ILLINOIS POLLUTION CONTROL BOARD
    April 24, 1975
    CARTHAGE INDUSTRIAL DEVELOPMENT
    CORPORATION AND CITY OF CARTHAGE,
    )
    Petitioners,
    v.
    )
    PCB 75—48
    ENVIRONMENTAL PROTECTION AGENCY,
    Respondent.
    OPINION AND ORDER OF THE BOARD (by Dr. Odell)
    Carthage Industrial Development Corporation and City of
    Carthage filed a Petition For Variance with the Illinois Pol-
    lution Control Board (Board) on February 3, 1975. Petitioners
    sought relief from the prohibition of
    the Illinois
    Environmental
    Protection Agency (Agency) against construction and operation of
    a sanitary sewer extension pursuant to Section 39 of the Illinois
    Environmental Protection Act (Act) and Rule 962(a) of the Water
    Pollution Regulations (Chapter Three). The Agency Recommendation
    of March 3, 1975, concluded that the variance should be denied
    until certain measures were carried out, especially until an
    interim compliance plan was developed in response to the ~qency’s
    letter of October 18, 1974, to the City of Carthage. In its
    Interim Order of March 13, 1975, the Board set out the fact situa-
    tion in full and gave Petitioners until April 1, 1975, to develop
    an interim compliance plan following the 18 points in the letter
    of October 18. The Agency was ordered to comment by April 8,
    1975, on the Petitioner’s interim compliance plan.
    The parties have timely filed the required information.
    The Interim Compliance Plan was filed by the City on March 31,
    1975, and the Agency Comments To Interim Compliance Plan were
    filed April 9, 1975. The Agency did not oppose the grant of the
    variance, subject to revisions in two sections of the Interim
    Compliance Plan. On the facts in this case, we rule that the
    variance be granted. The Order is written to incorporate the
    revisions suggested by the Agency.
    This Opinion constitutes the findings of fact and con-
    clusions of law of the Board.
    ORDER
    Carthage Industrial Development Corporation and the
    City of Carthage are hereby granted a variance from Section 39
    16~471
    —2—
    of the Act and Rule 962(a) of Chapter Three, subject to the
    following conditions:
    (a) The City of Carthage shall carry out the terms and
    conditions of the March 31, 1975, Interim Compliance Plan unless
    modified by other conditions of this Order.
    (b) Instead of item 6 in the Interim Compliance Plan,
    the City of Carthage shall:
    I. Remove all scum, grease and floating matter
    from the surface of the Imhoff tank within
    15 days of the adoption of this Order and
    the tank surface thereafter shall be kept
    free of scum, grease and floating matter.
    2. Loosen and remove all sludge from the lower
    portion of the Imhoff tank, especially in
    the south end. If necessary, a high pressure
    pump and hose using water from the final
    clarifier shall be used to dislodge sludge.
    This work shall be performed within 30 days
    of the adoption of this Order.
    3. On a regular basis in the future, as deter-
    mined to be necessary by weekly sounding of
    the sludge levels in the Imhoff digestor com-
    partment, remove sludge by portable pump from
    the south end of the Imhoff tank, where valves
    are inoperative.
    (c) In addition to the requirements in the Interim Com-
    pliance Plan item 9, if rodding does not correct the situation
    the City of Carthage shall replace the media if it is feasible
    to do
    so.
    If the rodding is unsuccessful the City shall also
    have its City engineer conduct the engineering investigation,
    the results of such investigation to be supplied to the Agency
    by July 1, 1975. The City shall provide to the Agency a detail-
    ed cost analysis concerning the replacement of the upper two feet
    of media by July 1, 1975.
    (d) The City of Carthage shall send completion reports
    to the Agency within 5 days after the completion dates in the
    Interim Compliance Plan. The reports shall be sent to Manager,
    Variance Section, Division of Water Pollution Control, Illinois
    Environmental Protection Agency, 2200 Churchill Road, Springfield,
    Illinois 62706.
    IT IS SO ORDERED.
    I, Christan L. Moffett, Clerk of the Illinois Pollution Control
    Board, hereby certify that the above Opinion and Order was
    ad,opted on the~L1~’day of
    _____________,
    1975, by a vote of
    ‘-f
    top
    Christan L. M~tt

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