Military Ocean Terminal Concord (MOTCO) Berms Construction and Dredging - RFI

The work includes construction of a detention basin consisting of new earthen containment berms utilizing borrow material excavated and transported from a designated site on the base, installation of reinforced 40-mil polyethylene liner within the detention basin, clamshell dredging to a depth of -35 FT with 1-FT allowable paid over-depth and 1-FT allowable unpaid over-depth adjacent to wharves 2 and 3 with disposal at the detention basin, underwater relocation of large debris located within the dredging footprint, Unexploded Ordnance (UXO) screening of the dredged material down to 3 inches during the dredging operation and prior to placement within the bermed area by personnel qualified in UXO handling and removal activities, testing of the detention basin water prior to discharge to the local wastewater system.