Murrysville Watch Committee v. Municipality of Murrysville ZHB & Municipality of Murrysville v. Olympus Energy LLC v. D. & C. Gesuale ( 2022 )


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  •                IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Murrysville Watch Committee,                 :
    Appellant                  :
    :
    v.                         :
    :
    Municipality of Murrysville Zoning           :
    Hearing Board and Municipality of            :
    Murrysville                                  :
    :   No. 579 C.D. 2020
    v.                         :
    :   Argued: May 10, 2021
    Olympus Energy LLC                           :
    :
    v.                         :
    :
    David and Cindy Gesuale, Douglas             :
    and David Geiger, Barry and Pamela           :
    Paulisick, Free Gospel Church, Inc.,         :
    Doris and Jurgen Ekbert, and Samuel          :
    and Regina Staymates                         :
    BEFORE:       HONORABLE PATRICIA A. McCULLOUGH, Judge
    HONORABLE CHRISTINE FIZZANO CANNON, Judge
    HONORABLE ELLEN CEISLER, Judge1
    OPINION NOT REPORTED
    MEMORANDUM OPINION
    BY JUDGE McCULLOUGH                                            FILED: January 24, 2022
    1
    This case was argued before a panel of the Court that included former Judge Crompton.
    Because Judge Crompton recused himself in this matter after argument, this matter was submitted
    on briefs to Judge Ceisler as a member of the argument panel. Judge Crompton’s service on the
    Court ended December 31, 2021.
    The Murrysville Watch Committee (MWC), on behalf of itself and
    several individual members (Objectors),2 appeals from the May 13, 2020 order of the
    Court of Common Pleas of Westmoreland County (trial court), affirming the decision
    of the Murrysville Zoning Hearing Board (Board) that denied its substantive validity
    challenge to current section 220-31(CC) of the Municipality of Murrysville’s
    (Municipality) Zoning Ordinance (Ordinance),3 which permits unconventional oil and
    gas drilling and operations as a conditional use in the Municipality’s Oil and Gas
    Recovery Overlay District (Overlay District). The Overlay District is located within
    residential districts in the Municipality (R Districts), including a portion of the rural
    residential district (R-R District).
    Background
    On May 3, 2017, the Municipality adopted Oil and Gas Ordinance 930-
    15, which repealed and replaced former section 220-31(CC) of the Ordinance (2017
    Amendment). (Reproduced Record (R.R.) at 467a-83a.) Among other challenges,
    the MWC contends that the 2017 Amendment violates substantive due process under
    article I, section 1 of the Pennsylvania Constitution, Pa. Const. art. I, §1, runs afoul of
    article I, section 27 of the Pennsylvania Constitution, Pa. Const. art. I, §27, known as
    the Environmental Rights Amendment (ERA), violates article III, section 32 of the
    Pennsylvania Constitution, Pa. Const. art. III, §32, relating to special legislation and
    equal protection, constitutes illegal spot zoning, and contravenes various provisions
    2
    The Objectors are Dominique Ponko, Barbara Sims, Debra Borowiec, Joe Evans, Judy
    Evans, Susan Stewart-Bayne, and Jean Martin.
    3
    Municipality of Murrysville, Pennsylvania, Ordinance §220-31(CC) (2017).
    2
    of the Pennsylvania Municipalities Planning Code (MPC).4 The MWC further asserts
    that the Board committed evidentiary-based errors, particularly with regard to its
    request for an adverse inference, the admission of testimony by a purported expert,
    and the denial of its request to subpoena members of the Municipality’s Council
    (Council).
    The parties to the instant case are the MWC, the Board, and the
    Municipality, as well as Intervenor Olympus Energy LLC (Olympus), an energy
    development company with a pending unconventional natural gas well site in the
    Municipality, and a group of Intervenor landowners who have entered into natural
    gas leases with oil and gas operators (Landowners).5 By way of background,
    the initial [O]rdinance regulating oil and gas development
    in the Municipality was adopted in 1965, allowing oil and
    gas wells as permitted uses with minimal additional
    requirements in all zoning districts.           Municipality
    Ordinance No. 680-05 was adopted in 2005, and it
    permitted oil and gas extraction in all zoning districts in the
    Municipality as a conditional use. The Ordinance was
    amended to provide additional restrictions on development
    in 2011, creating an [Overlay District] comprising
    approximately 37% of the [M]unicipality and imposing
    many additional regulations. The Overlay District allows
    for unconventional oil and gas development only in certain
    zoning districts, including portions of the [R-R District].
    The Ordinance was further limited and amended by [the
    2017 Amendment], which imposed stricter setbacks and
    additional requirements.
    In its present form, as codified in the Municipality[’s] Code
    of Ordinances as [s]ection 220-31(CC)[, the 2017
    4
    Act of July 31, 1968, P.L. 805, as amended, 53 P.S. §§10101-11202.
    5
    Landowners are David and Cindy Gesuale, Douglas and David Geiger, Barry and Pamela
    Paulisick, Free Gospel Church, Inc., Doris and Jurgen Ekbert, and Samuel and Regina Staymates.
    3
    Amendment,] requires a comprehensive application by any
    potential unconventional oil and natural gas developer,
    which includes all relevant permits, a detailed survey[,] and
    property owner authorizations. The sites are subject to
    750[-]foot setbacks from all protected structures. The [oil
    and gas producer] is [also] required to comply with
    stringent traffic regulations, fencing and impoundment
    guidelines, hours of operations limitations, inspections by
    the Municipality[,] and aesthetic integration standards,
    among other requirements.
    (Trial court op. at 2-3.)
    In 2018, Huntley and Huntley Energy Exploration, LLC (HHEX)
    submitted a conditional use application for the construction of an unconventional well
    pad (the Titan Pad) in a part of the R-R District that is located within the Overlay
    District. On October 29, 2018, the MWC filed a substantive validity challenge to the
    2017 Amendment. The Board thereafter held multiple hearings and summarized the
    testimony presented at those hearings, in pertinent part, as follows:
    Jim Morrison testified on behalf of the Municipality []. Mr.
    Morrison is employed as the Chief Administrator of the
    Municipality . . . and is responsible for the day to day
    supervision of municipal operations[,] including [the]
    development of Ordinances [and] managing the planning,
    staff[ing], and dealing with land developments generally
    within the [M]unicipality. Mr. Morrison testified regarding
    the enactment of [the 2017 Amendment]. Mr. Morrison
    testified that in his estimate, thousands of hours by staff and
    volunteers, [b]oroughs[,] and elected officials culminated in
    the adoption of said Ordinance. Mr. Morrison testified that
    [the Municipality] has a history of gas development;
    namely, with conventional wells as a conditional use in [3]
    of the [4] residential districts in the community as governed
    essentially by the [former] Pennsylvania State Oil and Gas
    Act [Oil and Gas Act of 1984][6]; namely, the R-R District,
    6
    Act of December 19, 1984, P.L. 1140, as amended, formerly 58 P.S. §§601.101-601.605,
    repealed by the Act of February 14, 2002, P.L. 87.
    4
    R-1 District and R-2 District. Mr. Morrison [also] testified
    as to the creation of a [T]ask [F]orce . . . to create a detailed
    study, as authorized by [the Council], with regard to oil and
    gas development in the [M]unicipality. He testified that
    Ordinance 833-11 was the first unconventional well
    Ordinance [and was] adopted in 2012. Mr. Morrison then
    testified as to the time and efforts involved in following gas
    and oil development law in the Commonwealth and
    discussed the numerous meetings conducted by the [T]ask
    [F]orce[,] which was the [way] that the Municipality []
    approached [] unconventional drilling. Mr. Morrison
    indicated . . . that the work of the [T]ask [F]orce was
    completed over a [6]-year period in the development of []
    Ordinance[] 833-11 and [the 2017 Amendment]. Mr.
    Morrison’s extensive testimony presented [] the [Board
    with] the timeline, the background[,] and other factors that
    went into the drafting of [the 2017 Amendment].
    Following extensive examination, cross-examination and
    re-direct examination[,] and re-cross of Mr. Morrison, his
    substantial testimony of 283 transcript pages was
    considered by the Board.
    Dennis Skeers testified for the [MWC]. Mr. Skeers testified
    that he is a resident of Murry Highland Circle in
    Murrysville. He further indicated that he is [the] President
    of the [MWC], which is a group of citizens from the
    Municipality [] and nearby surroundings, developed over
    the years, [and] working and advocating for what they
    consider to be a sound Ordinance. . . .
    Mr. Skeers testified as to his recollection of the meeting
    process of the [T]ask [F]orce, enabled by the Municipality
    [], which culminated in the presentation of a report to the
    Council []. Mr. Skeers testified that the [T]ask [F]orce
    meetings were not open to the public. Mr. Skeers testified
    as to his [legal] position and that of his organization with
    regard to the work of the [T]ask [F]orce and the findings
    thereof.
    Lori Statam testified on behalf of the [MWC]. Ms. Statam
    testified that she is a resident of Hilty Road, in Export,
    adjacent to the proposed well site. Ms. Statam testified that
    5
    she operates a horse farm with Friesian horses imported
    from Holland. Ms. Statam testified that her property is
    situated adjacent to the proposed well site on Bollinger
    Road, which she described as being on the upper level. Ms.
    Statam testified that the road winds around to Hilty Road
    and has identified her location as downwind to the east of
    the proposed well site. She expressed concern with regard
    to the [6] to [10] baby horses produced each year and the
    possible impact upon them including the fertility of mares
    and stallions; namely, as a result of benzine. Ms. Statam
    presented testimony with regard to her concern involving
    the [water] wells that service her property, the risks
    presented to her by the well drilling companies[,] and [the]
    private testing that she had performed upon the water
    servicing her property.
    Jason Gehringer testified for [HHEX]. Mr. Gehringer
    testified as a [geographic information systems (GIS)]
    analyst for [HHEX] describing his work as spaciously
    analyzing, creating[,] and maintaining data for the
    enterprise data base for the various departments and
    employees of HHEX. It is specifically noted that Mr.
    Gehringer was not called as an expert witness but was
    called as a fact witness to plot existing information that is
    available in public and other data bases. Mr. Gehringer
    testified with regard to distances from various properties to
    the edge of the well pad and location of the hall route.
    Cynthia Gesuale testified as an intervenor [Landowner].
    Ms. Gesuale testified that she is a resident of Hoy Farm
    Court located within the Municipality [] but with an Export
    mailing address. Ms. Gesuale testified that she owns
    approximately 57 acres of land with her husband, David,
    having owned the same since 1995. She testified that the
    property is subject to an oil and gas lease with [HHEX].
    Ms. Gesuale testified that she attended all but one of the
    informational meetings, during [which] the subject of oil
    and gas amendments were debated or discussed in [the
    Municipality], and also attended informational meetings at
    which representatives of the Pennsylvania Department of
    Environmental Protection [(DEP)] presented information to
    [the Municipality].
    6
    (Board’s decision at 1-2.)
    Following the hearings, the Board denied MWC’s substantive validity
    challenge. In so doing, the Board issued 167 findings of fact, and the following
    findings represent those that are most critical to the legal issues presented in this
    appeal:
    29. The Municipality has a history of gas development
    and had permitted conventional wells as a conditional use in
    three of the four residential zoning districts (R-R, R-1, and
    R-2). Drilling [was] governed by the [former] Pennsylvania
    Oil and Gas Act of 1984 and the Municipality’s
    [Ordinance].
    30. The only residential district where conventional gas
    wells were not permitted was in the Municipality’s least
    restrictive and most dense zoning district, the R-3 District,
    which contains smaller lot sizes.
    31. The [] Ordinance continues to permit conventional
    gas wells as a conditional use in the R-R, R-1, and R-2
    zoning districts, but does not permit them in the R-3 district.
    ....
    34. In 2010, the [Council] created a [T]ask [F]orce
    comprised of residents, public officials, and experts in the
    field to investigate unconventional wells as a use in the
    Municipality and to begin the process of creating an
    ordinance to address unconventional wells [].
    ....
    39. The Municipality began to review the 2011
    Amendment [to the Ordinance] after the Pennsylvania
    Supreme Court’s Robinson Township decision in 2013.[7]
    7
    Robinson Township v. Commonwealth, 
    83 A.3d 901
    , 954 (Pa. 2013) (plurality).
    7
    Murrysville was one of the municipalities that supported the
    filing of the action opposing Act 13.[8]
    40. [The] Council determined that it would be in the best
    interest of the community to reconvene the Task Force to
    review the 2011 Amendment to see what, if anything,
    should be updated.       In March 2014, [the] Council
    authorized revising the 2011 Amendment and reconvened
    the Task Force to review the ordinance in light of the
    Robinson Township decision.
    41. Between March 2014 and May 2015, the Task Force
    met nine times to review the 2011 Amendment and
    provided three briefing reports to [the] Council. From April
    2014 to May 2017, the Municipality held four public
    hearings, four public educational sessions, and five
    Planning Commission meetings to discuss potential options
    to determine appropriate locations for unconventional oil
    and gas drilling sites. The subject of oil and gas also
    appeared 23 times on [the] Council’s agenda during that
    same time period.
    ....
    47. Preparation of the revised ordinance was done in
    conjunction with the Municipality’s review of other
    municipal oil and gas ordinances and research on oil and
    gas regulation in Pennsylvania and other states.
    ....
    49. During [the] development of the [2017 Amendment],
    the Municipality was also updating its Comprehensive Plan.
    As part of the Comprehensive Plan update, the Municipality
    prepared a map that identified potential future development
    areas for the next 10 years, the next 10 to 20 years, and
    beyond 20 years.
    ....
    8
    58 Pa.C.S. §§2301-3504.
    8
    51. Because the Municipality is primarily a residential
    community, with 93[%] of the community being zoned
    residential, one of the guiding principles in developing the
    [2017 Amendment] was to minimize the impact of
    unconventional drilling to the greatest extent possible on the
    existing population.
    ....
    53. Approximately five percent of the Municipality is in
    the B-1 Business District. The Municipality does not have
    an industrial zoning district. The Municipality concluded
    that the B-1 District would not be suitable for
    unconventional drilling based upon the density of the
    district and the availability of open space within the district.
    ....
    60. While reviewing the 600-foot setback requirement of
    the 2011 Amendment and taking into consideration the
    Supreme Court’s Robinson Township decision, Mr.
    Morrison indicated that the Task Force’s goal was to
    increase setbacks if possible. In considering increasing the
    setback distance, the Task Force tried to balance residents’
    property rights while appropriately providing for
    unconventional gas drilling. The Task Force attempted to
    provide the maximum protection to residents and minimize
    potential impacts on community property values, while at
    the same time providing for unconventional gas drilling.
    ....
    63. The Task Force looked at well pad sizes on permitted
    well sites in neighboring municipalities. Mr. Morrison
    reviewed a chart he prepared that provided a comparison of
    assumed setback acreage available in the Municipality
    when applying factors such as setback distances and slope
    percentages.
    64. Based on its review, the Task Force concluded that
    the minimum well pad size was approximately 3 1/2 acres.
    The Task Force used this acreage as its basis for the
    preparation of the zoning map.
    9
    65. The Task Force determined that any parcel exceeding
    3 1/2 acres but approaching [5] acres could be considered
    for well pad development.
    ....
    71. The bulk of the Overlay District created by the 2011
    Amendment was in the R-R District.
    72. There were no material changes in the Overlay
    District between the 2011 Amendment and the [2017
    Amendment].
    73. The [2017 Amendment] increased the required
    setback [distance] to 750 feet from the edge of the well pad
    to a protected structure and reduced the areas available for
    oil and gas development. The actual wellbore is typically in
    or around the middle of a well pad, so there would be
    additional distance from the edge of the well pad to the
    wellbore. By comparison, the Act 13 setback [was] 500 feet
    from the wellbore, not from the edge of the well pad as
    required by the 2017 Amendment.
    ....
    75. The [2017 Amendment] contains 17 pages of
    requirements with which an oil and gas operator must
    comply in order to perform unconventional drilling in the
    Municipality.
    ....
    79. The Municipality’s Environmental Advisory Council
    ([]EAC[]) also reviews conditional use applications at
    advertised meetings, which the public is invited to attend.
    As of the date of Mr. Morrison’s testimony, the EAC had
    reviewed the Titan Pad conditional use application at two of
    its meetings.
    80. Once the EAC and [the] Planning Commission have
    completed their respective reviews of the Titan Pad
    conditional use application, the conditional use application
    10
    is referred to [the] Council. [The] Council advertises and
    holds a public hearing, and at the conclusion of the public
    hearing, publicly votes on the conditional use application.
    ....
    84. Under the MPC and the Municipality’s [Subdivision
    and Land Development Ordinance (SALDO)], [the]
    Council may impose conditions on the Titan Pad land
    development application to the extent set forth in the
    SALDO.
    85. The Municipality has additional requirements related
    to the approval of the Titan Pad, including road bonding for
    excess weight vehicles using posted Municipal roads, a
    driveway permit for construction of the access road, and a
    grading permit.
    86. None of the individual Objectors testified at the
    public hearing on the [substantive] [v]alidity [c]hallenge.
    87. Mr. Skeers is the President of the MWC and lives in
    the Municipality. . . . He has lived at this address for 16
    years.
    ....
    101. It is Mr. Skeers’ position that unconventional gas
    drilling should be in an industrial zoning district, and not in
    a residential district. Mr. Skeers would not have any
    objections if unconventional drilling was placed into an
    industrial zoning district, even if that district did not have
    enough acreage and effectively banned the use from the
    Municipality.
    ....
    106. Ms. Statam identified herself as a supporter of the
    MWC. She has lived in the Municipality . . . for 12 years.
    Ms. Statam stated that she lives across the street from the
    proposed Titan Pad.
    ....
    11
    117. Ms. Statam expressed concerns about benzene and its
    impact on the fertility of the mares and stallions that are
    kept on her farm due to the proximity of her property to the
    proposed Titan Pad. She also expressed concerns about
    potential mining subsidence on her property based on past
    mining in the Municipality.
    118. Ms. Statam stated that large triaxle trucks visit her
    property from time to time to place extra gravel on her road.
    119. Ms. Statam indicated that larger sized trucks, such as
    concrete trucks, drive past her property a couple of times a
    week, not to visit her property but to go elsewhere. She
    stated that these larger size trucks are noisy. These trucks
    come closer than 750 feet to her home and horse farm.
    120. Mr. Gehringer serves as a [GIS] analyst for HHEX.
    Mr. Gehringer’s primary responsibilities are to spatially
    analyze, create, and maintain data for the enterprise
    geodatabase for the various departments and employees of
    HHEX. In addition, he handles all mapping requests. This
    includes taking public and other regularly generated data
    and plotting it out on maps.
    ....
    122. Mr. Gehringer prepared a map denoting the “no drill
    zones” in the Municipality, i.e., those areas located outside
    the Overlay District. The map also illustrated the Overlay
    District, and the location of the Titan Pad within it, along
    with the proposed truck route. The map showed the
    distances from the edge of [] Objectors’ properties to the
    edge of the Titan Pad. [] Objectors’ homes are located a
    greater distance from the Titan Pad than the edges of their
    property lines.
    123. The distance from the edge of Objector Dominique
    Ponko’s property to the edge of the Titan Pad is 3,304 feet.
    124. The distance from the edge of Objector Barbara
    Sims’s property to the edge of the Titan pad is 10,007 feet.
    12
    125. The distance from the edge of Objectors Joe and Judy
    Evans’ property to the edge of the Titan pad is 10,160 feet.
    126. The distance from the edge of Objector Susan
    Stewart-Bayne’s property to the edge of the Titan Pad is
    15,969 feet.
    127. The distance from the edge of Objector Jean Martin’s
    property to the edge of the Titan Pad is 5,510 feet.
    ....
    135. There are 148 active conventional shallow wells in
    the Municipality.
    ....
    140. [] Objectors’ properties are all located closer to
    existing oil and gas facilities, gas transmission lines, or gas
    wells than they are to the Titan Pad.
    141. The total acreage of the Municipality subject to oil
    and gas leases is 11,613 acres, which is approximately
    49.3[%] of the Municipality’s land mass.
    142. Of the total leased acreage in the Municipality, 7,000
    acres are located within the Overlay District, which is
    76.8[%] of Overlay District’s land mass.
    143. 4,613 acres are leased outside the Overlay District,
    which is 23.2[%] of the land mass outside the Overlay
    District.
    ....
    146. Since 1965, the levels of Muncipal regulation of, and
    limitations on, oil and gas development have become
    increasingly stricter . . . .
    (Board’s Findings of Fact (F.F.) at Nos. 29-31, 34, 39-41, 47, 49, 51, 53, 60, 63-65,
    71-73, 75, 79-80, 84-87, 101, 106, 117-20, 122-27, 135, 140-43, 146) (citations to the
    record omitted).
    13
    On further appeal, the trial court, without receiving additional evidence,
    affirmed the Board’s decision denying the MWC’s substantive validity challenge to
    the 2017 Amendment.        In so doing, the trial court concluded that this Court’s
    decisions in Frederick v. Allegheny Township Zoning Hearing Board, 
    196 A.3d 677
    (Pa. Cmwlth. 2018) (en banc), Delaware Riverkeeper Network v. Middlesex
    Township Zoning Hearing Board (Pa. Cmwlth., No. 2609 C.D. 2015, filed June 16,
    2019) (unreported), and Protect PT v. Penn Township Zoning Hearing Board, 
    220 A.3d 1174
     (Pa. Cmwlth. 2019), effectively foreclosed the MWC’s constitutional and
    statutory challenges. In notable part, the trial court succinctly concluded:
    A review of the record shows that the [MWC] set forth no
    evidence that would differentiate the [2017 Amendment] in
    the present case from any of the ordinances which were
    upheld on appeal [to this Court] and discussed supra; in fact
    the [2017 Amendment] is more protective of the citizens of
    [the Municipality] than the above-cited cases. . . . The
    [Board] was not acting arbitrarily in finding [the MWC’s]
    contention that unconventional well development is
    incompatible with the R-R District to be unsupported by
    any evidence and contrary to precedent[ial] law.
    (Trial court op. at 7.)
    The MWC appealed to this Court.
    Discussion
    As mentioned previously, the MWC mounts various constitutional and
    statutory challenges to the 2017 Amendment. The MWC also asserts that the Board
    committed evidentiary-related errors during the proceedings.
    14
    I. Substantive Due Process/Spot Zoning
    The MWC contends that the 2017 Amendment violates substantive due
    process because unconventional oil and gas drilling is an industrial land use and is
    incompatible with the stated purpose of the R-R District. The MWC asserts that the
    Overlay District imposed upon the R-R District was created “merely . . . to allow for
    the profiting from the emerging shale gas energy boom, not for the legislative and
    required police power purpose of protecting the public health.” (MWC’s Br. at 22.)
    Somewhat similarly, the MWC states that the 2017 Amendment, by “[a]llowing oil
    and gas drilling and waste water impoundments into the R-R zoning district[,]
    constitutes an unconstitutional ‘spot zone,’ as the surrounding residential uses and
    purpose of the district are incompatible with the use as further evidenced by some
    areas in the R-R zoning district being excluded from the overlay.” (MWC’s Br. at
    26.)
    Initially, we recognize that “[a] zoning ordinance is presumed to be
    valid. Therefore, one challenging the zoning ordinance has the heavy burden of
    establishing its invalidity. Where the validity of the zoning ordinance is debatable,
    the legislative judgment of the governing body must control.” Woll v. Monaghan
    Township, 
    948 A.2d 933
    , 938 (Pa. Cmwlth. 2008).               “In Pennsylvania, the
    constitutionality of a zoning ordinance is reviewed under a substantive due process
    analysis.” Plaxton v. Lycoming County Zoning Hearing Board, 
    986 A.2d 199
    , 204
    (Pa. Cmwlth. 2009). “Under such analysis, the party challenging the validity of
    provisions of the zoning ordinance must establish that they are arbitrary and
    unreasonable and have no substantial relationship to promoting the public health,
    safety, and welfare.” 
    Id.
     Further, “the exercise of judgment in regard to zoning
    regulations will not be interfered with except where there is obviously no relation to
    15
    health, safety, morals or general welfare.”        Ethan-Michael, Inc. v. Board of
    Supervisors of Union Township, 
    918 A.2d 203
    , 210 (Pa. Cmwlth. 2007).
    Further, under Pennsylvania law, “spot zoning is the unreasonable or
    arbitrary zoning classification of a small parcel of land, dissected or set apart from
    surrounding properties, with no reasonable basis for the differential zoning.” Penn
    Street, L.P. v. East Lampeter Township Zoning Hearing Board, 
    84 A.3d 1114
    , 1120
    (Pa. Cmwlth. 2014). “The most determinative factor in an analysis of a spot zoning
    question is whether the parcel in question is being treated unjustifiably different from
    similar surrounding land, thus creating an ‘island’ having no relevant differences
    from its neighbors.” 
    Id. at 1121
     (citation omitted).
    In its decision, the Board addressed these issues in the following
    findings of fact:
    45. The Council acted within its constitutional police
    power in adopting the [the 2017 Amendment] to further the
    general welfare of its citizens by permitting them to benefit
    economically from unconventional natural gas resources
    and royalties, in order to help their livelihood and way of
    life. At the same time, [the Council] took into account the
    interests of the general public by adopting an extensive
    regulatory regime, far beyond that imposed on any other
    use, addressing issues such as required yards, setbacks,
    water withdrawal, wastewater disposal, erosion and
    sediment control, public notice, traffic impact, noise
    management, emergency response[,] and roadway
    maintenance and repair. The [2017 Amendment] also
    requires applicants for unconventional natural gas drilling
    to proceed through the public conditional use and land
    development processes, which can result in the imposition
    of numerous additional requirements and limitations.
    ....
    47. The [2017 Amendment] promotes the public health,
    safety, and welfare of the community by requiring that
    16
    unconventional natural gas development comply with
    rigorous state and federal permitting requirements, and by
    supplementing those requirements with additional standards
    and criteria aimed at mitigating local impact. . . .
    48. In summary, applying the substantive due process
    balancing test, the Board concludes that the Council did not
    violate Objectors’ due process rights in adopting the Zoning
    Ordinance.
    (Board’s F.F. at Nos. 45, 47-48) (internal citations omitted).
    In sum, the Board concluded:
    63. The Overlay District constitutes rational planning and
    balancing of interests as evidenced by: (i) the area within
    the Overlay District has limited public infrastructure; (ii)
    the area within the Overlay District has the least density of
    structures, thereby limiting unconventional oil and gas
    operations to less dense residential and agricultural areas;
    and (iii) only [5%] of the Overlay District is useable for
    unconventional oil and gas wells when the 2017 Ordinance
    setback and the steep slope regulations are taken into
    account.
    (Board’s Conclusion of Law (C.O.L.) at No. 63.)
    In addressing the MWC’s substantive due process challenge on appeal,
    the trial court determined:
    That the [Board] in this case took into consideration the
    health, safety and welfare of the Municipality’s residents is
    supported by the record. Taking into account all of the
    [2017 Amendment’s] requirements, the [Board] found that
    only 5% of the [O]verlay [D]istrict is actually [and
    presently] usable for drilling and development. The
    [Board] additionally set out detailed findings regarding the
    rigorous and transparent process of deliberation,
    information gathering and development that the
    Municipality engaged in over a period of years in enacting
    the Ordinance in view of the health and safety of the
    community. The [Board] also noted that [the MWC] failed
    to meet its burden of showing that the challenged Ordinance
    17
    is “arbitrary, unreasonable and unrelated to the public
    health, safety, morals and general welfare,” because it did
    not present any scientific or expert testimony in support of
    this contention, as analogous to the situation in Frederick,
    196 A.3d [at] 687[.]
    (Trial court op. at 6-7) (some internal citations omitted).
    With respect to the MWC’s assertion that the 2017 Amendment
    constituted illegal spot zoning, the trial court opined:
    [The MWC] attempts to liken the Overlay District to
    impermissible “spot zoning” . . . . On the contrary, the
    [Board] found by competent evidence that the Overlay
    District is a sizable area that was chosen, not arbitrarily, but
    based on factors such as population density and locations of
    infrastructure.
    (Trial court op. at 12.)
    In Frederick, this Court rejected a substantive due process challenge to
    an ordinance that permitted unconventional oil and gas drilling as a permitted use by
    right in all of the municipality’s zoning districts, subject to numerous standards or
    conditions, which, inter alia, related to road safety; the clearing of brush and trees;
    emergency planning; dust, noise, and lighting controls; and security measures. The
    objectors in that case contended that the oil and gas ordinance contravened
    substantive due process because the township failed to (1) consider the public interest
    of the community as a whole; (2) protect the lives, morals, health, comfort, and
    general welfare; and (3) ensure that an individual’s use of his property will not
    infringe upon the property rights of neighboring property owners. The objectors
    further asserted that unconventional oil and gas development is incompatible with the
    uses allowed in the township’s residential districts and that the township failed to
    designate uses within the same district that are compatible with each other and, thus,
    engaged in impermissible “spot zoning.”
    18
    An en banc panel of this Court disagreed, reasoning, in relevant part, as
    follows:
    Here, the [z]oning [b]oard found that oil and gas operations
    have long existed in the R-2 [z]oning [d]istrict and provide
    needed income to [t]ownship residents, particularly farmers,
    so that they can maintain “their livelihood and way of life.”
    Notably, in Robinson Township[], 83 A.3d at 954, the
    plurality recognized “that development promoting the
    economic well[]being of the citizenry obviously is a
    legitimate state interest.” The [z]oning [b]oard found, as
    fact, that oil and gas operations, including shale gas
    development, have compatibly coexisted with other uses in
    the [t]ownship’s rural areas for many years . . . .
    Frederick, 196 A.3d at 688 (some internal citations omitted).
    Although the objectors in Frederick presented expert testimony as to the
    adverse effects of unconventional drilling on the environment and public health, the
    zoning board found that testimony to be not credible. As such, this Court upheld the
    zoning board’s determination that the objectors “did not present credible, substantial
    evidence” that the oil and gas pad “will, in fact, have any adverse effect on public
    health, safety, welfare or the environment.”        Id.   We stated that, instead, the
    “[o]bjectors presume, without any supporting evidence, that oil and gas operations,
    by their very nature, adversely affect property rights,” and rejected this assumption
    because “[m]ere speculation is insufficient to establish a real possibility of concrete
    harm to their property rights.” Id. at 688-89. In passing, we noted that “a gas well
    operator engaged in hydraulic fracturing and drilling operations is not subject to strict
    liability in tort” because “natural gas drilling does not constitute an abnormally
    dangerous activity” and the “risks may be substantially reduced through the exercise
    of due care in this field.” Id. at 689 n.17 (citing and quoting Ely v. Cabot Oil & Gas
    Corp., 
    38 F. Supp. 3d 518
    , 520, 531 (M.D. Pa. 2014)).
    19
    This Court in Frederick then addressed the objectors’ argument “that an
    ‘industrial’ use such as a natural gas well is incompatible with and must be
    segregated from the other uses in the R-2 [z]oning [d]istrict.” Id. at 690. We noted
    that the “[o]bjectors call[ed] oil and gas drilling ‘industrial’ throughout their briefs,”
    but “presented no evidence to the [z]oning [b]oard on what they meant by ‘industrial’
    or the significance of that term.” Id. at 690 n.20. Reviewing the record, this Court
    determined that the objectors failed to establish that unconventional gas drilling was a
    use that was incompatible with residential districts, or any zoning district for that
    matter, and determined that the evidence instead showed that “the municipality has
    evaluated its landscape and has chosen to allow oil and gas operations to take place in
    every zoning district, so long as certain exacting standards are satisfied.” Id. at 691.
    For these reasons, the Frederick Court concluded that the township’s oil
    and gas ordinance did not violate substantive due process and did not constitute
    illegal spot zoning.
    In Protect PT, the objectors challenged the constitutionality of a
    township’s Mineral Extraction Overlay (MEO) District to the extent that it permitted
    unconventional natural gas development (UNGD) in the Resource District, which
    consisted of low-density residential properties. The objectors contended that the
    Resource District was essentially a growing suburban community and that UNGD is a
    heavy industrial activity that is incompatible with residential use and the preservation
    of the environment.      Relying on Frederick to find no merit in the objectors’
    substantive due process claim, this Court stated:
    Similarly here, the fact-finding trial court held that the
    [t]ownship, in determining that UNGD is a proper use in the
    MEO District overlaying sparsely populated areas of the
    Resource District, engaged in lengthy proceedings before
    enacting the [z]oning [o]rdinance. The question of what
    20
    best serves the public interest is primarily a question for the
    appropriate legislative body in a given situation. During
    these proceedings, the [t]ownship carefully and
    appropriately balanced its obligation to provide for property
    owners’ development and management of minerals with its
    obligation to protect the health, safety and welfare of
    neighboring Resource District property owners. Based on
    our review of the record, we conclude the trial court’s
    determinations are supported by substantial evidence.
    220 A.3d at 1192.
    Upon review of the record and proceedings below, we concur in the trial
    court’s conclusions that the 2017 Amendment does not violate substantive due
    process or constitute unlawful spot zoning.      It is apparent that the Overlay District
    was enacted to encourage greater economic development, via unconventional oil and
    gas drilling, which is a legitimate state interest. See Robinson Township, 83 A.3d at
    954. As in Frederick and Protect PT, the Municipality has a long history of oil and
    gas development, beginning in 1965, when it permitted conventional oil and gas
    extraction in all zoning districts as a conditional use.       (Trial court op. at 2-3.)
    Importantly, the MWC failed to introduce evidence to establish that oil and gas
    drilling, as authorized in the Overlay District, was incompatible with the uses or
    overall character of the three residential zoning districts in which the Overlay District
    is located.   The MWC also failed to adduce competent evidence that the 2017
    Amendment was unreasonable and unrelated to the public health, safety, morals, and
    general welfare.
    To the contrary, the record demonstrates that the Municipality carefully
    and appropriately balanced the goal of economic development with its obligation to
    protect the health, safety, and welfare of property owners in the Overlay District. For
    instance, the Municipality created a Task Force, which “attempted to provide []
    maximum protection to its residents and minimize potential impacts on community
    21
    property values,” (Board’s F.F. at No. 60), and the 2017 Amendment “contains 17
    pages of requirements with which an oil and gas operator must comply in order to
    perform unconventional gas drilling.” (Board’s F.F. at No. 75). Specifically, akin to
    the ordinances in Frederick and Protect PT, the 2017 Amendment requires, among
    other things, that an oil and gas producer submit a comprehensive application,
    including all relevant permits and a detailed survey; the well sites are subject to 750-
    foot setbacks from all protected structures; and the proposed development is required
    to comply with stringent traffic regulations, fencing and impoundment guidelines,
    hours of operations limitations, inspections by the Municipality, and aesthetic
    integration standards.   (Trial court op. at 2-3.)    Further, the 2017 Amendment
    imposes requirements related to “required yards, setbacks, water withdrawal,
    wastewater disposal, erosion and sediment control, public notice, traffic impact, noise
    management, emergency response[,] and roadway maintenance and repair.” (Board’s
    F.F. at No. 45.) In addition, the EAC reviews conditional use applications, and the
    Council may impose additional conditions on the oil and gas project as set forth in the
    SALDO. (Board’s F.F. at Nos. 83-84.) Significantly, the MWC does not challenge
    any of the Board’s specific findings of fact, and it is well settled that “[u]ndisputed
    findings of fact are binding on this Court.”          West Perry School District v.
    Pennsylvania Labor Relations Board, 
    752 A.2d 461
    , 463 n.5 (Pa. Cmwlth. 2000).
    Therefore, we conclude that the MWC failed to establish that the 2017
    Amendment runs afoul of substantive due process or constitutes unlawful spot
    zoning.
    22
    II. The ERA
    The MWC asserts that the 2017 Amendment violates the ERA9 because
    it failed to adequately consider the effect of unconventional oil and gas drilling on the
    environment and the citizens’ constitutional rights to clean air and water. The MWC
    claims that the 2017 Amendment was designed solely to ensure that more drilling
    would occur, but the legislative body of the Municipality failed to review any public
    health evidence when enacting the 2017 Amendment.                         In this light, the MWC
    suggests, without any supporting evidence, that a setback distance of 750 feet is
    woefully inadequate.
    At its core, the ERA “protects the people from governmental action that
    unreasonably causes actual or likely deterioration” of public natural resources.
    Robinson Township, 83 A.3d at 953. Stated in somewhat different terms, “to achieve
    recognition of the[] rights enumerated in the first clause of [the ERA] as ‘inviolate’
    necessarily implies that economic development cannot take place at the expense of an
    unreasonable degradation of [public natural resources].” Id. at 954. Instead, “when
    government acts, the action must, on balance, reasonably account for the
    environmental features of the affected locale.” Id. at 953. Recently, in Frederick,
    this Court formulated the test to be used under the ERA. We concluded that judicial
    9
    This constitutional provision provides:
    The people have a right to clean air, pure water, and to the
    preservation of the natural, scenic, historic and esthetic values of the
    environment. Pennsylvania’s public natural resources are the common
    property of all the people, including generations yet to come. As
    trustee of these resources, the Commonwealth shall preserve and
    maintain them for the benefit of all the people.
    Pa. Const. art. I, §27.
    23
    review of governmental action entails a two-step inquiry “to determine, first, whether
    the values in the first clause of the [ERA] are implicated and, second, whether the
    governmental action unreasonably impairs those values.” 196 A.3d at 695.
    Here, the Board’s conclusions of law relevant to the MWC’s ERA
    challenge are as follows:
    65. [The MWC] presented no scientific or expert
    testimony supporting [its] contention that an unconventional
    oil and gas operation produces unreasonable amounts of air
    pollution, water pollution, noise pollution, truck traffic or is
    generally hazardous to the residents of [the Municipality]
    and its adjacent neighbors.
    66. [The MWC] presented no scientific or expert
    testimony supporting [its] contention that the 750[-]feet
    setback from the edge of the well pad to any protected
    structures is insufficient to protect [its members’] property,
    the environment or the public health, safety or welfare of
    the residents of [the Municipality].
    ....
    72. [The MWC] failed to meet [its] burden of proving
    that the [2017 Amendment] will adversely impact or harm
    [its members’] property rights, the environment or the
    public health, safety and welfare.
    73. [The MWC] failed to meet [its] burden of proving
    that the [2017 Amendment] unreasonably impairs the rights
    of the residents of [the Municipality] to clean air and pure
    water.
    74. [The MWC] failed to meet [its] burden of proving
    that the [2017 Amendment] does not reasonably account for
    the natural, scenic, historic and esthetic values of [the
    Municipality’s] environment.
    (Board’s C.O.L. at Nos. 65-66, 72-74.)
    24
    In disposing of the MWC’s ERA claim, the trial court offered the
    following rationale:
    [The MWC’s] argument here largely mirrors its argument
    with regard to substantive due process, discussed above.
    Again, it is clear that the Municipality did take into
    consideration environmental impacts of the Ordinance, as
    indicated by the exhaustive recitation in the [Board’s]
    [d]ecision of the [2017 Amendment’s] pre-adoption
    procedure. The [Board] notes that far less restrictive
    ordinances have been upheld by Pennsylvania Appellate
    Courts under an ERA analysis, and that [the MWC’s]
    argument with regard to compliance with Pennsylvania’s
    ERA must fail.
    (Trial court op. at 10-11) (internal citation omitted).
    In Frederick, this Court dismissed the objectors’ ERA claim and
    employed the following rationale:
    Zoning accounts for the “natural, scenic, historic and
    esthetic values of the environment.” Pa. Const. art. I, §27.
    It does so by placing compatible uses in the same zoning
    district; by establishing minimum lot sizes and dimensional
    requirements; providing parking and signage controls; and
    requiring landscape and screening controls. This list goes
    on. It is axiomatic that a zoning ordinance must balance the
    public interests of the community with the due process
    rights of private property owners. . . .
    [The] [o]bjectors assert the [t]ownship did not “genuinely
    consider” the environment in the enactment of Zoning
    Ordinance 01-2010 or in the issuance of the permit to [the
    oil and gas operator]. They presume, contrary to the
    plurality’s instruction in Robinson Township[], 83 A.3d at
    952, that local governments must enact “specific affirmative
    measures” to protect the environment that are duplicative of
    the many state laws that regulate oil and gas operations in
    Pennsylvania. . . .
    25
    In sum, a municipality may use its zoning powers only to
    regulate where mineral extraction takes place.              A
    municipality does not regulate how the gas drilling will be
    done. [The objectors’] complaints about the purported
    harm to the environment from the operations of the [well]
    [p]ad project should have been addressed to the state
    agencies that issued [the oil and gas operator] its operating
    permits. . . .
    [The objectors] did not prove that [the] [z]oning [o]rdinance
    [ ] is a law that “unreasonably impairs” their rights under
    the [ERA]. [The objectors] did not prove that [the] [z]oning
    [o]rdinance [ ] does not reasonably account for the natural,
    scenic, historic and esthetic values of the [t]ownship’s
    environment. Indeed, [the board] reached the contrary
    conclusion. It credited the testimony of [the oil and gas
    operator’s] expert . . . who stated that there is a long history
    of oil and gas development safely coexisting with
    agricultural uses in the rural areas of the [t]ownship and that
    unconventional gas development will actually help preserve
    farming in the R-2 District. We hold that [the] [z]oning
    [o]rdinance [ ] does not violate the [ERA].
    Frederick, 196 A.3d at 692-98 (footnotes omitted and emphasis in original).
    Importantly, this Court in Frederick determined “that construing the [ERA] to require
    some sort of ‘pre-action environmental impact analysis’ is a novel construction
    without any foundation in Pennsylvania Law” and declined to impose a burden on a
    municipality to prove that it engaged in such an analysis. Id. at 700.
    In Protect PT, the objectors asserted that, although the township held
    many meetings prior to enacting the zoning ordinance, there was no evidence in the
    record that the township “actually identified or evaluated the environmental impacts
    of its decision-making in creating the MEO District,” and, as such, the township
    “failed to consider the environmental impacts of its decision.” 220 A.3d at 1197. In
    addition, the objectors argued that “the [t]ownship succumbed to the pressure of the
    [oil and gas industry’s] interests looking to conduct UNGD in the [t]ownship” by
    26
    “imposing industry-preferred standards” in the ordinance. Id. Thus, according to the
    objectors, “the [t]ownship’s enactment of the MEO District violate[d] the ERA and
    [would] result in unreasonable environmental degradation in the [t]ownship.” Id.
    We disagreed with these contentions and dismissed the objectors’ ERA
    claim.   Initially, this Court noted that the zoning ordinance stated that an applicant
    for a permit must establish that its oil and gas project will comply with the ERA and
    will not violate the citizens’ rights thereunder. More specifically, the ordinance
    obligated the applicant for a permit to include in the application reports from
    qualified environmental individuals attesting that the proposed location will not
    negatively impact the township residents’ environmental rights. The ordinance also
    required an applicant to submit air modelling and hydrogeological studies relating to
    potential pathways in an event a spill or release of fluid would occur. This Court in
    Protect PT then stated:
    As reflected by . . . the [z]oning [o]rdinance, the [t]ownship
    did consider its residents’ rights under the ERA. . . .
    In Frederick, we reviewed a similar situation elsewhere in
    Westmoreland County where the objectors argued that the
    zoning ordinance violated the ERA by placing UNGD, an
    alleged industrial use, in agricultural areas. The objectors
    maintained that the UNGD well would degrade the local
    environment in which people live, work[,] and recreate,
    including the public natural resources on which people rely.
    The objectors in Frederick advanced arguments nearly
    identical to those raised here. In rejecting these arguments,
    the fact-finder in Frederick relied on [expert] testimony that
    oil and gas development safely coexisted with agricultural
    uses in the rural areas of the township. We noted in
    Frederick that the ERA does not call for a stagnant
    landscape or a derailment of economic development.
    27
    By failing to show with credible evidence that UNGD
    would adversely affect neighboring property owners in the
    Resource District, [the objectors] failed to establish that the
    Zoning Ordinance “unreasonably impairs” the rights of
    Township residents under the ERA. See Frederick, 196
    A.3d at 697[.]
    Further, the plurality in Robinson [Township] stated that the
    ERA does not impose express duties on municipalities to
    enact specific affirmative measures to promote clean air,
    pure water and the preservation of different values of our
    environment.         As we recognized in Frederick,
    municipalities lack the authority to replicate the
    environmental oversight that the General Assembly
    conferred upon DEP and other state agencies. . . . Rather, a
    zoning ordinance must balance the public interests of the
    community with the due process rights of private property
    owners. . . .
    In sum, the trial court did not err or abuse its discretion by
    failing to find that the [z]oning [o]rdinance violated
    [t]ownship residents’ rights under the ERA.
    220 A.3d at 1197-98.
    Following and applying our decisions in Frederick and Protect PT and
    incorporating by reference our prior analysis set forth above, we agree with the trial
    court’s conclusions that the 2017 Amendment does not violate the ERA. Quite
    simply, on the current record, the MWC did not prove that the 2017 Amendment
    “unreasonably impairs” the Municipality’s citizens’ rights under the ERA. Notably,
    as reflected in our case law, the Municipality was not obligated to conduct a “pre-
    action environmental impact analysis” and, in enacting an unconventional oil and gas
    well ordinance, a municipality need only demonstrate, through the ordinance’s design
    or some other form of evidence, that it considered the citizens’ rights under the ERA.
    Here, the Municipality carefully crafted the Overlay District as the place where
    unconventional oil and gas may be permitted via a conditional use. In so doing, the
    28
    Municipality decided that it was appropriate for wells to be located in the R-R, R-1,
    and R-2 Districts, but not the R-3 District or the B-1 Business District, because these
    districts were more dense, population-wise, and/or contained smaller lot sizes.
    (Board’s F.F. at Nos. 29-31, 53.)       Moreover, after the Supreme Court issued
    Robinson Township in 2013, the Municipality reconvened the Task Force and
    reassessed the appropriate locations for unconventional oil and gas drilling sites in an
    attempt to minimize the impact of unconventional drilling to the greatest extent
    possible on the existing population. See Board’s F.F. at Nos. 40-41, 47, 51, 60, 63,
    64, 65.
    Therefore, we conclude that the MWC did not carry its burden of
    proving that the 2017 Amendment violated the ERA.
    III. The MPC
    The MWC asserts that the 2017 Amendment violates various provisions
    of the MPC because it permits a heavy and industrial use—oil and gas
    development—in the R-R District and fails to protect the public health and provide a
    safe and reliable water supply. The MWC further argues that the 2017 Amendment
    does not comport with the MPC because, “[r]ather than creating uniform classes
    within each zoning district,” the 2017 Amendment “singles out unconventional
    drilling for special treatment.” (MWC’s Br. at 47.) According to the MWC, this
    “necessarily lead[s] to the anomaly that unconventional drilling is permitted in the R-
    R [D]istrict whether the other uses are compatible or not and[,] due to the overlay[,]
    not all residents in the R-R district have ‘uniform provisions.’” (MWC’s Br. at 47.)
    Section 604 of the MPC provides, in part, that zoning ordinances shall
    be designed “[t]o promote, protect and facilitate any or all of the following: the
    29
    public health, safety, morals, and the general welfare; coordinated and practical
    community development and proper density of population . . . .” 53 P.S. §10604.
    The MPC further provides:
    Zoning ordinances enacted after the effective date of this
    act should reflect the policy goals of the municipality as
    listed in a statement of community development objectives,
    recognizing that circumstances can necessitate the adoption
    and timely pursuit of new goals and the enactment of new
    zoning ordinances which may neither require nor allow for
    the completion of a new comprehensive plan and approval
    of new community development objectives.
    Section 606 of the MPC, 53 P.S. §10606.
    The policy goals set forth in the Municipality’s Community
    Development Objectives track those laid out in the MPC and are as follows:
    A. To promote, protect and facilitate one or more of the
    following: the public health, safety and general welfare;
    coordinated and practical community development; proper
    density of population; civil defense; disaster evacuation; the
    provision of recreation, open space and harmonious design;
    the provision of adequate light and air, police protection,
    vehicle parking and loading space, transportation, water,
    sewerage, schools, public grounds and other public
    requirements; and
    B. To prevent one or more of the following: overcrowding
    of land; blight; danger and congestion in travel and
    transportation; and loss of health, life or property from fire,
    panic or other dangers.
    Ordinance, §201-3.
    On review, the trial court provided the following recitation and legal
    analysis:
    In rendering its decision, the [Board] directly addressed [the
    MWC’s] argument, relying on the Commonwealth Court’s
    holding in Frederick which addressed and rejected similar
    30
    arguments regarding compliance with the MPC on the same
    basis that [the] objectors’ substantive due process argument
    was rejected, as discussed above. Frederick, 196 A.3d at
    698-700. The [Board] additionally made specific findings
    that the regulations and requirements in the [2017
    Amendment] are protective of the welfare and safety of the
    community and environment, and that [the MWC] failed to
    set forth any evidence which would tend to show
    incompatibility of unconventional oil and gas development
    with the aims of the Community Development Plan. The
    [Board] thus did not abuse its discretion or commit an error
    of law in finding that the [2017 Amendment] is in
    compliance with the MPC.
    (Trial court op. at 9-10) (some internal citations omitted).
    As noted above by the trial court, in Frederick, this Court addressed
    arguments that are substantially similar to those presented by the MWC here and
    concluded that they lacked merit:
    [The objectors] next argue that [the] [z]oning [o]rdinance . .
    . violates [s]ections 603(a), 604 and 605 of the MPC. [The
    objectors] argue it violates [s]ection 603 of the MPC
    because “the ordinance is potentially detrimental to public
    health, safety, and general welfare, as well as detrimental to
    a safe, reliable and adequate water supply within [the R-2
    Zoning District]” and, as such, is contrary to the statement
    of community objectives set forth in the [z]oning
    [o]rdinance. [The objectors] contend that [the] [z]oning
    [o]rdinance [] violates [s]ection 604 of the MPC because
    permitting unconventional gas well development in all
    zoning districts will . . . place “water sources and other
    environmental assets at risk[.]” [The objectors] assert that
    [the] [z]oning [o]rdinance . . . violates [s]ection 605 of the
    MPC because it allows incompatible uses to take place
    within the R-2 [z]oning [d]istrict.
    [The oil and gas operator] responds that [the objectors’]
    alleged violations of the MPC reiterate the same arguments
    they made in their substantive due process claim; their
    arguments should fail for the same reasons discussed earlier
    in this opinion. We agree.
    31
    First, the [z]oning [b]oard held that [the objectors’] claims
    that [z]oning [o]rdinance 01-2010 will cause safety or
    environmental problems were not supported by evidence.
    [The o]bjectors have not challenged any of the [z]oning
    [b]oard’s findings of fact or conclusions of law on these
    points. Thus, they have not shown a violation under
    [s]ection 603 of the MPC.
    Second, the [z]oning [b]oard rejected [the objectors’] expert
    and did not credit his testimony. Thus, [the objectors]
    cannot rely on that evidence to support their concerns under
    [s]ection 604 of the MPC.
    Third, the [z]oning [b]oard rejected [the objectors’]
    assertion that natural gas development is not a compatible
    use in the R-2 [z]oning [d]istrict. Again, [the objectors]
    have not challenged the [z]oning [b]oard’s findings and
    point to no credited evidence that would refute this
    conclusion. [The objectors] have presented only conclusory
    arguments without reference to the enumerated uses
    allowed in the R-2 [z]oning [d]istrict and how oil and gas
    drilling is incompatible with those uses.
    196 A.3d at 699-700 (internal citations omitted).
    Notably, in Delaware Riverkeeper Network, this Court reiterated that,
    absent competent proof, an objector’s assertion of incompatibility in land uses lacks
    merit.   This is because, without supporting proof, the argument is based “on the
    faulty premise that unconventional gas drilling is a fundamentally incompatible
    industrial use as a matter of law in the relevant zoning district.” Id., slip op. at n.16.
    Here, we affirm the trial court’s conclusions that the 2017 Amendment
    does not violate the MPC. In so doing, we incorporate by reference our preceding
    analyses addressing the MWC’s constitutional arguments, finding that it adequately
    disposes of the MWC’s MPC claims, which are overwhelmingly duplicative of their
    constitutional claims. In short, we conclude that the MWC failed to demonstrate that
    32
    unconventional well drilling is a use that is incompatible with the Overlay District as
    a whole or the R-R District, to the extent that it is located within the Overlay District.
    IV. Special Legislation/Equal Protection
    The MWC asserts that the 2017 Amendment violates the equal
    protection analysis embodied within article III, section 32 of the Pennsylvania
    Constitution because the Overlay District is a special law that is designed to favor the
    oil and gas industry. The MWC claims “that only the oil and gas industry was
    granted an overlay in various residential districts”; since oil and gas operations are
    not permitted in all of the R-R District, the “citizens that live in [the Municipality’s]
    R-R District are not treated equally”; and, thus, “some residents were given greater
    protections than others despite the uniform purpose of the R-R District applying
    evenly to all citizens.” (MWC’s Br. at 54.)
    The MWC further contends that its members “cannot use their property
    in any manner they please, but there is no reciprocal restriction on the oil and gas
    industry, which may use whatever land it sees fit in the R-R [] District for intensive,
    heavy industrial activities . . . simply because a determination has been made to favor
    that particular industry.” (MWC’s Br. at 53.) According to the MWC, the 2017
    Amendment “readily removed the expectations and safeguards provided for and
    relied upon by the citizen inhabitants of the R-R District to favor corporate oil and
    gas interests,” (MWC’s Br. at 54), and the Municipality, recognizing the harm that oil
    and gas operations create, “sought to protect the majority of its citizens[] to the
    detriment of the minority of citizens.” (MWC’s Br. at 56.)
    With respect to claims under article III, section 32, our Supreme Court
    has “repeatedly held that the underlying purpose of this section is analogous to the
    33
    equal protection clause of the federal constitution and that our analysis and
    interpretation of the clause should be guided by the same principles that apply in
    interpretation of federal equal protection.” DeFazio v. Civil Service Commission of
    Allegheny County, 
    756 A.2d 1103
    , 1105 (Pa. 2000).
    Equal protection principles do not, however, vitiate the
    Legislature’s power to classify, which necessarily flows
    from its general power to enact regulations for the health,
    safety, and welfare of the community. Nor do they prohibit
    differential treatment of persons having different
    needs, provided the classifications at issue bear a reasonable
    relationship to a legitimate state purpose. In this regard, a
    classification, though discriminatory, will be deemed
    reasonable if any state of facts reasonably can be conceived
    to sustain it. However, a classification will be struck down
    if it is based upon artificial or irrelevant distinctions used
    for the purpose of evading the constitutional prohibition. In
    undertaking its analysis, a reviewing court is free to
    hypothesize reasons the Legislature might have had for the
    classification.
    Harrisburg School District v. Zogby, 
    828 A.2d 1079
    , 1088-89 (Pa. 2003) (internal
    citations omitted).
    Addressing the equal protection issue advanced by the MWC, the trial
    court concluded:
    Looking to the decision of the [Board], it is clear that the
    [Board] made specific findings and conclusions that the
    classifications set out in the Ordinance are reasonable as
    opposed to arbitrary. The [] MPC specifically mandates
    that “[z]oning ordinances shall provide for the reasonable
    development of minerals in each municipality.” 53 P.S.
    §10603. The [Board] found that the Overlay District
    provided a reasonable and specific balancing of the rights of
    the citizens while still allowing for unconventional oil and
    natural gas development.
    (Trial court op. at 12) (internal citations omitted).
    34
    Upon review, we concur in the trial court’s conclusions that the 2017
    Amendment does not violate principles of equal protection. Our analyses set forth
    above in the preceding sections of this opinion, at least to a large degree, severely
    undermine the MWC’s contentions and demonstrate that the Municipality crafted the
    2017 Amendment in order to promote oil and gas development in the Overlay
    District. Contrary to the MWC’s assertion, a municipality may create zoning districts
    that are specifically designed for business and industry purposes, and the distinction
    between business uses and residential uses is a differentiation that is rationally related
    to the goal of promoting economic development. To the extent the MWC asserts that
    the Overlay District violates equal protection because part of the R-R District is not
    located within the Overlay District, the Municipality had a rational basis for such an
    exclusion.   Specifically, the Municipality devised the Overlay District based on
    available acreage size and could have reasonably determined that a portion of the R-R
    District was too dense, geographically speaking, to be included within the Overlay
    District. See Board’s F.F. at Nos. 64-65, 71-72. Therefore, we agree with the
    tribunals below and conclude that the MWC failed to establish that the 2017
    Amendment is unlawful special legislation or violates the principles of equal
    protection of the law.
    V. Overlay District and Comprehensive Plan
    The MWC asserts that the 2017 Amendment designs the Overlay
    District in an unlawful manner. The MWC states that the 2017 Amendment “unduly
    disturbs the expectations created by the existing R-R [] District, as overlay essentially
    supersedes the rural and residential nature of the R-R [] District.” (MWC’s Br. at
    58.)   In addition, the MWC contends that the 2017 Amendment violates the
    35
    requirement that a zoning ordinance must be generally consistent with the
    comprehensive plan.
    “An overlay district creates a framework for conservation or
    development allowing for a new type of development or imposing restrictions that is
    superimposed over the zoning districts on all or part of a municipality.” Main Street
    Development Group, Inc. v. Tinicum Township Board of Supervisors, 
    19 A.3d 21
    , 28
    (Pa. Cmwlth. 2011) (en banc).      “The purpose of an overlay district is to create
    specific and targeted provisions that conserve natural resources or realize
    development objectives without unduly disturbing the expectations created by the
    existing zoning ordinance.”    
    Id.
     (emphasis omitted).     “In other words, overlay
    districts supplement existing zoning districts; they do not supersede them either in
    fact or practice.” 
    Id.
    First and foremost, this Court observes our holding that, “in accord with
    [s]ection 303(c) of the MPC, no action by the governing body of a municipality shall
    be invalid or be subject to challenge on appeal on the basis that such action is
    inconsistent with, or fails to comply with the provisions of a comprehensive plan. 53
    P.S. §10303(c).” Protect PT, 
    220 A.3d 1194
    -95. To a large extent, this legal
    proposition refutes the MCW’s argument that the 2017 Amendment contravenes the
    Municipality’s Comprehensive Plan.
    Regardless, and in any event, the Board determined that
    there is nothing inconsistent between the Zoning Ordinance
    and the Comprehensive Plan. The Comprehensive Plan
    specifically anticipated that the Municipality would embark
    on a continuing evaluation of its regulation of oil and gas
    development, which is precisely what it did.           The
    Comprehensive Plan did not state that oil and gas
    development was incompatible with any specific area of the
    Municipality, and recommended that the Municipality
    36
    “strive to have a regional cohesiveness in the preservation
    of the environment and the development of energy
    resources.” In fact, as Mr. Morrison testified, the Overlay
    District in the [] Ordinance was drawn to approximately
    follow the outline of the areas identified in the
    Comprehensive Plan future development map as lacking the
    infrastructure to support residential and other development.
    (Board’s C.O.L. at No. 54.)
    Moreover, in Protect PT, this Court explained that
    [t]he purpose of an overlay district is to craft provisions that
    conserve natural resources or realize development
    objectives without unduly disturbing the expectations
    created by the existing zoning district. The MEO District
    meets those objectives by providing for the preservation of
    agricultural operations and development opportunities for
    owners of mineral resources. In creating the MEO District,
    the [t]ownship properly balanced the rights of property
    owners seeking to develop their mineral resources with the
    need to ensure the health, safety and welfare of neighboring
    community members and property owners.
    Furthermore, in the MEO District, 77.9% of the land is
    under oil and gas leases. In [Gorsline v. Board of
    Supervisors of Fairfield Township, 
    186 A.3d 375
     (Pa.
    2018)], our Supreme Court determined that municipalities
    are empowered to permit oil and gas development in any or
    all of its zoning districts. The Gorsline [] Court, rather than
    relegating UNGD solely to industrial zones, instead noted
    that its decision should not be misconstrued as an indication
    that UNGD was fundamentally incompatible with
    agricultural and residential zoning districts.
    Id. at 1195 (emphasis in original).
    Here, we agree with the trial court that the 2017 Amendment does not
    violate the legal concepts of an overlay district.     As explained above in our prior
    analyses, the record demonstrates that the Municipality properly balanced the rights
    of property owners to lease their lands for unconventional gas well drilling with the
    37
    need to protect the environment and to ensure the health, safety, and welfare of the
    neighboring citizens and the Municipality as a whole. Further, akin to the situation in
    Protect PT, here, “[o]f the total leased acreage in the Municipality, 7,000 acres are
    located within the Overlay District, which is 76.8[%] of the Overly District’s land
    mass.” (Board’s F.F. at No. 142.) See Frederick, 196 A.3d at 684 (stating that
    approximately 75% of the land mass in the R-2 district is leased to oil and gas
    operators). However, as in Protect PT, this fact does not prove that the Municipality
    violated the MPC because municipalities are empowered to permit oil and gas
    development in any or all of its zoning districts. It was the MWC’s burden to prove
    incompatibly of uses. However, the MWC failed to establish that unconventional
    drilling is a use that is incompatible with the residential uses permitted in the R
    Districts.
    Accordingly, we find no merit in the MWC’s arguments challenging the
    nature and zoning designations of the Overlay District or the Comprehensive Plan.
    VI. Judicial Estoppel
    The MWC contends that the Municipality is judicially estopped from
    denying that unconventional well drilling is an industrial use that is incompatible with
    residential districts because it advanced this position in its amicus brief in Robinson
    Township.
    Our Supreme Court has described judicial estoppel as “an equitable,
    judicially-created doctrine designed to protect the integrity of the courts by
    preventing litigants from ‘playing fast and loose’ with the judicial system by adopting
    whatever position suits the moment.” Sunbeam Corp. v. Liberty Mutual Insurance
    Co., 
    781 A.2d 1189
    , 1192 (Pa. 2001) (citation omitted). Under the doctrine of
    38
    judicial estoppel, “a party to an action is estopped from assuming a position
    inconsistent with [its] assertion in a previous action, if [its] contention was
    successfully maintained.” Bienert v. Bienert, 
    168 A.3d 248
    , 255 (Pa. Super. 2017)
    (citations omitted).
    We find no merit in the MWC’s argument that judicial estoppel is
    applicable in this case. In Robinson Township, the Supreme Court struck down
    section 3304 of Act 13—a state statute—in overwhelming part because it
    commandeered municipalities, permitting oil and gas operations as a use “of right” in
    every zoning district throughout the Commonwealth, and deprived the municipalities
    of the ability to pick and choose which districts within its realm are suitable for oil
    and gas operations based on “environmental and habitability burdens.” Robinson
    Township, 83 A.3d at 980. Thus, the Municipality’s legal position in that case was
    made in an attempt to rule Act 13 unconstitutional in order to restore its ability, on
    the local level, to create and define zoning districts in general, including those in
    which unconventional oil and gas drilling should be permitted to occur and under
    what conditions. That legal position is markedly different than the Municipality’s
    position in this case, which seeks to uphold the 2017 Amendment and its legislative
    decision to allow unconventional oil and gas drilling in the Overlay District.
    Therefore, we conclude that the Municipality was not judicially estopped with respect
    to the characterization, nature, and/or effect of unconventional drilling or its
    suitability in certain zoning districts within its borders.
    VII. Expert Witness
    The MWC maintains that the Board erred in permitting Gehringer to
    testify as an expert when the Intervenor Olympus, Intervenor landowners, and/or
    39
    HHEX failed to list or otherwise disclose his identity as an expert and/or an expert
    report as required by the Board’s order. The MWC asserts that it was prejudiced
    because it could not discern Gehringer’s methodology prior to the hearings and,
    therefore, its ability to examine his testimony was severely hampered.
    Here, the Board stated in its decision: “It is specifically noted that Mr.
    Gehringer was not called as an expert witness but was called as a fact witness to plot
    existing information that is available in public and other data bases. Mr. Gehringer
    testified with regard to distances from various properties to the edge of the well pad
    and location of the hall route.” (Board’s decision at 1-2.)
    The trial court opined:
    Looking to the factual record, Mr. Gehringer’s testimony
    consisted of viewing maps and pointing out on those maps
    locations relative to one another, including the area of the
    municipality that allows drilling, various well sites and
    storage facilities, the at-issue well site and [Objectors’]
    properties. He noted that all information was publicly
    available and easily obtainable. [The MWC] notes the
    standard for determining expert versus lay testimony as set
    out by the Superior Court as follows: “[T]he proffered
    expert testimony must point to, rely on or cite some
    scientific authority-whether facts, empirical studies, or the
    expert’s own research that the expert has applied to the facts
    at hand and which supports the expert’s ultimate
    conclusion.” Nobles v. Staples, Inc., 
    150 A.3d 110
    , 115
    (Pa. Super. 2016). . . . Mr. Gehringer’s testimony does not
    rise to this level, because he was merely presenting the
    “facts at hand” in this case[,] the mapped locations and
    distances[,] without the addition of any scientific authority
    and reasoning to arrive at an expert opinion.
    [Intervenor] Olympus additionally notes that a computer[-
    ]generated map is “not scientific evidence and therefore the
    test for its admissibility should be whether it accurately
    represents what it purports to represent.” Department of
    Environmental Resources v. Al Hamilton Contracting Co.,
    40
    
    665 A.2d 849
    , 852 (Pa. Cmwlth. 1995). Mr. Gehringer
    merely reiterated the locations and distances on properly
    admitted maps through his testimony, providing factual
    evidence to the trier of fact, the [Board]. As such, the
    [Board] was not in error in accepting Mr. Gehringer’s
    testimony as lay witness testimony for the purpose of
    conducting its substantive validity challenge.
    (Trial court op. at 8-9.)
    In Al Hamilton Contracting Co., a case involving issues in connection
    with a surface mining permit, the Department of Environmental Resources
    (Department), now Department of Environmental Protection, sought to introduce an
    exhibit into evidence that was prepared by a hydrogeologist. Specifically, the exhibit
    “was a composite map of the mine site and the surrounding area created from a
    photocopy of a map [and] also contained several additional markings made by [the
    hydrogeologist] which represented the location of the various discharge areas and
    computer-generated structure contour lines.” 665 A.2d at 850. The administrative
    board concluded that the exhibit did not satisfy the test for the admissibility of
    scientific, expert testimony under Frye v. United States, 
    293 F.2d 1013
     (D.C. Cir.
    1923), finding “that the Department had not introduced any evidence indicating that
    the use of a computer program that converts locations and depths into a topographical
    contour model has gained general acceptance in the field of hydrogeology.” 665
    A.2d at 852. On appeal, this Court determined that the Frye test was inapplicable
    because the exhibit “[was] not scientific evidence and therefore the test for its
    admissibility should [have been] whether it accurately represents what it purports to
    represent.” Id. In other cases, courts have generally held that when a witness creates
    a computer-generated map showing locations and distances and offers testimony with
    regard to that map, the testimony does not constitute expert testimony; thus, the rules
    of evidence pertaining to expert testimony do not apply, and the witness need only
    41
    offer foundational testimony that the map is an accurate depiction in order for the
    map to be admissible. See Albig v. Municipal Authority of Westmoreland County,
    
    502 A.2d 658
    , 665 (Pa. Super. 1985) (“Unofficial maps are admissible as evidence
    when verified by the testimony of a witness who has personal knowledge of their
    accuracy.”); State v. Franklin, 
    843 N.E.2d 1267
    , 1269-71 (Ohio App. 3d 2005)
    (holding that the testimony of a GIS specialist with regard to measurements and
    distances generated from a computer software program did not constitute expert
    testimony requiring expert qualification but, instead, concerned “the knowledge or
    experience possessed by most lay persons”).
    Moreover, even if Gehringer rendered expert testimony, Olympus argues
    that “the [Board] gave [the] MWC’s counsel the opportunity to continue the hearing
    to prepare for cross-examination of Gehringer or to present rebuttal testimony and he
    declined, thus waiving the objection.” (Olympus’ Br. at 37-38.) Olympus adds that
    the Board’s invitation was adequate to alleviate any prejudice because “[t]he purpose
    of an expert report is to provide notice of the expert’s expected testimony. Having
    Gehringer’s actual testimony in hand, with the opportunity to cross-examine him at a
    later date, is far better notice.” (Olympus’ Br. at 39 & n.21.)
    Upon review, we conclude that the Board did not commit prejudicial
    evidentiary error. First, Gehringer did not provide expert testimony because he did
    not issue an expert opinion in the typical sense, e.g., an opinion pertaining to the
    breach of the standard of care or causation, and testified only to factual situations,
    i.e., the distance between geographic points of reference. Second, even if Gehringer
    rendered expert testimony, and the MWC was not placed on sufficient notice of that
    testimony, the Board provided the MWC with the opportunity and time to alleviate
    and cure any such error. However, the MWC declined to take advantage of the
    42
    Board’s offer and cannot now assert that it was prejudiced.       See United States v.
    Harris, 
    498 F.2d 1164
    , 1170 (3d Cir. 1974) (“[The defendant] should have taken this
    course when he learned of the errors, but failed to do so. A defendant may not sit idly
    by in the face of obvious error and later take advantage of a situation which by his
    inaction he has helped to create.”) (internal quotation marks omitted). “To constitute
    reversible error, an evidentiary ruling must not only be erroneous, but also harmful or
    prejudicial to the complaining party.” Commonwealth v. Lopez, 
    57 A.3d 74
    , 81 (Pa.
    Super. 2012). Consequently, we conclude that the MWC is not entitled to relief on its
    assertions of error with regard to the admissibility of Gehringer’s testimony.
    VIII. Adverse Inference
    The MWC contends that it is entitled to an adverse inference because
    Morrison was asked why the Council did not consider the
    Task Force’s recommendation concerning setback distances
    of 1000’ based on public health and their impact on their
    citizens’ rights to clean air and pure water when it reduced
    the setback to 750’. Following an objection by the
    Municipality’s Counsel, [Morrison] was directed to provide
    [] an answer by the [Board], yet he refused to answer.
    Despite the [Board] overruling the objection, [the
    Municipality’s] Counsel took the unusual step of silencing
    the witness contrary to the Board’s ruling, saying “I’m
    directing you not to answer.” Counsel for the [MWC]
    responded, “I would ask for an adverse inference then, that
    the [B]oard has ruled and the witness is not acting
    consistent with the ruling.”
    Here, [] Morrison failed to testify regarding the Council’s
    consideration of key information on whether its reduced
    setback is actually consistent with the public health, safety
    and welfare, but these facts would be well within his
    knowledge as he was called as a witness by [the
    Municipality] to recap the ordinance process and what
    Council did. His unwillingness to testify should be
    43
    understood to [imply] that the [MWC’s] argument that [the
    Municipality] blatantly ignored this information and did not
    consider the public health, safety and welfare in violation of
    its police powers, when minimizing the Task Force’s
    recommended setback from a well site from 1000’ to 750’
    is indeed factually correct, and should further be used to
    discredit any testimony made to the contrary throughout the
    course of [] Morrison’s testimony. . . .
    This inference . . . should be viewed as adverse admissions
    against interest made by [the Municipality], and as proof of
    [its] violation of citizens’ constitutional rights.
    (MWC’s Br. at 48-51) (internal citations omitted).
    A party’s failure to testify can support an adverse inference that
    whatever testimony he would have given would have been unfavorable to him.
    Kennett Square Specialties v. Workers’ Compensation Appeal Board (Cruz), 
    31 A.3d 325
    , 328 (Pa. Cmwlth. 2011). This adverse inference serves to corroborate evidence
    produced by the opposing party. 
    Id.
     An adverse inference, however, does not
    constitute evidence and it cannot alone serve as substantial evidence to support a
    finding of fact. 
    Id. at 328-29
     (emphasis added). Stated differently,
    the inference created when a party refuses to testify is not
    considered evidence established by the party with the
    burden of proof, and therefore does not count in calculating
    whether a party has met its burden in introducing
    substantial evidence. Rather, the inference is directed to the
    credibility of the evidence presented by the party with the
    burden.
    
    Id. at 329
    .
    In addition, as explained in Intervenor Olympus’ brief, “Council’s
    decision to adopt a 750-foot setback instead of the 1,000-foot setback recommended
    by the Task Force” is essentially irrelevant because “[t]he recommendation of an
    advisory body has no binding effect on the governing body.” (Olympus’ Br. at 27.)
    44
    This contention is well taken and finds strong support in the case law. Indeed, “this
    Court previously stated [that] a planning commission is no more than an advisory
    body whose recommendations have no binding effect on the governing body.”
    Atherton Development Co. v. Township of Ferguson, 
    29 A.3d 1197
    , 1213 (Pa.
    Cmwlth. 2011). See Cleaver v. Board of Adjustment of Tredyffrin Township, 
    200 A.2d 408
    , 413 (Pa. 1964) (“The final decision in zoning matters rests in the
    legislative body and not in a planning commission, and a township or borough or
    county or city may adopt or modify or reject any comprehensive or master plan which
    is prepared by a planning commission.”).
    For three reasons, we find that the Board’s alleged failure to draw an
    adverse inference from Morrison’s counseled decision not to explain or otherwise
    discuss the Council’s consideration, or deliberative process, in not following the
    recommendation of the Task Force lacks merit. First, despite the Board’s ruling, the
    sought-after testimony is legally irrelevant and possesses no probative value to the
    legal issues in this case. Second, and alternatively, the MWC did not adduce any
    competent evidence in support of its constitutional and statutory claims, and an
    adverse inference is insufficient to carry its burden of proof on those claims. Third,
    as discussed below, the Council’s state of mind in making the decision has no impact
    on the constitutionality or statutory validity of the 2017 Amendment. Therefore, we
    conclude that even if the Board was obligated, as fact-finder, to draw an adverse
    inference, such an inference would be legally insufficient to carry the MWC’s
    evidentiary burden and establish that the 2017 Amendment was unconstitutional or
    contravened a statute.
    45
    IX. Subpoena
    Citing Council’s duties as trustees under the ERA, the MWC asserts that
    [i]n essence, the trust obligation imposes a burden upon the
    trustee to “show your work” and provide the decision-
    making roadmap. This burden fell squarely upon [the]
    Council to substantiate both how and why its ordinance was
    appropriately protective of the municipality’s [ERA] trust
    obligations and its beneficiaries’ rights. Yet, during the
    hearing, [the] Council was shielded from any inquiry
    relating to their trustee obligation. When [the MWC]
    attempted to subpoena Council members to obtain
    testimony regarding their trustee obligations, these efforts
    were denied.
    (MWC’s Br. at 60-61.)
    Under Pennsylvania law, this Court has “held that the courts have no
    authority to pass upon the motives of a legislative body in enacting a statute or an
    ordinance.” East Lampeter Township v. County of Lancaster, 
    744 A.2d 359
    , 365 n.9
    (Pa. Cmwlth. 2000). Indeed, “members of a legislative body are not subject to
    inquiry incident to any challenge of its legislation so that they may have absolute
    freedom to act in legislative matters for the public welfare, without fear of being
    called on for vindication or explanation, leaving to the courts the function of
    determining whether such acts transgress the fundamental law.” 
    Id.
     (emphasis in
    original; internal citation omitted). Put simply, “the state of mind of the legislative
    body in enacting a zoning ordinance is irrelevant to a determination of its validity;
    rather, the legislation must stand or fall on its own terms.” 
    Id.
     (internal citation
    omitted). Somewhat similarly, a legislative body need not articulate its reasoning at
    the moment a particular decision is made, and a legislative choice may be based on
    rational speculation unsupported by evidence or empirical data. See Adams Outdoor
    Advertising, LP v. Zoning Hearing Board of Smithfield Township, 
    909 A.2d 469
    , 478
    46
    (Pa. Cmwlth. 2006); Corteal v. Department of Transportation, 
    821 A.2d 173
    , 177
    (Pa. Cmwlth. 2003).
    Applying the above case law, we conclude that the Board did not err in
    denying the MWC’s request to subpoena Council members because the proffered
    testimony sought to be obtained was inadmissible and irrelevant to the MWC’s
    constitutional and statutory claims.
    Conclusion
    Given this Court’s decisions in Frederick and Protect PT, the MWC’s
    constitutional and statutory claims necessarily fail.       Notably, as previously
    mentioned, the MWC does not challenge any of the Board’s specific findings of fact
    and, as a result, they are binding on this Court. Further, the only evidence submitted
    by the MWC was entirely speculative in nature. None of Objectors testified; Skeers,
    the President of MWC, simply voiced his position that unconventional gas drilling
    should be in an industrial zoning district, and not a residential district; and Statam
    merely stated that she was worried about the potential effect that the drilling would
    have on her horses and that unidentified, large trucks drive past her house creating
    noise. (F.F. Nos. 86, 101, 117-19.) See Frederick, 196 A.3d at 689 (stating that the
    objectors’ “expressed concerns” consisted of no more than “speculation of possible
    harms[,]” which was “insufficient to show that the proposed natural gas well will be
    detrimental to the health, safety and welfare of the neighborhood”). Although the
    MWC could have introduced expert testimony regarding the adverse effects of
    unconventional oil and gas drilling, or even layperson testimony based on first-hand
    experiences with gas wells, see generally EQT Production Company v. Borough of
    Jefferson Hills, 
    208 A.3d 1010
     (Pa. 2019), it did not. Consequently, the MWC
    47
    essentially advances constitutional challenges to the 2017 Amendment on its face,
    rather than as applied.       However, there is nothing inherently illegal about
    unconventional oil and gas drilling, and this Court has rejected any presumption that
    the activity will have an adverse effect on the environment or the population or that it
    is incompatible with residential zoning districts. Finally, the MWC’s arguments that
    are evidentiary in nature are devoid of merit.
    Accordingly, and for the above-stated reasons, we affirm the trial court’s
    order, which affirmed the Board’s order denying the MWC’s legal challenges to the
    validity of the 2017 Amendment.
    ________________________________
    PATRICIA A. McCULLOUGH, Judge
    Judge Crompton did not participate in this decision.
    48
    IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Murrysville Watch Committee,             :
    Appellant              :
    :
    v.                       :
    :
    Municipality of Murrysville Zoning       :
    Hearing Board and Municipality of        :
    Murrysville                              :
    :    No. 579 C.D. 2020
    v.                       :
    :
    Olympus Energy LLC                       :
    :
    v.                       :
    :
    David and Cindy Gesuale, Douglas         :
    and David Geiger, Barry and Pamela       :
    Paulisick, Free Gospel Church, Inc.,     :
    Doris and Jurgen Ekbert, and Samuel      :
    and Regina Staymates                     :
    ORDER
    AND NOW, this 24th day of January, 2022, the May 13, 2020 order of
    the Court of Common Pleas of Westmoreland County is hereby affirmed.
    ________________________________
    PATRICIA A. McCULLOUGH, Judge