The Borden Facility provides a platform for development and field testing of concepts and technologies in contaminant hydrogeology and groundwater remediation. This Facility consists of existing infrastructure capable of supporting field experiments such as the controlled release of chemicals into the subsurface to demonstrate transport processes and remediation. Infrastructure includes sheet-piling isolated cells, extensive multilevel groundwater monitoring networks, wells for testing sampling devices, and existing sources of contamination emplaced into the aquifer.