Robin Baptiste v. Bethlehem Landfill Company ( 2020 )


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  •                                            PRECEDENTIAL
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    ______________
    No. 19-1692
    ______________
    ROBIN BAPTISTE; DEXTER BAPTISTE,
    On Behalf of Themselves and All Others Similarly Situated,
    Appellants
    v.
    BETHLEHEM LANDFILL COMPANY,
    A Delaware Corporation doing business as IESI PA
    BETHLEHEM LANDFILL
    ______________
    On Appeal from the United States District Court
    for the Eastern District of Pennsylvania
    (D.C. Civil No. 5-18-cv-02691)
    District Judge: Honorable Chad F. Kenney
    ______________
    Argued December 9, 2019
    ______________
    Before: RESTREPO, ROTH and FISHER, Circuit Judges.
    (Filed: July 13, 2020)
    Nicholas A. Coulson [ARGUED]
    Steven D. Liddle
    Liddle & Dubin
    975 East Jefferson Avenue
    Detroit, MI 48207
    Philip J. Cohen
    Kevin S. Riechelson
    Kamensky Cohen & Riechelson
    194 South Broad Street
    Trenton, NJ 08608
    Counsel for Appellants
    Matthew J. Owens [ARGUED]
    Miner Barnhill & Galland
    325 North LaSalle Street Suite 350
    Chicago, IL 60654
    Sarah E. Siskind
    Miner Barnhill & Galland
    44 East Mifflin Street Suite 803
    Madison, WI 53703
    Counsel for Amici Public Interest Law Center and
    Philly Thrive in Support of Appellants
    Eric L. Klein [ARGUED]
    Beveridge & Diamond
    155 Federal Street Suite 1600
    Boston, MA 02110
    2
    Robert M. Donchez
    Robert A. Freedberg
    Florio Perrucci Steinhardt & Cappelli
    60 West Broad Street Suite 102
    Bethlehem, PA 18018
    Michael G. Murphy
    John H. Paul
    Nicole B. Weinstein
    Beveridge & Diamond
    477 Madison Avenue 15th Floor
    New York, NY 10022
    Roy D. Prather, III
    Beveridge & Diamond
    201 North Charles Street Suite 2210
    Baltimore, MD 21201
    James B. Slaughter
    Beveridge & Diamond
    1350 I Street, NW Suite 700
    Washington, DC 20005
    Counsel for Appellee
    John F. Stoviak
    Saul Ewing Arnstein & Lehr
    1500 Market Street
    Centre Square West, 38th Floor
    Philadelphia, PA 19102
    3
    Counsel for Amicus National Waste & Recycling
    Association in Support of Appellee
    Robert L. Byer
    Duane Morris
    600 Grant Street Suite 5010
    Pittsburgh, PA 15219
    John E. Moriarty
    Duane Morris
    30 South 17th Street
    United Plaza
    Philadelphia, PA 19103
    Counsel for Amici Chamber of Commerce of the
    United States of America, Pennsylvania Chamber of
    Business & Industry, and Pennsylvania Farm Bureau
    in Support of Appellee
    ______________
    OPINION OF THE COURT
    ______________
    RESTREPO, Circuit Judge.
    Robin and Dexter Baptiste brought an action against the
    Bethlehem Landfill Company on behalf of a class of
    homeowner-occupants and renters claiming interference with
    the use and enjoyment of their homes and loss in property value
    caused by noxious odors and other air contaminants emanating
    from the Bethlehem landfill. They brought these claims under
    three state-law tort theories: public nuisance, private nuisance,
    and negligence.
    4
    The U.S. District Court for the Eastern District of
    Pennsylvania granted the company’s motion to dismiss the
    complaint. The District Court held that too many residents
    were similarly affected to sustain a private claim for public
    nuisance, that the odors affected too many people and the
    landfill was too far away from them to constitute a private
    nuisance, and that the plaintiffs had failed to identify a duty of
    care to maintain a negligence claim. We disagree, and
    therefore, we will reverse and remand.1
    RELEVANT BACKGROUND
    A. Legal Framework
    Landfill operations in Pennsylvania are governed in part
    by the Commonwealth’s Solid Waste Management Act
    (SWMA). The SWMA was enacted for several purposes
    including to “protect the public health, safety and welfare from
    the short and long term dangers of transportation, processing,
    treatment, storage, and disposal of all wastes,” and to “provide
    a flexible and effective means to implement and enforce the
    provisions of this act.” 35 P.S. § 6018.102(4)-(5). The SWMA
    empowers the Pennsylvania Department of Environmental
    Protection (PADEP or the “department”) to enforce the
    statute’s provisions. 35 P.S. § 6018.104(10)-(11); 35 P.S.
    § 6018.103; 71 P.S. § 1340.501.
    1
    The plaintiffs brought this class action pursuant to
    Federal Rule of Civil Procedure 23. The District Court had
    jurisdiction under the Class Action Fairness Act. 
    28 U.S.C. § 1332
    (d)(2)(A). We have jurisdiction under 
    28 U.S.C. § 1291
    .
    5
    One of the SMWA’s provisions states that “[a]ny
    violation of any provision of this act, any rule or regulation of
    the department, any order of the department, or any term or
    condition of any permit, shall constitute a public nuisance.” 35
    P.S. § 6018.601. Among these rules and regulations is an
    obligation to implement a plan “to minimize and control public
    nuisances from odors,” 
    25 Pa. Code § 273.218
    (b)(1), and to be
    governed by a plan providing for “the orderly extension of
    municipal waste management systems . . . in a manner which
    will not . . . constitute a public nuisance.” 35 P.S.
    § 6018.201(e)(1).
    The SWMA “does not provide for a private cause of
    action” and “private persons may only intervene under the
    SWMA in actions brought by [PADEP].” Centolanza v.
    Lehigh Valley Dairies, Inc., 
    635 A.2d 143
    , 149 (Pa. Super. Ct.
    1993), aff’d, 
    658 A.2d 336
     (Pa. 1995). Notwithstanding this
    limitation, the SWMA includes an express carve out or savings
    clause preserving private “rights of action or remedies”
    existing “under the common law or decisional law or in
    equity.” 35 P.S. § 6018.607.
    B. Plaintiffs’ Action
    The Baptistes are homeowners residing in
    Freemansburg, Pennsylvania, which is located on the west
    bank of the Lehigh River. East of the river is Lower Saucon
    Township, where Bethlehem owns and operates a 224-acre
    solid waste disposal facility and landfill. The landfill is
    permitted to accept up to 1,375 tons of waste daily. As the
    6
    waste decomposes, it releases “odorous landfill gas, leachate
    and other byproducts.”2 JA29 (Compl. ¶ 8).
    In 2018, the Baptistes sued Bethlehem for public
    nuisance, private nuisance, and negligence. The plaintiffs
    asserted these claims on behalf of a putative class of other
    homeowner-occupants and renters in about 8,400 households
    within a 2.5-mile radius of the landfill, claiming property
    damages in excess of $5 million.
    According to the complaint, Bethlehem is not operating
    the landfill in accordance with the SWMA and industry
    standards, causing nearby neighborhoods, homes and yards to
    be “physically invaded by noxious odors, pollutants and air
    contaminants[.]” JA29 (Compl. ¶ 12); see JA32 (Compl. ¶ 27)
    (alleging that Bethlehem “negligently failed to construct,
    maintain and/or operate the landfill, and caused the invasion of
    Plaintiffs’ property by noxious odors, air contaminants, and
    other airborne pollutants”).
    Over the years, residents have complained to PADEP
    and Lower Saucon Township about “odorous emissions” from
    the landfill. JA30 (Compl. ¶ 13). Bethlehem has received
    numerous fines and citations from PADEP and the township
    for its failure to properly manage and maintain the landfill,
    such as the “failure to implement a gas control and monitoring
    plan to effectively monitor gas collection for nuisance
    potential,” the failure to place covers atop the trash piles to
    “prevent vectors, odors, blowing litter, and other nuisances”
    2
    Leachate is water that has been contaminated by
    soluble and often harmful residues or chemicals from the solid
    waste through which it passes.
    7
    from escaping the landfill, and the “failure to implement the
    Nuisance Minimization and Control Plan to minimize and
    control conditions that are harmful to the environment or
    public health, or which create safety hazards, odors, dust,
    noise, unsightliness, and other public nuisances.” JA30-31
    (Compl. ¶ 16 (d)-(f)).
    Some residents have contacted counsel to document
    their experiences with the landfill, describing “the sickening
    odors as obnoxious, foul, and nauseating.” JA32 (Compl.
    ¶ 20). Residents complained that the odors prevent them from
    using and enjoying their homes and private land. For instance,
    residents are unable to use their swimming pools, spend time
    on their porches, host guests (due to embarrassment), or play
    in their yards with their children or pets. “At times, the stench
    becomes so pungent that it permeates the walls of [their]
    homes,” forcing them to keep “all windows and doors sealed
    shut and virtually render[ing] them entrapped in their own
    homes.” JA32 (Compl. ¶ 22).
    On Bethlehem’s motion, the District Court dismissed
    the complaint for failure to state a claim pursuant to Federal
    Rule of Civil Procedure 12(b)(6). Having dismissed all the
    claims, the court also dismissed the Baptistes’ request for
    punitive and injunctive relief. The Baptistes timely appealed.
    C. Intervention by Amici
    We granted leave to the Public Interest Law Center and
    Philly Thrive to appear as amici in support of the Baptistes.
    These two non-profit organizations sought to shine light on the
    “environmental justice” implications of the District Court
    decision for “communities disproportionately impacted by
    8
    pollution—that is, low-income communities and communities
    of color.”3 Public Interest Law Center Amicus Br. 2.
    The Chamber of Commerce of the United States of
    America, the Pennsylvania Chamber of Business & Industry,
    the Pennsylvania Farm Bureau, and the National Waste &
    Recycling Association appeared as amici in support of
    Bethlehem. In their view, the District Court decision preserves
    the business community’s ability to “coordinate” directly with
    regulatory agencies, rather than defend numerous private
    lawsuits, and redress large-scale environmental harms without
    reducing “investment and quality of goods and services.”
    Chamber of Commerce Amicus Br. 5, 24-31; see National
    Waste & Recycling Association Amicus Br. 1,16-19.
    STANDARD OF REVIEW
    We exercise plenary review over the dismissal of a
    complaint under Federal Rule 12(b)(6). Our role is to
    “determine whether, under any reasonable reading of the
    complaint, the plaintiff may be entitled to relief.” Phillips v.
    County of Allegheny, 
    515 F.3d 224
    , 233 (3d Cir. 2008)
    (internal quotation marks omitted). A complaint’s “well-
    pleaded allegations” must be accepted as true and must be
    viewed “in the light most favorable to the plaintiffs.”
    3
    “Environmental justice embodies the principles that
    communities and populations should not be disproportionally
    exposed to adverse environmental impacts.”            PADEP,
    Environmental Justice,
    https://www.dep.pa.gov/PublicParticipation/OfficeofEnviron
    mentalJustice/Pages/default.aspx (last seen July 13, 2020).
    9
    McTernan v. City of York, 
    577 F.3d 521
    , 526 (3d Cir. 2009)
    (citation omitted).
    DISCUSSION
    The Baptistes assert that they have sufficiently pleaded
    the necessary elements for each of their causes of action: public
    nuisance, private nuisance, and negligence. We will address
    the nuisance claims together, because the analysis overlaps in
    significant respects, before turning to negligence.
    Common-law nuisance is a notoriously perplexing and
    unruly doctrine, seeming to defy all efforts to draw bright lines
    around it. See Int’l Paper Co. v. Ouellette, 
    479 U.S. 481
    , 496
    n.17 (1987) (“There is perhaps no more impenetrable jungle in
    the entire law than that which surrounds the word ‘nuisance.’”
    (quoting W. Keeton, D. Dobbs, R. Keeton, & D. Owen,
    PROSSER AND KEETON ON LAW OF TORTS 616 (5th ed. 1984)).
    The father of the leading treatise on torts, William
    Prosser, considered the law of nuisance a “legal garbage can”
    full of vagueness and uncertainty. William L. Prosser,
    Nuisance Without Fault, 20 TEX. L. REV. 399, 410 (1942).
    Courts have similarly struggled to find their footing on this
    legal quagmire. As Justice Blackmun observed, “[O]ne
    searches in vain, I think, for anything resembling a principle in
    the common law of nuisance.” Lucas v. S.C. Coastal Council,
    
    505 U.S. 1003
    , 1055 (1992) (dissenting).
    The Baptistes contend that the District Court
    misapprehended foundational nuisance principles, and as a
    10
    result, imposed restrictions on their public and private nuisance
    claims that do not exist under Pennsylvania common law.
    Bethlehem disagrees. It asserts that the District Court
    got it right, albeit for a slightly different reason. Bethlehem
    argues that the Baptistes have not alleged an ordinary public or
    private nuisance, but rather a so-called “mass nuisance”—a
    large-scale industrial nuisance that is too large and widespread
    to be actionable by private persons. Appellee’s Br. 28.
    According to Bethlehem, the state holds the exclusive power
    to remedy these sorts of nuisances.
    To clear out some of the debris from this cluttered area
    of the law, we begin with the basics. Consistent with the
    Restatement (Second) of Torts, Pennsylvania law recognizes
    two types of nuisances: (i) public nuisance and (ii) private
    nuisance. Youst v. Keck’s Food Serv., Inc., 
    94 A.3d 1057
    ,
    1071-72 (Pa. Super. Ct. 2014) (citing Pa. Soc’y for the
    Prevention of Cruelty to Animals v. Bravo Enters., Inc., 
    237 A.2d 342
    , 348 (Pa. 1968) [“PSPCA”]); see RESTATEMENT
    (SECOND) OF TORTS § 821A (1979); 2 SUMM. PA. JUR. 2D
    TORTS § 21:4 (2d ed.); see also Prosser, Nuisance Without
    Fault, supra at 411 (explaining that “[p]roperly used,” the term
    “‘nuisance,’ refers to two, and only two, types of invasions,”
    public nuisance and private nuisance, and noting that “[t]here
    is, properly, no other kind of nuisance”). Thus, the Baptistes’
    nuisance claims must rise or fall on these two theories.
    1. Public Nuisance
    A public nuisance is “an unreasonable interference with
    a right common to the general public,” such as the right to clean
    public water and fresh air in public spaces. Philadelphia Elec.
    Co. v. Hercules, Inc., 
    762 F.2d 303
    , 315 (3d Cir. 1985)
    11
    (quoting RESTATEMENT (SECOND) OF TORTS § 821B(1));
    Machipongo Land & Coal Co. v. Pennsylvania, 
    799 A.2d 751
    ,
    773 (Pa. 2002). Because these rights are held in common by
    the public at large and no one owns them to the exclusion of
    others, the remedy for their infringement ordinarily lies “in the
    hands of the state.” Philadelphia Elec. Co., 
    762 F.2d at 315
    (quoting William L. Prosser, Private Action for Public
    Nuisance, 52 VA. L. REV. 997, 999 (1966)).
    There is no dispute that the Baptistes have alleged the
    existence of a public nuisance based on Bethlehem’s alleged
    failure to operate its facility in accordance with the SWMA and
    the resulting discomfort and inconvenience caused by the
    offensive odors emanating from the landfill into their
    neighborhood. See Machipongo, 799 A.2d at 773 (stating that
    an unreasonable interference with a public right may occur
    when “conduct involves a significant interference with . . . the
    public comfort or the public convenience,” or when “conduct
    is proscribed by a statute, ordinance or administrative
    regulation” (quoting RESTATEMENT (SECOND) OF TORTS
    § 821B)). The question is whether the Baptistes have properly
    pleaded a private claim for this public nuisance. The answer is
    yes.
    When a public nuisance interferes with an individual’s
    personal rights, such as the right to use and enjoy “private
    land,” the aggrieved person has a private cause of action to
    remedy the infringement of his personal rights. Philadelphia
    Elec. Co., 
    762 F.2d at 315
     (quoting Prosser, Private Action,
    supra, at 999); see 2 SUMM. PA. JUR. § 21:5 com. (“The harm
    suffered by the landowner is a particular harm differing in kind
    from that suffered by the general public, so the landowner can
    recover for the public nuisance.”). To be actionable, the
    infringement of the personal rights must result in “significant
    12
    harm,” that is, “harm of importance involving more than slight
    inconvenience.” Harford Penn-Cann Serv., Inc. v. Zymblosky,
    
    549 A.2d 208
    , 209 (Pa. Super. Ct. 1988) (quoting
    RESTATEMENT (SECOND) OF TORTS § 821F com. c).
    Stated differently, to sustain a private claim on a public
    nuisance theory, “a plaintiff must have suffered a harm of
    greater magnitude and of a different kind than that which the
    general public suffered.” Allegheny Gen. Hosp. v. Philip
    Morris, Inc., 
    228 F.3d 429
    , 446 (3d Cir. 2000); see PSPCA,
    237 A.2d at 348 (“[A] public nuisance may be enjoined at the
    behest of a private citizen or group of citizens, if . . . their
    property or civil rights[] are specifically injured by the public
    nuisance over and above the injury suffered by the public
    generally.”).
    In Philadelphia Electric Co., we rejected a utility
    company’s attempt to recover costs related to cleaning up
    pollution in the Delaware River. Although these pecuniary
    damages were different in kind from the harm suffered by the
    general public, there was no indication that the company had
    been “directly harmed in any way by the pollution in those
    waters.” 
    762 F.2d at 316
    . But we observed that the company
    may have been able to assert a private claim if, “as a riparian
    landowner,” it “had suffered damage to its land or its
    operations as a result of the pollution of the Delaware.” 
    Id.
    (emphasis added); cf. Bell v. Cheswick Generating Station, 
    734 F.3d 188
    , 189, 192, 196-97 (3d Cir. 2013) (holding that the
    Clean Air Act did not preempt nuisance claims brought by
    Pennsylvania homeowners and residents for interference with
    use and enjoyment of their private land caused by the
    outmigration of noxious odors and particulates from a nearby
    coal-fired electrical plant).
    13
    Here, the Baptistes seek to vindicate their right to use
    and enjoy their home and obtain the full value of their
    property—personal rights that are qualitatively different (“of a
    different kind”) than the general, non-possessory right to clean
    air held in common with the community at large. Philadelphia
    Elec. Co., 
    762 F.2d at 316
    . The alleged harm caused by the
    infringement of these personal rights is also quantifiably larger
    (“of greater magnitude”) than the harm caused by the
    interference with the general right to clean air. Allegheny Gen.
    Hosp., 
    228 F.3d at 446
    .
    While everyone in the community—including visitors,
    commuters and residents alike—may suffer from the
    discomfort of having to breathe polluted air in public spaces,
    the Baptistes have identified cumulative harms that are unique
    to them and their fellow residents as homeowner-occupants or
    renters, such as the inability to use and enjoy their swimming
    pools, porches, and yards. The complaint specifically alleges
    that the presence of these odors is “especially injurious” to
    class members “as compared with the public at large, given the
    impacts to their homes.” JA32 (Compl. ¶ 28). These injuries
    are above and beyond any injury to the public, because they
    involve private property damages that the public at large has
    not endured. In short, the Baptistes sufficiently alleged a
    “particular damage” to sustain a private claim for public
    nuisance. Philadelphia Elec. Co., 
    762 F.2d at 316
    .
    The District Court’s contrary conclusion is not
    supported by Pennsylvania law. The court reasoned that,
    because the presence of odors affected thousands of
    households in the same way, none of the residents could claim
    a “special harm.” JA9. The court relied primarily on a district
    court decision, quoting an isolated statement: “[W]here there
    are a large number of plaintiffs, the harm those plaintiffs
    14
    suffered is not special.” In re One Meridian Plaza Fire Litig.,
    
    820 F. Supp. 1460
    , 1481 (E.D. Pa. 1993), vacated in part, No.
    CIV. A. 91-2171, 
    1993 WL 224167
     (E.D. Pa. June 14, 1993),
    and rev’d on other grounds sub nom. Fed. Ins. Co. v. Richard
    I. Rubin & Co., 
    12 F.3d 1270
     (3d Cir. 1993)).
    There were two missteps in the District Court’s
    analysis.
    First, the District Court incorrectly conflated the
    putative class with the general public. These two groups are
    not conterminous. The Baptistes have asserted their claims
    specifically on behalf of a class of homeowner-occupants and
    renters, not the community at large. Rather than compare the
    injuries suffered by the Baptistes with the same injuries
    suffered by similarly situated class members, the District Court
    should have compared the injuries suffered by putative class
    members as homeowner-occupants and renters with the harm
    shared by all community members including nonresidents such
    as visitors and commuters. As explained above, that
    comparison reveals that the Baptistes have alleged additional
    invasions of their private property rights resulting from the
    interference with the common right to clean air.
    Second, the District Court’s reliance on One Meridian
    was misplaced. There, a large fire engulfed a building in
    downtown Philadelphia, causing massive street closures.
    Local businesses brought a class action seeking compensation
    for lost profits and loss of access to their business properties
    under a public nuisance theory, among others. One Meridian,
    
    820 F. Supp. at 1464, 1471
    . While the One Meridian court
    speculated that allowing too many plaintiffs into the class
    might “generalize the harm,” it did not impose a numerical
    limitation on the size of the class. 
    Id. at 1482
    . Rather, it
    15
    defined the class by the nature and degree of the harm suffered,
    that is, “lost profits” that were “reasonabl[y] certain[]” or “lack
    of access” that was “substantial.” Id.; see 2 SUMM. PA. JUR.
    § 21:5 illus. & n.4 (citing One Meridian for the proposition that
    “the only parties who may have suffered peculiar harm
    required for a public nuisance claim . . . were those businesses
    who could show with reasonable certainty that they lost profits
    due to the closure of the streets and who suffered substantial
    lack of access”).
    It also bears mentioning that One Meridian did not rely
    on Pennsylvania authority for the suggestion that real property
    damages (such as those alleged here) become “generalized” or
    “not special” if a large number of plaintiffs suffer the same
    injury.4 To our knowledge, no Pennsylvania court has so held,
    4
    We note that the One Meridian court analyzed lack of
    access and lost profits together, as if they were
    indistinguishable. They are not. Lack of access is an invasion
    of a “property right in the land,” RESTATEMENT § 821C com.
    f, while lost profits are a form of pecuniary or economic losses
    that are not necessarily connected to invasions of real property,
    id. § 821C com. h. That difference matters. While we have
    found no Pennsylvania authority for limiting the number of
    plaintiffs that can recover for interference with real property
    rights on a nuisance theory, there is some authority for the
    proposition that businesses may lose their ability to recover lost
    profits on a public nuisance theory when all or the great
    majority of businesses in a community are similarly affected or
    when their economic losses are untethered from any real
    property damages. See Duquesne Light Co. v. Pennsylvania
    Am. Water Co., 
    850 A.2d 701
    , 702, 707 (Pa. Super. Ct. 2004);
    RESTATEMENT (SECOND) OF TORTS § 821C com. h. We need
    16
    either before or after One Meridian. We believe that the
    District Court erred in taking that step first.
    In brief, the Baptistes have properly stated a private
    claim for public nuisance.
    2. Private Nuisance
    The Baptistes have also stated a private nuisance claim.
    A private nuisance exists when a person’s conduct invades
    “another’s interest in the private use and enjoyment of land,”
    and that invasion is either intentional and unreasonable or
    unintentional but negligent. Youst, 
    94 A.3d at
    1072 (citing
    RESTATEMENT (SECOND) OF TORTS § 822). There is no dispute
    that the Baptistes have sufficiently pleaded these elements.
    Still, the District Court dismissed the private nuisance
    claim, adopting a similar logic as it did for public nuisance.
    The court reasoned that, because the outmigration of odors was
    a public nuisance insofar as it affected the “whole community”
    rather than only “some particular person,” it could not also be
    a private nuisance. JA13 (quoting Phillips v. Donaldson, 
    112 A. 236
    , 246 (Pa. 1920)). That was legal error.
    Although public and private nuisance are distinct causes
    of action, they are not mutually exclusive. Again, the critical
    difference between these two theories of liability is not the
    number of persons harmed but the nature of the right affected:
    not address that distinction any further, because it is not
    relevant here. The Baptistes are not seeking economic losses,
    only real property damages, i.e., loss of real property value and
    interference with the use and enjoyment of their homes and
    private land.
    17
    a public nuisance requires interference with common or public
    rights, while a private nuisance requires only interference with
    personal or private rights.5 See Philadelphia Elec. Co., 
    762 F.2d at 315
    ; Youst, 
    94 A.3d at 1071
    ; see 58 AM. JUR. 2D
    NUISANCES §§ 25, 32 (2020).
    When a private or public nuisance is so widespread that
    it affects both public and private rights, it may be actionable as
    either public or private “or both public and private.” Youst, 
    94 A.3d at
    1071 (citing PSPCA, 237 A.2d at 348). There may be
    some overlap between these two causes of action, for instance
    when, as here, the alleged interference with private land
    supplies the basis for both the private nuisance claim and the
    particular harm required to sustain a private claim for public
    nuisance. See, e.g., Umphred v. VP Auto Sales & Salvage, Inc.,
    No. 1372 MDA 2014, 
    2015 WL 6965725
    , at *12 (Pa. Super.
    Ct. June 24, 2015) (affirming the lower court’s conclusion that
    “noise pollution” from the operation of a scrap metal recycling
    facility was actionable by nearby residents both as a public and
    private nuisance, because it interfered with both public and
    private rights);6 see also RESTATEMENT (SECOND) OF TORTS
    §§ 821C com. e, 821B com. h.
    5
    Phillips is not to the contrary. It is clear from the
    context of that case that the distinction the court draws between
    public and private nuisance focuses on differentiating between
    whether the nuisance affects the rights of the “general public”
    or the rights of a “private individual.” 112 A. at 238.
    6
    We cite Umphred for illustrative purposes only, as we
    are cognizant that the Pennsylvania Superior Court has limited
    the precedential weight of any “unpublished memorandum
    decision filed prior to May 2, 2019.” 
    210 Pa. Code § 65.37
    .
    18
    The District Court further held that private nuisance
    claims are only available to resolve conflicts between
    proximate or adjoining neighbors. The court found that the
    Baptistes’ home, which is located about 1.6 miles from the
    landfill, was too far to qualify as a “neighboring property.”
    A13. That, too, was legal error.
    We have found no support under Pennsylvania law for
    rejecting a private nuisance claim on the ground that the
    property affected was too far from the source of the alleged
    nuisance. Bethlehem points to a decision from more than a
    century ago in which the Pennsylvania Supreme Court noted
    “the proximity” of the property to the source of the nuisance,
    Gavigan v. Atl. Ref. Co., 
    40 A. 834
    , 835 (Pa. 1898), but that
    case did not hold that a more distant property would not have
    been able to bring the same claim. Nor have we seen any case
    citing Gavigan for that proposition in the 120 years since it was
    decided.
    Conversely, the last reported case to cite Gavigan
    recognized the existence of a private nuisance even though the
    source of the alleged nuisance—manufacturing plants emitting
    “corrosive gases, smoke, lead particles and lead oxides”—was
    located about “one and one-half miles” from the plaintiffs’
    property. Noerr v. Lewistown Smelting & Ref., Inc., 
    60 Pa. D. & C.2d 406
    , 408, 414 (Pa. Com. Pl. 1973). More recently, in
    a nuisance action brought against another landfill, a
    Pennsylvania court rejected this supposed “neighboring
    requirement” as meritless. Leety v. Keystone Sanitary Landfill,
    19
    No. 2018 CV 1159, slip op. at 6 (Pa. Com. Pl. Jan. 24, 2019)
    (internal quotation marks omitted).7
    In sum, because the Baptistes have alleged that their
    private property rights are being significantly and
    unreasonably infringed by the presence of noxious odors and
    air contaminants released by the Bethlehem landfill, they have
    stated both a private claim for public nuisance and a private
    nuisance claim.
    3. “Mass Nuisance”
    We conclude our nuisance analysis by addressing
    Bethlehem’s “mass nuisance” theory. Bethlehem contends
    that when too many people complain of the same particular
    harm, they lose the right to bring a private action to remedy
    that injury. Bethlehem does not identify a precise number at
    which that right is extinguished. It argues that this threshold is
    crossed when the nuisance is so widespread that the number of
    aggrieved persons becomes “indeterminate” or when it affects
    7
    The other cases cited by the District Court and
    Bethlehem are inapposite. They focus on “neighboring or
    adjoining” properties for different reasons: (i) nuisance
    requires “contemporaneous” or simultaneous uses of land by
    the plaintiff and the defendant and (ii) a plaintiff cannot assert
    a nuisance claim against a defendant when “the nuisance
    property and the affected property are one and the same.”
    Rowe v. E.I. Dupont De Nemours & Co., 
    262 F.R.D. 451
    , 459-
    60 (D.N.J. 2009); see also Philadelphia Elec. Co., 
    762 F.2d at 314-15
    ; Cavanagh v. Electrolux Home Prod, 
    904 F. Supp. 2d 426
    , 433-34 (E.D. Pa. 2012). Neither of those concerns are
    present here.
    20
    an entire neighborhood, as opposed to only a small subset of
    its population, regardless of its size.
    In other words, if the Baptistes and only a few other
    households were affected by the odors, they would have
    cognizable nuisance claims. But because the odors reach the
    whole neighborhood (some 20,000 residents by Bethlehem’s
    count), none of the residents may bring a private claim to
    redress infringements of the same personal rights. Instead,
    according to Bethlehem, they must depend entirely on PADEP
    or other public officials to remedy the situation on their behalf.
    Bethlehem insists that the Pennsylvania Supreme Court
    endorsed this theory more than a century ago in Gavigan and
    then again in Edmunds v. Duff, 
    124 A. 489
     (Pa. 1924), a case
    that Bethlehem belatedly cited for the first time at oral
    argument. But neither of these cases supports Bethlehem’s
    position. Edmunds actually undermines it. There, the court
    held that individual residents retained the right in equity to
    protect themselves against any “interference with the
    enjoyment of private homes” caused by “the operation of a
    business or industry tending to render the immediate
    community a less desirable place in which to live,” even
    though “the resulting injury . . . necessarily affects practically
    all persons who happen to be living in the immediate
    neighborhood[.]” Edmunds, 124 A. at 492. The Edmunds
    court alluded to “numerous cases” illustrating this point and
    noted that residents that were “especially injured” in those
    cases were “invariably” entitled to relief on an individual basis,
    “regardless of the fact that the acts complained of may also
    have amounted to a public nuisance and liable to be dealt with
    as such.” Id.
    21
    To be sure, neither party has submitted a decision of the
    Pennsylvania Supreme Court directly addressing the question
    of whether there is a limit on the number of plaintiffs that can
    recover private property damages on a nuisance theory.8 “In
    the absence of a controlling decision by the Pennsylvania
    Supreme Court, a federal court applying that state’s substantive
    law must predict how Pennsylvania’s highest court would
    decide this case. In predicting how the highest court of the
    state would resolve the issue, [we] must consider ‘relevant
    state precedents, analogous decisions, considered dicta,
    scholarly works, and any other reliable data tending
    convincingly to show how the highest court in the state would
    decide the issue at hand.’” Berrier v. Simplicity Mfg., Inc., 
    563 F.3d 38
    , 45-46 (3d Cir. 2009) (internal citations omitted)
    (footnotes omitted) (alteration supplied).
    We are not convinced that Pennsylvania’s highest court
    would adopt Bethlehem’s novel position in this case. In
    addition to the Pennsylvania Supreme Court cases and other
    authorities establishing the controlling legal principles
    referenced in our nuisance analysis above, there are several
    examples of state or federal courts allowing private nuisance
    actions by large numbers of homeowners and residents for
    widespread industrial nuisances in Pennsylvania, including an
    almost identical class action recently filed against another
    landfill in the Court of Common Pleas of Lackawanna County.
    See Leety, No. 2018 CV 1159, slip op. at 1; see also, e.g., Diehl
    v. CSX Transp., Inc., 
    349 F. Supp. 3d 487
    , 494-95, 507-08
    (W.D. Pa. 2018) (denying a motion to dismiss a private
    nuisance claim brought by a putative class of “approximately
    8
    The parties agree that this question does not warrant
    certification to the Pennsylvania Supreme Court.
    22
    1,000” residents); Maroz v. Arcelormittal Monessen LLC, No.
    15-cv-0770, 
    2015 WL 6070172
    , at *2, *4 (W.D. Pa. Oct. 15,
    2015) (denying a motion to dismiss private nuisance claims
    against a metal processing plant emitting “noxious odors and
    air particulates,” brought by an unspecified number of
    “surrounding residents”).
    Bethlehem cites other Pennsylvania cases that it claims
    support its position. Yet none of those cases imposed a limit
    on the number of plaintiffs who can recover for the
    unwarranted invasions of their private property rights. For
    instance, Bethlehem cites at length Brunner v. Schaffer, 
    1 Pa. D. 646
     (Pa. Com. Pl. 1892), for the proposition that “widely-
    dispersed airborne emissions across an entire neighborhood is
    a claim for public nuisance without ‘special injury,’ and is
    redressable solely by public authorities like PADEP.”
    Appellee’s Br. 23. Yet Brunner says no such thing.
    The Brunner court itself acknowledged that the right of
    action for public or private nuisance “depends upon the
    character of the injury solely,” not “the number of people who
    suffer by it.” 1 Pa. D. at 648. True, the court rejected a private
    nuisance claim for foul odors that were “entering into the open
    windows of the plaintiff’s house,” but it did so because the
    plaintiff had not specifically alleged a “special injury” to
    property or persons distinct from the general discomfort
    suffered “by all the others in that locality.” Id. at 649. There
    was no indication that the plaintiff had complained of any
    interference with the use and enjoyment of her home, nor of
    any “property destroyed or depreciated.” Id.
    Nor do we see any indication that cases from other
    jurisdictions —to the extent that they support Bethlehem’s
    position—have gained any traction in Pennsylvania courts. Cf.
    23
    58 AM. JUR. 2D NUISANCES § 37 (noting that some courts have
    stated that a private nuisance is limited to a “relatively few
    persons” or a “determinate number of persons,” but citing only
    a handful of out-of-state cases).
    All that Bethlehem is left with are policy arguments.
    Bethlehem believes that leaving the remediation of large-scale
    industrial nuisances to the exclusive discretion of
    democratically accountable public officers is a sensible rule,
    because subjecting public utilities such as landfills to liability
    for private damages at the behest of thousands or millions of
    individuals would pose an “existential threat” to critical
    services that benefit the whole community. Oral Arg. Audio
    24:55-25:00, 29:10-15. Their supporting amici also warn
    against allowing “piecemeal” litigation “to attack landfill
    operations” that are already subject to “intense regulatory
    scrutiny,” because it could undermine the “consistent
    application” of the regulatory regime. National Waste &
    Recycling Association Amicus Br. 17, 19-20; see Chamber of
    Commerce Amicus Br. 28-29.
    The Baptistes beg to differ. They counter that the right
    to bring a private cause of action is a longstanding and
    important legal tool for protecting private property rights
    against the incursion of industrial nuisances. They note that,
    by including a savings clause in the SWMA, the Pennsylvania
    legislature expressly preserved the right to bring private
    actions under the common law to redress infringements of
    personal rights in addition to any other remedies that may be
    available through public action under that statute. See 35 P.S.
    § 6018.607 (“It is hereby declared to be the purposes of [the
    SWMA] to provide additional and cumulative remedies[.]”
    (emphasis added)); Lutz v. Chromatex, Inc., 
    718 F. Supp. 413
    ,
    428 (M.D. Pa. 1989) (“[T]he legislature obviously had the
    24
    rights of private citizens in mind when it drafted the [SWMA]
    but elected to protect those rights by way of existing common
    law remedies, such as actions for negligence and nuisance.”).
    Their supporting amici emphasize that this private right
    is of greater importance to historically underrepresented
    communities whose interests are not always fully addressed by
    public agencies or through the political process. For instance,
    recent studies have shown that environmental pollution,
    including from landfills, has a disparate impact on racial-ethnic
    minorities and low-income communities.                See, e.g.,
    Christopher W. Tessum et al., Inequity in Consumption of
    Goods and Services Adds to Racial-Ethnic Disparities in Air
    Pollution Exposure, 116 PROC. NAT’L ACAD. SCI. 6001, 6001
    (2019) (finding that “non-Hispanic whites experience . . .
    ∼17% less air pollution exposure than is caused by their
    consumption,” while “Blacks and Hispanics on average bear a
    ‘pollution burden’ of 56% and 63% excess exposure,
    respectively, relative to the exposure caused by their
    consumption”); Kathy Seward Northern, Battery and Beyond:
    A Tort Law Response to Environmental Racism, 21 WM. &
    MARY ENVTL. L. & POL’Y REV. 485, 498-505 (1997)
    (reviewing empirical research indicating that landfills and
    other waste disposal facilities are significantly more likely to
    be built in minority and low-income communities).
    Yet environmental laws remain underenforced in those
    communities. See, e.g., R. Shea Diaz, Getting to the Root of
    Environmental Injustice: Evaluating Claims, Causes, and
    Solutions, 29 GEO. ENVTL. L. REV. 767, 779 (2017) (reviewing
    empirical     research  suggesting     that   environmental
    25
    “enforcement is less vigilant in minority and low-income
    communities”).9
    Notwithstanding these important policy concerns, we
    remain tethered to what Pennsylvania law requires. We have
    not been presented with any Pennsylvania authority for the
    proposition that an individual’s right to recover private
    property damages on a nuisance theory turns on the size of the
    nuisance or the number of persons harmed, as opposed to the
    nature of the rights affected or the degree of the harm suffered.
    And we see no reason to depart from longstanding principles
    that allow individuals to recover private property damages
    caused by widespread nuisances, especially where, as here, the
    number of plaintiffs is not so large as to be “indeterminate,” as
    9
    PADEP has also recognized that “minority and low-
    income Pennsylvanians have been forced to bear a
    disproportionate       share    of    adverse     environmental
    impacts.” PADEP, Environmental Justice,
    https://www.dep.pa.gov/PublicParticipation/OfficeofEnviron
    mentalJustice/Pages/default.aspx (last seen July 13, 2020). In
    fact, PADEP has identified Freemansburg, where the Baptistes
    reside, as an “environmental justice area,” meaning an area
    “where 20 percent or more individuals live in poverty, and/or
    30 percent or more of the population is minority.”
    See PADEP, PA Environmental Justice Areas,
    https://www.dep.pa.gov/PublicParticipation/OfficeofEnviron
    mentalJustice/Pages/PA-Environmental-Justice-
    Areas.aspx (last seen July 13, 2020);
    PADEP, Environmental Justice Areas of Pennsylvania,
    http://files.dep.state.pa.us/PublicParticipation/Office%20of%
    20Environmental%20Advocacy/EnvAdvocacyPortalFiles/En
    vironmental_Justice_Areas_PA.pdf (last seen July 13, 2020).
    26
    Bethlehem posits, but rather is defined and limited to
    homeowner-occupants and renters within a 2.5-mile radius
    from the landfill.
    To adopt Bethlehem’s novel position would produce the
    anomalous result of penalizing small polluters while
    exempting larger polluters from the same liability. We decline
    to take that step without a clear directive from the Pennsylvania
    Supreme Court.
    We now turn to the negligence claim. In Pennsylvania,
    a plaintiff complaining of negligence must establish that (i) the
    defendant has a legal duty to conform to a certain standard of
    care to prevent unreasonable risks to the plaintiff, (ii) the
    defendant’s conduct breached that duty, (iii) the breach caused
    an injury to the plaintiff, and (iv) the injury resulted in actual
    losses or damages. Nw. Mut. Life Ins. Co. v. Babayan, 
    430 F.3d 121
    , 139 (3d Cir. 2005); R.W. v. Manzek, 
    888 A.2d 740
    ,
    746 (Pa. 2005).
    The parties’ arguments on negligence have evolved
    throughout the litigation. In the District Court, Bethlehem
    sought dismissal of the negligence claim on the ground that the
    Baptistes had failed to identify a legal duty to prevent the
    outmigration of odors or other nuisance conditions.
    In response, the Baptistes initially argued that the
    relevant duty was found in Bethlehem’s obligation to comply
    with certain requirements under the SWMA and that any
    violation of those statutory provisions constituted a breach of
    that duty. At the hearing before the District Court, the
    Baptistes refined their position. Acknowledging that the
    27
    SWMA did not create a legal duty owed to private individuals,
    the Baptistes invoked a common-law duty of care arising from
    Bethlehem’s “affirmative act” of operating a landfill. JA74;
    see JA38 (Compl. ¶ 63) (alleging that Bethlehem breached its
    “duty to exercise ordinary care and diligence when it
    improperly constructed, maintained and/or operated the
    landfill”).
    The District Court ignored this common-law argument,
    treated the Baptistes’ statute-based argument as a claim of
    negligence per se, and held that negligence per se was not
    actionable under the SWMA.
    On appeal, the Baptistes assert that the District Court
    erred not because it rejected a negligence per se claim but
    because it did not recognize the existence of a common-law
    duty. According to the Baptistes, “Pennsylvania courts have
    long recognized” that when a person undertakes “affirmative,
    risk-causing conduct,” such as operating a landfill, that person
    assumes a common-law duty to protect others “against an
    unreasonable risk of harm arising out of that act.” Appellants’
    Br. 28-29, 31 (internal quotation marks omitted).
    Bethlehem modified its argument accordingly. On
    appeal, Bethlehem concedes that it owes the plaintiffs a
    common-law duty to undertake its landfilling operations with
    reasonable care but disputes the content of that duty.
    According to Bethlehem, “the duty is to protect others against
    an unreasonable risk of harm,” and it argues that, “in this
    context, ‘harm’ means physical harm, not mere nuisance” such
    as odors.10 Appellee’s Br. 34-35. Bethlehem contends for the
    10
    Bethlehem cites Gilbert v. Synagro Cent., LLC, 
    90 A.3d 37
     (Pa. Super. Ct. 2014), and Horne v. Haladay, 
    728 A.2d 28
    first time that, because the Baptistes have not pleaded any
    physical injury to persons or property, they have failed to state
    an independent claim for negligence.
    That argument is drastically different from the issue
    presented to and addressed by the District Court. As the parties
    stand before us, there is no longer any dispute that Bethlehem
    has a common-law duty to operate the landfill in a manner that
    avoids any unreasonable risk of harm to the plaintiffs.11 On
    954 (Pa. Super. Ct. 1999), to suggest that the Baptistes cannot
    rely on the same nuisance conditions to state a separate
    negligence claim. Not so. The key difference between Gilbert
    and Horne on the one hand and this case on the other is the
    allegation of wrongful conduct (i.e., breach of a legal duty),
    which was not at issue in Gilbert or Horne. See Gilbert, 90
    A.3d at 51 (“As in Horne, the operative facts here establish that
    the Residents have asserted nuisance claims, not negligence
    claims—namely claims based upon a use of property that ‘is
    not wrongful in itself, but only in the consequences which may
    flow from it.’” (citing Kramer v. Pittsburgh Coal Co., 
    19 A.2d 362
    , 363 (Pa. 1941) (emphasis added)).
    11
    Indeed, in Pennsylvania, a duty of reasonable care
    attaches to persons undertaking affirmative, risk-causing acts.
    Dittman v. UPMC, 
    196 A.3d 1036
    , 1046-47 (Pa. 2018). That
    includes the operation of industrial sites. See, e.g., Leety, No.
    2018-cv-1159, slip op. at *7 (holding that plaintiffs had
    sufficiently alleged that a landfill operator owed surrounding
    property owners a “duty to exercise ordinary care and
    diligence” based on “[i]ndustry standards of care”); Noerr, 60
    Pa. D. & C.2d at 453 (finding that the failure to install and
    properly operate adequate pollution controls was negligent).
    Courts have also looked to the SWMA or similar statutes to
    29
    that basis alone, we will reverse the District Court’s dismissal
    of the negligence claim.
    Still, the question remains whether the Baptistes have
    sufficiently pleaded a cognizable injury to state an independent
    negligence claim. See LaForm v. Bethlehem Twp., 
    499 A.2d 1373
    , 1384 (Pa. Super. Ct. 1985); RESTATEMENT (SECOND) OF
    TORTS §§ 371, 497. The Baptistes believe they have
    sufficiently pleaded physical property damages insofar as they
    alleged that “noxious odors, pollutants and air contaminants”
    have “physically” invaded their property, JA29 (Compl. ¶ 12),
    constituting a “hazard to health, safety, or property.” JA30-31
    (Compl. ¶ 16). At oral argument, the Baptistes noted that they
    also alleged the outmigration of “landfill gas,” which they
    claim is composed primarily of “hydrogen sulfide,” an odorous
    chemical that can be hazardous to human health after repeated
    exposure. Oral Arg. Audio 41:35-55.
    We will not venture into the weeds of this issue in the
    first instance. See Lloyd v. HOVENSA, LLC, 
    369 F.3d 263
    ,
    272-73 (3d Cir. 2004) (“Our Circuit adheres to a well
    established principle that it is inappropriate for an appellate
    court to consider a contention raised on appeal that was not
    initially presented to the district court.” (internal quotation
    marks omitted)). However, because the parties have not
    argued forfeiture or waiver of these new arguments, we will
    leave it to the District Court to determine whether to consider
    identify the relevant standard of care and considered “evidence
    of the violation of the SWMA as evidence of negligence.”
    Hartle v. FirstEnergy Generation Corp., No. CIV.A. 08-1019,
    
    2014 WL 1117930
    , at *6 (W.D. Pa. Mar. 20, 2014).
    30
    the question of physical injury on remand either before or at
    the summary judgment stage.12
    CONCLUSION
    For these reasons, we will reverse the District Court
    decision and remand for further proceedings consistent with
    this opinion.
    12
    Conceptually, it is not difficult to conceive how the
    presence of hazardous particulates in the air could constitute
    physical property damage if these pollutants infiltrate physical
    structures, as is the case when hazardous chemicals seep into
    private wells through contamination in groundwater. See
    Ayers v. Jackson Twp., 
    525 A.2d 287
    , 294 (N.J. 1987); see also
    Gates v. Rohm & Haas Co., No. CIV.A. 06-1743, 
    2008 WL 2977867
    , at *3 (E.D. Pa. July 31, 2008) (“[T]he physical
    presence of vinyl chloride [a hazardous substance] in the air,
    even if undetectable, constitutes a physical injury to the
    property for purposes of common law property damage
    claims.”). Drawing all reasonable inferences in favor of the
    Baptistes, as required at the pleadings stage, the allegations in
    the complaint—namely that “landfill gas” and other hazardous
    contaminants have physically invaded the plaintiffs’ property
    and “permeate[d] the walls”—may be enough to satisfy that
    requirement.
    31