ENTACT performed comprehensive remedial activities at a 2,200-acre industrial complex to prepare the site for mixed-use redevelopment. Leveraging our internal technical and treatability expertise, we developed a remediation solution aimed at reducing the site’s high moisture levels to meet specific objectives. This involved geotechnical evaluations, soil mixing, free draining, dewatering, and reagent assessments of source materials. To maintain an efficient schedule, we executed critical activities concurrently throughout our phased, multiyear approach. Upon project completion, ENTACT had:

• Removed 3.9 million cubic yards of waste soil, sediment, and sludge
• Constructed an onsite, 53-acre corrective action management unit (CAMU)
• Placed amended onsite waste materials within the CAMU
• Designed and installed a steel sheet pile retaining system to facilitate excavation of pyrophoric waste, blended volatile organic compounds, and polychlorinated biphenyls (PCBs) up to 50 feet deep
• Installed a Resource Conservation and Recovery Act (RCRA) Subtitle C geosynthetic and soil cover system over the CAMU