ILLINOIS POLLUTION CONTROL
    BOARD
    September 7,
    1995
    COMMONWEALTH
    EDISON
    COMPANY
    )
    (FISK,
    CRAWFORD,
    WILL
    COUNTY
    )
    and JOLIET GENERATING
    )
    STATIONS),
    Petitioner,
    v.
    )
    PCB
    96-51
    )
    (Provisional Variance-Water)
    ILLINOIS
    ENVIRONMENTAL
    )
    PROTECTION AGENCY,
    )
    Respondent.
    ORDER OF THE BOARD
    (by CA. Manning):
    Pursuant to Section
    35(b)
    of the Environmental Protection
    Act (Act)
    (415 ILCS 5/35(b)), Commonwealth Edison Company
    (Commonwealth Edison), on behalf of its,
    Fisk, Crawford, Will
    County,
    and Joliet generating
    stations,
    has
    requested that the
    Illinois Environmental Protection Agency
    (Agency) recommend that
    the Board grant a provisional variance to allow Commonwealth
    Edison to increase the thermal discharge from these facilities.
    Such request for a provisional variance and the Notification of
    Recommendation were filed with the Board by the Agency on
    Tuesday,
    September 5,
    1995.
    Pursuant to Section 35(b)
    of the
    Act, the Board must issue the variance within two
    (2)
    days of
    this filing.
    Pursuant to Section 35(b)
    of the Environmental Protection
    Act (Act)
    (415 ILCS 5/35(b)), the Agency,
    by and through
    its
    Director, Nary A. Gade,
    seeks a provisional variance for
    Commonwealth Edison in order to allow it to operate due to
    increased electrical demands and outages of several of its
    generating units.
    This recommendation is essentially that the Board extend a
    previously-granted thirty-two (32)-day provisional variance that
    expired August 31,
    1995.
    The docket number of the previous
    provisional variance was PCB 96-26, granted on August 3,
    1995.
    That prior provisional variance was itself an extension of the
    variance granted on June 29,
    1995
    in PCB 95-183.
    Specifically, the Agency recommends that we grant
    Commonwealth Edison a eighteen (18)-day provisional variance for
    its facilities located in Will and Cook Counties from the
    temperature standards as set forth in 35 Ill. Adm. Code
    302.211(d), 304.141(a)
    and from the Board’s order in PCB 91—29,
    November 21,
    1991,
    for the period beginning September
    1,
    1995 and
    continue until September
    18,
    1995.

    2
    The Agency recommends that the Board grant the requested
    provisional variance with specified conditions.
    The Agency
    anticipates that the requested provisional variance would have
    minimal environutental impact on the receiving stream.
    The Agency
    is unaware of any public water supplies that the requested
    provisional variance would adversely impact.
    The Agency
    maintains that a grant of a provisional variance would violate no
    federal laws.
    The Agency finds that a denial of the requested
    provisional variance would create an arbitrary or unreasonable
    hardship on the petitioner.
    Provisional variances are by their very nature temporary.
    The responsibilities of the Agency and the Board in these short-
    term provisional variances are different from the
    responsibilities in standard variances.
    (~
    415 ILCS 5/35
    (b)
    &
    36(c)).
    In provisional variances it is the responsibility of the
    Agency to make the technical determinations and finding of
    arbitrary or unreasonable hardship.
    The Board’s responsibility
    i~to adopt a formal ordQr, to as~nr~th~form~1maintenance of
    the record, to assure the enforceability of the variance, and to
    provide notification of the action by a press release.
    Having received the Agency recommendation finding that a
    denial of the requested relief would impose an arbitrary or
    unreasonable hardship, the Board hereby grants Commonwealth
    Edison a provisional variance from 35
    Ill. Adm. Code 302.211(d),
    304.141(a)
    and from the Board’s order in PCB 91—29, November 21,
    1991,
    on the following conditions:
    1.
    The variance shall commence on September 1,
    1995 and
    continue until September 18,
    1995;
    2.
    For the period of this provisional variance,
    Commonwealth Edison’s Joliet, Will County,
    Crawford, and
    Fisk stations shall comply with a maximum temperature limit
    or
    93 degree Fahrenheit, measured
    in
    the
    lower
    Des
    Plaines
    River at the 1-55 Bridge.
    Also during this variance, any
    excursion hours over the Petitioner’s National Pollutant
    Discharge Elimination Systems permit limit shall not be
    counted against the usual 1
    excursion hour allowance;
    3.
    Commonwealth Edison shall continue to measure the water
    temperature at the 1—55 Bridge on
    a continuous basis and
    shall perform periodic surveillance of the river to ensure
    that no adverse environmental hardship is being caused by
    the higher water temperature.
    Within ten
    (10) days of the date of this order of the Board
    Commonwealth Edison ~ha11 execute a copy
    of
    a Certifir~te
    of
    Acceptance of this provisional variance and forward that copy to
    the Agency addressed as follows:

    3
    Illinois Environmental Protection Agency
    Bureau of Water, Compliance Assurance Section
    2200 Churchill Road
    P.O. Box 19276
    Springfield,
    Illinois
    62794—9276
    Attention:
    Mark T. Books
    The
    Certificate
    of
    Acceptance
    shall take the following form;
    I
    (We)
    CERTIFICATION
    hereby accept and agree to be bound by all terms
    and conditions of the order of the Pollution
    Control Board in PCB 96-51, September 7,
    1995.
    Petitioner
    Authorized Agent
    Title
    Date
    IT IS SO ORDERED.
    Board Member M. McFawn dissented.
    Board Member J. Theodore Meyer voted present.
    I, Dorothy M. Gunn,
    Clerk of the Illinois Pollution Control
    Board
    do hereby certifyi’that the above order was adopted on the
    7(1
    day of __________________________,
    1995, by a vote of
    s—I.
    tj
    Control
    Board

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