Designated Substance Report Service
A Designated Substance Report (DSR) is a requirement when renovating or demolishing a building. The Ontario Occupational Health and Safety Act requires a list of all designated substances to be provided to any contractors bidding on construction projects involving existing buildings. This list allows contractors to take any necessary steps to control exposure of workers and members of the public to the designated substances identified to be present on the project site. Locations and concentrations of designated substances are also included in the report.
Under Ontario Regulation 490/09, there are 11 designated substances. The following is the current list: acrylonitrile, arsenic, asbestos, benzene, coke oven emissions, ethylene oxide, isocyanates, lead, mercury, silica, and vinyl chloride.
There are 4 designated substances commonly found in building materials utilized in the construction of homes, offices, and commercial buildings. The designated substances are asbestos, lead, mercury, and silica.
In conducting the survey, we collect samples, analyze, and document where applicable. Samples collected are sent to an accredited laboratory for analysis. The site information collected and lab results are analyzed and summarized in the Designated Substance Report.