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Designated Substance Surveys Service
Designated Substances are those substances designated hazardous by law by the applicable provincial and/or federal legislation. These substances are defined in the province of Ontario under the Occupational Health and Safety Act, as the following:
- Acrylonitrile (R.R.O. 1990, Reg. 835)
- Arsenic (R.R.O. 1990, Reg. 836)
- Asbestos (R.R.O. 1990, Reg. 837 and R.R.O. 1990, Reg. 838)
- Benzene (R.R.O. 1990, Reg. 839)
- Coke Oven Emissions (R.R.O. 1990, Reg. 840)
- Ethylene Oxide (R.R.O. 1990, Reg. 841)
- Isocyanates (R.R.O. 1990, Reg. 842)
- Lead (R.R.O. 1990, Reg. 843)
- Mercury (R.R.O. 1990, Reg. 844)
- Silica (R.R.O. 1990, Reg. 845)
- Vinyl Chloride (R.R.O. 1990, Reg. 846)
The Ontario Occupational Health and Safety Act places a duty on building owners to identify the presence of Designated Substances prior to demolition or renovation work.
A typical Designated Substances Survey consists of an extensive examination of all accessible areas to identify suspected designated substances. The identification of suspect materials is based on the surveyor’s knowledge regarding the historical use of such materials in buildings.
Samples are required for laboratory analysis to confirm the presence or absence of asbestos, and may also be collected to identify arsenic, lead or mercury in building materials, especially paint.
Terrapex has extensive experience conducting designated substances surveys and preparing reports which meet the requirements of the Ministry of Labour.