United States v. CDMG Realty Co , 96 F.3d 706 ( 1996 )


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  •                                                                                                                            Opinions of the United
    1996 Decisions                                                                                                             States Court of Appeals
    for the Third Circuit
    9-27-1996
    USA v. CDMG Realty Co
    Precedential or Non-Precedential:
    Docket 95-5505
    Follow this and additional works at: http://digitalcommons.law.villanova.edu/thirdcircuit_1996
    Recommended Citation
    "USA v. CDMG Realty Co" (1996). 1996 Decisions. Paper 82.
    http://digitalcommons.law.villanova.edu/thirdcircuit_1996/82
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    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    ___________
    NO. 95-5505
    ___________
    UNITED STATES OF AMERICA
    v.
    CDMG REALTY CO., a limited partnership; HELEN E. RINGLIEB,
    individually, and as general partner in CDMG REALTY CO.;
    HMAT ASSOCIATES, INC.; TOWNSHIP OF PARSIPPANY-TROY HILLS;
    ALLIED-SIGNAL, INC; BEAZER MATERIALS & SERVICES, INC.;
    CIBA-GEIGY CORPORATION; HOECHST CELANESE CORP.; OCCIDENTAL
    CHEMICAL CORP.; PFIZER, INC.; CARL GULICK, INC.; BECTON
    DICKINSON, INC.; WARNER-LAMBERT COMPANY; AMERICAN TELEPHONE
    AND TELEGRAPH COMPANY; BROWNING-FERRIS INDUSTRIES OF NORTH
    JERSEY, INC.; INDUSTRIAL CIRCUITS COMPANY; AUTOMATIC SWITCH
    COMPANY; ROWE INTERNATIONAL INC.; HOSOKAWA MICRON INTERNATIONAL
    INC.; SCOVILL INC.; K-H CORPORATION ON BEHALF OF MAGOR CAR;
    LESLIE CONTROLS COMPANY, INC.; NESOR ALLOY CORPORATION; SANDOZ
    PHARMACEUTICALS CORPORATION; KIDDE INDUSTRIES, INC. (named
    in the complaint as Hanson Industries); RAYONIER INC.,
    (formerly ITT Rayonier, Inc.); WAGNER ELECTRIC CORPORATION
    (named in the Complaint as Cooper Industries, Inc.); THE
    SHERWIN-WILLIAMS COMPANY; KDI/TRIANGLE ELECTRONICS, INC.;
    STATE OF NEW JERSEY DEPARTMENT OF TRANSPORTATION; JOHN DUSENBURY
    COMPANY; SAFETY LIGHT CORPORATION, (named in the Complaint as USR
    Industries, Inc.); THE BOC GROUP, INC.; L.E. CARPENTER & CO.;
    THE MENNEN COMPANY; METEM CORPORATION; NSK CORPORATION; CERAMIC
    MAGNETICS, INC.; AIR PRODUCTS & CHEMICALS, INC.; ROCKLAND
    CORPORATION; SIKA CORPORATION; CARBONE USA CORPORATION;
    NEW JERSEY TRANSIT CORPORATION; NEW JERSEY BUS OPERATIONS, INC.
    v.
    THE SHARKEY LANDFILL AGREEMENT GROUP, an organization of
    Defendants in Civil Action Number 89-4246 (NHP), for
    themselves and on behalf of other Settling Defendants whose
    contribution claims they may assert pursuant to an
    assignment of rights and HOECHST CELANESE CORPORATION, one of
    its members; BEAZER MATERIALS & SERVICES, INC.; OCCIDENTAL
    CHEMICAL
    CORPORATION; HMAT ASSOCIATES, INC.,
    Third-Party Plaintiffs
    v.
    ADRON, INC.; AMERACE CORPORATION and SEQUA CORPORATION;
    AIR PRODUCTS & CHEMICALS, INC.; BASIC, INC.; THE BOC GROUP, INC.;
    CARBONE U.S.A. CORP.; CERAMIC MAGNETICS, INC.; COLLOID CHEMICAL,
    INC.; COOPER INDUSTRIES, INC.; HANSON INDUSTRIES; INTERNATIONAL
    ENGRAVING CORP.; INTERNATIONAL PAPER COMPANY; ITT RAYONIER, INC.;
    JOHN DUSENBURY COMPANY, INC.; KDI/TRIANGLE ELECTRONICS INC.;
    L.E. CARPENTER & CO.; LITTON SYSTEMS, INC.;
    THE MENNEN COMPANY; METEM CORPORATION;
    NEW JERSEY TRANSIT CORPORATION; NEW JERSEY TRANSIT BUS COMPANY,
    INC.; NSK CORPORATION; OLD DEERFIELD FABRICS, INC.;
    PANTASOTE INC.; PQ CORPORATION; PRECISION MANUFACTURING CO., INC;
    ROCKLAND CORPORATION; SANDOZ PHARMACEUTICALS CORPORATION; THE
    SHERWIN-WILLIAMS COMPANY; SIKA CORPORATION; USR INDUSTRIES, INC.
    and TOWNSHIP OF BLOOMFIELD; TOWN OF BOONTON; TOWNSHIP OF BOONTON;
    BOROUGH OF BUTLER; TOWNSHIP OF THE BOROUGH OF CALDWELL;
    TOWNSHIP OF CHATHAM; CITY OF CLIFTON; TOWNSHIP OF DENVILLE;
    TOWN OF DOVER; TOWNSHIP OF EAST HANOVER; COUNTY OF ESSEX;
    TOWNSHIP OF FAIRFIELD; TOWNSHIP OF GLEN RIDGE BOROUGH;
    BOROUGH OF HALEDON; TOWNSHIP OF HANOVER; CITY OF JERSEY CITY;
    BOROUGH OF KINNELON; BOROUGH OF LINCOLN PARK;
    TOWNSHIP OF LITTLE FALLS; TOWNSHIP OF LIVINGSTON; TOWNSHIP
    OF MILLBURN; TOWNSHIP OF MINE HILL; TOWNSHIP OF MONTCLAIR;
    TOWNSHIP OF MONTVILLE; TOWNSHIP OF MORRIS; TOWN OF MORRISTOWN;
    BOROUGH OF MOUNTAIN LAKES; TOWNSHIP OF PEQUAMNOCK; BOROUGH OF
    POMPTON LAKES; BOROUGH OF PROSPECT PARK; TOWNSHIP OF RANDOLPH;
    BOROUGH OF RIVERDALE; TOWNSHIP OF ROCKAWAY; CITY OF SUMMIT;
    BOROUGH OF TOTOWA; BOROUGH OF VICTORY GARDENS; TOWNSHIP OF WEST
    CALDWELL; TOWNSHIP OF WEST ORANGE; BOROUGH OF WHARTON; VINCENT
    APICE AND SON; FRANK M. BACE DISPOSAL, INC.; CALDWELL TRUCKING
    CO., INC.; CARNER BROS., INC.; CENTRAL WASTE AND MILL SERVICE,
    INC.; CHATHAM DISPOSAL COMPANY; CHEM-QUID DISPOSAL, INC.;
    CARMEL CHIULLO; JOHN COSTA; JOSEPH DEFRIETAS; DELL & SONS;
    DENVILLE DISPOSAL CO., INC.; DIMARCO SANITATION; SAM FIORENZO;
    FRANK'S SANITATION SERVICE; GARBCO ASSOCIATES, INC.; B. HORSTMANN
    SEPTIC TANK SERVICE; DANIEL JACKSON; J.M.S. SANITATION CO.;
    R. LOBOSCO AND SONS, INC.; MARANGI SANITATION, INC.;
    FRANK J. MARINARO; MERCER WASTE REMOVAL CO.;
    ANTHONY MIELE; MORRIS COUNTY; WEST ESSEX DISPOSAL CO., INC.;
    STATE OF NEW JERSEY DEPARTMENT OF TRANSPORTATION;
    HELEN ELAINE RINGLIEB and TOWNSHIP OF ESSEX FELLS;
    HARDING TOWNSHIP; MADISON BOROUGH;
    BOROUGH OF NEW PROVIDENCE; ROSELAND BOROUGH; UNION COUNTY;
    WAYNE TOWNSHIP; DOWEL ASSOCIATES, a general partnership;
    HERBERT M. IRIS, individually and as a general partner in DOWEL
    ASSOCIATES; LESTE Z. LIEBERMAN, individually and as general
    partner in DOWEL ASSOCIATES,
    Third-Party Defendants
    (Newark N.J. D.C. Civil No. 89-cv-04246)
    STATE OF NEW JERSEY DEPARTMENT OF ENVIRONMENTAL PROTECTION
    v.
    CIBA-GEIGY CORPORATION, INC.; CURTISS-WRIGHT CORPORATION;
    HOECHST-CELANESE CORPORATION; KETCHAM AND MC DOUGALL, INC.;
    PFIZER, INC.; OCCIDENTAL PETROLEUM CORPORATION; KOPPERS
    COMPANY, INC.; SHARKEY FARMS, INC.; NICHOLAS ENTERPRISES,
    INC.; PARKER CHEMICAL COMPANY; CHEMICAL WASTE MANAGEMENT, INC.
    (NEWARK N.J. D.C. Civil No. 89-cv-04281)
    HMAT Associates, Inc., Appellant
    _________________________________________
    On Appeal From the United States District Court
    For the District of New Jersey
    _________________________________________
    Argued: March 18, 1996
    Before:   BECKER, McKEE, and McKAY,
    Circuit Judges.
    (Filed September 27, l996)
    JAMES J. PERICONI, ESQUIRE (ARGUED)
    Periconi & Rothberg, P.C.
    230 Park Avenue, Suite 615
    New York, NY 19169
    Attorneys for Third-Party Plaintiff/Appellant
    R. BRUCE MORRISON, ESQUIRE
    DAVID B. FARER, ESQUIRE (ARGUED)
    JOHN P. QUIRKE, ESQUIRE
    Farer Siegal Fersko
    A Professional Association
    600 South Avenue
    P.O. Box 580
    Westfield, NJ 07091
    Attorneys for Third-Party Defendants/Appellees
    _________________________
    OPINION OF THE COURT
    _________________________
    BECKER, Circuit Judge.
    This appeal requires us to determine the meaning of the word
    "disposal" in the Comprehensive Environmental Response,
    Compensation, and Liability Act (CERCLA), 42 U.S.C. § 9601 et
    seq. Plaintiff HMAT Associates, the current owner of
    contaminated property, was sued by the United States under CERCLA
    for the costs of cleaning up the site. HMAT sought contribution
    from Defendant Dowel Associates, the company that sold the land
    to HMAT, on the ground that Dowel was a prior owner "at the time
    of disposal," see 42 U.S.C. § 9607(a)(2). HMAT concedes that no
    one dumped waste at the property during Dowel's ownership, but
    offers two reasons why "disposal" took place during Dowel's
    tenure. HMAT first advances a "passive" disposal theory: that
    "disposal" occurred because contamination dumped in the land
    prior to Dowel's purchase of the property spread during Dowel's
    ownership. HMAT also offers an "active" disposal theory: that a
    soil investigation conducted by Dowel to determine whether the
    land could support construction caused the dispersal of
    contaminants, and that this constitutes "disposal."
    On cross-motions for summary judgment, the district court
    ruled in favor of Dowel. The court rejected HMAT's argument that
    the spread of contamination unaided by human conduct can confer
    CERCLA liability and held that any disturbance of contaminants
    caused by Dowel's soil testing was too insignificant to amount to
    "disposal." HMAT appeals the court's grant of Dowel's summary
    judgment motion and the denial of its own motion.
    We hold that the passive migration of contamination dumped
    in the land prior to Dowel's ownership does not constitute
    disposal. Finding it unnecessary to reach the question whether
    the movement of contaminants unaided by human conduct can ever
    constitute "disposal," we conclude that the language of CERCLA's
    "disposal" definition cannot encompass the spreading of waste at
    issue here. This conclusion is based on an examination of
    CERCLA's text, is supported by the structure of the statute, and
    is consistent with CERCLA's purposes.
    Regarding Dowel's soil testing, we hold that there is no
    threshold level of disturbance required to constitute "disposal,"
    and that HMAT has identified evidence that would justify a
    factfinder's conclusion that contaminants were spread in the
    testing. We also hold, however, that because CERCLA clearly
    contemplates that prospective purchasers be allowed to conduct
    soil investigations to determine whether property is
    contaminated, a plaintiff must show not only that a soil
    investigation has caused the spread of contaminants, but also
    that the investigation was conducted negligently.
    Thus, although we agree with the district court that HMAT's
    passive theory is not viable, HMAT may be able to proceed on its
    active theory. Accordingly, we will vacate the district court's
    grant of summary judgment to Dowel and remand for further
    proceedings consistent with this opinion.
    I. Facts and Procedural History
    The property at issue in this case, a ten-acre parcel of
    land in Morris County, New Jersey, was once part of the Sharkey's
    Farm Landfill (Sharkey's Landfill). Sharkey's Landfill operated
    as a municipal landfill from 1945 until 1972. During its
    operation, the landfill received waste from several counties in
    northern New Jersey. In addition to accepting municipal solid
    waste, the landfill received approximately 750,000 pounds of
    hazardous chemical waste from Ciba-Geigy Company, a large
    pharmaceutical concern. Additional chemical waste from other
    sources may also have been deposited there. For example, Koppers
    Chemical Company allegedly disposed of about 3,000,000 gallons of
    wastewater of unknown composition in the landfill. Between 1966
    and 1972, county and state agencies received steady complaints
    about odors, smoke from fires, lack of proper cover, and the
    presence of dead animals in the landfill. The landfill was
    closed to further disposal in 1972.
    The Environmental Protection Agency (EPA) and the New Jersey
    Department of Environmental Protection and Energy (NJDEPE) began
    investigating Sharkey's Landfill in the mid to late 1970s. In
    1982, the EPA placed Sharkey's Landfill on the National
    Priorities List of Hazardous Waste Sites.
    In December 1981, Dowel purchased the property. The land
    was vacant at the time of purchase, and it remained vacant during
    Dowel's ownership. Neither Dowel nor any other person deposited
    waste at the site during Dowel's term of ownership. Dowel's only
    activity on the land was a soil investigation, conducted in
    September 1981 (three months prior to finalizing its purchase) to
    determine the land's ability to support construction. The soil
    investigation, which was performed by Thor Engineering, involved
    nine drill borings, each twelve to eighteen feet into the ground.
    Thor's logs show that its equipment bored through various waste
    materials and groundwater and that several of the boreholes
    "caved" during the testing. App. 120.
    In November 1983, the NJDEPE notified Dowel that it was
    investigating the property and that Dowel should cease any
    planned activities at the site. In 1984, the EPA notified Dowel
    that Dowel was potentially liable for the cleanup costs of the
    site and invited it to undertake voluntary cleanup. App. 273.
    In 1987, Dowel sold the property to HMAT. In the contract
    of sale, Dowel fully disclosed that the property was part of the
    Sharkey Landfill, that the landfill was under investigation by
    state and federal environmental authorities, and that the
    property was part of a possible Superfund site. App. 282.
    In October 1989, EPA and NJDEPE commenced actions against
    parties potentially liable for the costs of cleaning up the
    Sharkey Landfill and seeking a declaration of future liability.
    HMAT, as the current owner of the property, was named as a
    defendant under CERCLA § 107(a)(1), 42 U.S.C. § 9607(a)(1).
    Dowel was not sued. However, HMAT filed a third-party suit
    against Dowel, seeking contribution from Dowel as a former owner
    of the property "at the time of disposal" pursuant to CERCLA §§
    107(a)(2) and 113(f). HMAT also pled state law claims.
    Dowel moved for summary judgment, arguing that under CERCLA,
    prior owners are only liable if they actively engage in waste
    disposal during their ownership of the property. HMAT also moved
    for summary judgment. HMAT challenged Dowel's reading of CERCLA,
    contending that prior owners are liable if they fail to stop the
    migration of contaminants on their property. In addition, HMAT
    argued that Dowel actively engaged in waste disposal within the
    meaning of CERCLA: HMAT submitted an affidavit from Laura
    Truettner, an expert environmental consultant, which asserted
    that Dowel's drill borings exacerbated contamination by mixing,
    shifting, and spreading waste materials. In response, Dowel
    submitted an affidavit from Peter Wilner, the principal of Thor
    Engineering, stating that the boring did not spread or mix any
    materials. HMAT then submitted another affidavit from Truettner,
    which contended that Wilner's affidavit contains misleading
    statements and directly contradicts the contemporaneous record of
    the drilling.
    As we have noted, the district court granted Dowel's motion
    in full and denied HMAT's cross-motion. The court reasoned that
    mere ownership of previously contaminated property does not
    trigger liability under CERCLA, and that, even accepting HMAT's
    version of the facts, Dowel's drilling activities did not cause a
    significant enough disturbance to trigger liability. HMAT
    appeals the district court's rulings on its CERCLA claims
    (although it accepts the district court's conclusion that Dowel
    is not liable under state law). We exercise plenary review over
    the district court's summary judgment rulings. See, e.g., United
    States v. Capital Blue Cross, 
    992 F.2d 1270
    , 1271-72 (3d Cir.
    1993).
    II. Passive Spreading in a Landfill as Disposal
    A. Introduction
    CERCLA is a broad and complex statute aimed at the dangers
    posed by hazardous waste sites. Among other things, CERCLA
    provides a cause of action to recover "response costs" incurred
    in remedying an environmental hazard, 42 U.S.C. § 9607, and
    allows those liable for response costs to seek contribution from
    other liable parties, 
    id. § 9613(f).
    A plaintiff must meet four
    elements to establish CERCLA liability: (1) that hazardous
    substances were disposed of at a "facility"; (2) that there has
    been a "release" or "threatened release" of hazardous substances
    from the facility into the environment; (3) that the release or
    threatened release has required or will require the expenditure
    of "response costs"; and (4) that the defendant falls within one
    of four categories of responsible parties. 
    Id. § 9607(a);
    seeUnited
    States v. Alcan Aluminum Corp., 
    964 F.2d 252
    , 258-59 (3d
    Cir.), reh'g and reh'g in banc denied, 
    964 F.2d 271
    (3d Cir.
    1992). If these requirements are met, responsible parties are
    liable for response costs regardless of their intent. See 
    id. at 259
    ("CERCLA imposes strict liability on responsible parties.").
    The parties agree that the first three requirements are met.
    Their dispute concerns whether Dowel is a responsible party.
    CERCLA makes four classes of people liable for response costs or
    contribution: the current owner or operator of a facility, 
    id. § 9607(a)(1);
    any person who owned or operated the facility "at the
    time of disposal" of a hazardous substance, 
    id. § 9607(a)(2);
    any
    person who arranged for disposal or treatment, or arranged for
    transport for disposal or treatment of hazardous substances at
    the facility, § 9607(a)(3); and any person who accepts or
    accepted hazardous substances for transport to sites selected by
    such person, 
    Id. § 9607(a)(4).
    HMAT contends that Dowel is
    liable as a person who owned or operated the facility "at the
    time of disposal" of a hazardous substance.
    CERCLA defines "disposal" by incorporating the definition
    used by the Resource Conservation and Recovery Act (RCRA). See42 U.S.C. §
    9601(29) ("The terms 'disposal', 'hazardous waste',
    and 'treatment' shall have the meaning provided in section 1004
    of the Solid Waste Disposal Act."). Under RCRA,
    The term "disposal" means the discharge, deposit,
    injection, dumping, spilling, leaking, or placing of
    any solid waste or hazardous waste into or on any land
    or water so that such solid waste or hazardous waste or
    any constituent thereof may enter the environment or be
    emitted into the air or discharged into any waters,
    including ground waters.
    42 U.S.C. § 6903(3). Focusing on the breadth of this definition,
    HMAT reads "disposal" to encompass the passive migration of
    contaminants. HMAT offers no evidence that any passive migration
    has occurred here but asks us to take judicial notice that waste
    tends to spread once it is put in the ground, See Office of
    Remedial Response, United States Environmental Protection Agency,
    Superfund Exposure Assessment Manual 8 (1988) [Hereinafter
    Superfund Manual] (waste in landfills tends to migrate due to,
    inter alia, rain, groundwater movement, and wind) and waste
    therefore must have spread during the six years Dowel owned the
    property. Several courts have been sympathetic to this argument.
    See United States v. Waste Indus., Inc., 
    734 F.2d 159
    , 164-65
    (4th Cir. 1984) (migration of hazardous substances can constitute
    disposal under RCRA); CPC International, Inc. v. Aerojet-General
    Corp., 
    759 F. Supp. 1269
    , 1278 (W.D. Mich. 1991) (the unchecked
    spread of contaminated groundwater qualifies as disposal under
    CERCLA); Stanley Works v. Snydergeneral Corp., 
    781 F. Supp. 659
    ,
    662-64 (E.D. Cal. 1990) (ongoing migration of hazardous
    substances constitutes disposal under CERCLA); United States v.
    Price, 
    523 F. Supp. 1055
    , 1071 (D.N.J. 1981) (spreading of
    hazardous substances constitutes disposal under RCRA), aff'd, 
    688 F.2d 204
    (3d Cir. 1982); cf. Nurad, Inc. v. William E. Hooper &
    Sons Co., 
    966 F.2d 837
    , 845-46 (4th Cir.) (leaking from tanks
    that were deposited prior to the defendants' ownership
    constitutes disposal subjecting the defendant to CERCLA
    liability), cert. denied sub nom. Mumaw v. Nurad, Inc., 
    506 U.S. 940
    (1992); State of New York v. Almy Bros., Inc., 
    866 F. Supp. 668
    , 676-77 (N.D.N.Y. 1994) (gradual leaking from drums deposited
    prior to the defendants' ownership constitutes disposal under
    CERCLA); In re Hemingway Transport, Inc., 
    108 B.R. 378
    , 382
    (Bankr. D. Mass. 1989) (leaking drums constitute CERCLA
    disposal), aff'd, 
    126 B.R. 650
    (D. Mass. 1991), aff'd, 
    954 F.2d 1
    (1st Cir. 1992).
    We are unpersuaded. A thorough examination of the text and
    structure of CERCLA convinces us that the passive migration of
    contaminants alleged here does not constitute disposal. Our
    conclusion is based on the plain meaning of the words used in the
    disposal definition and is supported by the structure of CERCLA's
    liability scheme. We also believe that our interpretation is
    consistent with CERCLA's purposes.
    B. The Language
    1. The Definition of "Disposal"
    The definition of disposal begins with "the discharge,
    deposit, injection, dumping, spilling, leaking, or placing of any
    solid waste or hazardous waste into or on any land or water." 42
    U.S.C. § 6903(3). Courts holding that passive migration can
    constitute disposal have focused on the words "leaking" and
    "spilling," terms that generally do not denote active conduct.
    See CPC International, Inc. v. Aerojet-General Corp., 759 F.
    Supp. 1269, 1278 (W.D. Mich. 1991); United States v. Price, 
    523 F. Supp. 1055
    , 1071 (D.N.J. 1981), aff'd, 
    688 F.2d 204
    (3d Cir.
    1982).
    We think there is a strong argument, however, that in the
    context of this definition, "leaking" and "spilling" should be
    read to require affirmative human action. Both "leaking" and
    "spilling" also have meanings that require some active human
    conduct. "Leak" can be defined as "to permit to enter or escape
    through a leak." Webster's Third New International Dictionary,
    Unabridged 1285 (Philip Babcock Gove & the Mirriam-Webster
    Editorial Staff eds., 1986) [hereinafter Webster's]. Similarly,
    "spill" can mean "to cause or allow to pour, splash, or fall
    out." 
    Id. at 2195.
    Meaning derives from context, hence the
    constructional canon noscitur a sociis, which states that one may
    infer meaning by examining the surrounding words. The words
    surrounding "leaking" and "spilling" -- "discharge," "deposit,"
    "injection," "dumping," and "placing" -- all envision a human
    actor. In the context of these other words, then, Congress may
    have intended active meanings of "leaking" and "spilling." SeeEcodyne
    Corp. v. Shah, 
    718 F. Supp. 1454
    , 1457 (N.D. Cal. 1989);
    Robert L. Bronston, Note, The Case Against Intermediate Owner
    Liability for Passive Migration of Hazardous Waste, 
    93 Mich. L
    .
    Rev. 609, 616 (1994).
    But we need not address this question in the broad terms of
    whether disposal always requires active human conduct. Even if
    it does not, we conclude that the passive migration at issue in
    this case cannot constitute disposal. While "leaking" and
    "spilling" may not require affirmative human conduct, neither
    word denotes the gradual spreading of contamination alleged here.
    A common definition of "leak" -- and the one most favorable to
    HMAT -- is "to enter or escape through a hole, crevice, or other
    opening." Webster's, supra at 1285. This definition requires
    that a substance "leak" from some opening. For example, the
    definition would encompass the escape of waste through a hole in
    a drum. But HMAT has offered no evidence of leaking drums.
    Compare, e.g., Nurad, Inc. v. William E. Hooper & Sons Co., 
    966 F.2d 837
    , 846 (4th Cir.) (the plaintiff presented evidence
    showing that tanks had leaked), cert. denied sub nom. Mumaw v.
    Nurad, Inc., 
    506 U.S. 940
    (1992). And there is no other evidence
    that waste escaped from any opening during Dowel's ownership.
    The definition of "spilling" is also unavailing. Although
    "spilling" too sometimes denotes the movement of liquid in the
    absence of human action, such a definition does not cover the
    spreading of waste at issue here. Passive definitions of "spill"
    suggest a rapid torrent, not gradual passive migration over the
    course of several years. See Webster's, supra at 2195 (defining
    "spill" as, inter alia, "to flow, run, or fall out, over, or off
    with waste, loss, or scattering as the result" and as "to come,
    go, or pass with a turbulent rush[; to] pour in an unrestrained,
    profuse, or disorderly manner"). Consider, for example, an "oil
    spill."
    2. A Comparison With "Release"
    It is especially unjustified to stretch the meanings of
    "leaking" and "spilling" to encompass the passive migration that
    generally occurs in landfills in view of the fact that another
    word used in CERCLA, "release," shows that Congress knew
    precisely how to refer to this spreading of waste. A prior owner
    who owned a waste site at the time of "disposal" is only liable
    in the event of a "release" or "threatened release." 42 U.S.C. §
    9607. CERCLA defines release in relevant part as follows:
    The term "release" means any spilling, leaking,
    pumping, pouring, emitting, emptying, discharging,
    injecting, escaping, leaching, dumping, or disposing
    into the environment (including the abandonment or
    discarding of barrels, containers, and other closed
    receptacles containing any hazardous substance or
    pollutant or contaminant) . . . .
    42 U.S.C. § 9601(22). The definition of "release" is thus
    broader than that of "disposal": "release" encompasses
    "disposing" and some elements of the "disposal" definition and
    also includes some additional terms.
    Most importantly, the definition of "release" includes the
    term "leaching," which is not mentioned in the definition of
    "disposal." "Leaching" is "the process or an instance of
    separating the soluble components from some material by
    percolation." Webster's, supra at 1282. Leaching of
    contaminants from rain and groundwater movement is a principal
    cause of contaminant movement in landfills, see Superfund Manual,
    supra at 8, and is the most predominant cause of groundwater
    contamination from landfills, Edward Repa & Charles Kufs,
    Leachate Plume Management 2 (1985). The word "leaching" is
    commonly used in the environmental context to describe this
    migration of contaminants. See, e.g., Steven Ferrey, The Toxic
    Time Bomb: Municipal Liability for the Cleanup of Hazardous
    Waste, 57 Geo. Wash. L. Rev. 197, 207 n.34 (1988) ("Leachate is
    liquid or water soluble contaminated substances that migrate away
    from the point source of contamination in groundwater or surface
    water, often influenced by rain and normal water table
    activities. Such a phenomenon is described as 'leaching' of
    contaminants.") Congress's use of the term "leaching" in the
    definition of "release" demonstrates that it was aware of the
    concept of passive migration in landfills and that it knew how to
    explicitly refer to that concept.
    .    Yet Congress made prior owners liable only if they owned
    land at the time of "disposal," not at the time of "release."
    3. "At the Time of Disposal"
    Our conclusion that the meaning of the words in the
    "disposal" definition cannot cover the passive migration alleged
    in this case is buttressed by the language of CERCLA's liability
    provision. If the spreading of contaminants is constant, as HMAT
    would have us assume, characterizing liable parties as "any
    person who at the time of disposal . . . owned or operated any
    facility," 42 U.S.C. § 9607(a)(2), would be a rather complicated
    way of making liable all people who owned or operated a facility
    after the introduction of waste into the facility. See Snediker
    Developers Ltd. Partnership v. Evans, 
    773 F. Supp. 984
    , 989 (E.D.
    Mich. 1991); Ecodyne Corp. v. Shah, 
    718 F. Supp. 1454
    , 1457 (N.D.
    Cal. 1989); In re Diamond Reo Trucks, Inc., 
    115 B.R. 559
    , 565
    (Bankr. W.D. Mich. 1990). Furthermore, there would be no need
    for the separate responsible party category of current owner or
    operator, 
    id. § 9607(a)(1).
    See Ecodyne 
    Corp., 718 F. Supp. at 1457
    . Although CERCLA is not written with great clarity, we
    will not impute to Congress an intent to set up a simple
    liability scheme through a convoluted methodology.
    C. Structure: The Innocent Owner Defense
    Our conclusion that the language of CERCLA's definition of
    "disposal" does not include the passive migration alleged here is
    also supported by a significant aspect of CERCLA's liability
    scheme, the innocent owner defense. Since the 1986 Superfund
    Amendments and Reauthorization Act (SARA), Pub. L. No. 99-499,
    100 Stat. 1613 (1986) (codified at 42 U.S.C. §§ 9601-9675),
    CERCLA has exempted certain "innocent owners" from liability.
    CERCLA provides a defense to liability if the defendant can
    prove that the release or threatened release was caused solely by
    an act or omission of a third party. 42 U.S.C. § 9607(b)(3).
    The defense is generally not available if the third party causing
    the release is in the chain of title with the defendant. See 42
    U.S.C. § 9601(35)(A). However, the defense is available in such
    circumstances if the person claiming the defense is an "innocent
    owner." To establish the innocent owner defense the defendant
    must show that "the real property on which the facility is
    located was acquired by the defendant after the disposal or
    placement of the hazardous substance on, in, or at the facility"
    and that "[a]t the time the defendant acquired the facility the
    defendant did not know and had no reason to know that any
    hazardous substance which is the subject of the release or
    threatened release was disposed of on, in, or at the facility."
    Because CERCLA conditions the innocent owner defense on the
    defendant's having purchased the property "after the disposal" of
    hazardous waste at the property, "disposal" cannot constitute the
    allegedly constant spreading of contaminants. Otherwise, the
    defense would almost never apply, as there would generally be no
    point "after disposal." See United States v. Petersen Sand and
    Gravel, Inc., 
    806 F. Supp. 1346
    , 1351-52 (N.D. Ill. 1992); In re
    Diamond Reo Trucks, Inc. v. City of Lansing, 
    115 B.R. 559
    , 566
    n.3 (Bankr. W.D. Mich. 1990); Bronston, supra at 627-28. We
    think it unlikely that Congress would create a basically useless
    defense.
    The innocent owner defense's apparent limitation to current
    owners also supports the conclusion that "disposal" does not
    encompass the passive spreading alleged here. The provision
    establishing the innocent owner defense states: "Nothing in this
    paragraph or in section 9607(b)(3) of this title [, which
    provides the causation defenses including the third party
    defense,] shall diminish the liability of any previous owner or
    operator who would be otherwise liable under this chapter." 42
    U.S.C. § 9601(35)(C). This language certainly suggests that the
    innocent owner defense is unavailable to prior owners or
    operators.
    While the question whether the innocent owner defense is
    available only to present owners is not before us -- and we do
    not decide the issue -- we note that such a limitation makes
    sense only if passive spreading of waste in a landfill is not
    included in disposal. If passive migration is excluded from
    "disposal," past owners will generally only be liable as owners
    "at the time of disposal" when they have committed or allowed
    affirmative acts of disposal on their property. They would thus
    have little need for the innocent owner defense, which requires,
    inter alia, that a defendant did not "cause[] or contribute[] to
    the release or threatened release," 42 U.S.C. § 9601(35)(D);
    "exercised due care with respect to the hazardous substance
    concerned," 
    id. § 9607(b)(3)(a);
    and "took precautions against
    foreseeable acts or omissions of any such third party [causing
    the release] and the consequences that could foreseeably result
    from such acts or omissions," 
    id. § 9607(b)(3)(b).
    On the other
    hand, if prior owners were liable because waste spread during
    their tenure and the innocent owner defense is available only to
    current owners, prior owners would be in a significantly worse
    position than current owners: they would be liable for passive
    migration of waste even if they had no reason to know of the
    waste's presence. We do not believe that this was Congress's
    intent.
    D. CERCLA's Purposes
    We have explained our confidence that the meaning of the
    words defining "disposal" does not encompass the gradual
    spreading of waste in a landfill and that this conclusion is
    supported by the structure of the innocent owner defense. We
    also conclude that this reading of "disposal" is consistent with
    CERCLA's purposes.
    Congress enacted CERCLA with two principal goals in minds --
    to facilitate the cleanup of potentially dangerous hazardous
    waste sites, Tippins Inc. v. USX Corp., 
    37 F.3d 87
    , 92 (3d Cir.
    1994), and to force polluters to pay the costs associated with
    their pollution, United States v. Alcan Aluminum, 
    964 F.2d 252
    ,
    257-58 (3d Cir. 1992). See United States v. USX Corp., 
    68 F.3d 811
    , 814 (3d Cir. 1995). Our holding is clearly consistent with
    the latter purpose. Those who owned previously contaminated
    property where waste spread without their aid cannot reasonably
    be characterized as "polluters"; excluding them from liability
    will not let those who cause the pollution off the hook. And,
    many of these owners will pay for the pollution: if they
    disclose the fact that the land contains waste, their selling
    price will reflect the cost of CERCLA liability. If they have
    knowledge of contamination and do not disclose it to a
    transferee, they are liable for response costs even after the
    transfer. 42 U.S.C. § 9601(35)(C). The only prior owners who
    will not pay any cleanup costs are those who bought and sold the
    land with no knowledge that the land is contaminated.
    And our holding will not undermine the goal of facilitating
    the cleanup of potentially dangerous hazardous waste sites. Even
    if owners of previously contaminated land can evade liability by
    transferring the land, ample incentives remain to promote
    cleanup. See United States v. Petersen Sand and Gravel, Inc.,
    
    806 F. Supp. 1346
    , 1353 (N.D. Ill. 1992); Bronston, supra at 637-
    40. Present owners and operators remain strictly liable for
    the costs of cleanup, 42 U.S.C. § 9607(a)(1), as do some prior
    owners, 
    id. § 9607(a)(2),
    people who arranged for disposal, 
    id. § 9607(a)(3),
    and transporters of hazardous substances, 
    id. § 9607(a)(4).
    Moreover, a number of provisions ensure that
    contamination will be discovered and the fact of contamination
    disclosed if the land is transferred. CERCLA imposes criminal
    liability (including prison sentences) for failure to report a
    "release" of hazardous substances above a certain threshold. See42 U.S.C.
    § 9603. As mentioned, if an owner transfers land that
    it knows to be contaminated without disclosing the contamination,
    it remains liable even after the transfer. 42 U.S.C. §
    9601(35)(C). In addition, the innocent owner defense encourages
    potential buyers to investigate the possibility of contamination
    before a purchase. See 42 U.S.C. § 9601(35)(B) (in order to
    claim the innocent owner defense, a defendant must have
    undertaken all appropriate inquiry).
    Thus, for the reasons we have stated, we agree with the
    district court that HMAT cannot proceed on its "passive" theory
    of disposal: the movement of contaminants alleged here does not
    constitute "disposal." However, because we conclude that HMAT
    may proceed on its "active" theory of disposal, the issue to
    which we now turn, we will vacate the court's order granting
    summary judgment to Dowel on HMAT's CERCLA claim.
    III. Soil Investigation as Disposal
    Having concluded that passive migration does not constitute
    disposal, we now consider HMAT's other asserted basis of
    liability. HMAT argues that Dowel's soil investigation, which
    was meant to determine the land's ability to support
    construction, caused the mixing, shifting, and spreading of
    contaminants and that this constitutes disposal. Although the
    district court suggested that HMAT's evidence of spreading was
    "speculative," it did not resolve whether the evidence was
    sufficient to allow a factfinder to conclude that the drilling
    caused any subsurface mixing. Instead, the court concluded that
    even accepting HMAT's version of events, Dowel's drilling "fell
    short of that conduct accepted as being enough of a disturbance
    to constitute disposal." According to the district court, only
    "significant disturbance of already contaminated soil constitutes
    disposal."
    A. No Threshold to Disposal
    We disagree with the district court's reading of "disposal."
    Under 42 U.S.C. § 6903(3), "disposal" is defined in part as the
    "discharge" or "placing" of waste "into or on any land or water."
    "Disposal" thus includes not only the initial introduction of
    contaminants onto a property but also the spreading of
    contaminants due to subsequent activity. See Webster's, supra at
    644 (defining "discharge" in part as "to set at liberty,"
    "release from confinement, custody, or care," "pour forth," or
    "emit"); 
    id. at 1727
    (defining "place" in part as "cause to rest
    or lie"); Kaiser Aluminum & Chemical Corp. v. Catellus
    Development Corp., 
    976 F.2d 1338
    , 1342-43 (9th Cir. 1992)
    ("CERCLA's definition of 'disposal' expressly encompasses the
    'placing of any . . . hazardous waste . . . on any land.' 42
    U.S.C. § 6903(3). Congress did not limit the term to the initial
    introduction of hazardous material onto property."); Tanglewood
    East Homeowners v. Charles-Thomas, Inc., 
    849 F.2d 1568
    , 1573 (5th
    Cir. 1988) ("[T]his definition of disposal does not limit
    disposal to a one-time occurrence -- there may be other disposals
    when hazardous substances are moved, dispersed, or released
    during landfill excavations and fillings.").
    Although the cases cited above involved a greater
    disturbance of contaminants than that alleged here, the dispersal
    of contaminants need not reach a particular threshold level in
    order to constitute "disposal." "Disposal" consists of "the
    discharge . . . or placing of any solid waste or hazardous waste
    into or on any land or water." 42 U.S.C. § 6903(3) (emphasis
    added). There is no exception for de minimis disturbances. Cf.United
    States v. Alcan Aluminum Corp., 
    964 F.2d 252
    , 260 (3d Cir.
    1992) ("[C]ourts that have addressed this issue [whether the term
    "hazardous substance" includes any quantitative requirement] have
    almost uniformly held that CERCLA liability does not depend on
    the existence of a threshold quantity of a hazardous
    substance."). The fact that a defendant's dispersal of
    contaminants is trivial may provide a ground to allocate less
    liability to that defendant, but it is not a defense to
    liability.
    B. The Evidence
    The evidence presented by both parties shows that a genuine
    issue of material fact remains as to whether Dowel's drilling
    caused the dispersal of contaminants. HMAT presented the
    drilling logs and report of Thor Engineering, the firm that
    performed Dowel's soil test. According to these documents, Thor
    made nine drill borings twelve to eighteen feet into the ground
    and extracted columns of soil for study. The drill bored through
    garbage, miscellaneous fill from the dump, cinders, a black
    substance that appeared to be petroleum-based, and ground water.
    The documents show that al least three of the holes "caved"
    during drilling. App. 120.
    HMAT also submitted an affidavit from Laura Truettner, an
    expert environmental consultant, which asserted that Dowel's
    drilling spread contamination. First, because Thor's logs show
    that the drill encountered waste materials, natural soil, and
    groundwater, and that several boreholes "caved," Truettner
    concludes that mixing of these materials occurred. Second,
    Thor's report and logs show no evidence that the drilling
    equipment was decontaminated between boreholes and before the
    equipment was moved from the landfill. Thus, Truettner
    maintains, it is probable that contaminated material was spread
    between boreholes and along roads used for access by the drilling
    equipment.
    Dowel, in response, submitted an affidavit from Peter
    Wilner, the principal of Thor Engineering. Wilner states that he
    personally directed and oversaw the drilling at issue. He
    asserts that "no drills were used; no 'cuttings' were generated;
    no soils or other materials were in any way spread around the
    premises; and no holes were left open, allowing for any
    infiltration of foreign materials." He also claims that "The
    'open' boring method used for the . . . borings performed at the
    Premises does not cause the underground mixing or shifting of
    subsurface materials."
    HMAT then submitted another affidavit from Truettner.
    Truettner contends that Wilner's affidavit contains misleading
    statements and directly contradicts the contemporaneous record of
    the drilling. She first casts doubt on Wilner's claim that he
    was present during the drilling, pointing out that the drilling
    logs indicate the presence of several people but make no mention
    of Wilner. She represents that it is industry practice to list
    all representatives at the site during the drilling.
    Truettner then states that, although Wilner's statement that
    no drills were used is technically correct because a "split spoon
    sampler" was used, the distinction is irrelevant: materials were
    disturbed and a hole was created. According to Truettner, "anytype of
    sampling activity generates cuttings because the split
    spoon sampler knocks material off the borehole walls."
    Furthermore, Truettner attacks the implications of Wilner's
    statement that no holes were left open. According to Truettner,
    in order for the holes to have been closed one of three things
    would have had to occur: (1) the holes were filled with material
    brought from off-site; (2) they were filled with material from
    the site itself; or (3) they were allowed to collapse in on
    themselves. Truettner contends that the first scenario is
    unlikely in light of the documentary evidence: the cost estimate
    of the drilling does not reflect the costs of fill material and
    labor. And, if either of the other two scenarios occurred, the
    act of filling the holes would cause mixing of materials on the
    property.
    Finally, Truettner asserts that Wilner's statement that
    Thor's boring method does not cause mixing of subsurface of
    material is contradicted by the drilling logs, which show that at
    least three of the holes "caved." "The process of caving,"
    Truettner states, "will absolutely cause the mixing and shifting
    of subsurface materials."
    Given this evidence, a genuine dispute remains as to whether
    Dowel's drilling caused the dispersal of contaminants. A factual
    dispute is genuine if the evidence is such that a reasonable
    factfinder could find in favor the nonmoving party. Anderson v.
    Liberty Lobby, Inc., 
    477 U.S. 242
    , 248 (1986). HMAT's evidence
    that Thor's equipment went through waste, soil, and groundwater
    and that several boreholes "caved", in combination with its
    expert's opinion, is sufficient to support a finding that a
    dispersal of contaminants occurred. Dowel's evidence, that
    despite the contact between its equipment, waste, soil, and
    groundwater, its boring method caused no mixing, is sufficient to
    support the opposite finding. Thus summary judgment in favor of
    either party is inappropriate.
    C. Soil Investigation
    As we have explained, HMAT has identified evidence from
    which a factfinder could conclude that Dowel has caused a
    dispersal of contaminants. Ordinarily, that would be sufficient
    to submit the question of whether a "disposal" occurred to a
    factfinder. However, this is not an ordinary case: the alleged
    act of disposal consists of a soil investigation, and CERCLA
    clearly contemplates that some soil investigation be allowed to
    examine contaminated property. Thus, it is not enough for a
    plaintiff to show that a soil investigation has caused the spread
    of contaminants. Rather, we conclude that in order to establish
    that "disposal" has occurred based on a soil investigation, a
    plaintiff must also show that the investigation was conducted
    negligently.
    CERCLA's innocent owner defense encourages prospective
    property buyers to conduct soil investigations. The innocent
    owner defense requires, inter alia, that "[a]t the time the
    defendant acquired the facility the defendant did not know and
    had no reason to know that any hazardous substance which is the
    subject of the release or threatened release was disposed of on,
    in, or at the facility." 42 U.S.C. § 9601(35)(A)(i) (emphasis
    added). CERCLA provides explicit guidance on how a defendant is
    to establish that it had "no reason to know" of a prior disposal:
    To establish that the defendant had no reason to
    know . . . the defendant must have undertaken, at the
    time of acquisition, all appropriate inquiry into the
    previous ownership and uses of the property consistent
    with good commercial or customary practice in an effort
    to minimize liability. For purposes of the preceding
    sentence the court shall take into account any
    specialized knowledge or experience on the part of the
    defendant, the relationship of the purchase price to
    the value of the property if uncontaminated, commonly
    known or reasonably ascertainable information about the
    property, the obviousness of the presence or likely
    presence of contamination at the property, and the
    ability to detect such contamination by appropriate
    inspection.
    
    Id. § 9601(35)(b).
    CERCLA thus contemplates that prospective
    purchasers "undertake[] . . . all appropriate inquiry" and will
    engage in "appropriate inspection."
    In order to give effect to the innocent owner defense and
    its requirement that prospective purchasers engage in appropriate
    inquiry and inspection, an "appropriate" soil investigation
    cannot itself trigger CERCLA liability. Otherwise, prospective
    purchasers who by diligently inspecting for contamination cause
    the dispersal of any contaminants will find themselves liable for
    causing a "disposal." And the innocent owner defense would offer
    such prospective purchasers no protection: if they buy the
    property after discovering contamination, they will be ineligible
    for the defense because they will not be "innocent" (i.e., they
    will "know and ha[ve] reason to know" of a prior disposal, 
    id. § 9601(35));
    if they do not buy the property, they will be
    ineligible for the defense because they will not be "owners"
    (i.e., they will not have "acquired the facility" as required by
    42 U.S.C. § 9601(35)(A)). In order to give the defense effect,
    then, an "appropriate" soil investigation cannot constitute
    disposal.
    But a party cannot escape liability for performing a soil
    investigation negligently and thereby unnecessarily spreading
    pollution. Several CERCLA provisions suggest that persons
    otherwise insulated from CERCLA liability may nonetheless become
    liable if they act negligently. In order to take advantage of a
    third-party defense (i.e., that a release was caused solely by a
    third party), a defendant must show that "he exercised due care
    with respect to the hazardous substance concerned, taking into
    consideration the characteristics of such hazardous substance, in
    light of all relevant facts and circumstances." 42 U.S.C. §
    9607(b)(3)(a). And another provision, 42 U.S.C. § 9607(d)(1),
    insulates from liability actions consistent with the National
    Contingency Plan unless they are negligently performed:
    [N]o person shall be liable under this subchapter for
    costs or damages as a result of rendering care,
    assistance, or advice in accordance with the National
    Contingency Plan ("NCP") or at the direction of an
    onscene coordinator appointed under such a plan, with
    respect to an incident creating a danger to public
    health or welfare or the environment as a result of any
    releases of a hazardous substance or threat thereof.
    This paragraph shall not preclude liability for costs
    or damages as the result of negligence on the part of
    such person.
    42 U.S.C. § 9697(D)(1). These provisions are themselves
    inapplicable to the issue at hand. However, they express a
    useful principle for determining when an action that is exempted
    from liability becomes so inconsistent with CERCLA's purposes
    that it is no longer so insulated, and this informs our judgment.
    We conclude that only "appropriate" soil investigations -- i.e.,
    those that do not negligently spread contamination -- fall
    outside the definition of "disposal." Such a rule best
    harmonizes CERCLA's clear intention to allow soil investigations
    and its goal of remedying hazardous waste sites.
    We recognize that the soil investigation at issue here was
    not meant to discover the presence of contamination but was aimed
    at assessing the land's ability to support construction.
    However, we conclude that the purpose of the investigation is
    irrelevant. Determining the motive of the investigating party
    seems a costly and difficult inquiry. Moreover, we do not wish
    to deter the productive use of property by discouraging soil
    investigations aimed at assessing development possibilities.
    In addition to applying the wrong test of "disposal," the
    district court did not focus on whether Dowel's soil testing was
    negligently performed, and we believe that the parties should
    have a chance to add to the record on this issue. Therefore, we
    will vacate the district court's order dismissing HMAT's CERCLA
    claim and remand for further proceedings.
    IV. Conclusion
    For the foregoing reasons, the passive spreading of
    contamination in a landfill does not constitute "disposal" under
    CERCLA. Soil testing that disperses contaminants, however, may
    constitute "disposal" and HMAT has identified evidence that would
    justify a factfinder's conclusion that contaminants were
    dispersed in Dowel's testing. Nevertheless, because CERCLA
    contemplates that some soil investigation be allowed, HMAT must
    show not only that the soil investigation caused the spread of
    contaminants but also that the investigation was conducted
    negligently. The judgment of the district court will therefore
    be vacated and the case remanded for further proceedings
    consistent with this opinion.