WORKING TO MAKE A DIFFERENCE

Memo
(continued)

Worker last name First name Middle initial WorkSafeBC claim number
HOLAND MARK 42647461

acoustic source as industrial server racks, addresses Tonic Tensor Tympani
Syndrome as the relevant injury mechanism, evaluates the clinical
significance of asymmetric threshold shift at 8kHz in the context of laterality
and frequency specificity, considers the limitations of broadband A-weighted
measurement methodology for frequency-specific acoustic pathology
assessment, and accurately represents the worker's medical history without
mischaracterization.

3. Place this rebuttal on my claim file as formal evidence prior to any final
adjudication decision.

4. Suspend the denial decision pending receipt of my independent audiological
assessment from Wavefront Hearing scheduled for March 25, 2026.

5. Confirm in writing that this rebuttal has been received and placed on my
claim file.

6. Provide me with the name and contact information of the WorkSafeBC
medical advisor responsible for reviewing this claim so that | may ensure my
complete clinical record is before the appropriate reviewer.

Sincerely,
Mark Holand WorkSafeBC Claim #42647461 236-994-3376 |
marktholand@gmail.com March 20, 2026

From: mark holand <marktholand@gmail.com>

Sent: Friday, March 20, 2026 3:21 PM

To: Cassady, Jaylin <Jaylin.Cassady@worksafebc.com>

Subject: Formal Response to Clinical Opinion — WorkSafeBC Claim #42647461 —
Flora Pang M.Sc. RAUD Aud(C)

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Subject: Formal Response to Clinical Opinion — WorkSafeBC Claim
#42647461 — Flora Pang M.Sc. RAUD Aud(C)

Dear Ms. Cassady,

| am writing in formal response to the Clinical Opinion dated March 20, 2026,
prepared by Flora Pang M.Sc., RAUD, Aud(C).

The clinical opinion contains a foundational error that invalidates its conclusions.
Error 1 — Misidentification of the acoustic source.

The mechanism of injury is described throughout as exposure to computer fans.
The acoustic source at Workstation 3 was not computer fans. It was two floor-
mounted industrial server racks — photographed January 29, 2026, documented in
my Acoustic Trauma Brief filed the same day, referenced in BCRTC's own
investigation report, and assessed by Arcose Consulting Ltd. on March 6, 2026.
Industrial server racks and computer fans are categorically different acoustic
sources with different frequency profiles, different resonance characteristics, and
different physiological effects. Every comparison made in this clinical opinion — to
BC Ferry data centers, hospital computer processing areas, office environments,
and average conversation — is based on the wrong source.

68B33

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