ILLINOIS POLLUTION CONTROL BOARD
    December 13, 1979
    IN THE MATTER OF:
    )
    R78—6
    PROCEDURAL
    RULES REVISIONS
    (PART VI:
    HEARINGS PURSUANT TO SPECIFIC RULES)
    ORDER OF THE BOARD
    (by Mr. Goodman):
    Part VI of the Board’s Procedural
    Rules shall read as
    follows:
    Rules 601—609 are identical
    to old Part VI;
    Rules
    611—619 are identical
    to old Part VI(A); Rules 621—629 are
    new and are designed to specify the manner in which proceed-
    ings under Rule 204(e)(3)
    of Chapter 2:
    Air Pollution,
    relating to sulfur dioxide emission limitations, are to be
    held.
    621—629
    RULE 204(e)(3)
    OF THE AIR POLLUTION CONTROL REGULA-
    TIONS
    621
    Petition
    (a)
    A hearing pursuant to Rule 204(e)(3) of the Air
    Pollution Control Regulations,
    Chapter
    2 of the
    Board’s Rules and Regulations,
    shall be commenced
    by filing a petition for a Rule 204(e) (3) hearing
    with the Agency and by filing ten copies with the
    Clerk of the Board.
    (b)
    At the time of filing of its petition, petitioner
    shall submit to the Agency and to the Board any
    reports or other evidence in accord with Rule 622
    of this Part.
    (c)
    Petitioner shall ensure that the procedural require-
    ments of 40 C.F.R.
    §51.4
    (1977) are met.
    At least 30
    days prior to the date of the hearing Petitioner shall:
    1.
    Give notice to the public by prominent adver-
    tisement in the Air Quality Control Region
    affected announcing the date,
    time and place
    of such hearing;
    2.
    Make available a copy of the petition for
    public inspection
    in at least one location in
    the Air Quality Control Region in which the
    source is
    located;
    37—81

    —2—
    3.
    Notify the Administrator of the U.S. Environ-
    mental Protection Agency (through the appro-
    priate Regional Office);
    4.
    Notify each
    local air pollution control agency
    located within the aforementioned Air Quality
    Control Peqion;
    5.
    Notify, in the case of an interstate Air Qual-
    ity Control Region, any air pollution control
    agencies of other states included,
    in whole or
    in part,
    in the Region.
    622
    Requirements for Petition
    The petition shall
    include hut not he
    limited to the
    following information:
    (a)
    An explicit statement of the site-specific emission
    limitation
    (in pounds of sulfur dioxide per million
    btu actual heat input and total pounds of sulfur
    dioxide per hour) which is proposed for the facil—
    ity.
    (b)
    Emission Sources Description
    1.
    The diameter, height,
    exit gas temperature,
    and exit gas velocity for all stacks or vents
    through which sulfur dioxide is emitted into
    the atmosphere;
    2.
    A description of the fuels used including
    type,
    ultimate analysis,
    sulfur content, and
    heat content;
    3.
    A description of the type of fuel combustion
    equipment including method of firing and size
    (in million btu per h’our capacity);
    4.
    A topographic map of terrain within
    30 miles
    of the emission source(s);
    5.
    A specific description of the location of the
    emission sources, including a plot plan;
    6.
    A specific description of the operating con-
    ditions which produce maximum sulfur dioxide
    emissions.
    (c)
    A summary of any and all ambient air quality data
    collected by the owner or operator of the source(s)
    since January
    1,
    1973.
    The summary shall include
    annual averages; maximum and second—highest one—
    37—82

    —3—
    hour,
    three—hour, and 24—hour averages for each
    month; and the number of times the three—hour and
    24—hour SO2 standards were exceeded during each
    month.
    (d)
    A summary of any and all meteorological data col-
    lected by the owner or operator of the source(s)
    since January
    1,
    1973,
    if such data are used in
    the development of the site—specific emission
    standard.
    (e)
    A complete description of and justification for
    all dispersion models and plume rise equations
    which were used to develop the site—specific
    emission limitation including all model equations.
    (f)
    A description of and justification for the use of
    all data which were inputs to the dispersion and
    plume rise formulae used to establish the site—
    specific emission standard.
    The description and
    justification shall cover,
    as a minimum,
    the
    following input data:
    1.
    Stack diameters,
    stack heights, exit gas
    temperatures, and exit gas velocities for all
    stacks and vents emitting sulfur dioxide at
    the subject facility as well as for any other
    sources of sulfur dioxide which were modeled;
    2.
    All SO2 emission sources which were modeled;
    3.
    All meteorological data.
    (g)
    Calculated maximum ground—level concentrations
    using the following method, or such other method
    (or modification of the hereinafter stated method)
    which the petitioner proves to the satisfaction of
    the Pollution Control Board to be acceptable.
    1.
    Selection of simulation model:
    (i)
    Gaussian models which allow the input of
    hourly meteorological data shall be used
    which are appropriate
    for the specific
    location and type of source(s)
    in ques-
    tion.
    (ii)
    Dispersion models presented in “Guide-
    lines on Air Quality Models”
    (EPA—450/2—
    78—027),
    as amended from time to time,
    or those deemed by the Board
    to be
    equivalent to these models shall be
    used
    for detailed air quality studies.
    37.—~:3

    —4—
    2.
    Selection of meteorological data and stack
    parameters:
    (i)
    The most recent five years of hour-by—
    hour meteorological data reasonably
    available,
    including wind speed, wind
    direction,
    atmospheric stability, mixing
    height and surface temperature shall
    he
    used, unless the petitioner demonstrates
    that one of the five years causes sub-
    stantially higher concentrations than
    the other
    four, in which case detailed
    analyses conducted for only that “worst
    case” year would be acceptable.
    Notwith-
    standing the previous sentence, one year
    of on-site data may be used in lieu of
    the 5—year data requirement.
    (ii)
    Data shall be from the nearest, repres-
    entative, quality controlled meteorologi-
    cal collecting site.
    (iii)
    Stack parameters (including emission
    rate,
    stack height,
    stack diameter, exit
    velocity,
    and exit temperature)
    shall
    reflect the maximum operating rate for
    comparison with the 24-hour and 3-hour
    SO2 standards.
    3.
    Receptors:
    (i)
    Receptors shall be located so as to en-
    sure that the source’s maximum impact is
    detected.
    (ii)
    The determination of
    the
    receptor grid
    shall be
    fully documented in the model-
    ing study.
    4.
    Special conditions:
    (i)
    All special conditions which may affect
    the dispersion of the effluent plume,
    including local terrain effects and
    aerodynamic downwash, shall
    be consid-
    ered in the modeling study.
    (ii)
    If terrain is
    a factor
    in the vicinity
    of the source,
    a model capable of hand-
    ling variable—height receptors shall be
    used.
    37—84

    —5—
    (iii)
    If the computed height of the effluent
    plume is
    less than 2.5 times the height
    of nearby buildings or local obstruc-
    tions, aerodynamic downwash shall
    be
    studied and considered as
    a possible
    factor in the dispersion of that
    effluent.
    5.
    Determination of violation:
    The determination of whether an applicable
    air quality increment or standard is being
    violated shall be based on the second highest
    predicted concentration over the receptor
    grid for short—term averaging times and on
    the highest predicted concentration for
    annual averaging times.
    However,
    if only one
    year of meteorological data is used in the
    short—term analysis, then the highest predic-
    ted concentration may be compared to the
    applicable standard to determine whether a
    violation has occured.
    6.
    Other sources:
    Effects of other sources of SO
    shall
    be
    taken into account in the mode~ingstudy.
    (i)
    An acceptable method is to estimate the
    “background” from monitoring data which
    has been subjected to adequate quality
    control where available.
    When monitored
    data is used, the background shall
    he
    estimated using monitoring days with
    meteorological conditions similar to
    those identified as
    “worst case” for the
    source in question.
    (ii)
    If monitoring data is not available,
    then all sources of SO2 having
    a signifi—
    cant impact in the area of the source’s
    impact area shall he used in the simula-
    tion model.
    These sources of SO2 shall
    also he modeled at their maximum allow-
    able emission rate for any studies
    addressing 24—hour or 3—hour averaging
    times.
    (h)
    Estimates of the
    frequency, characteristics, prob-
    able time of occurrence,
    and duration of the
    meteorological conditions associated with the
    maximum ground—level concentration of sulfur diox—
    ide to which the facility under study contributes.
    37—85

    —6—
    A description of the techniques used in arriving
    at the above estimates shall be included.
    (i)
    Background concentrations which were determined
    for all meteorological conditions required to be
    examined under Rule 622(g) and for any other
    meteorological conditions considered in the devel-
    opment of the alternative standard;
    (j)
    A description of the method that was used to deter-
    mine background sulfur dioxide concentrations in
    the vicinity of the subject facility for each of
    the meteorological conditions required to be
    examined under Rule 622(g)
    and for any additional
    meteorological conditions considered in developing
    the alternative standard.
    (k)
    An evaluation and calibration of the dispersion
    model
    if air quality monitoring data were avail-
    able to perform such evaluation and calibration.
    623
    Parties
    The Agency shall he a party to any hearing held pur-
    suant to this Part.
    624
    Recommendation
    (a)
    Within
    90 days of the filing of the petition the
    Agency shall make a recommendation to the Board as
    to the proposed site—specific emission limitation.
    Such recommendation may include the following:
    1.
    A description of the efforts made by the
    Agency in conducting its review;
    2..
    The Agency’s conclusion as to whether the
    proposed site—specific emission limitation is
    adequate to prevent violations of the Primary
    and Secondary Sulfur Dioxide Ambient Air
    Quality Standards;
    3.
    The Agency’s conclusion as to what disposi-
    tion should be made of the petition.
    (b)
    The Agency shall
    serve a copy of its recommenda-
    tion upon petitioner,
    and ten copies shall
    be
    filed with the Clerk with proof of service.
    (c)
    The petitioner or any other person may file
    a res-
    ponse to the Agency recommendation within 14 days
    with proper notice given to the Board and the
    Agency.
    37—86

    —7—
    625
    Notice and Hearing
    (a)
    The Clerk shall give notice of the petition and
    hearing in accordance with Part III of these
    Rules.
    The proceedings shall be
    in accordance
    with the Rules set forth in Part III.
    The hearing
    shall he held in the county in which the source
    is
    located.
    (h)
    In a hearing,
    the burden of proof shall be on the
    petitioner.
    626
    Transcripts
    (a)
    In any proceeding brought pursuant to this Part
    VI,
    the petitioner at its own cost shall
    furnish
    to the Board within 15 days following the comple-
    tion of the hearing seven legible copies of
    a
    complete stenographic transcript of the proceed-
    ings of the hearing.
    (b)
    Upon petition and good cause shown, the Board may
    assume such cost.
    627—629
    Reserved
    Mr. Nels Werner dissented.
    I, Christan L.
    Moffett, Clerk of the Illinois Pollution
    Control Board, here y certify the above Order was adopted on
    the
    ~
    day of
    ______________,
    1979 by a vote of
    3/
    Christan L. Moff~~1,Clerk
    Illinois Pollution Control Board
    37—87

    Back to top