ILLINOIS POLLUTION CONTROL BOARD
    May 16,
    1974
    VILLAGE OF SORENTO
    )
    )
    v.
    )
    PCB 74-97
    )
    ENVIRONMENTAL PROTECTION AGENCY
    )
    VILLAGE OF NORRIS CITY
    )
    )
    )
    PCB 74-106
    )
    ENVIRONMENTAL PROTECTION AGENCY
    )
    OPINION AND ORDER OF THE BOARD
    (by Mr. Dumelle):
    The above two Petitioners request a variance from the limit
    of 0.02 mg/I for copper found in Rule
    203(f)
    of the Water Pollution
    Rules
    in order to apply copper sulfate
    to public water supply
    reservoirs to control algae
    growth.
    The Board ordered additional
    information concerning actual dosages, frequency of application,
    and the resulting copper concentration in the respective raw
    water intakes in each
    of the petitions.
    Both of the Petitioners
    complied with the Board’s order.
    The Agency has recommended
    a grant in both cases
    subject
    to certain conditions.
    The Board has previously granted several variances for appli-
    cation of copper sulfate
    to control algae growth in public water
    supply reservoirs
    this year
    (City of Nashville,
    PCB 74-35,
    (April
    18,
    1974)
    and City of Harrisburg
    et
    al
    v.
    EPA, PCB 74-61 et
    al
    ~May 2,
    1974)).
    For the reasons detailed in the Nashville Opinion,
    the Board has decided
    to grant each of the requested variances
    subject to the conditions found in the respective Agency recommendo-
    tions,
    Both Villages were granted variances
    to apply copper
    sulfate
    in the 1973 algae growth season.
    One condition of both
    of these variances was
    that copper concentration in the Village
    of
    Norris
    City’s water intake
    shows
    that copper concentration exceeded
    this
    limitation.
    Therefore,
    the Board
    agrees with the Agency th~t
    Norris City?s
    rate of application for copper sulfate be reduCed
    from
    800 to
    600 pounds of copper sulfate per monthly treatment~
    This
    Opinion constitutes
    the
    Board~s findings
    of
    facts
    and
    •:cnclus ions
    of
    law:
    ORDER
    Each Petitioner is hereby granted a variance from Rule
    203(f)
    of the Water Pollution Rules subject to the following
    conditions:
    1.
    Village
    of Sorento
    a.
    That the copper sulfate treatment be limited to
    one treatment every two weeks
    for the month of June through
    and including September,
    1974
    b.
    That copper sulfate dosage not exceed 100 pounds
    per treatment
    c.
    That copper concentrations in the raw water intake
    to the treatment plant never exceed the 1.0 milligram per
    liter recommendation of the U.S. Public Health Service
    Drinking Water Standards
    d.
    That the copper concentration in the reservoir be
    measured immediately prior to and after each copper sulfate
    treatment, and the results
    of the measurement be submitted
    to the Environmental Protection Agency on
    a monthly basis.
    2.
    Village of Norris City
    a.
    That
    the. copper sulfate
    treatment be limited
    to one
    treatment per month for the months
    of April through and
    including September,
    1974
    b.
    That Petitioner would, whenever possible,
    avoid treating
    the reservoir near the raw water intake pipe
    c.
    That the copper sulfate
    dosage not exceed 600 pounds
    per treatment
    d.
    That the copper concentrations in the raw water intake
    to the treatment plant never exceed 1.0 milligram per liter
    recommendation of the U.S. Public Health Drinking Water Standard
    e.
    That the copper concentration of the reservoir be
    measured immediately prior to and after each copper sulfate
    treatment, and the results
    of the measurement be submitted
    to the Environmental Protection Agency on
    a monthly basis.
    f.
    That the Village of Norris City obtain commercial field
    testing equipment for copper for use
    in monitoring
    the copper
    level of raw water intake during time
    of treatment and keep
    records
    of such tests
    for Agency review.
    IT
    IS SO ORDERED.
    12
    —
    296
    -3-
    I, Christan
    L.
    Moffett, Clerk of the Illinois Pollution Control
    Board, certify that the above Opinion and Order was
    adopted on
    this
    ~
    day of _________________________,
    1974 by
    a
    vote of
    ~
    .
    12—297

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