Vapor Intrusion is a relativey new and emerging field. Properties redeveloped on contaminated property prior to 2005 are being re-evaluated for the possibility of potential health effects from vapors seeping into buildings from soil and groundwater contamination left in place. The potential for a "new" environmental condition to re-open sites that were previously "closed" or developed under a Brownfield agreement, even when all of the covenants of the agreement were met is causing both financial and liability concerns for property owners, residents, and tenants. Fortunately, Shield's expertise in understanding the complex issues presented by these conditions can help you evaluate, correct, and mitigate real and percieved issues.
Shield conducted comprehensive site evaluation for a pending Brownfield redevelopment. The project included soil, groundwater and soil vapor/indoor air evaluation, compiling data from multiple data points into a comprehensive report submitted for state regulatory review.
Shield had six weeks from project planning to final report delivery in order to meet town financing requirements. Shield completed the project ahead of schedule and under budget, enabling the town to meet their lender requirements.
Shield was retained by the project owner to provide environmental services for a pending Brownfield redevelopment. Shield was reassigned the project from another consultant who had difficulty meeting demanding project schedules for deliverables. The primary source of contamination was tetrachloroethylene (PCE) from a former dry cleaner that operated at the site in the 1970s.
Shield provided comprehensive subsurface investigation of the former dry cleaning location and along a sewer line that served as a preferential pathway for contamination migration. Concerns included future site use and the potential for vapor intrusion and potential impact to an adjacent stream. Shield’s services included chlorinated compound assessment, soil vapor intrusion evaluation, including vapor well installation, underground storage tank removal, monitoring well and soil gas well installation and sampling. Shield subsequently designed an active vapor collection system for all buildings in the development and continues to provide engineering services for the project.
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