ENTACT executed the remediation of mercury and lead contaminated sediments along a 3,600-linear-foot segment of a closed canal. This project involved the construction of a temporary remediation support area and several key operational components to ensure effective sediment removal and management. Our team successfully addressed sediment contamination and enhanced the ecological and recreational value of the canal area. On this project, ENTACT:

• Constructed a temporary remediation support area with two dredge processing cells, a temporary water pretreatment system area, multiple staging areas along the canal, and a temporary water management system
• Performed mechanical dredging of 30,000 cubic yards of contaminated sediment from a floating barge assembly
• Dewatered and conditioned sediments for safe handling
• Conducted characterization, transportation, and off-site disposal of the dredged materials
• Placed a subaqueous cap and cover system consisting of 14,000 cubic yards of granular backfill within the canal
• Added 26,800 cubic yards of granular fill and topsoil for the construction of a multiuse path
• Restored canal banks using coir fabric and seed