Workplace Noise Surveys and Noise Exposure Measurement

Full-shift noise dosimetry and area sound level measurement at your worksite, across the Lower Mainland and Fraser Valley. We measure what your workers are actually exposed to, and give you a report you can file.

Minimum 5 people per visit. Our on-site services are booked for groups of 5 or more; we do not offer single-person visits.

Noise measurement on site by Clear Work in British Columbia employers
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100+ BC Employers Served
Why Noise Measurement Matters

Noise Measurement Is Where a Hearing Conservation Program Starts

Almost every other duty in Part 7 depends on knowing your actual noise levels. You cannot choose the right class of hearing protection, decide where a noise hazard area begins, design engineered controls, or work out which workers need annual hearing tests without numbers. Common reasons employers call us:

  • A WorkSafeBC officer has asked for noise exposure data
  • New equipment, a new line, or a new building layout
  • Workers questioning whether their protection is adequate
  • A hearing conservation program that has never had measurement behind it
  • Wanting to establish which workers are genuinely below the exposure limit

Section 7.2 sets two exposure limits, and an employer must ensure workers are not exposed above either one: an 85 dBA Lex daily noise exposure level, and a 140 dBC peak sound level. The first is an average across the working day; the second is a single loud event, measured at its peak.

Under section 7.3(1), an employer must measure worker noise exposure where a worker is or may be exposed to potentially harmful levels of noise, or where information indicates exposure may exceed 82 dBA Lex. That sits below the 85 dBA Lex limit — the duty to measure starts before you are over the line.

There is an alternative, and we would rather tell you about it than not. Section 7.4 removes the duty to measure where the employer, based on other information, identifies the worker as being exposed in excess of an exposure limit and establishes an effective noise control and hearing conservation program for that worker. Note what that costs: it is an evidence-based identification rather than a free election, and the program it commits you to includes engineered noise control, not just hearing tests and earplugs. Measuring is worth it when you want to know who is genuinely below the limits, size hearing protection to the actual level, or show an officer real numbers instead of an assumption.

One limitation we would rather state up front: full-shift dosimetry establishes daily exposure against the 85 dBA Lex limit. Impact noise measured against the 140 dBC peak limit is a separate question, and we will tell you which of the two a given survey addresses.

For the wider picture, we set out the WorkSafeBC hearing testing and noise requirements in full, straight from the regulation.

Sound level meter reading 91 decibels beside industrial ventilation plant
What's Included

What a Noise Survey Gives You

Full-shift personal dosimetry and area readings, using methods based on CSA Standard Z107.56, with calibration recorded and results documented for your program file.

Full-Shift Dosimetry

Personal noise dosimeters worn across a real working shift, so the numbers reflect the job as it is actually done.

Area Mapping

Sound level meter readings across the site, so you can decide where hearing protection is needed and where signs should go if section 7.7 applies to you.

Documented Results

Measured levels, the sampling method, and field calibration records. Section 7.9(c) requires you to keep the results of noise measurements taken under 7.3 — we give you those results in a form you can keep.

Why Partner With Us

Why BC Employers Choose Clear Health Group

We are a mobile occupational health team already on industrial sites across the Lower Mainland and Fraser Valley. Noise measurement sits alongside our on-site hearing testing and custom-fitted hearing protection, so one provider covers the measurement, the testing it triggers, and the protection it justifies. We reply to quote requests within 1 business hour.

Measurement That Reflects the Real Job

Full-shift dosimetry on workers doing their actual tasks, not a spot reading taken on a quiet afternoon. Sampling is planned around your shift pattern and the work that genuinely drives exposure.

One Provider Across Part 7

Section 7.5 lists seven program elements, and measurement is only the first. We can also cover the hearing tests, the protection, and the records, so you are not coordinating three suppliers around one program.

Clear Work mobile occupational health van parked at a worksite
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Where We Work

Provincial Coverage. Local Service.

Clear Health Group delivers mobile occupational health and RN-led home services across British Columbia - including the Lower Mainland, Fraser Valley, Vancouver Island, and the BC Interior. Our team travels directly to worksites and homes, eliminating the need for clinic visits.

Currently serving major BC municipalities including:

What Employers Across BC Say About Us

Clear Health Group supports employers with reliable, structured mobile health services designed to simplify compliance and reduce operational disruption. Families trust our RN-led team for professional in-home care delivered with consistency and clinical oversight.

We recently used Clear Health Group for our company-wide annual hearing testing and respirator fit testing across two locations and two days. … Seamless and professional.

Verified Google Review

They showed up to our jobsite in Duncan, on time and were well prepared for our team to have their fit tests done on site.

Verified Google Review

Wonderful experience! Noah was lovely to coordinate with and the testing experience was seamless for our team! Would happily book again for our next test. Cheers!

Bodhin Kidd

We got our mask fitting tests done by Amy. Both the service and attitude were excellent! Will definitely call them again for other services!

Fa R-O

Great experience with Noah and Catherine. Showing up on time, very professional and on track for the schedule.

Fady Moussa

Definitely good at their job. Noah and Amy were at our construction job site and did a good job for testing. Helped all our crew on site.

Tanveer Singh

Happy to have booked with Clear Work. Noah & Nina were fast, easy to work with, and readily available. 5/5!

Jason Mitchell

ClearHealth is fantastic. Very accommodating and Noah is an absolute pleasure. Very friendly, quick services, very efficient! Highly recommend.

Brenda Cox

Friendly, professional and accommodating team! Pleasure to work with.

Danny Desousa

A great on-site hearing test experience. Katherine was kind, professional, and made the process quick and comfortable.

Vijay Kethan

Overall it was a wonderful experience for the test. Very professional and good consultation regarding hearing loss prevention.

Lovepreet Singh

Ammy took my hearing test and it was an awesome experience. She was very professional, kind, and explained everything clearly. The test was done smoothly and I felt comfortable the entire time. I truly appreciate her patience and excellent service. Highly recommended!

Bipanpreet Singh

Frequently Asked Questions

Common questions from BC employers about workplace noise measurement.

When is a noise survey required in BC?
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Section 7.3(1) requires an employer to measure worker noise exposure where a worker is or may be exposed to potentially harmful levels of noise, or where information indicates exposure may exceed 82 dBA Lex. Note that 82 dBA Lex sits below the 85 dBA Lex exposure limit in section 7.2, so the duty to measure begins before you exceed the limit itself.

Do we legally have to do a noise survey?
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Section 7.3(1) requires you to measure noise exposure where a worker is or may be exposed to potentially harmful levels of noise, or where information indicates exposure may exceed 82 dBA Lex. Section 7.4 offers an alternative: you may skip measurement if you instead treat those workers as over-exposed and establish an effective noise control and hearing conservation program for them. Measuring is the route that tells you who is actually below the limit.

How long does a survey take?
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Personal dosimetry is a full-shift measurement, so a survey day brackets a whole working shift — we fit dosimeters at shift start and collect them at the end. Area readings are taken in between. A single site is usually one day; an operation spread across several sites is scoped and quoted accordingly.

Who is allowed to perform noise measurement in BC?
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The regulation sets no certification requirement for the person measuring. What it does require, under section 7.3(2), is that the measurement be carried out in accordance with CSA Standard Z107.56. The method is regulated, not the job title — which is why you should ask any provider how they sample, not just who they are.

Do we still need hearing tests if we have a survey?
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Yes, for workers exposed above the limits. Section 7.8 requires a test within six months of starting work and at least once every 12 months after that, administered by a hearing tester authorized by the Board. The survey is what tells you which workers that applies to.

Book a Noise Survey for Your Worksite

Tell us your site, your shift pattern and roughly how many distinct work areas you have, and we will scope the survey and quote it. We reply within 1 business hour.

Please note: our on-site services are booked for groups of 5 or more people at one site.

Sound level meter being used to take a noise reading at an industrial site