ILLINOIS POLLUTION CONTROL BOARD
    July 23, 1998
    ESG WATTS, INC.,
    Petitioner,
    v.
    ILLINOIS ENVIRONMENTAL
    PROTECTION AGENCY,
    Respondent.
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    PCB 97-210
    (Permit Appeal - Land)
    ORDER OF THE BOARD (by J. Yi):
    On May 4, 1998, petitioner ESG Watts, Inc. (Watts) filed a motion for summary
    judgment. On May 18, 1998, the Illinois Environmental Protection Agency (Agency) filed its
    response to the motion. Watts’ motion asserts that the Agency is barred by the doctrine of
    res
    judicata
    from imposing Class I groundwater monitoring standards upon Watts. The motion is
    premised on the argument that groundwater classification cannot be litigated in this proceeding
    because the same issue was resolved in People v. ESG Watts, Inc. (February 5, 1998), PCB
    96-107. The Board finds that litigation of the groundwater classification issue in this
    proceeding is not barred, and denies Watts’ motion for summary judgment.
    This proceeding was commenced on May 23, 1997, when Watts filed a petition for
    hearing (Pet), relating to a permit application received by the Agency on December 2, 1996,
    concerning Watts’ facility in Rock Island County (Taylor Ridge). The permit application
    seeks a revision to Watts’ closure and post-closure plans, and was assigned IEPA Log Number
    1996-404. On April 15, 1997, the Agency approved the permit application with conditions.
    Watts identified one specific condition with which it took issue, and reserved the right to raise
    additional grounds for reversal of the Agency’s decision. The condition to which Watts
    objects is the inclusion of a groundwater monitoring program “which was not included in the
    permit application and which the [Agency] has unilaterally imposed.” Pet. at 1. The
    groundwater monitoring program treats the groundwater under the Taylor Ridge landfill as
    Class I (potable resource) groundwater. Permit Attachment A at 2,
    6(b).
    On February 5, 1998, the Board rendered a decision in PCB 96-107, an enforcement
    action filed against Watts by the attorney general on behalf of the people of the State of
    Illinois. The violations alleged in PCB 96-107 concerned Watts’ operation of the Taylor Ridge
    landfill. Among the violations alleged against Watts in PCB 96-107 was a violation of 35 Ill.
    Adm. Code 620.410, which sets forth quality standards for Class I groundwater. The Board
    found in PCB 96-107 that the complainant had failed to prove that Class I groundwater
    standards applied, and applied instead Class II groundwater standards.

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    Watts now asserts that under the doctrine of
    res judicata
    , the Board’s determination in
    PCB 96-107 bars relitigation of groundwater classification in this proceeding. The Agency
    argues that the requirements for application of
    res judicata
    have not been met.
    Res judicata
    is the legal doctrine which states that “once a cause of action has been
    adjudicated by a court of competent jurisdiction, it cannot be retried again between the same
    parties or their privies in a new proceeding.” Burke v. Village of Glenview, 257 Ill. App. 3d
    63, 69, 628 N.E. 2d 465, 469 (1st Dist. 1993). The elements of
    res judicata
    are (1) a final
    judgment on the merits rendered by a court of competent jurisdiction, (2) an identity of cause
    of action, and (3) an identity of parties, or privity between subsequent parties and the original
    parties. People
    ex rel.
    Burris v. Progressive Land Developers, Inc., 151 Ill. 2d 285, 294, 602
    N.E. 2d 820, 825 (1992). Where these elements are present, a judgment in a suit between the
    parties will be conclusive of all questions decided as well as questions which could have been
    litigated and decided, and will bar relitigation of any such issues in a subsequent action.
    Id.
    The Board agrees with the Agency that
    res judicata
    does not apply between PCB 96-
    107 and this proceeding because there is not the required identity of causes of action. An
    enforcement case and a permit appeal are not the same “cause of action,” primarily because of
    the different inquiry involved in each.
    The Board next addresses the doctrine of collateral estoppel. Collateral estoppel can
    apply to preclude relitigation of a specific issue, even where the requirements for application
    of
    res judicata
    are not met. Although collateral estoppel is often recognized as a branch of
    res
    judicata
    , courts just as regularly make no distinction between the doctrines. Cirro Wrecking
    Company v. Anthony Roppolo, 153 Ill. 2d 6, 605 N.E. 2d 544 (1992) (citations omitted).
    And, although it has been noted that both doctrines are subject to traditional analyses, there
    may be no area of law less susceptible to rigid formulation.
    Id
    .
    The Illinois Supreme Court has identified three minimum threshold requirements for
    the application of collateral estoppel. They are: (1) that the issue decided in the prior
    adjudication is identical with the one presented in the suit in question, (2) that there was a final
    judgment on the merits in the prior adjudication, and (3) that the party against whom estoppel
    is asserted was a party or in privity with a party to the prior adjudication. Talarico v. Dunlap,
    177 Ill. 2d 185, 191; 685 N.E. 2d 325, 328 (1997).
    Even if these threshold elements are satisfied, collateral estoppel does not apply in this
    case. Under Illinois and federal law, there are exceptions to its applicability. The Illinois
    Supreme Court ruled in Talarico that even where the threshold elements of the doctrine are
    satisfied and an identical common issue is found to exist between a former and current lawsuit,
    collateral estoppel must not be applied to preclude parties from presenting their claim or
    defenses unless it is clear that no unfairness results to the party being estopped.
    Id
    .
    In the Restatement (Second) of Judgment there are several exceptions to this doctrine.
    One such exception is that collateral estoppel does not apply if the burden of proof has shifted
    from the party against whom the doctrine is to be applied to its adversary. Restatement
    (Second) §28 (4). Here, the burden of proof has shifted. In PCB 96-107, the Agency had the

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    burden of proof. The Board found that there was not sufficient evidence before it to make a
    finding on the groundwater classification issue. Since the Agency had failed to meet its burden
    of proof, the Board considered the groundwater to be Class II as required by 35 Ill. Adm.
    Code 620.220(a). In this permit appeal, Watts has the burden of proof. See 415 ILCS
    5/40(a). Watts’ burden is to prove “that it is entitled to a permit and that the Agency’s reasons
    for denial are either insufficient or improper.” ESG Watts v. PCB, 286 Ill. App. 3d 325,331,
    676 N.E.2d 299, 303 (3rd Dist. 1997). Since the burden has shifted from the Agency to its
    ‘adversary,’ the exception applies and imposing collateral estoppel is inappropriate.
    The Board concludes that even if the threshold elements for collateral estoppel are
    satisfied in this case, it is not applicable given the aforementioned exception. Accordingly,
    Watts’ motion for summary judgment is denied.
    In making this ruling, the Board does not intend to alter the interpretation of the
    groundwater rules reached in PCB 96-107; specifically, that groundwater not shown to be
    Class I, III, or IV, is to be considered as Class II groundwater. Thus, if no evidence
    pertaining to the classification of groundwater is present on the record in the instant case to
    demonstrate otherwise, the Board will consider the groundwater at Taylor Ridge to be Class II.
    IT IS SO ORDERED.
    I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, hereby certify that
    the above order was adopted on the 23rd day of July 1998 by a vote of 6-0.
    Dorothy M. Gunn, Clerk
    Illinois Pollution Control Board

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