Harmon Industries v. Carol Browner , 191 F.3d 894 ( 1999 )


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  •                     United States Court of Appeals
    FOR THE EIGHTH CIRCUIT
    ___________
    No. 98-3775
    ___________
    Harmon Industries, Inc.,                 *
    *
    Appellee,                    *
    *
    v.                                    *
    *
    Carol M. Browner, in her official        *
    capacity as Administrator of the         *
    United States Environmental              *
    Protection Agency; United States         *
    of America; United States                *
    Environmental Protection Agency,         *
    *
    Appellants.                  *
    * Appeal from the United States
    _____________________________            * District Court for the
    * Western District of Missouri.
    Pacific Legal Foundation; Michigan       *
    Manufacturers Association;               *
    Mississippi Manufacturers                *
    Association; Illinois Manufacturers      *
    Association; South Carolina              *
    Chambers of Commerce;                    *
    Environmental Federation of              *
    Oklahoma; Arkansas                       *
    State Chamber of Commerce;               *
    Associated Industries of Arkansas,       *
    Inc.; Wisconsin Manufacturers and        *
    Commerce; The Texas Natural              *
    Resource Conservation Commission;        *
    American Forest & Paper Associa-         *
    tion; American Iron & Steel             *
    Institute; American Petroleum           *
    Institute; Chamber of Commerce of       *
    the United States; Chemical             *
    Manufacturers Association; Corporate    *
    Environmental Enforcement Council;      *
    Commercial Affairs Committee of         *
    the Hazardous Waste Action              *
    Coalition; National Association of      *
    Manufacturers; National Mining          *
    Association; National Petrochemical     *
    & Refiners Association; Rubber          *
    Manufacturers Association; Utility      *
    Solid Waste Activities Group;           *
    Washington Legal Foundation;            *
    Missouri Chamber of Commerce;           *
    Associated Industries of Missouri,      *
    *
    Amici on Behalf             *
    of Appellee.                *
    ___________
    Submitted: April 22, 1999
    Filed: September 16, 1999
    ___________
    Before BEAM and HANSEN, Circuit Judges, and MOODY,1 District Judge.
    ___________
    HANSEN, Circuit Judge.
    1
    The Honorable James M. Moody, United States District Judge for the Eastern
    District of Arkansas, sitting by designation.
    -2-
    Harmon Industries, Inc., (Harmon) filed this action pursuant to the
    Administrative Procedure Act, 5 U.S.C. § 706 (1994), seeking judicial review of a final
    decision of the United States Environmental Protection Agency (EPA). The district
    court2 granted summary judgment in favor of Harmon and reversed the decision of the
    EPA. The EPA appeals. We affirm.
    I.
    FACTS AND PROCEDURAL BACKGROUND
    Harmon Industries operates a plant in Grain Valley, Missouri, which it
    utilizes to assemble circuit boards for railroad control and safety equipment. In
    November 1987, Harmon’s personnel manager discovered that maintenance
    workers at Harmon routinely discarded volatile solvent residue behind Harmon’s
    Grain Valley plant. This practice apparently began in 1973 and continued until
    November 1987. Harmon’s management was unaware of its employees' practices
    until the personnel manager filed his report in November 1987. Following the
    report, Harmon ceased its disposal activities and voluntarily contacted the Missouri
    Department of Natural Resources (MDNR). The MDNR investigated and
    concluded that Harmon’s past disposal practices did not pose a threat to either
    human health or the environment. The MDNR and Harmon created a plan whereby
    Harmon would clean up the disposal area. Harmon implemented the clean up plan.
    While Harmon was cooperating with the MDNR, the EPA initiated an
    administrative enforcement action against Harmon in which the federal agency
    sought $2,343,706 in penalties. Meanwhile, Harmon and the MDNR continued to
    establish a voluntary compliance plan. In harmonizing the details of the plan,
    2
    The Honorable Ortrie D. Smith, United States District Judge for the Western
    District of Missouri.
    -3-
    Harmon asked the MDNR not to impose civil penalties. Harmon based its request
    in part on the fact that it voluntarily self-reported the environmental violations and
    cooperated fully with the MDNR.
    On March 5, 1993, while the EPA's administrative enforcement action was
    pending, a Missouri state court judge approved a consent decree entered into by the
    MDNR and Harmon. In the decree, MDNR acknowledged full accord and
    satisfaction and released Harmon from any claim for monetary penalties. MDNR
    based its decision to release Harmon on the fact that the company promptly self-
    reported its violation and cooperated in all aspects of the investigation. After the
    filing of the consent decree, Harmon litigated the EPA claim before an
    administrative law judge (ALJ). The ALJ found that a civil penalty against Harmon
    was appropriate in this case. The ALJ rejected the EPA’s request for a penalty in
    excess of $2 million but the ALJ did impose a civil fine of $586,716 against
    Harmon. A three-person Environmental Appeals Board panel affirmed the ALJ’s
    monetary penalty. Harmon filed a complaint challenging the EPA’s decision in
    federal district court on June 6, 1997. In its August 25, 1998, summary judgment
    order, the district court found that the EPA’s decision to impose civil penalties
    violated the Resource Conservation and Recovery Act and contravened principles
    of res judicata. See Harmon Indus., Inc. v. Browner, 
    19 F. Supp. 2d 988
    (W.D. Mo.
    1998). The EPA appeals to this court.3
    II.
    DISCUSSION
    A. The Permissibility of Overfiling
    3
    Approximately thirty different organizations filed six amicus curiae briefs in
    support of Harmon Industries.
    -4-
    When reviewing a federal agency’s interpretation of a federal statute, a
    federal court must defer to the agency’s interpretation only if it finds that the
    agency’s interpretation is consistent with the plain language of the statute or
    represents a reasonable interpretation of an ambiguous statute. See Chevron
    U.S.A., Inc. v. Natural Resources Defense Council, Inc., 
    467 U.S. 837
    , 842-45
    (1984). We review de novo a district court’s findings and conclusions regarding the
    correctness of an agency’s statutory interpretations. See Moore v. Custis, 
    736 F.2d 1260
    , 1262 (8th Cir.1984).
    The Resource Conservation and Recovery Act (RCRA), 42 U.S.C. § 6901-
    6992K (1994), permits states to apply to the EPA for authorization to administer
    and enforce a hazardous waste program. See 42 U.S.C. § 6926(b). If authorization
    is granted, the state’s program then operates “in lieu of” the federal government’s
    hazardous waste program. 
    Id. The EPA
    authorization also allows states to issue
    and enforce permits for the treatment, storage, and disposal of hazardous wastes.
    
    Id. "Any action
    taken by a State under a hazardous waste program authorized under
    [the RCRA] [has] the same force and effect as action taken by the [EPA] under this
    subchapter." 42 U.S.C. § 6926(d). Once authorization is granted by the EPA, it
    cannot be rescinded unless the EPA finds that (1) the state program is not
    equivalent to the federal program, (2) the state program is not consistent with
    federal or state programs in other states, or (3) the state program is failing to
    provide adequate enforcement of compliance in accordance with the requirements
    of federal law. See 42 U.S.C. § 6926(b). Before withdrawing a state’s
    authorization to administer a hazardous waste program, the EPA must hold a public
    hearing and allow the state a reasonable period of time to correct the perceived
    deficiency. See 42 U.S.C. § 6926(e).
    Missouri, like many other states, is authorized to administer and enforce a
    hazardous waste program pursuant to the RCRA. Despite having authorized a state
    -5-
    to act, the EPA frequently files its own enforcement actions against suspected
    environmental violators even after the commencement of a state-initiated
    enforcement action. See Bryan S. Miller, Harmonizing RCRA’s Enforcement
    Provisions: RCRA Overfiling in Light of Harmon Industries v. Browner, 5
    Environmental Law. 585 (1999). The EPA’s process of duplicating enforcement
    actions is known as overfiling. See 
    id. The permissibility
    of overfiling apparently
    is a question of first impression in the federal circuit courts. See Harmon, 19 F.
    Supp.2d at 995. After examining this apparent issue of first impression, the district
    court concluded that the plain language of section 6926(b) dictates that the state
    program operate "in lieu" of the federal program and with the "same force and
    effect" as EPA action. Accordingly, the district court found that, in this case, the
    RCRA precludes the EPA from assessing its own penalty against Harmon. See 
    id. The EPA
    contends that the district court’s interpretation runs contrary to the
    plain language of the RCRA. Specifically, the EPA cites section 6928 of the
    RCRA, which states that:
    (1) Except as provided in paragraph (2), whenever on the basis
    of any information the [EPA] determines that any person has violated
    or is in violation of any requirement of this subchapter, the [EPA] may
    issue an order assessing a civil penalty for any past or current
    violation, requiring compliance immediately or within a specified time
    period, or both, or the [EPA] may commence a civil action in the
    United States district court in the district in which the violation
    occurred for appropriate relief, including a temporary or permanent
    injunction.
    (2) In the case of a violation of any requirement of [the RCRA]
    where such violation occurs in a State which is authorized to carry out
    a hazardous waste program under section 6926 of this title, the [EPA]
    shall give notice to the State in which such violation has occurred prior
    to issuing an order or commencing a civil action under this section.
    -6-
    42 U.S.C. § 6928(a)(1) and (2).
    The EPA argues that the plain language of section 6928 allows the federal
    agency to initiate an enforcement action against an environmental violator even in
    states that have received authorization pursuant to the RCRA. The EPA contends
    that Harmon and the district court misinterpreted the phrases “in lieu of” and "same
    force and effect" as contained in the RCRA. According to the EPA, the phrase “in
    lieu of” refers to which regulations are to be enforced in an authorized state rather
    than who is responsible for enforcing the regulations. The EPA argues that the
    phrase "same force and effect" refers only to the effect of state issued permits. The
    EPA contends that the RCRA, taken as a whole, authorizes either the state or the
    EPA to enforce the state’s regulations, which are in compliance with the regulations
    of the EPA. The only requirement, according to the EPA, is that the EPA notify the
    state in writing if it intends to initiate an enforcement action against an alleged
    violator.
    Both parties argue that the plain language of the RCRA supports their
    interpretation of the statute. We also are ever mindful of the long-established plain
    language rule of statutory interpretation, see Walker v. Dilworth, 2 U.S. (2 Dall.)
    257, 259 (1796), as we inquire into the scope of the EPA’s enforcement powers
    under the RCRA. Such an inquiry requires examining the text of the statute as a
    whole by considering its context, "object, and policy." Pelofsky v. Wallace, 
    102 F.3d 350
    , 353 (8th Cir. 1996).
    An examination of the statute as a whole supports the district court’s
    interpretation. The RCRA specifically allows states that have received
    authorization from the federal government to administer and enforce a program that
    operates “in lieu of” the EPA’s regulatory program. 42 U.S.C. § 6926(b). While the
    -7-
    EPA is correct that the “in lieu of” language refers to the program itself, the
    administration and enforcement of the program are inexorably intertwined.
    The RCRA gives authority to the states to create and implement their own
    hazardous waste program. The plain “in lieu of” language contained in the RCRA
    reveals a congressional intent for an authorized state program to supplant the
    federal hazardous waste program in all respects including enforcement.
    Congressional intent is evinced within the authorization language of section
    6926(b) of the RCRA. Specifically, the statute permits the EPA to repeal a state’s
    authorization if the state’s program “does not provide adequate enforcement of
    compliance with the requirements of” the RCRA. 
    Id. This language
    indicates that
    Congress intended to grant states the primary role of enforcing their own hazardous
    waste program. Such an indication is not undermined, as the EPA suggests, by the
    language of section 6928. Again, section 6928(a)(1) allows the EPA to initiate
    enforcement actions against suspected environmental violators, except as provided
    in section 6928(a)(2). Section 6928(a)(2) permits the EPA to enforce the hazardous
    waste laws contained in the RCRA if the agency gives written notice to the state.
    Section 6928(a)(1)and (2), however, must be interpreted within the context of the
    entire Act. Harmonizing the section 6928(a)(1) and (2) language that allows the
    EPA to bring an enforcement action in certain circumstances with section 6926(b)’s
    provision that the EPA has the right to withdraw state authorization if the state’s
    enforcement is inadequate manifests a congressional intent to give the EPA a
    secondary enforcement right in those cases where a state has been authorized to act
    that is triggered only after state authorization is rescinded or if the state fails to
    initiate an enforcement action. Rather than serving as an affirmative grant of
    federal enforcement power as the EPA suggests, we conclude that the notice
    requirement of section 6928(a)(2) reinforces the primacy of a state's enforcement
    rights under RCRA. Taken in the context of the statute as a whole, the notice
    requirement operates as a means to allow a state the first chance opportunity to
    -8-
    initiate the statutorily-permitted enforcement action. If the state fails to initiate any
    action, then the EPA may institute its own action. Thus, the notice requirement is
    an indicator of the fact that Congress intended to give states, that are authorized to
    act, the lead role in enforcement under RCRA.
    The "same force and effect" language of section 6926(d) provides additional
    support for the primacy of states' enforcement rights under the RCRA when the
    EPA has authorized a state to act in lieu of it. The EPA argues that the "same force
    and effect" language is limited to state permits because the words appear under a
    heading that reads: "Effect of State Permit." The EPA contends that the "same
    force and effect" language indicates only that state-issued permits will have the
    same force and effect as permits issued by the federal government. The EPA
    claims that the district court was incorrect when it applied the "same force and
    effect" language to encompass the statute's enforcement mechanism. We disagree.
    Regardless of the title or heading, the plain language of section 6926(d) states
    that "[a]ny action taken by a State under a hazardous waste program authorized
    under this section shall have the same force and effect as action taken by the [EPA]
    under this subchapter." 42 U.S.C. § 6926(d). In this context, the meaning of the
    text is plain and obvious. "Any action" under this provision broadly applies to any
    action authorized by the subchapter, and this language is not limited to the issuance
    of permits. The state authorization provision substitutes state action (not excluding
    enforcement action) for federal action. It would be incongruous to conclude that
    the RCRA authorizes states to implement and administer a hazardous waste
    program "in lieu of" the federal program where only the issuance of permits is
    accorded the same force and effect as an action taken by the federal government.
    Contrary to the EPA's assertions, the statute specifically provides that a "[s]tate is
    authorized to carry out [its hazardous waste program] in lieu of the Federal program
    . . . and to issue and enforce permits." 42 U.S.C. § 6926(b). Issuance and
    -9-
    enforcement are two of the functions authorized as part of the state's hazardous
    waste enforcement program under the RCRA. Nothing in the statute suggests that
    the "same force and effect" language is limited to the issuance of permits but not
    their enforcement. We believe that if Congress had intended such a peculiar result,
    it would have stated its preference in a clear and unambiguous manner. Absent
    such an unambiguous directive, we will apply a common sense meaning to the text
    of the statute and interpret its provisions in a manner logically consistent with the
    Act as whole. See Windsor on the River Assoc., Ltd. v. Balcor Real Estate Fin.,
    Inc., 
    7 F.3d 127
    , 130 (8th Cir. 1993) (requiring courts to give effect to all the words
    used by Congress); see also Minnesota Transp. Reg. Bd. v. United States, 
    966 F.2d 335
    , 339 (8th Cir. 1992) ("Section and subchapter titles cannot alter the plain
    meaning of a statute; they can only assist in clarifying ambiguity").
    Utilizing a sort of reverse plain language argument, the EPA contends that
    its approach is logically consistent with the framework of the RCRA. The EPA
    cites the statute's citizen suit provision for the proposition that limitations on a
    parties' right to act are expressly stated within the statute itself. See 42 U.S.C. §
    6972(b)(1)(B). Section 6972(b)(1)(B) provides that "if the [EPA] or State has
    commenced and is diligently prosecuting a civil or criminal action in a court of the
    United States or a State," then a private citizen suit is not permitted. 
    Id. The EPA
    argues that if Congress had intended to limit the EPA's right to file an enforcement
    action, it would have expressly stated its intention as it did in the citizen suit
    context. We find the EPA's argument unpersuasive. Section 6972(b)(1)(B) of the
    RCRA provides the parameters for private litigation. In the course of providing
    such parameters, Congress apparently found it necessary to delineate exactly when
    and how a private citizen may initiate a civil action against an alleged
    environmental violator. In contrast, section 6926 of the RCRA addresses the
    interplay between federal and state authorization. Section 6926 also contains
    express language that establishes the primacy of states' enforcement rights once the
    -10-
    EPA has granted a state authorization. The mere fact that Congress did not choose
    to employ the exact same language as contained in an unrelated part of the act does
    not detract from the plain language used in the state authorization section. Again,
    Congress provided that the state's program should operate in lieu of the federal
    program and that the state action should operate with the same force and effect as
    action taken by the EPA. See 42 U.S.C. § 6926(b) and (d). We find the language
    contained in the state authorization section of the Act to be as unambiguous as the
    citizen suit provision. In fact, we find it revealing that, under the citizen suit
    provision, Congress chose to forbid a private citizen from acting if the EPA or a
    state was diligently pursing a civil action. See 42 U.S.C. § 6972(b)(1)(B). Utilizing
    the same reverse plain language argument, one can assume that if Congress
    intended to allow the federal government and the states to initiate competing
    enforcement actions, it would have chosen the words "and/or" rather than simply
    "or." The word "or" indicates that Congress did not contemplate competing
    enforcement actions between the federal government and the states. Thus, when
    the EPA has authorized a state program, the plain language of the text indicates that
    primary enforcement powers are vested in the states. See 42 U.S.C. § 6926.
    Even assuming some ambiguity exists in the statutory language, the primacy
    of the states’ enforcement rights, once the EPA has authorized a state to act, is
    illustrated further through the RCRA’s legislative history. The United States House
    of Representatives stated after its hearings that, through the RCRA, it intended to
    vest primary enforcement authority in the states. See H. R. Rep. 1491, 94th Cong.,
    2nd Sess. 24, reprinted in 1976 U.S.C.C.A.N. 6262 ("It is the Committee's intention
    that the States are to have primary enforcement authority and if at any time a State
    wishes to take over the hazardous waste program it is permitted to do so, provided
    that the State laws meet the Federal minimum requirements for both administering
    and enforcing the law"). The House Report states that although the “legislation
    -11-
    permits the states to take the lead in the enforcement of the hazardous wastes [sic]
    laws[,] . . . the Administrator [of the EPA] is not prohibited from acting in those
    cases where the state fails to act, or from withdrawing approval of the state
    hazardous waste plan and implementing the federal hazardous waste program
    pursuant to . . . this act.” 1976 U.S.C.C.A.N. 6269. The House Report also states
    that the EPA, “after giving the appropriate notice to a state that is authorized to
    implement the state hazardous waste program, that violations of this Act are
    occurring and the state [is] failing to take action against such violations, is
    authorized to take appropriate action against those persons in such state not in
    compliance with the hazardous waste title.” 
    Id. at 6270.
    The House Report thus
    supports our interpretation of the statute - that the federal government’s right to
    pursue an enforcement action under the RCRA attaches only when a state’s
    authorization is revoked or when a state fails to initiate any enforcement action.
    There is no support either in the text of the statute or the legislative history
    for the proposition that the EPA is allowed to duplicate a state’s enforcement
    authority with its own enforcement action. The EPA argues that the statute and
    legislative history support its contention that it may initiate an enforcement action
    if it deems the state’s enforcement action inadequate. The EPA’s argument misses
    the point. Without question, the EPA can initiate an enforcement action if it deems
    the state’s enforcement action inadequate. Before initiating such an action,
    however, the EPA must allow the state an opportunity to correct its deficiency and
    the EPA must withdraw its authorization. See 42 U.S.C. § 6926(b) and (e).
    Consistent with the text of the statute and its legislative history, the EPA also may
    initiate an enforcement action after providing written notice to the state when the
    authorized state fails to initiate any enforcement action. See 42 U.S.C. §
    6928(a)(2);1976 U.S.C.C.A.N. 6270. The EPA may not, however, simply fill the
    perceived gaps it sees in a state’s enforcement action by initiating a second
    -12-
    enforcement action without allowing the state an opportunity to correct the
    deficiency and then withdrawing the state’s authorization.4
    A contrary interpretation would result in two separate enforcement actions.
    Such an interpretation, as explained above, would derogate the RCRA’s plain
    language and legislative history. Companies that reach an agreement through
    negotiations with a state authorized by the EPA to act in its place may find the
    agreement undermined by a later separate enforcement action by the EPA. While,
    generally speaking, two separate sovereigns can institute two separate enforcement
    actions, those actions can cause vastly different and potentially contradictory
    results. Such a potential schism runs afoul of the principles of comity and
    federalism so clearly embedded in the text and history of the RCRA. When
    enacting the RCRA, Congress intended to delegate the primary enforcement of
    EPA-approved hazardous waste programs to the states. See 1976 U.S.C.C.A.N.
    6262, 6270. In fact, as we have noted above, the states' enforcement action has the
    “same force and effect as an action taken by” the EPA. See 42 U.S.C. § 6926(d).
    In EPA authorized states, the EPA’s action is an alternative method of enforcement
    that is permitted to operate only when certain conditions are satisfied. See 42
    U.S.C. § 6926(b) and (e); 42 U.S.C. § 6928(b). The EPA’s interpretation simply
    is not consistent with the plain language of the statute, its legislative history, or its
    declared purpose. Hence, it is also an unreasonable interpretation to which we
    accord no deference. Therefore, we find that the EPA's practice of overfiling, in
    those states where it has authorized the state to act, oversteps the federal agency's
    authority under the RCRA.
    4
    The EPA cites Wyckoff Co. v. EPA, 
    796 F.2d 1197
    (9th Cir. 1986), for the
    proposition that federal enforcement is not prohibited even in states authorized under
    the RCRA. Wyckoff, however, is more illustrative of the EPA’s authority to act in
    place of a state enforcement action. Wyckoff did not involve overfiling and competing
    enforcement actions.
    -13-
    B. Res Judicata
    As an alternative basis to support its grant of summary judgment, the district
    court concluded that principles of res judicata also bar the EPA's enforcement
    action by reason of the Missouri state court consent decree. The EPA argues that
    the state court judgment has no effect on its enforcement action against Harmon
    because the two actions lack the elements essential for a finding of res judicata.
    We review de novo a district court's summary judgment determinations. See JN
    Exploration & Prod. v. Western Gas Resources, 
    153 F.3d 906
    , 909 (8th Cir.1998).
    Principles of res judicata embodied in the Full Faith and Credit Act, 28
    U.S.C. § 1738 (1982), see also U.S. Const. art. 4, § 1, require federal courts to give
    preclusive effect to the judgments of state courts whenever the state court from
    which the judgment emerged would give such an effect. See Hickman v. Electronic
    Keyboarding, Inc., 
    741 F.3d 230
    , 232 (8th Cir. 1984). In this case, we must
    determine whether Missouri law would give res judicata effect to the consent
    decree entered between Harmon and the MDNR in Missouri state court.
    In Missouri, res judicata requires "(1) [i]dentity of the thing sued for; (2)
    identity of the cause of action; (3) identity of the persons and parties to the
    action; and (4) identity of the quality of the person for or against whom the
    claim is made." Prentzler v. Schneider, 
    411 S.W.2d 135
    , 138 (Mo. 1966) (en
    banc).
    In this case, the four Missouri law res judicata requirements are satisfied.
    In both the state court action and the EPA administrative enforcement action,
    the parties sought to enforce a hazardous waste program pursuant to the RCRA.
    In both the state action and the agency action, the complaints named Harmon
    -14-
    as the defendant. In addition, both actions involved the enforcement of
    regulations based upon identical facts and legal principles. The only dispute
    is whether the parties are identical.
    A party is identical when it is the same party that litigated a prior suit or
    when a new party is in privity with a party that litigated a prior suit. See
    United States v. Gurley, 
    43 F.3d 1188
    , 1197 (8th Cir. 1994), cert. denied, 
    516 U.S. 817
    (1995). Privity exists when two parties to two separate suits have "a
    close relationship bordering on near identity." 
    Id. (internal quotations
    omitted);
    see also 
    Hickman, 741 F.2d at 233
    . As the United States and the State of
    Missouri are not the same party, we must resolve whether their relationship in
    the enforcement action is nearly identical.
    The statutory language of the RCRA provides the framework for the party
    identity analysis. Pursuant to 42 U.S.C. § 6926(b), the federal program
    operates “in lieu of” the state program. Section 6926(d) of the same statute
    mandates that “[a]ny action taken by a State under a hazardous waste program
    authorized under this section shall have the same force and effect as action taken
    by the [EPA] under this subchapter.” 42 U.S.C. § 6926(d). As we determined in
    Part II(A) of this opinion, the plain language of the RCRA permits the State of
    Missouri to act in lieu of the EPA. When such a situation occurs, Missouri’s action
    has the same force and effect as an action initiated by the EPA. Accordingly, the
    two parties stand in the same relationship to one another. The EPA argues that it
    has enforcement interests sufficiently distinct from the interests of the State of
    Missouri. We explained in Hickman, however, that privity under Missouri law is
    satisfied when the two parties represent the same legal right. See 
    Hickman, 741 F.2d at 233
    . As the district court correctly indicated, privity is not dependent upon
    the subjective interests of the individual parties. See 
    Harmon, 19 F. Supp. 2d at 998
    ;
    -15-
    see also 
    Hickman, 741 F.2d at 233
    . In this case, the State of Missouri advanced the
    exact same legal right under the statute as the EPA did in its administrative action.
    Accordingly, the identity of the parties requirement is satisfied.
    The EPA contends that even if principles of res judicata are satisfied under
    Missouri law, the doctrine of sovereign immunity precludes applying res judicata
    to the United States unless the United States was the actual party in the prior
    lawsuit. Before addressing the merits of the EPA’s claim, we note that the EPA did
    not raise the sovereign immunity defense before the district court. Harmon argues
    that in failing to raise the issue at the district court level, the EPA has waived its
    right to assert sovereign immunity on appeal. Sovereign immunity, however, is a
    jurisdictional threshold matter and it is well-established that questions of subject
    matter jurisdiction can be raised for the first time on appeal. See DeWitt Bank &
    Trust Co. v. United States, 
    878 F.2d 246
    (8th Cir. 1989), cert. denied, 
    494 U.S. 1016
    (1990).
    Turning to the merits of the EPA’s sovereign immunity defense, we conclude
    that the defense is forestalled by the United States Supreme Court’s decision in
    Montana v. United States, 
    440 U.S. 147
    (1979). In Montana, the Supreme Court
    held that “one who prosecutes or defends a suit in the name of another to establish
    and protect his own right is as much bound as he would be if he had been a party
    to the 
    record.” 440 U.S. at 154
    (internal quotations and alterations omitted). The
    Court found in Montana that although the United States was not a party to a prior
    suit, it "had a sufficient laboring oar in the conduct of the state-court litigation to
    actuate principles of estoppel." 
    Id. at 155.5
    The EPA argues that it had no laboring
    5
    Montana involved principles of collateral estoppel as opposed to res 
    judicata. 440 U.S. at 154
    . We do not believe such a distinction is relevant in the context of this
    case.
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    oar in the State of Missouri’s enforcement action. Such an argument ignores the
    RCRA. Unlike the present case, Montana did not involve a statute that authorized
    the state to proceed “in lieu of” the federal government and “with the same force
    and effect” as the federal government. In Montana, the United States controlled the
    details of the prior suit directly. In RCRA cases, however, the federal government
    authorizes the state to act in its place. It cedes its authority to the state pursuant to
    the authorization plan contained in the statute. See 42 U.S.C. § 6926(b). The
    “laboring oar” is pulled on much earlier in the process. It occurs at the
    authorization stage when the EPA grants the state permission to enforce the EPA's
    interests through the state's own hazardous waste program. After authorization, the
    state “prosecutes” enforcement actions “in lieu of” the federal government and
    operates as if it were the EPA. See 42 U.S.C. § 6926(b) and (d). Hence, pursuant
    to Montana, the United States must be bound by prior judgments involving state
    action as authorized by the RCRA. See also United States v. County of Cook,
    Illinois, 
    167 F.3d 381
    , 389 (7th Cir. 1999) (questioning when sovereign immunity
    to claim preclusion exists); United States v. ITT Rayonier, Inc., 
    627 F.2d 996
    , 1002
    (9th Cir. 1980) (applying res judicata against the EPA). Accordingly, we find that
    principles of res judicata as defined by Missouri law foreclose the EPA's
    enforcement action against Harmon.
    C. The Statute of Limitations Defense
    Harmon argues that the EPA’s enforcement claim is barred by a five-year
    statute of limitations. See 28 U.S.C. § 2462. The district court found that the
    statute of limitations did not affect this action. Although our decision in this case
    precludes our need to address this issue and Harmon did not file a cross-appeal, we
    note that Harmon's statute of limitations claim entirely lacks merit. Harmon
    continuously polluted from 1973 to 1987. The EPA initiated its enforcement action
    in 1991. Hence, the EPA’s action fell within the five-year statute of limitations.
    -17-
    See Cornerstone Realty, Inc. v. Dresser Rand. Co., 
    993 F. Supp. 107
    , 114-15 (D.
    Conn. 1998). Accordingly, Harmon’s statute of limitations argument fails.
    III.
    CONCLUSION
    For the reasons stated herein, we affirm the judgment of the district court.
    A true copy.
    Attest:
    CLERK, U.S. COURT OF APPEALS, EIGHTH CIRCUIT.
    -18-