Aguirre v. goodyear/copperpoint , 245 Ariz. 587 ( 2018 )


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  •                                IN THE
    ARIZONA COURT OF APPEALS
    DIVISION ONE
    GILBERT AGUIRRE JR., Petitioner,
    v.
    THE INDUSTRIAL COMMISSION OF ARIZONA, Respondent,
    CITY OF GOODYEAR, Respondent Employer,
    COPPERPOINT AMERICAN INSURANCE COMPANY, Respondent
    Carrier.
    No. 1 CA-IC 17-0017
    FILED 12-4-2018
    Special Action - Industrial Commission
    ICA Claim No. 20152-040228
    Carrier Claim No. 15A00579
    Honorable Robert F. Retzer, Administrative Law Judge
    AWARD SET ASIDE
    COUNSEL
    Taylor & Associates, PLLC, Phoenix
    By Thomas C. Whitley, Nicholas C. Whitley
    Counsel for Petitioner
    Industrial Commission of Arizona, Phoenix
    By Gaetano J. Testini
    Counsel for Respondent, ICA
    CopperPoint American Insurance Company, Phoenix
    By Mark A. Kendall, Sharon M. Hensley
    Counsel for Respondents Employer and Carrier
    Toby Zimbalist, Phoenix
    Counsel for Professional Firefighters of Arizona, Amicus Curiae
    OPINION
    Presiding Judge Michael J. Brown delivered the opinion of the Court, in
    which Judge Jennifer B. Campbell and Judge Patricia A. Orozco1 joined.
    B R O W N, Judge:
    ¶1            Gilbert Aguirre Jr. seeks review of an Industrial Commission
    of Arizona (“ICA”) award concluding he failed to prove he sustained a
    work-related injury. He argues the administrative law judge (“ALJ”) failed
    to comply with Post v. Industrial Commission, 
    160 Ariz. 4
    (1989), which
    requires an ALJ to make findings that are specific enough to enable proper
    judicial review of the award. Because we cannot properly review the award
    on this record, we set aside the award.
    BACKGROUND
    ¶2            Aguirre, a firefighter for the City of Goodyear (“Goodyear”),
    received a blood test for his annual employment physical in May 2015. His
    test results were abnormal and soon thereafter he was diagnosed with
    chronic myeloid leukemia (“CML”).               Aguirre filed a workers’
    compensation claim, which was denied by the respondent carrier,
    CopperPoint American Insurance Company (“CopperPoint”).2 Aguirre
    timely requested an ICA hearing, and the ALJ held hearings where Aguirre
    and two physicians testified.
    1     The Honorable Patricia A. Orozco, retired Judge of the Arizona
    Court of Appeals, Division One, has been authorized to sit in this matter
    pursuant to Article VI, Section 3, of the Arizona Constitution.
    2       Unless otherwise noted, we refer to Goodyear and CopperPoint
    collectively as “CopperPoint.”
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    ¶3             Aguirre testified that in August 2000 he started working as a
    firefighter in Sierra Vista, and as part of his job duties he responded to both
    structural and wildland fires. In August 2007, Goodyear hired Aguirre as
    a firefighter.
    ¶4             Following his CML diagnosis, Aguirre obtained his Goodyear
    firefighting records to help him recall the types of fires he responded to and
    his likely chemical exposures. Of the fires identified, Aguirre was most
    concerned about a large fire in a cabinet factory that contained “paints,
    thinners, lacquers, [and] everything that they used to make cabinets,” an
    airport hangar with burning jet fuel, a potato chip factory, a house with
    chlorine stored in the attic, and a number of meth labs. For some fires,
    Aguirre wore a self-contained breathing apparatus (“SCBA”), but for others
    it was not standard practice, and afterwards—when he would not wear a
    SCBA—he would have soot on his hands and face, and up his nose. When
    the firefighters returned to the station after a fire, they would use a garden
    hose and a brush to “try to get as much off of us that we could.” Then they
    cleaned up the equipment and showered.
    ¶5             Marc Wilkenfeld, M.D., board certified in occupational
    medicine, authored a report based on Aguirre’s occupational history as a
    firefighter, and testified at the hearing. When attempting to relate a disease
    to an exposure, the doctor explained that several elements were important:
    (1) the correct disease diagnosis, (2) workplace exposures and latency
    periods—the time between “exposures and the development of the
    disease,” and (3) biologic responsibility, i.e., what the medical literature
    says about exposures in terms of carcinogenicity. The doctor addressed
    these points in his report and testimony.
    ¶6           As background for his report, Wilkenfeld interviewed
    Aguirre and reviewed his work-related exposures to carcinogenic material
    and medical treatment records. Wilkenfeld stated that Aguirre responded
    to four or five fires per month and had annual physical examinations
    clearing him for work as a firefighter. As a firefighter, Aguirre “had
    repeated exposure to the carcinogens present at the fires, often without
    proper protective equipment.” Wilkenfeld concluded that based on his
    review of medical literature, exposure records, and Aguirre’s medical
    history, Aguirre developed CML as a result of such exposures.
    ¶7           Wilkenfeld testified about Aguirre’s exposure to chemicals
    and toxins that could lead to a diagnosis of CML, including benzene,
    asbestos, heavy metals, dioxins, and volatile organic compounds, to which
    he was exposed only during his work as a firefighter. Wilkenfeld explained
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    that the fires Aguirre identified as being of particular concern were
    dangerous in terms of exposure to carcinogens because they involved oils
    and solvents. He also noted that even if Aguirre used protective gear, he
    still would have been exposed to toxins while cleaning his equipment at the
    fire station after firefighting in toxic environments.
    ¶8              Wilkenfeld has experience working with the World Trade
    Center program that has treated firefighters, responders, and survivors of
    the September 11, 2001 attacks (“9/11”) since 2001. He stated that CML is
    on the list of cancers compiled by the federal government that are believed
    to have resulted from 9/11 exposures. He further testified that for
    firefighters present at Ground Zero who developed CML, the federal
    government has accepted latency periods as short as two years. Wilkenfeld
    relied on peer-reviewed studies that have shown increased rates of
    leukemia in firefighters. For these reasons, Wilkenfeld opined that “to a
    reasonable degree of medical certainty,” Aguirre developed CML “as a
    result of exposure that he experienced during his work as a firefighter.”
    ¶9            Jason Salganick, M.D., board certified in medical oncology,
    produced a report and testified on behalf of CopperPoint. He reviewed
    Aguirre’s testimony, medical treatment records, and the Goodyear call
    records, as well as Wilkenfeld’s report and testimony. Salganick also
    performed a literature search on PubMed and reviewed monographs by the
    International Association for Research on Cancer (“IARC”) and what he
    termed documents “involving 9/11 research and government directive
    protocols for compensation of firefighters.”
    ¶10            In his report, Salganick noted that the toxins to which
    firefighters are generally exposed include “benzenes, polycyclic aromatic
    hydrocarbons, aromatic amines, [and] chlorinated dioxins.” He
    acknowledged that benzene is a potential carcinogen and is included in
    IARC’s list of chemicals to which firefighters are presumed to be exposed.
    Salganick testified that firefighters are generally exposed to potential
    carcinogens, including benzene, but he could not determine if Aguirre was
    exposed to a known carcinogen as defined by the IARC because the records
    did not indicate what specific toxins were present at particular fires, what
    protective gear Aguirre wore, or the length of time he spent at each fire.
    ¶11           Salganick also explained he was not aware of a reasonable
    relationship between any carcinogen to which Aguirre may have been
    exposed and CML, yet he acknowledged that Aguirre “would have been
    exposed” to various “well-documented substances,” including benzene.
    Salganick stated he was unable to find that Aguirre’s cancer was “causally
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    related to his work as a firefighter.” Salganick also explained why his
    opinion differed from Wilkenfeld’s opinion when they had both relied on
    the same studies. Salganick stated that based on his review of the medical
    literature, it was necessary to show a standard mortality ratio (“SMR”) of
    greater than 200, or a two-fold increase in the risk of developing cancer,
    before a study could be considered statistically significant and the cancer
    reasonably related for purposes of establishing a compensable claim.
    According to Salganick, there is a paucity of medical literature meeting that
    standard. As a result, the literature only supported a possible connection
    between Aguirre’s work as a firefighter and CML. Regarding the federal
    government’s 9/11 Ground Zero list of potentially-related cancers, the only
    two on the list that have been recognized as being causally related are
    thyroid and prostate cancer.
    ¶12          Following the hearings, the parties filed simultaneous post-
    hearing memoranda. In his ruling, after briefly summarizing the testimony,
    the ALJ stated he was more persuaded by CopperPoint’s memorandum
    and concluded that Aguirre “failed to carry his burden of proving by a
    reasonable preponderance of the evidence that he sustained a work related
    injury on May 14, 2015.” Following Aguirre’s request for review, the ALJ
    summarily affirmed the award and Aguirre sought review in this court.
    DISCUSSION
    ¶13           To establish a compensable injury under the Arizona
    Workers’ Compensation Act, a claimant must prove an accidental injury
    that arose out of, and in the course of, employment. See Ariz. Rev. Stat.
    (“A.R.S.”) section 23-1021; Malinski v. Indus. Comm’n, 
    103 Ariz. 213
    , 216
    (1968) (stating that claimant has the burden to affirmatively establish
    entitlement to compensation). An injury includes an occupational disease,
    A.R.S. § 23-901(13)(c), which is compensable only if the claimant meets six
    requirements, including proof of a “direct causal connection between the
    conditions under which the work is performed and the occupational
    disease,” A.R.S. § 23-901.01(A). The compensability of certain occupational
    diseases contracted by firefighters or peace officers, however, involves a
    lower burden of proof, as reflected in A.R.S. § 23-901.01(B):
    [A]ny disease, infirmity, or impairment of a firefighter’s or
    peace officer’s health that is caused by . . . leukemia . . . and
    that results in disability or death is presumed to be an
    occupational disease as defined in § 23-901, paragraph 13,
    subdivision (c) and is deemed to arise out of employment.
    The presumption is granted if all of the following apply:
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    1. The firefighter or peace officer passed a physical
    examination before employment and the examination did not
    indicate evidence of cancer.
    2. The firefighter or peace officer was assigned to hazardous
    duty for at least five years.
    3. The firefighter or peace officer was exposed to a known
    carcinogen as defined by the international agency for research
    on cancer and informed the department of this exposure, and
    the carcinogen is reasonably related to the cancer.
    (Emphasis added.)3 On appeal, CopperPoint does not dispute that
    subsections B(1) and B(2) have been satisfied; instead, it focuses primarily
    on subsection B(3)’s third prong—the requirement that the carcinogen to
    which Aguirre was allegedly exposed is “reasonably related” to his CML.
    To meet that condition, Aguirre had to “demonstrate that at least one
    carcinogen he was exposed to during hazardous duty is reasonably related”
    to his CML. Hahn v. Indus. Comm’n, 
    227 Ariz. 72
    , 75, ¶ 12 (App. 2011)
    (emphasis added).
    ¶14            Aguirre argues the ALJ’s award lacks legally sufficient
    findings for this court to be able to review whether the award was
    compensable, citing Post. In Post, our supreme court granted review to
    “examine the need for and degree of specificity in findings and awards
    required in workers’ compensation 
    cases.” 160 Ariz. at 5
    . The Post court
    first noted the lack of specificity in the award at issue there—the ALJ “made
    no factual findings of consequence, resolved no conflicts in the evidence,
    and set forth no conclusions applying law to fact. Instead, . . . he simply set
    forth the ultimate legal conclusion.” 
    Id. Concluding that
    “judicial review”
    was not possible “on this record,” the court re-affirmed the longstanding
    principle that an award must specify the basis for the ultimate disposition
    3      The legislature’s 2017 amendment to § 23-901.01(B) included a
    provision addressing the standard of proof required to rebut the
    presumption. See A.R.S. § 23-901.01(F) (“The presumptions provided in
    subsection B of this section may be rebutted by a preponderance of the
    evidence that there is a specific cause of the cancer other than an
    occupational exposure to a carcinogen as defined by the international
    agency for research on cancer.”). Because we only address whether the
    award includes sufficient findings, the 2017 amendment does not affect the
    substance of our analysis.
    6
    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    and the evidence supporting that basis. 
    Id. at 7–8;
    see also Douglas Auto &
    Equip. v. Indus. Comm’n, 
    202 Ariz. 345
    , 347, ¶ 9 (2002) (stating that an ALJ
    “must make factual findings that are sufficiently comprehensive and
    explicit for a reviewing court to glean the basis for the [ALJ’s] conclusions”);
    Wammack v. Indus. Comm’n, 
    83 Ariz. 321
    , 325 (1958) (stating that “the
    findings of administrative agencies must be explicit to enable the reviewing
    court to review the decision intelligently and to ascertain whether the facts
    as found afford a reasonable basis for the decision or be sufficiently definite
    and certain to permit of judicial interpretation”).
    A.      Waiver
    ¶15            CopperPoint contends that Aguirre is precluded from seeking
    appellate review of the sufficiency of the ALJ’s findings because he failed
    to raise the issue in his request for review of the award by the ALJ. We are
    not persuaded by this contention for several reasons. First, nothing in Post
    suggests a party is required to challenge the sufficiency of findings in a
    request for review as a condition of asserting that argument on appeal. 
    See 160 Ariz. at 7
    (requiring ALJs to include sufficient findings to ensure that
    judicial review is possible).
    ¶16            Second, although a party seeking to challenge an ICA award
    in the appellate courts must first file a request for review, A.R.S. § 23-943(A),
    that same provision makes it clear that a party has no obligation to include
    any specific arguments in the request to preserve them for appellate review,
    
    id. (stating that
    a request for review “need only state that the party requests a
    review of the award” and that the request “may be accompanied by a
    memorandum of points and authorities”) (emphasis added). See generally
    Backus v. State, 
    220 Ariz. 101
    , 104, ¶ 11 (2009) (“When statutory language
    admits of only one interpretation, we go no further.”).
    ¶17           Third, CopperPoint’s reliance on Stephens v. Industrial
    Commission, 
    114 Ariz. 92
    (App. 1977), is misplaced. Stephens did not address
    the question presented here—whether the failure to raise a challenge to the
    sufficiency of findings must be raised in a request for review. Instead, the
    issue in Stephens centered on the claimant’s argument that the hearing
    officer erred by addressing whether a permanent disability had been
    proven. 
    Id. at 94,
    95. Explaining that the claimant had previously
    challenged the carrier’s notice terminating benefits with no permanent
    disability, we rejected his argument on three grounds: (1) the claimant
    clearly placed the matter at issue in his request for hearing; (2) given the
    lack of evidence presented regarding a permanent disability, the claimant
    necessarily failed to meet his burden; and (3) he failed to raise the issue at
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    any point in the ICA proceedings. 
    Id. at 96.
    Addressing the third ground,
    we explained that consistent with principles of exhaustion of
    administrative remedies, our review would “be limited to the same matters
    which the hearing officer could consider in its review of its own decision.”
    
    Id. at 95.
    ¶18           Here, Aguirre had no obligation to challenge the sufficiency
    of the findings in the ICA proceedings to preserve it for appeal because the
    only action he was required to take under § 23-943 was to file a request for
    review; he was not required to raise any specific argument. Thus, unlike
    the issue in Stephens, the exhaustion of administrative remedies doctrine
    does not apply here because § 23-943 is permissive as to whether a party
    may challenge the sufficiency of the ALJ’s findings in a request for review.
    See Sw. Paint & Varnish Co. v. Ariz. Dep’t of Envtl. Quality, 
    194 Ariz. 22
    , 24,
    ¶ 14 (1999) (recognizing that “the exhaustion of administrative remedies
    doctrine does not apply in many circumstances, including those where the
    remedy is permissive”).
    ¶19            Because Stephens does not apply to the issue before us, neither
    does the sole reported decision that relied on Stephens in summarily
    concluding that failure to challenge the sufficiency of the ALJ’s findings in
    a request for review waives that argument on appeal. See Spielman v. Indus.
    Comm’n, 
    163 Ariz. 493
    , 496 (App. 1989). Spielman was decided 11 months
    after Post, but did not address it. And the only reported decision citing
    Spielman is Teller v. Industrial Commission, 
    179 Ariz. 367
    , 371 (App. 1994),
    which relied solely on Spielman to conclude that failure to raise lack of
    findings in a request for review precludes that party from raising the issue
    on appeal. Teller has never been cited in a reported decision for the
    principle that a party in an ICA proceeding is precluded from challenging
    the sufficiency of the ALJ’s findings if it failed to raise that argument in a
    request for review. Because the genesis of these two cases was Stephens, a
    case that did not address the question presented here, we decline to follow
    Spielman and Teller insofar as they would preclude us from deciding
    whether the award in this instance includes sufficient findings.
    ¶20            Accordingly, we hold that Post’s requirement that an ALJ
    make findings sufficient to permit meaningful judicial 
    review, 160 Ariz. at 8
    , applies even if a party fails to raise that specific issue in a request for
    review. We are not suggesting a party should ignore an obvious issue of
    insufficient findings; the better practice would be to bring the matter to the
    ALJ’s attention. But failure to do so does not preclude judicial review.
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    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    B.     Sufficiency of Findings
    ¶21           Alternatively, CopperPoint argues the ALJ’s award “contains
    ample findings and conclusions” to permit meaningful appellate review.
    Relying on Pearce Development v. Industrial Commission, 
    147 Ariz. 582
    (1985),
    CopperPoint notes that a court will uphold an award where the ALJ “at
    least draws conclusions on the legal issues” and thereby allows the court to
    “determine from the record” whether the evidence supports the ALJ’s
    conclusions. In Post, our supreme court distinguished Pearce, because the
    ALJ in Pearce “had at least drawn conclusions on the legal issues so that we
    could determine from the record whether the evidence supported his
    
    conclusions.” 160 Ariz. at 8
    . The Post court acknowledged that normally,
    an appellate court reviews the record in search of support for the award.
    
    Id. However, in
    Post, the court was “unable to perform the type of judicial
    review that workers’ compensation cases require.” 
    Id. ¶22 Here,
    the lack of specificity in this award mandates the same
    conclusion. The ALJ summarized the facts and the testimony of both
    doctors and came to the bare conclusion that Aguirre “failed to carry his
    burden of proving by a reasonable preponderance of the evidence that he
    sustained a work related injury.” The ALJ did not resolve conflicting
    evidence, make ultimate factual findings, provide legal analysis of
    § 23-901.01(B)(3), or discuss Hahn, which is the only reported decision to
    date interpreting that statute. See 
    Post, 160 Ariz. at 8
    (“If we were to approve
    the award here, however, with no stated resolution of conflicting testimony,
    no findings of ultimate fact, and no conclusions on the legal issues, there
    would be no purpose in requiring [ALJs] to make findings.”).
    ¶23            Finally, with no citation to authority, CopperPoint also argues
    the ALJ’s reliance on its post-hearing memorandum makes the findings
    sufficient. Our research reveals one reported decision where this court
    found, under unique circumstances, that an ALJ’s reliance on a party’s legal
    memorandum was sufficient to comply with Post. See Hester v. Indus.
    Comm’n, 
    178 Ariz. 587
    , 589–90 (App. 1993) (noting the ALJ’s findings
    “incorporated” one party’s memorandum and the court “could determine
    whether the factual assumptions and legal arguments in this memorandum
    support the no loss award”). Post recognized that an ALJ’s findings do not
    have to be in “any particular form” but the supreme court reiterated that
    “we must know how the [ALJ] reached his or her 
    conclusion.” 160 Ariz. at 8
    –9. Stated differently, regardless of the format in which the findings are
    presented, if the award requires us to speculate about how the ALJ resolved
    material disputes in the case, then the findings are insufficient. See 
    id. at 7–
    9 (“Although lack of findings on a particular issue does not invalidate an
    9
    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    award per se,” if we must “speculate” about the basis for the award or
    “assume a factfinder role,” then the award must be set aside.).
    ¶24            Here, the ALJ’s decision finding that CopperPoint’s
    memorandum was more persuasive does not satisfy Post. We need not
    address every point in the eight-page memorandum to reach this
    determination, as a few examples will suffice. CopperPoint asserted that
    Aguirre failed to meet the statutory presumption, but even if he did, the
    ALJ “should conclude that Dr. Salganick’s opinions are more probably
    correct that there is insufficient scientific evidence to support a causal
    connection between [Aguirre’s] CML and his work as a firefighter.” But
    CopperPoint cited no authority addressing under what circumstances an
    employer may rebut the presumption under the statute, as worded in 2015.
    See 
    Hahn, 277 Ariz. at 77
    , ¶ 18 n.3 (declining to address the “nature and
    effect” of the presumption “when it does apply”).
    ¶25           CopperPoint argued Aguirre failed to establish, under the
    first prong of § 23-901.01(B)(3), he was exposed to a known carcinogen as
    defined by the IARC, relying on Salganick’s testimony. Wilkenfeld stated
    in his report that Aguirre “had repeated exposures to the carcinogens
    present at the fires,” including “Polycyclic Aromatic Hydrocarbons (PAHs)
    and dioxins.” Wilkenfeld testified that as a firefighter Aguirre would have
    been exposed to “things like benzene.” Salganick testified that nothing in
    the records showed that Aguirre was exposed to a known carcinogen, but
    on cross-examination he agreed Aguirre “would have been exposed” to
    substances such as “benzenes, [etc.]” because “they are generally accepted
    as the kinds of chemicals to which firefighters are exposed.” And Salganick
    did not dispute that benzene is listed by the IARC. CopperPoint's
    memorandum, however, did not include any discussion of benzene or the
    other potential carcinogens the doctors discussed in their reports and
    testimony.
    ¶26           CopperPoint’s memorandum also seemed to suggest that
    Aguirre failed to report his exposure to his employer as required by
    the second prong of § 23-901.01(B)(3). The statute does not address when,
    or in what format, such a report must be given. See § 23-901.01(B)(3).
    Regardless, other than the award’s bare reference to the memorandum,
    nothing else in the record indicates the ALJ relied on either of these prongs
    to conclude that Aguirre failed to meet his burden.
    ¶27             CopperPoint argued further that Aguirre “presented
    absolutely no evidence that he was exposed at a particular time to a
    particular carcinogen.” Aguirre challenged this point in his request for
    10
    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    review, asserting that CopperPoint was seeking to impose “an impossible
    burden” by contending that he was required to connect exposure to a
    specific potential carcinogen to a specific firefighting event. Without
    citation to authority, CopperPoint faulted Wilkenfeld for failing to identify
    details such as the year of the exposure, the length of time Aguirre was on
    the scene, whether Aguirre went into the fire or manned a hose or what
    type of protective equipment he used during the alleged exposure. Nothing
    in the statute or Hahn requires this level of detail. As we explained in Hahn,
    application of the statute means Aguirre “need only show a general causal
    link between a carcinogen to which he was exposed and one of the
    enumerated cancers to qualify for the presumption, not that the exposure
    caused his particular 
    cancer.” 277 Ariz. at 76
    , ¶ 16 (second emphasis added).
    ¶28             Finally, as to the credibility of witnesses, the memorandum
    fails to satisfy Post’s directive that an ALJ “must resolve all conflicts in the
    evidence, especially when the conflicts involve expert medical 
    testimony.” 160 Ariz. at 8
    . Although CopperPoint analyzed portions of the testimony,
    the memorandum lacks any meaningful attempt to resolve the various
    conflicts between the opinions offered by Wilkenfeld and Salganick. For
    example, the experts offered conflicting testimony as to what the SMR, or
    increase of risk in developing cancer, must be to show a reasonable relation
    between exposure of a carcinogen and the cancer. According to Salganick,
    anything less than a two-fold increase in the risk means that a connection
    between a carcinogen and the cancer is only possible, not probable, but
    Wilkenfeld disputed that a two-fold increase is required to establish a
    probable association. They also offered differing opinions as to what types
    of carcinogens Aguirre was exposed to, if any, and disagreed as to whether
    Salganick was qualified to offer an expert opinion on causation.
    ¶29           Nothing in the ALJ’s award or the memorandum indicate that
    the ALJ resolved these issues. It is not our role to speculate as to which
    arguments made by CopperPoint the ALJ found more persuasive to
    ultimately conclude that Aguirre failed to meet his burden. Thus,
    referencing the memorandum does not remedy the ALJ’s inadequate
    findings. In our view, an ALJ will generally be better served to issue his or
    her own findings instead of relying on a party’s memorandum. Doing so
    will help avoid ambiguities and conflicts that may arise on appeal. Thus,
    at a minimum, an ALJ choosing to rely on a memorandum should carefully
    delineate which portions of the memorandum he or she is relying on and
    how those portions support the award.
    ¶30           On this record, we must set aside the award because the lack
    of findings leaves us unable to meaningfully review the ALJ’s decision. See
    11
    AGUIRRE v. GOODYEAR/COPPERPOINT
    Opinion of the Court
    
    id. at 7
    (“[W]e have no way of evaluating the basis of the judge’s award and
    consequently cannot determine the factual support for, or the legal
    propriety of, his conclusion.”). Aguirre needed to show a general causal
    link between his exposure to at least one particular carcinogen and his
    CML, but we are unable to determine whether the ALJ erred by ruling he
    failed to meet that burden—we cannot tell what evidence the ALJ relied on
    and why, or what elements of § 23-901.01(B), if any, were not satisfied.
    CONCLUSION
    ¶31         Given the absence of legally-sufficient findings, we set aside
    the ICA award.
    AMY M. WOOD • Clerk of the Court
    FILED: AA
    12