Onysko v. Dept. of Envntl. Quality , 2020 UT App 51 ( 2020 )


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    2020 UT App 51
    THE UTAH COURT OF APPEALS
    STEVEN J. ONYSKO,
    Petitioner,
    v.
    DEPARTMENT OF ENVIRONMENTAL QUALITY AND
    CAREER SERVICE REVIEW OFFICE,
    Respondents.
    Opinion
    No. 20180984-CA
    Filed March 26, 2020
    Original Proceeding in this Court
    Ryan B. Hancey and J. Adam Knorr,
    Attorneys for Petitioner
    Sean D. Reyes and Peggy E. Stone,
    Attorneys for Respondent Department of
    Environmental Quality
    JUDGE GREGORY K. ORME authored this Opinion, in which
    JUDGES MICHELE M. CHRISTIANSEN FORSTER and DIANA HAGEN
    concurred.
    ORME, Judge:
    ¶1     The Department of Environmental Quality (DEQ)
    terminated Steven J. Onysko’s nearly twenty-year employment,
    citing his unprofessional and abusive conduct toward
    coworkers, supervisors, and DEQ customers. Onysko appealed
    his termination to the Career Service Review Office (the CSRO).
    Following a seven-day evidentiary hearing before one of its
    hearing officers, the CSRO issued a decision (the CSRO Decision)
    affirming his termination. Onysko now seeks judicial review of
    the CSRO Decision, and we decline to disturb it.
    Onysko v. DEQ
    BACKGROUND 1
    ¶2     Onysko worked as a level III environmental engineer with
    career service status in DEQ’s Division of Drinking Water
    (DDW). During Onysko’s long employment at DEQ, his
    technical abilities and expertise as an engineer had never been
    called into question.
    DEQ’s Termination of Onysko’s Employment
    ¶3     In 2006, DDW’s director issued a written warning to
    Onysko (the 2006 Warning) regarding, among other things,
    Onysko’s “rude, nasty, arrogant, and confrontational” behavior
    toward his work colleagues and DEQ customers. Nearly two
    years later, in 2008, another director issued a second written
    warning to Onysko (the 2008 Warning) regarding an incident
    with a coworker in which the director characterized Onysko’s
    conduct as “clearly inappropriate and unprofessional.” These
    warnings, however, did not prevent Onysko from receiving
    favorable work performance evaluations. Between 1998 and
    2016, Onysko’s annual evaluations rated his work performance
    as either “Successful” or “Exceptional.”
    ¶4    In September 2016, Onysko’s supervisor (Supervisor)
    completed a performance evaluation for the July 2015–June 2016
    work period, giving Onysko a rating of Successful. In the
    evaluation, Supervisor commended Onysko for his expertise in
    1. “Because the party seeking review of an agency’s order
    following a formal administrative proceeding has the burden to
    prove that the agency’s factual findings are not supported by
    substantial evidence,” which Onysko has not done, “we state the
    facts and all legitimate inferences to be drawn from them in the
    light most favorable to the agency’s findings.” Macfarlane v.
    Career Service Review Office, 
    2019 UT App 133
    , n.1, 
    450 P.3d 87
    (quotation simplified).
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    the field, stating, “Other DDW staff has commented that every
    troubled water system in Utah should go through a Steve
    Onysko sanitary survey.” She also characterized him as “an
    excellent mentor to other engineers because of his knowledge,
    experience, and willingness to help.” But Supervisor noted that
    “[t]here is room for improvement regarding . . . follow up and
    follow through . . . as some projects are not responded [to]
    within the expected time frame.”
    ¶5     Onysko believed he at the very least deserved a rating of
    Very Successful and considered the Successful rating unfair. He
    also disagreed with Supervisor’s room­for­improvement
    comment and said as much in the “Employee Comment” section
    of the evaluation form, calling it “unfair criticism.” But Onysko
    did not stop at this. He continued:
    My inference is that DDW management more
    favorably performance-evaluates engineering staff
    who rubber-stamp public works engineering
    designs, and less favorably performance-evaluates
    engineering staff who do due diligence in review
    of public works engineering designs.
    ....
    DDW management should first be investigated to
    determine whether or not there is conscious,
    deliberate under-supervision of new staff, and
    other junior staff, to leave them intentionally
    ill­prepared to review public works project
    designs, and intentionally ill-prepared to protect
    the public against water project design errors.
    Secondly,   DDW    management   should   be
    investigated to determine whether or not
    management’s reason for taking away certain
    review assignments from me is to “shop” the
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    assignments to other less-senior staff until DDW
    management can find a less discerning engineer
    with consequent briefer review time and more
    likely favorable review finding.
    Thirdly, DDW management should be investigated
    to determine whether or not certain categories of
    review assignments for illegitimate reason are not
    given to me and other experienced engineers. It
    should be determined whether or not DDW
    management excludes experienced engineers from
    review of certain projects because DDW
    management fears our raising of design flaw issues
    that junior engineers, ill-trained by DDW
    management, will not discern.
    In an abusive conduct complaint that Supervisor later filed
    against Onysko, she alleged that when she met with Onysko to
    discuss the evaluation, he threatened to “expose information
    showing that [Supervisor] had improperly monitored other
    [DDW] review engineers” unless she removed the
    room­for­improvement comment from his evaluation.
    ¶6     The following month, Supervisor issued a written
    warning to Onysko (the 2016 Warning). In it, Supervisor
    informed Onysko that she “received numerous verbal and two
    written complaints” from DDW staff and customers about him.
    She stated that “[t]he complaints have had a consistent theme,
    the individuals felt that they could not work with you
    collaboratively or efficiently, and the customers indicated that
    they were being harassed or abused.” Supervisor continued that
    “[m]any of these complaints are actually related to your
    communication style and your demeanor perceived by the
    customers and co-workers,” and after speaking with Onysko
    about the complaints, she had determined that his conduct
    violated DEQ policy. Supervisor then listed six directives
    Onysko was to follow and concluded by warning that “if similar
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    unsatisfactory behavior occurs in the future, further corrective
    and/or disciplinary action may be taken which may include
    termination of your employment.”
    ¶7     A little over a week later, Onysko filed a complaint with
    the federal Occupational Safety and Health Administration
    (OSHA), alleging that the 2016 Warning was retaliatory and in
    violation of the federal Safe Drinking Water Act. OSHA
    eventually dismissed this complaint on the ground that “the
    content did not ‘relate definitively and specifically to the subject
    matter’ of the [Safe Drinking Water Act].”
    ¶8     In November 2016, Onysko filed a grievance concerning
    the 2016 Warning and, on that same day, filed six record
    requests under the Utah Government Records Access and
    Management Act (GRAMA), see Utah Code Ann. §§ 63G­2­101 to
    -901 (LexisNexis 2019), 2 for all of Supervisor’s telephone records
    spanning the prior six months. During a subsequent
    investigation by the Department of Human Resource
    Management (DHRM), Onysko stated that he did not limit the
    requests to the issues in the 2016 Warning because “he did not
    know the phone numbers of the two parties who made [written]
    complaints against him.” 3 He also, as the assigned hearing
    2. Because the statutory provisions in effect at the relevant time
    do not differ in any way material to our analysis from those now
    in effect, we cite the current version of the Utah Code for
    convenience.
    3. The CSRO Decision noted that the DHRM investigator
    discounted this explanation, “reasoning that [Onysko] already
    knew the phone numbers of relevant parties, thus making a
    request for all calls unnecessary.” The CSRO Decision further
    noted that the timing of the GRAMA requests “further discounts
    his explanation” because although the 2016 Warning was issued
    in mid-October, Onysko did not make the GRAMA requests
    (continued…)
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    officer later found, “more likely than not” left a copy of the
    GRAMA requests on Supervisor’s desk.
    ¶9     On December 16, 2016, Supervisor issued Onysko a
    “Notice of Intent to Discipline—Written Reprimand” (the Intent
    to Reprimand) concerning a November 2016 incident with a
    non­DDW employee. 4 Specifically, Onysko had missed a
    morning appointment with the employee, and after it was
    pointed out to him that he had accepted the appointment to his
    calendar, Onysko “became extremely upset and yelled at” the
    employee. Onysko questioned why the employee had not called
    him when he had not appeared for the appointment, and it was
    explained to him that it was not the employee’s responsibility to
    (…continued)
    until mid-November, on “the same day he filed his grievance.”
    Ultimately, on this issue, quoting rule R477-16-1(1)(a) of the Utah
    Administrative Code, the CSRO Decision concluded that “[e]ven
    though [Onysko’s] request was technically legitimate, the scope
    of the documents requested, the unnecessary notification of
    [Supervisor], and the unlikely explanation offered by [him], lead
    to the conclusion that [Onysko] intended to [and did] cause
    [Supervisor] ‘intimidation, humiliation, or unwarranted
    distress,’” thereby amounting to abusive conduct.
    4. The original Intent to Reprimand referred generally to “an
    incident that Occurred on Wednesday November 9, 2016,
    involving [Onysko] and a non-DDW employee in the [state
    office] building.” In early January 2017, Supervisor
    supplemented the Intent to Reprimand to include the details of
    the incident at issue after Onysko pointed out in his written
    response to the original Intent to Reprimand that the document
    did not provide specifics. For ease of recounting the facts of this
    case, we refer to the original and amended letters collectively as
    “the Intent to Reprimand.”
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    do so. Onysko responded that the situation was “ridiculous” and
    that he did not understand why the employee had not called
    him. The employee apologized, and Onysko responded, “I’m not
    upset; I’m just disappointed.” In the Intent to Reprimand,
    Supervisor described Onysko’s conduct as inappropriate, a cause
    for grave concern, and in violation of the DEQ Code of Conduct.
    She further noted that this “incident and previous complaints
    against [him] all share a similar theme of unprofessional and
    impolite communication with others.” As a result, Supervisor
    notified him that she intended to discipline him “in the form of a
    Written Reprimand.”
    ¶10 Supervisor and a DHRM representative (DHRM
    Representative) met with Onysko to deliver and discuss the
    Intent to Reprimand, but he quickly became upset and cut the
    meeting short, citing health reasons. As a result, Supervisor and
    DHRM Representative left the Intent to Reprimand on Onysko’s
    desk. The next business day, Onysko met with DHRM
    Representative to discuss the document. He then informed
    DHRM Representative that he intended to file a criminal
    complaint regarding the manner in which she and Supervisor
    had delivered the Intent to Reprimand on the previous work
    day.
    ¶11 After receiving the Intent to Reprimand, but before
    Supervisor issued the corresponding “Notice Imposing
    Discipline—Written Reprimand” (the Written Reprimand),
    Onysko filed another GRAMA records request for “all sanitary
    survey reports performed by [Supervisor],” a copy of which he
    also “more likely than not” left on Supervisor’s desk. 5 He also
    5. In a subsequent DHRM investigation, Onysko stated that he
    made the request because “he wanted to see if [Supervisor] had
    made the same kinds of errors in her reports for which she (in
    part) had issued [Onysko the Written Reprimand].” The CSRO
    Decision concluded that Onysko “had no work-related reason to
    (continued…)
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    filed an abusive conduct complaint against Supervisor with
    DHRM.
    ¶12 In mid-January 2017, Supervisor issued the Written
    Reprimand, informing Onysko that “[t]his Letter also serves as a
    notice that if misconduct continues to occur, I will consider
    further disciplinary action, which may include termination of
    your employment.” Onysko protested the Written Reprimand on
    the ground that it did not include mandatory right-to-appeal
    language, and a subsequent letter—identical to the original but
    with the mandatory language included—was issued 10 days
    later. Onysko filed a grievance challenging the amended Written
    Reprimand, which DEQ’s executive director (Executive Director)
    denied, along with Onysko’s earlier grievance related to the 2016
    Warning.
    ¶13 Less than a week after receiving the Written Reprimand,
    Onysko delivered a copy of his abusive conduct complaint,
    made to DHRM two weeks earlier, to Supervisor. Supervisor, in
    turn, filed an abusive conduct complaint against Onysko. In her
    complaint, she made seven allegations of abusive conduct:
    i.   That [Onysko], after receiving the [Intent to
    Reprimand], told [DHRM Representative]
    that he intended to file a criminal complaint
    regarding the circumstances of the
    document’s December 16, 2016 delivery.
    (…continued)
    review [Supervisor’s] prior projects” and that “[t]he existence of
    such errors by [Supervisor] would be irrelevant to the Written
    Reprimand” because “they would not excuse or balance out
    [Onysko’s] conduct.” Therefore, quoting rule R477-16-1(1)(a) of
    the Utah Administrative Code, the CSRO Decision stated that
    Onysko’s “conduct intended to cause [Supervisor], and did
    cause her, ‘intimidation, humiliation, or unwarranted distress.’”
    20180984-CA                     8               
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    ii.   That following the [2016 Warning],
    [Onysko] filed multiple records requests
    under GRAMA for all of [Supervisor’s]
    telephone records over a six-month period,
    and that he left copies of the GRAMA
    requests on [Supervisor’s] desk.
    iii.   That following his receipt of the [Written
    Reprimand], [Onysko] made a records
    request under GRAMA for all sanitary
    survey reports done by [Supervisor], and
    again left a copy of the request on [her]
    desk.
    iv.    That Onysko’s [verbal] comments [made in
    a meeting concerning] the July 2016
    evaluation threatened [Supervisor].
    v.    That on April 7, 2016, [Onysko] complained
    to another manager about [Supervisor’s]
    conduct in an April 6, 2016 meeting.
    [Supervisor] asserted [Onysko’s] conduct
    was abusive because the victim of the
    conduct did not consent to the complaint.
    vi.    That on February 28, 2017, [Onysko]
    commented to staff that [Supervisor] had
    inappropriately  revealed    confidential
    information.
    vii.    That [Onysko] “intentionally spreads lies to
    harm        [Supervisor’s]     professional
    reputation.”
    ¶14 DHRM dismissed Onysko’s complaint against Supervisor
    in April 2017. And in May, DHRM issued an investigation report
    (the Investigation Report) substantiating Supervisor’s first four
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    allegations in her abusive conduct complaint against Onysko 6
    but determining that the last three allegations, which it found
    had in fact occurred, did not rise to the level of abusive conduct. 7
    See Utah Admin. Code R477-16-1(1) (defining abusive conduct).
    ¶15 In June 2017, pending its review of the Investigation
    Report, DEQ placed Onysko on paid administrative leave. And
    in July, the DDW director issued Onysko an “Intent to
    Discipline—Dismissal for Just Cause and the Good of the Public
    Service” (the Intent to Dismiss). The document listed several
    reasons for her intent to terminate Onysko’s employment: (1) the
    2006 Warning, (2) the 2008 Warning, (3) the 2016 Warning,
    (4) the Intent to Reprimand, (5) the Investigation Report,8 (6) a
    6. At the time DHRM issued the Investigation Report, there was
    no procedure in place through which an employee could seek
    review of the findings of an abusive conduct investigation. In
    2018, the Legislature established such a process for the CSRO,
    enabling it to review the findings of abusive conduct
    investigations. Compare 
    Utah Code Ann. § 67
    -19a-202
    (LexisNexis Supp. 2016), with 
    id.
     § 67­19a­202(3) (Supp. 2018).
    7. Onysko did not receive a copy of the Investigation Report
    until after DEQ terminated his employment. Instead, DHRM
    sent Onysko a confusingly phrased letter informing him that
    “[i]t is the opinion of the investigators that the complaint that
    you engaged in nonverbal conduct intended to intimidate,
    humiliate or cause you unwarranted distress in violation of the
    above-cited Abusive Conduct rule is substantiated.”
    8. The Intent to Dismiss limited its discussion of the
    Investigation Report to the following:
    This investigation substantiated that you used
    the normally unobjectionable activities of filing
    GRAMA requests to intentionally intimidate and
    (continued…)
    20180984-CA                     10                 
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    lack of improvement “[d]espite performance coaching and
    escalating disciplinary actions,” and (7) his “misconduct
    [being] disruptive to the workplace” and “caus[ing]
    burdensome delays in [DDW] processes and damage to the
    morale within [DDW].” The director gave several examples
    of Onysko’s conduct to illustrate the last point: (i) his
    “intimidating threats” had caused “staff [to spend]
    unnecessary effort to excessively check, re­check and document
    decisions in an effort to shield themselves against [his]
    intimidating threats”; (ii) his “unnecessary project scrutiny and .
    . . uncollaborative communication style” had resulted in
    increased project completion times and unwarranted
    administrative processing; (iii) his repeated research and
    critiques of his coworkers’ projects and accusations of
    incompetence had resulted in unnecessary and burdensome
    delays; (iv) his repeated threats and follow­through with
    complaints to the Division of Occupational and Professional
    Licensing (DOPL) against other engineers had resulted in
    coworkers requesting not to work with him; (v) his behavior had
    (…continued)
    cause unwarranted distress to [Supervisor]. The
    investigation also substantiated that you
    threatened to file criminal charges in response to
    standard management practices, and that you
    threatened [Supervisor] over a performance
    evaluation.
    Importantly, in reaching their determination
    that you had engaged in abusive conduct, the
    investigators noted a consistent and troubling
    pattern of using otherwise unobjectionable
    activities like filing GRAMA requests and
    complaints, administrative or otherwise, to
    intimidate or distress co-workers as well as
    management.
    20180984-CA                    11                
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    caused DDW clients to express frustration with working with
    him, resulting in his coworkers being burdened with extra
    workloads; and (vi) his refusal to use DDW templates and
    common standard editing practices had resulted in project
    delays and unnecessary administrative processing.
    ¶16 On August 1, 2017, Onysko, now represented by counsel,
    met with Executive Director to discuss the Intent to Dismiss. In
    support of his position, Onysko “submitted 162 pages of
    documents and spent two hours arguing [his] case verbally.”
    And in October, after Onysko’s counsel informed DEQ that he
    no longer wished to pursue settlement discussions, Executive
    Director issued a letter entitled “Final Agency Decision—
    Termination” (the Termination Letter). The Termination Letter
    incorporated the Intent to Dismiss but also discussed three
    additional grounds: (1) referencing Supervisor’s last three
    allegations that the Investigation Report concluded did not
    amount to abusive conduct, Executive Director stated that
    his “review of th[ose] allegations shows that they at least
    illustrate the disruptive nature of [Onysko’s] behavior in [DDW]
    and [his] unjustified hostility and ill feelings toward
    [Supervisor]”; (2) the OSHA complaint Onysko originally filed
    in response to the 2016 Warning 9 and certain prior unsuccessful
    OSHA complaints he had filed against DDW that had by that
    point already been “rejected and defeated at every level of
    review,” including the Tenth Circuit Court of Appeals; and (3)
    that since Onysko had been placed on administrative leave,
    “both morale and production are up in [DDW],” serving as
    “further evidence that [his] actions, behavior, and contentious
    dealings toward [his] supervisors and co-workers have been
    disruptive to [DDW].”
    9. In January 2017, Onysko amended his OSHA complaint to
    allege that the Written Reprimand, the Intent to Reprimand, and
    the attempted service thereof were also retaliatory.
    20180984-CA                   12               
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    The CSRO Proceedings
    ¶17 Onysko appealed his termination to the CSRO. See 
    Utah Code Ann. § 67
    -19a-202(1) (LexisNexis Supp. 2019). A hearing
    officer (the Hearing Officer) was assigned to consider the matter
    and held a seven­day level 4 evidentiary hearing in mid­2018, in
    which Onysko represented himself. 10 See 
    id.
     § 67­19a­302(1); Utah
    Admin. Code R137­1­18(2)(a) (“Level 4 adjudications at the
    CSRO are formal adjudicative proceedings.”). At issue was
    (1) whether DEQ’s “termination of [Onysko’s] employment
    [was] supported by just cause, or to advance the good of the
    public service” and (2) whether DEQ “correctly appl[ied]
    relevant policies, rules, and statutes.”
    ¶18 Onysko did not testify during the hearing. When his
    opportunity to testify arose, he “brought a binder of notes and
    documents to the witness table to use in testifying.” Citing rule
    612(b) of the Utah Rules of Evidence, 11 the Hearing Officer asked
    10. The hearing was originally scheduled for three days, but it
    was extended by an additional four days due to Onysko’s
    “conduct and presentation of his case,” specifically his
    “insist[ence] on continuing conduct that delayed the progress of
    the hearing.” The CSRO Decision concluded that “[a]lthough
    some delay in the progress of the hearing may be reasonably . . .
    attributed to his pro se status, much of the delay was a direct
    result of [Onysko’s] inefficient presentation of his case and his
    disregard of previous rulings, orders, explanations, and
    directions.”
    11. Rule 612 regulates a witness’s ability to use “a writing” to
    refresh the witness’s recollection. Subsection (b) details the
    procedure for the writing being produced and examined.
    Although recognizing “that the Utah Rules of Evidence do not
    apply to CSRO proceedings,” see Utah Admin. Code
    R137­1­18(3), the Hearing Officer nonetheless applied rule 612(b)
    (continued…)
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    Onysko not to refer to the binder during his testimony. A
    discussion on the subject ensued, and Onysko eventually
    permitted the Hearing Officer to conduct an in-chambers
    inspection of the binder. Following his review of the binder, the
    Hearing Officer determined that it contained Onysko’s “notes
    and work product, intended to guide [his] testimony” and
    instructed Onysko “to remove those documents, or identify, or
    provide copies of those documents to [DEQ] before testifying.”
    Onysko refused to do so and, as a consequence, did not testify at
    that point.
    ¶19 The Hearing Officer later gave Onysko a second
    opportunity to testify, but Onysko, claiming the binder he
    intended to use during his testimony contained “protected work
    product and that review would disclose his hearing strategy to
    the Hearing Officer,” refused to permit another in­chambers
    inspection of it. The Hearing Officer again “explained that if
    [Onysko] did not testify, the record would contain little evidence
    in support of his case,” but Onysko nevertheless declined
    inspection and consequently did not testify. At the conclusion of
    the seven-day hearing, the Hearing Officer directed Onysko to
    submit a written proffer of the testimony he would have given.
    Onysko submitted the proffer, and the Hearing Officer
    “generally accept[ed] the facts asserted therein . . . as true.” The
    Hearing Officer further noted that “[t]hose facts do not
    contradict other testimony or evidence in any material way.”
    (…continued)
    because he “believe[d] the approach set out in the Rule ensures
    fairness to both parties and minimizes the possibility that
    inadmissible or unreliable evidence may be introduced into the
    record.” See Utah Code Ann. § 63G-4-206(2) (LexisNexis 2019)
    (stating that officers presiding over formal adjudicative
    proceedings are not precluded “from taking appropriate
    measures necessary to preserve the integrity of the hearing”).
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    The CSRO Decision
    ¶20 Following the hearing, the Hearing Officer issued the
    CSRO Decision upholding DEQ’s dismissal of Onysko. In
    reaching this conclusion, the CSRO Decision stated that it did
    not rely on the 2006 Warning or the 2008 Warning as they were
    “too remote in time to be relevant to the termination of
    [Onysko’s] employment” but did find the 2016 Warning and the
    Written Reprimand to be relevant.
    ¶21 The CSRO Decision first addressed Onysko’s argument
    that DEQ “did not notify [him] in writing of the specific reasons
    for the proposed dismissal or demotion,” in contravention of
    rule R477-11-2(2)(a) of the Utah Administrative Code. The CSRO
    Decision acknowledged that Onysko did not receive a copy of
    the Investigation Report until after his termination and that the
    DHRM letter informing him of the outcome of the investigation
    “makes little sense and does not describe the alleged abusive
    behavior.” Nevertheless, the CSRO Decision concluded that
    Onysko “received adequate notice of [DEQ’s] charges against
    him,” because he “received other notifications of the reasons for
    [DEQ’s] decision to terminate [his] employment.”
    ¶22 Specifically, the Intent to Dismiss referred to the 2006
    Warning, the 2008 Warning, the 2016 Warning, the Intent to
    Reprimand, and the Investigation Report. And although the
    Intent to Dismiss “did not describe the allegations in the
    Investigation Report in detail,” it “did refer to the filing of
    GRAMA requests, threats to file a police report, . . . threats to
    [Supervisor] over a performance evaluation,” and “the
    disruptive effect of [Onysko’s] conduct on the workplace and the
    performance of DDW.” Based on this, the CSRO Decision
    concluded that Onysko “was sufficiently on notice as to the
    allegations underlying [DEQ’s] decision to recommend
    termination of employment” and that “[a] reasonable person
    reading the [Intent to Dismiss] and the [Termination Letter]
    would understand the reasons, including the specific instances
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    of abusive conduct for [DEQ’s] decision to terminate [Onysko’s]
    employment.” This conclusion was further supported by the
    absence of evidence that Onysko ever “asked for clarification or
    amplification of any of [the] documents prior to this proceeding”
    and by Onysko’s ability “to present his reasons and arguments
    why his employment should not be terminated” in his August 1,
    2017 meeting with Executive Director.
    ¶23 The CSRO Decision next addressed whether DEQ had
    cause to terminate Onysko’s employment. After noting that DEQ
    largely based its decision on the Investigation Report’s findings
    of abusive conduct, the CSRO Decision acknowledged that DEQ
    “also relied on the repetitive nature of [Onysko’s] conduct
    including prior discipline, the likelihood that [Onysko’s] conduct
    would not improve the effect of [Onysko’s] conduct on [DDW]
    morale, the effect of [Onysko’s] conduct on [DDW] productivity,
    and [Onysko’s] violation of DEQ and DDW policies.”
    ¶24 As concerns Onysko’s abusive conduct, the Hearing
    Officer concluded that “[t]here is substantial evidence
    supporting the conclusion that the conduct alleged in each of the
    seven individual allegations [in Supervisor’s abusive conduct
    complaint] did occur.” Like the Investigation Report, the CSRO
    Decision concluded that only Supervisor’s first four allegations
    against Onysko constituted abusive conduct, but the CSRO
    Decision stated that the Hearing Officer considered the conduct
    described in the latter three allegations as corroborative of other
    evidence of Onysko’s improper conduct. The CSRO Decision
    further determined that the conduct described in the first four
    allegations—as well as Onysko’s conduct affecting DEQ
    customers, productivity, and morale—violated DEQ Policies and
    Procedures and DDW Operating Principles.
    ¶25 And with regard to the effect of Onysko’s conduct on
    DEQ customers, productivity, and morale, the CSRO Decision
    noted that “[t]he consensus of the witnesses was that [DEQ]
    morale was poor, that the poor morale was due to [Onysko’s]
    20180984-CA                    16                
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    Onysko v. DEQ
    conduct, and that [DEQ] productivity and morale improved
    after [Onysko] left [DEQ].” The CSRO Decision further stated
    that Onysko’s “conduct throughout this proceeding also tends to
    corroborate the testimony of [DEQ’s] witnesses and supports
    [DEQ’s] assessment of [Onysko’s] conduct and its effect on
    [DEQ]” as “disruptive, morale-breaking, and intimidating.”
    ¶26 The CSRO Decision gave several examples of such
    in­hearing conduct. First, “after being specifically directed that
    such questioning was inappropriate,” Onysko nonetheless “[o]n
    at least three occasions . . . objectively intimidated or unsettled a
    witness by referring to the Fifth Amendment, or to the fact that
    they were testifying under oath when there was no legitimate
    reason to use such a question to verify their truthfulness or
    credibility.”
    ¶27 Second, in a motion to compel, DEQ’s counsel stated that
    Onysko had requested a stay in discovery “in part to avoid
    responding to the discovery requests.” In response, Onysko
    wrote:
    Grievant respectfully cautions [DEQ’s] Counsel
    that if he persists in scurrilous attacks on Grievant,
    [DEQ’s] Counsel will do so at peril of Utah Bar
    complaint by Grievant alleging unethical conduct
    by [DEQ’s] Counsel. [DEQ’s] Counsel has a history
    of his being known in Utah legal circles in general,
    and known to Grievant in particular, for being
    untethered to the truth,[12] and Grievant will not
    12. The emphasis was supplied by Onysko. The CSRO Decision
    noted that Onysko “did not provide, and has not yet provided,
    any evidence whatsoever in support of this remarkable
    accusation” but commented “that throughout th[e] proceeding,
    [DEQ’s counsel] has acted as an honest, ethical, and capable
    member of the bar.”
    20180984-CA                     17                 
    2020 UT App 51
    Onysko v. DEQ
    abide unchallengingly by        such   conduct    in
    Grievant’s matters again.
    Grievant demands that [DEQ’s] Counsel retract his
    scurrilous allegation that Grievant requested a stay
    in discovery in this matter “in part to avoid
    responding to the discovery requests.”
    And throughout the rest of Onysko’s response to DEQ’s motion
    to compel, he referred to DEQ’s counsel’s “willful deceit,”
    “misrepresentation,” “untruthfulness,” and “vacuous, inane
    argument.” He also “continued to allege professional
    misconduct and untruthfulness by [DEQ’s] counsel throughout
    this proceeding.”
    ¶28 Third, Onysko exhibited similar behavior toward the
    Hearing Officer. In various motions filed throughout the
    proceeding, Onysko “stated that the Hearing Officer
    ‘shamelessly discounted written testimony,’” that the
    “proceeding was ‘rife with judicial error,’ that the Hearing
    Officer’s conduct was ‘illegitimate,’ and that the Hearing
    Officer’s ‘specious argument’ was ‘patently false and
    illegitimate.’” Onysko also claimed that “a reasonable person
    would infer poorly-veiled Hearing Officer bias,” and that he “is
    appalled that the Hearing Officer has abused his authority in
    concocting fake legal arguments with no foundation in
    recognized precedent.” And during the evidentiary hearing,
    Onysko “made multiple references to the certainty and outcome
    of his appeal if he did not prevail.”
    ¶29 The CSRO Decision thus concluded that Onysko’s
    “objectively intimidating” “conduct throughout th[e] proceeding
    demonstrates that his preferred method to address a
    difference of opinion is to threaten, intimidate, belittle, and
    otherwise attack the other party” and that such conduct would
    “tend to adversely affect the morale of coworkers and others.”
    The CSRO Decision further stated that in exhibiting such
    20180984-CA                   18               
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    Onysko v. DEQ
    conduct in “a formal proceeding intended to determine
    whether or not he returns to work for [DEQ],” Onysko
    “demonstrated a reasonable likelihood that this conduct would
    also extend to supervisors and superiors.” The CSRO Decision
    concluded that Onysko’s “conduct in the hearing thus tends to
    corroborate the testimony of [DEQ] witnesses,” and based on the
    corroborated testimony, the Hearing Officer determined that
    “[s]ubstantial evidence supports the conclusion that [Onysko’s]
    conduct adversely affected [DEQ] customers, productivity, and
    morale.”
    ¶30 After next determining that DEQ’s “decision to terminate
    [Onysko] was neither disproportionate nor inconsistent” and
    “was not an abuse of its discretion,” the CSRO Decision affirmed
    DEQ’s termination of Onysko’s employment. Onysko now seeks
    judicial review of the CSRO Decision. See 
    Utah Code Ann. § 67
    ­19a-406(6) (LexisNexis Supp. 2019).
    ISSUES AND STANDARDS OF REVIEW
    ¶31 Our review of the CSRO Decision is governed by the Utah
    Administrative Procedures Act (UAPA). See Utah Code Ann.
    § 63G-4-403(1) (LexisNexis 2019); id. § 67-19a-406(6) (Supp. 2019);
    Macfarlane v. Career Service Review Office, 
    2019 UT App 133
    , ¶ 29,
    
    450 P.3d 87
    . Under UAPA, we may grant relief only if the
    petitioner “has been substantially prejudiced” by certain errors
    enumerated in Utah Code section 63G-4-403(4). Unless section
    63G-4-403(4) incorporates a specific standard of review, the
    standard of review for alleged agency error “depend[s] on the
    type of action in question,” and “we are free to apply our
    traditional approach for selecting an appropriate standard of
    review,” depending on whether the agency action “can be
    characterized as a question of law, a question of fact, or a mixed
    question of law and fact.” Murray v. Utah Labor Comm’n, 
    2013 UT 38
    , ¶¶ 21–22, 
    308 P.3d 461
    .
    20180984-CA                    19                
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    Onysko v. DEQ
    ¶32 Onysko raises four claims of error that we address on
    the merits. 13 He first takes issue with the CSRO Decision’s
    discussion of his conduct during the seven-day hearing. He
    argues that the Hearing Officer relied on improper propensity
    evidence to infer “that because [he] supposedly acted a certain
    way during the Hearing itself, it is likely he acted that same way
    during the time at issue in the Hearing.” For the reasons
    discussed in Section I, we agree with DEQ that the references are
    better characterized as an explanation of the Hearing Officer’s
    resolution of conflicting evidence concerning the effect of
    Onysko’s misconduct on DEQ morale and productivity—and
    not as propensity evidence. 14
    13. Onysko also argues that the Hearing Officer erroneously
    concluded that his “termination was proportionate and
    consistent” but only after “all of the Hearing Officer’s
    improper findings and conclusions” are disregarded. Because
    his other claims of error are unavailing, we do not reach this
    issue.
    14. By characterizing the Hearing Officer’s references to
    his in­hearing conduct as improper propensity evidence,
    Onysko implicitly invokes rule 404 of the Utah Rules of
    Evidence. Indeed, the cases Onysko relies on in making
    this argument specifically address propensity evidence in the
    context of rule 404. We note that level 4 proceedings at the
    CSRO are not subject to “[t]he technical rules of evidence . . .
    as observed in the courts of law, . . . except for the rules of
    privilege as recognized by law and those specific references to
    the rules of evidence and procedure as set forth in the UAPA.”
    Utah Admin. Code R137­1­18(3). See Frito–Lay v. Utah Labor
    Comm’n, 
    2009 UT 71
    , ¶¶ 17–18, 
    222 P.3d 55
     (stating that “[w]e
    are powerless to impose our court rules,” such as our rules
    of procedure and evidence, “on proceedings outside of state
    (continued…)
    20180984-CA                    20               
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    Onysko v. DEQ
    ¶33 It is well recognized that “when the evidence is
    disputed, . . . we defer to the [agency’s] assessment of
    credibility and resolution of conflicting evidence.” Dinger
    v. Department of Workforce Services, 
    2013 UT App 59
    , ¶ 20,
    
    300 P.3d 313
     (quotation simplified). See also Provo City v.
    Utah Labor Comm’n, 
    2015 UT 32
    , ¶ 8, 
    345 P.3d 1242
     (“We
    defer to an administrative agency’s findings because when
    reasonably conflicting views arise, it is the agency’s province
    to draw inferences and resolve these conflicts.”) (quotation
    simplified); Johnson v. Department of Emp’t Sec., 
    782 P.2d 965
    ,
    972 n.9 (Utah Ct. App. 1989) (“[T]he agency trier of fact has
    the same discretion as a trial judge in determining the
    credibility of evidence.”). In light of this well­established
    principle and legislation permitting officers presiding over
    formal adjudicative proceedings to “use [their] experience . . . to
    (…continued)
    and local courts,” including “[a]dministrative adjudications”).
    And UAPA is entirely silent as to this particular evidentiary
    question. See generally Utah Code Ann. §§ 63G-4-206, -208
    (LexisNexis 2019). But Onysko’s argument before this court
    omits any discussion of how his implicit rule 404 argument
    would nonetheless apply to level 4 proceedings. And we are
    doubtful that it would. Cf. Frito–Lay, 
    2009 UT 71
    , ¶ 18 (“In
    the event that the legislature and the administrative agency
    are both silent as to the procedure that governs a
    particular situation, we still may not impose our rules to fill the
    gap.”). Thus, even if we agreed with Onysko that the CSRO
    Decision’s references to his in­hearing conduct amounted to
    propensity evidence, his argument would still ultimately prove
    unavailing because he has not met his burden of persuasion as
    concerns that question. See Allen v. Friel, 
    2008 UT 56
    , ¶ 9, 
    194 P.3d 903
     (“An appellate court is not a depository in which a
    party may dump the burden of argument and research.”)
    (quotation simplified).
    20180984-CA                    21                
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    Onysko v. DEQ
    evaluate the evidence,” Utah Code Ann. § 63G­4-208(2)
    (LexisNexis 2019), we conclude that “the Legislature . . . has
    delegated discretion to the agency within the meaning of section
    63G­4­403(4)(h)(i)” to resolve conflicting evidence, and we
    therefore review this issue for an abuse of discretion, Murray,
    
    2013 UT 38
    , ¶ 30.
    ¶34 “[T]he appellate court will review . . . [a] discretionary
    decision for an ‘abuse of discretion’ to ensure that it falls
    within the bounds of reasonableness and rationality.
    Reasonableness, in turn, is essentially a test for logic and
    completeness rather than the correctness of the decision.” Id.
    ¶ 32. But our review of this first issue does not end at this.
    Because “we can grant relief under [section 63G-4-403(h)(i)] only
    after reviewing the [CSRO’s] determination of fact for a lack of
    substantial evidence,” id. ¶ 19, our review additionally
    incorporates a substantial-evidence standard. “Substantial
    evidence is more than a mere scintilla of evidence though
    something less than the weight of the evidence, and the
    substantial evidence test is met when a reasonable mind might
    accept as adequate the evidence supporting the decision.” Foye v.
    Labor Comm’n, 
    2018 UT App 124
    , ¶ 16, 
    428 P.3d 26
     (quotation
    simplified).
    ¶35 Onysko’s next two arguments implicate the Due
    Process Clause of the Fourteenth Amendment. He contends
    that the CSRO Decision violated his due process rights when
    it (A) upheld DEQ’s decision on reasons not communicated
    to Onysko prior to termination and (B) concluded that he
    received meaningful pre­termination notice. “Questions
    regarding whether an administrative agency has afforded a
    petitioner due process in its hearings are questions of law,” Lopez
    v. Career Service Review Board, 
    834 P.2d 568
    , 571 (Utah Ct. App.
    1992), and fall within the purview of Utah Code section
    63G­4­403(4)(d), meaning they are reviewed without deference,
    for correctness.
    20180984-CA                    22                
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    Onysko v. DEQ
    ¶36 Onysko’s last argument implicates the residuum rule 15 by
    assailing several of the Hearing Officer’s findings of fact on the
    ground that they are exclusively based on hearsay. This
    allegation of error likewise falls within the scope of section
    63G­4­403(4)(d). See Prosper, Inc. v. Department of Workforce
    Services, 
    2007 UT App 281
    , ¶ 8, 
    168 P.3d 344
    . Thus, “[w]hether
    the [CSRO] erroneously applied the residuum rule is a question
    of law, which we review for correctness.” BMS Ltd. 1999, Inc. v.
    Department of Workforce Services, 
    2014 UT App 116
    , ¶ 2, 
    327 P.3d 582
    . Additionally, “[t]he determination of whether evidence
    constitutes hearsay is a question of law that we review” de novo.
    Prosper, 
    2007 UT App 281
    , ¶ 8.
    ANALYSIS
    I. Onysko’s In-hearing Conduct
    ¶37 Onysko argues that the CSRO Decision erroneously
    relied on his conduct throughout the course of the seven-day
    hearing to substantiate DEQ’s allegation that his conduct
    negatively impacted DEQ morale and productivity. Although
    Onysko frames the CSRO Decision’s use of his in­hearing
    conduct as an improper propensity inference, we agree with
    DEQ that the conduct was used in a more limited way, i.e., to
    help resolve conflicting evidence by confirming the considerable
    testimony offered on the subject—and not as primary
    substantive evidence.
    15. “The residuum rule requires that an administrative
    [agency’s] findings of fact be supported by a residuum of legal
    evidence competent in a court of law even if the [agency] has
    received and considered evidence of a lesser quality.” Aura Spa
    & Boutique v. Department of Workforce Services, 
    2017 UT App 152
    ,
    ¶ 11, 
    402 P.3d 813
     (quotation simplified).
    20180984-CA                    23               
    2020 UT App 51
    Onysko v. DEQ
    ¶38 It was only after the Hearing Officer reviewed in the
    CSRO Decision DEQ’s evidence offered in support of the
    contention that Onysko’s conduct negatively impacted
    productivity and morale that the Hearing Officer stated that
    Onysko’s “conduct throughout this proceeding also tends to
    corroborate the testimony of [DEQ’s] witnesses and supports
    [DEQ’s] assessment of [Onysko’s] conduct and its effect on
    [DEQ].” With this preface, the CSRO Decision then proceeded to
    discuss Onysko’s “objectively intimidating” behavior toward
    witnesses, DEQ’s counsel, and even the Hearing Officer. And
    although the CSRO Decision did state that “[i]f [Onysko]
    habitually indulged in such conduct in a formal proceeding
    intended to determine whether or not he returns to work for
    [DEQ], it is likely that he did no less in his everyday work
    environment,” this statement was immediately followed, with
    our emphasis, by the conclusion that Onysko’s “conduct in the
    hearing thus tends to corroborate the testimony of [DEQ]
    witnesses as to the disruptive, morale­breaking, and
    intimidating nature of [Onysko’s] conduct.” Based on this, we
    agree with DEQ that the Hearing Officer used Onysko’s
    in­hearing conduct only as confirmation of the considerable
    testimony already offered by DEQ’s witnesses and not for
    propensity purposes. Our review is therefore limited to whether
    the Hearing Officer abused his discretion in considering
    Onysko’s in-hearing conduct.
    ¶39 UAPA expressly authorizes officers presiding over formal
    adjudicative proceedings to rely on their own experience when
    evaluating evidence. Utah Code Ann. § 63G-4-208(2) (LexisNexis
    2019). Here, the Hearing Officer observed and interacted with
    Onysko for a significant period of time (as opposed to a more
    typical shorter hearing) and did not premise any of the findings
    solely on those observations. Rather, the Hearing Officer used
    the observations as confirmation of DEQ’s evidence with respect
    to Onysko’s difficult manner and his negative effect on morale
    and productivity, which was a matter of disagreement between
    20180984-CA                   24               
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    Onysko v. DEQ
    the parties that the Hearing Officer was tasked with resolving.
    See Utah Admin. Code R137­1­21(3)(a). Thus, under the
    circumstances of this case, the Hearing Officer’s consideration of
    Onysko’s in­hearing conduct fell “within the bounds of
    reasonableness and rationality.” 16 See Murray v. Utah Labor
    Comm’n, 
    2013 UT 38
    , ¶ 32, 
    308 P.3d 461
    .
    II. Due Process
    ¶40 “Where state or local law establishes a public employee’s
    right to continued employment absent cause for discharge, that
    employee holds a property interest in continued employment
    that is protected by the Due Process Clause of the Fourteenth
    Amendment.” Becker v. Sunset City, 
    2013 UT 51
    , ¶ 13, 
    309 P.3d 223
    . It is undisputed that Onysko, a level III environmental
    engineer with career service status, held such a property interest
    in his continued employment with DEQ. See 
    Utah Code Ann. § 67-19-18
    (1) (LexisNexis 2016).
    ¶41 “The essential requirements” of due process “are notice
    and an opportunity to respond—the opportunity to present
    reasons, either in person or in writing, why proposed action
    16. Concerning the second portion of our review, i.e., whether
    substantial evidence supported the Hearing Officer’s findings of
    fact regarding Onysko’s conduct, see Murray v. Utah Labor
    Comm’n, 
    2013 UT 38
    , ¶ 19, 
    308 P.3d 461
    , it is clear that “a
    reasonable mind might accept as adequate the evidence
    supporting the” CSRO Decision’s relevant findings, see Foye v.
    Labor Comm’n, 
    2018 UT App 124
    , ¶ 16, 
    428 P.3d 26
     (quotation
    simplified). DEQ presented several witnesses who testified
    regarding Onysko’s abusive conduct and its effect on DEQ
    morale and productivity, and “[t]he consensus of the witnesses
    was that [DEQ] morale was poor, that the poor morale was due
    to [Onysko’s] conduct, and that [DEQ] productivity and morale
    improved after [Onysko] left.”
    20180984-CA                    25               
    2020 UT App 51
    Onysko v. DEQ
    should not be taken.” Larsen v. Davis County, 
    2014 UT App 74
    ,
    ¶ 12, 
    324 P.3d 641
     (quotation simplified). In other words,
    “minimum due process entitles an employee to oral or written
    notice of the charges, an explanation of the employer’s evidence,
    and an opportunity for the employee to present his or her side of
    the story in something less than a full evidentiary hearing.”
    Lucas v. Murray City Civil Service Comm’n, 
    949 P.2d 746
    , 753 (Utah
    Ct. App. 1997) (quotation simplified). The purpose of the
    pre­termination hearing is to “serve[] as an initial check against
    mistaken decisions—essentially, a determination of whether
    there are reasonable grounds to believe that the charges against
    the employee are true and support the proposed action,” Larsen,
    
    2014 UT App 74
    , ¶ 16 (quotation simplified), and the notice
    should be sufficiently specific so as to provide the employee an
    adequate opportunity to prepare for and respond to the
    employer’s allegations in the pre-termination hearing, cf. Fierro v.
    Park City Mun. Corp., 
    2012 UT App 304
    , ¶ 19, 
    295 P.3d 696
    (providing that the same is required for post-termination
    hearings).
    ¶42 To successfully challenge a termination on due process
    grounds, the employee must not only identify the procedural
    errors that deprived the employee of due process but must also
    “establish how these procedural errors were harmful,” Lucas, 
    949 P.2d at 755
    , i.e., that there is a “reasonable likelihood that the
    error affected the outcome of the proceedings,” 17 Smith v.
    17. Onysko’s reliance on Salt Lake City Corp. v. Gallegos, 
    2016 UT App 122
    , 
    377 P.3d 185
    , for the proposition that an appellate court
    “must set aside the [reviewing agency’s] decision if it strays from
    considering the charges contained in the termination notice,” id.
    ¶ 11 (emphasis added) (quotation otherwise simplified), is
    misplaced. This case, unlike Gallegos, is governed by UAPA, see
    id. ¶ 8, which authorizes appellate courts to grant relief only
    when the petitioner “has been substantially prejudiced” by an
    (continued…)
    20180984-CA                     26                
    2020 UT App 51
    Onysko v. DEQ
    Department of Workforce Services, 
    2010 UT App 382
    , ¶ 17, 
    245 P.3d 758
     (quotation simplified). See Utah Code Ann. § 63G­4­403(4)
    (LexisNexis 2019) (permitting an appellate court to grant relief
    only if it determines the petitioner “has been substantially
    prejudiced” by certain enumerated errors).
    ¶43 Onysko raises two instances of alleged violations of his
    due process rights: (A) when the CSRO Decision relied on
    reasons not communicated to him prior to his dismissal to
    uphold DEQ’s decision and (B) when the CSRO Decision
    concluded that he had received adequate pre­termination notice
    of the reasons for his dismissal. We address each contention in
    turn.
    A.    Reliance on Reasons Not Communicated to Onysko Prior
    to Termination
    ¶44 Onysko argues that in affirming his termination, the
    Hearing Officer erred in “expressly rel[ying] on reasons of which
    [he] was given no notice prior to being terminated.” Onysko
    argues that because DEQ was required to “notify [him] in
    writing of the specific reasons for the proposed dismissal,” see
    Utah Admin. Code R477­11-2(2)(a), and because “[t]he only
    written notice of termination reasons [he] received before being
    terminated was the Intent to Dismiss[,] . . . the Hearing Officer
    was limited to considering evidence respecting the reasons
    offered in the ‘four corners’” of the letter.
    ¶45 The specific reasons for his termination that Onysko
    challenges are (1) that he left a copy of his GRAMA requests on
    Supervisor’s desk; (2) that he failed to follow the 2016 Warning’s
    (…continued)
    enumerated error, Utah Code Ann. § 63G­4­403(4) (LexisNexis
    2019). Accordingly, UAPA, and not Gallegos, governs our review
    in this case.
    20180984-CA                    27               
    2020 UT App 51
    Onysko v. DEQ
    six directives; (3) that his written comments to his performance
    evaluation caused Supervisor “intimidation, humiliation, or
    unwarranted distress”; (4) the fifth, sixth, and seventh
    allegations addressed in the Investigation Report; (5) that morale
    and productivity at DEQ had improved after he left DEQ;
    (6) that he “entered coworkers’ project files, despite not having
    review authority over those projects or any other legitimate need
    to do so”; and (7) that he told DHRM Representative that “he
    was going to file a criminal complaint regarding the manner in
    which the Intent to Reprimand . . . had been delivered to him.”
    We decline to disturb the CSRO Decision on any of these
    grounds. 18
    ¶46 First, Onysko argues that the Hearing Officer’s reliance
    on his unnecessary delivery of GRAMA requests to Supervisor
    was improper because he “had no pre-termination notice of
    these allegations.” But the Intent to Dismiss did discuss
    the Investigation Report’s substantiation of the allegation that
    he “used the normally unobjectionable activities of filing
    GRAMA requests to intentionally intimidate and cause
    unwarranted distress to . . . [S]upervisor.” Onysko has not
    argued how this notice prevented him from sufficiently
    preparing for his meeting with Executive Director on August 1,
    2017, which served as the pre-termination hearing for due
    process purposes. See Utah Admin. Code R477-11-2(2)(c).
    Indeed, although the Intent to Dismiss did not specifically name
    the act of delivering copies of the requests to Supervisor, Onysko
    18. Onysko also challenges the CSRO Decision’s discussion of his
    in-hearing conduct. But as discussed in Section I, the Hearing
    Officer did not exceed his discretion in considering Onysko’s
    in­hearing conduct, because the conduct was corroborative of
    other evidence that Onysko negatively affected DEQ morale and
    productivity—a ground for termination that the Intent to
    Dismiss did include.
    20180984-CA                    28               
    2020 UT App 51
    Onysko v. DEQ
    had actual notice of the specific allegation by virtue of his
    participation in the underlying investigation and incorporation
    by reference of the allegation via the reference in the Intent to
    Dismiss to the Investigation Report. 19 Supervisor alleged Onysko
    “left a copy of the GRAMA requests on her desk,” and Onysko
    had an opportunity to reply to the allegation. Onysko has not
    claimed that he was caught unaware that the unnecessary
    delivery of the GRAMA requests to Supervisor formed the basis
    of the allegation that he used the requests “to intentionally
    intimidate and cause unwarranted distress to . . . [S]upervisor”
    and that he was unable to adequately respond to the allegation
    19. Citing rule R477-11-2(2)(a)–(b) of the Utah Administrative
    Code, Onysko argues that “independent of the minimum
    requirements of due process, [he] was statutorily entitled to
    written notification of the specific reasons for his proposed
    termination and time to respond before that discipline was
    imposed.” Although he is generally correct in this respect, this
    court has already held that failure to strictly comply with
    procedure does not automatically equate to a due process
    violation. In Lucas v. Murray City Civil Service Commission, 
    949 P.2d 746
     (Utah Ct. App. 1997), this court held that although the
    employer “failed to strictly comply with its procedure” by not
    providing the employee with “written notification of the
    allegations,” “the fundamental requirements of due process
    were met” because the employee “did in fact have [actual] notice
    of the pending charges and was able to respond to the charges
    before the termination was implemented” and “he was afforded
    a pretermination hearing in which he specifically addressed each
    charge and the evidence against him.” 
    Id.
     at 754–55 (quotation
    simplified). Ultimately, “the essential requirements” of due
    process remain “notice and an opportunity to respond.” Larsen v.
    Davis County, 
    2014 UT App 74
    , ¶ 12, 
    324 P.3d 641
     (quotation
    simplified). These requirements were satisfied in the case at
    hand.
    20180984-CA                   29                
    2020 UT App 51
    Onysko v. DEQ
    during his meeting with Executive Director. See Lucas, 
    949 P.2d at 755
    . Accordingly, this allegation of a due process violation
    fails. See Hugoe v. Woods Cross City, 
    2013 UT App 278
    , ¶ 9, 
    316 P.3d 979
     (concluding petitioner received due process because he
    “had actual notice of the basis for the pre-disciplinary hearing,
    . . . failed to adequately allege any harm resulting from any
    deficiencies in the written notice, and was afforded a
    pre­disciplinary hearing in order to respond to the allegations
    against him”).
    ¶47 Second, Onysko challenges the Hearing Officer’s finding
    that he “‘ultimately failed to follow’ the ‘six specific directions’
    in the 2016 Warning.” But the Hearing Officer did not use this
    finding as a ground for termination. Rather, he specifically
    stated that Onysko’s “prior work record, including prior
    disciplinary actions, is relevant for the purpose of either
    mitigating or sustaining an agency’s disciplinary decision,” and
    he discussed this particular finding in that context. See Utah
    Admin. Code R137-1-21(9) (“In those proceedings where a
    disciplinary penalty is at issue, the past employment record of
    the employee is relevant for purposes of either mitigating or
    sustaining the penalty when substantial evidence supports an
    agency’s allegations.”). Because his failure to abide by the 2016
    Warning’s six directives did not form the basis for his
    termination, the finding did not implicate Onysko’s due process
    rights. 20 Cf. Hugoe, 
    2013 UT App 278
    , ¶ 10 (holding that the
    20. Onysko’s reliance on Fierro v. Park City Municipal Corp., 
    2012 UT App 304
    , 
    295 P.3d 696
    , is misplaced. Fierro set aside an
    appeal board’s decision upholding termination on the ground
    that the board “purported to uphold the termination” based on
    instances of misconduct not discussed in the Termination Memo,
    id. ¶ 27, as opposed to the pre-termination notice, and remanded
    for the board “to consider whether the one ground that fell
    within the scope of the Termination Memo . . . was sufficient to
    (continued…)
    20180984-CA                     30                
    2020 UT App 51
    Onysko v. DEQ
    appeal board did not violate due process when it heard evidence
    concerning an incident that did not appear in the
    pre­termination notice because the board did not rely on that
    incident and had an independent, properly­noticed ground upon
    which to uphold the petitioner’s termination).
    ¶48 And in any event, even if the Hearing Officer had
    considered Onysko’s failure to follow the six directives as a basis
    to uphold termination, such action would have been proper. The
    Intent to Dismiss did base its recommendation to dismiss
    Onysko on, among other things, the 2016 Warning. The letter
    further stated that “[t]he letters of warning and reprimand,”
    including the 2016 Warning, “were issued in a genuine effort to
    assist [Onysko] in modifying [his] behavior so that [he] could
    successfully carry out the mission and vision of [DDW],” but
    “[d]espite performance coaching and escalating disciplinary
    actions, [his] behavior ha[d] not improved.” Thus Onysko had
    an adequate opportunity to prepare for and respond to his
    (…continued)
    warrant Fierro’s termination,” id. ¶ 30. Here, the Hearing Officer
    expressly did not consider Onysko’s failure to abide by the six
    directives as a ground for termination. Additionally, as concerns
    Onysko’s other arguments, the Hearing Officer did not uphold
    his termination based on the fifth, sixth, and seventh allegations
    discussed in the Investigation Report but considered them as
    corroborating evidence of grounds set forth in the Intent to
    Dismiss. See infra ¶ 51. And similarly, the Hearing Officer
    considered evidence of improvement of productivity and morale
    in Onysko’s absence as confirmatory of DEQ’s allegation in the
    Intent to Dismiss that he negatively affected productivity and
    morale and not as a ground independent of this allegation. See
    infra ¶ 52. Moreover, because the Termination Letter did discuss
    the challenged corroborating evidence, Onysko was on notice to
    prepare to discuss that evidence at the CSRO hearing.
    20180984-CA                    31                
    2020 UT App 51
    Onysko v. DEQ
    failure to follow the 2016 Warning’s six directives in his meeting
    with Executive Director. 21
    ¶49 Third, Onysko argues that the Hearing Officer violated
    his due process rights when he determined that Onysko’s
    written comments in response to his performance evaluation
    caused Supervisor “intimidation, humiliation, or unwarranted
    distress.” Although the Intent to Dismiss identified a threat to “a
    supervisor over a performance evaluation,” Onysko argues that
    because the Intent to Dismiss referenced the Investigation Report
    in its discussion of this allegation and the Investigation Report
    substantiated that he verbally threatened Supervisor during a
    meeting and not by means of his written comments, he received
    notice only of the verbal threat. The Due Process Clause does not
    support such fine slicing and dicing. Onysko’s written and
    verbal threats to Supervisor in response to the
    room­for­improvement comment are so intertwined that we are
    doubtful that such a distinction is meaningful. In fact, the
    Investigation Report based its substantiation of the verbal threat
    “on a plain reading of the actual comments put into the
    performance evaluation in question,” concluding that “[t]he
    inclusion of those accusations in written form grants a great deal
    of credibility to [Supervisor’s] claim that the discussion in June
    2016 included this content.” 22
    21. And as a matter of fact, the Termination Letter discussed that
    during the meeting with Executive Director, Onysko objected “to
    the issuance of [the 2016] Warning.” This objection further
    supports the conclusion that Onysko was able to prepare to
    address the 2016 Warning and its six directives during the
    meeting.
    22. Although Onysko did not obtain a copy of the Investigation
    Report until October 2017—well after his August 1, 2017 meeting
    with Executive Director—Onysko has not alleged that the
    (continued…)
    20180984-CA                    32                
    2020 UT App 51
    Onysko v. DEQ
    ¶50 And in any event, Onysko has not explained how this
    alleged error was harmful. Although the Hearing Officer did
    discuss the impropriety of his written comments in the CSRO
    Decision, he also specifically found that Onykso “made similar
    comments in his meeting with [Supervisor] discussing the
    evaluation.” It is unlikely that the Hearing Officer would
    consider certain comments “highly inappropriate” only when
    written but not when verbalized. As such, it is similarly unlikely
    the outcome of the proceeding would have been different had
    the Hearing Officer considered the verbal threats instead of their
    written counterpart as a ground for termination. See Smith v.
    Department of Workforce Services, 
    2010 UT App 382
    , ¶ 17, 
    245 P.3d 758
    .
    ¶51 Fourth, Onysko challenges the CSRO Decision’s
    discussion of the fifth, sixth, and seventh allegations addressed
    by the Investigation Report, i.e., those allegations the
    Investigation Report concluded, although having occurred, did
    not amount to abusive conduct. But the Hearing Officer
    expressly stated in the CSRO Decision that he considered the
    fifth, sixth, and seventh allegations as “no more than
    corroboration of other evidence of [Onysko’s] conduct” and not
    as independent bases supporting his termination. See Utah
    Admin. Code R137­1­21(1)(g) (authorizing officers presiding
    over formal adjudicative proceedings to “admit evidence that
    has reasonable and probative value”). Cf. Becker v. Sunset City,
    
    2013 UT 51
    , ¶ 15, 
    309 P.3d 223
     (“[An] appeal board may consider
    (…continued)
    deficiency in any way affected his ability to discuss the Intent to
    Dismiss’s recommendation to terminate his employment with
    Executive Director. And the Investigation Report was provided
    to Onysko well in advance of the CSRO hearing, thereby
    permitting him to adequately prepare for that dispositive
    proceeding.
    20180984-CA                    33                
    2020 UT App 51
    Onysko v. DEQ
    . . . evidence related to the grounds for discharge for which the
    employee has received proper notice.”) (emphasis added). And
    although the Intent to Dismiss does not specifically reference the
    allegations, the Termination Letter does discuss them, thereby
    providing Onysko with notice and an opportunity to prepare to
    address the allegations during the CSRO hearing. In sum, the
    evidence was relevant to DEQ’s allegations that Onysko engaged
    in abusive conduct, he received sufficient notice to allow him to
    prepare to address the allegations in the formal adjudicative
    proceeding, and he has not asserted that the Intent to Dismiss’s
    failure to mention the allegations affected his ability to present
    his case during the August 1, 2017 meeting with Executive
    Director. Thus, the Hearing Officer did not violate Onysko’s due
    process rights in treating the allegations as corroborative
    evidence.
    ¶52 Fifth, Onysko contends that because the Intent to Dismiss
    did not mention that productivity and morale had improved
    since he had been placed on administrative leave, the Hearing
    Officer violated due process when he relied on “[t]he consensus
    of the witnesses . . . that [DEQ] productivity and morale
    improved after [Onysko] left.” This argument fails for much the
    same reason as Onysko’s fourth argument. The improvement to
    morale and productivity was relevant to DEQ’s allegation that
    Onysko’s misconduct negatively affected the same. The CSRO
    Decision did not discuss this evidence in terms of a new,
    independent ground to uphold his dismissal. And although the
    Intent to Dismiss did not mention the improvement, it devoted a
    significant portion of its discussion to the negative impacts of
    Onysko’s conduct on productivity and morale. Onysko has also
    not argued that the omission in the Intent to Dismiss prevented
    him from meaningfully presenting his case during his meeting
    with Executive Director, and the Termination Letter did discuss
    the improvement to DEQ productivity and morale after he left,
    thereby providing sufficient notice to enable him to prepare to
    address the evidence during the CSRO hearing.
    20180984-CA                    34               
    2020 UT App 51
    Onysko v. DEQ
    ¶53 Sixth, Onysko assails the Hearing Officer’s finding that he
    “entered coworkers’ project files, despite not having review
    authority over those projects or any other legitimate need to do
    so.” He contends that although the Intent to Dismiss stated that
    he “repeatedly researched and criticized other employees’
    projects and accused co-workers of incompetence,” “no
    reasonable person could glean from such statement that [he] was
    being accused of entering his fellow engineers’ project files
    without authorization.” But even assuming, without deciding,
    that Onysko is correct in this regard, this argument is unavailing
    because Onysko has not shown a “reasonable likelihood that the
    error affected the outcome of the proceedings.” See Smith, 
    2010 UT App 382
    , ¶ 17 (quotation simplified).
    ¶54 The CSRO Decision briefly mentioned Onysko’s
    unauthorized entry into coworkers’ work files as evidence to
    support its conclusion that “[s]ubstantial evidence supports the
    conclusion that [Onysko’s] conduct adversely affected [DEQ]
    customers, productivity, and morale.” This conclusion was
    further supported by evidence that Onysko’s coworkers “were
    ‘on guard’ against [him] and regularly took extra time to
    over­document their work,” that they “were concerned that they
    would be the next target of [his] allegations of unprofessional
    conduct or violation of the professional engineers’ code of
    ethics,” that “productivity and morale improved after [he] left
    [DEQ],” and that his “usual reaction to any criticism or
    disagreement was to threaten the other person’s professional
    license.” 23 And the Intent to Dismiss gave Onysko adequate
    notice that the effect of his misconduct on DEQ morale and
    productivity was one of the reasons for his dismissal, discussing
    23. Claiming residuum rule violations, Onysko argues that the
    Hearing Officer erred in considering much of this additional
    evidence. But, as discussed in Section III, those claims of error
    are likewise unavailing.
    20180984-CA                    35               
    2020 UT App 51
    Onysko v. DEQ
    in detail how Onysko’s conduct “caused burdensome delays in
    [DDW] processes and damage to the morale within [DDW].”
    Thus, because his alleged unauthorized entry into coworkers’
    files was probative of the effect of his misconduct on DEQ
    productivity and morale—a ground for termination of which
    both the Intent to Dismiss and Termination Letter provided
    notice—and because ample other evidence supported this
    ground, it is unlikely the CSRO Decision would not have
    substantiated this ground for termination had the challenged
    evidence not been before the Hearing Officer.
    ¶55 Lastly, Onysko argues he was deprived of due process
    when the Hearing Officer found that he told DHRM
    Representative “he was going to file a criminal complaint
    regarding the manner in which the [Intent to Reprimand] had
    been delivered to him.” He contends that the Intent to Dismiss’s
    statement that he “threatened to file criminal charges in response
    to standard management practices” “is not clear and specific as
    required,” because “[n]o reasonable person could glean from
    such a statement that [he] was being accused of threatening to
    file a criminal complaint about the manner in which he received
    the Intent to Reprimand.” But he omits that the Intent to Dismiss
    stated that the Investigation Report, with our emphasis,
    “substantiated that [he] threatened to file criminal charges in
    response to standard management practices.” Because the threat
    was discussed in the context of the Investigation Report and
    because Onysko had actual notice of that allegation by virtue of
    his participation in the underlying investigation, 24 we reject
    Onysko’s contention that the notice was inadequate. See Hugoe v.
    Woods Cross City, 
    2013 UT App 278
    , ¶ 9, 
    316 P.3d 979
    . The
    24. Specifically, during the investigation, Onysko “denie[d]
    making any threat or representation that he would file a criminal
    complaint regarding issuance of the Intent to [Reprimand]
    issued on December 16, 2016.”
    20180984-CA                    36               
    2020 UT App 51
    Onysko v. DEQ
    Hearing Officer therefore was not precluded from considering
    that event as a ground supporting DEQ’s termination decision.
    B.    Pre­termination Notice
    ¶56 Onysko argues that the Hearing Officer also erred in
    concluding he received adequate pre-termination notice because
    he “did not receive written, clear, and specific pre-termination
    notice” of the above challenged evidence. But the Hearing
    Officer specifically found that “during his August 1, 2017
    meeting with [Executive Director], [Onysko] was able to present
    his reasons and arguments why his employment should not be
    terminated.” Indeed, during that two-hour meeting, Onysko was
    represented by counsel and presented over 162 pages of
    documents in support of his position. And in his petition for
    judicial review, Onysko has not challenged the Hearing Officer’s
    finding or even asserted that the alleged inadequacies in the
    Intent to Dismiss in any way inhibited him from presenting his
    case during the meeting.
    ¶57 This finding is fatal to Onysko’s pre-termination due
    process argument for two reasons. As an initial matter, the
    finding is detrimental to his claim that the Intent to Dismiss was
    not sufficiently specific. As discussed above, the notice need only
    be sufficiently specific to provide the employee an adequate
    opportunity to prepare for and respond to the employer’s
    allegations in the pre-termination hearing. Cf. Fierro v. Park City
    Mun. Corp., 
    2012 UT App 304
    , ¶ 19, 
    295 P.3d 696
     (providing that
    the same is required for post-termination hearings). It therefore
    follows that if Onysko was able to adequately respond to DEQ’s
    allegations during his meeting with Executive Director, the
    Intent to Dismiss served as sufficiently specific notice of those
    allegations.
    ¶58 Onysko’s argument likewise fails because reviewing
    courts may not set aside agency decisions absent a showing of
    substantial prejudice. See Utah Code Ann. § 63G­4­403(4)
    20180984-CA                    37                
    2020 UT App 51
    Onysko v. DEQ
    (LexisNexis 2019). See also Lucas v. Murray City Civil Service
    Comm’n, 
    949 P.2d 746
    , 755 (Utah Ct. App. 1997) (stating that the
    employee must explain how the alleged “procedural errors were
    harmful” in order to establish a due process violation). In other
    words, Onysko was required to demonstrate “that there is [a]
    reasonable likelihood that the error affected the outcome of the
    proceedings.” Smith v. Department of Workforce Services, 
    2010 UT App 382
    , ¶ 17, 
    245 P.3d 758
     (quotation simplified). And Onysko
    cannot make this showing without challenging the Hearing
    Officer’s finding, which he has not done.
    ¶59 Accordingly, for these reasons and those discussed in
    Section II(A), we reject Onysko’s argument that the Intent to
    Dismiss violated his due process rights.
    III. Residuum Rule
    ¶60 Hearsay is an out-of-court statement offered “to prove the
    truth of the matter asserted.” Utah R. Evid. 801(c). Although
    officers presiding over formal adjudicative proceedings “may
    not exclude evidence solely because it is hearsay,” Utah Code
    Ann. § 63G-4-206(1)(c) (LexisNexis 2019), they nonetheless may
    not base a contested finding of fact “solely on hearsay evidence
    unless that evidence is admissible under the Utah Rules of
    Evidence,” id. § 63G-4-208(3). This principle has come to be
    known as the residuum rule. See Aura Spa & Boutique v.
    Department of Workforce Services, 
    2017 UT App 152
    , ¶ 11, 
    402 P.3d 813
    .
    ¶61 Onysko alleges that eight of the Hearing Officer’s findings
    of fact were “based exclusively on inadmissible hearsay,” in
    violation of the residuum rule. We address each in turn.
    A.    A Coworker Expressed Fear of Retaliation
    ¶62 First, Onysko argues that the Hearing Officer erroneously
    relied on the Investigation Report to find, in a footnote, that a
    20180984-CA                   38                
    2020 UT App 51
    Onysko v. DEQ
    certain coworker “express[ed] concern that [Onysko] might
    retaliate against him for his participation in th[e] investigation”
    of Supervisor’s abusive conduct complaint. Because that
    coworker never testified at the hearing, Onysko contends that
    this “finding” was solely based on the DHRM investigator’s
    (Investigator) statement in the Investigation Report. But this first
    “finding” that allegedly violates the residuum rule is not, as
    Onysko contends, a finding of fact.
    ¶63 As an initial matter, it does not appear in the “Findings of
    Fact” section of the CSRO Decision. Instead, it is in the
    “Subsidiary and Procedural Issues” section in the context of
    discussing a procedural matter that arose during the hearing:
    Onysko’s motion to compel the attendance and testimony of the
    coworker. The Hearing Officer denied this motion on the sixth
    day of the hearing on the ground that, in addition to the
    anticipated testimony being cumulative and immaterial, the
    coworker’s “testimony would likely be unreliable.” And the
    footnote’s purpose was to explain the Hearing Officer’s
    determination that the testimony would likely prove unreliable.
    Specifically, the footnote states that the coworker “sent an email
    to the [CSRO] requesting that he not be called to testify as he
    believed [Onysko] would retaliate against him if his testimony
    was unfavorable.” The footnote then expressly stated that the
    “email is not evidence and the Hearing Officer did not consider
    [the] email in deciding this case.”
    ¶64 The footnote also added that the coworker “is recorded
    [in the Investigation Report] as expressing concern that [Onysko]
    might retaliate against him for his participation in that
    investigation.” This sentence forms the basis of Onysko’s
    allegation of error. But the remainder of the CSRO Decision
    makes no mention whatsoever of the coworker or of his fear of
    retaliation by Onysko. It played no role in the CSRO Decision’s
    ultimate affirmance of DEQ’s decision to dismiss Onysko.
    Accordingly, we conclude the CSRO Decision’s mention that the
    Investigation Report indicated that the coworker feared
    20180984-CA                     39                
    2020 UT App 51
    Onysko v. DEQ
    retaliation was limited simply to the context of the procedural
    matter of Onysko’s motion to compel and does not amount to a
    finding of fact, much less one based only on inadmissible
    hearsay.
    B.    Onysko Left His GRAMA Requests on Supervisor’s Desk
    ¶65 Second, Onysko alleges that the Hearing Officer
    erroneously found that he left copies of GRAMA requests on
    Supervisor’s desk because the “finding was based exclusively on
    [Investigator’s] testimony about what [Supervisor] supposedly
    told him.” Although Supervisor testified at the hearing, neither
    Onysko nor DEQ asked her whether Onysko left the GRAMA
    requests on her desk. 25 But even assuming, without deciding,
    that this finding was solely based on hearsay, Onysko was not
    “substantially prejudiced” by the error. See Utah Code Ann.
    § 63G-4-403(4) (LexisNexis 2019).
    ¶66 “A party has been substantially prejudiced if the alleged
    error was not harmless.” Utah Office of Consumer Services v. Public
    Service Comm’n, 
    2019 UT 26
    , ¶ 17, 
    445 P.3d 464
     (quotation
    simplified). An error is “harmless if it is sufficiently
    inconsequential that there is no reasonable likelihood that the
    error affected the outcome of the proceedings.” Smith v.
    Department of Workforce Services, 
    2010 UT App 382
    , ¶ 17, 
    245 P.3d 758
     (quotation simplified).
    25. Curiously, in its written “Closing Argument,” without
    reference to Supervisor’s testimony, DEQ stated that Supervisor
    “did not recall [Onysko] placing a copy of the request on her
    desk.” And in his motion for a mistrial, Onysko argued that
    “[t]his eleventh hour revelation by [DEQ’s] Counsel is
    shocking,” warranting a mistrial. It is unclear on what DEQ
    based this comment. It appears to be a mistake rather than a
    considered concession.
    20180984-CA                    40                
    2020 UT App 51
    Onysko v. DEQ
    ¶67 Here, the CSRO Decision includes the finding that
    Onysko “did inform [Supervisor] that the GRAMA requests
    were filed, and it is more likely than not that he did so by
    leaving a copy of the requests on her desk.” But it was based on
    “the unnecessary notification of [Supervisor]” of his GRAMA
    requests that the Hearing Officer concluded that Onysko
    “intended to [and did] cause [Supervisor] ‘intimidation,
    humiliation, or unwarranted distress,’” thereby supporting, by
    substantial evidence, that Onysko’s “conduct constituted
    abusive conduct.” In other words, it was the unnecessary
    notification of Supervisor—not the manner of the notification—
    on which the Hearing Officer based his conclusion that Onysko
    had engaged in abusive conduct toward Supervisor. And the
    conclusion that Onysko unnecessarily notified Supervisor of his
    GRAMA requests is supported by, at the very least, a residuum
    of non-hearsay evidence.
    ¶68 Specifically, because Supervisor amended her abusive
    conduct complaint against Onysko on February 15, 2017, to
    include his filing of GRAMA requests, the Hearing Officer
    concluded that she must have known “no later than at least
    February 15, 2017, that [Onysko] had filed the GRAMA records
    requests.” And because “normal procedures would not have
    required that [Supervisor] be notified of the request at all,” the
    Hearing Officer inferred, with our emphasis, “that [Onysko]
    notified [Supervisor], in one way or another, that the requests had
    been filed.” 26 For this reason, even if the Hearing Officer
    26. The Hearing Officer also relied on Supervisor’s testimony
    that Onysko’s “conduct towards her between September and
    December 2016 was ‘hostile’” and Onysko’s “history of filing, or
    threatening to file, actions against individuals with whom he
    disagreed or against their professional licenses.” The latter is the
    subject of Onysko’s third allegation of a residuum rule violation.
    See Section IV(C).
    20180984-CA                     41                
    2020 UT App 51
    Onysko v. DEQ
    erroneously found that the manner in which Onysko
    unnecessarily notified Supervisor of the GRAMA requests was
    to leave copies of the requests on Supervisor’s desk, such error
    was “sufficiently inconsequential” to render it harmless. Smith,
    
    2010 UT App 382
    , ¶ 17 (quotation simplified).
    C.     Onysko’s History of Filing or Threatening to File
    Complaints
    ¶69 Third, Onysko asserts that the Hearing Officer “erred in
    making findings about a ‘history’ of filings against many
    ‘individuals with whom [Onysko] disagreed’ based only on a
    singular filing that may have been entirely appropriate.” He
    argues that because Supervisor was the only witness to testify
    “regarding . . . Onysko’s filing of a DOPL complaint and no
    evidence was introduced as to the propriety of that complaint,”
    “[t]he only evidence of other complaints was hearsay without
    detail.”
    ¶70 But in making this argument, Onysko overlooks several
    other complaints he made, concerning which the Hearing Officer
    received evidence, that support the finding that he had a history
    of filing or threatening to file complaints against others. For
    example, (1) DHRM Representative testified that Onysko “told
    [her] that he had filed a criminal complaint against [her] for the
    way that the [Intent to Reprimand] . . . was given to [him]”; (2) in
    his written proffer to the Hearing Officer, Onysko acknowledged
    that he filed an OSHA complaint against DEQ, which OSHA
    ultimately dismissed as unmeritorious; (3) Onysko filed an
    abusive conduct complaint against Supervisor, which was also
    quickly dismissed; and (4) Onysko’s written responses to
    Supervisor’s need­for­improvement comment could reasonably
    be perceived as threatening. 27 We therefore reject Onysko’s
    27. Additionally, the Hearing Officer personally observed
    Onysko threaten to file a complaint with the Utah State Bar
    (continued…)
    20180984-CA                     42                
    2020 UT App 51
    Onysko v. DEQ
    contention that “[t]he only evidence of other complaints was
    hearsay without detail.”
    D.    The Effect of Onysko’s Conduct on Coworkers and DEQ
    Customers
    ¶71 Onysko’s final five arguments all relate to findings the
    Hearing Officer relied on in determining that “[s]ubstantial
    evidence supports the conclusion that [Onysko’s] conduct
    adversely affected [DEQ] customers, productivity, and morale”:
    1. He contends that the Hearing Officer erred
    in relying     on Executive     Director’s
    “testimony that he received complaints
    about . . . Onysko from ‘two DEQ
    customers’ and ‘several staff members.’”
    Because “no such customers[28] or staff
    members     testified  about    submitted
    complaints,” Onysko asserts Executive
    Director “acted as a conduit to relay
    customers’ and staff members’ personal
    knowledge.”
    (…continued)
    against DEQ’s counsel in response to counsel’s statement in a
    motion to compel that Onysko requested a stay of discovery “in
    part to avoid responding to the discovery requests,” which the
    Hearing Officer considered “a reasonable interpretation of the
    circumstances and unremarkable in argument to a motion to
    compel.” And the Hearing Officer observed that Onysko
    continued “to allege professional misconduct and untruthfulness
    by [DEQ’s] counsel throughout [the] proceeding.”
    28. Onysko is incorrect in this regard. At least one DEQ customer
    testified regarding a letter of complaint he submitted to DEQ.
    20180984-CA                   43                
    2020 UT App 51
    Onysko v. DEQ
    2. He assails the finding that “[o]ther DDW
    engineers were ‘on guard’ against [Onysko]
    and regularly took extra time to
    over­document their work, which resulted
    in a loss of productivity.” He asserts that
    because “none of [the] supposedly ‘on
    guard’ engineers testified,” and because
    “this finding was based solely on
    [Supervisor’s] testimony,” the Hearing
    Officer “erred in making findings about the
    mental state of other DEQ engineers of
    which [Supervisor] had no personal
    knowledge.”
    3. He argues that the Hearing Officer
    erroneously      found     that     Onysko’s
    “[c]oworkers were concerned that they
    would be the next target of [Onysko’s]
    allegations of unprofessional conduct or
    violation of the professional engineers’ code
    of ethics,” because “this testimony was
    offered by [Supervisor] who had no
    personal knowledge of the mental states of
    other DEQ coworkers.”
    4. He asserts the Hearing Officer erred in
    finding that his “demeanor and conduct
    made it difficult for coworkers or
    customers to work collaboratively with
    him,” because “none of these alleged
    coworkers and customers testified.” Instead,
    the director of DDW, “act[ing] as a
    conduit to relay those workers’ and
    customers’ personal knowledge,” testified to
    this fact.
    20180984-CA                 44               
    2020 UT App 51
    Onysko v. DEQ
    5. He alleges the Hearing Officer erred in
    relying on Executive Director’s testimony
    “that morale was low” because “not a single
    witness testified that his or her morale was
    low” as a result of Onysko’s conduct and
    Executive Director therefore “acted as a
    conduit to relay the personal knowledge of
    others.”
    ¶72 But even assuming that the above-challenged findings of
    fact are based solely on the testimonies of Executive Director,
    Supervisor, and the director of DDW, as Onysko asserts, his
    argument necessarily fails because he has not met his burden of
    persuasion in this proceeding for judicial review. Specifically,
    Onysko’s argument is devoid of any meaningful analysis as to
    whether the evidence upon which the challenged findings are
    allegedly based is truly hearsay, and if so, inadmissible hearsay.
    ¶73 The relevant inquiries when determining if certain
    evidence constitutes hearsay are whether (1) the challenged
    evidence is a statement (2) by an out-of-court declarant (3) that is
    offered “to prove the truth of the matter asserted.” Utah R. Evid.
    801(c). Onysko does not address any of these factors when
    challenging the witnesses’ testimony on hearsay grounds.
    Rather, he bases his claim of hearsay solely on the ground that
    the witnesses allegedly lacked personal knowledge of the
    subjects to which they testified. But this argument invokes rule
    602 of the Utah Rules of Evidence and not rule 801, 29 see 
    id.
     R. 602
    29. Onysko quotes State v. McNeil, 
    2013 UT App 134
    , 
    302 P.3d 844
    , aff’d, 
    2016 UT 3
    , 
    365 P.3d 699
    , for the proposition that
    “hearsay is generally inadmissible because the witness is acting
    as a conduit to relay the personal knowledge or observations of
    others.” Id. ¶ 44 (quotation simplified). But the language quoted
    does not define hearsay or discuss the inquiry courts engage in
    (continued…)
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    Onysko v. DEQ
    (stating that a fact witness “may testify to a matter only if . . . the
    witness has personal knowledge of the matter”), and rule 602 is
    immaterial in the residuum-rule context.
    ¶74 Without the benefit of focused analysis on whether the
    evidentiary bases of the challenged findings constitute
    inadmissible hearsay, we decline to further address these
    challenges. See Utah R. App. P. 24(a)(8) (requiring a party on
    appeal to “explain, with reasoned analysis supported by
    citations to legal authority and the record, why the party should
    prevail on appeal”); Allen v. Friel, 
    2008 UT 56
    , ¶ 9, 
    194 P.3d 903
    .
    CONCLUSION
    ¶75 We conclude that the Hearing Officer did not (1) exceed
    his discretion in using his experience and observations of
    Onysko’s conduct during the course of the extensive seven-day
    hearing as corroborative of the testimonies of DEQ’s witnesses,
    (2) violate due process in considering certain evidence, or
    (3) violate the residuum rule in making various findings.
    Accordingly, we decline to disturb the CSRO Decision.
    (…continued)
    when making hearsay determinations. Rather, it merely
    expresses one of the reasons why “[h]earsay is generally
    inadmissible.” 
    Id.
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