Piney Branch Shopping Center
This former dry cleaner site is the source of a tetrachloroethylene (PCE) groundwater plume at a multi-tenant shopping center in Silver Spring, MD. Langan conducted monitoring well installation, soil sampling, groundwater sampling, and active and passive soil gas sampling to locate the source of the PCE plume. The source was determined to be a sump located in the basement of the tenant space and Langan designed an active soil vapor extraction system to remediate the source area and groundwater plume. Langan communicated and consulted with Maryland Department of the Environment throughout the project to facilitate the site’s participation in the Voluntary Cleanup Program.