Campbell County v. Royal ( 2012 )


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  • Present:   Kinser, C.J., Lemons, Millette, Mims, McClanahan, and
    Powell JJ., and Lacy, S.J.
    CAMPBELL COUNTY
    OPINION BY
    v.   Record No. 101168               CHIEF JUSTICE CYNTHIA D. KINSER
    January 13, 2012
    CLAUDE M. ROYAL, ET AL.
    FROM THE CIRCUIT COURT OF CAMPBELL COUNTY
    J. Michael Gamble, Judge
    In this action, the trial court granted summary judgment
    against a locality, holding it liable to landowners under the
    State Water Control Law, Code §§ 62.1-44.2 through -44.34:28
    (the Water Control Law), in particular Code § 62.1-44.34:18(C)
    of the "Discharge of Oil Into Waters" Law, Code §§ 62.1-44.34:14
    through -44.34:23 (the Oil Discharge Law), for the contamination
    of groundwater by leachate and landfill gas.    Because we
    conclude that the Oil Discharge Law does not apply to the
    passive, gradual seepage of leachate and landfill gas into
    groundwater, we will reverse the trial court's judgment.
    I.   MATERIAL FACTS AND PROCEEDINGS
    Claude M. Royal and Virginia H. Royal (the Royals) own,
    operate, and reside in "a manufactured home community" known as
    "Twin Oaks Park" (the Park), which contains approximately 165
    acres situated in Campbell County (the County). 1   In 2005, when
    1
    Modern Home Construction, Inc., a Virginia corporation
    owned by the Royals, owns a small parcel of real estate located
    within the Park. Like the Royals, it was a plaintiff in the
    proceedings in the trial court and is an appellee in this
    the current litigation began, the Park contained 218 residential
    lots and had approximately 450 residents.   The Park's southern
    boundary is adjacent to the "Campbell County Sanitary Landfill,"
    an approximately 160-acre "solid waste disposal facility" owned
    and operated by the County. 2
    The County operates the facility pursuant to a permit
    originally issued by the Department of Health in 1979. 3   The
    appeal. In this opinion, we will refer to the Royals and Modern
    Home Construction, Inc. collectively as "the Royals."
    2
    The term "'[s]olid waste disposal facility' means a solid
    waste management facility at which solid waste will remain after
    closure." 9 VAC § 20-81-10. The term "'[s]olid waste
    management facility' . . . means a site used for planned
    treating, storing, or disposing of solid waste. A facility may
    consist of several treatment, storage, or disposal units." Id.
    The County's permit describes the facility as a "Sanitary
    Landfill." The term
    "[s]anitary landfill" means an engineered land
    burial facility for the disposal of household
    waste that is so located, designed, constructed,
    and operated to contain and isolate the waste so
    that it does not pose a substantial present or
    potential hazard to human health or the
    environment. A sanitary landfill also may
    receive other types of solid wastes, such as
    commercial solid waste, nonhazardous sludge,
    hazardous waste from conditionally exempt small
    quantity generators, construction demolition
    debris, and nonhazardous industrial solid waste.
    Id.
    3
    Such permits are now issued by the Department of
    Environmental Quality. See Code § 10.1-1408.1(A). Prior to
    1986, the Department of Health regulations controlled the
    disposal of solid waste. Those regulations have since been
    replaced by the Virginia Solid Waste Management Regulations, 9
    VAC § 20-81-10, et seq.
    2
    facility contains three disposal areas: "the closed capped, and
    unlined Phase II Disposal Area," the active "Phase III Disposal
    Area," and a "Phase IV Disposal Area to be constructed in the
    future."   The Phase II Disposal Area was closed in 1995 and is
    the area from which the solid waste constituents at issue in
    this case seeped. 4
    Pursuant to the requirements of the Virginia Solid Waste
    5
    Management Regulations (SWMR), 9 VAC § 20-81-10, et seq.,       the
    County installed a groundwater monitoring system in the early
    1990s with regard to Phase II. 6   See 9 VAC § 20-81-250; see also
    Code § 10.1-1410.2.   After detecting "statistically significant"
    levels of "solid waste constituents in one or more downgradient
    monitoring wells" in the Phase II area in 1998, the County filed
    Groundwater Protection Standards (GPS) with the Department of
    Environmental Quality (DEQ).   See 9 VAC § 20-81-250(A)(6).     DEQ
    approved the GPS for Phase II in 2001.
    4
    Because the Phase II Disposal Area is the only portion of
    the solid waste disposal facility relevant to the issues in this
    appeal, we will refer to it in this opinion as "the Landfill" or
    "Phase II."
    5
    In March 2011, the Department of Environmental Quality
    amended and renumbered the SWMR. With respect to the
    regulations cited in this opinion, the changes were non-
    substantive. We will thus refer to the current version of the
    SWMR.
    6
    The County did not install monitoring wells at the
    northern boundary of the Landfill until 2002, allegedly because
    of incorrect advice from its engineers.
    3
    In 2002, a sampling from one of the monitoring wells
    revealed two constituents (trichloroethene and vinyl chloride)
    at concentration levels that exceeded their respective GPS.     In
    accord with the SWMR's requirement that the owner or operator of
    a landfill take corrective action when a GPS "is exceeded at
    statistically significant levels," 9 VAC § 20-81-260(A), the
    County initiated a Nature and Extent Study (NES) and drilled
    additional groundwater monitoring wells "to address concerns
    regarding the possibility of groundwater contamination migrating
    beyond the facility property."   Testing of samples taken from
    the additional monitoring wells revealed the presence of several
    "volatile organic compounds" (VOCs). 7   Among the VOCs detected,
    seven exceeded the GPS: benzene, chloroethane, dichloroethene,
    methylene chloride, tetrachloroethene, trichloroethene, and
    vinyl chloride.   These VOCs were further classified as "either
    chlorinated hydrocarbons or aromatic hydrocarbons."
    The analytical data collected during the NES revealed "a
    two-pronged (northern and eastern) plume composed of chlorinated
    and aromatic hydrocarbons present in the uppermost aquifer
    beneath" Phase II.   The northern prong of the plume extended
    7
    VOCs are "very volatile. . . . organic chemicals" that may
    include "components of gasoline." The VOCs initially detected
    were: "benzene; chlorobenzene; chloroethane; 1,2-
    dichlorobenzene; 1,4-dichlorobenzene; 1,1-dichloroethane; cis-
    1,2-dichloroethene; dichloromethane; tetrachloroethene, toluene;
    trichloroethene; vinyl chloride; and xylenes."
    4
    beyond the Landfill property approximately 2,000 feet onto the
    adjacent property owned by the Royals.   Data from some "off-site
    water supply wells" located on the Park indicated that the
    northern prong of the plume had impacted "some of the water
    supply wells in the [P]ark."   The "distribution and
    concentrations present in the northern prong of the plume [were]
    the result of a combination of landfill gas and leachate impacts
    to groundwater."
    According to the NES, the northern prong of the plume
    "migrated in a direction that [was] contrary to the expected
    groundwater flow direction based on the potentiometric surface
    geometry."   The engineers conducting the NES developed three
    "hydrogeologic models/scenarios" to "explain the distribution
    and extent of the northern prong of the plume."   The first model
    involved "a potentiometric surface that was stressed by the
    groundwater withdrawal activities to the point where the
    hydraulic gradient along the northern property line of [Phase
    II] shifted from the apparent natural easterly gradient to one
    that sloped towards the water supply wells that [were]
    impacted."   The "second hydrogeologic model" pertained to "the
    presence of preferential flow pathways in the uppermost
    aquifer."    The third model provided "for structural control of
    the groundwater flow direction in the aquifer relative to the
    expected flow direction as suggested by the gradient of the
    5
    potentiometric surface."   In sum, the NES reported "that the
    northern prong of the groundwater plume, which [was] anomalous
    in terms of groundwater flow direction and velocity in relation
    to the eastern prong of the plume, [was] likely to be the result
    of a combination of extensive off-site groundwater withdrawal
    from the bedrock/saprolite interface, and preferential flow
    paths."   "Evidence indicate[d] the source of contaminants [was]
    both landfill gas and leachate from" Phase II and "that natural
    attenuation of the contaminants [was] occurring in the aquifer."
    In October 2002, DEQ issued a "Notice of Violation" to the
    County, stating that the Landfill's "current groundwater
    monitoring system for the closed Phase II area [did] not ensure
    detection of groundwater contamination in the uppermost aquifer
    at the northern waste management unit boundary," i.e., the
    boundary between the Landfill and the Royals' property.    In a
    subsequent "Order by Consent," the County agreed, inter alia, to
    "submit a major Permit amendment for a corrective action program
    pursuant to [9 VAC § 20-81-260]." 8   The County also agreed to
    notify "'all persons who own the land or reside on the land that
    directly overlies any part of the plume of contamination' that
    [had] migrated beyond the [Landfill's] boundary."
    8
    The County also prepared an "Assessment of Corrective
    Measures" pursuant to 9 VAC § 20-81-260(C)(3), and a "Risk
    Assessment" to supplement the Assessment of Corrective Measures.
    6
    By letter dated September 19, 2003 the County informed Mr.
    Royal that "[g]roundwater contamination [had] been detected at
    various points under" the Park. 9       In May 2005, the Royals filed a
    motion for judgment, alleging that the County's "Landfill
    operations have contaminated underground sources of drinking
    water at or near the Landfill and on the Park," and have caused
    the "discharge[]" of various "harmful and toxic chemicals,
    hazardous substances and pollutants from and in the Landfill
    waste mass to negatively impact the air, the groundwater, and
    the surface water on, within and under the Park." 10
    The Royals claimed the contamination constituted a
    "discharge of oil," in violation of Code § 62.1-44.34:18 of the
    Oil Discharge Law, and also damaged the Royals' property without
    just compensation, in violation of Article I, Section 11 of the
    Constitution of Virginia.   The Royals prayed for an award of
    damages against the County. 11
    9
    The Royals knew, before the September 2003 letter, about
    the potential groundwater contamination. They drilled a
    monitoring well on their property in the spring of 2002 and
    learned that small amounts of some solid waste constituents were
    present in a few of the wells situated in the Park.
    10
    The parties agreed that the groundwater of both the
    Landfill and the Park contained benzene, chloroethane, CIS-1, 2-
    dichloroethene, methylene chloride, tetrachloroethene,
    trichloroethene, and vinyl chloride.
    11
    The Royals also asserted a claim for breach of contract,
    but that claim is not before us in this appeal.
    7
    The County denied that there had been a "discharge of oil"
    and that the Royals' property had been taken/damaged "within the
    meaning of Article 1, Section 11 of the Constitution of
    Virginia."   After the parties engaged in discovery, the Royals
    and the County each filed motions for summary judgment. 12
    In their motion, the Royals argued, among other things,
    that the County was a "person discharging or causing or
    permitting a discharge of oil into or upon state waters" and was
    therefore liable for damages to their property and the Park
    pursuant to Code § 62.1-44.34:18.     They also asserted that the
    County's operation of the Landfill had damaged their property,
    they had not been compensated for such damage, and thus the
    County was liable by reason of inverse condemnation.
    Conversely, the County contended that the Oil Discharge Law,
    when read as a whole, did not apply in the context of the
    County's operation of the Landfill.    The County also argued that
    there were "material facts genuinely in dispute" with regard to
    the inverse condemnation claim.
    12
    The County also filed a plea in bar, arguing that the
    Royals' claims were barred by the applicable statute of
    limitations for property damage and inverse condemnation claims.
    See Code §§ 8.01-243(B) -246(4), respectively. The trial court
    denied the plea in bar, holding that, pursuant to 42 U.S.C.
    § 9658(a)(1), the federal commencement date applied and the
    Royals' cause of action accrued when they knew or reasonably
    should have known of the damage to the Park. Although the
    County now challenges the trial court's denial of its plea in
    bar, we need not address that issue.
    8
    At an evidentiary hearing, 13 the County offered the
    testimony of Peter Garrett, a geologist, regarding the ways in
    which the groundwater could have been contaminated by the
    Landfill operations.   Garrett explained that the term
    "groundwater" means "the water in the ground below our water
    table [and] any water that percolates . . . to the water table."
    The term "leachate," according to Garrett, means "contaminated
    groundwater," whether "in that unsaturated zone percolating down
    into the water table" or already at that level and "moving with
    [the] groundwater to some other place." 14   In landfills, Garrett
    explained, rainwater falling on the underground waste dissolves
    the "soluble components in that waste to form leachate."
    Garrett testified that the leachate from Phase II contained
    "[i]ndustrial solvents that are soluble in water."
    In the case of landfill gas, Garrett offered three
    explanations as to how the groundwater could have become
    contaminated.   The gas "moves from areas of high pressure to
    13
    Initially, the hearing was to resolve disputed facts
    relevant to the County's plea in bar. The trial court, however,
    used the testimony and documents presented at that hearing,
    along with discovery responses, in ruling on the cross-motions
    for summary judgment. The court's use of those materials is not
    challenged on appeal.
    14
    In the SWMR, the term " '[l]eachate' means a liquid that
    has passed through or emerged from solid waste and contains
    soluble, suspended, or miscible materials from such waste.
    [L]eachate that has contaminated groundwater is regulated as
    contaminated groundwater." 9 VAC § 20-81-10.
    9
    areas of low pressure . . . in any direction."     When that gas
    "gets in direct contact with the groundwater," the groundwater
    will become contaminated.    Landfill gas can also contaminate
    groundwater through condensation.      Because it is "quite warm,"
    landfill gas will condense when it comes into contact with
    cooler soil, thus forming a condensate composed of the landfill
    gases on the soil.   This condensation will then "move downwards
    with the percolating [rainwater] toward the water table."
    Finally, the rainwater may absorb the landfill gas if it comes
    into contact with the gas.
    Jeffrey D. Marshall also testified for the County as an
    expert in waste management and geology hydrology.     Marshall
    stated Phase II was a "trench-and-fill sort of landfill," where
    waste was placed into trenches.    When precipitation comes into
    contact with the waste, it migrates through the waste and
    "pick[s] up soluble constituents."     Without a plastic liner on
    the bottom of the Landfill, 15 the rainwater percolates through
    the soil and directly into the groundwater.     Marshall also
    explained contamination through landfill gas, stating that the
    organic components of the waste degrade and form gas, which then
    migrated carrying the "trace concentrations of those VOCs with
    15
    At the time the Landfill was built, solid waste disposal
    facilities were not required to install an underground plastic
    liner.
    10
    it."    Rainwater then percolates down and picks up some of the
    trace concentrations, carrying them down to the groundwater.
    Marshall stated that the majority of the VOCs detected in
    the contaminated groundwater from Phase II were chlorinated
    solvents "commonly used in industry at the time" and often found
    in leachate in the groundwater around unlined landfills.
    Likewise, the other non-chlorinated VOCs, such as benzene, were
    "common constituents used in gasoline" and "commonly detected at
    all unlined landfills."
    After the evidentiary hearing, the trial court issued a
    letter opinion, concluding that no material facts were genuinely
    in dispute as to the migration of benzene from the Landfill onto
    the Royals' property. 16   The court further stated there was no
    dispute that benzene is a liquid hydrocarbon.    Thus, the court
    held that "on the basis of benzene alone being in the
    contaminated groundwater, the County is liable for any damages
    to the property of the Royals under the provisions of Code
    § 62.1-44.34:18(C)."   Based on the definition of the term "oil"
    in Code § 62.1-44.34:14, which includes "all other liquid
    hydrocarbons regardless of specific gravity," the court further
    concluded that the chlorinated hydrocarbons found in the
    16
    At a prior hearing on the cross-motions for summary
    judgment and the County's plea in bar, the trial court stated
    that the Oil Discharge Law, specifically Code § 62.1-
    44.34:18(C), applies in this case.
    11
    groundwater, "just as benzene, come within the provisions of
    Code § 62.1-44.32:18(C)."
    With regard to the claim for inverse condemnation, the
    trial court concluded that "[t]he migration of contaminants from
    the [L]andfill into the groundwater on the Royal[s'] property
    makes [the] County liable for any damage or diminution of value
    for the Royal[s'] property."      Thus, the trial court sustained
    the Royals' motion and granted summary judgment against the
    County, holding it liable on both the Oil Discharge Law and
    inverse condemnation claims asserted by the Royals.
    Following an eight-day trial on the sole issue of damages,
    a jury returned a verdict for the Royals in the amount of $9
    million.   The trial court overruled the County's post-trial
    motion to set aside the verdict and entered judgment in
    accordance with the jury's verdict and also awarded the Royals
    attorneys' fees and costs in accordance with Code § 62.1-
    44.34:18(F).   We awarded the County this appeal.
    II.    ANALYSIS
    A.   Issues and Standard of Review
    On appeal, the County assigns error to the trial court's
    judgment on several grounds.      The dispositive issue, however, is
    whether the trial court, in granting summary judgment, erred by
    holding that the contamination of groundwater beneath Phase II
    by the passive, gradual seepage of leachate and landfill gas and
    12
    the subsequent migration of that contaminated groundwater onto
    the Royals' property subjected the County to liability under
    Code § 62.1-44.34:18(C) of the Oil Discharge Law.    See Andrews
    v. Ring, 
    266 Va. 311
    , 318, 
    585 S.E.2d 780
    , 783 (2003)("Summary
    judgment upon all or any part of a claim may be granted to a
    party entitled to such judgment when no genuine issue of
    material fact remains in dispute, and the moving party is
    entitled to judgment as a matter of law.").     Answering this
    question requires an examination of both the Virginia Waste
    Management Act, Code §§ 10.1-1400 through -1457 (VWMA), and the
    Oil Discharge Law.   Because this issue involves the
    interpretation of these relevant statutes, it is a pure question
    of law this Court reviews de novo.    Renkey v. County Board, 
    272 Va. 369
    , 373, 
    634 S.E.2d 352
    , 355 (2006).
    B.   Relevant Statutes
    1. The VWMA
    First passed in 1986, the VWMA requires any person who
    wishes to operate a "sanitary landfill or other facility for the
    disposal, treatment or storage of nonhazardous solid waste" to
    obtain a permit from the DEQ director.     1986 Acts ch. 492; Code
    § 10.1-1408.1(A).    The DEQ director can amend or revoke a permit
    if the permit holder has violated any regulation that resulted
    in a release of harmful substances, maintained or operated a
    facility in such a manner as to pose a hazard to human health or
    13
    the environment, or if leachate from the landfill poses "a
    substantial threat of contamination or pollution of the air,
    surface waters, or [groundwater]."    Code § 10.1-1409(4).
    Under the VWMA, the Virginia Waste Management Board (the
    Board) is authorized to "[s]upervise and control waste
    management activities in the Commonwealth."    Code § 10.1-
    1402(1).    Among other things, the Board is charged with:
    requiring maintenance of certain records and reporting systems,
    Code § 10.1-1402(7); promulgating and enforcing regulations, -
    1402(11); taking "actions to . . . clean up sites . . . where
    solid or hazardous waste" has been "improperly managed," -
    1402(19); and abating "hazards and nuisances dangerous to public
    health, safety, or the environment . . . created by the improper
    disposal, treatment, storage, transportation or management of
    substances within the jurisdiction of the Board," -1402(21).    In
    the event that hazardous or solid waste has been "improperly
    managed," the Board is authorized "to contain or clean up sites"
    and may institute legal proceedings to recover the costs of such
    "containment or clean-up activities from the responsible
    parties."    Code § 10.1-1402(19).
    Pursuant to its authority under Code § 10.1-1402(11), the
    Board has promulgated extensive regulations governing solid
    waste management.    The purpose of the SWMR is "to establish
    standards and procedures pertaining to the management of solid
    14
    wastes by providing the requirements for siting, design,
    construction, operation, maintenance, closure, and postclosure
    care of solid waste management facilities in the Commonwealth in
    order to protect the public health, public safety, the
    environment, and our natural resources."   9 VAC § 20-81-25(A).
    Any person who operates a facility for the disposal, treatment,
    or storage of solid waste without a permit, or violates the SWMR
    or other laws with respect to the disposal or management of
    solid waste, is required to cease such activity and "initiate
    such removal, cleanup, or closure in place."   9 VAC § 20-81-
    40(D).   In addition to obtaining a permit, an owner or operator
    of a solid waste management facility is required to provide
    "financial assurance" for the "closure, post-closure care and
    corrective action at [such facility.]"   9 VAC § 20-81-90(C); 9
    VAC § 20-70-30.
    Although Phase II was permitted prior to the existence of
    the requirement, a solid waste management facility must now
    contain a "bottom liner," the specifications for which are
    outlined in the SWMR, to protect from and collect the leachate
    produced by the facility.    See 9 VAC § 20-81-130(J).   In
    addition, such facility is required to estimate the quality and
    quantity of leachate to be produced annually, devise a leachate
    collection system, and design and plan for the handling, storage
    and treatment of leachate.   9 VAC § 20-81-210(A).
    15
    "To provide for the protection of public health and safety,
    and the environment," the operator of a solid waste management
    facility must "ensure that decomposition gases generated at a
    landfill are controlled during the periods of operation, closure
    and postclosure care."   9 VAC § 20-81-200(A)(1).   The operator
    must also "implement a gas monitoring program at the landfill,"
    and the "monitoring network" must be "designed to ensure
    detection of the presence of decomposition gas migrating beyond
    the landfill facility boundary and into landfill structures."
    9 VAC § 20-81-200(B)(1).
    Of particular importance to the present case, "[o]wners and
    operators of all existing landfills shall be in compliance with
    the groundwater monitoring requirements specified in this
    section."   9 VAC § 20-81-250(A)(1)(a).   Those requirements
    include the specification that such owners or operators "shall
    install, operate, and maintain a groundwater monitoring system
    that is capable of determining the landfill's impact on the
    quality of groundwater in the uppermost aquifer at the disposal
    unit boundary during the active life and postclosure care period
    of the landfill."   9 VAC § 20-81-250(A)(2)(a).   The system must
    contain "a sufficient number of monitoring wells" to sample and
    analyze groundwater quality, including the groundwater quality
    "at the disposal unit boundary."     9 VAC § 20-81-250(A)(3)(a)(2).
    The SWMR includes a "Groundwater Solid Waste Constituent
    16
    Monitoring List" (Monitoring List), which contains many of the
    constituents found in the groundwater at issue in this case,
    including benzene.   9 VAC § 20-81-250, tbl. 3.1.   If testing
    reveals a "statistically significant increase" above background
    values, the owner or operator of the facility must propose GPS
    "for all detected Table 3.1 Column B constituents."   9 VAC § 20-
    81-250(A)(6); see also 9 VAC § 20-81-250(B)(3)(d).    If
    additional testing again reveals "statistically significant
    levels" above the GPS, the owner or operator must notify DEQ
    within 14 days and implement a "corrective action program."
    9 VAC § 20-81-250(B)(2)(b)(1); see also 9 VAC § 20-81-260(A).
    When a corrective action program is required, the owner or
    operator of a landfill initially must: install additional
    monitoring wells; notify all persons who own or reside on land
    that overlies the release of contaminants; "initiate an
    assessment of corrective measures or a proposal for presumptive
    remedy"; provide an additional $1 million in financial
    assurance; and hold a public meeting to discuss the corrective
    measures assessment or proposal for presumptive remedy.    9 VAC
    § 20-81-260(C)(1).   As part of the assessment of corrective
    measures, the owner or operator must select a remedy that, inter
    alia, protects "human health and the environment," attains the
    GPS, and controls "the sources of releases so as to reduce or
    eliminate . . . further releases of solid waste constituents
    17
    into the environment."      9 VAC § 20-81-260(C)(3)(c).   After DEQ
    has reviewed the proposed remedy, the owner or operator must
    submit to DEQ a corrective action plan.      9 VAC § 20-81-260(D).
    Any groundwater monitoring to be employed in the corrective
    action plan must determine the "horizontal and vertical extent
    of the plume of contamination for constituents at statistically
    significant levels exceeding background concentrations."      9 VAC
    § 20-81-260(D)(1)(c). 17
    At the time of closing a landfill, the owner or operator
    "shall eliminate the post closure escape of uncontrolled
    leachate or of waste decomposition products to the groundwater
    or surface water to the extent necessary to protect human health
    and the environment."      9 VAC § 20-81-160(A); see also 9 VAC
    § 20-70-90(A).   Postclosure care requirements include
    maintaining the leachate collection system, the groundwater
    monitoring system, and the gas monitoring system.      9 VAC § 20-
    81-170(A)(1).
    17
    DEQ required the County to submit a corrective action
    plan for the treatment of the on-site and off-site contaminated
    groundwater.
    18
    2. Oil Discharge Law
    The Oil Discharge Law, which is found in Article 11 of the
    Water Control Law, falls under the purview of the State Water
    Control Board.     See Code §§ 62.1-44.3; -44.15.   And in contrast
    to the breadth of the VWMA when first enacted, the original Oil
    Discharge Law, enacted in 1973, 18 contained only two sections.
    Former Code § 62.1-44.34:1 defined the terms "discharge," "oil,"
    "oil refinery," and "vessel," and former Code § 62.1-44.34:2
    contained the following liability provision:
    Any person, firm or corporation owning or
    operating an oil refinery or any vessel while
    within State waters, which permits or suffers a
    discharge of oil into such waters, shall be
    liable to the Commonwealth of Virginia for all
    costs of cleanup or property damage incurred by
    the State or a political subdivision thereof, and
    any person showing damage to his property
    resulting from such discharge. In any suit to
    enforce the claims under this article, it shall
    not be necessary for the State, political
    subdivision, or person showing property damage,
    to plead or prove negligence in any form or
    manner on the part of the oil refinery or vessel.
    In 1976, the General Assembly deleted the term "oil
    refinery" from that statute and replaced it with the term
    "facility," which it defined as "any development or installation
    . . . that deals in or handles oil, petroleum or any petroleum
    product or by-product."     1976 Acts ch. 51.   In 1978, the Oil
    Discharge Law was amended, inter alia, to impose a cap on
    18
    See 1973 Acts ch. 417.
    19
    damages in the absence of negligence, grant the Water Control
    Board the authority to abate and contain a discharge of oil if
    the responsible party could not be identified, and require the
    "person, firm or corporation owning or operating any facility,
    vessel or vehicle from which there is a discharge of oil" to
    report such discharge to the Water Control Board.    1978 Acts ch.
    816 (enacting former Code § 62.1-44.34:4).    In addition, the
    General Assembly expanded the liability provision from a
    "person, firm or corporation" that owned a facility or vessel,
    to "[a]ny person, firm or corporation causing or permitting a
    discharge of oil into State waters, or owning or operating any
    facility, vessel or vehicle from which there is a discharge of
    oil."     Id. (amending former Code § 62.1-44.34:2(A)).
    In 1990, the General Assembly specifically defined the term
    "person" as "any firm, corporation, association or partnership,
    one or more individuals, or any governmental unit or agency
    thereof."    1990 Acts ch. 917 (enacting Code § 62.1-44.34:14).
    At that time, the General Assembly also added provisions
    relating to financial responsibility and oil discharge
    contingency plans, as well as "Exemptions" and "Exceptions."
    Id. (enacting Code §§ 62.1-44.34:16 and -44:34:17, and amending
    Code § 62.1-44.34:23).    The "Exemptions" provision relieved
    facilities and vessels with smaller storage and handling
    capacities from the requirements of filing an oil discharge
    20
    contingency plan and complying with the financial responsibility
    requirements.   Id.   The "Exceptions," meanwhile, precluded the
    application of any part of the Oil Discharge Law to several
    categories of unintentional discharges:
    (i) normal discharges from properly functioning
    vehicles and equipment, marine engines, outboard
    motors or hydroelectric facilities; (ii)
    accidental discharges from farm vehicles or
    noncommercial vehicles; (iii) accidental
    discharges from the fuel tanks of commercial
    vehicles or vessels that have a fuel tank
    capacity of 150 gallons or less; (iv) discharges
    authorized by a valid permit issued by the Board
    . . . ; (v) underground storage tanks regulated
    under a state program. . . .
    Code § 62.1-44.34:23 (as amended by 1990 Acts ch. 917).
    The provision of the Oil Discharge Law under which the
    trial court held the County liable currently provides:
    Any person discharging or causing or
    permitting a discharge of oil into or upon state
    waters . . . within the Commonwealth, discharging
    or causing or permitting a discharge of oil which
    may reasonably be expected to enter state waters
    . . . and any operator of any facility, vehicle
    or vessel from which there is a discharge of oil
    into or upon state waters, . . . shall be liable
    to:
    . . . .
    4. Any person for injury or damage to
    person or property, real or personal, loss of
    income, loss of the means of producing income, or
    loss of the use of the damaged property for
    recreational, commercial, industrial,
    agricultural or other reasonable uses, caused by
    such discharge.
    21
    Code § 62.1-44.34:18(C).   The liability provision also: allows
    the recovery of attorneys' fees and costs, Code §§ 62.1-
    44.34:18(F); imposes strict liability, -44.34:18(E); and
    requires any person or operator to implement "any applicable oil
    spill contingency plan" or take other action to contain and
    clean up a discharge, -44.34:18(B).
    The term "[o]il" is defined as "oil of any kind and in any
    form, including, but not limited to, petroleum and petroleum by-
    products, fuel oil, lubricating oils, sludge, oil refuse, oil
    mixed with other wastes, crude oils and all other liquid
    hydrocarbons regardless of specific gravity."    Code § 62.1-
    44.34:14.   The term "[p]erson," still defined according to the
    1990 amendment, includes "one or more individuals, or any
    governmental unit or agency thereof."    Id.   The term
    "[d]ischarge" is "any spilling, leaking, pumping, pouring,
    emitting, emptying or dumping."    Id.
    In the event of a discharge of oil, "any [person or]
    operator of any facility, vehicle or vessel from which there is
    a discharge" is required to immediately notify, among others,
    the Water Control Board.   Code § 62.1-44.34:19.   Upon finding a
    violation of the Oil Discharge Law, the Water Control Board may,
    inter alia, seek injunctive relief and recover "costs, damages
    and civil penalties."   Code § 62.1-44.34:20(B).   A person who
    "negligently" or "knowingly and willfully" discharges oil in
    22
    violation of the Oil Discharge Law can be convicted of a
    misdemeanor or a felony, respectively.    Code § 62.1-44.34:20(E).
    The remaining provisions of the Oil Discharge Law relate to
    facilities, operators, storage tanks, and vessels.    In
    particular, Code § 62.1-44.34:15.1 authorizes the Water Control
    Board to promulgate regulations for aboveground storage tanks,
    and includes specific provisions to be included, while Code
    § 62.1-44.34:19.1 requires the registration of aboveground
    storage tanks.     Pursuant to Code § 62.1-44.34:15(A), "[n]o
    operator shall cause or permit the operation of a facility . . .
    unless an oil discharge contingency plan applicable to the
    facility has been filed."    The term "[f]acility" is "any
    development or installation within the Commonwealth that deals
    in, stores or handles oil, and includes a pipeline."    Code
    § 62.1-44.34:14.    The provisions of Code § 62.1-44.34:16 require
    the operators of facilities and tank vessels to establish and
    maintain financial responsibility against a discharge.
    Similarly, the Oil Discharge Law's exemptions and
    exceptions also apply to certain categories of vessels, storage
    tanks, and facilities.    The exemptions, listed in Code § 62.1-
    44.34:17, relieve facilities, tanks, and vessels with smaller
    storage and handling capacities from the oil contingency and
    financial responsibility provisions; exclude "nonpetroleum
    hydrocarbon-based animal and vegetable oils" from the definition
    23
    of oil for the purposes of the oil contingency plan and
    financial responsibility provisions; and relieve aboveground
    storage tanks with smaller storage capacity and facilities that
    do not resell oil from their aboveground storage tanks from the
    requirements of Code § 62.1-44.34:15.1.   The current exceptions,
    which exclude all coverage under the Oil Discharge Law, add to
    the 1990 amendment an exception for "releases from underground
    storage tanks . . . regardless of when the release occurred."
    Code § 62.1-44.34:23(A)(vi).
    The Virginia Administrative Code reflects a similar focus
    on storage tanks, vessels, and facilities.   The regulations
    governing the Water Control Board contain two chapters dealing
    with the Oil Discharge Law: Chapter 91, titled "Facility and
    Aboveground Storage Tank (AST) Regulation," 9 VAC § 25-91-10, et
    seq.; and Chapter 101, titled "Tank Vessel Oil Discharge
    Contingency Plan and Financial Responsibility Regulation," 9 VAC
    § 25-101-10, et seq.   As their titles suggest, these regulations
    apply only to aboveground storage tanks, facilities, and
    vessels.   See 9 VAC § 25-91-20; 9 VAC § 25-101-20.
    C.   Applicability of Oil Discharge Law
    According to the record at the summary judgment stage of
    this action, Phase II "release[d] solid waste constituents
    [which] impacted the groundwater in the uppermost aquifer
    beneath the facility."   The "single plume of impacted
    24
    groundwater" contained two prongs, one of which extended onto
    the Royals' property and impacted the Park's water supply wells.
    According to the NES, the groundwater contamination was caused
    by both landfill gas and leachate.   Expert testimony established
    that leachate is formed when rainwater dissolves the "soluble
    components in [the] waste."   One of the expert witnesses also
    explained that landfill gas can contaminate groundwater through
    landfill gas condensation on the soil being carried downward by
    rainwater, movement of landfill gas to areas of lower pressure
    where it then contacts the groundwater, or rainwater's absorbing
    landfill gas when it comes into contact with it.   This natural
    movement of leachate and landfill gas directly into the
    groundwater was possible because Phase II was not required to
    have a bottom liner.   Additionally, the migration of the
    northern prong of the plume was "contrary to the expected
    groundwater flow direction based on the potentiometric surface
    geometry."
    These occurrences fall squarely within the ambit of the
    VWMA and SWMR.   That is, the VWMA and SWMR extensively govern
    the operation of a solid waste disposal facility and impose
    requirements designed to protect groundwater and to prevent
    seepage of leachate and landfill gas into the groundwater.
    Even though Phase II was closed in 1995, the County was
    required to install and maintain "a groundwater monitoring
    25
    system that [was] capable of determining [Phase II's] impact on
    the quality of groundwater in the uppermost aquifer at the
    [Landfill's] boundary during the . . . postclosure care period."
    9 VAC § 20-81-250(A)(2)(a).   Indeed, the Notice of Violation
    issued by DEQ to the County asserted that the County's
    groundwater monitoring system for the closed Phase II did not
    ensure detection of contaminated groundwater in the uppermost
    aquifer at the northern boundary between the Landfill and the
    Royals' property.
    In addition to maintaining a groundwater monitoring system
    after closure of a solid waste disposal facility, the SWMR also
    require the owner or operator of a landfill to maintain both the
    leachate collection system and the landfill gas monitoring
    system, as applicable, during the postclosure period.    That
    period is "a minimum of 10 years for sanitary landfills that
    ceased to accept wastes before October 9, 1993" and "a minimum
    of 30 years" for those that "received wastes on or after October
    9, 1993."   9 VAC § 20-81-170(B)(2).
    Given the specific and all-embracing coverage under the
    VWMA and SWMR of the occurrences at issue in this case, we
    conclude that the General Assembly intended such occurrences to
    be governed exclusively by the VWMA.   Cf. City of Lynchburg v.
    Dominion Theatres, Inc., 
    175 Va. 35
    , 43, 
    7 S.E.2d 157
    , 160
    (1940) (legislation manifesting the "intention to occupy the
    26
    entire field [was] found in the very statutes themselves when
    considered as a whole").    We thus disagree with the trial
    court's conclusion that the Oil Discharge Law applies to the
    specific groundwater contamination in this case.    Simply put,
    the Oil Discharge Law does not contemplate the passive, gradual
    seepage of leachate and landfill gas into groundwater beneath a
    solid waste disposal facility.
    The Oil Discharge Law falls under the authority of the
    Water Control Board, rather than the Waste Management Board, and
    contains entirely different procedures in the event of a
    discharge of oil. 19   See Code §§ 62.1-44.34:19, -44.34:20.   Upon
    a discharge of oil, the person or operator responsible must
    notify immediately the Water Control Board, implement any
    applicable oil spill contingency plan, and take action to
    contain and clean up the discharge.    Code §§ 62.1-44.34:19, -
    44.34:18(B).   Unlike many oil discharges, the groundwater
    contamination in this case, whenever it initially occurred, was
    not immediately known.    It became known years after Phase II was
    closed as a result of the continued groundwater monitoring
    required by the SWMR.    Only after testing revealed statistically
    significant increases of constituents in the Monitoring List
    19
    Both the State Water Control Board, see Code § 62.1.44.7,
    and the Department of Waste Management, see Code § 10.1-1401,
    are within the DEQ. Code § 10.1-1183.
    27
    above the previously established GPS was the County required to
    notify DEQ and implement a corrective action program.   9 VAC
    § 20-81-250(B)(2)(b)(1); see also 9 VAC § 20-81-260(A).
    Most striking, however, is the contrast between the
    extensive regulations under the VWMA governing a solid waste
    disposal facility's groundwater monitoring and leachate control
    and the lack of any regulations under the Oil Discharge Law that
    are applicable to a such a facility.    If the General Assembly
    had intended the Oil Discharge Law to apply to occurrences such
    as those in this case, regulations governing the seepage of
    "liquid hydrocarbons regardless of specific gravity" via
    leachate and landfill gas into groundwater would be in place.
    Code § 62.1-44.34:14.
    The Royals urge this Court to focus only on Code § 62.1-
    44.34:18 and can point to no other provision of the Oil
    Discharge Law that applies to the County's operation of the
    Landfill.   Because the meaning of "person" as used in that
    statute includes a "governmental unit," they argue, the County
    is subject to liability in this case.   The Royals are correct
    that the County comes within the meaning of the term "person."
    See Code § 62.1-44.34:14.   But citing the meaning of "person"
    does not respond to the question posed by the peculiar facts in
    this case: whether the contamination of groundwater by the
    passive, gradual seepage of leachate and landfill gas falls
    28
    within the purview of the Oil Discharge Law or is governed
    solely by the VWMA. 20   We must answer that question without
    stripping the liability provision, Code § 62.1-44.34:18, from
    the larger legislative context in which the General Assembly
    placed it.   See, e.g., Shivaee v. Commonwealth, 
    270 Va. 112
    ,
    124, 
    613 S.E.2d 570
    , 577 (2005) (applicability of statute was
    clear when read in context of other provisions in the same act).
    Based on the examination of these two statutory schemes, we
    conclude that the Oil Discharge Law does not apply to the
    contamination of groundwater as it occurred in this case, i.e.,
    by the passive, gradual seepage of leachate and landfill gas
    from Phase II into the groundwater beneath it.    Thus, we will
    reverse the judgment of the trial court holding the County
    liable under the Oil Discharge Law.
    That conclusion, however, does not end our analysis.       As
    stated above, the trial court granted summary judgment, finding
    the County liable under both the Oil Discharge Law and inverse
    condemnation claims asserted by the Royals.    Citing this, the
    Royals contend that based on the County's liability for inverse
    condemnation alone, which is not challenged on appeal, they are
    entitled to the jury's award of damages even if the trial court
    20
    Nor is the question answered by the provision in the
    County's permit to operate the Landfill, stating that
    "[c]ompliance with the terms of this permit does not constitute
    a defense to . . . any other law or regulation." See also Code
    § 10.1-1408.1(F).
    29
    erred by holding the County liable under the Oil Discharge Law.
    The County, meanwhile, asserts the Royals failed to proceed on
    their inverse condemnation claim at the jury trial on the issue
    of damages.
    At the commencement of that jury trial, the trial court
    instructed the jury that it had granted summary judgment in
    favor of the Royals against the County on the issue of liability
    under both the inverse condemnation claim and the discharge of
    oil claim.    Following the presentation of evidence, the Royals
    only offered one instruction on damages (Instruction 1).     That
    instruction read:
    In determining the damages to which the
    plaintiff is entitled, if any, you should
    consider any of the following which you believe
    by the greater weight of the evidence was caused
    by the defendant:
    (1) Any damage to property, real or
    personal;
    (2)   Any loss of income;
    (3) Any loss of the means of producing
    income; or
    (4) Any loss of the use of the damaged
    property for recreational, commercial,
    industrial, agricultural or other reasonable
    uses.
    This instruction mirrors almost verbatim the Oil Discharge
    Law's damages provision.     Code § 62.1-44.34:18(C)(4).   That
    statute authorizes damages for "injury or damage to person or
    property, real or personal, loss of income, loss of the means of
    30
    producing income, or loss of the use of the damaged property for
    recreational, commercial, industrial, agricultural or other
    reasonable uses."   Id.   The similarity of language makes
    apparent that Instruction 1 pertained to the Royals' claim under
    the Oil Discharge Law, not their inverse condemnation claim.
    Furthermore, Instruction 1 does not contain the proper
    measure of damages for inverse condemnation.   "The correct
    measure of damages, in all [cases for damaging or taking without
    just compensation], is undoubtedly the diminution in value of
    the property by reason of the change, or the difference in value
    before and after the change."   Town of Galax v. Waugh, 
    143 Va. 213
    , 229, 
    129 S.E. 504
    , 509 (1925); see Richmeade, L.P. v. City
    of Richmond, 
    267 Va. 598
    , 603, 
    594 S.E.2d 606
    , 609 (2004)
    (measurement of damages for inverse condemnation is "based on a
    decline in the value of the subject property").   Instruction 1's
    phrase "[a]ny damage to property, real or personal" does not
    necessarily mean only "diminution in value."
    In this case, the former could encompass the replacement
    value of the contaminated groundwater, about which one of the
    Royals' expert witnesses testified.   The witness opined that the
    replacement cost of the contaminated groundwater that was the
    source of drinking water to the Park residents was $2 million.
    Diminution in value of real property is not replacement value.
    Given the difference between Instruction 1 and the proper
    31
    measure of damages for inverse condemnation, the jury's award of
    damages was limited to the Royals' claim under the Oil Discharge
    Law.   Therefore, contrary to the Royals' contention, there is no
    independent basis for the jury's damage award to which the
    County failed to assign error on appeal.     See United Leasing
    Corp. v. Thrift Ins. Corp., 
    247 Va. 299
    , 308, 
    440 S.E.2d 902
    ,
    907 (1994) (no relief on appeal if appellants fail to assign
    error to an independent ground adopted by the trial court for
    its ruling).
    The Royals' failure to offer a jury instruction addressing
    the measure of damages for their inverse condemnation claim is
    also evident from a post-trial colloquy between the trial court
    and the parties.   After trial, the County moved to amend the
    final order to reflect that the Royals' inverse condemnation
    claim did not go to the jury.   The Royals maintained, as they do
    here, that Instruction 1 covered inverse condemnation damages.
    The trial court disagreed, stating that if it had been an
    inverse condemnation case, the court would have instructed the
    jury that it could "award the [Royals] damages for the
    difference between the value of the property before the taking
    and the value after the taking."      Instruction 1, the trial court
    stated, was not "put in those terms."     The trial court
    concluded:
    32
    [T]he [c]ourt gave only the damage instruction
    under the [Oil Discharge Law] because that's what
    the evidence supported [and] had the instruction
    been offered . . . there's probably a good chance
    that the [c]ourt would not have sent that issue
    to the Jury. I sent the issue to the Jury that
    the evidence supported.
    This colloquy confirms what is already apparent: the Royals
    pursued only their claim under the Oil Discharge Law at the jury
    trial on the issue of damages.
    In sum, the Royals abandoned their inverse condemnation
    claim by offering Instruction 1 as the sole damages instruction.
    Although the trial court, in its summary judgment ruling, found
    the County liable under inverse condemnation, Instruction 1 did
    not encompass the proper measure of damages for that claim.    As
    the law of this case, Instruction 1 binds both this Court and
    the Royals in this appeal.   See Wintergreen Partners, Inc. v.
    McGuireWoods, LLP, 
    280 Va. 374
    , 379, 
    698 S.E.2d 913
    , 916 (2010).
    Therefore, having reversed the trial court's judgment holding
    the County liable under the Oil Discharge Law, there is no basis
    on which the Royals can pursue their inverse condemnation claim
    or retain the jury's award of damages.
    33
    III. CONCLUSION
    Because we conclude that the trial court erred in awarding
    summary judgment to the Royals and finding the County liable
    under the Oil Discharge Law, we will reverse the trial court's
    judgment.   Further, because there is no unchallenged,
    independent basis for the jury's award of damages, we will enter
    final judgment for the County.
    Reversed and final judgment.
    JUSTICE POWELL, with whom JUSTICE LEMONS joins, dissenting.
    I respectfully disagree with the majority's conclusion that
    the State Water Control Law, Code §§ 62.1-44.2 through -44.34:28
    (the Water Control Law), specifically Code § 62.1-44.34:18(C) of
    the "Discharge of Oil into Waters" Law, Code §§ 62.1-44.34:14
    through -44.34:23 (the Oil Discharge Law), does not apply to the
    leachate contamination at issue in this case.
    Here, the circuit court found that the County admitted that
    benzene is a "pure liquid hydrocarbon." 1   The circuit court
    1
    Although it does not appear from the parties' admissions
    that the County specifically admitted that benzene was a "pure
    liquid hydrocarbon," the County did not assign error to this
    finding and as such, we cannot disturb that finding on appeal.
    Rule 5:17(c)(1)(i). The County further admitted that benzene is
    a hydrocarbon and an aromatic hydrocarbon. Moreover, benzene is
    a "colorless, liquid, inflammable, aromatic hydrocarbon . . . ."
    2 Charles K. Bradsher, Benzene, McGraw-Hill Encyclopedia of
    Science & Technology 695 (10th ed. 2007)(emphasis added); see
    also Webster's Third New International Dictionary 205
    34
    stated in its letter opinion, "on the basis of benzene alone
    being in the contaminated groundwater, the County is liable for
    any damages to the property of the Royals under the provisions
    of Code § 62.1-44.34:18(C)."   Therefore, I would affirm the
    ruling for the following reasons: 1) the Oil Discharge Law by
    its terms demonstrates its broad scope through its stated
    purpose and exceptions, 2) the plain reading of the Code
    captures the facts at issue here, 3) the County's "CERCLA
    petroleum exception" argument is not preserved, and 4) if the
    admission of Dr. Vittorio Bonomo's testimony as to “the damages
    . . . that the Royals have suffered as a result of the
    contamination” was error, it most certainly was harmless.
    SCOPE OF THE OIL DISCHARGE LAW
    Although Virginia has not addressed the issue of whether
    the Water Control Law applies to landfills that are also
    governed by the VWMA and the SWMR, there is nothing in the
    statutory scheme of the Water Control Law, or the Oil Discharge
    Law specifically, that precludes the application of these laws
    to the facts presented here.   Indeed, the contrary is true.   The
    expressed purpose of the Water Control Law is to
    (1) protect existing high quality state waters
    and restore all other state waters to such
    condition of quality that any such waters will
    (1993)(defining "benzene" as "a colorless volatile flammable
    toxic liquid aromatic hydrocarbon . . . .")
    35
    permit all reasonable public uses and will
    support the propagation and growth of all aquatic
    life, including game fish, which might reasonably
    be expected to inhabit them; (2) safeguard the
    clean waters of the Commonwealth from pollution;
    (3) prevent any increase in pollution; (4) reduce
    existing pollution; (5) promote and encourage the
    reclamation and reuse of wastewater in a manner
    protective of the environment and public health;
    and (6) promote water resource conservation,
    management and distribution, and encourage water
    consumption reduction in order to provide for the
    health, safety, and welfare of the present and
    future citizens of the Commonwealth.
    Code § 62.1-44.2.   The statutory scheme specifically states that
    "[t]his Chapter is intended to supplement existing laws and no
    part thereof shall be construed to repeal any existing laws
    specifically enacted for the protection of health . . . ."    Code
    § 62.1-44.6 (emphasis added).
    The scope of the Act is broad.   This Court has previously
    considered the scope of the Water Control Law.   Commonwealth ex
    rel. State Water Control Board v. County Utilities Corp., 
    223 Va. 534
    , 539, 
    290 S.E.2d 867
    , 870 (1982).   There, in the context
    of a sewage treatment plant, we stated:
    The powers and duties of the Board are to be
    found in the State Water Control Law, c. 3.1 of
    Title 62.1 of the Code, (§ 62.1-44.2, et seq.).
    The Board's declared purposes are to reduce
    existing pollution, prevent increased pollution,
    and safeguard the clean waters of the State from
    pollution. § 62.1-44.2. It is required to make
    appropriate studies of water quality and, after
    due notice and hearing, to establish and enforce
    standards of water quality. § 62.1-44.15. The
    discharge of wastes into the State waters is to
    be limited by certificates issued by the Board,
    36
    and subject to the conditions contained therein.
    Such certificates may be modified, amended, or
    revoked by the Board from time to time, after due
    notice and hearing. § 62.1-44.5 and § 62.1-
    44.15(5). Sewage treatment is regulated by
    Article 4 (§ 62.1-44.18, et seq.), which provides
    that such treatment plants shall be under the
    joint supervision of the Board and the State
    Department of Health. The Board has the power to
    amend, revoke, and modify discharge certificates
    to assure compliance with its established water
    control standards. § 62.1-44.19.
    Id.
    While not binding on this Court, I find a subsequent
    decision from the United States District Court for the Eastern
    District of Virginia that considered these code sections in
    deciding whether strict liability extended to the discharge of
    oil onto private lands, Gollobin v. Air Distributing Co., 
    838 F. Supp. 255
     (E.D. Va. 1993), persuasive as to the expansive
    reach of the Oil Discharge Law.    There, the District Court
    looked at the history of this legislation and noted that
    [u]ntil 1990, liability for the discharge of oil
    was found in Virginia Code §§ 62.1-44.34:2 & :3,
    which only prohibited "a discharge of oil into
    state waters . . ." and "the discharge of oil
    into or upon the waters of the Commonwealth."
    Then, in 1990, the General Assembly enacted
    § 62.1-44.34:14, et. seq., to amend and replace
    §§ 62.1-44.34:2 & :3, which were repealed. The
    amended version of the statute expands the reach
    of the existing legislation beyond state waters
    to include lands and storm drain systems.
    Specifically, the amended statute declares that
    "the discharge of oil into or upon state waters,
    lands, or storm drain systems within the
    Commonwealth is prohibited." Virginia Code
    § 62.1-44.34:18.
    37
    Id. at 256-57 (emphasis added).    The Court concluded that "the
    statute's purpose is to provide the Commonwealth of Virginia or
    any political subdivision thereof or any person with a remedy
    when a discharge of oil causes harm to human health or welfare,
    harm to the environment, or damage to personal or real
    property."   Id. at 258.
    As further evidence of the broad scope of the law, the
    General Assembly chose to exempt several categories of
    unintentional discharges of oil and did not include landfills
    among these exemptions.    Code § 62.1-44.34:23(A).   To conclude
    that this law does not apply would add landfills to the
    exemptions delineated by the General Assembly.    "Courts cannot
    'add language to the statute the General Assembly has not seen
    fit to include.' "   Jackson v. Fid. & Deposit Co., 
    269 Va. 303
    ,
    313, 
    608 S.E.2d 901
    , 906 (2005) (quoting Holsapple v.
    Commonwealth, 
    266 Va. 593
    , 599, 
    587 S.E.2d 561
    , 564-65 (2003)).
    The maxim expressio unius est exclusio alterius
    applies when mention of a specific item in a
    statute implies that omitted items were not
    intended to be included. Turner v. Wexler, 
    244 Va. 124
    , 127, 
    418 S.E.2d 886
    , 887 (1992). "The
    question here is not what the legislature
    intended to enact, but what is the meaning of
    that which it did enact. We must determine the
    legislative intent by what the statute says and
    not by what we think it should have said." Id.
    (quoting Carter v. Nelms, 
    204 Va. 338
    , 346, 
    131 S.E.2d 401
    , 406-07 (1963)).
    38
    Virginian-Pilot Media Cos. v. Dow Jones & Co., 
    280 Va. 464
    , 468-
    69, 
    698 S.E.2d 900
    , 902 (2010).
    Moreover, I note that the State Water Control Board
    ("SWCB") has a regulation that covers landfills.     9 VAC § 25-
    151-190.    This regulation defines "leachate" as a "liquid that
    has passed through or emerged from solid waste and contains
    soluble, suspended, or miscible materials removed from such
    waste[,]"    9 VAC § 25-151-190(C), and specifically requires
    inspections of inactive landfill sites, such as the one at issue
    here.    9 VAC § 25-151-190(D)(2)(c)(2).   Although this regulation
    does not specifically relate to the situation presented by this
    case, it is instructive in demonstrating that monitoring
    landfills is within the purview of the SWCB.
    APPLICATION OF THE OIL DISCHARGE LAW TO THIS CASE
    Given that I would conclude that the Oil Discharge Law does
    apply to the situation presented in this case, I now turn to
    whether Campbell County is liable to the Royals under the Oil
    Discharge Law.    Code § 62.1-44.34:18(C)(4) prohibits
    [a]ny person discharging or causing or
    permitting a discharge of oil into or upon state
    waters, lands, or storm drain systems within the
    Commonwealth, discharging or causing or
    permitting a discharge of oil which may
    reasonably be expected to enter state waters,
    lands, or storm drain systems, or causing or
    permitting a substantial threat of such discharge
    and any operator of any facility, vehicle or
    vessel from which there is a discharge of oil
    into or upon state waters, lands, or storm drain
    39
    systems within the Commonwealth, or from which
    there is a discharge of oil which may reasonably
    be expected to enter state waters, lands, or
    storm drain systems, or from which there is a
    substantial threat of such discharge, shall be
    liable to: . . . . [a]ny person for injury or
    damage to person or property, real or personal,
    loss of income, loss of the means of producing
    income, or loss of the use of the damaged
    property for recreational, commercial,
    industrial, agricultural or other reasonable
    uses, caused by such discharge.
    Under the Oil Discharge Law,
    "Discharge" means any spilling, leaking, pumping,
    pouring, emitting, emptying or dumping.
    "Facility" means any development or installation
    within the Commonwealth that deals in, stores or
    handles oil, and includes a pipeline.
    "Oil" means oil of any kind and in any form,
    including, but not limited to, petroleum and
    petroleum by-products, fuel oil, lubricating
    oils, sludge, oil refuse, oil mixed with other
    wastes, crude oils and all other liquid
    hydrocarbons regardless of specific gravity.
    . . . .
    "Person" means any firm, corporation, association
    or partnership, one or more individuals, or any
    governmental unit or agency thereof.
    Code § 62.1-44.34:14.
    Based on the circuit court's factual finding that benzene
    was a “liquid hydrocarbon[,]” I believe that reversal is
    improper.   Under the clear definitions of the Oil Discharge Law,
    the County clearly qualifies as a "person."   Code § 62.1-
    44.34:14.   A "discharge" includes both "leaking" and "emitting".
    40
    Id.    The circuit court's factual finding that the parties agreed
    that benzene was liquid hydrocarbon places the substance found
    to have been emitted from the Campbell County landfill within
    the Oil Discharge Law's definition of "oil."    The County argues
    that the landfill is not a "facility" within the meaning of the
    Act.   Because the statute is written in the disjunctive, I think
    that this argument is without merit.    The "operator" of a
    "facility" is merely one type of violator, in addition to
    "person" under this Code section.     Thus, I would hold that the
    County is liable under the Oil Discharge Law.
    CAMPBELL COUNTY'S REMAINING ASSIGNMENTS OF ERROR
    Because I would affirm the circuit court's application of
    the Oil Discharge Law to the Campbell County landfill, I must
    now address Campbell County's remaining assignments of error: 1)
    the CERCLA petroleum exclusion contained in 42 U.S.C. § 9658
    applies, 2) the circuit court erred in overruling the County's
    motion to strike Dr. Vittorio Bonomo's testimony as speculative
    and 3) the circuit court erred in denying the County's motion to
    set aside the verdict based on "speculative testimony" that the
    park was worthless.
    Campbell County argues that the "CERCLA petroleum
    exclusion" specifically bars the contaminants at issue here from
    being covered by CERCLA, which would otherwise preempt state law
    by delaying the commencement of a state statute of limitations
    41
    until the plaintiff knows, or reasonably should have known, of
    the contamination damage.    The County acknowledges that this
    argument was not specifically raised in the circuit court.
    However, the County argues that because both the County and the
    Royals cited First United Methodist Church v. United States
    Gypsum Co., 
    882 F.2d 862
    , 866-69 (4th Cir. 1989), in their
    briefs to the circuit court, this preserves the issue for our
    consideration.   As the issue in First United Methodist Church
    dealt with CERCLA's applicability to asbestos-removal actions,
    see 882 F.2d at 866-69, it has no applicability to the CERCLA
    petroleum exclusion.   Moreover, beyond citing to the case, the
    parties made no argument as to how it applied to the facts in
    this case.   For that reason, the County's petroleum exclusion
    argument is not preserved.   Accordingly, I would conclude that
    Rule 5:25 bars our consideration of this issue.
    Turning to the County's evidentiary arguments, even if
    portions of Dr. Bonomo’s testimony were speculative and not
    based on specific, articulable facts, I believe that any error
    in allowing the testimony was harmless. 2
    In Clay v. Commonwealth, 
    262 Va. 253
    , 
    546 S.E.2d 728
     (2001), this Court adopted the following test
    2
    The County also argues before this Court that the
    testimony from Dr. Bonomo was prejudicial. The County never
    argued below that the testimony was prejudicial and, therefore,
    I would also hold that under Rule 5:25, we may not consider that
    argument.
    42
    for non-constitutional harmless error: "If, when
    all is said and done, the conviction is sure that
    the error did not influence the jury, or had but
    slight effect, the verdict and the judgment
    should stand . . . . But if one cannot say, with
    fair assurance, after pondering all that happened
    without stripping the erroneous action from the
    whole, that the judgment was not substantially
    swayed by the error, it is impossible to conclude
    that substantial rights were not affected . . . .
    If so, or if one is left in grave doubt, the
    conviction cannot stand." Id. at 260, 546 S.E.2d
    at 731-32 (quoting Kotteakos v. United States,
    
    328 U.S. 750
    , 764-65 (1946)).
    Atkins v. Commonwealth, 
    272 Va. 144
    , 154, 
    631 S.E.2d 93
    , 98
    (2006).   Dr. Bonomo’s testimony did not add to the numerical
    calculation of damages that was firmly established by other
    experts testimony, and the testimony of another plaintiffs’
    expert, Andrew Flynn, was substantially similar to Dr. Bonomo’s.
    Therefore, I do not believe that the admission of such testimony
    was reversible error.   For the foregoing reasons, I would
    affirm.
    43