ILLINOIS POLLUTION CONTROL BOARD
    February
    22,
    1972
    APPLICATION OF COMMONWEALTH EDISON
    CO. AND IOWA-ILLINOIS GAS
    & ELECTRIC
    )
    #
    71-20
    CO.
    (QUAD-CITIES)
    Supplementary Order of the Board
    (by Mr. Currie):
    The applicants by letter of February
    15 have informed us
    that pursuant to Iowa requirements they plan to construct
    a
    spray canal to accommodate one-half
    of the plant’s cooling water
    discharge.
    They
    ask whether additional proceedings before us
    are necessary to obtain permission to construct this canal.
    We
    say no.
    The original hearings preceding our issuance
    of the Quad—
    Cities permit contained ample evidence as to the good and bad
    effects of spray canals,
    as
    a serious issue
    in that proceeding
    was whether or not such
    a canal should be required.
    Our
    conclusion was that
    no such canal was necessary at the time,
    not
    that
    it
    was undesirable.
    As we understand
    the new plan,
    it will
    give further assurance that the Illinois standards for river
    temperature will be met.
    The evidence does
    not indicate that
    fogging or other side effects will be so great
    as
    to forbid
    the use of the canal.
    No modification of the initial permit
    is
    necessary.
    The applicants further state their intention to seek
    a
    modification of the permit to allow operation without the diffuser
    pipe during
    the spring of 1972 because
    of regulatory delays
    in
    obtaining permits
    to construct the diffuser.
    We do not construe
    the February
    15 letter as that request; when
    the applicants are
    ready
    they may submit such a request and we shall entertain
    it.
    It appears likely that
    a hearing will be necessary on such an
    application,
    and we urge that
    its filing not be unduly delayed.
    I, Christan Moffett, Clerk of the Pollution Control Board, certify
    that
    the Board adopted the above Supplementary Order this 22
    day of February,
    1972 by
    a vote of
    5-0.
    1~L~ ~
    3
    677

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