MAYO JASON

From: LO KELVIN

Sent: Thursday, February 26, 2026 8:09 AM

To: HASSABOU MO; MAYO JASON; PATERSON ROB
Subject: RE: WorkSafeBC: IR202618842990A

Categories: Yellow category

Hello Rob and Jason,

In addition, if we need to do an 8-hour TWA measurement with a SLM that can do time logging, we do have one in
our backroom, but it is out of calibration.

We do have a contract with Pine right now, and they may be able to calibrate it for us, or we can rent one from
them.

Thanks,

KELVIN LO

Railway Safety Specialist
Railway Safety and Security
P: 604-218-0128

E: kelvin lo@bertc.be.ca

BC Rapid Transit Company (BCRTC)
6800 14th Ave, Burnaby, BC V3N 4S7, Canada

JT Together alt the way

From: LO KELVIN

Sent: February 26, 2026 7:59 AM

To: HASSABOU MO <MOHAMED_HASSABOU @bcrtc.bc.ca>; MAYO JASON <JASON_MAYO@BCRTC.BC.CA>; PATERSON
ROB <ROB_PATERSON@BCRTC.BC.CA>

Subject: RE: WorkSafeBC: IR202618842990A

Hello Rob and Jason,

Please see the email sent to Ron after our spot sampling.

Details of the device used:
Extech 407732 Type 2 Sound Level Meter

The instrument was calibrated right before the testing with the Extech 407722 Sound Level Calibrator

Not sure if we should input this information into a proper format rather than an email. Let me know if you need
further help on this.

Thanks,

000189