Matter of Bell Petroleum Services, Inc. ( 1993 )


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  •                     UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    _____________________
    No. 91-8080
    _____________________
    IN THE MATTER OF:    BELL PETROLEUM SERVICES,
    INC.,
    Debtor.
    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY,
    Appellee,
    versus
    SEQUA CORPORATION AND CHROMALLOY AMERICAN
    CORP.,
    Appellants.
    ______________________
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    versus
    BELL PETROLEUM SERVICES, INC., REGAL
    INTERNATIONAL, INC. and JOHN R. LEIGH,
    Defendants,
    SEQUA CORPORATION and CHROMALLOY AMERICAN
    CORP.,
    Defendants-Appellants.
    _________________________________________________________________
    Appeals from the United States District Court for the
    Western District of Texas
    _________________________________________________________________
    September 28, 1993
    Before JOLLY and DUHÉ, Circuit Judges, and PARKER*, District Judge.
    *
    Chief Judge of the Eastern District of Texas, sitting by
    designation.
    E. GRADY JOLLY, Circuit Judge:
    The Environmental Protection Agency (EPA) seeks to recover its
    response costs under the Comprehensive Environmental Response,
    Compensation and Liability Act (CERCLA) because of a discharge of
    chromium waste that contaminated a local water supply.                  Sequa
    Corporation appeals from the imposition of joint and several
    liability, challenges the EPA's decision to provide an alternate
    water supply system to the area in which the groundwater was
    contaminated   by    the   chromium       discharge,   and   contests     the
    calculation of prejudgment interest and the application of the
    proceeds of the EPA's settlement with its co-defendants.                   We
    REVERSE the portion of the judgment imposing joint and several
    liability, and REMAND for further proceedings.            Our review of the
    administrative record has convinced us that the EPA's decision to
    provide an alternate water supply was arbitrary and capricious;
    accordingly,   we   REVERSE   the   portion    of   the   district   court's
    judgment allowing the EPA to recover the costs of designing and
    constructing that system, and REMAND for deletion of those amounts
    and recalculating prejudgment interest.1
    I
    In 1978, a citizen in the Odessa, Texas area complained about
    discolored drinking water. The Texas Water Commission conducted an
    investigation. It ultimately focused on a chrome-plating shop that
    1
    Sequa also appealed an award of sanctions against it, but
    advised us after oral argument that the matter had been resolved.
    -2-
    was operated successively from 1971 through 1977 by John Leigh,
    Western Pollution Control Corporation (hereinafter referred to as
    Bell), and Woolley Tool Division of Chromalloy American Corporation
    (which later merged with Sequa), at 4318 Brazos Street, just
    outside the city limits of Odessa.       The investigation showed that
    during the chrome-plating process, finished parts were rinsed, and
    the rinse water was pumped out of the building onto the ground.
    In 1984, the EPA designated a 24-block area north of the
    Brazos Street facility as a Superfund site--"Odessa Chromium I."
    It authorized a response action pursuant to its authority under
    CERCLA § 104, 42 U.S.C. § 9604, and entered into a cooperative
    agreement with the State of Texas.         The State was to perform a
    remedial investigation, feasibility study, and remedial design work
    for the site, with the EPA reimbursing the State for ninety percent
    of the costs. The remedial investigation revealed that the Trinity
    Aquifer, the only source of groundwater in the area, contained
    elevated concentrations of chromium.2
    A "focused" feasibility study (FFS) was undertaken to evaluate
    the need to provide an alternative water supply pending completion
    of   the     remaining   portion   of    the   feasibility   study   and
    implementation of final remedial action.3       The FFS concluded that
    2
    Chromium is a "hazardous substance" as defined in CERCLA.        42
    U.S.C. § 9601(14).
    3
    The EPA estimated that a final remedy would be in place in
    10-15 years.     A "remaining portion" feasibility study was
    conducted, and the EPA selected a final remedial action in March
    -3-
    the City of Odessa's water system should be extended to provide
    service in the Odessa Chromium I area.        On September 8, 1986, the
    EPA Regional Administrator issued a Record of Decision (ROD),
    finding that city water service should be extended to the site.
    Pursuant to the cooperative agreement, the State, through its
    contractor,    designed   and   constructed    the   system,   which   was
    completed in 1988.
    II
    In December 1988, the EPA filed a CERCLA cost-recovery action
    against Bell, Sequa, and John Leigh, which was consolidated with an
    adversary proceeding the EPA had filed against Bell in Bell's
    bankruptcy case.     The EPA sought to recover direct and indirect
    costs it incurred in studying, designing, and constructing the
    alternate water supply system.
    In July 1989, the district court entered a case management
    order providing that the case would be decided in three phases:
    Phase I--liability, Phase II--recoverability of the EPA's response
    costs, and Phase III--"responsibility."         In September 1989, the
    district court granted in part, and denied in part, the EPA's
    motion for summary judgment as to liability.          In its memorandum
    opinion, it stated that the relative culpability of the parties and
    the "divisibility of liability" issues would be decided during
    Phase III.    Although the district court ruled that CERCLA did not
    1988.   Those activities are not at issue in this appeal.
    -4-
    require the EPA to prove causation, it held an evidentiary hearing
    and made alternative findings and conclusions addressing causation,
    holding that "Leigh, Bell and Sequa caused the contamination."4           In
    March 1990,   the   district   court    granted   the   EPA's   motion   for
    clarification of the September 1989 summary judgment, holding that
    its previous opinion had provided that the defendants were jointly
    and severally liable. It also entered a declaratory judgment as to
    the defendants' liability for future response costs.
    The Phase II proceeding on recoverability of response costs
    was handled through cross-motions for summary judgment.                  The
    district court held that the defendants had not met their burden of
    proving that the EPA's decision to implement an alternate water
    supply was arbitrary and capricious, and held that they were liable
    4
    Approximately a month after the district court entered its
    findings of fact and conclusions of law on causation, our court
    decided Amoco Oil Co. v. Borden, Inc., 
    889 F.2d 664
    (5th Cir.
    1989).    In Amoco, we noted that, "in cases involving multiple
    sources of contamination, a plaintiff need not prove a specific
    causal link between costs incurred and an individual generator's
    waste." 
    Id. at 670
    n.8. Other courts have likewise concluded that
    proof of causation is not required in CERCLA cases. E.g., United
    States v. Alcan Aluminum Corp. (Alcan-PAS), 
    990 F.2d 711
    , 721 (2d
    Cir. 1993) (the government is not required to "show that a specific
    defendant's waste caused incurrence of clean-up costs"); United
    States v. Alcan Aluminum Corp. (Alcan-Butler), 
    964 F.2d 252
    , 266
    (3d Cir. 1992) ("the Government must simply prove that the
    defendant's hazardous substances were deposited at the site from
    which there was a release and that the release caused the
    incurrence of response costs"); United States v. Monsanto Co., 
    858 F.2d 160
    , 170 (4th Cir. 1988) (liability is subject only to the
    causation-based affirmative defenses set forth in CERCLA § 107(b);
    "Congress has, therefore, allocated the burden of disproving
    causation to the defendant who profited from the generation and
    inexpensive disposal of hazardous waste.").
    -5-
    for the EPA's direct and indirect response costs, plus prejudgment
    interest from the date such costs were incurred.
    On March 2, 1990, the EPA sought approval of a proposed
    consent decree, in which it settled its claims against Bell for all
    costs, past and future, for $1,000,000.      Sequa objected to the
    settlement, contending that Bell was not being required to pay its
    fair share.      The district court granted Sequa's request for a
    hearing on the fairness of the proposed consent decree, and entered
    an order providing that a Phase III hearing regarding apportionment
    of liability was to be conducted before it ruled on the motion for
    entry of the consent decree.    In response to the EPA's motion for
    clarification of the scope of the hearing, the court ruled that the
    hearing would be limited to determining the relative contributions
    of Bell, Sequa, and Leigh to the contamination.    After the Phase
    III hearing in June 1990, Sequa filed a motion for reconsideration
    on the issue of joint and several liability.       On July 24, the
    district court denied that motion, and approved the consent decree.
    It held that the evidence at the Phase I and Phase III hearings
    demonstrated that there was no method of dividing the liability
    among the defendants which would rise to any level above mere
    speculation, because each of the proposed apportionment methods
    involved a significant assumption factor, inasmuch as records had
    been lost, and because each of the apportionment methods differed
    significantly.     In the alternative, it concluded that, based on
    -6-
    equitable factors, responsibility should be divided as follows:
    Bell--35%; Sequa--35%; and Leigh--30%.
    In   December   1990,    the   district   court   entered   an   order
    approving another consent decree, pursuant to which the EPA settled
    its claims against Leigh for past and future costs--for $100,000.
    In sum, the district court held that Sequa is jointly and
    severally   liable   for     $1,866,904.19,    including   the   costs   of
    studying, designing, and constructing the alternate water supply
    system. In addition, Sequa is jointly and severally liable for all
    future costs incurred by the EPA in studying, designing, and
    implementing a permanent remedy.5
    III
    Statutory Background
    CERCLA was enacted in 1980, and amended in 1986 by the
    Superfund Amendments and Reauthorization Act (SARA).         Its purpose
    is to facilitate the prompt clean-up of hazardous waste sites.
    See, e.g., United States v. R. W. Meyer, Inc., 
    889 F.2d 1497
    , 1500
    (6th Cir. 1989).     CERCLA § 104, 42 U.S.C. § 9604, authorizes the
    President (who has delegated most of his authority under CERCLA to
    the EPA) to use Superfund money to respond to any threatened or
    actual release of any hazardous substance that may pose an imminent
    and substantial public health threat.          CERCLA § 107, 42 U.S.C. §
    5
    Although the costs of final remedial action are not at issue
    in this appeal, we note that the settlements with Bell and Leigh
    encompassed those costs.
    -7-
    9607, provides for the recovery of response costs from all persons
    responsible for the release of a hazardous substance.                   Response
    actions include both "remedial" and "removal" actions.                   Removal
    actions generally are immediate or interim responses, and remedial
    actions    generally    are    permanent        responses.     See      Voluntary
    Purchasing, Inc. v. Reilly, 
    889 F.2d 1380
    , 1382 n.4 (5th Cir.
    1989).
    The National Contingency Plan ("NCP"), 40 C.F.R. Part 300,
    promulgated by the EPA as mandated by CERCLA § 105, 42 U.S.C. §
    9605, guides federal and state response activities.                      The NCP
    identifies methods for investigating the environmental and health
    problems   resulting    from    a    release     or   threatened   release   and
    criteria   for    determining       the    appropriate   extent    of   response
    activities.      See Daigle v. Shell Oil Co., 
    972 F.2d 1527
    , 1533 n.4
    (10th Cir. 1992); United States v. R. W. Meyer, 
    Inc., 889 F.2d at 1500
    .
    IV
    Joint and Several Liability
    Since CERCLA's enactment, the federal courts have struggled to
    resolve the complicated, often confusing, questions posed by the
    concept of joint and several liability, and its application under
    a statute whose provisions are silent with respect to the scope of
    liability, but whose legislative history is clear that common law
    -8-
    principles of joint and several liability may affect liability.6
    The issue is one of first impression in this Circuit.
    A
    Common Law:   The Restatement of Torts
    Although joint and several liability is commonly imposed in
    CERCLA cases,7 it is not mandatory in all such cases.             United
    States v. Monsanto 
    Co., 858 F.2d at 171
    .             Instead, Congress
    intended that the federal courts determine the scope of liability
    in   CERCLA   cases   under   traditional   and   evolving   common   law
    6
    For a discussion of the legislative history regarding the
    deletion of joint and several liability provisions from the statute
    prior to its enactment, see United States v. Chem-Dyne Corp., 
    572 F. Supp. 802
    (S.D. Ohio 1983); United States v. A & F Materials
    Co., Inc., 
    578 F. Supp. 1249
    (S.D. Ill. 1984); and Colorado v.
    Asarco, Inc., 
    608 F. Supp. 1484
    (D. Col. 1985).
    7
    Many of the cases in which joint and several liability has
    been imposed involve hazardous waste sites at which numerous
    substances have been commingled.     See, e.g., United States v.
    Stringfellow, 
    661 F. Supp. 1053
    , 10609 (C.D. Cal. 1987); United
    States v. South Carolina Recycling & Disposal, Inc., 
    653 F. Supp. 984
    , 994 (D.S.C. 1986), aff'd in part & vacated in part, United
    States v. Monsanto Co., 
    858 F.2d 160
    (4th Cir. 1988); United States
    v. Ottati & Goss, Inc., 
    630 F. Supp. 1361
    , 1396 (D.N.H. 1985). In
    such cases, determining the contribution of each cause to a single
    harm will often require a very complex assessment of the relative
    toxicity, migratory potential, and synergistic capacity of the
    hazardous wastes at issue. See 
    Monsanto, 858 F.2d at 172
    & n.26.
    Under such circumstances, it is hardly surprising that defendants
    have had difficulty in meeting their burden of proving that
    apportionment is feasible. See O'Neil v. Picillo, 
    883 F.2d 176
    ,
    178-79 (1st Cir. 1989) ("The practical effect of placing the burden
    on defendants has been that responsible parties rarely escape joint
    and several liability, courts regularly finding that where wastes
    of varying (and unknown) degrees of toxicity and migratory
    potential commingle, it simply is impossible to determine the
    amount of environmental harm caused by each party."), cert. denied,
    
    493 U.S. 1071
    (1990).
    -9-
    principles, guided by the Restatement (Second) of Torts.      Alcan-
    
    Butler, 964 F.2d at 268
    ; O'Neil v. 
    Picillo, 883 F.2d at 178
    ; Allied
    Corp. v. Acme Solvents Reclaiming, Inc., 
    691 F. Supp. 1100
    , 1116
    (N.D. Ill. 1988); 
    Chem-Dyne, 572 F. Supp. at 810
    .
    Section 433 of the Restatement provides that:
    (1) Damages for harm are to be apportioned
    among two or more causes where
    (a) there are distinct harms, or
    (b) there is a reasonable basis for
    determining the contribution of each cause to
    a single harm.
    (2) Damages for any other harm        cannot   be
    apportioned among two or more causes.
    Restatement (Second) of Torts, § 433A.
    The nature of the harm is the key factor in determining
    whether apportionment is appropriate.    Distinct harms--e.g., where
    two defendants independently shoot the plaintiff at the same time,
    one wounding him in the arm and the other wounding him in the
    leg--are regarded as separate injuries.       Although some of the
    elements of damages (such as lost wages or pain and suffering) may
    be difficult to apportion, "it is still possible, as a logical,
    reasonable, and practical matter, ... to make a rough estimate
    which will fairly apportion such subsidiary elements of damages."
    
    Id., comment b
    on subsection (1).
    The Restatement also discusses "successive" harms, such as
    when "two defendants, independently operating the same plant,
    pollute a stream over successive periods of time."    
    Id., comment c
    -10-
    on subsection (1).        Apportionment is appropriate, because "it is
    clear that each has caused a separate amount of harm, limited in
    time, and that neither has any responsibility for the harm caused
    by the other."     
    Id. The final
    situation discussed by the Restatement in which
    apportionment     is     available    involves    a   single    harm       that   is
    "divisible"--perhaps        the   most    difficult     type     of    harm       to
    conceptualize.      Such harm, "while not so clearly marked out as
    severable into distinct parts, [is] still capable of division upon
    a reasonable and rational basis, and of fair apportionment among
    the causes responsible....           Where such apportionment can be made
    without injustice to any of the parties, the court may require it
    to be made."     
    Id., comment d
    on subsection (1).             Two examples of
    such harm are described in the comment.            The first is where cattle
    owned by two or more persons trespass upon the plaintiff's land and
    destroy   his   crops.       Although    "the    aggregate   harm     is    a   lost
    crop, ... it may nevertheless be apportioned among the owners of
    the cattle, on the basis of the number owned by each, and the
    reasonable      assumption     that     the     respective     harm    done       is
    proportionate to that number."           
    Id. The second
    example involves
    pollution of a stream by two or more factories.                     There, "the
    interference with the plaintiff's use of the water may be treated
    as divisible in terms of degree, and may be apportioned among the
    -11-
    owners of the factories, on the basis of evidence of the respective
    quantities of pollution discharged into the stream."       Id.8
    Apportionment is inappropriate for other kinds of harm, which,
    "by their very nature, are normally incapable of any logical,
    reasonable, or practical division."       
    Id., comment on
    subsection
    (2).     Examples of such harm are death, a single wound, the
    destruction of a house by fire, or the sinking of a barge.        "Where
    two or more causes combine to produce such a single result,
    incapable of division on any logical or reasonable basis, and each
    is a substantial factor in bringing about the harm, the courts have
    refused to make an arbitrary apportionment for its own sake, and
    each of the causes is charged with responsibility for the entire
    harm."    
    Id. Apportionment is
    also inappropriate in what the Restatement
    describes as "exceptional" cases, "in which injustice to the
    plaintiff may result."     
    Id., comment h
    on subsection (1).        For
    example, "one of two tortfeasors [may be] so hopelessly insolvent
    that the plaintiff will never be able to collect from him the share
    of the damages allocated to him."       
    Id. Where the
    court deems it
    unjust to require the innocent plaintiff to bear the risk of one of
    8
    The Restatement points out that apportionment also is
    appropriate where part of the harm is the result of an innocent
    cause, 
    id., comment e
    on subsection (1), or where the plaintiff is
    responsible for a portion of the harm.         
    Id., comment f
    on
    subsection (1).
    -12-
    the tortfeasors' insolvency, it may refuse to apportion damages in
    such a case.    
    Id. In sum,
    the nature of the harm is the determining factor with
    respect to whether apportionment is appropriate.               Ultimately, the
    decision whether to impose joint and several liability turns on
    whether there is a reasonable and just method for determining the
    amount of harm that was caused by each defendant (or, in some
    cases, by an innocent cause or by the fault of the plaintiff).                The
    question    whether     the     harm   to   the    plaintiff   is   capable    of
    apportionment among two or more causes is a question of law.
    Restatement (Second) of Torts, § 434(1)(b).                  Once it has been
    determined that the harm is capable of being apportioned among the
    various causes of it, the actual apportionment of damages is a
    question of fact.       
    Id., § 434(2)(b)
    & comment d.
    Section 433B of the Restatement sets forth the burdens of
    proof.     As a general rule, the plaintiff must prove that the
    defendant's tortious conduct caused the harm.               
    Id., § 433B(1).
       As
    we have already noted, however, this rule does not apply in CERCLA
    cases. See note 
    4, supra
    .         Nevertheless, subsection (2) of § 433B,
    which    sets   forth     the     burdens     of    proof    with   respect    to
    apportionment, does apply and provides as follows:
    Where the tortious conduct of two or more actors
    has combined to bring about harm to the plaintiff,
    and one or more of the actors seeks to limit his
    liability on the ground that the harm is capable of
    apportionment among them, the burden of proof as to
    the apportionment is upon each such actor.
    -13-
    As explained in the comment, this rule applies only to "a proved
    wrongdoer who has in fact caused harm to the plaintiff."              
    Id., comment d
    on subsection (2).        Thus, the rule stated in subsection
    (2) will not permit a defendant to escape liability altogether, but
    only to limit its liability, if it can meet its burden of proving
    the amount of the harm that it caused.          If it is unable to do so,
    it is liable for the full amount of the harm.            According to the
    Restatement, the typical case to which this rule applies "is the
    pollution of a stream by a number of factories which discharge
    impurities into it."       
    Id., comment c
    on subsection (2).
    Comment e notes that there is a possibility that the rule
    stated   in   subsection    (2)   may   cause   disproportionate   harm   to
    defendants where each of a large number of them contributes a
    relatively small and insignificant part to the total harm.                For
    example, "if a hundred factories each contribute a small, but still
    uncertain, amount of pollution to a stream, to hold each of them
    liable for the entire damage because he cannot show the amount of
    his contribution may perhaps be unjust."              
    Id., comment e
    on
    subsection (2). The comment, however, expresses no conclusion with
    respect to the applicability of this illustration, noting that such
    a case had not arisen.
    CERCLA is a strict liability statute, one of the purposes of
    which is to shift the cost of cleaning up environmental harm from
    the taxpayers to the parties who benefited from the disposal of the
    wastes that caused the harm.       See, e.g., Chem-Dyne, 572 F. Supp. at
    -14-
    805-06.    "The improper disposal or release of hazardous substances
    is an enormous and complex problem of national magnitude involving
    uniquely federal interests."        
    Id. at 808.
       Often, liability is
    imposed upon entities for conduct predating the enactment of
    CERCLA, and even for conduct that was not illegal, unethical, or
    immoral at the time it occurred.         We recognize the importance of
    keeping these facts in mind when attempting to develop a uniform
    federal common law for CERCLA cases.        We also recognize, however,
    that CERCLA, as a strict liability statute that will not listen to
    pleas of "no fault," can be terribly unfair in certain instances in
    which parties may be required to pay huge amounts for damages to
    which their acts did not contribute.          Congress recognized such
    possibilities and left it to the courts to fashion some rules that
    will,     in   appropriate   instances,    ameliorate    this   harshness.
    Accordingly, Congress has suggested, and we agree, that common-law
    principles of tort liability set forth in the Restatement provide
    sound guidance.     In applying those principles to this CERCLA case,
    we think that it will be helpful to examine briefly some of the
    relevant CERCLA jurisprudence.
    B
    The Jurisprudence
    The first published case to address the scope of liability
    under CERCLA is United States v. Chem-Dyne Corp., 
    572 F. Supp. 802
    (S.D. Ohio 1983), which was cited approvingly in the legislative
    history of the SARA amendments to CERCLA.               In that case, 24
    -15-
    defendants,   who   allegedly   generated   or    transported   hazardous
    substances located at Chem-Dyne's treatment facility, sought "an
    early determination" that they were not jointly and severally
    liable for the EPA's response costs.     
    Id. at 804.
       After examining
    the statute and its legislative history, the court concluded that
    provisions for joint and several liability were deleted from CERCLA
    "in order to avoid its universal application to inappropriate
    circumstances."     
    Id. at 810.
       It relied on the Restatement for
    guidance in applying federal common law.         
    Id. The court
    described the nature of the "fairly complex factual
    determination" involved in deciding whether the defendants were
    jointly and severally liable as follows:
    The Chem-Dyne facility contains a variety of
    hazardous   waste    from    289   generators    or
    transporters, consisting of about 608,000 pounds of
    material. Some of the wastes have commingled but
    the identities of the sources of these wastes
    remain unascertained. The fact of the mixing of
    the wastes raises an issue as to the divisibility
    of the harm. Further, a dispute exists over which
    of the wastes have contaminated the ground water,
    the degree of their migration and concomitant
    health hazard. Finally, the volume of waste of a
    particular generator is not an accurate predictor
    of the risk associated with the waste because the
    toxicity or migratory potential of a particular
    hazardous substance generally varies independently
    with the volume of the waste.
    
    Id. at 811.
      The court concluded that the defendants had not met
    their burden of demonstrating the divisibility of the harm and the
    degree to which each was responsible, and denied their motion for
    summary judgment.    
    Id. -16- United
    States v. Ottati & Goss, Inc., 
    630 F. Supp. 1361
    (D.N.H. 1988), was a cost recovery action against operators and
    former   operators    of   drum   reconditioning   businesses,   property
    owners, and generators of wastes contained in the drums that were
    sent to the site for reconditioning.            The evidence showed that
    chemical substances leaked or spilled from drums and were mixed
    together.    Although the generators satisfied their burden of
    proving approximately how many drums each brought to the site, the
    court nevertheless imposed joint and several liability, because
    "the exact amount or quantity of deleterious chemicals or other
    noxious matter [could not] be pinpointed for as to each defendant[,
    and] [t]he resulting proportionate harm to surface and groundwater
    [could not] be proportioned with any degree of accuracy as to each
    individual defendant."      
    Id. at 1396.
    A similar situation existed in O'Neil v. Picillo, 
    883 F.2d 176
    (1st Cir. 1989).     The site at issue there was a Rhode Island pig
    farm that had been used as a waste disposal site.           The site was
    described as having "massive trenches and pits ``filled with free-
    flowing, multi-colored, pungent liquid wastes' and thousands of
    ``dented and corroded drums containing a veritable potpourri of
    toxic fluids.'"      
    Id. at 177.
        The defendants argued that it was
    possible to apportion the removal costs, because there was evidence
    of the total number of barrels excavated during each phase of the
    clean-up, the number of barrels in each phase attributable to them,
    and the cost of each phase.       
    Id. at 181.
      There was testimony that,
    -17-
    of the approximately 10,000 barrels excavated, only 300-400 could
    be attributable to a particular defendant.               
    Id. at 182.
      The court
    concluded that because most of the waste could not be identified,
    and   the    defendants   had     the     burden    of    accounting   for    the
    uncertainty, the imposition of joint and several liability was
    appropriate.9
    On the other hand, the Third Circuit reversed a summary
    judgment in favor of the EPA, and remanded the case for further
    factual development on the scope of liability, in United States v.
    Alcan Aluminum Corp. (Alcan-Butler), 
    964 F.2d 252
    , 255 (3d Cir.
    1992).      This case involved the Butler Tunnel Site, a network of
    approximately five square miles of underground mines, tunnels,
    caverns, pools, and waterways, drained by the Butler Tunnel into
    the Susquehanna River in Pennsylvania.             During the 1970s, millions
    of gallons of liquid wastes containing hazardous substances were
    disposed of through a borehole that led directly into the mine
    workings.      In 1985, 100,000 gallons of contaminated water were
    released from the site into the river.
    The    government   filed    a    cost-recovery      action   against   20
    defendants; all but Alcan settled.             The district court granted
    9
    The court noted that, even if there had been evidence of the
    number of barrels attributable to each defendant, more would be
    required to demonstrate that the removal costs were capable of
    apportionment, because the cost of removing barrels varied
    depending upon their contents. Furthermore, the costs of removing
    contaminated soil, in which the wastes had commingled, "would
    necessarily be arbitrary." 
    Id. at 183
    n.11.
    -18-
    summary judgment for the government, holding that Alcan was jointly
    and severally liable for the response costs.           The Third Circuit
    held that the "intensely factual nature of the ``divisibility'
    issue" highlighted the district court's error in granting summary
    judgment without conducting a hearing.        
    Id. at 269.
       It remanded
    the case in order to give Alcan the opportunity to limit or avoid
    liability by attempting to prove its personal contribution to the
    harm to the Susquehanna River.       Thus, under the Third Circuit's
    approach, Alcan could escape liability altogether if it could prove
    that its "emulsion did not or could not, when mixed with other
    hazardous wastes, contribute to the release and the resultant
    response costs."    
    Id. at 270.
    The   Third   Circuit   noted   that   the   analysis   involved   in
    apportioning several liability is similar to that involved in
    apportioning damages among jointly and severally liable defendants
    in an action for contribution, because both focus on what harm was
    caused by the defendant.     
    Id. at 270
    n.29.     However, it stated that
    the issue of joint and several liability should be resolved at the
    initial liability stage, rather than at the contribution stage.10
    It noted that drastic consequences could result from delaying that
    determination, because "a defendant could easily be strong-armed
    10
    Because contribution is only available among jointly and
    severally liable tortfeasors, the imposition of several liability
    for all defendants would obviate the necessity for a contribution
    phase. See, e.g., Environmental Transportation Systems, Inc. v.
    Ensco, Inc., 
    969 F.2d 503
    , 508 (7th Cir. 1992).
    -19-
    into settling where other defendants have settled in order to avoid
    being held liable for the remainder of the response costs."              
    Id. It also
    noted   that   contribution   would   not   be   available   from
    settling defendants, pursuant to CERCLA § 113(f)(2).11          
    Id. The Second
    Circuit essentially adopted the Third Circuit's
    approach to joint and several liability in another case involving
    Alcan, United States v. Alcan Aluminum Corp. (Alcan-PAS), 
    990 F.2d 711
    (2d Cir. 1993).        That case involved a waste disposal and
    treatment center operated during the 1970s by Pollution Abatement
    Services (PAS).     Alcan used PAS for the disposal or treatment of
    4.6 million gallons of oil emulsion.         The government brought a
    cost-recovery action against 83 defendants.            As in Alcan-Butler,
    all of the defendants except Alcan settled.            The Second Circuit
    reversed a summary judgment in favor of the government, stating
    that "Alcan should have the opportunity to show that the harm
    caused at PAS was capable of reasonable apportionment."               
    Id. at 722.
    It held that Alcan was entitled to "present evidence relevant
    to establishing divisibility of harm, such as, proof disclosing the
    relative toxicity, migratory potential, degree of migration, and
    synergistic capacities of the hazardous substances at the site."
    
    Id. 11 That
    section provides that "[a] person who has resolved its
    liability to the United States in an administrative or judicially
    approved settlement shall not be liable for claims for contribution
    regarding matters addressed in the settlement."        42 U.S.C. §
    9613(f)(2).
    -20-
    The court stated that Alcan could escape liability if it could
    prove that its oil emulsion, when mixed with other hazardous
    wastes, did not contribute to the release and resulting clean-up
    costs.    It acknowledged that "causation is being brought back into
    the case--through the backdoor, after being denied entry at the
    frontdoor--at the apportionment stage."               
    Id. However, it
    pointed
    out that causation was "reintroduced only to permit a defendant to
    escape payment where its pollutants did not contribute more than
    background contamination and also cannot concentrate."                 
    Id. With respect
    to the timing of the joint and several liability
    inquiry, the Second Circuit stated that it preferred the Third
    Circuit's "common sense approach."             
    Id. It ultimately
    concluded,
    however, that "the choice as to when to address divisibility and
    apportionment are questions best left to the sound discretion of
    the trial court in the handling of an individual case."                     
    Id. at 723.
    A "moderate" approach to joint and several liability was
    adopted in United States v. A & F Materials Co., Inc., 
    578 F. Supp. 1249
    (S.D. Ill. 1984).      That case involved a disposal site at which
    over    7,000,000   gallons       of   waste   were    deposited.     The    court
    concluded that a rigid application of the Restatement approach to
    joint    and   several   liability       was    inappropriate.        Under    the
    Restatement     approach,     a    defendant     who    could   not   prove    its
    contribution to the harm would be jointly and severally liable.
    The court thought that such a result would be inconsistent with
    -21-
    congressional intent, because Congress was "concerned about the
    issue of fairness, and joint and several liability is extremely
    harsh and unfair if it is imposed on a defendant who contributed
    only a small amount of waste to a site."         
    Id. at 1256.
    The   court   concluded   that   six    factors   delineated   in   an
    unsuccessful amendment to CERCLA proposed by Representative (now
    Vice President) Gore could be used to "soften" the modern common
    law   approach   to   joint   and   several   liability   in   appropriate
    circumstances.      Under this "moderate" approach, a court has the
    power to impose joint and several liability upon a defendant who
    cannot prove its contribution to an injury, but it also has the
    discretion to apportion damages in such a situation according to
    the "Gore factors":
    (i) the ability of the parties to demonstrate
    that their contribution to a discharge[,] release
    or   disposal   of  a  hazardous   waste  can   be
    distinguished;
    (ii) the amount of the hazardous waste
    involved;
    (iii) the degree of toxicity of the hazardous
    waste involved;
    (iv) the degree of involvement by the parties
    in the generation, transportation, treatment,
    storage, or disposal of the hazardous waste;
    (v) the degree of care exercised by the
    parties with respect to the hazardous waste
    concerned, taking into account the characteristics
    of such hazardous waste; and
    (vi) the degree of cooperation by the parties
    with Federal, State, or local officials to prevent
    any harm to the public health or the environment.
    
    Id. at 1256.
        The court stated that its moderate approach would
    promote fairness by allowing courts to be sensitive to the inherent
    -22-
    unfairness    of    imposing      joint    and   several   liability       on    minor
    contributors, and to make rational distinctions based on such
    factors as the amount and toxicity of a particular defendant's
    contribution to a waste site.             
    Id. at 1257.
    In Allied Corp. v. Acme Solvents Reclaiming, Inc., 691 F.
    Supp. 1100 (N.D. Ill. 1988), a private cost recovery action in
    which the government was not a party, the court adopted the A & F
    moderate approach to joint and several liability.                        However, it
    expressed no opinion on the propriety of that approach in cost
    recovery actions involving the government as plaintiff.                         
    Id. at 1118
    & n.12.
    The A & F moderate approach, to the extent it is inconsistent
    with the Chem-Dyne approach to joint and several liability, was
    rejected in United States v. South Carolina Recycling and Disposal,
    Inc., 
    653 F. Supp. 984
    (D.S.C. 1986), aff'd in part and vacated in
    part, United States v. Monsanto Co., 
    858 F.2d 160
    (4th Cir. 1988).
    That case involved a site at which there were "thousands of
    corroded, leaking drums ... not segregated by source or waste type.
    Unknown, incompatible materials commingled to cause fires, fumes,
    and 
    explosions." 653 F. Supp. at 994
    .             The district court
    concluded    that   the    harm    was    indivisible,     because       all    of   the
    substances at the site contributed synergistically, and it was
    impossible to ascertain the degree or relative contribution of each
    substance.     
    Id. The court
        rejected   volume   as     a    basis      for
    apportionment, finding that it "is not an accurate predictor of the
    -23-
    risk associated with the waste because the toxicity or migratory
    potential of a particular hazardous substance generally varies
    independently of the volume."          
    Id. at 995
    (quoting 
    Chem-Dyne, 572 F. Supp. at 811
    ).      The court concluded that "[s]uch arbitrary or
    theoretical   means    of    cost    apportionment    do   not   diminish   the
    indivisibility    of   the    underlying     harm,   and   are   matters    more
    appropriately considered in an action for contribution between
    responsible parties after plaintiff has been made whole."                
    Id. On appeal,
    the Fourth Circuit affirmed the imposition of joint
    and several 
    liability. 858 F.2d at 173
    .           It noted that the
    generator defendants had presented no evidence of a relationship
    between the volume of waste, the release of hazardous substances,
    and the harm at the site.        Because the substances had commingled,
    apportionment was impossible "without some evidence disclosing the
    individual and interactive qualities of the substances deposited
    there."    
    Id. at 172.
           Because "[c]ommon sense counsels that a
    million gallons of certain substances could be mixed together
    without significant consequences, whereas a few pints of others
    improperly mixed could result in disastrous consequences," the
    court concluded that evidence of the relative toxicity, migratory
    potential, and synergistic capacity of the various substances was
    both relevant and necessary.         
    Id. at 172
    & n.26.      The court noted,
    however,   that   under      other   circumstances,    volume    could     be   a
    reasonable basis for apportioning liability, in a situation in
    -24-
    which independent factors had no substantial effect on the harm to
    the environment.     
    Id. at 172
    & n.27.
    The Fourth Circuit apparently agreed with the district court's
    rejection of the A & F moderate approach, stating that, while
    equitable factors are relevant in an action for contribution,
    "[t]hey are not pertinent to the question of joint and several
    liability, which focuses principally on the divisibility among
    responsible parties of the harm to the 
    environment." 858 F.2d at 171
    n.22.     Other courts have similarly concluded that equitable
    factors, such as those listed in the Gore amendment, have no place
    in   making   the   decision   whether    to   impose   joint   and   several
    liability, but are appropriate in an action for contribution among
    jointly and severally liable defendants.           See 
    Alcan-Butler, 964 F.2d at 270
    n.29 ("the contribution proceeding is an equitable one
    in which a court is permitted to allocate response costs based on
    factors it deems appropriate, whereas the court is not vested with
    such discretion in the divisibility determination"); United States
    v. Western Processing Co., Inc., 
    734 F. Supp. 930
    , 938 (W.D. Wash.
    1990) ("defendants may ... bring contribution actions for ultimate
    allocation of damages among the responsible parties where it is
    entirely appropriate to utilize the Gore Factors to determine the
    burden each party must bear"); United States v. 
    Stringfellow, 661 F. Supp. at 1060
    ("the Court's discretion in apportioning damages
    -25-
    among        the   defendants   during   the    contribution   phase    does   not
    [a]ffect the defendants' liability").12
    To summarize, our review of the jurisprudence leads us to
    conclude that there are three distinct, although closely-related,
    approaches to the issue of joint and several liability.                 The first
    is the "Chem-Dyne approach," which relies almost exclusively on the
    principles of the Restatement (Second) of Torts.                       Under that
    approach, a defendant who seeks to avoid the imposition of joint
    and several liability is required to prove the amount of harm it
    caused.
    The second approach, the "Alcan approach," is adopted by the
    Second and Third Circuits.          Although that approach also relies on
    the Restatement, it recognizes that, under the unique statutory
    liability scheme of CERCLA, the plaintiff's common law burden of
    proving causation has been eliminated.             Under the Restatement, the
    plaintiff must first prove that the defendant's conduct was a
    substantial factor in causing the harm; the defendant may limit its
    liability by proving its contribution to the harm.                In contrast,
    the Alcan approach suggests that a defendant may escape liability
    altogether if it can prove that its waste, even when mixed with
    12
    Our court has also held that the Gore factors are relevant
    in apportioning damages in an action for contribution. Amoco v.
    Borden, 
    Inc., 889 F.2d at 672-73
    .        See also Environmental
    Transportation Systems, Inc. v. Ensco, 
    Inc., 969 F.2d at 507-09
    ;
    United States v. R. W. Meyer, Inc., 
    932 F.2d 568
    , 571 (6th Cir.
    1991); O'Neil v. 
    Picillo, 883 F.2d at 179
    .
    -26-
    other wastes at the site, did not cause the incurrence of response
    costs.
    The third approach is the "moderate" approach taken in A & F.
    Under that approach, the court applies the principles of the
    Restatement in determining whether there is a reasonable basis for
    apportionment.    If there is not, the court may impose joint and
    several liability; the court, however, retains the discretion to
    refuse to impose joint and several liability where such a result
    would be inequitable.
    Although these approaches are not entirely uniform, certain
    basic principles emerge. First, joint and several liability is not
    mandated under CERCLA; Congress intended that the federal courts
    impose joint and several liability only in appropriate cases,
    applying common-law principles.       Second, all of the cases rely on
    the Restatement in resolving the issues of joint and several
    liability.     The major differences among the cases concern the
    timing of the resolution of the divisibility question, whether
    equitable factors should be considered, and whether a defendant can
    avoid liability for all, or only some portion, of the damages.
    Third, even where commingled wastes of unknown toxicity, migratory
    potential, and synergistic effect are present, defendants are
    allowed   an   opportunity   to   attempt   to   prove   that   there   is   a
    reasonable basis for apportionment (although they rarely succeed);
    where such factors are not present, volume may be a reasonable
    means of apportioning liability.
    -27-
    With respect to the timing of the "divisibility" inquiry, we
    believe that an early resolution is preferable.   We agree with the
    Second Circuit, however, that this is a matter best left to the
    sound discretion of the district court.    We also agree with the
    majority view that equitable factors, such as those listed in the
    Gore amendment, are more appropriately considered in actions for
    contribution among jointly and severally liable parties, than in
    making the initial determination of whether to impose joint and
    several liability.13   We therefore conclude that the Chem-Dyne
    13
    In adopting the majority view, we do not intend to imply that
    concerns for fairness and avoiding injustice should never be
    considered in deciding whether joint and several liability is
    appropriate. In this respect, we note that the legislative history
    of the SARA amendments to CERCLA, which created an express
    statutory right of contribution, cites the A & F decision for the
    proposition that the Gore factors may be considered in determining
    whether to grant apportionment in an action for contribution; see
    H.R. Rep. No. 253, 98th Cong., 2d Sess., pt. 3, at 19 (1985), 1986
    U.S.C.C.A.N. 2835; the legislative history also cites Chem-Dyne for
    the proposition that the party seeking apportionment has the burden
    of establishing that it should be granted.          Both of those
    decisions, however, deal with apportionment in terms of whether
    joint and several liability should be imposed, rather than in terms
    of contribution among jointly and severally liable parties.
    Considering CERCLA's "well-deserved notoriety for vaguely-drafted
    provisions and an indefinite, if not contradictory, legislative
    history," we do not view these citations as a basis for courts to
    determine joint and several liability based on those factors. See
    
    Amoco, 889 F.2d at 667
    .
    As discussed in the Restatement comments, there may be
    exceptional cases in which it would be unjust to impose several
    liability, such as when one of the defendants is so hopelessly
    insolvent that the plaintiff will be unable to recover any damages
    from it. We believe, however, that consideration of such factors
    will rarely be appropriate or necessary in CERCLA cases, especially
    when the plaintiff is the government.       Under CERCLA's strict
    liability scheme, the deck of legal cards is heavily stacked in
    favor of the government.      The legislative history shows that
    because Congress was concerned about the potential harshness or
    -28-
    approach is an appropriate framework for resolving issues of joint
    and several liability in CERCLA cases.     Although we express no
    opinion with respect to the Alcan approach, because it is not
    necessary with respect to the issues we are faced with in this
    case, we nevertheless recognize that the Restatement principles
    must be adapted, where necessary, to implement congressional intent
    with respect to liability under the unique statutory scheme of
    CERCLA.14
    unfairness to defendants, it refused to adopt mandatory joint and
    several liability in order to give courts the ability to ameliorate
    such results in appropriate cases.        We do not consider the
    financial condition of Leigh or Bell to be relevant to the decision
    in this case.   The EPA entered into its settlements with those
    defendants with full awareness of Sequa's opposition to the
    settlements, as well as to the imposition of joint and several
    liability.
    14
    The dissent's proposal for an "equitable divisibility" phase
    is indeed creative. Notwithstanding our respect for so fertile a
    mind, we do not believe that the plain language of CERCLA will
    support the application of such equitable factors in determining
    liability. Under CERCLA, a defendant has contribution rights only
    against other defendants who have not resolved their liability in
    an administrative or judicially approved settlement.      CERCLA §
    113(f), 42 U.S.C. § 9613(f).     No provision of CERCLA grants a
    defendant a right to hold the EPA liable for eliminating its
    contribution rights by entering into consent decrees with other
    jointly and severally liable defendants. In sum, CERCLA simply
    does not contemplate a proceeding in which a jointly and severally
    liable, non-settling defendant can force the EPA to bear the costs
    resulting from settlements that, although judicially approved, are
    later thought, for equitable reasons, to be unfair or otherwise
    inadequate. Because the EPA settled with Bell and Leigh (pursuant
    to judicially-approved consent decrees which are not before us on
    appeal), there can be no action for contribution. We cannot agree
    that the EPA "bargained" for the risk that its consent decrees with
    Bell and Leigh would be undermined in such a manner.
    -29-
    C
    Application of Joint & Several Liability
    We now turn to consider the application of these traditional
    and evolving common law principles of joint and several liability
    to the facts of this case.
    First,    we   conclude        that       the   district     court   erred     in
    determining that there is no reasonable basis for apportionment.
    We reject the EPA's assertion that the clearly erroneous standard
    of    review    applies    to   these    findings        of   the   district     court.
    According to the Restatement, "the question whether the harm to the
    plaintiff is capable of apportionment among two or more causes is
    a question of law."         Restatement (Second) of Torts, § 434.
    In the district court, the EPA contended that there was no
    reasonable basis for apportionment, because the harm to the Trinity
    Aquifer was a single harm, and a that single harm is the equivalent
    of an indivisible harm, thus mandating the imposition of joint and
    several liability.        Apparently now recognizing the lack of support
    for    that     position,15     the    EPA       on    appeal     acknowledges      that
    apportionment is available, at least theoretically, when there is
    a reasonable basis for determining the contribution of each cause
    to a single harm.         It asserts, however, that Sequa failed to meet
    its burden of proof on that issue.                      Sequa responds that the
    15
    The Second and Third Circuits have rejected similar arguments
    by the EPA. See, e.g., 
    Alcan-PAS, 990 F.2d at 722
    (rejecting the
    EPA's contention that "commingled" waste is synonymous with
    "indivisible" harm); 
    Alcan-Butler, 964 F.2d at 270
    n.29 (same).
    -30-
    district court was misled by the EPA's incorrect view of the law,
    and erroneously required it to prove a certain--as opposed to
    reasonable--basis for apportionment.
    Essentially, the question whether there is a reasonable basis
    for apportionment depends on whether there is sufficient evidence
    from which the court can determine the amount of harm caused by
    each defendant.      If    the   expert     testimony    and   other   evidence
    establishes a factual basis for making a reasonable estimate that
    will fairly apportion liability, joint and several liability should
    not be imposed in the absence of exceptional circumstances.                 The
    fact that apportionment may be difficult, because each defendant's
    exact contribution to the harm cannot be proved to an absolute
    certainty, or the fact that it will require weighing the evidence
    and making credibility determinations, are inadequate grounds upon
    which to impose joint and several liability.16
    Our review of the record convinces us that Sequa met its
    burden of proving that, as a matter of law, there is a reasonable
    basis for apportionment.         This case is closely analogous to the
    Restatement's illustrations in which apportionment of liability is
    appropriate.     For example, where cattle owned by two or more
    defendants     destroy    the    plaintiff's    crops,     the   damages   are
    16
    Of course, making such apportionment decisions should not be
    difficult for any factfinder that has been called on to apportion
    fault under comparative negligence statutes. Such decisions are
    rarely, if ever, made on the basis of evidence showing to a
    certainty the proportion of each party's fault.
    -31-
    apportioned     according        to   the    number       of    cattle    owned       by    each
    defendant, based on the reasonable assumption that the respective
    harm done is proportionate to that number.                      Thus, the Restatement
    suggests that apportionment is appropriate even though the evidence
    does not establish with certainty the specific amount of harm
    caused by each defendant's cattle, and even though there is a
    possibility that only one of the defendant's cattle caused all of
    the harm,     while   the    other      defendant's            cattle    idly    stood      by.
    Likewise, pollution of a stream by two or more factories may be
    treated as divisible in terms of degree, and apportioned among the
    defendants on the basis of evidence of the respective quantities of
    pollution discharged by each.
    As    is    evident         from   our        previous       discussion          of    the
    jurisprudence, most CERCLA cost-recovery actions involve numerous,
    commingled      hazardous    substances         with       synergistic      effects         and
    unknown toxicity.           In    contrast,        this    case    involves          only   one
    hazardous substance--chromium--and no synergistic effects.                                  The
    chromium    entered    the       groundwater         as    the     result       of    similar
    operations by three parties who operated at mutually exclusive
    times.    Here, it is reasonable to assume that the respective harm
    done by each of the defendants is proportionate to the volume of
    chromium-contaminated water each discharged into the environment.
    Even though it is not possible to determine with absolute
    certainty the exact amount of chromium each defendant introduced
    into the groundwater, there is sufficient evidence from which a
    -32-
    reasonable         and    rational   approximation     of   each   defendant's
    individual contribution to the contamination can be made.                  The
    evidence demonstrates that Leigh owned the real property at the
    site        from   1967   through    1981,    and   conducted   chrome-plating
    activities there in 1971 and 1972.              In 1972, Bell purchased the
    assets of the shop and leased the property from Leigh.                      It
    continued to conduct similar, but more extensive, chrome-plating
    activities there until mid-1976.             In August 1976, Sequa purchased
    the assets from Bell, leased the property from Leigh, and conducted
    similar chrome-plating activities at the site until late 1977.              In
    response to the EPA's motion for summary judgment, Sequa introduced
    evidence regarding chrome flake purchases during each operator's
    tenure.       It also introduced evidence with respect to the value of
    the chrome-plating done by each, as well as summaries of sales.
    Given the number of years that had passed since the activities were
    conducted, the records of these activities were not complete.17
    However, there was testimony from various witnesses regarding the
    rinsing and wastewater disposal practices of each defendant, and
    the amount of chrome-plating activity conducted by each.18
    17
    Sequa's records prior to 1977 had been destroyed pursuant to
    its records-retention policy.
    18
    The evidence is conflicting on some points, such as the date
    Sequa installed a wastewater tank and how many times that tank
    overflowed.    Of course, such credibility determinations and
    resolution of conflicts in the evidence are for the district court.
    -33-
    During   the    Phase   III     hearing,     Sequa    introduced   expert
    testimony regarding a volumetric approach to apportionment.                 The
    first expert, Henderson, calculated the total amount of chromium
    that had been introduced into the environment by Leigh, Bell, and
    Sequa, collectively and individually.            The second expert, Mooney,
    calculated the amount of chromium that would have been introduced
    into the environment by each operator on the basis of electrical
    usage records.
    In addition to rejecting apportionment because of competing
    theories, the district court also rejected volume as a basis for
    apportionment,    because    there    was   no    method    of   dividing   the
    liability among the defendants which would rise to any level of
    fairness above mere speculation.            It stated that each of the
    proposed apportionment methods involved significant assumption
    factors, because records had been lost, and because the theories
    differed significantly.
    The existence of competing theories of apportionment is an
    insufficient reason to reject all of those theories.               It is true,
    as the district court noted, that the records of chrome-plating
    activity   were     incomplete.       However,      under    the   facts    and
    circumstances of this case, and in the light of the other evidence
    that is available, that factor may be taken into account in
    apportioning Sequa's share of the liability.                Finally, the fact
    that Sequa's experts relied on certain assumptions in forming their
    opinions is not fatal to Sequa's ability to prove that there is a
    -34-
    reasonable basis for apportionment.    Expert opinions frequently
    include assumptions.   If those assumptions are well-founded and
    reasonable, and not inconsistent with the facts as established by
    other competent evidence, they may be sufficiently reliable to
    support a conclusion that a reasonable basis for apportionment
    exists.19
    In sum, we conclude that the district court erred in imposing
    joint and several liability, because Sequa met its burden of
    proving that there is a reasonable basis for apportioning liability
    among the defendants on a volumetric basis.    We therefore remand
    the case to the district court for apportionment.
    19
    The dissent's assertion that we are advocating a standard of
    proof of less than a preponderance of the evidence is incorrect.
    Sequa is, of course, required to prove its contribution to the harm
    by a preponderance of the evidence. Our point is that such proof
    need not rise to the level of certainty; evidence sufficient to
    permit a rough approximation is all that is required under the
    Restatement. Although the dissent acknowledges that certainty is
    not required, the evidence it would require Sequa to adduce in
    order to escape joint and several liability rises far above the
    level necessary to satisfy the preponderance of the evidence
    standard. We seriously doubt that any CERCLA defendant would ever
    be able to satisfy the dissent's rigorous proof requirements--which
    would be the equivalent of a mandate of joint and several liability
    in all CERCLA cases. Congress clearly had no such intention. In
    any event, the district court, apparently misled by the EPA's
    erroneous argument that a single harm cannot be apportioned, never
    had an opportunity to apply the appropriate legal principles to the
    factual questions of apportionment. As we have noted, the district
    court had already decided that the defendants were jointly and
    severally liable long before the Phase III hearing, at which the
    bulk of the evidence regarding divisibility was introduced.
    -35-
    V
    Alternate Water Supply System
    Sequa    also   challenges   the   EPA's   decision    to   provide   an
    alternate water supply (AWS) as an interim measure pending the
    completion of final remedial action.        The scope of our review of
    the EPA's selection of the AWS is governed by the 1986 amendments
    to CERCLA, which provide that such review is "limited to the
    administrative record."     42 U.S.C. § 9613(j)(1).        We are to uphold
    the EPA's decision "unless the objecting party can demonstrate, on
    the administrative record, that the decision was arbitrary and
    capricious or otherwise not in accordance with law."             42 U.S.C. §
    9613(j)(2).
    The scope of review under the "arbitrary and
    capricious" standard is narrow and a court is not
    to substitute its judgment for that of the agency.
    Nevertheless, the agency must examine the relevant
    data and articulate a satisfactory explanation for
    its action including a rational connection between
    the facts found and the choice made....         In
    reviewing that explanation, we must consider
    whether the decision was based on a consideration
    of the relevant factors and whether there has been
    a clear error of judgment.
    Motor Vehicle Manufacturers Ass'n v. State Farm Mutual Automobile
    Ins. Co., 
    463 U.S. 29
    , 43 (1983) (citations and internal quotation
    marks omitted).
    Sequa challenges the EPA's decision to provide the AWS on a
    number of grounds, including that:        (1) the administrative record
    demonstrates that the EPA failed to recognize that "substantial
    danger to public health or the environment," as specified in the
    -36-
    National Contingency Plan, is the standard against which the
    decision to implement an alternative water supply system must be
    measured; (2) there is no analysis of why the EPA believed the
    public health was at risk and required protection at the subject
    site; (3) the Safe Drinking Water Act's maximum contaminant level
    for chromium is based on a lifetime (70-year) exposure, but the
    alternate water supply system was merely a short-term (10-15 year)
    response; further, the administrative record contains no discussion
    of whether chromium presents a danger to humans on the basis of
    short-term   exposure;     and   (4)    the   EPA   failed    to    analyze   the
    likelihood that the contaminated water would be ingested.
    The EPA's defense of its decision to implement the alternate
    water supply system is, we think, singularly weak.                      The EPA
    contends primarily that we should defer to its technical expertise.
    It argues that the existence of chromium at levels exceeding the
    maximum contaminant level allowed under the SDWA presumptively
    establishes that its response was appropriate.               We cannot agree.
    Although the arbitrary and capricious standard of review is
    very lenient on the agency, and we will not substitute our judgment
    for that of the agency, "[j]udicial review ``must be based on
    something    more   than   trust   and    faith     in   EPA's     experience.'"
    American Petroleum Institute v. E.P.A., 
    661 F.2d 340
    , 349 (5th Cir.
    1981) (quoting Appalachian Power Co. v. Train, 
    545 F.2d 1351
    , 1365
    (4th Cir. 1976)).      Our determination of whether the EPA's decision
    was arbitrary and capricious must be made on the basis of the
    -37-
    rationale relied on by the EPA as contained in the administrative
    record.     We will not accept the EPA's post-hoc rationalizations in
    justification of its decision, nor will we attempt to supply a
    basis for its decision that is not supported by the administrative
    record.      See State 
    Farm, 463 U.S. at 50
    .20
    After   thoroughly    reviewing   the   administrative     record,    we
    conclude that the EPA's decision to furnish the AWS was arbitrary
    and capricious.       In vain we have searched the over 5,000 pages of
    administrative record, and found not one shred of evidence that
    anyone in the area was actually drinking chromium-contaminated
    water.      Amazingly, the EPA made no attempt to learn whether anyone
    was drinking the water, or whether anyone intended to utilize the
    AWS, until after it had made its decision to construct the AWS.
    One would think that surely such information was essential in order
    to reach an informed, rational decision as to whether an AWS was
    necessary, and whether it would reduce any significant threat to
    public      health.    The   administrative    record   reveals    that     the
    chromium-contaminated wells in the area all served commercial
    establishments, which the EPA prohibited from connecting to the
    AWS.   Moreover, the EPA did not require residents to connect to the
    20
    For this reason, the dissent's reliance on the EPA's 1986
    decision. The same is true with respect to the August 19, 1987,
    Record of Communication quoted by the dissent in footnote 6 is
    inappropriate, post-hoc rationalization.     The only information
    relevant to our determination of whether the EPA's decision was
    arbitrary and capricious is the information that the EPA relied on
    in making that decision.     Events occurring subsequent to the
    decision cannot be relied upon to support it.
    -38-
    system, and did not prohibit them from using contaminated water
    from their wells. Thus, on the basis of the administrative record,
    it appears that the AWS did not even reduce, much less eliminate,
    any public health threat.   No technical expertise is necessary to
    discern that the EPA's implementation of the AWS was arbitrary and
    capricious, as well as a waste of money.21
    VI
    All Costs?
    Having determined that the EPA's decision to implement the AWS
    was arbitrary and capricious, we must now decide whether the EPA
    nevertheless is entitled to recover its costs for designing and
    constructing the AWS.
    CERCLA § 107 provides for the recovery of the following costs:
    (A) all costs of removal or remedial action
    incurred by the United States Government or a State
    or an Indian tribe not inconsistent with the
    national contingency plan;
    (B) any other necessary costs incurred by any
    other    person   consistent  with   the   national
    contingency plan;
    (C) damages for injury to, destruction of, or
    loss of natural resources, including the reasonable
    21
    The dissent criticizes our performance of what we perceive
    to be our proper role of judicial review, because we have not
    meekly deferred to EPA's scientific expertise regarding the need
    for an alternate water supply system.        But even the dissent
    recognizes that CERCLA requires the EPA to take measures that will
    minimize threats to public health and the environment. The dissent
    has not explained how any potential threats to the public health
    were minimized by the alternate water supply system, when the EPA
    did not require residents to connect to the new system and did not
    prohibit them from using contaminated water from their wells.
    -39-
    costs of assessing such injury, destruction, or
    loss resulting from such a release; and
    (D) the costs of any health assessment or
    health effects study carried out under section
    9604(i) of this title.
    42 U.S.C. § 9607(a)(4) (emphasis added).
    Sequa contends that the EPA is authorized to recover only
    reasonable and necessary costs, relying on the statutory language
    as well as federal procurement laws and regulations. The EPA takes
    the position that it is entitled to recover all costs--even if
    unreasonable or unnecessary22--unless Sequa proves that such costs
    are inconsistent with the National Contingency Plan.23 The district
    22
    Other courts apparently have agreed with EPA's interpretation
    of CERCLA § 107(a)(4)(A).      In United States v. Northeastern
    Pharmaceutical & Chemical Co., Inc., 
    810 F.2d 726
    (8th Cir. 1986),
    the court noted that § 107(a)(4)(A) does not refer to "all
    reasonable costs" but simply to "all costs," and concluded that
    "``all costs' incurred by the government that are not inconsistent
    with the NCP are conclusively presumed to be reasonable." 
    Id. In United
    States v. Hardage, 
    982 F.2d 1436
    (10th Cir. 1992), the court
    likewise stated that, "[a]s long as the government's choice of
    response action is not inconsistent with the NCP, its costs are
    presumed to be reasonable and therefore recoverable." 
    Id. at 1443.
    Cf. United States v. R. W. Meyer, 
    Inc., 889 F.2d at 1504
    (emphasis
    added) ("to the extent cleanup actions are necessary, ... the
    statute contemplates that those responsible for hazardous waste at
    each site must bear the full cost of cleanup actions").
    23
    A majority of courts have held that, under § 107(a)(4)(A),
    the defendant has the burden of proving that the government's costs
    are inconsistent with the NCP. E.g., 
    Hardage, 982 F.2d at 1442
    ;
    
    Northeastern, 810 F.2d at 747
    ; Ottati & 
    Goss, 630 F. Supp. at 1395
    ;
    United States v. Conservation Chemical Co., 
    619 F. Supp. 162
    , 186
    (W.D. Mo. 1985); United States v. Ward, 
    618 F. Supp. 884
    , 899
    (E.D.N.C.   1985).      In   contrast,    under   §   107(a)(4)(B),
    nongovernmental entities are required to prove that their response
    costs are necessary and consistent with the NCP.        County Line
    Investment Co. v. Tinney, 
    933 F.2d 1508
    , 1512 & n.8 (10th Cir.
    1991); 
    Northeastern, 810 F.2d at 726
    . In Alcan-PAS, 990 F.2d at
    -40-
    court held that the EPA could recover all of its response costs, so
    long as they were not the product of "gross misconduct" by the
    agency.
    Although we approve of the district court's attempt to impose
    some restraints on the EPA's ability to recover costs from private
    parties, we find no statutory basis for its "gross misconduct"
    limitation.   Nevertheless, we are troubled by the implications of
    the EPA's position on this issue.             Sequa contends that, under the
    EPA's interpretation, defendants will be liable even if the EPA
    allows a    contractor    to   pay     its    officers   and   other    employees
    unjustified millions and allows each of them a Rolls-Royce for
    transportation.   Interestingly, the EPA did not attempt to refute
    Sequa's assertion,       either   in    its    appellate   brief   or    at   oral
    argument.   Instead, the EPA asserts a policy reason to support its
    interpretation:
    By refusing to permit defendants to defend against
    cost recovery actions by engaging in detailed
    attacks on the "reasonableness" of individual
    government cost items, Congress provided an
    incentive to those defendants to conduct the
    necessary response actions themselves.       Where
    defendants refuse to conduct the appropriate
    response actions, CERCLA allows the Government to
    undertake the response actions it deems necessary
    and appropriate without being constrained by the
    possibility that each line item of the costs of
    these actions will be challenged in cost recovery.
    719-20, the Second Circuit stated that the government must
    establish that the costs it incurred conform to the NCP; however,
    in support of that proposition, it cited B. F. Goodrich Co. v.
    Murtha, 
    958 F.2d 1192
    , 1198 (2d Cir. 1992), a private cost-recovery
    action under § 107(a)(4)(B).
    -41-
    In addition, the EPA asks us to take comfort in the fact that,
    through internal agency audits and other forms of self-policing,
    costs will be controlled.
    Acceptance of the EPA's position would effectively prohibit
    judicial review of the EPA's expenditures. In short, we would give
    the EPA       a    blank    check   in   conducting     response     actions.24    We
    seriously         doubt    that   Congress   intended    to   give    the   EPA   such
    unrestrained         spending     discretion.25       Moreover,      such   unbridled
    discretion removes any restraint upon the conduct of the EPA in
    exercising its awesome powers; if the EPA knows there are no
    24
    We note that CERCLA requires that remedial (permanent)
    actions be cost-effective; however, there is no corresponding
    requirement with respect to removal (interim) actions. 42 U.S.C.
    § 9621(b).    The NCP implements this statutory directive by
    requiring the EPA to consider cost with respect to remedial
    alternatives, and to select a cost-effective remedial measure. See
    
    Hardage, 982 F.2d at 1443
    .     The Tenth Circuit has held that a
    contention that an individual cost is excessive or unreasonable
    does not demonstrate inconsistency with the NCP; instead, a
    defendant "must show that the government acted arbitrarily and
    capriciously in failing to consider cost, or in selecting a
    remedial alternative that is not cost-effective." 
    Id. 25 Because
    challenges to EPA's response actions are not subject
    to judicial review outside the context of a cost-recovery or
    administrative enforcement action, the EPA has control over the
    timing of judicial review.    See 42 U.S.C. § 9613(h); Voluntary
    Purchasing Groups, Inc. v. Reilly, 
    889 F.2d 1380
    (5th Cir. 1989).
    Thus, the EPA may complete a response action, and wait to seek
    recovery of its costs after they have already been incurred. If
    EPA's decision to incur costs is later determined by a court to be
    arbitrary and capricious, or inconsistent with the NCP, the
    Superfund will not be reimbursed for EPA's expenditures. Even if
    Congress contemplated that all of EPA's decisions would be upheld,
    we would be reluctant to conclude that it gave the EPA the
    authority to waste Superfund money simply because such funds could
    later be recovered from the pockets of private parties.
    -42-
    economic consequences to it, its decisions and conduct are likely
    to be less responsible.
    We do not have to decide the question in this case, however,
    because        the    only    costs    Sequa   challenges   as   unreasonable    and
    unnecessary           are    those    associated   with   implementation    of   the
    alternate water supply system, a decision that we have already
    concluded was arbitrary and capricious. The Tenth Circuit recently
    held that, "[t]o show that the government's response action is
    inconsistent with the NCP, a defendant must demonstrate that the
    EPA acted arbitrarily and capriciously in choosing a particular
    response action to respond to a hazardous waste site."                     
    Hardage, 982 F.2d at 1442
    .             We find this reasoning persuasive, as well as
    adequate for resolving the issue before us, and therefore adopt
    it.26        Because the decision to implement an AWS was arbitrary and
    capricious, it is inconsistent with the NCP.                Accordingly, the EPA
    is not entitled to recover the costs of designing and constructing
    the AWS.
    We realize that, as a result of our decision disallowing the
    EPA's costs for the AWS, those costs will have to be borne by the
    Superfund.           Although regrettable, this is the inevitable result of
    arbitrary and capricious EPA decisionmaking.                 Without knowing, or
    even attempting to learn, whether the AWS would serve to protect
    the safety and health of anyone, the EPA officiously ignored the
    26
    We express no opinion on whether § 107(a)(4)(A) permits the
    EPA to recover unreasonable, unnecessary, or excessive costs.
    -43-
    comments of Bell and Sequa, and the results of its own remedial
    investigation, and stubbornly proceeded to spend over $300,000 to
    furnish a water supply system that was not needed, was not allowed
    to be used by the commercial establishments whose wells (according
    to the administrative record) were the only ones with chromium
    contamination   in   excess      of   the    SDWA    standards,    and   did   very
    little--indeed, if anything--to reduce any perceived public health
    threat posed by the chromium-contaminated groundwater. We can only
    assume that the EPA was not concerned about the cost of the AWS,
    because it believed that it could recover whatever was spent from
    Sequa.    Although the EPA's powers under CERCLA are indeed broad,
    Congress has not provided that private parties must pay for the
    consequences of arbitrary and capricious agency action.
    VII
    Settlement Credit
    CERCLA § 113(f)(2), 42 U.S.C. § 9612(f)(2), provides that a
    settlement by one defendant "reduces the potential liability to the
    others by the amount of the settlement."                   Bell and Leigh settled
    with the EPA for a combined total of $1.1 million.                 Sequa contends
    that the district court (1) improperly refused to credit that
    amount against the total recovery obtained by the government; and
    (2) erred in allocating the Bell settlement proceeds, $1,000,000,
    first to amounts for which Bell was severally liable (litigation
    costs    incurred   by   the    EPA   in    the     Bell    bankruptcy   adversary
    -44-
    proceeding before suit was filed against Sequa), and then toward
    costs for which Bell and Sequa were jointly and severally liable.
    Because § 113(f)(2) logically can be applied only to reduce a
    defendant's joint and several liability, which we have decided is
    inappropriate in this case, we need not address this issue.
    VIII
    Prejudgment Interest
    CERCLA § 107(a)(4) provides for the recovery of prejudgment
    interest, which "shall accrue from the later of (i) the date
    payment of a specified amount is demanded in writing, or (ii) the
    date of the expenditure concerned."                42 U.S.C. § 9607(a)(4).        The
    district court awarded prejudgment interest calculated from the
    date of expenditures.
    Sequa contends that the statute requires a written demand for
    a   specified     amount      of    response     costs   before    any   prejudgment
    interest    may      be    awarded.      The   EPA   does    not    contest   Sequa's
    assertion that a written demand is required, but contends that the
    notices sent to Sequa, advising it generally that the United States
    considered      it    to    be     potentially    liable    for    response   costs,
    satisfied that requirement. The EPA further contends that the 1986
    ROD to install the alternate water supply system put Sequa on
    notice of the potential cost of that decision.                     Finally, the EPA
    asserts    that      the    complaint    constitutes       the    necessary   written
    demand.
    -45-
    The statute plainly requires a written demand for specified
    response costs             as   a   prerequisite      to     an   award   of    prejudgment
    interest.       Neither the notices informing Sequa that generally the
    EPA would look to it for potential reimbursement "at some future
    time,"    nor     the      ROD      satisfy    that    requirement.        Although        the
    complaint does not specify an exact amount, we conclude that it
    constitutes a sufficient written demand for payment.                           We therefore
    hold that, with respect to costs incurred before the complaint was
    filed, prejudgment interest should be assessed from the date the
    complaint was filed. With respect to costs, if any, incurred after
    the complaint was filed, prejudgment interest should be assessed on
    those costs from the date of the expenditures.
    IX
    The judgment of the district court is REVERSED insofar as it
    imposes joint and several liability and allows recovery of the
    costs of designing and constructing the AWS; the portion of the
    judgment awarding prejudgment interest is VACATED; and the case is
    REMANDED for further proceedings consistent with this opinion.
    REVERSED in part, VACATED in part, and REMANDED.
    Parker, District                Judge,***************   concurring        in   part   and
    dissenting in part:
    I concur in the majority's thorough and reasoned approach to
    the difficult questions addressed in Parts IV (A) and IV (B) of its
    ***************
    Chief Judge of the Eastern District of Texas,
    sitting by designation.
    -46-
    opinion.    I concur also in the majority's holding regarding the
    prejudgment interest issue. However, I must dissent in substantial
    part from the majority opinion, for the following reasons.
    I
    Joint and Several Liability
    I cannot agree with the majority's holding on the joint and
    several liability/quantitative apportionment issue in this case.
    I do agree that the determination of whether the type harm involved
    in this case is capable of quantitative apportionment is a question
    of law.    And the majority is correct that the single chromium harm
    suffered by the Trinity Aquifer is the sort theoretically capable
    of apportionment.       However, while Sequa met its legal burden of
    establishing     that    the   type    harm   involved   is   capable   of
    apportionment, it failed to meet its factual burden relative to
    apportionment.     If proof exists by which the fact-finder could
    determine, on a reasonable basis, the extent of environmental
    injury attributable to a party, then certainly that party is
    entitled to escape the heavy hand of joint and several liability
    and to have its liability restricted to its actual, quantitative
    contribution to the single harm. The majority correctly places the
    burden of proof on the party seeking such a finding, to produce
    credible evidence to meet its burden.         But the majority confuses
    the distinction between the legal burden that the single harm at
    issue caused is of a type capable of apportionment, and the factual
    burden of proving the amount of harm attributable to a particular
    -47-
    47
    party.    See majority opinion at ____ ("Our review of the record
    convinces us that Sequa met its burden of proving that, as a matter
    of law, there is a reasonable basis for apportionment."              This case
    is closely analogous to the Restatement's illustrations in which
    apportionment of liability is appropriate.").
    The gist of the majority opinion is this legal fallacy:
    because the evidence is clear that Sequa did not cause 100% of the
    harm to the aquifer, Sequa must be entitled to a finding by the
    district court apportioning the amount of harm attributable to it
    under the Restatement (Second) of Torts, § 433.            We are not to
    approach our analytical task from that end.         The majority's "rule
    of thumb" miscasts the role of the district court and eviscerates
    the very concept of joint and several liability.
    I agree with the majority that certainty is not required.
    What is required is proof by a preponderance of the evidence.             The
    majority properly embraces the applicability of the Restatement
    (Second) of Torts to this case, but then seeks to divorce itself
    from the applicable preponderance of the evidence standard of proof
    so   as   to   mandate   that   the   district   court   "pick   a    number"
    apportioning liability.
    -48-
    48
    Civil cases are decided by a preponderance of the evidence
    because such proof affords a reasonable basis for decision.         In
    other words, while certainty of proof is not required in civil
    cases, probability is.   Evidence by "fifty-one percent," or to the
    extent of "more likely than not," is deemed sufficiently reliable
    for resolution of civil disputes.       But proof by less than this
    amount    is   unacceptably   speculative;   and   amounts   to   mere
    possibility, not probability. Dean William Prosser said it well in
    his influential treatise:
    On the issue of the fact of causation, . . . [the one
    bearing the burden of proof by a preponderance of the
    evidence] must introduce evidence which affords a
    reasonable basis for the conclusion that it is more
    likely than not that [the causation exists].      A mere
    possibility of such causation is not enough;[ ] and when
    the matter remains one of pure speculation or
    conjecture,[ ] or the probabilities are at best evenly
    balanced,[ ] it becomes the duty of the court to direct
    a verdict for the defendant. Where the conclusion is not
    one within the common knowledge of laymen, expert
    testimony may provide a sufficient basis for it, [ ] but
    in the absence of such testimony it may not be drawn.1
    If proof by a preponderance of the evidence is to be abandoned in
    CERCLA apportionment cases, the district court is at least entitled
    to guidance regarding the level of possibilities that is
    1
    William L. Prosser, THE HANDBOOK OF THE LAW OF TORTS (2nd ed.
    1955), § 42 (Causation and Joint Torts), at 222 (citations omitted)
    (emphasis added).
    -49-
    49
    acceptable.   Will 10% do?   20%?   30%?2
    The majority quotes the Restatement's § 433:
    (1) Damages for harm are to be apportioned among two or
    more causes where
    (a) there are distinct harms, or
    (b) there is a reasonable basis for determining the
    contribution of each cause to a single harm.
    (2) Damages for any other harm cannot be apportioned
    among two or more causes.
    The majority proceeds to quote comment d on subsection (1) of this
    Section, to the effect that a single harm that is conceptually
    divisible, "while not so clearly marked out as severable into
    distinct parts, [is] still capable of division upon a reasonable
    and rational basis, and of fair apportionment among the causes
    responsible . . . .   Where such apportionment can be made without
    injustice to any of the parties, the court may require it to be
    made."   The majority discusses two examples of such harm given in
    this comment:   the first being where cattle owned by two or more
    persons trespass upon another's land and destroy the other's crops;
    and the second involving the pollution of a stream by two or more
    2
    The majority, in a footnoted dissent to my dissent, asserts
    that it has adhered to the preponderance of the evidence standard.
    To the contrary, the majority has not done so.        Also in its
    "majority dissent," the majority calls the standard I have
    articulated a "rigorous" one, "far above the level necessary to
    satisfy the preponderance of the evidence standard." The second
    part of this "majority dissent" assertion is also just not so. The
    first part of it (about it being "rigorous") is so only to the
    extent the majority finds the fundamental civil case standard of
    preponderance of the evidence too "rigorous" to be applied in this
    case.
    -50-
    50
    factories.    But in both of these examples, as the Restatement's
    comment explains, a reasonable, factual basis for division must
    exist   in   order    for   the   court    to       actually   draw     the       possible
    apportionment.       In the cattle example, the comment explains that,
    although "the    aggregate        harm    is    a    lost   crop,   .   .     .    it   may
    nevertheless be apportioned among the owners of the cattle, on the
    basis of the number owned by each, and the reasonable assumption
    that the respective harm done is proportionate to that number."                          In
    the stream pollution example, the comment makes it plain that "the
    interference with the plaintiff's use of the water may be treated
    as divisible in terms of degree, and may be apportioned among the
    owners of the factories, on the basis of evidence of the respective
    quantities of pollution discharged into the stream."                               If the
    Restatement (Second) of Tort's term, "reasonable basis," as used in
    the majority opinion, means something other than preponderance of
    the evidence, the majority should at least say so, and why.
    "As other courts have noted, apportionment itself is an
    intensely factual determination."              United States v. Alcan Aluminum
    Corp., 
    990 F.2d 711
    , 722 (2nd Cir. 1993) (citing e.g., United
    States v. Chem-Dyne Corp., 
    572 F. Supp. 802
    , 811 (S.D. Ohio 1983)).
    The example used by the majority is a good one.                 If cows belonging
    to Farmers A and B damage another's crop, that is the type harm
    that as a matter of law is capable of apportionment.                     However, to
    evade joint and several liability, Farmer A or B must meet the
    burden of proving that apportionment is reasonable on some basis,
    -51-
    51
    such as the number of cows in the field belonging to each farmer or
    the amount of time each farmer's cows were in the field.             Proof
    that each farmer had some unknown number of cows in the field, or
    that an established number of cows belonging to each farmer were in
    the field for some unknown period of time, is not enough -- because
    under such circumstances the fact-finder is left to speculate on
    the question of the amount of harm reasonably attributable to each
    farmer's cows.
    In this case an experienced and careful district judge heard
    and reviewed the quantitative apportionment testimony and exhibits
    in this case, and it possessed opportunities to assess their
    convincingness far superior to those of this (appellate) court.
    The district court found Sequa failed to meet its quantitative
    apportionment burden of proof by a preponderance of the credible
    evidence.     That finding is reviewable at the Court of Appeals only
    on the basis of whether it was clearly erroneous.            The district
    court's finding was not clearly erroneous.
    The district court afforded Sequa its full apportionment due
    -- the opportunity to avoid joint and several liability by meeting
    its burden of proof through the presentation of credible evidence
    persuading the district court that the amount of harm caused by
    Sequa   can   be   apportioned   to   a   level   of   knowledge   that   is
    sufficiently reliable (i.e., by a preponderance of the evidence).
    Sequa simply failed to meet its burden.            The majority opinion
    notwithstanding, there is no reason to believe Sequa's appellate
    -52-
    52
    claim that the district court applied the wrong standard for
    apportionment (i.e., a standard of certainty, as opposed to the
    appropriate standard, of a reasonable basis). Rather, the district
    court's analysis, in the record, demonstrates that court's clear
    understanding of and application of the appropriate reasonable
    basis standard for apportionment questions like the one it faced.
    See e.g., District Court Order of May 9, 1990 (emphasis added here)
    ("this Court is of the opinion the chromium contamination found in
    the ground waters below the Odessa I Site is not divisible.           The
    evidence at both the Phase I and Phase III hearings clearly
    demonstrated there is no method of dividing the liability among the
    Defendants which would rise to any level of fairness above mere
    speculation.   * * *    Having heard the evidence adduced at trial of
    Phase III, this Court is of the opinion none of the [defendants'
    proffered   methods    of   actual   quantitative   apportionment]   offer
    viable methods for dividing liability among John Leigh, Bell or
    Sequa.").
    The majority remands the case to the district court for a
    finding apportioning liability on a volumetric basis.          Such was,
    however, precisely the purpose of Phase III of the trial.       In Phase
    III of the trial, the district court heard approximately 400 pages
    of testimony from 19 witnesses, 3 of whom were experts.               The
    district court reviewed over 150 exhibits:          80 new exhibits were
    admitted during Phase III of the trial; and the district court
    -53-
    53
    allowed for the more than 70 exhibits from Phase I to also be used
    during Phase III.
    A review of the record reveals that Sequa attempted to climb
    the preponderance hill by focusing on several potential methods of
    achieving a reasonable basis for quantitative apportionment of
    liability on a volumetric basis.
    Under one proffered method of such apportionment by a Sequa
    expert, the expert assumed that Sequa's electrical usage for
    plating operations was 30% of its total electrical usage, while, in
    contrast, he attributed to both Bell and Leigh a plating percentage
    of 50% of their respective total electrical usages.         But the bases
    for   this     expert's   electrical      percentage    assumptions        were
    effectively refuted by other evidence in the case.
    Sales records served as the springboard for another proffered
    method of apportionment.         The sales record approach suffered
    fatally from Sequa's ability to produce only scattered invoices.
    An attempt was then made to compare the defendants' expense
    records.     However, the only expense records for Sequa demonstrated
    that it purchased 3,500 pounds of chromic acid flake within a three
    month period in 1977.     Sequa's other records were destroyed.            Any
    attempt to extrapolate from the three month period in 1977 would
    have been at best speculative.
    A Sequa expert also assumed that Sequa had no waste disposal
    after the installation of a catch tank.         The credibility of this
    assumption     was   fatally   eroded   by   contrary    evidence     --    of
    -54-
    54
    substantial overflows, spills of plating solution, leaks in the
    plating tanks, and plating solution dumped by Sequa.
    Indeed, the only evidence the district court could view with
    any comfort was evidence of relative times of facility ownership
    and the periods of plating activity by the defendants.    Yet, the
    apportionment import of even this evidence was reduced to mere
    speculation when attempts were made to prove the actual level, or
    quantity, of plating activity conducted during the known periods of
    time.    In the language of the majority's cited example of cows in
    the field:    the defendants evidenced what periods of time each
    farmer had cows in the field, but failed to demonstrate to any
    degree above speculation how many cows each farmer had in the
    field.
    This case is a simple one by CERCLA standards.      But it is
    nonetheless quite typical of CERCLA-apportionment cases:     years
    after the pollution at issue, it is very difficult for a defendant
    to prove by a preponderance of the evidence even its rough share of
    responsibility for the single harm caused by pollution.    This is
    why the equitable (contribution) phase of CERCLA response cost
    proceedings is so important -- as Congress expressly recognized in
    the 1986 amendments to CERCLA (SARA). See H.R. No. 99-253(I), 99th
    Cong., 2d Sess. 79, reprinted in 1986 U.S.C.C.A.N. 2835, 2861 (SARA
    "confirms" federal right of contribution under CERCLA); see also
    United States v. Alcan Aluminum Corp., 
    990 F.2d 711
    , 724 (2nd Cir.
    1993) ("In [SARA] courts are granted implicit authority, using
    -55-
    55
    appropriate equitable factors, to 'allocate response costs among
    liable parties.'") (emphasis added) (quoting O'Neil v. Picillo, 
    883 F.2d 176
    , 179 (1st Cir. 1989)).       Sequa's evidence will not improve
    upon remand.    There is no more apportionment evidence available.
    Unless the district court's view of the evidence on remand is
    somehow "enlightened" by the majority's view of the evidence, the
    district court will have to apply a standard of proof of less than
    a preponderance of the evidence in order to reach a decision in
    conformity with the apportionment result mandated by the majority.
    Actually, the district court did attempt to "apportion" the
    defendants' liability on a basis other than a reasonable,               amount
    of contribution basis -- by making alternative findings on a purely
    equitable basis taking into account the facts that:            Bell occupied
    the site for the longest period of time; Sequa gained access to the
    site with knowledge that chromium contamination was a problem and
    measures to correct the contamination were necessary; and Leigh
    accrued the least financial gain from the chrome plating venture,
    but cooperated with the government in the government's efforts to
    discover the sources of the contamination.               The district court
    apportioned the defendants' equitable responsibility for costs at
    35% each to Bell and Sequa, and 30% to Leigh.            See District Court
    Order of May 9, 1990 ("this Court is of the opinion the liability
    of   the   parties   for   contamination   of   the   Chromium     I   Site    is
    indivisible    other   than   by   equitable    means.     *   *   *    In    the
    alternative [to accepting the proposed Partial Consent Decree
    -56-
    56
    attacked by Sequa on quantitative apportionment and equitable cost
    allocation      grounds],    this   Court       is     of     the   opinion      the
    responsibility for costs should be divided roughly equally among
    the parties with Bell and Sequa shouldering 35% of the burden each
    and john [sic] Leigh shouldering 30%.                      The reasons for such
    division are purely equitable, as Bell occupied the Site for the
    longest period of time and Sequa gained access to the Site with
    knowledge that chromium contamination was a problem and measures to
    correct the contamination were necessary."                 John Leigh accrued the
    least financial gain from his chromium-plating venture and has
    cooperated      at   every   juncture    with        the     Government    in    the
    government's efforts to discover the sources behind the chrome
    contamination.").
    The adoption of the Chem-Dyne approach in Part IV (B) of the
    majority opinion precludes such equitable apportionment except as
    part   of   a   contribution   claim    proceeding.           I   agree   with   the
    majority's embrace of the Chem-Dyne approach.                     But I think we
    should address the impact of the Leigh and Bell consent decrees
    upon Sequa's SARA-bestowed contribution rights -- in light of the
    alternative, equitable divisibility determinations already rendered
    by the district court after its "Phase III" hearing on the issue of
    the "relative contributions of Bell, Sequa and John Leigh to the
    -57-
    57
    contamination at the . . . Site."3        In my opinion, the following is
    the appropriate appellate court approach to this case.
    First, we should hold that the district court was not clearly
    erroneous in its finding that Sequa failed to meet its burden of
    proof on the factual, quantitative apportionment issue -- of
    Sequa's proportionate responsibility for the single chromium harm
    suffered by the aquifer.         Then, we should reject the district
    court's conclusion that, in this case, it did not need to consider
    the fairness of the proposed consent decrees relative to Sequa's
    SARA-bestowed, equitable cost allocation rights.          See 42 U.S.C. §
    9613 (f)(1).      I think we must address the impact of the consent
    decrees on the defendants' statutory equitable cost allocation
    rights -- in light of the alternative, equitable "apportionment"
    finding reasonably rendered by the district court.            This approach
    is   consistent    with   the   caselaw    on   appropriate    contribution
    analyses.4    And my approach certainly offers a much better prospect
    3
    District Court Order of May 9, 1990.
    4
    See e.g., Amoco Oil Co. v. Borden, 
    889 F.2d 664
    (5th Cir.
    1989), which recognized that under CERCLA's contribution provision:
    a court has considerable latitude in determining each
    party's equitable share.     * * *     Possible relevant
    factors include:    "the amount of hazardous substances
    involved; the degree of toxicity or hazard of the
    materials involved; the degree of involvement by parties
    in the generation, transportation, treatment, storage, or
    disposal of the substances; the degree of care exercised
    by the parties with respect to the substances involved;
    and the degree of cooperation of the parties with
    government officials to prevent any harm to public health
    or the environment."[ ] Additionally, the circumstances
    and conditions involved in the property's conveyance,
    -58-
    58
    for bringing this protracted and expensive litigation to an end
    than does a remand to the district court for more (essentially
    redundant) proceedings.
    Equity and 42 U.S.C. § 9613
    As the majority has noted, after concluding that Sequa had
    failed to meet its burden of demonstrating a reasonable fact basis
    for    apportionment     of    the        relative     responsibilities      of    the
    defendants, the district court rendered an alternative, purely
    equitable       "apportionment"       determination.            In   reaching      its
    alternative conclusion, the district court considered the following
    equitable facts:        that Bell occupied the site for the longest
    period of time; that Sequa gained access to the site with knowledge
    that chromium contamination was a problem and measures to correct
    the contamination were necessary; and that Leigh accrued the least
    financial gain from the chrome plating venture, but cooperated with
    the government in the government's efforts to discover the sources
    of    the   contamination.          The    district    court    "apportioned"      the
    defendants' equitable responsibility for costs at 35% each to Bell
    and    Sequa,    and   30%    to    Leigh.       While    the   district     court's
    alternative       equitable        findings      are    not    articulated    as    a
    "contribution claim" adjudication, I would hold that they satisfy
    including the price paid and discounts granted, should be
    weighed in allocating response costs.[ ].
    Amoco Oil 
    Co., 889 F.2d at 672-673
    (quoting Amendments Report, pt.
    III, at 19, reprinted in 1986 U.S.C.C.A.N. at 3042; other citations
    omitted; emphasis added).
    -59-
    59
    the essential requirements of CERCLA § 9613 (f)(1), and that they
    are consistent with this Circuit's decision in Amoco Oil Co. v.
    Borden, 
    889 F.2d 664
    (5th Cir. 1989) -- and thus, that they are
    sufficient to constitute contribution findings based in equity.
    In light of the procedural posture of this case and, in
    particular, in light of the district court's reasonably based, 35%
    - 35% - 30%, "purely equitable" "apportionment" findings, the
    parameters of Sequa's equity rights are plainly such that it would
    be inequitable and violative of the contribution claims provision
    of SARA, 42 U.S.C. § 9613 (f)(1), for those rights to be destroyed
    by the Leigh and Bell consent decrees.
    Consistent with CERCLA § 9613 (f)(1) and § 9613 (f)(2), I
    would hold that when, in a case such as this one, the EPA finds it
    advantageous to enter into a settlement with jointly and severally
    liable defendants, thereby shielding the settling defendants from
    contribution liability (by operation of CERCLA § 113(f)(2)), the
    EPA must bear the risk of its bargain being proved less than
    satisfying   upon   district   court   resolution   of   a    non-settling
    defendant's, consent decree-attacking, § 9613 (f)(1) equitable cost
    allocation claim.    Under the facts of this case, the EPA cannot
    have it both ways.      It cannot enjoy the benefits of joint and
    several liability and at the same time enter into consent decrees
    with the otherwise jointly and severally liable defendants to
    destroy a non-settling defendant's statutory right to an equitable
    allocation of costs under 42 U.S.C. § 9613 (f)(1).           The majority's
    -60-
    60
    sanctioning of such enjoyment by the government improperly allows
    the government to smelt what is plainly intended by Congress to be
    a   defendant's     rights   provision     (42   U.S.C.     §    9613)    into   a
    governmental sword against defendants.
    Under   the    facts   of   this   case,    Sequa's       equitable    cost
    allocation rights are not limited to 42 U.S.C. § 9613 (f)(2), which
    provision focuses on providing for offset contribution.                  In short,
    because Sequa raised its claims for an equitable, proportionate
    cost allocation ruling in what amounts to a contribution claims
    proceeding -- before the district court embraced the consent
    decrees shielding Bell and Leigh, under 42 U.S.C. § 9613 (f)(2),
    from contribution liability -- Sequa is entitled to invoke the
    broader equitable response cost allocation remedy contained in 42
    U.S.C. § 9613 (f)(1).        Compare 42 U.S.C. § 9613 (f)(1) (emphasis
    added here) ("Any person may seek contribution from any person who
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    61
    is liable or potentially liable under section 9607 (a) . . . .    In
    resolving contribution claims, the court may allocate response
    costs among liable parties using such equitable factors as the
    court determines are appropriate."), with 42 U.S.C. § 9613 (f)(2)
    (emphasis added here) ("A person who has resolved its liability to
    the United States or a State in an administrative or judicially
    approved settlement shall not be liable for claims for contribution
    regarding matters addressed in the settlement.       Such settlement
    does not discharge any of the other potentially liable persons
    unless its terms so provide, but it reduces the potential liability
    of the others by the amount of the settlement.").5
    II
    Alternate Water Supply System
    I further disagree with the majority's treatment of Sequa's
    challenge to the EPA's decision to provide an alternate water
    supply system (AWS) to the chromium-affected area as an interim
    measure pending the completion of final remedial action.      We are
    supposed to uphold the EPA's decision "unless the objecting party
    can demonstrate, on the administrative record, that the decision
    was arbitrary and capricious or otherwise not in accordance with
    law."   CERCLA, § 113 (f)(2), 42 U.S.C. § 9613 (f)(2).    I think it
    5
    Of course, at the time of a hearing considering the
    appropriateness or inappropriateness of a consent decree, the
    would-be settling defendant is still "potentially liable" under 42
    U.S.C. § 9607(a). See also Amoco Oil Co. v. Borden, 
    889 F.2d 664
    ,
    672 (5th Cir. 1989) ("a court has considerable latitude in
    determining each party's equitable share.").
    -62-
    62
    is clear that Sequa has again failed to meet its burden of proof.
    In 1983, the Supreme Court held:
    The scope of review under the "arbitrary and capricious"
    standard is narrow and a court is not to substitute its
    judgment for that of the agency.      Nevertheless, the
    agency must examine the relevant data and articulate a
    satisfactory explanation for its action including a
    rational connection between the facts found and the
    choice made . . . . In reviewing that explanation, we
    must consider whether the decision was based on a
    consideration of the relevant factors and whether there
    has been a clear error of judgment.
    Motor Vehicle Manufacturers Ass'n v. State Farm Mutual Automobile
    Ins. Co., 
    463 U.S. 29
    , 43 (1983) (citations omitted; internal
    quotation marks omitted).     A year later, in Chevron U.S.A. v.
    Natural Resources Defense Council, Inc., 
    467 U.S. 837
    (1984), the
    Supreme Court further clarified that when a court has determined
    the intent of Congress is statutorily vague or ambiguous with
    respect to the specific issue before the court, the court must
    defer to the "reasonable policy choice" of the agency charged with
    administering the 
    statute. 467 U.S. at 843-845
    .
    State Farm and Chevron make it plain that the courts are not
    to second-guess the scientific judgments of the EPA.           The EPA
    Administrator may apply his or her expertise to draw conclusions
    from suspected, but not completely substantiated, relationships
    between   facts,   from   trends    among   facts,   from   theoretical
    projections from imperfect data, from probative preliminary data
    not yet certifiable as "fact," and the like.         See Ethyl Corp. v.
    EPA, 
    541 F.2d 1
    , 28 (D.C. Cir.) (en banc), cert. denied, 426 U.S.
    -63-
    63
    941 (1976). And, while deference to agency decisionmaking does not
    require us to abdicate our judicial duty to carefully review the
    record in order to ensure that the agency has made a reasoned
    decision based on reasonable extrapolations from some reliable
    evidence, the agency's decision need only be reasonable in light of
    the facts reflected in the administrative record and under the
    applicable statute(s) and regulations; it need not be the "best" or
    "most reasonable" decision.            See generally 
    Chevron, supra
    .         The
    majority opinion notwithstanding:             in this case, the agency's AWS
    decision   was    both    a   permissible,      reasonable    reading   of   the
    operative CERCLA provisions -- and the NCP -- under Chevron, and
    not otherwise arbitrary or capricious under State Farm.
    A
    The Statutory Regime
    It will most often be true that the general aims and policies
    of a controlling statute will be evident from its text.                 United
    States v. Gaubert, -- U.S. --, --, 
    111 S. Ct. 1267
    , 1274 (1991).               It
    is evident from CERCLA's text that CERCLA's purpose is to enable
    the executive branch (i.e., the EPA) to target and clean up
    hazardous waste sites in an efficient manner; and the Superfund
    amendments   of    1986       [SARA]    have    undoubtedly    clarified     and
    strengthened the executive's CERCLA responsibilities and authority.
    See J. V. Peters & Co., Inc. v. Administrator, EPA, 
    767 F.2d 263
    ,
    264 (6th Cir. 1985).          In order to effectuate CERCLA's purposes,
    Congress delegated very broad powers to the EPA -- for the agency
    -64-
    64
    to reasonably interpret the CERCLA statutory scheme and respond to
    hazardous   substance   scenarios    in   accordance   with   such
    interpretation.
    -65-
    65
    In particular, the EPA is under the broad statutory obligation
    to expeditiously react to any release or threatened release of
    hazardous substances that may pose harm to the public health,
    welfare or to the environment.     CERCLA, § 101 (23), 42 U.S.C. §
    9601(23)   (emphasis   added).    There   are   two   types    of   CERCLA
    reactions, or responses, envisioned by the statute:           (1) removal
    actions, or interim measures like the AWS at issue in this case;
    and (2) remedial, or permanent measures.        "Removal actions" are
    defined as actions designed to effect an interim solution to a
    contamination problem, but very vaguely:
    "remove" or "removal" means the cleanup or removal of
    released hazardous substances from the environment, such
    actions as may be necessary taken in the event of the
    threat of release of hazardous substances into the
    environment, such actions as may be necessary to monitor,
    assess, and evaluate the release or threat of release of
    hazardous substances, the disposal of removed material,
    or the taking of such other actions as may be necessary
    to prevent, minimize, or mitigate damage to the public
    health or welfare or to the environment, which may
    otherwise result from a release or threat of release.
    The term includes, in addition, without being limited to,
    security fencing or other measures to limit access,
    provision of alternate water supplies, temporary
    evacuation and housing of threatened individuals not
    otherwise provided for, action taken under section
    9604(b) of this title, and any emergency assistance which
    may be provided under the Disaster Relief and Assistance
    Act.
    CERCLA. § 101(23), 42 U.S.C. § 9601(23) (emphasis added). See also
    National Contingency Plan, 40 C.F.R. § 300.6 (Definitions) (1986).
    "Remedial actions" are defined as actions designed to effect a
    permanent solution to the contamination problem, but they are
    defined just as vaguely:
    -66-
    66
    -67-
    67
    "remedy" or "remedial action" means those actions
    consistent with permanent remedy taken instead of or in
    addition to removal actions in the event of a release or
    threatened release of hazardous substance into the
    environment, to prevent or minimize the release of
    hazardous substances so that they do not migrate to cause
    substantial danger to present or future public health or
    welfare or the environment. The term includes, but is
    not limited to, such actions at the location of the
    release as storage, confinement, perimeter protection
    using   dikes,   trenches,   or  ditches,   clay   cover,
    neutralization, cleanup of released hazardous substances
    or contaminated materials, recycling or reuse, diversion,
    destruction, segregation of reactive wastes, dredging or
    excavations, repair or replacement of leaking containers,
    collection of leachate and runoff, onsite treatment or
    incineration, provision of alternative water supplies,
    and any monitoring reasonably required to assure that
    such actions protect the public health and welfare and
    the environment.
    CERCLA, § 101(24), 42 U.S.C. § 9601(24) (emphasis added).          See also
    National Contingency Plan, 40 C.F.R. § 300.6 (Definitions) (1986).
    CERCLA provides some much more specific requirements for the
    EPA's response actions, as well. For example, where groundwater is
    contaminated by chromium, the maximum contaminant levels allowed by
    the Safe Drinking Water Act (SDWA), 42 U.S.C. 300f, are "applicable
    or relevant and appropriate standards," for agency decisionmaking
    if the groundwater is a potential drinking water supply. 42 U.S.C.
    §   9621(d)(2)(A).   Chromium   is   one   element   for   which   maximum
    concentration limits ("MCLs") were set under the SDWA.              CERCLA
    nonetheless defines a "potential drinking water supply" quite
    broadly -- as "any raw or finished water source that is or may be
    used by a public water system * * * or as drinking water by one or
    -68-
    68
    more individuals.   42 U.S.C. § 9601(7) (emphasis added).6      Clearly,
    the agency's determination that the sole source, Trinity Aquifer
    falls within the statute's drinking water supply definition was not
    arbitrary or capricious, and reflects a reasonable construction and
    implementation of the EPA's broad CERCLA enforcement license.
    B
    The National Contingency Plan
    As the majority has stated, the National Contingency Plan
    (NCP) guides federal and state response activities by specifically
    identifying methods for investigating the environmental and health
    problems   resulting   from   a   release   or   threatened   release   of
    hazardous substances, and establishing criteria for determining the
    appropriate extent of response activities.         The 1986 NCP was the
    operative one in this case.
    6
    It is also illuminating that CERCLA § 118, 42 U.S.C. § 9618
    -- part of the 1986, SARA amendments to CERCLA -- made explicit
    that the executive branch is to give high priority to contaminated
    drinking water supplies. Section 118 provides:
    For purposes of taking action under section 9604 or
    9606 of this title and listing facilities on the National
    Priorities List, the President shall give a high priority
    to facilities where the release of hazardous substances
    or pollutants or contaminants has resulted in the closing
    of drinking water wells or has contaminated a principal
    drinking water supply.
    -69-
    69
    According to the 1986 NCP:
    The purpose of the . . . (NCP or Plan) . . . is to
    effectuate the response powers and responsibilities
    created by . . . (CERCLA) and the authorities established
    by section 311 of the Clean Water Act (CWA), as amended.
    * * *
    § 300.3 Scope
    (a) The Plan applies to all Federal agencies and this
    plan is in effect for:
    * * *
    (2) Releases or substantial threats of releases of
    hazardous substances into the environment, and releases
    or substantial threats of releases or pollutants or
    contaminants   which  may   present  an   imminent  and
    substantial danger to public health or welfare.
    (b) The Plan provides for efficient, coordinated, and
    effective response to discharges of oil and releases of
    hazardous substances, pollutants, and contaminants in
    accordance with the authorities of CERCLA and the CWA.
    It provides for:
    (1) Division and specification of responsibilities
    among the Federal, State, and local governments in
    response actions, and appropriate roles for private
    entities.
    NCP, 40 C.F.R. § 300.3 (1986) (emphasis added).    In this case, the
    EPA worked with the Texas Water Commission (TWC), and a private
    environmental research, or investigatory firm -- IT Corporation.
    Consistent with CERCLA, the 1986 NCP required that drinking
    water supplies meet the Safe Drinking Water Act (SDWA) standards
    for chromium -- a statutorily defined, "hazardous substance."     40
    C.F.R. 300.68 (i), Appendix V (2).    And the NCP defined a "drinking
    water supply" as "any raw or finished water source that is or may
    -70-
    70
    be used by a public water system (as defined by the Safe Drinking
    Act) or as drinking water by one or more individuals."               NCP, 40
    C.F.R. § 300.6 (Definitions) (1986) (emphasis added). The 1986 NCP
    also listed, as an appropriate response "to the threat of direct
    contact with hazardous substances or pollutants or contaminants,"
    the provision of an alternate water supply "where it will reduce
    the likelihood of exposure of humans or animals to contaminated
    water."        40 C.F.R. 300.65(c)(8) (emphasis added).            In short,
    contrary to the majority opinion, the EPA has not been statutorily
    or administratively handicapped to act only in an "all or nothing"
    manner relative to threats of hazardous substance exposure; quite
    the contrary.
    C
    The Administrative Record
    The majority's contentions notwithstanding, the Administrative
    Record    in    fact    contains   substantial   evidence   that   the   EPA's
    provision of an alternate water supply system was not arbitrary or
    capricious at the time the EPA made its AWS decision.
    In accordance with the NCP's fair, established procedures, a
    study was conducted to examine the alternatives available to
    accomplish the task of providing safe water to those in the
    affected area.         Based on this study, a determination was made that
    the best option was to extend the public water supply operated by
    the adjacent city of Odessa, Texas to the site.                Indeed, the
    determination to provide this alternate water supply to those in
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    71
    the affected area was based on an extensive Administrative Record,
    including in particular a two-volume Remedial Investigation report
    and a Record of Decision (which incorporates by reference, among
    other documents, the Remedial Investigation) -- outlining the EPA's
    reasons for selecting the AWS approach to the threats posed by the
    chromium-contaminated, sole drinking water source, Trinity Aquifer.
    The chromium posed a threat to present and future human life
    in the area.   As already stated, in making its assessments of the
    situation, the government was compelled by the NCP in effect at the
    time to follow the standards set in the Safe Drinking Water Act
    (the "SDWA"), 42 U.S.C. § 300f et seq.          Chromium is one element for
    which maximum concentration limits ("MCLs") were set under the
    SDWA.   The government found twelve of the fifteen sample wells
    tested had chromium levels at or above the MCL for chromium.
    Further,   nine    of   these   twelve    met    or   exceeded   the   higher
    recommended MCLs for chromium proposed by the EPA in the Federal
    Register of November 13, 1985.     Administrative Record at 3146.         And
    the Remedial Investigation "determined that about thirty (30)
    people were presently being served by seven (7) wells that produce
    the groundwater with chromium concentrations above the drinking
    water standard."    Administrative Record at 4015.
    The Administrative Record reflects a decision "to provide the
    residents and businesses in the Superfund Impacted Service Area
    with an alternate water supply from the City of Odessa (City)."
    
    Id. (emphasis added)
    (also stating that this alternative had "been
    -72-
    72
    given    conceptual      approval         by   the    past   City       Council    and     is
    contingent upon the contract being signed between the City of
    Odessa and the TWC (Texas Water Commission)").                             See also 
    id. ("Concurrently [with
    the Remedial Investigation and the Feasibility
    Study    for   the   site],     a    Focused         Feasibility        Study    (FFS)    was
    conducted      and   completed       in    August,        1986,    to    determine       what
    alternate      methods   were       available        to   supply    these       people   and
    surrounding potentially affected areas with a safe drinking water
    source.").
    Sequa     complains       that       businesses        using        the    chromium-
    contaminated wells ultimately were not "allowed" to participate in
    the     alternate    water      supply         system,     and     argues       that     this
    demonstrates that the decision to implement the AWS was arbitrary
    and capricious. However, as already noted, and contrary to Sequa's
    contention, the Administrative Record reveals that businesses were
    indeed a focus of the AWS decision.                       The Administrative Record
    further reflects that businesses could be incorporated into the
    design and construction of the system if they bore their own
    -73-
    73
    administrative costs and burdens.7         Moreover, CERCLA requires the
    EPA to take measures to minimize threats to public health and the
    environment,   not    to   ensure   elimination   of   all   such   threats.
    Accordingly, the 1986 NCP listed, as an appropriate response "to
    the   threat   of    direct   contact   with   hazardous     substances   or
    7
    The following record of communication is found in the
    Administrative Record:
    It was further decided that only those who responded
    "yes" on the survey [for those interested in water at
    Odessa I and II -- of which there were 2 (owning 8 lots)
    out of ten, and 56 out of 56 residents contacted,
    respectively)] would be given the opportunity to sign a
    contract for water.    * * *   Businesses and those who
    responded "no" on the questionnaire are not being
    considered for contact again. These residents can be
    incorporated into the design and construction of the
    system if they do their own platwork -- obtaining plat
    information and get their contracts notarized [sic]. The
    businesses must do their own negotiations with the city,
    and they incur all expenses for construction.
    Administrative Record at 4068 (Record of Communication to the EPA
    from the Texas Water Commission, regarding a discussion of the
    Record of Decision for Phase 2 of the Odessa AWS design; dated
    8/19/87).
    In its footnoted "majority dissent," the majority has
    misconstrued my citation of the 1987 Record of Communication as an
    attempt to rely upon an "event" occurring subsequent to the EPA's
    initial AWS decision to support that decision. Actually, I have
    cited the 1987 Record of Communication simply to refute the
    majority's misguided, post hoc assertion on Sequa's behalf that the
    AWS decision must be "arbitrary and capricious" because businesses
    in the area were not "allowed" to participate in the AWS. The 1987
    Record of Communication in fact reflects that the official decision
    to impose an entitlement regime upon area businesses regarding
    their ability to participate in the AWS -- i.e., only if the
    businesses do their own platwork and do their own negotiations with
    the city and incur their own expenses for construction -- was made
    after the initial decision to provide the AWS to the area
    generally.
    -74-
    74
    pollutants or contaminants," the provision of an alternate water
    supply -- "where it will reduce the likelihood of exposure of
    -75-
    75
    humans or animals to contaminated water."          40 C.F.R. 300.65(c)(8)
    (1986) (emphasis added).      It is obvious that the AWS provided to
    the area (an area otherwise dependent upon a chromium-contaminated
    aquifer for its sole source of drinking water) (at least) minimized
    the likelihood, present and future, of exposure of humans and
    animals to the contaminated water.8
    In sum:   the majority has erred in substituting its own, post
    hoc vision of wise response action judgment for that of the agency.
    The   EPA's   determination   to   install   the   AWS   is   the   type   of
    technically expert decision to which this Court properly accords
    "great deference."     The agency's interpretations of its broad
    CERCLA directives were reasonable.           The Administrative Record
    supports the agency's particular AWS determination. And the agency
    determination is not inconsistent with the NCP.          We should uphold
    the district court's decision to grant summary judgment to the
    agency on the questions associated with the executive agency
    decision to provide an alternate water supply to the individuals
    residing in the chromium-affected area.       To so uphold the agency's
    8
    In light of the fact that the statutory and administrative
    regime does not handicap the EPA to act in response to health and
    environmental threats merely in an "all or nothing" manner, I am
    unable to fathom the majority's dissenting point in its footnote 21
    -- to the effect that I have "not explained how any potential
    threats to the public health were minimized by the alternate water
    supply system, when the EPA did not require residents to connect to
    the new system and did not prohibit them from using contaminated
    water from their wells." The bemoaning of the fact that an agency
    did not use more of its enforcement and regulatory power strikes me
    as a strange argument to be made in the course of criticizing the
    very use of agency enforcement and regulatory power.
    -76-
    76
    decisionmaking and action does not amount to "meek deference" to
    the EPA's scientific expertise, as the majority has asserted.
    However, the scrutiny to which the majority subjects the agency's
    AWS decision certainly amounts to much more than the appropriate
    deferential review of the agency's action called for under the
    Supreme Court's caselaw concerning agency implementation of federal
    statutes.    See e.g., Chevron, U.S.A., Inc. v. Natural Resources
    Defense, 
    467 U.S. 837
    (1984).
    III
    All Costs?   Yes.
    I think we should decide whether the EPA is entitled to
    recover all of its costs for designing and constructing the AWS.
    We should decide that it is.
    As the majority has stated, CERCLA § 107 provides for the
    recovery of the following costs:
    (A)   all costs of removal or remedial
    action    incurred  by   the  United  States
    Government or a State or an Indian tribe not
    inconsistent with the national contingency
    plan;
    (B) any other necessary costs incurred
    by any other person consistent with the
    national contingency plan;
    (C) damages for injury to, destruction
    of, or loss of natural resources, including
    the reasonable costs of assessing such injury,
    destruction, or loss resulting from such a
    release; and
    (D) the costs of any health assessment
    or health effects study carried out under
    section 9604(i) of this title.
    -77-
    77
    42 U.S.C. § 9607(a)(4) (emphasis added).                 I share the majority's
    serious doubt that Congress intended to give the EPA completely
    unrestrained        spending     discretion.       But   we      are    bound    to   pay
    attention      to   the   fact    that,   while    CERCLA's       §    6307   (a)(4)(A)
    provides that the United States is entitled to recover "all costs
    of   removal    or    remedial     action   incurred       by    the    United   States
    Government or a State or an Indian tribe not inconsistent with the
    national contingency plan," other provisions of the statute --
    dealing with recovery of costs by private parties under CERCLA --
    state that these private parties are entitled to recover only
    "reasonable costs" of certain activities.                   See 42 U.S.C. § 9607
    (a)(4)(B).
    We must presume that when Congress wants to make cost a factor
    of statutory analysis it knows how to do so.                     See e.g., Union of
    Concerned      Scientists        v.   United      States        Nuclear       Regulatory
    Commission, 
    824 F.2d 108
    , 115 (D.C. Cir. 1987), and cases cited
    therein.9    Were we to ascribe no meaning to the distinctions drawn
    in CERCLA's § 9607, we would be derelict in our duty to pay close
    heed to both what Congress has said and what Congress has not said
    9
    An example is close at hand. CERCLA requires that remedial
    (permanent) actions be cost-effective; however, there is no
    corresponding requirement with respect to removal (interim)
    actions. 42 U.S.C. § 9621(b). (The NCP implements the remedial
    action, cost-effectiveness statutory directive by requiring the EPA
    to consider cost with respect to any remedial alternative, and to
    select only a cost-effective remedial measure. See 
    Hardage, 982 F.2d at 1443
    .)
    -78-
    78
    in the statute under review.        We would be derelict in our duty to
    interpret the law as plainly written by Congress.
    I   note   also   that   the   congressional   intent   reflected   in
    CERCLA's § 9607's "all costs" language reasonably reflects a
    fundamental purpose of CERCLA -- to ensure that there be rapid
    recovery of response costs from polluters, which in turn ensures
    that the Superfund will be made whole quickly and that the funds
    recovered can be applied to still other hazardous sites.          As the
    Second Circuit explained recently:
    In passing CERCLA Congress faced the unenviable choice
    of enacting a legislative scheme that would be somewhat
    unfair to generators of hazardous substances or one that
    would unfairly burden the taxpaying public.          The
    financial burdens of toxic clean-up had been vastly
    underestimated -- in 1980 when CERCLA was enacted $1.8
    billion was thought to be enough.      In 1986 when the
    Superfund Amendments and Reauthorization Act of 1986
    (SARA), Pub. L. No. 99-499, 100 Stat. 1613 (1986), was
    passed, $100 billion was held to be needed. It may well
    be more today. It is of course the public-at-large that
    is already bearing the economic brunt of this enormous
    national problem.
    United States v. Alcan Aluminum Corp., 
    990 F.2d 711
    , 716-717 (2nd
    Cir. 1993).
    Sequa has failed to show that the EPA's AWS action in this
    case was inconsistent with the NCP guiding EPA responses at the
    time of the agency's AWS decision and action.         Thus, in this case
    at least, Sequa's "reasonable cost" argument must fail. See United
    States v. Northeastern Pharmaceutical, 
    810 F.2d 726
    , 747-748 (8th
    Cir. 1986) (noting that CERCLA's § 9607(a)(4)(A) does not refer to
    all reasonable costs, but simply to all costs, and concluding
    -79-
    79
    therefore that all costs incurred by the government that are not
    inconsistent      with   the   NCP   are       conclusively   presumed    to   be
    reasonable), cert. denied, 
    484 U.S. 848
    (1987); United States v.
    Hardage, 
    982 F.2d 1436
    , 1443 (10th Cir. 1992) ("[a]s long as the
    government's choice of response action is not inconsistent with the
    NCP,    its    costs   are   presumed    to    be   reasonable   and   therefore
    recoverable.").
    Finally, I cannot join in the majority's commensuration with
    Sequa over the imagined "horrible" of unbounded liability for
    response costs assertedly effectuated by the district court's
    ruling.       As the Second Circuit discussed in Alcan Aluminum Corp.,
    Congress and the courts have constructed a framework of fairness to
    avoid the majority's feared "lack of limits" to the scope of CERCLA
    liability.       See United States v. Alcan Aluminum Corp., 
    990 F.2d 711
    , 721-722 (2nd Cir. 1993).10               The majority nonetheless finds
    particularly frightening Sequa's hypothetical in which the EPA
    enters into an independent contract with someone to investigate and
    respond to hazardous waste possibilities, and then collects from
    the defendant polluters, as among the costs of this response, a
    Rolls Royce to be provided to the independent contractor as a perk
    for the latter's good labors. Yet, the majority's fears are simply
    10
    The defendant's opportunity to demonstrate that reasonable
    apportionment is possible is part of this framework. So is the
    statutory availability of equitable contribution.
    -80-
    80
    unfounded.   The legal reality is that this sort of grossly-
    attenuated "horrible" cannot come to pass.    As the United States
    Supreme Court put it, in a similar context:
    -81-
    81
    There are obviously discretionary acts performed by a
    Government agent that are within the scope of his
    employment but not within the discretionary function
    exception [to the Federal Tort Claims Act] because these
    acts cannot be said to be based on the purposes that the
    regulatory regime seeks to accomplish. If one of the
    officials involved in this case drove an automobile on a
    mission   connected  with   his   official  duties   and
    negligently collided with another car, the exception
    would not apply. Although driving requires the constant
    exercise of discretion, the official's decisions in
    exercising that discretion can hardly be said to be
    grounded in regulatory policy.
    United States v. Gaubert, -- U.S. --, --, 
    111 S. Ct. 1267
    , 1275 n.7
    (1991)   (emphasis   added).   Thus,   there   exist   well-established
    standards whereby the majority's imagined Rolls Royce "horrible"
    would surely be adjudged arbitrary and capricious.            In stark
    contrast to the Rolls Royce "horrible" constructed by Sequa and the
    majority, the EPA response action at issue in this case -- as
    reflected in the Administrative Record -- is well grounded in
    CERCLA regulatory policy, not to mention the plain language of the
    statute, and is not arbitrary and capricious.
    IV
    Settlement Credit
    Finally, I do not think the district court erred in crediting
    the consent decree proceeds toward reimbursing the government for
    the costs incurred in pursuing Bell through bankruptcy proceedings,
    before allowing the leftover proceeds from the Bell settlement to
    be credited toward the sum Sequa was left owing the government.
    -82-
    82
    Sequa's interpretation of 42 U.S.C. § 9613 (f)(2) is unduly narrow
    and unreasonably strained.11
    First, reimbursable "response costs" made the subject of the
    Bell consent decree are specifically defined in the consent decree,
    as including enforcement expenses -- including in particular,
    attorneys' fees. And such expenses are recoverable under CERCLA --
    at least in response cost recovery cases brought by the government.
    See e.g., United States v. Northernaire Plating Co., 
    685 F. Supp. 1410
    , 1418 (W.D. Mich. 1988) (recoverable costs include "attorney
    fees and litigation expenses incurred by the staffs of the EPA and
    the Department of Justice"), aff'd sub nom. United States v. R. W.
    Meyer Inc., 
    889 F.2d 1497
    (6th Cir.), cert. denied, 
    494 U.S. 1057
    (1990); United States v. Northeastern Pharmaceutical, 
    579 F. Supp. 823
    , 851-852 (W.D.Mo. 1984) (to the same effect), aff'd in part,
    rev'd in part on other grounds, 
    810 F.2d 726
    (8th Cir. 1986), cert.
    denied, 
    484 U.S. 848
    (1987).   But cf. Stanton Road Associates v.
    11
    42 U.S.C. § 9613, as amended by the 1986, SARA amendments,
    provides:
    (f) Contribution
    (2) Settlement
    A person who has resolved its liability to
    the    United  States   or   a   State  in   an
    administrative     or    judicially    approved
    settlement shall not be liable for claims for
    contribution regarding matters addressed in
    the settlement.     Such settlement does not
    discharge any of the other potentially liable
    persons unless its terms so provide, but it
    reduces the potential liability of the others
    by the amount of the settlement.
    -83-
    83
    Lohrey Enterprises, 
    984 F.2d 1015
    (9th Cir. 1993) (holding that
    private parties are not entitled to recover attorneys' fees and
    expenses as costs incurred in bringing CERCLA cleanup cost recovery
    action), with General Electric Co. v. Litton Industrial Automation
    Systems, Inc., 
    920 F.2d 1415
    (8th Cir. 1990) (holding that private
    parties are entitled to recover attorneys' fees and expenses
    incurred in bringing CERCLA cleanup cost recovery action), cert.
    denied, -- U.S. --, 
    111 S. Ct. 1390
    (1991).
    Moreover, the purpose of the CERCLA § 113(f)(2) settlement
    offset provision is to prevent the government from obtaining
    "double recoveries" in cases in which joint and several liability
    has   been     imposed.         See     United    States      v.        Northeastern
    Pharmaceutical, 
    810 F.2d 726
    , 748-749 (8th Cir. 1986) ("Appellants
    argue that unless the judgment is offset by the amount of the
    Syntex settlement, the government will improperly receive a double
    recovery of that amount from Syntax and the appellants."), cert.
    denied, 
    484 U.S. 848
    (1987).          The district court's treatment of the
    consent decree proceeds is fully consistent with this anti-double
    recovery purpose.        The district court's ruling, that the initial
    crediting of the Bell settlement funds must go toward making the
    government whole with respect to the enforcement expenses it
    incurred     in    connection    with     pursuing     Bell        in    bankruptcy
    proceedings,      does   not   provide    the    government    with       a   "double
    recovery."     Indeed, an adoption of Sequa's view of the crediting
    provision would provide Sequa with a "windfall" at the expense of
    -84-
    84
    the Superfund. In short, the result advocated by Sequa is contrary
    to the most fundamental purposes of CERCLA.
    In my opinion, Sequa should be provided its statutory right of
    equitable response cost allocation under 42 U.S.C. § 9613 (f)(1).
    My approach approves the district court's alternate, equitable
    "appropriation"   as   a    §   9613    (f)(1),   equitable   response   cost
    allocation.   Under my approach, Sequa would be responsible for its
    35% share of cost responsibility, and no more -- notwithstanding
    the settlement the government has negotiated with Bell.             If that
    amount would, absent a crediting from the settlement proceeds,
    result in the government reaping a "double recovery," then the
    crediting provision should be applied to prevent that result.              In
    such circumstances, the money remaining from the Bell settlement
    after the application of some of it toward the reimbursement of the
    government for its enforcement expenses incurred against Bell in
    bankruptcy proceedings may be credited to the joint and several
    liability of Sequa.        If, on the other hand, the combination of
    Sequa's equitable allocation of response costs payment plus the
    leftover settlement (crediting) proceeds still fails to make the
    Superfund whole, it is my opinion that such is simply the proper
    consequence of the bargain the government struck in this case; the
    government must live with its bargain.
    V
    Conclusion
    -85-
    85
    While I concur with much of the majority opinion, I must also
    dissent from much of it.          Contrary to congressional intent and
    traditional judicial doctrines -- not to mention the bedrock
    principle of a prudent separation of federal governmental powers --
    the majority has become much more than an appellate court in order
    to   reach   its   rulings   in    this    case   regarding   quantitative
    apportionment and the executive branch decision to provide the
    chromium-affected area with an alternate water supply system.          The
    majority has usurped for itself the special powers of the executive
    agency and the trial court as well.
    -86-
    86
    

Document Info

Docket Number: 91-8080

Filed Date: 9/29/1993

Precedential Status: Precedential

Modified Date: 12/21/2014

Authorities (29)

United States v. Northernaire Plating Co. , 685 F. Supp. 1410 ( 1988 )

United States v. Chem-Dyne Corp. , 572 F. Supp. 802 ( 1983 )

United States v. Stringfellow , 661 F. Supp. 1053 ( 1987 )

United States v. Western Processing Co., Inc. , 734 F. Supp. 930 ( 1990 )

General Electric Company v. Litton Industrial Automation ... , 920 F.2d 1415 ( 1990 )

united-states-of-america-state-of-new-york-v-alcan-aluminum-corporation , 990 F.2d 711 ( 1993 )

Chevron U. S. A. Inc. v. Natural Resources Defense Council, ... , 104 S. Ct. 2778 ( 1984 )

Motor Vehicle Mfrs. Assn. of United States, Inc. v. State ... , 103 S. Ct. 2856 ( 1983 )

United States v. Gaubert , 111 S. Ct. 1267 ( 1991 )

united-states-v-alcan-aluminum-corp-basf-corp-beazer-materials-and , 964 F.2d 252 ( 1992 )

bf-goodrich-company-upjohn-company-dow-corning-corporation-reynold , 958 F.2d 1192 ( 1992 )

American Petroleum Institute v. Environmental Protection ... , 661 F.2d 340 ( 1981 )

union-of-concerned-scientists-v-us-nuclear-regulatory-commission-and-the , 824 F.2d 108 ( 1987 )

environmental-transportation-systems-incorporated-also-known-as , 969 F.2d 503 ( 1992 )

United States v. R.W. Meyer, Inc. , 889 F.2d 1497 ( 1989 )

United States v. South Carolina Recycling and Disposal, Inc. , 653 F. Supp. 984 ( 1986 )

United States v. a & F Materials Co., Inc. , 578 F. Supp. 1249 ( 1984 )

j-v-peters-co-inc-j-v-peters-co-david-b-shillman-dorothy , 767 F.2d 263 ( 1985 )

United States v. Northeastern Pharmaceutical & Chemical Co. , 579 F. Supp. 823 ( 1984 )

ethyl-corporation-v-environmental-protection-agency-ppg-industries-inc , 541 F.2d 1 ( 1976 )

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