Volunteer Fire Companies of Lower Saucon v. D. Cawley (WCAB) ( 2023 )


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  •           IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Volunteer Fire Companies of                    :
    Lower Saucon,                                  :
    Petitioner                   :
    :
    v.                                :
    :
    David Cawley (Workers’                         :
    Compensation Appeal Board),                    :   No. 12 C.D. 2022
    Respondent                     :   Submitted: December 15, 2022
    BEFORE:      HONORABLE RENÉE COHN JUBELIRER, President Judge
    HONORABLE ANNE E. COVEY, Judge
    HONORABLE LORI A. DUMAS, Judge
    OPINION NOT REPORTED
    MEMORANDUM OPINION BY
    JUDGE COVEY                                                 FILED: January 10, 2023
    Volunteer Fire Companies of Lower Saucon (Employer) petitions this
    Court for review of the Workers’ Compensation (WC) Appeal Board’s (Board)
    December 7, 2021 order affirming the WC Judge’s (WCJ) decision that granted
    David Cawley’s (Claimant) Claim Petition for WC benefits (Claim Petition).
    Employer presents three issues for this Court’s review:1 (1) whether Claimant
    provided timely notice pursuant to Section 311 of the WC Act (Act);2 (2) whether
    Claimant was entitled to the presumption of causation afforded by Section 301(f) of
    the Act;3 and (3) whether Claimant met his burden of proof under Section 108(n) of
    the Act.4 After review, this Court affirms.
    1
    This Court reordered Employer’s issues for clarity of the discussion herein.
    2
    Act of June 2, 1915, P.L. 736, as amended, 77 P.S. § 631.
    3
    Added by Section 2 of the Act of July 7, 2011, P.L. 251, 77 P.S. § 414(f).
    4
    Added by Section 1 of the Act of July 7, 2011, P.L. 251, 77 P.S. § 27.1(n).
    Background
    Claimant was employed as an active volunteer firefighter with
    Employer since 1978. Claimant was also self-employed as a small-scale project
    handyman since 1990. In 2015, Claimant was diagnosed with renal cell (kidney)
    carcinoma and in 2016, he was diagnosed with colon/rectal carcinoma, for which he
    has undergone several surgeries, as well as chemotherapy and radiation.5 Since his
    diagnoses, his duties for Employer have been limited to exterior firefighting and
    driving fire trucks.
    On December 27, 2017, Claimant filed the Claim Petition alleging that
    his two types of cancer are compensable based upon exposure to International
    Agency for Research on Cancer (IARC) Group 1 carcinogens as a volunteer
    firefighter under Section 108(r) of the Act.6 See Reproduced Record (R.R.) at 2a.
    Claimant sought total disability benefits as of November 30, 2015, and payment of
    his medical bills.     Employer filed an Answer to the Claim Petition denying
    Claimant’s allegations. See R.R. at 6a-8a.
    The matter was assigned to a WCJ who conducted a hearing on
    February 12, 2018. See R.R. at 9a-50a. When the hearing commenced, Claimant
    amended the Claim Petition to include occupational injuries under Sections 108(n)
    and 301(c)(1) of the Act, 77 P.S. § 411(1). Claimant testified at the February 12,
    2018 hearing, and again by August 16, 2018 deposition. Claimant also presented
    the December 26, 2017 report of internal medicine, pulmonary medicine and
    occupational medicine specialist Tee L. Guidotti, M.D. (Dr. Guidotti) (see R.R. at
    51a-65a); and the Pennsylvania Fire Information Reporting System (PennFIRS)
    5
    From 1978 to 2014, Claimant underwent approximately 15 mandatory physical
    examinations, and was never diagnosed with cancer.
    6
    Added by Section 1 of the Act of July 7, 2011, P.L. 251, 77 P.S. § 27.1(r).
    2
    summary from 2013 to 2016.7 Employer offered the January 30, 2019 report of
    occupational and environmental medicine specialist Howard Sandler, M.D. (Dr.
    Sandler). See R.R. at 66a-90a. On June 28, 2019, the WCJ granted Claimant’s
    Claim Petition, concluding that Claimant sustained his burden of proving his
    entitlement to benefits pursuant to Sections 108(n), 108(r), 301(c)(2), and 301(f) of
    the Act. Employer appealed to the Board.
    On December 1, 2020, the Board affirmed the WCJ’s grant of the Claim
    Petition, but remanded the case for evidence and findings regarding litigation costs
    and disability dates. On May 7, 2021, the WCJ adopted his original findings of fact
    and conclusions of law, made additional findings regarding Claimant’s litigation
    costs, and stated that the parties agreed Claimant was disabled from November 23,
    2015 through February 4, 2016 due to his kidney cancer, and from September 8,
    2016 through October 3, 2016 due to his colon/rectal cancer. See Employer Br. App.
    B (WCJ Remand Dec.) at 3-4 (R.R. at 195a-196a). Employer appealed to the Board,
    which affirmed the WCJ’s Remand Decision on December 7, 2021. See Employer
    Br. App. A (Board Remand Op.) (R.R. at 206a-215a). Employer appealed to this
    Court.8
    7
    Employer has been reporting to the PennFIRS system since 2005. See R.R. at 41a.
    Employer’s PennFIRS report summary reflects all of Employer’s fire calls. See R.R. at 97a-98a,
    110a-111a, 147a-151a.
    8
    “[This Court’s] review determines whether there has been a violation of constitutional
    rights, whether errors of law have been committed, whether board procedures were violated, or
    whether necessary findings of fact are supported by substantial evidence.” Bryn Mawr
    Landscaping Co. v. Workers’ Comp. Appeal Bd. (Cruz-Tenorio), 
    219 A.3d 1244
    , 1252 n.5 (Pa.
    Cmwlth. 2019).
    On June 28, 2022, this Court denied Employer’s supersedeas application.
    3
    Discussion
    Initially,
    [a]n injured employee seeking to obtain [WC] benefits for
    a work-related injury bears the burden of proving all
    elements necessary to support an award. Pursuant to
    Section 301(c)(1) of the Act, 77 P.S. § 411(1), an
    employee’s injuries are compensable if they (1) arise in
    the course of employment and (2) are causally related
    thereto.
    Amandeo v. Workers’ Comp. Appeal Bd. (Conagra Foods), 
    37 A.3d 72
    , 75 n.4 (Pa.
    Cmwlth. 2012) (citation omitted). Section 301(c)(2) of the Act provides, in relevant
    part: “The terms ‘injury,’ ‘personal injury,’ and ‘injury arising in the course of his
    employment,’ as used in this [A]ct, shall include . . . occupational disease as defined
    in [S]ection 108 of this [A]ct[.]” 77 P.S. § 411(2).
    Section 108 of the Act defines the term “occupational disease” to
    include, inter alia, “[c]ancer suffered by a firefighter[9] which is caused by exposure
    to a known carcinogen [that] is recognized as a Group 1 carcinogen by the [IARC,]”
    77 P.S. § 27.1(r), and “[a]ll other diseases (1) to which [a] claimant is exposed by
    reason of his employment, and (2) which are causally related to the industry or
    occupation, and (3) the incidence of which is substantially greater in that industry or
    occupation than in the general population.” 77 P.S. § 27.1(n).
    Section 301(f) of the Act provides, in relevant part:
    Compensation pursuant to cancer suffered by a firefighter
    shall only be to those firefighters who have served four or
    more years in continuous firefighting duties, who can
    establish direct exposure to a carcinogen referred to in
    [S]ection 108(r) [of the Act] relating to cancer by a
    firefighter and have successfully passed a physical
    examination prior to asserting a claim under this
    subsection or prior to engaging in firefighting duties and
    9
    “Section 301(f) [of the Act] . . . imposes the same general causation requirement on both
    career and voluntary firefighters . . . .” Bristol Borough v. Workers’ Comp. Appeal Bd. (Burnett),
    
    206 A.3d 585
    , 601 (Pa. Cmwlth. 2019) (en banc).
    4
    the examination failed to reveal any evidence of the
    condition of cancer. The presumption . . . may be rebutted
    by substantial competent evidence that shows that the
    firefighter’s cancer was not caused by the occupation of
    firefighting. Any claim made by a member of a volunteer
    fire company shall be based on evidence of direct exposure
    to a carcinogen referred to in [S]ection 108(r) [of the Act]
    as documented by reports filed pursuant to the [PennFIRS]
    and provided that the member’s claim is based on direct
    exposure to a carcinogen referred to in [S]ection 108(r) [of
    the Act].[10]
    77 P.S. § 414.
    Ultimately,
    [t]o provide compensation to injured workers, “a WCJ and
    the Board are authorized by the Act to determine whether
    or not an employee who alleges [the employee] was
    injured during the course of [his] employment is entitled
    to compensation.” Heath v. Workers’ Comp. Appeal Bd.
    (Pa. Bd. of Prob. & Parole), . . . 
    860 A.2d 25
    , 30 ([Pa.]
    2004). In doing so, a WCJ is required to make credibility
    and evidentiary determinations, to make findings as to the
    facts underlying the matter, and to determine whether a
    claimant has met the burden of proving entitlement to
    compensation, and with regard to these findings and
    determinations, “the WCJ is the ultimate finder of fact and
    the exclusive arbiter of credibility and evidentiary
    weight.” Thompson v. Workers’ Comp. Appeal Bd.
    (USF&G Co.), . . . 
    781 A.2d 1146
    , 1150 ([Pa.] 2001).
    Dep’t of Corr. - SCI Chester v. Faison (Workers’ Comp. Appeal Bd.), 
    266 A.3d 714
    ,
    730 (Pa. Cmwlth. 2021).
    Notice
    Employer first argues that the Board erred by affirming the WCJ’s
    conclusion that Claimant timely notified Employer of his work injury.
    10
    The purpose of “the PennFIRS reporting requirement in Section 301(f) [of the Act] is to
    document a volunteer firefighter’s presence at a type of fire where firefighters are routinely
    exposed to Group 1 carcinogens known to cause various types of cancers.” Burnett, 206 A.3d at
    602.
    5
    Section 311 of the Act specifies:
    Unless the employer shall have knowledge of the
    occurrence of the injury, or unless the employe . . . shall
    give notice thereof to the employer within [21] days after
    the injury, no compensation shall be due until such notice
    be given, and, unless such notice be given within [120]
    days after the occurrence of the injury, no compensation
    shall be allowed. However, in cases of injury . . . in which
    . . . its relationship to the employment is not known to the
    employe, the time for giving notice shall not begin to run
    until the employe knows, or by the exercise of reasonable
    diligence should know, of the existence of the injury and
    its possible relationship to his employment. The term
    “injury” in this section means, in cases of occupational
    disease, disability resulting from occupational disease.
    77 P.S. § 631. Thus, “[u]nder the Act, notice is a prerequisite for receiving [WC]
    benefits” for an occupational injury, and this Court has held that “the claimant bears
    the burden of demonstrating that proper notice was given.” City of Pittsburgh v.
    Workers’ Comp. Appeal Bd. (Flaherty), 
    187 A.3d 1061
    , 1066 (Pa. Cmwlth. 2018).
    Employer specifically contends that, with the exercise of reasonable
    diligence, Claimant should have known about the potential causal connection
    between his cancers and his work as a firefighter when he retained his attorney on
    March 6, 2017, but he did not file the Claim Petition until December 27, 2017, and
    there is no substantial competent evidence that Claimant provided notice to
    Employer within 120 days of March 6, 2017.
    In an occupational disease case, the notice period begins
    to run against a claimant when []he has “(1) knowledge or
    constructive knowledge (2) of a disability (3) which exists,
    (4) which results from an occupational disease, and (5)
    which has a possible relationship to h[is]
    employment. . . .” Republic Steel Corp. v. Workmen’s
    Comp[.] Appeal B[d.] (Wojtaszek), . . . 
    413 A.2d 768
    , 770
    ([Pa. Cmwlth.] 1980) (quoting Republic Steel Corp[.] v.
    Workmen’s Comp[.] Appeal B[d.] (Zacek), . . . 
    407 A.2d 117
    , 118 ([Pa. Cmwlth.] 1979)) . . . .
    6
    Flaherty, 187 A.3d at 1067 (emphasis omitted). This Court has observed that the
    General Assembly did not specify in Section 311 of the Act that a physician’s
    confirmation shall trigger the notice period. See E. Hempfield Twp. v. Workers’
    Comp. Appeal Bd. (Stahl), 
    189 A.3d 1114
     (Pa. Cmwlth. 2018). Rather, “[t]he crux
    of the issue relating to notice . . . is not when did [the c]laimant actually know of the
    work-relatedness of his injury, but when [the c]laimant, through the exercise of
    reasonable diligence, should have known the work-relatedness of his injury.” Id. at
    1119-20 (emphasis in original). Importantly, the “discovery rule [in Section 311 of
    the Act] requires more than an employee’s suspicion, intuition or belief.” The Bullen
    Cos. v. Workers’ Comp. Appeal Bd. (Hausmann), 
    960 A.2d 488
    , 493 (Pa. Cmwlth.
    2008). Accordingly, the WCJ “must [] determine[] whether [the c]laimant made a
    reasonable effort to discover the cause of his injury under the facts and circumstances
    present in the case.” Stahl, 189 A.3d at 1120.
    Claimant represented in the Claim Petition that he “provided [] notice
    [to Employer, on December 1, 2015,] that both cancers were potentially due to his
    fire service within one week of being diagnosed. He [] filed this [Claim P]etition on
    the same day that notice was provided that the cancers were due to his volunteer
    service by a physician.” R.R. at 2a-3a. In its Answer, Employer denied knowledge
    of Claimant’s notice. See R.R. at 6a.
    Claimant testified at the February 12, 2018 WCJ hearing:
    Q. [Claimant’s Counsel] . . . And after being diagnosed
    with renal cell cancer did you contact [Employer]
    regarding the relationship between that cancer and your
    service?
    A. [Claimant] Well, they actually contacted me, I mean.
    Q. Who contacted you?
    A. Our relief association president.
    7
    Q. Who was that?
    A. Bill Chesler.
    ....
    Q. And as a result of that did you notify [Employer] that
    you believe the cancer was work-related?
    A. Correct.
    Q. And was that December of 2015?
    A. Correct.
    Q. Now, for the rectal cancer do you recall if you contacted
    anybody from the volunteer fire company or township
    about that?
    A. I don’t really remember. I’m not sure. There was a lot
    going on. I’m not sure.
    Q. When you notified [Employer] or when [Employer]
    notified you about the relationship between the cancer, the
    renal cell cancer, and your fire service[, a]t that point had
    any doctor told you or given you a note expressing that the
    cancer was due to your fire service?
    A. No.
    Q. Even as we sit here today for both renal cell and the
    rectal cancer is the only report that you’ve ever seen
    relating the two cancers from a Dr. Guidotti . . . ?
    A. Yes, that was the only guy.
    R.R. at 37a-38a; see also R.R. at 124a-125a. Claimant denied any knowledge of the
    IARC or its chemical carcinogenicity list prior to reviewing Dr. Guidotti’s report.
    See R.R. at 39a. Employer did not offer any contradictory evidence.
    As “the exclusive arbiter of credibility and evidentiary weight[,]”
    Faison, 266 A.3d at 730 (quoting 
    Thompson, 781
     A.2d at 1150), “the WCJ may
    reject or accept the testimony of any witness.” Faison, 266 A.3d at 736. Here, the
    WCJ found: “[Claimant] notified [Employer] that he thought the renal cell cancer
    8
    was work related in December of 2015. He is not sure about the rectal cancer. The
    only communication he has seen from any doctor relating his cancer to his work as
    a volunteer fireman is the report of Dr. Guidotti.” WCJ Dec. at 4 (R.R. at 155a).
    The WCJ also found: “The testimony of the Claimant is uncontradicted and credible
    in its entirety.” WCJ Dec. at 7 (R.R. at 158a). Accordingly, the WCJ concluded:
    Claimant has provided timely notice of his claims pursuant
    to Section 311 of the Act. He advised [Employer] of the
    potential relationship as soon as he was diagnosed. . . .
    [H]e never received medical notice of the relationship
    between fire service and cancers until receiving Dr.
    Guidotti’s December 26, 2017 report.
    WCJ Dec. at 8 (R.R. at 159a).
    On appeal, neither the Board nor this Court may reweigh the evidence
    or the WCJ’s credibility determinations,11 see Sell v. Workers’ Comp. Appeal Bd.
    (LNP Eng’g), 
    771 A.2d 1246
     (Pa. 2001), and “[t]he WCJ’s findings will not be
    disturbed if they are supported by substantial, competent evidence.” Rogele, Inc. v.
    Workers’ Comp. Appeal Bd. (Hall), 
    198 A.3d 1195
    , 1204 (Pa. Cmwlth. 2018)
    (quoting Stepp v. Worker’s Comp. Appeal Bd. (FairPoint Commc’ns, Inc.), 
    99 A.3d 598
    , 601 n.6 (Pa. Cmwlth. 2014)). “Substantial evidence . . . [i]s such relevant
    evidence as a reasonable mind might accept as adequate to support a conclusion.”
    Aqua Am., Inc. v. Workers’ Comp. Appeal Bd. (Jeffers), 
    199 A.3d 482
    , 486 (Pa.
    11
    Specifically, “Section 422(a) [of the Act, 77 P.S. § 834,] does not permit a party to
    challenge or second-guess the WCJ’s reasons for credibility determinations. [Thus, u]nless made
    arbitrarily or capriciously, a WCJ’s credibility determinations will be upheld on appeal.” Pa.
    Uninsured Emps. Guar. Fund v. Workers’ Comp. Appeal Bd. (Lyle), 
    91 A.3d 297
    , 303 (Pa.
    Cmwlth. 2014) (quoting Dorsey v. Workers’ Comp. Appeal Bd. (Crossing Constr. Co.), 
    893 A.2d 191
    , 195 (Pa. Cmwlth. 2006) (citation omitted)); see also Burnett, 206 A.3d at 611 (this Court is
    “bound by the WCJ’s credibility determinations”). Capricious disregard “occurs only when the
    fact-finder deliberately ignores relevant, competent evidence.” Williams v. Workers’ Comp.
    Appeal Bd. (USX Corp.-Fairless Works), 
    862 A.2d 137
    , 145 (Pa. Cmwlth. 2004). Capricious
    disregard, by definition, does not exist where, as here, the WCJ expressly considered and rejected
    evidence. See 
    id.
    9
    Cmwlth. 2018) (quoting Gibson v. Workers’ Comp. Appeal Bd. (Armco Stainless &
    Alloy Prods.), 
    861 A.2d 938
    , 943 (Pa. 2004)).
    In reviewing the WCJ’s credibility and evidentiary
    determinations, “[i]t is irrelevant whether the record
    contains evidence to support findings other than those
    made by the WCJ; the critical inquiry is whether there is
    evidence to support the findings actually made.” Furnari
    v. Workers’ Comp. Appeal Bd. (Temple Inland), 
    90 A.3d 53
    , 60 (Pa. Cmwlth. 2014) (citation omitted). Thus, this
    Court’s authority in these matters is limited to reviewing
    the entire record to see if it contains evidence that a
    reasonable person might find sufficient to support the
    WCJ’s findings. 
    Id.
     If the record contains such evidence,
    the findings must be upheld, even though the record may
    contain conflicting evidence. 
    Id.
    Faison, 266 A.3d at 736.
    Moreover,
    [w]hen “performing a substantial evidence analysis, this
    Court must view the evidence in a light most favorable to
    the party who prevailed before the fact-finder.” WAWA v.
    Workers’ Comp[.] Appeal [Bd.] (Seltzer), 
    951 A.2d 405
    ,
    408 (Pa. Cmwlth. 2008). Further, when determining
    whether substantial evidence exists to support a finding of
    fact, this Court must give to the party in whose favor the
    appealed decision was decided “the benefit of all
    inferences that can logically and reasonably be drawn
    from the evidence.” B.J.K. v. Dep[’t] of Pub[.] Welfare,
    
    773 A.2d 1271
    , 1276 (Pa. Cmwlth. 2001).
    Obimak Enter. v. Dep’t of Health, 
    200 A.3d 119
    , 126 (Pa. Cmwlth. 2018).
    Here, because substantial evidence clearly supported the WCJ’s
    conclusion that Claimant timely notified Employer in accordance with Section 311
    of the Act, the Board properly affirmed the WCJ’s decision.
    10
    Presumption
    Employer also asserts that the Board erred by affirming the WCJ’s
    conclusion that Claimant was entitled to the presumption of causation afforded by
    Section 301(f) of the Act. Specifically, Employer claims that the WCJ erroneously
    granted the Claim Petition based on Employer’s purported failure to offer expert
    medical evidence to rebut the presumption of causation under Section 301(f) of the
    Act when Employer produced an expert’s opinion disputing general causation, so
    the burden of proof should have returned to Claimant to prove causation by a
    preponderance of the evidence. Employer further interprets that the burden-shifting
    framework does not require its medical opinion to first be found credible to rebut the
    presumption of causation.
    [T]o establish an evidentiary presumption of entitlement
    to compensation in accordance with [S]ection 301(f) [of
    the Act], the claimant must establish that he or she
    (1) served four or more years in continuous
    firefighting duties;
    (2) had direct exposure to a Group 1 carcinogen;
    and
    (3) passed a physical examination prior to
    asserting a claim or prior to engaging in
    firefighting duties (and the examination failed to
    reveal any evidence of cancer).
    77 P.S. § 414. Finally, if the claimant succeeds in
    demonstrating an occupational disease and an entitlement
    to the evidentiary presumption of compensability, then the
    burden of proof shifts to the employer, who must offer
    “substantial competent evidence that shows that the
    firefighter’s cancer was not caused by the occupation of
    firefighting.” Id.
    City of Phila. Fire Dep’t v. Workers’ Comp. Appeal Bd. (Sladek), 
    195 A.3d 197
    , 207
    (Pa. 2018) (footnote omitted).
    11
    Here, the parties agree that Claimant “served four or more years in
    continuous firefighting duties[,]” and “successfully passed a physical examination
    prior to asserting a claim . . . and the examination failed to reveal any evidence of
    the condition of cancer.”12       77 P.S. § 414; see also R.R. at 16a-17a.             Their
    disagreement is over whether Claimant “establish[ed] direct exposure to a
    carcinogen referred to in [S]ection 108(r) [of the Act] relating to cancer by a
    firefighter[.]” Id.
    The express language of Section 108(r) [of the Act],
    namely that the claimant has a “cancer . . . which is caused
    by exposure to a known (Group 1) carcinogen” clearly
    imposes an initial burden of causation on the claimant.
    Importantly, however, the provision only requires the
    claimant to establish a general causative link between
    the claimant’s type of cancer and a Group 1
    carcinogen. In other words, the claimant must produce
    evidence that it is possible that the carcinogen in question
    caused the type of cancer with which the claimant is
    afflicted. It does not require the claimant to prove that the
    identified Group 1 carcinogen actually caused claimant’s
    cancer. Section 108(r) [of the Act] embodies a legislative
    acknowledgement that firefighting is a dangerous
    occupation that routinely exposes firefighters to Group 1
    carcinogens that are known to cause various types of
    cancers. The “general causation” requirement under
    Section 108(r) [of the Act] constitutes a recognition that
    different types of cancers have different etiologies and it
    weeds out claims for compensation for cancers with no
    known link to Group 1 carcinogens. The burden imposed
    by Section 108(r) [of the Act] is not a heavy burden.
    Sladek, 195 A.3d at 208 (bold and italic emphasis added; footnote omitted).
    Notably, Section 301(f) [of the Act] does not require []
    firefighters to identify and document the carcinogens
    encountered at every incident. Rather, a [] firefighter
    may establish direct exposure to a Group 1 carcinogen
    12
    Claimant’s last firefighter physical before his cancer diagnoses occurred on December
    30, 2014. See R.R. at 96a, 139a-146a.
    12
    by evidence of his occupational exposure to fire smoke,
    soot, diesel exhaust, and other hazardous substances
    such as asbestos, and expert medical/scientific evidence
    identifying the Group 1 carcinogens present in those
    substances. See, e.g., Caffey v. Workers’ Comp. Appeal
    Bd. (City of Phila[.]), 
    185 A.3d 437
     (Pa. Cmwlth. 2018)
    (career firefighter’s testimony of occupational exposure to
    fire smoke, soot and diesel exhaust, combined with expert
    medical testimony as to causal relationship between
    bladder cancer and firefighting exposures to these
    substances, could support an award of medical benefits
    under Sections 108(r) and 301(f) of the Act).
    Bristol Borough v. Workers’ Comp. Appeal Bd. (Burnett), 
    206 A.3d 585
    , 602 (Pa.
    Cmwlth. 2019) (en banc) (emphasis added).
    Here, Claimant testified that he has always worked at the same
    firehouse, which operates three diesel-powered vehicles, and it does not have a diesel
    fuel emissions capture system. See R.R. at 17a-18a. He could see and smell diesel
    fuel emissions on every fire call for approximately five to eight minutes before the
    trucks pulled out of the firehouse, during which time he was not wearing breathing
    protection. See 
    id.
     He was also exposed while the trucks are running at every fire
    scene. See R.R. at 26a. Claimant recalled that the firehouse apparatus door, walls,
    and ceiling were covered in diesel fuel soot, which he periodically participated in
    cleaning without being given personal protective equipment. See R.R. at 19a.
    Claimant described that he fought at least 1,000 interior and exterior
    fires over the years, including house, car, trash, brush, and warehouse fires.13 See
    R.R. at 19a-22a. Claimant presented Employer’s pre-PennFIRS and PennFIRS
    reports reflecting his firefighting since 1979. He stated that he participated in all
    firefighting stages, including: the attack phase (entry, search, rescue, ventilation and
    13
    Claimant estimated the number of his fire calls by reviewing Employer’s fire reports
    since 1979. See R.R. at 41a, 96a-97a.
    13
    suppression), the overhaul phase,14 the salvage phase, and the fire investigation
    phase, all of which exposed him to soot and smoke. See R.R. at 21a-22a. Claimant
    explained that, although firefighters now use self-contained breathing apparatuses
    (SCBAs)15 for all types of fires and phases, for the first 20 years or so of his service,
    SCBAs were not used for exterior fires, car fires, overhaul, or salvage. See R.R. at
    23a-24a.
    Claimant stated that, although he wore bunker gear (pants, boots, coat,
    Nomex hood, helmet, and gloves) during the active phases of fighting fires, the gear
    was not 100% sealed, so he was exposed to soot and smoke even with it on, and also
    when he removed the equipment for overhaul and salvation, which further exposed
    him to ash and building material debris. See R.R. at 24a-27a. He was also exposed
    to all of those materials when he cleaned his bunker gear and the firefighting
    equipment after each fire. See R.R. at 25a. Claimant stated that, as a handyman, he
    was not exposed to the types of hazardous materials he encountered when
    firefighting. See R.R. at 27a-28a.
    Claimant recalled that for the five years before starting his handyman
    business, he was employed as a laborer at American Olean Tile, which manufactured
    clay quarry tile. See R.R. at 28a-29a. He declared that he was not exposed to clay
    dust in that job. See R.R. at 29a. Claimant recollected that he worked as an auto
    mechanic at TD Automotive for approximately one and one-half years before going
    to work for American Olean Tile, but he did not perform diesel mechanic work in
    that job. See 
    id.
    14
    Claimant described: “Overhaul is when you’re going in and pulling down the walls
    looking for hot spots, mopping up, . . . tearing ceiling[s] down, moving stuff, cleaning up.” R.R.
    at 23a.
    15
    SCBAs provide firefighters with fresh, clean air for approximately 30-45 minutes. See
    R.R. at 22a.
    14
    Claimant asserted that he has no family history of renal or rectal cancer,
    although his father had esophageal cancer. See R.R. at 35a. He testified that he did
    not live in a house with smokers, and his wife does not smoke. See R.R. at 36a.
    Although he is not a smoker, he admitted to smoking a cigar on rare occasions. See
    R.R. at 35a. He recalled that firefighters were permitted to smoke in the firehouse.
    See R.R. at 36a. Claimant reported that he is currently doing well, and undergoes
    regular cancer checks and scans.          The WCJ found Claimant’s testimony
    “uncontradicted and credible in its entirety.” WCJ Dec. at 7 (R.R. at 158a).
    The WCJ made the following findings which are based on statements
    contained in Dr. Guidotti’s report:
    [3.]f. Dr. Guidotti reported that firefighters are exposed to
    chemical hazards with known and suspected carcinogens.
    Skin absorption can be significant for chemical hazards.
    Most toxic chemical exposures in fire[]fighting come
    through general combustion involving not just wood and
    paper but synthetic materials producing other toxic
    chemical products. These include polycyclic aromatic
    hydrocarbons, some of which are known carcinogens,
    volatile organic compounds, including benzyne
    carcinogen and nitroarenes. Fine particulate matter is
    produced by fire and diesel exhaust. Other hazardous
    materials, such as asbestos and polychlorinated biphenyl
    compounds may be encountered. Halogenated flame
    retardants are a new class of chemical hazard.
    g. Dr. Guidotti opined that both colon and rectal cancers
    are more common among firefighters. He opined that
    multiple studies established that kidney cancer is
    associated with firefighting. Similarly, multiple studies
    relate colon and rectal cancer to be elevated among
    firefighters with a consistent association to firefighting.
    h. [Dr. Guidotti] opined that firefighters are exposed to
    several IARC Group [1] carcinogens that cause kidney,
    colon[,] and rectal cancers including chlorinated
    hydrocarbons, tetrachloroethylene [(IARC Group 1),] and
    trichloroethylene.
    15
    i. [Dr. Guidotti] opined that [] Claimant did not have the
    other risk factors of obesity, smoking[,] and diabetes. He
    did not abuse alcohol, did not have inflammatory bowel
    disease and did not have an extreme diet.
    j. Consequently, [Dr. Guidotti] opined that [] Claimant
    developed his cancers as a consequence of exposure to
    IARC [Group 1] chemical carcinogens encountered in the
    course of his work as a firefighter.
    WCJ Dec. at 6-7 (R.R. at 157a-158a).
    The WCJ made the following findings based on statements included in
    Dr. Sandler’s report:
    [4.]b. Basing his opinion on the PennFIRS reports [Dr.
    Sandler] reported that there was no specific carcinogen
    exposure.
    c. [Dr. Sandler] opined that the epidemiological evidence
    does not support a causal association between
    fire[]fighting and kidney cancer.
    d. [Dr. Sandler] disputed studies and data that establish an
    increase in colon and rectal cancer within the fire service.
    He pointed to data which in his opinion demonstrated no
    relationship.
    e. [Dr. Sandler] admitted that firefighters may be exposed
    to IARC Group [1] carcinogens and recognized that
    firefighters are exposed to benzene, butadiene, and
    halogenated hydrocarbons.
    f. Although [Dr. Sandler] does not directly challenge the
    opinion that kidney cancer and colon/rectal cancer can be
    caused by exposure to IARC Group [1] carcinogens, he
    opines there is not sufficient evidence of dose and
    exposure. He drew no conclusion from [] Claimant’s long
    period of fire service from 1978 to 2012.
    g. [Dr. Sandler] opined that Claimant’s cancers were not
    the result of occupational exposure, but he did not attempt
    to explain the cause of [] Claimant’s cancer[s].
    WCJ Dec. at 7 (R.R. at 158a).
    16
    The WCJ found:
    The opinions of Dr. Guidotti are persuasive and more
    credible than Dr. Sandler’s opinions to the contrary. [This
    WCJ] note[s] Dr. Guidotti’s broad experience in the field
    and his recognition of [] Claimant’s various potential risk
    factors beyond firefighting. Moreover, he noted the length
    of [] Claimant’s career in considering exposures. Dr.
    Sandler’s less persuasive opinions are hindered by his
    failure to appropriately consider [] Claimant’s 39 years of
    firefighting.
    WCJ Dec. at 8 (R.R. at 159a). Accordingly, the WCJ found that “Claimant’s renal
    cell and rectal cancer are the types of cancer possibly caused by IARC Group 1
    carcinogens[,]” and that “Claimant has established entitlement to the rebuttable
    presumption of Section 301(f) of the Act.” 
    Id.
     The WCJ concluded that “Claimant
    has proven through substantial, competent[,] and expert evidence herein found
    credible, his entitlement to compensation for renal cell and colon/rectal cancer[,]”
    and Employer “has failed to offer expert medical evidence, herein found credible, to
    rebut the presumption.” 
    Id.
    Notably, Dr. Sandler did not contest Dr. Guidotti’s opinions, based on
    the totality of research data that IARC Group 1 carcinogens may cause renal and
    rectal cancers in firefighters due to their work environment. Dr. Guidotti reviewed
    numerous studies that have demonstrated a link between firefighting and elevated
    risks of kidney cancer. In one study, which Dr. Guidotti described as “the largest
    and best-conducted study to date,” R.R. at 57a, reflected a strong association
    between firefighting and kidney cancer that “was statistically significantly elevated
    for firefighters with at least 20 years [of] service[.]” R.R. at 56a.
    Dr. Guidotti acknowledged that, although a person’s lifestyle (i.e., diet,
    activity, obesity, etc.) is a risk factor for colon/rectal cancer, “[o]verall, the weight
    of evidence suggests that colon and rectal cancer incidence are elevated among
    17
    firefighters and that there is a consistent association with occupation as a firefighter.”
    R.R. at 59a. He described:
    [T]here are three well-known and proven mechanism[s]
    for carcinogens in fire smoke to reach the colon and rectal
    to cause cancer: 1) deposition in the lung or deposition on
    skin (involving smaller amounts) followed by entry into
    the circulation and exposure of tissue to the carcinogens in
    blood[;] 2) oral ingestion which occurs when, for example,
    a firefighter licks his lips in the heat[;] and 3) deposition
    in the lung followed by ingestion of particles brought back
    up to the mouth and swallowed. There is not sufficient
    scientific evidence to know which is most important but[,]
    in my opinion[,] the mucociliary escalator is probably the
    major mechanism for colon and rectal cancer risk.
    R.R. at 60a. Based on the foregoing, we agree with the WCJ that Claimant was
    entitled to the presumption under Section 301(f) of the Act because he “produce[d]
    evidence that it is possible that [an IARC Group 1 carcinogen] caused the type of
    cancer[s] with which [he was] afflicted.” Sladek, 195 A.3d at 208 (emphasis in
    original).
    The Pennsylvania Supreme Court has explained:
    To reach the stage of the proceedings at which the
    employer attempts to rebut the presumption of
    employment-related causation, the claimant has already
    carried his or her Section 108(r) [of the Act] burden of
    proof that his or her cancer is of a type that may be caused
    by a Group 1 carcinogen. The employer may not rebut the
    evidentiary presumption merely by revisiting this
    determination and challenging its accuracy. At the
    rebuttal stage, the issue relates not to “types of cancer”
    relative to potential carcinogens, but rather requires proof
    [] that the cancer from which the claimant suffers was
    not caused by his occupation as a firefighter.[16]
    Sladek, 195 A.3d at 210 (emphasis added).
    16
    Employer argues that the WCJ erroneously “placed the burden on Employer to prove a
    negative, i.e.[,] that Claimant’s cancer[s] [were] not caused by his firefighting activities . . . .”
    Employer Br. at 27. However, that is precisely what the law requires. See Sladek.
    18
    [T]he language of Section 301(f) [of the Act] plainly . . .
    requires the employer to sustain its burden of proof by
    demonstrating (1) the specific causative agent of [the]
    claimant’s cancer, and (2) exposure to that causative
    agent did not occur as a result of his or her employment
    as a firefighter.
    Id. at 209 (emphasis added).           “When evidence is introduced that rebuts the
    presumption, [the presumption] disappears.” Burnett, 206 A.3d at 607. However,
    an employer’s expert evidence that is not found credible or persuasive cannot rebut
    the presumption. See id.; see also City of Phila. v. Est. of Burke (Workers’ Comp.
    Appeal Bd.) (Pa. Cmwlth. No. 1215 C.D. 2020, filed July 30, 2021).17
    Employer presented Dr. Sandler’s report to rebut the presumption in
    Claimant’s favor. Based upon the PennFIRS summary, Dr. Sandler estimated that
    Claimant would only have reported to approximately 50 structure fires during the
    span of his employment. See R.R. at 69a-70a. Dr. Sandler reviewed studies and
    determined that “the alleged volunteer structural/building firefighting as performed
    by [Claimant] over a limited time frame and frequency of response does not meet
    either the general causation or individual causation criteria required for establishing
    a causal nexus for his renal cell carcinoma and colorectal carcinoma.” R.R. at 77a.
    Dr. Sandler declared:
    There is no evidence to support a conclusion that exposure
    to arsenic, asbestos, benzene, benzo[a]pyrene, diesel
    exhaust,     formaldehyde,       trichloroethylene     and
    tetrachloroethylene and soot as a firefighter were
    substantial causal or contributing factors in the
    development of [Claimant’s] renal cell carcinoma and
    colorectal carcinoma. . . . [I]t is not scientifically
    17
    On August 30, 2021, the City of Philadelphia filed a Petition for Allowance of Appeal,
    which the Pennsylvania Supreme Court denied on February 8, 2022.
    This Court’s unreported memorandum opinions may be cited “for [their] persuasive value,
    but not as a binding precedent.” Section 414(a) of the Commonwealth Court’s Internal Operating
    Procedures, 
    210 Pa. Code § 69.414
    (a). Estate of Burke is cited for its persuasive value.
    19
    demonstrated using appropriate causal determination
    methodology that any of the above potential exposures as
    a firefighter leads to the development of renal cell
    carcinoma and rectal carcinoma much less to the
    extremely limited exposure documented in this matter.
    R.R. at 78a.
    Dr. Sandler offered that Claimant’s cancers “[were] most likely caused
    by his underlying personal risk factors . . . including genetic propensity, essential
    hypertension and other potential personal etiologic risk factors such as analgesic
    medication.” R.R. at 78a. He noted Claimant’s father’s cancer history and “a family
    mesothelioma [] reported in the medical reports.” R.R. at 69a. Dr. Sandler further
    stated:
    One of the strongest risk factors for the development of
    kidney cancer is the presence of hypertension . . . .
    [Claimant] has suffered from hypertension for many years
    prior to the clinical development of his bilateral kidney
    cancer. Analgesia use has also been identified as a kidney
    cancer risk factor including a recent meta-analysis of the
    epidemiological evidence . . . . It is not known at present
    what[,] and if so the degree of[,] analgesic medication
    [Claimant] may have used for his various painful
    comorbidities . . . .
    
    Id.
     Employer claims that Dr. Sandler “provided a specific, non-firefighting related
    cause of Claimant’s cancer[s that] was sufficient as a matter of law under Sladek to
    rebut the statutory presumption.” Employer Br. at 27. However, the WCJ disagreed.
    Dr. Guidotti observed regarding Claimant’s genetic history:
    It is well known that people who have had one cancer are
    at higher risk for a second cancer at another site.
    Synchronous or metachronous cancers (where two or more
    occur at about the same time) are uncommon and usually
    occur by a different mechanism, either because the person
    has a defect in the ability to stop cancer once it is initiated
    or because the person has been exposed to chemicals that
    cause cancer in two different organs.
    20
    The presence of two (or more) cancers in one individual
    sometimes indicates a genetic association of the cancer
    (most commonly Lynch syndrome, which [Claimant] does
    not have - it was ruled out by the DNA test). This
    association, however, is almost always a genetic defect in
    the repair of DNA following damage. Gene repair defects
    therefore are conditions in which the person is more
    susceptible to chemical causes of cancer, a situation
    variously described as a “thin skull” or “eggshell”
    condition. Thus, the presence of a known or suspected
    gene-repair defect does not rule out an occupational cause
    for cancer in a firefighter. It strongly suggests that the
    cancer is more likely to be work-related, not less likely.
    But for the exposure, the cancers would be unlikely to
    initiate in the first place and but for the gene-defect the
    cancer would be unlikely to progress to a clinical cancer.
    R.R. at 61a.
    Dr. Guidotti further declared:
    [A] genetic predisposition to cancer in this context almost
    always means that the person inherited a condition in
    which the body lacks the ability to stop a cancer - it does
    not necessarily mean that the genetic condition caused the
    cancer. A genetic defect in stopping cancer makes it much
    more likely that a person exposed to carcinogenic
    chemicals, such as a firefighter, will develop cancer after
    exposure. It does not mean that the genetic defect caused
    the cancer in the first place.
    R.R. at 54a.
    Dr. Guidotti also acknowledged that Claimant had “a history of
    essential hypertension prior to his kidney cancer[,]” but explained that the
    “association between hypertension and risk of kidney cancer appears to be related to
    obesity, which was not a factor in [Claimant’s] case[,]” “the risk conferred by
    hypertension . . . is . . . less than the risk associated with firefighting, which can range
    much higher[,]” and “[h]ypertension is not associated with rectal cancer.” R.R. at
    61a.   The WCJ clearly considered and rejected Dr. Sandler’s testimony that
    conflicted with Dr. Guidotti’s, which the WCJ was authorized to do.
    21
    Because the WCJ’s credibility determinations were not made arbitrarily
    and capriciously and his findings were supported by substantial evidence, this Court
    may not disturb them on appeal. See Sell; see also Rogele, Inc. Based on the expert
    evidence the WCJ found credible, Employer failed to rebut the presumption by
    “pro[ving] [] that the cancer[s] from which [] [C]laimant suffer[ed] was not caused
    by his occupation as a firefighter.” Sladek, 195 A.3d at 210. Accordingly, the Board
    properly affirmed the WCJ’s conclusion that Claimant was entitled to the
    presumption of causation afforded by Section 301(f) of the Act.
    Section 108(n) of the Act
    Lastly, Employer asserts that the Board erred by affirming the WCJ’s
    conclusion that Claimant met his burden of proof under Section 108(n) of the Act.
    In particular, Employer contends that, despite the statutory requirement, the WCJ
    rendered no findings and Claimant offered no evidence showing there is a greater
    incidence of kidney or rectal cancers within the firefighting occupation than in the
    general population.
    To prove his entitlement to WC benefits under the catch-all provision
    in Section 108(n) of the Act, Claimant had to show that his cancers resulted from his
    exposure by reason of his firefighting, that the cancers were causally related to his
    firefighting, and that the incidence of such cancers “is substantially greater in that
    industry or occupation than in the general population.” 77 P.S. § 27.1(n).
    The WCJ specified in Finding of Fact 3.g., which was supported by
    substantial record evidence that the WCJ deemed credible: “Dr. Guidotti opined that
    both colon and rectal cancers are more common among firefighters. He opined that
    multiple studies established that kidney cancer is associated with firefighting.
    Similarly, multiple studies relate colon and rectal cancer to be elevated among
    firefighters with a consistent association to firefighting.” WCJ Dec. at 6 (R.R. at
    22
    157a). Because the WCJ made a finding of fact based on substantial evidence that
    he found credible, the Board properly affirmed the WCJ’s conclusion that Claimant
    met his burden of proof under Section 108(n) of the Act.
    Conclusion
    After a careful review of the record in this matter, th[is]
    Court concludes that the WCJ’s findings of fact are
    supported by substantial evidence of record, including[,]
    inter alia[,] the credited testimony from Claimant and his
    medical witness, Dr. [Guidotti], which establishes the
    causal connection between Claimant’s disease and his
    employment. Moreover, th[is] Court determines that
    Claimant satisfied statutory notice requirements and that
    the evidence, when viewed in a light most favorable to the
    prevailing party, supports the conclusion that Claimant
    met his burden to prove that he suffered a compensable
    occupational [] disease caused by his . . . employment with
    Employer.
    The Bullen Cos., 
    960 A.2d at 494
    . Accordingly, the Board’s order is affirmed.
    _________________________________
    ANNE E. COVEY, Judge
    23
    IN THE COMMONWEALTH COURT OF PENNSYLVANIA
    Volunteer Fire Companies of           :
    Lower Saucon,                         :
    Petitioner          :
    :
    v.                        :
    :
    David Cawley (Workers’                :
    Compensation Appeal Board),           :   No. 12 C.D. 2022
    Respondent            :
    ORDER
    AND NOW, this 10th day of January, 2023, the Workers’
    Compensation Appeal Board’s December 7, 2021 order is affirmed.
    _________________________________
    ANNE E. COVEY, Judge