners or operators of coating
    lines subject to Section 215.204
    may comply with this Section,
    rather
    than with Section 215.204.
    The methods or procedures used
    to determine emissions of organic
    material under this sSection shall
    be approved by the Agency.
    Emissions of volatile organic material from sources subject to
    Section 215.204,
    are allowable,
    notwithstanding
    the limitations
    in Section 215.204,
    if ~eh
    eM4
    4er~s
    ~e eei~~&He~
    l~ye~ee~
    ~he
    ~
    methe~:
    a)
    For those sources subject to Section 215.204(b),
    the
    emissions are controlled
    by Aan afterburner system which
    provides: ~
    ~
    pe~eei~e? ~he em&~e~
    ~em
    ~he e~4i~g3~4~e
    arts
    ~O pe~ee~e?
    ~he rte~Me~h&r~e
    V~~e
    &~g~i~e
    me~5~1 e~~re~
    && ~e~e3~ee~~4b~e
    e~bert~wh~eh
    er~e~
    ~he ~
    ebtt~e~~e
    e~e~&~2e&
    ~e
    e~ber~
    ~
    ~
    we~e~e~
    1)
    75
    reduction
    in
    the
    overall
    emissions
    of
    volatile
    organic material
    from the coating line,
    and
    84—772

    —29—
    2)
    Oxidation to carbon dioxide and water
    of
    90
    of
    the
    nonmethane
    volatile
    organic
    material
    (measured
    as total combustible carbon) which enters the
    afterburner.
    b)
    For all other sources subject
    to Section 215.204, the
    emissions are controlled by an afterburner system which
    provides:
    1)
    81
    reduction in
    the overall emissions
    of volatile
    organic material
    from the coating line,
    and
    2)
    Oxidation to carbon dioxide and water
    of
    90
    of
    the
    nonmethane volatile organic material
    (measured as
    total combustible carbon) which enters the after-
    burner.
    bc)
    ~ The system used
    to control such emissions is
    demonstrated to have control efficiency equivalent to or
    greater than that provided under the applicable pro-
    vision of
    Section 215.204
    or subsections
    (a)
    or
    (b) ~
    by ~he A~er~ey.
    (Source:
    Amended at
    Ill.
    Reg.
    ________,
    effective
    ___________)
    Section
    215.207
    e~r~&3
    ~
    Compliance
    by
    Aggregation of Emission Sources
    a)
    Ne
    pe~ert
    ~h&~3 e&~e ei’ e33~ew~he e~er~ e?
    ~a~e
    ef~g~rt~e
    Me~4.e~
    f~r~ern~y
    eea~4~r~g
    3~4~e
    ~e exeee~ei~y
    m~~er~
    ee~~e~
    ~
    See~er~ ~-294 w~e~&Owners
    or
    operators
    of
    coating
    lines
    subject
    to
    Section
    215.204
    may comply with this Section rather than with Section
    215.204.
    The
    methods
    or
    procedures
    used
    to
    determine
    emissions of volatile organic material under this
    Section shall
    be approved by the Agency
    in accordance
    with
    35
    Ill.
    Adm.
    Code
    201.
    Emissions
    of
    volatile
    organic material from sources subject to Section 215.204
    are
    allowable,
    notwithstanding
    the limitations
    in
    Section 215.204,
    if
    the combined actual emissions ~e~e
    from a~33 selected coating lines
    at the coating plant,
    but
    not
    including
    coating
    lines
    or
    other
    emission
    sources constructed or modified after July 1,
    1979,
    is
    less than or equal
    to the combined allowable emissions
    r&ee
    as
    determined
    by
    the
    following
    equations:
    =
    (A1B1).
    j=1
    i=l
    84—773

    —30—
    m
    n
    EACT
    (C~Bi(l
    j=l
    i=1
    b)
    A1 shall
    be determined by the following formula:
    1—
    Si
    bc)
    As used
    in subsectiona
    (a)
    and
    (b), symbols mean the
    following:
    EALL
    =
    the allowable volatile organic material
    emissions ~a~e from the coating plant
    in
    ~eg~s
    ~
    ~ey kg/day
    (petrnd~pe~d~y
    lb/day).
    =
    the allowable emission
    ~a~e
    limit for e~eha
    coating pursuant to Section 215.204 expressed
    in kg/l
    (lbs/gal)
    of coating solids7 exet~dir~g
    w~e~7~e3-~ve~e~~e ~he ee~4r~geppe&~e~.
    B1
    =
    the volume of eeeh coating solids
    in 1/day
    (gal/day)r
    e~e~&4rtg
    w~e~7in
    a coating
    as
    delivered
    to the coating ~p~4e&~e~
    line.
    m
    =
    the number
    of coating lines included
    in the
    combined emission rate.
    n
    =
    the number of
    ~ype~ &~
    different coatings
    delivered
    to
    ~he
    a coating
    4ea~e~
    line.
    EACT
    =
    the actual volatile organic material emissions
    r~~e
    from the coating plant
    in kg/day (lb/day)
    =
    the weight
    of volatile organic material per
    volume of
    e~r~g
    solids
    in kg/l
    (lb/gal)
    for
    e~eha coating ~p~3~4ed~
    D1
    =
    the control efficiency by which emissions of
    volatile organic material from ~he a coating
    are reduced through the use
    of control
    equipment.
    =
    the a~plicab1evolatile organic material
    emission limit pursuant to Section 215.204,
    tor
    a coating
    in kg/i
    (lb/gal).
    =
    the density of the volatile organic material
    84—774

    —31—
    in
    a coating
    in kg/l
    (lb/gal).
    ed)
    The owner or operator
    of the coating plant shall
    maintain records
    of the density of the volatile organic
    material in each coating,
    the quantity and
    3~er~
    volatile organic material and solids content
    of each
    coating applied and
    the line
    to which ~
    coating is
    applied,
    in such
    a manner so as
    to ~s~a~e demonstrate
    continuing compliance with the combined allowable
    emissions ~
    de)
    Except for emission sources subject to Sections 215.301
    or 215.302,
    credits ~
    ~&e~
    from emission sources at
    the coating plant that are subject
    to this Part, other
    than coating lines, may
    be
    given,- b~e~y to the extent
    that they ~ep~e~er~ ~ee~er~
    emissions are reduced
    from the allowable emission limits for such emission
    sources contained
    in either this Part,
    or any existing
    operating permit, whichever limit
    is less.
    (Source:
    Amended at
    Ill. Reg.
    _______,
    effective
    IT
    IS SO ORDERED
    I, Dorothy M. Gum,
    Clerk of the Illinois Pollution Control
    Board, hereby certify that the above Adopt~dRule, Final Order,
    Opinion
    a,Tld Order was adopted on the ~
    day
    /
    of
    •~~v-’
    ,
    1987,
    by a vote of
    ‘~
    ~‘
    I
    /
    t_
    Dorothy
    p4.’ Gunn, Clerk
    Illinois Pollution Control Board
    84—775

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