ILLINOIS POLLUTION CONTROL BOARD
    August
    7,
    1980
    In The Matter of:
    Proposed Amendments to Chapter
    2:
    )
    R80—11
    Air Pollution, Rules 312 and 405,
    Ozone Standard and Episode Criteria
    )
    Proposal for Rulemaking.
    Submitted by the Environmental Protection
    Agency.
    Proposed Rule.
    First Notice.
    ORDER OF THE BOARD
    (by J. Anderson):
    On June 17, 1980,
    the Environmental Protection Agency proposed
    amendments to Rules 312 and 405 of Chapter 2:
    ~\irPollution.
    The
    purpose of this proposal
    is to make Illinois’ ozone standards and
    criteria for declaring ozone episode stages identical to the current
    federal
    standard and criteria.
    They are currently more restrictive.
    The following is the text of the proposed changes.
    Deletions
    are interlined and new language is underlined.
    Rule 312:
    ~
    Ozone.
    (a)
    Standard.
    The ambient air quality standard for
    ~
    ozone is ~69 235 micrograms per cubic meter
    +Q~G8—pp~*(0.12 ppm) maximum one—hour concentration not to he
    exceeded Me~e-~h—eI~ee-pe~-yea~
    on more than one day per year.
    (b)
    Measurement ~1ethod. For determining conformance
    with ~he~eeheM~e -e8a~s ozone air quality
    standard, ~
    ~
    ozone shall he measured by the ozone—ethylene reaction
    method as described in 36 Federal Register, pp.
    22392—22393,
    November 25, 1971,
    or by an equivalent method approved by the Agency.
    Rule 405:
    CRITERIA FOR DECLARING EPISODE STAGES
    (a)
    Watch, Alert,
    and Emergency Levels
    Averaging
    Yellow
    Red
    Pollutant
    Time
    Watch
    Alert
    Alert
    Emergency
    Ozone
    (ppm)
    2-hour
    .12
    1—hour
    ——
    94~ 0.20
    0.30
    0.50
    The Pollution Control Board has scheduled two hearings on the
    merits of this proposal.
    Information concerning these hearings
    can be obtained by contacting the Clerk of the Board.
    2
    The Board withholds judgment on the merits of this proposed
    rule until the public hearings have been held and the testimony
    and comments have been received.
    IT IS SO ORDERED.
    Mr. Dumelle concurs.
    I, Christan L. Moffett,
    Clerk of the Illinois Pollution Control
    Board, hereby certify that the above Ord
    was adopted on the
    71~
    day of ~
    -,
    1980 by
    a vote of
    ___
    Christan L. Moft~~~/
    Clerk
    Illinois Pollution Control Board

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