BaseLine Industrial Hearing Testing is based in Chilliwack, British Columbia authorized to provide hearing tests throughout British Columbia

Onsite Hearing Testing

With 15+years in the hearing health industry BaseLine Industrial Hearing has experienced licensed industrial audiometric technicians, to assist your worksite with all your hearing and testing needs.
WorkSafe BC Regulation 7.8 
states that all noise exposed workers in BC must have a hearing test by an authorized provider within 6 months of employment and every year after the initial test.
BaseLine is authorized to conduct industrial hearing tests under the British Columbia Occupational Health and Safety Regulation.  Our mobile unit is equipped with 2 soundbooths and state of the art equipment available to come to your worksite and conduct tests efficiently to minimize impact on your production needs. 
Testing cards are given to each employee, along with summary reports provided to employer and sent to WorkSafe BC database for easy access to employers.


Hearing Protection

Health & Safety Regulation 7.7 specifies hearing protection devices must be provided in accordance with the CSA Standard.
In order to be able to compare volume in different situations, noise levels are expressed in decibels (dB). Note that an increase of 3 dB is perceived as a doubling of the volume level. The sound level in a room can be roughly estimated by how well we can understand people speaking.

The impact of noise on body and soul

It is not only our hearing that suffers from noise. Even low noise levels can trigger the release of stress hormones, leading to increased blood pressure. This in turn can lead to aggressive behavior and tensions in interactions with other people, as well as an increased risk of stroke, heart attack and tinnitus. Unwanted sources of noise also prevent relaxation, recovery and sleep and impair concentration and performance.
In conditions where noise is persistent or excessive, such as in construction and industrial environments, those who fail to properly protect their ears run a much higher risk of irreversible hearing loss.
Our trained technicians can assist your workers to find the best solution for their hearing protection needs.  BaseLine is able to provide custom molds and provide all products.

Noise Surveys

BaseLine Industrial Hearing Testing can perform a noise survey for your place of business, strata or personal use. A full summary is completed with our calibrated, certified integrated sound level meter and dosimeter.
Employers  in BC are responsible for knowing which workers are overexposed to noise.  The Occupational Health and Safety Regulation sets exposure limits for noise at 85 dBA (Lex) and a peak noise level of 140 dBC. When workers are or may be exposed to noise above 82 dBA Lex employers must measure the noise exposure unless an exemption applies (see page 7 of WorkSafe BC Publication “Sound Advice”). How loud is 82 dBA? If you have to raise your voice in your workplace to carry on a conversation, then the noise level is likely over 82 dBA. Workplace noise measurements:
  • Identifies significant sources of noise in the workplace and helps prioritize them for noise  control measures.
  • Determines noise exposures of workers and identifies workers who require hearing protection, hearing testing, education, and training. 
  • Determines workplace areas that should be posted as hazardous noise.


When noise exceeds regulated limits, employers must have an effective noise control and hearing loss prevention program. The regulated limit set by the WorkSafeBC for noise exposure in B.C. is 85 decibels (dBA) for an eight-hour period, or an equivalent noise exposure of one Pascal-squared hour (Pa2h). For impact noises (for example, pile driving or hammering), a 140-dBC peak sound level cannot be exceeded. The goal of a hearing loss prevention program is to reduce the noise exposure of workers to a safe level and prevent occupational hearing loss.  By having a noise measurement taken at your place of business and work, you can make sure that the noise is within healthy limits for you and your employees. Hearing loss prevention programs must address:
• Noise measurement
• Education and training
• Engineered noise control
• Hearing protection
• Posting of noise hazard areas
• Hearing tests
• Annual program review 

Residential Development and Environmental Noise Measurement Community Noise

BaseLine provides services in disputed matters. Community noise can be caused by traffic, neighbors, construction, aircraft, or industrial processes.
Noise can cause hearing impairment, interference with communications, disturb sleep, cause cardiovascular and psycho physiological effects, reduce performance, and provoke annoyance responses and changes in social behavior. 
Subjective effects have been identified, such as difficulty in falling asleep, perceived sleep quality, and adverse after-effects such as a headache and tiredness. Sensitive groups mainly include elderly persons, shift workers and persons with physical or mental disorders.
The more intense the background noise the more disturbing is its effect on sleep. Measurable effects on sleep start at background noise levels of about 30 dBA Leq. During sleep, the body cycles between non-REM and REM sleep. According to the World Health Organization (WHO) Guidelines for good sleep, sound levels should not exceed 30 decibels for continuous background noise and 45 decibels for individual noise events.


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