Abstract |
The U.S. Environmental Protection Agency (U.S. EPA) undertook a project to characterize subsurface contamination and evaluate the potential for vapor intrusion (VI) at the Grand Plaza Shopping Center in Dallas, Texas. There is subsurface contamination of chlorinated solvents beneath the southwest end of the building, where a dry cleaning was once located. In recent years, a series of restaurants have occupied the space. The site investigation built upon several past Brownfield Site Assessments (BSAs) previously completed at the site. Based on the past work, it was known that groundwater and shallow soil in the vicinity of the former dry cleaner is impacted by tetrachloroethylene (PCE), trichloroethylene (TCE), and cis-1,2-dichlorothylene (DCE). The concentrations of metals and SVOCs were below the applicable regulatory levels in both soil and groundwater samples and therefore were no longer considered chemicals of concern for the property. |