ILLINOIS POLLUTION CONTROL BOARD
    April
    3,
    1980
    CENTRAL
    :tLLINOIS PUBLIC SERVICE COMPANY,
    (Grand Tower Power Station),
    )
    Petitioner,
    v.
    )
    PCB 80-20
    ENVIRONMENTAL PROTECTION AGENCY,
    Respondent.
    OPINION
    AND
    ORDER OF THE BOARD
    (by Dr. Satchell):
    This matter comes before the Board upon a variance petition
    filed January
    25,
    1980 by Central Illinois Public Service Company
    (CIPS).
    The petition requests for the Grand Tower power station
    a variance from the effluent standards for copper
    (total)
    ,
    iron
    (total)
    and iron
    (dissolved)
    of Rules 408(a)
    of Chapter
    3:
    Water
    Pollution for rinse water discharges into the ash pond.
    On March
    3,
    1980
    the
    Environmental Protection Agency
    (Agency) recommended
    that the variance be granted with conditions.
    The hearing was
    waived and the Board has received no public comment.
    The issues
    involved in this variance are substantially the same
    as those
    in PCB 80—16.
    The Opinion of this date
    in that case is incorp-
    orated by reference.
    The Grand Tower power station is
    a 202 megawatt fossil fueled
    electric power plant situated in Grand Tower, Jackson County.
    Boilers
    7,
    8 and 9 are scheduled for cleaning at various intervals
    between May 11 and November 29,
    1980.
    Boilers
    7 and 8 will each
    require about 17,000 gallons
    (65,000
    1)
    of EDTA solution.
    Boiler
    9 will require about 34,000 gallons
    (130,000
    1)
    of EDTA solution.
    Fifty—one thousand gallons
    (195,000
    1)
    and 102,000 gallons
    (390,000
    1)
    of rinse water will be required respectively.
    The Agency estimates
    that about 2000 pounds
    (900 kg)
    of iron and 200 pounds of copper
    (90 kg) will be removed from each boiler.
    Under the requested
    variance boiler cleaning and air heater rinse waters will be dis-
    charged into an ash pond which discharges
    into the Mississippi
    River.
    On October 23,
    1979 the Agency issued NPDES Permit IL
    0000124
    for this discharge.
    CIPS’
    appeal of permit conditions
    is
    pending before the Board in PCB 79-246.
    The Board finds that requiring immediate pretreatment of
    rinse water discharges would impose an arbitrary and unreasonable
    hardship on CIPS for reasons
    similar to those outlined in the
    —2--
    Board’s Opinion of this date in PCB 80-16.
    The variance will be
    granted with conditions.
    This Opinion constitutes the Board’s findings of fact and
    conclusions of law in this matter.
    ORDER
    Petitioner Central Illinois Public Service Company is granted
    for its Grand Tower power station a variance from the effluent
    standards
    for copper
    (total), iron
    (total)
    and iron
    (dissolved)
    of
    Rule 408(a)
    of Chapter
    3:
    Water Pollution, subject to the follow-
    ing conditions:
    1.
    This variance will expire November 30,
    1980.
    2.
    This variance will apply only to boiler cleaning rinse
    water and air heater wash discharges
    into the ash pond.
    3.
    Petitioner shall not discharge EDTA boiler chemical
    cleaning solution into the ash pond.
    4.
    Petitioner shall conduct a study to determine treatment
    capabilities
    of the ash pond.
    The study shall include
    as
    a minimum data on pH of the ash pond, the constitu-
    ents
    in the metal cleaning waste rinses, the concen-
    tration of the constituents and the volume of the metal
    cleaning waste rinses discharged
    to the ash pond.
    A
    summary of results shall be sent to the Agency by
    November
    30, 1980.
    5.
    The Agency, pursuant to Rule 914 of Chapter
    3:
    Water
    Pollution,
    shall modify the NPDES Permit IL 0000124
    consistent with the conditions set forth
    in this Order.
    6.
    Within forty-five days of the date of this Order, Peti-
    tioner shall execute and forward to the Illinois En-
    vironmental Protection Agency, Variance Section,
    2200
    Churchill Road,
    Springfield, Illinois 62706,
    a Certifi-
    cate of Acceptance and Agreement to be bound to all terms
    and conditions of this variance.
    This forty-five day
    period shall be held in abeyance for any period this
    matter is being appealed.
    The form of the Certificate
    shall he
    as follows:
    —3—
    CERTIFICATION
    I,
    (We),
    _____________________,
    having read
    and fully understanding the Order in PC3
    80—20, hereby
    accept that Order and agree to be bound by all of its
    terms and conditions.
    IT IS SO ORDERED
    SIGNED
    TITLE
    DATE
    I, Christan
    L. Moffett, Clerk of the Illinois Pollution
    Control Board, heW~y certify the above Opinion and Order were
    a~,optedonthe
    3
    day of
    ~
    ,
    1980 by a vote of
    Christan L. Moff
    Clerk
    Illinois Pollutio
    Control Board

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