Site A is a shallow soil and groundwater impact site, its primary COCs are metals and VOCs for both soil and groundwater. Completed soil cleanup actions include characterization, excavation, sorting, treatment, disposal, site restoration, site access restrictions, and groundwater monitoring. One cleanup action, implementation of land use controls (LUCs), is ongoing. Groundwater cleanup actions currently in place include groundwater monitoring, LUCs, alternate water supply and well abandonment and monitored natural attenuation (MNA).Groundwater characterization and cleanup has been completed for Site A. In 2021, a vapor intrusion (VI) study will be completed and additional monitoring wells will be installed at Site A after plume delineation. The proposed VI study will address the migration of a shallow groundwater plume that exists at Site A and the potential VI risk it poses to the residential neighborhood directly north of the TCAAP property boundary.
Site K is a shallow groundwater impact site, its primary COCs are VOCs (including TCE). Completed cleanup actions include the installation of sentinel wells and additional investigations into the site. Ongoing cleanup actions include groundwater monitoring, hydraulic containment, groundwater treatment, treated water discharge, discharge monitoring and LUCs. In 2021, a treatability study to assess bioremediation will be completed at the site.
Building 102 is a shallow groundwater site, its primary COCs are VOCs. Ongoing cleanup actions include MNA, groundwater monitoring, and LUCs.