EXHIBIT L (1 of 4)

INCIDENT TIMELINE — MARK HOLAND

WorkSafeBC Claim 42647461 — BCRTC OMC1 Acoustic Injury — January 12, 2026
Updated: March 13, 2026

Date Event Notes

JANUARY 2026.— INJURY AND INITIAL RESPONSE

Jan 12 First Exposure Moved from rail maintenance to Control Training Room.
Workstation 3 directly in front of 2 refrigerator-sized server
racks. Noise makes it hard to understand instruction. 10hrs per
day, 4 days a week.

Jan 19 First Symptoms Decreased effectiveness of migraine reduction program. Small,
persistent headaches. Loss of sleep.
Jan 22 Safety Concern Filed MyHSE #75625. Identified server noise as hazard at
Filed Workstation 3. Disclosed personal vulnerability to excessive
noise. Explicitly requested servers be moved. Filed before worst
symptoms began.
Jan 23 First Ear Pain First stabbing pain in left ear, lesser pain in right. Reported to
instructor. Multi-day migraines begin. Sleep loss intensifies.
Jan 25 Emergency #1 Royal Columbian Hospital. 4pm-10pm. Ruled out infection. No
diagnosis. Notified instructor sick day required.
Jan 26 First Reportable First reportable workplace injury in 25 year heavy industry
Injury career — tower rigging, 16 years CN Rail, BCRTC. Too

exhausted to attend class. Headaches and ear pain persist.

Jan 27 Return to Work Refused Workstation 3. Must use instructor's workstation —
limited simulator access. Ears sensitized. Even 20ft from server
causes ear pain. Wearing earplugs when practicable.

Jan 27 Safety Concern Meeting with Austin Puder and Breanne Douglas. Union rep
Dismissed Rabjit Bul present. Told sound levels below 85dB. Manager
stated: ‘If you can't deal with some server noise, maybe you
can't work in control, as alarms reach 75dB.' No accommodation
offered. No EFAP referral. Told to take it to WorkSafe.

Jan 28 Sound Recorded sound with phone mic, then external USB condenser
Investigation mic to obtain better samples.
Jan 29 Final Brought laptop and USB condenser mic. Used Audacity to
Investigation record and analyse sound. Identified 328Hz mechanical
resonance.
Jan 29 Written Exam / Completed 3-hour written Control Operator examination — 89%
Half Day score — while symptomatic. Left at 1pm due to physical

exhaustion, headache, and ear pain after exam. Not a sick day
— exam completed. Worked on WorkSafeBC unsafe workplace
report until 10pm. Total mental and physical exhaustion.

Jan 29 Unsafe Workplace WorkSafeBC unsafe workplace report filed January 29 — before
Report Filed January 30 emergency visit and before official injury claim. Prior
notice to WorkSafeBC established before worst symptoms.
began.