United States v. Manning ( 2008 )


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  •                    FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    UNITED STATES OF AMERICA,                
    Plaintiff-Appellee,
    v.
    JAY MANNING, in his official
    capacity as Director of the
    Washington Department of
    Ecology; WASHINGTON
    DEPARTMENT OF ECOLOGY; STATE OF
    WASHINGTON,
    Defendants-Appellants,
    No. 06-35613
    and
           D.C. No.
    YES ON I-297: PROTECT                        CV-04-05128-AAM
    WASHINGTON; BOB APPLE;
    WASHINGTON PUBLIC INTEREST
    RESEARCH GROUP; ADAM KLINE;
    TOBY NIXON; HEART OF AMERICA
    NORTHWEST,
    Defendant-Intervenors,
    v.
    FLUOR HANFORD INC.; TRI-CITY
    INDUSTRIAL DEVELOPMENT COUNCIL,
    Plaintiff-Intervenors-Appellees.
    
    5881
    5882               UNITED STATES v. MANNING
    UNITED STATES OF AMERICA,                
    Plaintiff-Appellee,
    v.
    JAY MANNING, in his official
    capacity as Director of the
    Washington Department of
    Ecology; WASHINGTON
    DEPARTMENT OF ECOLOGY; STATE OF
    WASHINGTON,
    Defendants,
    and                           No. 06-35664
    YES ON I-297: PROTECT                           D.C. No.
    WASHINGTON; BOB APPLE;                       CV-04-05128-AAM
    WASHINGTON PUBLIC INTEREST
    RESEARCH GROUP; ADAM KLINE;
    TOBY NIXON; HEART OF AMERICA
    NORTHWEST,
    Defendant-Intervenors-
    Appellants,
    v.
    FLUOR HANFORD INC.; TRI-CITY
    INDUSTRIAL DEVELOPMENT COUNCIL,
    Plaintiff-Intervenors-Appellees.
    
    UNITED STATES v. MANNING             5883
    UNITED STATES OF AMERICA,                
    Plaintiff-Appellee,
    v.
    JAY MANNING, in his official
    capacity as Director of the
    Washington Department of
    Ecology; WASHINGTON
    DEPARTMENT OF ECOLOGY; STATE OF
    WASHINGTON,
    Defendants-Appellees,
    and
    No. 06-35765
    YES ON I-297: PROTECT
    WASHINGTON; BOB APPLE;                          D.C. No.
    CV-04-05128-AAM
    WASHINGTON PUBLIC INTEREST
    RESEARCH GROUP; ADAM KLINE;                      OPINION
    TOBY NIXON; HEART OF AMERICA
    NORTHWEST,
    Defendant-Intervenors,
    v.
    FLUOR HANFORD INC.,
    Plaintiff-intervenor,
    and
    TRI-CITY INDUSTRIAL DEVELOPMENT
    COUNCIL,
    Plaintiff-Intervenor-Appellant.
    
    Appeals from the United States District Court
    for the Eastern District of Washington
    Alan A. McDonald, District Judge, Presiding
    Argued and Submitted
    December 3, 2007—Seattle, Washington
    5884                UNITED STATES v. MANNING
    Filed May 21, 2008
    Before: M. Margaret McKeown and Richard R. Clifton,
    Circuit Judges, and William W Schwarzer,* District Judge.
    Opinion by Judge McKeown
    *The Honorable William W Schwarzer, Senior United States District
    Judge for the Northern District of California, sitting by designation.
    5886             UNITED STATES v. MANNING
    COUNSEL
    Andrew A. Fitz, Assistant Attorney General (argued); Laura
    J. Watson, Assistant Attorney General; and James R.
    Schwartz, Assistant Attorney General; Olympia, Washington,
    for the defendants-appellants, cross-appellees.
    Michael Jay Robinson-Dorn (argued), Katy Anne King, Ian
    Jeremy Mensher, and Joseph Shaughnessy, Seattle, Washing-
    ton, for the intervenor-appellants.
    John A. Bryson, Assistant United States Attorney (argued);
    Matthew J. McKeown, Acting Assistant Attorney General;
    Cynthia J. Morris, Assistant United States Attorney; Kenneth
    UNITED STATES v. MANNING                       5887
    C. Amaditz, Assistant United States Attorney; and David
    Kaplan, Assistant United States Attorney; Washington, DC,
    for the plaintiff-appellee.
    Colin C. Deihl (argued) and Kristen S. Carney, Faegre &
    Benson LLP, Denver, Colorado, for the intervenor-appellee
    Fluor Hanford, Inc.
    Matthew J. Segal (argued), Stephen A. Smith, and Michael K.
    Ryan, Kirkpatrick & Lockhart Preston Gates Ellis LLP, Seat-
    tle, Washington, for the intervenor-appellee, cross-appellant
    Tri-City Industrial Development Council.
    OPINION
    McKEOWN, Circuit Judge:
    The Hanford Nuclear Reservation (“Hanford”) in Washing-
    ton is one of the largest sites in the country for the treatment,
    storage and disposal of radioactive and non-radioactive haz-
    ardous waste, currently storing over 53 million gallons of
    mixed radioactive and nonradioactive hazardous waste. Dur-
    ing World War II, the United States government constructed
    Hanford to manufacture plutonium for military purposes. In
    re Hanford Nuclear Reservation Litig., ___ F.3d ___, 
    2008 WL 901809
    , *4 (9th Cir. Apr. 4, 2008) (as amended).1 Over
    the decades, the United States Department of Energy
    (“DOE”) has disposed of approximately 450 billion gallons of
    contaminated water and liquid mixed waste on the site. At
    least one million gallons of high-level mixed radioactive and
    non-radioactive hazardous waste have leaked into the envi-
    ronment and approximately 170 miles of groundwater beneath
    Hanford are contaminated. In addition, tens of millions of gal-
    1
    For almost twenty years there has been litigation over whether radioio-
    dine from Hanford caused various cancers and life-threatening diseases in
    residents of the surrounding area.
    5888                 UNITED STATES v. MANNING
    lons of waste are stored at Hanford in tanks that were con-
    structed in the 1940s and meant to last only twenty years. As
    of 2004, there was a backlog of over 22,000 cubic meters of
    low-level mixed waste and transuranic mixed waste awaiting
    treatment and disposal.
    In 1989, Washington’s Department of Ecology
    (“Ecology”), the DOE, and the United States Environmental
    Protection Agency (“EPA”) entered into the Hanford Federal
    Facility Agreement and Consent Order, also known as the Tri-
    Party Agreement, to bring Hanford into compliance with fed-
    eral and state environmental laws. However, according to
    Ecology, since signing the agreement, the DOE and its con-
    tractors have been cited numerous times for violations of fed-
    eral and state hazardous and mixed waste laws and
    requirements.
    The present appeal arises out of an effort by Washington
    voters “to prevent the addition of new radioactive and hazard-
    ous waste to the Hanford nuclear reservation until the cleanup
    of existing contamination is complete.” United States v. Hoff-
    man, 
    116 P.3d 999
    , 1001 (Wash. 2005). Although the desire
    to take action against further environmental contamination
    and to protect the health and welfare of the community is
    understandable, we conclude that the statute enacted through
    the passage of Initiative 297 (“I-297”), the Cleanup Priority
    Act (“CPA”), is preempted by federal law. This result is dic-
    tated by a plain reading of the Washington statute, as inter-
    preted by the Washington Supreme Court, as well as long-
    standing principles of federal preemption.
    I.    BACKGROUND
    A.   GLOSSARY
    The field of environmental law has spawned multiple acro-
    nyms. Many of these acronyms are well recognized, like EPA,
    UNITED STATES v. MANNING             5889
    while others, like HWMA, are not. For ease of reference, we
    offer the following glossary of terms:
    AEA        Atomic Energy Act of 
    42 U.S.C. §§ 2011-2259
    1954
    CERCLA     Comprehensive           
    42 U.S.C. §§ 9601-9675
    Environmental
    Response,
    Compensation, and
    Liability Act of 1980
    CPA        Cleanup Priority Act    RCW Chapter 70.105E
    DOE        United States
    Department of Energy
    EPA        United States
    Environmental
    Protection
    Ecology    WashingtonAgency
    State
    Department of Ecology
    FFCA       Federal Facility        Pub. L. No. 102-386,
    Compliance Act of       
    106 Stat. 1505
     (codified
    1992                    in scattered sections of
    42 U.S.C.)
    HWMA       Hazardous Waste         RCW Chapter 70.105
    Management Act
    MTCA       Model Toxics Control RCW Chapter 70.105D
    Act
    RCRA       Resource Conservation 
    42 U.S.C. §§ 6901
    -
    and Recovery Act of 6992k
    1976
    5890                 UNITED STATES v. MANNING
    B.    STATUTORY FRAMEWORK             FOR    HAZARDOUS WASTE
    MANAGEMENT
    Hazardous waste is regulated at both the federal and state
    levels. The Resource Conservation and Recovery Act
    (“RCRA”), 
    42 U.S.C. §§ 6901
    -6992k, enacted in 1976 in
    response to the environmental and public health risks associ-
    ated with the mismanagement of hazardous waste, created a
    permit scheme for the treatment, disposal, or storage of haz-
    ardous waste. See 
    id.
     § 6925(a); United States v. Kentucky,
    
    252 F.3d 816
    , 822 (6th Cir. 2001). Under the RCRA, states
    may apply to the EPA for authorization to administer a haz-
    ardous waste program in lieu of the federal program. 
    42 U.S.C. § 6926
    (b). Washington is authorized to administer its
    own program, and does so through the Hazardous Waste
    Management Act (“HWMA”), RCW 70.105.
    Despite federal cleanup efforts, hazardous waste contami-
    nation continued to be a problem. Ecology claims that federal
    facilities, including Hanford, were among the worst offenders.
    In 1992, Congress enacted the Federal Facilities Compliance
    Act (“FFCA”) to make it “as clear as humanly possible” that
    Congress was waiving federal sovereign immunity and mak-
    ing federal facilities subject to state laws. 138 Cong. Rec.
    H9135-02 (daily ed. Sept. 23, 1992) (statement of Rep. Din-
    gell); see 
    42 U.S.C. § 6961
    . This act also added a provision
    to the RCRA that requires the DOE to submit its treatment
    plans for mixed waste to the states for approval, modification,
    or disapproval. 42 U.S.C. § 6939c.
    Disposal of nuclear and radioactive materials falls into a
    special category and is separately regulated by the federal
    government. Thus, “solid waste” regulated by the RCRA does
    not include “source, special nuclear, or byproduct material as
    defined by the Atomic Energy Act of 1954.”2 42 U.S.C.
    2
    “Source material” includes uranium, thorium, and other materials that
    the Nuclear Regulatory Commission deems necessary for the production
    UNITED STATES v. MANNING                        5891
    § 6903(27). “The [Atomic Energy Act, (“AEA”), 
    42 U.S.C. §§ 2011
     2259] enacted in 1954, established a comprehensive
    regulatory scheme for military and domestic nuclear energy.”
    Natural Res. Def. Council v. Abraham, 
    388 F.3d 701
    , 704 (9th
    Cir. 2004). Amendments to the AEA in 1959 gave states some
    regulatory authority, but the Atomic Energy Commission,
    now the Nuclear Regulatory Commission, “retain[ed] exclu-
    sive regulatory authority over ‘the disposal of such . . . bypro-
    duct, source, or special nuclear material as the Commission
    determines . . . should, because of the hazards or potential
    hazards thereof, not be disposed of without a license from the
    Commission.’ ”3 Silkwood v. Kerr-McGee Corp., 
    464 U.S. 238
    , 250 (1984) (quoting 
    42 U.S.C. § 2021
    (c)(4)).
    Radioactive waste that is subject to regulation under the
    AEA frequently may be mixed with non-radioactive waste
    that is regulated by the RCRA. No separate federal statute
    regulates this “mixed waste.”4 See Kentucky, 
    252 F.3d at 822
    .
    However, the DOE and the EPA have issued rules stating that
    mixed waste will be subject to dual regulation: the AEA will
    of special nuclear material. 
    42 U.S.C. § 2014
    (z). “Special nuclear materi-
    als” are those materials, such as plutonium and enriched uranium, that are
    “enriched in the isotope 233 or in the isotope 235.” 
    Id.
     § 2014(aa). “By-
    product material” includes “(1) any radioactive material (except special
    nuclear material) yielded in or made radioactive by exposure to the radia-
    tion incident to the process of producing or utilizing special nuclear mate-
    rial, and (2) the tailings or wastes produced by the extraction or
    concentration of uranium or thorium from any ore processed primarily for
    its source material content.” Id. §§ 2014(e)(1), (2).
    3
    Source material, special nuclear material, and byproduct material are
    often referred to as “AEA materials.”
    4
    The State suggests that the RCRA and the FFCA give states the author-
    ity to regulate the radioactive component of mixed waste. Neither federal
    statute explicitly allows states to engage in broad regulation of the radio-
    active component of mixed waste. The FFCA gives states a limited role
    in mixed waste management by directing the DOE to submit plans regard-
    ing mixed waste to states for approval, modification, or disapproval. 42
    U.S.C. § 6939c; see also H.R. Conf. Rep. No. 102-866, at 22 (1992). Con-
    gress stopped short, though, of giving states broader regulatory authority.
    5892               UNITED STATES v. MANNING
    govern the radioactive component and the RCRA or compara-
    ble state legislation will govern the non-radioactive compo-
    nent. See, e.g., 
    51 Fed. Reg. 24,504
     (July 7, 1986); 
    52 Fed. Reg. 15,937
     (May 1, 1987); 
    53 Fed. Reg. 37,045
     (Sept. 23,
    1988). This dual regulatory structure is the source of the con-
    flict engendered by the CPA.
    C.   THE CLEANUP PRIORITY ACT
    The ballot description of I-297 declared that “[t]his mea-
    sure would add new provisions concerning ‘mixed’ radioac-
    tive and nonradioactive hazardous waste, requiring cleanup of
    contamination before additional waste is added, prioritizing
    cleanup, [and] providing for public participation and enforce-
    ment through citizen lawsuits.” Thus, the CPA “became part
    of a complex state and federal system for regulating materials
    that are variously described as hazardous, dangerous, radioac-
    tive, or having some combination of these attributes.” Hoff-
    man, 116 P.3d at 1001. Counsel explained at oral argument
    that the CPA, passed by Washington voters in November
    2004, was meant to eliminate Ecology’s discretion in issuing
    permits under the RCRA and the HWMA and in taking action
    regarding investigation and cleanup.
    Toward those ends, § 4 of I-297 provides that a final facil-
    ity permit cannot issue until all units of a facility are in com-
    pliance with federal and state cleanup laws. Significantly, a
    facility cannot import mixed waste until it obtains a final
    facility permit. Section 5 requires that Ecology take remedial
    and corrective action against releases of radionuclides into the
    environment. Section 6 contains mandates to Ecology regard-
    ing the investigation and cleanup of hazardous substances that
    have been disposed of in unlined trenches, and the closure of
    mixed waste tank systems. Section 7 requires Ecology to
    obtain from mixed waste facility owners the projected costs
    of remedial and corrective actions. Section 8 grants exemp-
    tions from the CPA’s requirements for certain naval waste, in
    accordance with the State’s obligations under the Northwest
    UNITED STATES v. MANNING                       5893
    Interstate Compact. Section 9 requires facilities where there
    has been a release of mixed waste to provide for and fund a
    broadly representative advisory board, and directs Ecology to
    make available public participation grants that will be funded
    by a mixed waste surcharge assessed against permit applicants
    and permit holders. Finally, under § 10, the CPA is enforce-
    able through citizen suits.
    The United States sought and obtained a temporary
    restraining order in federal district court against the enforce-
    ment of the CPA the day before its effective date, Decem-
    ber 2, 2004.5 Various sponsors of I-297 intervened as
    defendants (“Sponsors”). The United States argued that the
    CPA was invalid in its entirety because it violated the
    Supremacy Clause and the Commerce Clause of the United
    States Constitution, and the sovereign immunity of the United
    States. Fluor Hanford (“Fluor”), a private contractor operating
    at Hanford, intervened as a plaintiff. The Tri-City Industrial
    Development Council (“TRIDEC”), a not-for-profit corpora-
    tion that represents local businesses and public entities in the
    area around Hanford, also intervened as a plaintiff and
    asserted that the CPA violated the Contract Clause.
    D.    QUESTIONS CERTIFIED          TO    THE    WASHINGTON STATE
    SUPREME COURT
    The United States and Fluor filed for summary judgment
    and TRIDEC filed for partial summary judgment. In opposing
    the United States’ motion, the State argued that many of the
    claims could be narrowed or eliminated through statutory
    interpretation. See Hoffman, 116 P.3d at 1001. The parties
    agreed that if the CPA covered only material that could be
    regulated under state law or the RCRA, then the statute was
    not preempted by federal law. The district court granted the
    State’s motion to certify five questions to the Washington
    5
    Ultimately, the parties agreed to extend the temporary order until the
    district court ruled on a motion for summary judgment.
    5894              UNITED STATES v. MANNING
    Supreme Court, including the following question and its sub-
    parts that are directly relevant to this appeal:
    (1) What materials are encompassed within the
    definition of “mixed waste” set forth in Section 3(9)
    of the CPA [RCW 70.105E.030(9)]?
    (a) Specifically, does the definition of “mixed
    waste” encompass materials that consist solely of
    radioactive source, special nuclear, or byproduct
    materials and, if so, under what circumstances does
    the CPA apply to such materials?
    (b) Specifically, does the definition of “mixed
    waste” encompass materials that are mixtures of
    radioactive source, special nuclear, or byproduct
    materials and other hazardous substances that do
    no[t] designate as “dangerous waste” under state
    laws? If so, under what circumstances does the CPA
    apply to such materials?
    (c) Specifically, does the definition of “mixed
    waste” encompass materials that are not “solid
    wastes” under the Resource Conservation and
    Recovery Act (RCRA) and, if so, under what cir-
    cumstances does the CPA apply to such materials?
    (d) In light of the Court’s answers to subparts (a)
    through (c), above, does the definition of “mixed
    waste” expand the scope of materials regulated as
    mixed waste under the Washington Hazardous
    Waste Management Act (HWMA) and RCRA?
    Id. at 1001-02.
    The Washington Supreme Court accepted certification and,
    among others, answered Question 1. The court began its anal-
    ysis by tracing the definition of “mixed waste,” as used in the
    UNITED STATES v. MANNING                        5895
    CPA, through its cross-references to other federal and state
    statutes. See id. at 1003-04. Under the CPA, “mixed waste”
    is defined as:
    [A]ny hazardous substance or dangerous or
    extremely hazardous waste that contains both a non-
    radioactive hazardous component and a radioactive
    component, including any such substances that have
    been released to the environment, or pose a threat of
    future release, in a manner that may expose persons
    or the environment to either the nonradioactive or
    radioactive hazardous substances.
    RCW 70.105E.030(9). The court observed that the CPA’s
    definition of “mixed waste” incorporated the term “hazardous
    substance,” which is, in turn, defined as having “the same
    meaning as the term is defined in [the Model Toxics Control
    Act (“MTCA”), RCW 70.105D.020].”6 Hoffman, 116 P.3d at
    1003. The MTCA is “ ‘designed to deal both with the
    remediation of former environmental hazards and to prevent
    6
    Under the MTCA, “hazardous substance” is defined as:
    (a) Any dangerous or extremely hazardous waste as defined in
    RCW 70.105.010(5) and (6), or any dangerous or extremely dan-
    gerous waste designated by rule pursuant to chapter 70.105
    RCW;
    (b) Any hazardous substance as defined in RCW 70.105.010(14)
    or any hazardous substance as defined by rule pursuant to chapter
    70.105 RCW;
    (c) Any substance that, on March 1, 1989, is a hazardous sub-
    stance under section 101(14) of the federal cleanup law, 42
    U.S.C. Sec. 9601(14):
    (d) Petroleum or petroleum products; and
    (e) Any substance or category of substances, including solid
    waste decomposition products, determined by the director by rule
    to present a threat to human health or the environment if released
    into the environment.
    RCW 70.105D.020(10).
    5896                   UNITED STATES v. MANNING
    environmental hazards in the future,’ ” and makes a property
    owner “ ‘strictly liable for the remediation of environmental
    hazards caused by hazardous substances it released [or were
    released] on its property.’ ” Goodstein v. Cont’l Cas. Co., 
    509 F.3d 1042
    , 1046 n.2 (9th Cir. 2007) (quoting Olds-Olympic,
    Inc. v. Commercial Union Ins. Co., 
    918 P.2d 923
    , 927 (Wash.
    1996)). The MTCA’s definition of “hazardous substance,” in
    turn, cross-references the definition of “hazardous substance”
    in the HWMA, RCW 70.105D.020(7)(b).7 Hoffman, 116 P.3d
    at 1003.
    As to Question 1(a), the parties agreed that the CPA does
    not address materials that are solely “of radioactive source,
    special nuclear, or byproduct materials.” Id. In response to
    Question 1(b), the court concluded that the CPA’s definition
    of “mixed waste” includes material that does not designate as
    “dangerous waste” under the MTCA and the HWMA. Id. at
    1005. Waste must meet certain threshold quantity require-
    ments of certain materials before it will designate as “danger-
    ous waste,” id. at 1004; WAC 173-303-090(8)(a)-(c), but a
    “hazardous substance,” as defined by the HWMA, has no
    threshold requirement. Hoffman, 116 P.3d at 1004; RCW
    70.105.010(14). Because the HWMA’s definition of “hazard-
    ous substance” is incorporated into the CPA’s definition of
    “mixed waste,” “mixed waste” can include materials that will
    not designate as “dangerous waste” because those materials
    do not meet the threshold quantity requirement.
    With respect to Question 1(c), the court concluded that the
    CPA’s definition of “mixed waste” included materials that
    were not “solid waste” under the RCRA. Hoffman, 
    116 P.3d 7
    Under the HWMA, “hazardous substances” are defined as:
    [A]ny liquid, solid, gas, or sludge, including any material, sub-
    stance, product, commodity, or waste, regardless of quantity, that
    exhibits any of the characteristics or criteria of hazardous waste
    as described in rules adopted under this chapter.
    RCW 70.105.010(14).
    UNITED STATES v. MANNING                  5897
    at 1006. In light of its analysis of questions 1(a)-(c), the
    Washington Supreme Court held that “the CPA does expand
    the scope of materials currently subject to regulation as mixed
    waste beyond the HWMA and the RCRA.” Id. at 1006
    (responding to Question 1(d)).
    E.    THE DISTRICT COURT’S DECISION
    The district court addressed the motion for summary judg-
    ment in a careful and extensive (sixty-page) order. Relying on
    the Washington Supreme Court’s conclusions that the CPA’s
    definition of “mixed waste” includes materials that do not
    designate as “dangerous waste” and materials that are not
    “solid waste” under the RCRA, the district court held that the
    CPA was preempted by federal law because it improperly
    intruded on the field governed by the AEA by regulating
    byproduct, source, or special nuclear material. The court fur-
    ther held that specific provisions of the statute violated federal
    sovereign immunity and the Commerce Clause. In addition,
    the court granted TRIDEC’s motion for partial summary judg-
    ment and held that the CPA also violated the Contract Clause.
    The court denied TRIDEC’s motion for attorney’s fees under
    
    42 U.S.C. § 1988
    , which is the subject of its cross-appeal. We
    review de novo the district court’s rulings on summary judg-
    ment. Buono v. Norton, 
    371 F.3d 543
    , 545 (9th Cir. 2004).
    II.    ANALYSIS
    Generally speaking, “mixed waste” is waste that has both
    a nonradioactive hazardous component and a radioactive
    component. Unquestionably, the State has the authority to
    regulate nonradioactive hazardous materials, and does so pri-
    marily through the RCRA and the HWMA. The parties also
    agree that the regulation of pure radionuclides is governed by
    the AEA. The question we address here is whether the regula-
    tion of the radioactive component of mixed waste is pre-
    empted by the AEA.
    5898               UNITED STATES v. MANNING
    A.   FIELD PREEMPTION
    [1] As the Supreme Court observed, state law can be pre-
    empted in either of two general ways: if “Congress evidences
    an intent to occupy a given field,” or, if the field has not been
    occupied entirely, “to the extent it actually conflicts with fed-
    eral law . . . or where the state law stands as an obstacle to
    the accomplishment of the full purposes and objectives of
    Congress.” Silkwood, 
    464 U.S. at 248
    . In a landmark case
    involving nuclear regulation, the Court declared that “the fed-
    eral government has occupied the entire field of nuclear safety
    concerns, except the limited powers expressly ceded to the
    states.” Pac. Gas & Elec. Co. v. State Energy Res. Conserva-
    tion & Dev. Comm’n, 
    461 U.S. 190
    , 212 (1983). To determine
    whether the CPA is preempted by the AEA, “the test . . . is
    whether ‘the matter on which the state asserts the right to act
    is in any way regulated by the federal government.’ ” 
    Id. at 213
     (quoting Rice v. Santa Fe Elevator Corp., 
    331 U.S. 218
    ,
    236 (1947)). The AEA preempts the CPA if (1) the purpose
    of the CPA is to regulate against radiation hazards, or (2) if
    the CPA directly affects decisions concerning radiological
    safety. See English v. Gen. Elec. Co., 
    496 U.S. 72
    , 84 (1990).
    We hold that the CPA is preempted on both grounds.
    The district court concluded that the CPA intruded into the
    AEA field because its purpose was to regulate the safety of
    radionuclides. Relying on the Washington Supreme Court’s
    analysis, it held that “[t]he CPA exceeds RCRA authority and,
    as such, intrudes upon a field (regulation of AEA radionu-
    clides for radiological safety purposes), which is preempted
    by the AEA.” See 
    42 U.S.C. §§ 6903
    (5), (27). The court noted
    that “[t]he CPA makes the presence of radioactive materials,
    whether or not a component of ‘mixed waste,’ as defined by
    the CPA, the trigger for all of its requirements.” As a further
    basis for preemption, the district court’s order listed eight
    ways in which the CPA would have a “direct and substantial
    effect on the decisions made by those who build or operate
    nuclear facilities concerning radiological safety levels[.]”
    UNITED STATES v. MANNING                       5899
    1.   The CPA’s Purpose is to Regulate Radioactive
    Materials
    The CPA is preempted because it regulates within the field
    that is occupied by the AEA.8 It is abundantly clear from the
    text of the CPA that it is intended to regulate both nonradioac-
    tive hazardous substances and radioactive hazardous sub-
    stances in order to protect health and environmental safety.
    [2] The “Policy” section of the CPA, which corresponds to
    § 2 of I-297, is telling as to the State’s intent to regulate radio-
    active safety. Section 2(1) describes Hanford as a dump for
    “radioactive and/or hazardous or toxic wastes[.]” RCW
    70.105E.020(1) (emphasis added). Subsection 4 warns that
    Washington’s economy could be harmed “from any accident
    releasing radiation[.]” RCW 70.105E.020(4) (emphasis
    added). Subsection 6 expresses the state policy of protecting
    residents from cancer-causing substances, “including radionu-
    clides[.]” RCW 70.105E.020(6).
    [3] The substantive provisions of the statute also squarely
    regulate both the nonradioactive and radioactive components
    of hazardous waste. For example, the first sentence of § 4(2)
    states:
    Any facility owner or operator of a site storing, man-
    aging, processing, transferring, treating, or disposing
    of mixed wastes shall apply for and obtain a final
    facility permit under [the HWMA], this chapter, and
    8
    Because the CPA is invalid under the Supremacy Clause, we do not
    need to reach the additional constitutional challenges. Although we do not
    reach the issue of sovereign immunity or the challenges under the Com-
    merce Clause and the Contract Clause, we decline to vacate those portions
    of the district court’s order as the State requests. Rather, we simply
    express no view on issues unnecessary to this opinion. See Niagara
    Mohawk Power Corp. v. Tonawanda Band of Seneca Indians, 
    94 F.3d 747
    , 754 (2d Cir. 1996) (declining a request to vacate an alternative basis
    for the judgment below).
    5900                  UNITED STATES v. MANNING
    [RCRA], before transporting to, storing or disposing
    at, the facility any additional mixed wastes not gen-
    erated at the facility.
    RCW 70.105E.040(2). This section imposes a condition on
    the ability of facility owners to accept mixed waste that is
    generated off-site. Simply because the permit is issued under
    the RCRA does not require the term “mixed waste” to be
    interpreted in a way that excludes the radioactive component,
    an interpretation that would be at odds with the interpretation
    of the Washington Supreme Court. Similarly, § 6(1) directs
    Ecology to order “site” owners and operators where “mixed
    wastes” are believed to be disposed to cease disposal and ini-
    tiate investigations. RCW 70.105E.060(1)(a).
    [4] Some provisions in the CPA regulate “pure” AEA
    radionuclides. For example, under § 4(6)(b), Ecology is
    directed to not issue or modify a permit if there has been a
    release of radionuclides at the site or facility. RCW
    70.105E.040(6)(b). Section 5 requires Ecology to “consider
    releases . . . of radioactive substances or radionuclides as haz-
    ardous substances” and to “require corrective action for, or
    remediation of, such releases[.]”9 RCW 70.105E.050(1).
    [5] The purpose of the CPA is evident in these provisions:
    to regulate the treatment, storage, and disposal of radioactive
    9
    The State argues that § 5(1) only regulates radiological safety in the
    context of environmental releases and, therefore, is outside the scope of
    the AEA and consistent with permissible state regulation under CERCLA.
    Through CERCLA, Congress allows states to apply their “laws concerning
    removal and remedial action” to federally-owned facilities. 
    42 U.S.C. § 9620
    (a)(4). However, § 5(1) directs Ecology to “require corrective
    action for, or remediation of” releases of radioactive substances. RCW
    70.105E.050(1). “Corrective action” is not defined in the CPA, but is a
    term that is used in connection with the RCRA. See 
    42 U.S.C. § 6924
    .
    Because radioactive materials are excluded from the RCRA, requiring a
    corrective action for the release of radionuclides exceeds the authority of
    the RCRA.
    UNITED STATES v. MANNING                 5901
    materials, among other materials, in order to protect the health
    and safety of Washington residents and the environment.
    Such regulation, however laudable its purpose, invades the
    province of the AEA.
    The Sixth Circuit’s decision in United States v. Kentucky is
    particularly instructive. 
    252 F.3d at 816
    . There, the court
    addressed whether the AEA preempted state permit condi-
    tions on the disposal of radioactive waste in a landfill. The
    conditions prohibited the DOE from placing solid waste with
    more than a de minimis amount of radioactivity in a landfill
    and further prohibited the DOE from disposing of solid waste
    that contained radionuclides in a landfill without approval
    from Kentucky’s Division of Waste Management. 
    Id. at 820
    .
    The court noted that these permit conditions “specifically
    limit the amount of ‘radioactivity’ and ‘radionuclides.’ ” 
    Id. at 823
    . It explained that the state “seeks to impose these condi-
    tions to protect human health and the environment. The per-
    mit conditions therefore represent an opportunity by the
    [state] to regulate materials covered by the AEA based on the
    [state’s] safety and health concerns, and are thus preempted.”
    
    Id.
    As in Kentucky, the State here seeks to impose conditions
    on the disposal of AEA materials out of concern for the health
    and environmental risks that increased contamination will
    cause. This type of regulation falls squarely within the field
    preempted by the AEA.
    The State attempts to sidestep the preemption issue by
    shifting the applicable definitions, contending that it is rea-
    sonable to read “mixed waste” within the operative provisions
    of the CPA as limited to the materials that may be regulated
    under the RCRA and the HWMA. This construction is neither
    reasonable nor legally permissible.
    The State’s argument fails at the outset because we are
    bound by the Washington Supreme Court’s opinion that
    5902               UNITED STATES v. MANNING
    “mixed waste” includes more than the materials regulated
    under the RCRA and the HWMA. See Reinkemeyer v. Safeco
    Ins. Co. of Am., 
    166 F.3d 982
    , 984 (9th Cir. 1999) (explaining
    that “[w]e are bound by the answers of state supreme courts
    to certified questions just as we are bound by state supreme
    court interpretations in other contexts.”). The Supreme Court
    has explained that “state courts are the ultimate expositor of
    state law [and] we are bound by their constructions except in
    extreme circumstances[.]” Mullaney v. Wilbur, 
    421 U.S. 684
    ,
    691 (1975). In other words, the State cannot re-litigate its
    argument that “mixed waste” should be read narrowly without
    invoking one of the “few established grounds for disregarding
    a state court interpretation of state law.” Reinkemeyer, 
    166 F.3d at 984
    . The State does not point to any “obvious subter-
    fuge to evade consideration of a federal issue” or a “violation
    of federal law” that could undercut the Washington Supreme
    Court’s analysis. See Mullaney, 
    421 U.S. at
    691 n.11;
    Reinkemeyer, 
    166 F.3d at 984
    .
    The State’s position is somewhat curious because it was at
    the State’s urging that the district court certified to the state
    supreme court questions that would determine whether
    “mixed waste” included substances that were not regulated
    under the RCRA or the HWMA. See Hoffman, 116 P.3d at
    1001-02. The court answered in the affirmative. Id. at 1006.
    In arriving at this construction, the court rejected the argu-
    ments that the State and the Sponsors advance now that “the
    CPA’s reference to ‘hazardous substances’ is necessarily lim-
    ited to only those materials that have been released or pose a
    threat of release [making] the CPA . . . coextensive with the
    HWMA and the RCRA.” Id. at 1004 (emphasis in original).
    The court refused to “ignore the direct cross-references incor-
    porating the expansive definition of ‘hazardous substances’ in
    RCW 70.105.010(14).” Id. “Ecology’s contention that the
    word ‘waste’ limits the application of otherwise clear and
    unequivocal statutory definitions to circumstances of ‘release
    or threatened release’ is wholly without merit.” Id. The court
    pointedly noted that it was “left with a choice between two
    UNITED STATES v. MANNING                  5903
    alternatives”: “a plain language interpretation based on the
    statutory definitions of ‘mixed waste’ and ‘hazardous sub-
    stance,” as espoused by the United States, or Ecology’s posi-
    tion which would “artificially eliminate much of the substance
    of these definitions.” Id. at 1005. In the end, Ecology’s “artifi-
    cial limitation would require [the court] to ignore long-held
    rules of statutory interpretation.” Id.
    The State now argues that, under Salerno, we cannot invali-
    date a statute as unconstitutional if there is a reasonable, con-
    stitutional construction. It is equally true, though, that we
    cannot rewrite the statute to impose an artificial, unreasonable
    definition, Virginia v. Am. Booksellers Ass’n, Inc., 
    484 U.S. 383
    , 397 (1988); United States v. Buckland, 
    289 F.3d 558
    ,
    564 (9th Cir. 2002) (en banc), nor can we hold that the CPA
    is co-extensive with the RCRA and the HWMA when the
    state supreme court has expressly ruled otherwise.
    [6] A key purpose of the CPA is to regulate the radioactive
    component of mixed waste, as well as the nonradioactive
    component, for health and safety reasons. Accordingly, the
    CPA is preempted by the AEA. Except for “limited powers
    ceded to the states,” and not disputed here, “the federal gov-
    ernment has occupied the entire field of nuclear safety con-
    cerns.” Pac. Gas & Elec., 
    461 U.S. at 212
    .
    2.   Direct and Substantial Effects
    [7] The CPA is also preempted because it directly and sub-
    stantially impacts the DOE’s decisions on the nationwide
    management of nuclear waste. See English, 
    496 U.S. at 85
    .
    According to the declaration of Dr. Ines Triay, Chief Operat-
    ing Officer for Environmental Management at the DOE, Han-
    ford figures prominently in the DOE’s waste management
    plan. Hanford is the only federal facility that can accept off-
    site mixed low level waste for disposal. The use of commer-
    cial facilities for disposal is limited because their long-term
    availability is uncertain and because commercial licenses pre-
    5904                 UNITED STATES v. MANNING
    clude the facilities from accepting higher-activity mixed low-
    level waste, classified waste, and other types of waste. The
    DOE’s National Laboratories plan to dispose of their waste at
    Hanford because that waste is too radioactive to be sent to a
    commercial facility, or is classified. Hanford is the only via-
    ble option for some sites with higher-activity mixed low-level
    waste.
    In particular, the Navy disposes of radioactive waste
    (which also contains hazardous substances, as defined by the
    CPA) that is generated through the maintenance and repair of
    nuclear powered ships at shipyards in Washington at Hanford.
    If Hanford was unavailable, it is possible, but “uncertain,”
    whether the Navy can dispose of the waste at another site.
    [8] The district court enumerated eight different direct and
    substantial effects that flow from the CPA.10 It wrote that “the
    defendants do not deny that these things happen, but assert
    there is no guarantee they will depending on the State’s inter-
    pretation and implementation of the CPA.” Yet again, the
    State tries to hide behind an as-yet-to-be-determined interpre-
    tation and implementation of the statute when the state
    supreme court has already laid out, in binding terms, the
    scope of the CPA. Finally, the State’s contention that the CPA
    does not have a direct and substantial effect on the DOE’s
    decision-making because the DOE is not currently shipping
    waste to Hanford misses the point. The facilities at Hanford
    are part of the DOE’s overall nuclear waste management plan.
    Legislation geared to effectively close Hanford for an
    extended period of time directly affects the DOE’s ability to
    make decisions regarding if and when it will ship additional
    10
    For example, the district court explained that the CPA would have the
    direct and substantial effect of prohibiting the Navy from sending certain
    classified nuclear waste to Hanford, trump DOE decision-making with
    respect to the cleanup and disposal of AEA radionuclides, including any
    expansion of any land disposal unit for radionuclides, and prevent the
    DOE from using methods it deems appropriate for closing tanks that con-
    tain AEA radionuclides.
    UNITED STATES v. MANNING                 5905
    waste to Hanford. Because of these direct and substantial
    effects, the CPA is preempted.
    B.   SAVINGS CLAUSE
    [9] The CPA contains a savings clause that authorizes Ecol-
    ogy to “regulate mixed wastes to the fullest extent it is not
    preempted by federal law[.]” RCW 70.105E.040(1). Regula-
    tion of the radioactive component of mixed waste is pre-
    empted by federal law. The CPA regulates mixed waste as a
    whole and certain provisions contain specific mandates con-
    cerning the radioactive component. The definitional cross-
    references and intersection with multiple state and federal
    statutes make the CPA a complex regulatory web. For exam-
    ple, in the CPA, the focus is on “mixed waste,” without distin-
    guishing the radioactive component from the “hazardous”
    component, and yet the HWMA focuses on “hazardous
    waste,” even where it is a component of “mixed waste.”
    [10] Although it might be possible to excise those provi-
    sions that deal solely with radioactive materials, to construe
    the remaining sections of the CPA as limited to the nonradio-
    active component would require us to examine and rewrite
    most of the statute in a vacuum as to how the various provi-
    sions were intended to intersect and in a way that would be
    at odds with the purpose of the statute. See Alaska Airlines v.
    Brock, 
    480 U.S. 678
    , 684 (1987) (“ ‘Unless it is evident that
    the Legislature would not have enacted those provisions
    which are within its power, independently of that which is
    not, the invalid part may be dropped if what is left is fully
    operative as a law.’ ”) (quoting Buckley v. Valeo, 
    424 U.S. 1
    ,
    108 (1976) (per curiam)). We will not undertake this task of
    unscrambling the egg. See Planned Parenthood of Idaho, Inc.
    v. Wasden, 
    376 F.3d 908
    , 937 (9th Cir. 2004) (noting the
    court’s “previously expressed concern that federal courts
    ought not be redrafting state statutes at the level of individual
    words”). And, as a practical matter, excising the most signifi-
    5906              UNITED STATES v. MANNING
    cant conflicts in the statute would result in a very difficult
    statute than the one envisioned by I-297.
    [11] The CPA is preempted by the AEA because its pur-
    pose is to regulate AEA materials for safety purposes and
    because the CPA has a direct and substantial effect on the
    DOE’s ability to make decisions regarding the disposal of
    radioactive hazardous waste. The district court’s grant of
    summary judgment to the United States, Fluor, and TRIDEC
    is affirmed.
    III.   TRIDEC’S CROSS-APPEAL FOR ATTORNEY’S FEES
    [12] TRIDEC’s cross-appeal challenges the district court’s
    denial of its motion for attorney’s fees under 
    42 U.S.C. § 1988
    . The district court resolved this case under the
    Supremacy Clause, holding that “the CPA is field preempted
    and facially invalid as a whole.” We have affirmed that result.
    Attorney’s fees are not available in an action under the
    Supremacy Clause. Golden State Transit Corp. v. City of Los
    Angeles, 
    493 U.S. 103
    , 107 (1989). The district court also
    identified other deficiencies and addressed the Commerce
    Clause and Contract Clause arguments, but only as alternative
    holdings and to avoid piecemeal appeal. In addition, the court
    noted that the judgment had not changed the legal relationship
    among the parties, as the State “had taken no action in the
    first instance to enforce the CPA against the members of TRI-
    DEC.” See Texas State Teachers Ass’n v. Garland Indep. Sch.
    Dist., 
    489 U.S. 782
    -792 (1989) (holding that to be considered
    a prevailing party under § 1988, there must be “a resolution
    of the dispute which changes the legal relationship” between
    the plaintiff and the defendant). The district court’s denial of
    TRIDEC’s motion for attorney’s fees is affirmed.
    AFFIRMED.