The internal RSS department conducted preliminary spot sampling on January 23, 2026, around the
workstation and adjacent server rack:

Location / Condition Measured Noise Level
Workstations 56-58 dBA

Ambient environment (typical) 50-70 dBA

Room silent (no communication) 50 dBA

Room peak during active communication | Up to 70 dBA

Server rack behind workstation 62-65 dBA
CEL for reference 85 dBA TWA (8-hour limit)
Key Finding:

All values were well below the 85 dBA 8-hour TWA limit, even though the sampling was not over a
full shift. Noise levels inside the room were consistent with normal office or equipment room
environments.

5. Third-Party Noise Assessment: Acrose Consulting Ltd.

BCRTC commissioned Acrose Consulting Ltd. to complete an independent noise survey. The full
report will be attached in the official submission. Their work included:

e Spot noise measurements
e Long-term data logging
e Noise mapping of the room
e Final report with recommendations
5.1. Summary of Acrose Findings
Initial spot measurements:
e Highest reading in the training simulation room: 65.7 dBA
e Peak level recorded: 89.3 dBC
Data-logged measurement (7:34 AM - 4:12 PM; 8h 38m):
e Projected 10-hour TWA: 57.6 dBA

e Maximum recorded peak: 86.7 dBC