ILLINOIS POLLUTION CONTROL BOARD
    March 11,
    1992
    IN THE MATTER OF:
    )
    PETITION OF AMOCO OIL
    COMPANY
    )
    AS 91-4
    FOR ADJUSTED STANDARD FROM
    )
    (Adjusted Standard)
    35 ILL ADM. CODE SECTIONS
    725.213(d) (1) (B) and 725.321(a)
    OPINION
    ~AND
    ORDER OF THE BOARD
    (by J.
    Anderson):
    This matter comes before the Board on the petition for
    adjusted standard filed on May 10,
    1991, by Amoco Oil Company
    (Amoco).
    Amoco requests an adjusted standard from the closure
    and design provisions of 35
    Ill. Adm. Code 725.213(d) (1) (B)
    and
    725.321(a)
    respectively; Amoco seeks to delay closure of certain
    wastewater treatment ponds at its Wood River facility so as to
    use them to treat nonhazardous waste.1
    In accordance with 35 Ill. Adm. Code 106.712, Amoco notified
    the Board on June 10,
    1991, that it caused notice to be timely
    publIshed in The Telegraph
    (Alton)
    and in the Journal of Wood
    River Township.
    On June 6,
    1991, the Board ordered that Amoco
    address certain deficiencies.
    On July 5,
    1991, Amoco filed an
    amendment to its petition in response to that Board Order.
    On
    August
    2,
    1991, the Illinois Environmental Protection Agency
    (Agency)
    filed its response to the petition and amendment
    recommending approval.
    On August 22,
    1991,
    the Board granted an
    August 15,
    1991, motion by Amoco, with which the Agency
    concurred, to withdraw its request for hearing earlier contained
    in its May 10,
    1991 filing.
    No hearing has been held.
    BACKGROUND
    Amoco operated its Wood River Refinery from 1908 until 1981.
    Operations expanded during those years to include an adjacent
    petroleum additives plant, marketing distribution facility,
    and
    dock facilities,
    all
    of which are still
    in operation.
    The site
    is located in the American Bottoms floodplain valley of the
    Mississippi River.
    The ponds of concern are located on the east side of Amoco’s
    Wood River Riverfront Property (property).
    The property is
    surrounded by: the Mississippi River on the west; Wood River on
    1
    This is the second use of the adjusted standard proceeding
    for delayed closure.
    The first, Petition of Olin Corporation, AS
    90—8,
    February
    27,
    1992,
    includes
    a
    fuller
    discussion
    of th~
    process, which will only partially be repeated here.
    131—43

    2
    the east;
    Shell Oil Company on the south; and the former channel
    of Wood River on the north.
    (Pet. Introd., Appendix E,
    p.
    3-2).
    Amoco’s wastewater treatment system initially consisted only
    of multi—acre Ponds,
    designated as
    1,
    1A,
    2,
    2A,
    3,
    3A and
    4,
    situated on its Wood River Riverfront Property.
    The ponds were
    originally created in 1957 as borrow pits for constructing flood
    control levees by the Army Corps of Engineers.
    In 1977 Amoco
    added
    a treatment plant to the wastewater system.
    Af~erthe refinery closed,
    the wastewater treatment plant
    was donated to the City of Wood River
    (Wood River), while Amoco
    retained ownership of the ponds.
    By agreement, Amoco must store
    in its ponds wastewater from what is now Wood River’s Publicly
    Owned Treatment Works
    (POTW), as needed by the POTW for
    maintenance or other operational needs.
    The Ponds constitute a RCRA surface impoundment area,
    and
    are considered part of AMOCO’s interim status facility.
    They
    cover about 40 acres.
    Historically, the ponds were used for
    storage and equalization of surface water run—off and process
    wastewater from the now—closed refinery before treatment,
    as well
    as for managing Dissolved Air Flotation
    (DAF)
    float.
    While
    analytical data
    is not available to fully characterize the
    constituents of the process wastewater,
    the DAF float is a listed
    hazardous waste.
    (Pet.
    p.
    3,
    7, Appendix E; Amend.
    Pet.
    p.
    3;
    Attach.
    6,
    7).
    The East Surge Pond (ESP)
    is a designation that refers to
    Ponds
    2,
    2A,
    3,
    3A and
    4 of the RCRA surface impoundment area,
    and it is the area in which these ponds are located which is the
    subject of this delayed closure petition.
    The remaining Ponds
    are designated as the West Surge Pond
    (WSP)
    and are to be closed;
    currently the WSP functions as the surge pond for Wood River’s
    POTW.2
    The intended use of the ESP
    is to delay closure so as to
    continue to provide nonhazardous wastewater storage capacity for
    Amoco and Wood River’s POTW.
    More specifically, the sources of
    wastewater will include: domestic sewage and commingled
    stormwater from the Cities of Wood River, Hartford, and South
    Roxanna; process wastewater and stormwater from Amoco’s petroleum
    additives plant, as well as its marketing distribution and dock
    facilities; and groundwater pumped as part of Amoco’s hydraulic
    gradient control and subsurface hydrocarbon recovery program,
    as
    further discussed below.
    (Pet.
    p.
    7, Agency Resp.
    p.
    1, 2).~
    2
    A
    “permitted
    nonhazardous
    waste
    management
    unit”
    now
    occupies former Pond
    5,
    located south of the ESP and east of the
    WSP.
    (Pet. Appendix E,
    p.
    3—2; amend.
    Pet.
    attach.
    3).
    3The Board has paginated the unnumbered pages of the Agency’s
    Response.
    131—44

    3
    All hazardous waste liquids and sludges have been removed
    from those portions of the ESP that will be reconfigured for
    receiving the nonhazardous wastewaters,
    i.e.
    a partition of Pond
    2 and Ponds 2A,
    3,
    3A and 4; these ponds will be hydraulically
    connected by dike removal or culverts, and then graded and lined
    with one foot of compacted clay.
    The hazardous liquids and
    puinpable sludges that were removed were chemically fixed.
    The
    chemically fixed material was delisted by the USEPA and placed in
    an onsite, permitted,
    nonhazardous waste landfill.
    The
    supernatent storm water and surface water run—on was pumped to
    the Temporary Surge Basin or the West Surge Pond before being
    treated at the Wood River POTW.
    The non-pumpable “heavy” sludges
    are being removed in two steps:
    they are transferred from Ponds
    3 and 4 to the southern portion of Pond 2 for temporary storage;
    next these sludges will be solidified and transferred into a new
    landfill called the Pond
    1 Landfill, which will be located in the
    area of Pond
    1 and the north portion of Pond 2.
    (Pet. Appendix
    D,
    F;
    Amend.
    Pet.
    Attach.
    E).
    There are about seven employees involved
    in operating the
    ESP and about 350 employees at the adjacent Amoco facilities.
    (Pet.
    p.
    7, and a location map and site plan in Appendix F).
    REGULATORY
    FRAMEWORK
    Since
    1985, Amoco has been implementing under interim status
    a
    RCRA
    closure of its Wood River Riverfront property, including
    the RCRA surface impoundment area.
    Then,
    in 1989,
    the USEPA
    amended the RCRA regulations to, under certain circumstances,
    allow facilities to delay closure after the final receipt of
    hazardous waste in order to continue to receive non-hazardous
    wastes in a surface impoundment.
    In April,
    1990, Amoco submitted to the Agency a Delayed
    Closure Plan,
    as part of the Amended Closure Plan,
    which
    addressed the disposal of remaining wastes and proposing the
    construction of a new basin,
    the ESP,
    as described above.
    The
    Agency approved the plan in June 1990.
    Within the Amended
    Closure Plan is the “Engineer Report Pond
    1 Landfill Riverfront
    Property, Wood River
    (former)
    Refinery”, detailing the
    construction of the Pond
    1 landfill, which was submitted to the
    Agency
    in March 1991 and approved in June 1991, with the
    following condition #13 which states:
    The delayed closure of the hazardous waste
    (S04)
    surface
    impoundments is subject to Illinois Pollution Control Board
    approval of the petition for adjusted standard as required
    by 35 IAC Section 725.213.
    (Agency Resp.
    p.
    2,3; see also Pet. Appendix D).
    On July 3,
    1990,
    as Amoco was preparing its RCRA Part B
    Permit Application for the ESP, the Board adopted the USEPA’~s
    131—45

    4
    delay of closure regulations.
    In the Matter of: RCRA Update.
    USEPA Regulations, R90-2,
    113 .PCB 131, July
    3,
    1990.
    The rules
    are found
    in the Board’s regulations at 35
    Ill. Adm. Code 724.213
    and 725.213.
    Part 724 contains standards for owners and
    operators of hazardous waste treatment,
    storage and disposal
    facilities; Part 725 contains interim status standards for owners
    and operators of hazardous waste treatment,
    storage and disposal
    facilities.
    The format and language of both Sections 724.213
    and
    725.213 is very similar.
    As required by 35 Ill. Adm. Code
    725.213(d),
    in October 1990, Amoco submitted its RCRA Part
    B
    Permit application to the Agency seeking the use of the delay of
    closure regulatory provisions to accept nonhazardous waste.
    The
    Agency has deferred reviewing the application until the Board
    acts on this petition.
    (Pet.
    p.
    8, para.
    12).
    In order to implement its delay of closure option, Amoco
    seeks an adjusted standard from two rules.
    First, Amoco seeks an adjusted standard from 35
    Ill.
    Adm.
    Code 725.213(d) (1) (B).
    In pertinent part the rule provides:
    d)
    Continued receipt of non—hazardous waste.
    The Agency shall
    permit an owner or operator to redeive non—hazardous wastes
    in a
    ***
    surface impoundment unit after the final receipt of
    hazardous wastes a~-that unit if:
    1)
    The owner or operator submits
    *~*
    a new Part
    B
    application if none was previously submitted,
    and
    demonstrates that:
    ~
    B)
    There is a reasonable likelihood that the owner or
    operator or another person will receive non—
    hazardous waste
    in the unit within one year after
    the final receipt of hazardous wastes; and ~
    It
    is the one year requirement from which Amoco seeks
    relief.
    Even apart from the fact that the final receipt of
    hazardous wastes occurred in 1981, Amoco asserts that one year
    would not provide enough time to design,
    permit and construct the
    ESP
    in any event.
    (Pet.
    p.
    4,5).
    Second, Amoco seeks an adjusted standard from the 35 Ill.
    Adm. Code 725.321(a).
    In pertinent part the rule provides,
    for
    surface impoundments receiving hazardous waste:
    Section 725.321
    Design Requirements
    a)
    The owner or operator of
    a surface impoundment must
    install two or more liners and leachate collection
    system in accordance with 35 Ill.
    Adin.
    Code 724.321(c),
    with respect to each new unit,
    replacement of an
    existing unit,
    or lateral expansion of an existing unit
    131—46

    5
    that is within the area identified in the Part A permit
    application,
    and with respect to waste received
    beginning May 8,
    1985.
    (Pet.
    p.
    4,
    5).
    It is the multi-liner and.leachate collection system from
    which Amoco seeks relief, on the basis that no hazardous wastes
    will be disposed.
    Why an adjusted standard is needed from this provision needs
    some explaininci.
    First,
    the adjusted standard provisions,
    containe’d in the rule of general applicability at
    35 Ill. Adm.
    Code 725.213(e), provide
    in the first paragraph:
    Surface impoundments.
    In addition to the requirements
    in subsection
    (d)
    see
    above
    an owner or operator of
    a
    hazardous waste surface impoundment which
    is not in
    compliance with the liner and leachate collection
    system requirements in Section 725.321(a)
    shall receive
    non—hazardous wastes only as authorized by an adjusted
    standard pursuant to this subsection.
    Section 725.321(a),
    quoted earlier above,
    references 35 Ill.
    Adm. Code 724.321(c).
    That Section contains more specificity
    regarding the liners,
    and,
    importantly,
    its requirements apply
    “with respect to all waste received after the issuance of the
    permit”.
    We also note that 35 Ill.
    Adin. Code 724.213(e)
    requires
    an adjusted standard
    in essentially the same manner as does the
    interim status adjusted standard provisions of
    35 Ill. Adm. Code
    725.213(e)
    quoted in part above.
    We will discuss this further
    in
    the Board Discussion segment of the Opinion.
    The Agency agrees that the rules proposed by Amoco are the
    appropriate standards from which an adjusted standard
    is sought.
    (Agency Resp.
    p.
    3).
    Amoco believes that its impoundment
    is covered by Part 725,
    the interim status regulations.
    Amoco alternatively requests an
    adjusted standard consistent with its petition from Part 724,
    the
    regulations addressing permitted facilities,
    if determined as
    appropriate by the Board.
    (Pet.
    p.
    22).
    JUSTIFICATION
    We will summarize here Amoco’s responses to the levels of
    justification regarding the two rules from which Amoco requests
    relief.
    (We note that the information required in the Board’s
    procedural regulations
    is distributed throughout various parts of
    the Opinion for clarity.
    See Section 28.1 of the Environmental
    Protection Act
    (Act)
    and 35 Ill.
    Adm. Code 106.705 generally.)
    35
    Ill. Adm.
    Code 725.213(d)(1)(B).
    Since Section
    725.213(d)
    (1)
    (B) does not specify the level of justification in
    13 1—47

    6
    the rule,
    the adjusted standard determination is based on
    adequate proof by Amoco that the justifications in Section
    28.1(c)(1),(2),(3)
    and
    (4)
    of the Act are satisfied.
    The
    justifications and Amoco’s responses are:
    Section 28.1(c)
    1.
    Factors relating to the petitioner are substantially and
    significantly different from the factors relied upon by the Board
    in adopting the general regulation.
    Response: The Board regulation corresponds to the federal
    regulation providing for delayed closure
    (40 CFR
    265.113(d)(1)(ii)).
    Both contemplate that delayed closure will
    involve waste removal and receipt of wastes immediately
    thereafter without retrofitting.
    Amoco’s approach is more time
    consuming,
    but, Amoco asserts,
    is more protective of the
    environment.
    Instead of disposing of the liquids and sludges
    offsite, Amoco
    is consolidating and chemically treating the
    wastes and then disposing them onsite.
    In addition, Amoco opted
    to close part of,
    and delay closure of the other part of, what is
    a large surface impoundment.
    However to do this requires some
    construction to create the ESP within the existing impoundment,
    and Amoco asserts that USEPA did not consider this in adopting
    the one year time frame.
    ~-
    Amoco also notes that it has been involved in clean—up and
    closure activities for several year-s following final receipt of
    hazardous waste in 1981 and prior to the delay of closure rules;
    thus it would have been impossible for Amoco to comply with the
    one year requirement in any event.
    (Pet.
    p.
    12,
    18,
    19, para.
    44(a))
    2.
    The existence of those factors justifies an adjusted
    standard.
    Response:
    Amoco could not have forseen in 1982, when its closure
    activities commenced,
    the compliance requirements of a regulation
    adopted in 1990.
    Even if this were not so, the project would
    have been multi-year in any event,
    given the magnitude of the
    closure and clean—up project involving development of work plans,
    securing of permits etc. and construction of an onsite permitted
    management unit for delisted
    wastes.
    (Pet.
    19,
    20,
    para.
    44(b)).
    We note that Illinois adopts the RCRA regulations “identical
    in substance”
    to the federal
    regulations.
    See Sections
    7.2
    and
    22.4
    of
    the
    Act.
    Thus,
    neither the Board
    nor the Agency
    have
    independently weighed the merits of the .USEPA’s regulation.
    131—48

    7
    3.
    The requested standard will not result in any environmental
    or health effects which are substantially and significantly more
    adverse than the effects considered by the Board in adopting the
    rule of general applicability.
    Response:
    The extension of time will not result in such
    significantly more adverse effects.
    Since the Refinery closed
    and closure activities began in 1982, Amoco has (since 1984 and
    expanded in 1990)
    maintained a groundwater monitoring program
    that encompasses the perched water table and the uppermost
    aquifer.~ The program also identifies the limits of an
    underground hydrocarbon pool on top of the groundwater table,
    identified in 1984,
    and located just north of the ESP,
    but partly
    located under Pond 2.
    (The pool contains an estimated 6,400
    barrels of liquid,
    is about 100,000 square feet across with an
    average thickness of one foot, and its structure has remained
    unchanged since
    1986).
    Pursuant to an Interim Corrective Action
    Program,
    there is groundwater hydraulic gradient control
    in the
    vicinity of the pool, which is being managed by operation of a
    cone
    o.f depression groundwater pumping system at the former
    Refinery.
    (Pet.
    p.
    9,
    20,
    para.
    (c); Appendix F); Amend.
    Pet.
    p.
    2.,
    Exh.
    E; Agency Resp.
    p.
    2).
    4. The adjusted standard is consistent with federal law.
    Response:
    See 1. above.
    The petition
    is consistent with the
    premise underlying the delay of closure regulations insofar as
    units that formally held hazardous wastes are being beneficially
    utilized where appropriate.
    (Pet.
    p.
    20,
    21, para.
    (d).
    Amoco also notes that it has submitted the required
    Contingent Corrective Measures Plan and Hazardous Waste Removal
    Plan as part of its Part B Permit application.
    (Pet.
    p.
    20,
    para.
    47)
    35 Ill. Adm.
    Code 725.321(a).
    Since
    35 Ill.
    Adm. Code
    725.321(a),
    a rule of general applicability,
    specifies
    a level of
    justification, which Amoco asserts consists of two criteria,
    Section 28.1(b)
    of the Act applies.
    The two “criteria” addressed
    by Amoco relate to its plan for removing hazardous wastes and its
    contingent corrective measures plan, which must be included
    in
    the petition.
    (See Section 725.213
    (e)(1)(A)
    and
    (B)).
    First, pursuant to 35
    Ill. Adm. Code 725.213(e) (2), Amoco
    has submitted a Hazardous Waste Removal Plan which provides for
    removal of all the wastes to the extent practicable, to be
    completed within 90 days following final receipt of hazardous
    waste,
    unless the petitioner demonstrates to the Board that the
    removal will take longer and that the extension will not pose a
    threat to human health and the environment.
    (Pet.
    p.
    6,
    Para.
    5., Appendix D).
    For reasons expressed earlier, Amoco asserts
    13 1—49

    8
    that it has demonstrated why completion of its removal of the
    hazardous wastes within 90 days was not practicable.
    Second, pursuant to 35 Ill. Adm. Code 725.213(e) (3), Amoco,
    as noted above, has submitted a Contingent Corrective Measures
    Plan which addresses the requirements of 35
    Ill. Adm. Code
    724.199
    the
    Compliance Monitoring Program
    and is to be
    implemented within one year after a release or within one year of
    grant of an adjusted standard, whichever is later.
    (Pet.
    p.
    6,
    Para.
    6, Appendix E).
    The justifications required for an adjusted standard
    criteria in Section 725.213
    (e)
    contains a sizeable number of
    justifications,
    many of which address actions that have already
    been taken by Amoco or are related to adjusted standards needed
    in the event of a release.
    The Agency states that, under the Amended Closure Plan,
    which it has already approved, Amoco properly completed the waste
    removal process.
    As verified by Agency field inspection and
    follow-up Field Operations Section reports, Amoco has removed
    contaminated sludges from the RCRA surface impoundments.
    Also,
    Amoco has proposed to stabilize the sludges and place them in a
    RCRA landfill.
    The Agency asserts that these clean-up steps are
    in accordance with 35
    1L1. Adm. Code 725.213(e) (1) (A), which
    requires that a petition for adjusted standard must include
    a
    plan for removing hazardous wastes; and 725.213(e) (2), which
    requires that the removal plan provide for removing all hazardous
    liquids and hazardous sludges to the extent practicable while
    preserving liner integrity.
    ALTERNATIVES
    As an interim status facility, Amoco states that its options
    at the time were:
    a) Closure under 35
    Ill.
    Adm. Code 725.213(b);
    b)
    Delay of closure under 35
    Ill. Adm. Code 725.213(d);
    or
    c)
    Installation of minimum technology requirements
    (two or more
    liners and
    a leachate collection system)
    under
    35
    Ill. Adm. Code
    724.321(a).
    Amoco chose option
    (b).
    (Pet.
    p.
    .7).
    Amoco could comply with 35 Ill.
    Adm. Code 725.321(a) by
    installing two liners and a leachate collection system.
    These
    installations would cost about $6.2 million,
    an amount which
    is
    in addition to the $28.8 million already spent or committed on
    the Riverfront Property for remediation and closure.
    Yearly
    maintenance and operating for the new liner and leachate
    collection system would be about $110,000.
    Alternatively, Amoco could withdraw its current Part B
    application and close the ESP as a RCRA landfill pursuant to Ill.
    Adm. Code 725.
    The capital costs would be about $41.4 million.
    Yearly operating and maintenance costs would be about $500,000.
    13
    1—50

    9
    Amoco
    asserts that,
    without grant of its petition,
    it will
    be forced to spend $6.2 million to $41.4 million, the extra
    expenditures would not provide additional environmental
    protection,
    and Wood River’s POTW would not have use of the
    ponds.
    (Pet.
    p.
    4).
    Amoco has no alternative to compliance with the one-year
    requirement of 35 Ill.
    Adm. Code 725.213(d) (1) (B);
    as noted
    earlier,
    the final receipt of hazardous wastes into the ESP
    occurred in 1981, nine years prior to the effective date of the
    delay
    of’ closure regulations.
    The Agency agrees with the above estimates,
    although noting
    that the Agency did not conduct an independent cost analysis for
    each alternative.
    (Agency Resp.
    p.
    4).
    ENVIRONMENTAL EFFECTS
    In accordance with the Agency—approved Closure Plan,
    Amoco
    has removed all liquid hazardous wastes and consolidated nearly
    all of the hazardous sludges, to the extent practicable, from the
    ESP.
    The USEPA has stated that this approach will reduce the
    threat posed by any release to the environment from a surface
    impoundment.
    (54 Fed. Reg.
    33376, August
    14,
    1989).
    To ensure that all wastewaters placed into the ESP will be
    non—hazardous, under its permit Amoco will sample the first
    discharge to the ESP each quarter.
    Also, Amoco will use its
    existing Contingency Plan to manage any incident threatening the
    quality of the wastewater
    .
    (See Appendix
    I)..
    Amoco’s RCRA Part
    B permit application contains the provisions for detection and
    mitigation of releases
    in accordance with 35 Ill. Adm. Code 724.
    The ES?
    is to be lined with a “nominal” one-foot thick
    imported clay liner,
    so as to reduce migration of the stored
    wastewater from the ESP.
    Amoco’s consultant, using a computer
    model,
    evaluated the potential impact on groundwater and ongoing
    remediation efforts.
    10,000 days after recharge was initiated,
    simulated steady-state conditions were observed; the uppermost
    aquifer exhibited no rise in hydrostatic head,
    indicating that
    there would be no change in the direction of groundwater flow and
    that the current monitoring system could monitor any releases.
    -Amoco does note that liners and a leachate collection system
    would slightly diminish the likelihood of subsurface wastewater
    migration as compared to its proposed clay liner.
    However, Amoco
    asserts that,
    even if migration occurred, significant changes to
    groundwater quality would be unlikely, given that the wastewater
    is non—hazardous.
    Amoco notes that it has installed a groundwater system to
    monitor the uppermost aquifer pursuant to 35 Ill. Adm.
    Code:
    Subpart F.
    Should a release be detected, Amoco will implement
    131—51

    10
    the Contingent Corrective Measures Plan pursuant to 35
    Ill. Adm.
    Code 725.213(e)(5).
    All groundwater assessment activities will
    be performed and reported quarterly in accordance with the
    Sampling Analyses Plan.
    (Pet. Appendix H).
    Non—hazardous wastewaters would occasionally fill the ES?,
    and normal evaporation could potentially release minute amounts
    of hydrocarbons to the atmosphere.
    However, Amoco asserts that
    the evaporative emissions would be identical if, absent grant of
    the petition, Amoco elected to install a liner and leachate
    collecti’on system.
    (Pet.
    p.
    13-15).
    AMOCO’S AND AGENCY’S PROPOSED LANGUAGE
    Amoco asserts that construction and permitting schedules
    will dictate the schedule for accepting non—hazardous wastewaters
    into the ESP.
    Therefore, Amoco proposes that the Agency approve
    the schedule for implementing the delay of closure provision.
    Amoco proposes the following adjusted standard language to
    provide relief from the “within one year” requirement of
    35 Ill.
    Adm. Code 725.213(d) (1) (B):
    Amoco
    is authorized to begin receiving non—hazardous
    wastewaters in the East Surge Pond upon approval of
    this Petition.
    Th~
    schedule for receiving non-
    hazardous wastewaters will be subject to approval by
    the Environmental Protection Agency.
    (Pet.
    p.
    12).
    Pursuant to Section 725.213(e), Amoco also requests that it
    be authorized to “receive non-hazardous wastewaters in the ESP
    for purposes of
    storing the wastewaters prior to treatment at the
    City’s POTW,
    prior to formal closure.
    In this regard,
    Amoco
    proposes the following language:
    Amoco Oil Company may receive non—hazardous wastewaters
    into its East Surge Pond,
    subject to the conditions
    specified in 35 AC 725.213(e) (8)
    (C)
    (i) through
    (vi).
    (Pet.
    p.
    13).
    The Agency proposes revisions encompassing the language in
    the first paragraph of Amoco’s proposal as follows:
    Amoco Oil Company may receive only non—hazardous
    wastewaters into the East Surge Pond on its Wood River
    Riverfront Property following Illinois Environmental
    Protection Agency approval of a modified closure plan
    that includes a schedule for receiving non-hazardous
    waste.
    (Agency Resp.
    p.
    4).
    13 1—52

    11
    The Agency asserts that
    it did not have conditions to
    recommend,
    although we note that its proposed language conditions
    the effectiveness of the adjusted standard. on subsequent Agency
    action.
    The Agency also did suggest that the Board include the
    conditions stated in 35 Ill. Adm. Code 725.213(e) (8) (C) (i—vi)
    and
    referred to by Amoco.
    The Agency also noted that 35 Ill.
    Adm.
    Code 725.213.(e)(8)(C)(v)
    should reference the reasons for
    terminating the adjusted standard found at
    35 Ill. Adm. Code
    725.213(e)(7)(A).
    (Agency Resp.
    p.
    4,5).
    Board Di’~scussion
    The Board finds that Amoco has provided sufficient
    justification for its requested grant of an adjusted standard.
    We believe that Amoco has demonstrated that:
    1.
    Amoco has justified its requested relief from the
    requirement that non—hazardous waste be received within one
    year after final receipt of hazardous waste,
    as required by
    35
    Ill.
    Adm. Code 725.213(d)
    (l)(B).
    2.
    The Hazardous Waste Removal Plan, originally provided to the
    Agency as part of Amoco’s Part B Permit Application, has
    been implemented and satisfies the level of justification
    required by 35
    IlL. -Adm.
    Code 725.213(e) (2).
    Regarding
    Section 725.213(e) (2) (C), the Board specifically finds that
    Amoco has demonstrated that the removal of hazardous waste,
    of necessity,
    could not be achieved within 90 days.
    3.
    The Contingent Corrective Measures Plan meets the
    justification level of 35
    Ill. Adm. Code 725.213(e) (3).
    4.
    No significant adverse human health or environmental impacts
    are expected.
    5.
    The additional expenditures that Amoco would otherwise have
    to spend is not warranted in relation to any environmental
    benefit,
    and Wood River will benefit from the project.
    6.
    The justification requirements of Section 28.1(b) and
    (c)
    have been satisfied.
    We now refer to Amoco’s request that the Board alternatively
    grant the adjusted standards from Part 724 if we determine that
    is the appropriate course.
    We have determined that the
    appropriate relief for Amoco is to grant
    it an adjusted standard
    from the comparable provisions in both Part 724 and 725.
    We note that the Opinion accompanying the adjusted standard
    granted to Olin Corporation discussed situations similar to that
    which we find here.
    (In the Matter of: Petition of Olin
    Corporation for an Adlusted Standard from 35
    111.
    Adin.
    Code 724
    131—53

    12
    and 725 Related to Closure and Post Closure of RCRA Regulated
    Surface Impoundments AS 90—8,
    February 27,
    1992).
    We conclude that the adjusted standard relief granted to
    Amoco under the interim status provisions of Part 725 does not
    provide for continued permit—related operations; adjusted
    standard relief is required under the permit—related provisions
    of Part 724.
    As earlier noted,
    the liner and leachate requirements
    of
    Section 724.321(c)
    apply to waste received after the issuance of
    the permit.
    Also, while we recognize that Section 724(d) (1) (B)
    speaks only to a “modified” permit situation, we note that the
    language creates an anomoly when read in conjunction with its
    counterpart in Part 725, which speaks to both a new and
    “amended”
    permit situation.
    We conclude that granting an adjusted standard
    to the Part 724 counterparts of the Part 725 rules not only
    assures relief for continued operations,
    but also assures that
    the adjusted standard will be incorporated into Amoco’s Part B
    permit so as to be additionally enforceable as
    a permit
    condition.
    We also note that this approach avoids the potential
    for conflict between Agency—imposed permit conditions and those
    in the adjusted standard.
    As discussed in 01-in,
    the Board’s adjusted standard
    procedures contemplate situations where concurrent relief
    is
    needed, and are patterned after the USEPA procedure;
    requiring
    separate petitions would be “repititous and uneconomical”.
    (Id.
    Opinion p.
    7,8).
    We therefore will grant an adjusted standard
    from 35 Ill. Adm Code 724.213(d) (1) (B), 725.213(d) (1) (B),
    724.321(c)
    and 725.321(a).
    Finally,
    the following Order will be crafted differently and
    more completely than the language proposed by either the Agency
    or Amoco.
    We note that we have determined not to condition grant
    of the adjusted standard on Agency approval of a modified closure
    plan. The record indicates to us that the Agency has already
    approved such a plan,
    subject only to grant of adjusted standard.
    In any event,
    the Agency did not explain why it needed such a
    provision or otherwise explain why the adjusted standard should
    not take effect as of this date.
    The adjusted standard does not
    “waive” Agency authority;
    it simply allows the exercise of
    it
    consistent with Board regulation.
    We will include the-suggested
    conditions found in Section 725.213(e) (8) (C); the conditions are
    identical in its Part 724 counterpart.
    This constitutes the Board’s findings of fact and
    conclusions of law in this matter.
    13
    1—54

    13
    ORDER
    Pursuant to Section 28.1 of the Illinois Environmental
    Protection Act,
    and in accordance with the Opinion, the Board
    grants Amoco Oil Company an adjusted standard from 35 Ill.
    Adm.Code 725.213(d) (1) (B),
    724.213(d) (1) (B), 725.321(a),
    and
    724.321(c),
    subject to the following conditions:
    1.
    This adjusted standard applies to Amoco Oil Company’s East
    Surge Pond on its Wood River Riverfront Property, but only
    ins’ofar as the East Surge Pond rec’~ivesonly non—hazardous
    wastewaters.
    2.
    This adjusted standard specifically recognizes:
    a.
    A plan for removing hazardous wastes.
    b.
    A requirement that the owner or operator remove
    hazardous waste-s in accordance with the plan.
    c.
    A contingent corrective measures plan.
    d.
    A requirement that,
    in the event of a release,
    Amoco
    shall: within 35 days,
    file with the Board
    a petition
    for adjusted standard; implement the corrective
    measures plan;
    and,
    file semi-annual reports with the
    Agency.
    e.
    A condition that the adjusted standard will terminate
    if Amoco fails to: implement the removal plan;
    or,
    timely file a required petition for adjusted standard.
    The reasons for terminating the adjusted standard are
    found at 35
    Ill. Adm.
    Code 725.213(e) (7) (a).
    f.
    A requirement that,
    in the event the adjusted standard
    is terminated, Amoco shall commence closure of the unit
    in accordance with the requirements of the closure plan
    and this Part.
    3.
    This adjusted standard shall be included as a condition in
    Amoco’s Part B permit.
    4.
    At any time, Amoco or the Agency may petition the Board to
    modify the terms and conditions of this adjusted standard.
    Section 41 of the Illinois Environmental Protection Act,
    Ill.
    Rev.
    Stat.
    1991,
    ch.
    111
    1/2,
    par.
    1041,
    provides for appeal
    of final orders of the Board within 35 days.
    The Rules of the
    Supreme Court of Illinois establish filing requirements.
    IT IS SO ORDERED.
    131—55

    14
    I, Dorothy M. Gunn,
    Clerk of the Illinois Pollution Control
    Board, hereby certify that the above
    .0
    ~nion ançi Order was
    adopted on~he //~L day of
    ‘-~‘-~-‘~-‘
    ,
    1992 by
    a vote of
    /‘C)
    ~
    ~.
    Dorothy M. Gq~, Cl
    k’
    Illinois Pol~jAtionControl Board
    131—56

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