ILLINOIS POLLUTION CONTROL BOARD
    May 3, 1973
    )
    VILLAGE OF BENSENVILLE
    )
    )
    )
    v.
    )
    PCB 72-481
    )
    )
    ENVI RONMENTAL PROTECTION AGENCY
    )
    )
    OPINION AND ORDER OF THE BOARD (by Mr. Dumelie)
    This is a request for variance until December 31, 1974 from
    Rule 404(f) of the Water Regulations which requires that no effluent
    whose dilution ratio is less than one to one shall exceed 4 mg/i BOD
    or 5 mg/i suspended solids. Hearing was held on February 28, 1973.
    Petitioner’s present wastewater treatment facility is a trickling
    filter secondary plant with chlorination. It has a design average
    flow of 3.0 MGD and is currently discharging an average of 3.23 MGD.
    Around fifty percent of the plant’s load is industrial waste. The
    plant’s effluent is discharged to Addison Creek, an intermittent
    stream which provides less than a one to one dilution ratio.
    Agency grab samples taken between March and July, 1972 show the
    effluent to be 12, 26, 12 and 8 mg/i BOD and 37, 32, 30 and 28 mg/l
    suspended solids. The fecal coliform counts were less than 1000 per
    100 ml on all four occasions. According to the petitioner’s monthly
    operating reports for May, June, July, October and November, 1972,
    the average BOD was between 6 and 8 mg/i and the average suspended
    solids was between 22 and 34.
    The petitioner has been working on upgrading its plant to a
    capacity of 4.0 MGD with an effluent not to exceed 4 mg/i BOD and
    5 mg/i suspended solids. The existing plant will remain in operation
    to provide pre-treatment of raw sewage. The new plant will use an
    activated sludge process followed by tertiary treatment. Additional
    aeration capacity will be provided to treat the ammonia nitrogen.
    The expected completion date is December 31, 1974.
    In June, 1970, petitioner contracted for a preliminary engineering
    study to upgrade its facilities. That report was received in January,
    1971. In April, 1971, the report was submitted to the Northeastern
    Illinois Planning Commission (NIPC) along with State and Federal grant
    applications. In November, 1971 petitioner received notice from NIPC
    denying endorsement of the project because the proposal was incon-
    sistent with the DuPage County Regional Wastewater Plan. In
    7 —
    663
    2-
    January,
    l972~ petitioner hired another engineering consultant
    to
    prepare a second report.
    This second. report was submitted to NIPC
    in March and was finally approved on May 30, 1972.
    The Agency recommendation notes that the delays were due in part
    to
    the uncertainties
    of
    regionalization
    and not necessarily self
    imposed by petitioner,
    it also notes that even though the effluent
    levels are above the standards, the concentrataons
    are not so excessive
    as to substantially
    impair water quality in Addison Creek.
    The
    Agency recommends a grant of the variance from Rule 404(f) and also
    from Rules 921(d) and 1002 so that permits can be issued.
    Under the
    circumstances of the case and in view of the Agency~s recommendation
    we will
    grant the variances,
    This opinion constitutes the Board~sfindings of fact and
    conclusions of law.
    ORDER
    1.
    Petitioner is granted a variance from Rules 404(f), 921(d)
    and
    1002 of the Water Regulations until May 3, 1974.
    2.
    Petitioner
    shall re:Eile a project
    completion schedule
    with
    the Agency by June 3, 1973.
    I,
    Christan
    L. Moffett, Clerk
    of the Illinois Pollution Control
    Boajd
    hereby certify the above Opinion and Order were adopted on the
    ~
    day of May, 1973
    by a vote of _______________________________
    Christan L. Moffet Clerk
    Illinois
    Poilutio ontrol Board

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