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BROWNFIELD REDEVELOPMENT

We recently provided soil vapour mitigation design support to the redevelopment of a brownfield site contaminated with chlorinated solvents. You may have heard of trichloroethylene or tetrachloroethylene. They are great dry-cleaning fluids and industrial degreasers. They are also known human carcinogens. If you have ever visited the dry cleaner and caught a sweet chemical smell, that is what we are talking about.


The design included the installation of Cupolex® under the concrete floor to create an air plenum. We completed a diagnostic investigation to determine the number and location of suction points, and size the system fan. The initial round of pressure measurements and indoor air sampling has indicated that the system is very effective. This was a critical step on the road to returning a large piece of real estate to a usable condition.

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