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Case study highlights:

  • TerraShield was considered the safest and most effective choice to protect against the high levels of vapor contaminants found onsite

  • The installation of TerraShield eliminated potential health risks for future onsite employees posed by the hazardous vapor intrusion exposure from the TCE and PAH contaminants

  • TerraVent, a low-profile trenchless vapor collection system, was installed on this site

A large automotive and supply company planned to build its new corporate headquarters on a 4.5-acre brownfield site recently acquired in Southfield, MI. Soil and groundwater sampling on the property revealed the presence of trichloroethylene (TCE) and polynuclear aromatic hydrocarbons (PAHs). TCE was also identified in soil gas beneath the site. Within the footprint of the planned building itself, contaminant concentrations were found to be in excess of applicable indoor air quality screening levels. The developer utilized brownfield funding from the local authority to conduct the necessary environmental remediation measures.

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