ILLINOIS POLLUTION CONTROL BOARD
    October
    10, 1974
    E.
    I.
    DU PONT DE
    NEMOURS
    &
    COMPANY
    )
    PETITIONER
    v.
    )
    PCB
    74—142
    ENVI
    RON~4ENTAL
    PROTECTION
    AGENCY
    RESPONDENT
    JAMES
    C. HILDREW, ATTORNEY,
    in behalf of
    E.
    I.
    DuPont
    de
    Nemours
    &
    Company
    RONALD LINICK, ATTORNEY,
    in behalf of the Environmental Protection
    Agency
    OPINION AND ORDER OF THE BOARD
    (by Mr. Marder)
    This
    case comes to the Board on Petition of E.
    I.
    Du Pont de Nemours
    & Company,
    filed April
    22,
    1974, requesting variance from Rule 207
    (d)
    (2)
    of Chapter
    2 of the Board’s
    Rules and Regulations for its weak nit-
    ric acid plants, No.
    1 and No.
    2,
    at Seneca, Illinois, until March
    31,
    1975.
    On April
    25 the Board issued an Order requiring Petitioner to submit
    more information on the data base used to conclude that there was no
    violation of the ambient air quality standards in 1973 and also to sub-
    mit current monitoring data on ambient air quality in the period of
    time before the information was due.
    On June
    26,
    1974, Petitioner filed its Amended Petition for Variance,
    containing
    the
    information requested.
    The Agency filed its recommendation September 19,
    1974.
    Its recom-
    mendation is to grant the variance until March
    31,
    1975.
    Petitioner operates three weak nitric aci~plants, which use the am-
    monia oxidation process.
    Plants
    1 and 2 were operating under
    a variance
    granted in PCB 73—325
    (Order dated October 18,
    1973)
    ,
    until July 15,
    1974.
    Plant
    #3
    is in compliance with the Board regulations.
    The plants make nitric acid which
    is used in the manufacture of ammon—
    ium nitrate prills for explosives.
    Each plant has a design capacity of
    55 tons per day with a charge rate of 13,250 lbs. per hour,
    composed of
    5
    steam condensate,
    5
    anhydrous ammonia, and 90
    compressed air.
    Unit
    #1 was built in 1930 and Unit
    #2 was built in 1952.
    Petitioner at the present time does not have control equipment to re-
    duce emissions, but has been using operating procedures
    to reduce emiss-
    ions.
    At capacity these units emit
    34 lbs. NO~expressed as NO2 per ton
    of 100
    HNO3 produced.
    Petitioner’s compliance plan for Plants
    1 and
    2
    is the same as
    it was
    14
    117

    —2—
    for the previous variance matter.
    Petitioner intends to install
    a Un-
    ion Carbide Pura—Siv “N” molecular sieve control system.
    In the prev-
    ious matter it was determined that this equipment would bring about com-
    pliance with Rule 207
    (d) (2). The equipment is estimated to cost
    $500,000 installed.
    In the original variance matter, Petitioner requested variance
    through October
    1,
    1974.
    The Board granted the variance until July 15,
    1974.
    At the present time, Petitioner doe9 not expect Union Carbide to
    ship the equipment until December 31,
    1974, and to have the system in
    operation until March
    31,
    1975.
    The Agency in its Recommendation does
    not dispute these allegations.
    The delay in shipment by Union Carbide
    is through no
    fault of Petitioner.
    Hardship:
    Petitioner alleges that failure to grant variance from Rule 207
    (d) (2)
    will be an unreasonable and arbitrary hardship on Petitioner in that it
    has not been able to comply with the previous Board order through no
    fault of its own, and has been diligent in its attempt to bring the
    plants into compliance.
    Petitioner further alleges that if the variance
    is denied,
    the plants will be shut down,
    causing a loss to Petitioner
    of $5,300,000 per year sales volume of nitric acid and associated prod-
    ucts.
    Shut down would also pose hardship to Petitioner’s customers who
    would have to find other sources of supply and pay for extra freight.
    Four to twelve jobs would be lost if the plants were to shut down.
    Environmental Impact:
    Petitioner alleges that in the area in which these plants are emit-
    ting,
    the National Ambient Air Quality Standards for nitrogen dioxide
    are not exceeded.
    In support of that statement,
    Du Pont contracted
    with ARRO Labs, Joliet, Illinois,
    to conduct a four-week monitoring program
    The monitoring was done from
    May
    27,
    1974,
    through June 20, 1974.
    The
    national standard is 0.053 ppm (annual mean).
    The monitoring data re-
    vealed that beyond the perimeter of the plant site the average mean was
    0.010 ppm.
    It should be noted that the Agency has raised an issue as to the relia-
    bility of monitoring data for 28 days with no base line meteorological
    data.
    It is true that this data
    is subject to question, but the Board
    finds that Petitioner made a good faith effort to supply the information
    requested in our More Information Order.
    The Board will grant the requested variance until March
    31, 1975. Pet-
    itioner has carried forth its compliance program in good faith and the
    delay occurred through no fault of Petitioner.
    This Opinion constitutes the findings of fact and conclusions
    of law
    of the Board.
    14
    118

    —3—
    ORDER
    IT IS THE ORDER of the Pollution Control Board that variance from
    Rule 207
    (d) (2) of Chapter 2 of the Board’s Rules
    and Regulations for
    Petitioner’s No.
    1 and No.
    2 weak nitric acid plants is granted until
    March
    31,
    1975,
    or the date when the Union Carbide Pura-Siv “N” controls
    are installed and operating, whichever is
    sooner, subject to the follow-
    ing conditions:
    1)
    Petitioner shall continue to submit to the Environmental Pro-
    tection Agency, Division of Air Pollution Control,
    2200 Church-
    ill Road,
    Springfield,
    Illinois, 62706,
    bi-monthly progress
    reports detailing:
    a)
    Progress made on the installation of the molecular sieve
    on
    Plants
    #1
    and
    #2;
    b)
    Amount of acid produced by Plants #1,
    #2,
    and
    #3;
    c)
    Amount of acid needed to meet Petitioner’s external and
    internal needs.
    2)
    Plants
    #1 and #2 shall only be operated when Plant
    #3 cannot
    meet demands.
    3)
    The bond posted in compliance with the Order in PCB 73-325
    shall remain in effect to guarantee construction and install-
    ation of equipment herein required.
    I,
    Christan L. Moffett, Clerk of the Illinois Pollution Control
    Board, certify that the above Opinion and Order was adopted by the
    Board on the 10th
    day of
    October
    ,
    1974,
    by a vote of
    5
    to
    0
    .
    14
    119

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