ENTACT performed remedial activities at this 2,200-acre industrial complex in preparation for mixed-use redevelopment. Using our internal technical and treatability skills, we developed a remedial solution to reduce the site’s high moisture levels to target objectives. This process included geotechnical evaluations, soil mixing, free draining, dewatering, and reagent evaluations of source materials. We performed critical items concurrently throughout our phased, multiyear site approach to maintain an efficient schedule.

Major scope items included the removal of 3.9 million cubic yards of waste soil, sediment and sludge; phased construction of an onsite, 53-acre corrective action management unit (CAMU); concurrent placement of the amended onsite waste materials within the CAMU; design and installation of a steel sheet pile retaining system to enable excavation of pyrophoric waste, blended volatile organic compounds and polychlorinated biphenyls up to 50 feet deep; and installation of a Resource Conservation and Recovery Act (RCRA) Subtitle C geosynthetic and soil cover system over the CAMU.