Summary
Work includes the replacement of equipment, structural items, and other miscellaneous improvements in the headworks building at the marcy gulch wwtp. Modifications to the existing grit basin upper diameter to promote better grit removal efficiency; replacement of mechanical grit equipment including blowers, valves, and piping; replacement of existing pipes and reconfiguration of piping in pump pit to accommodate three two new rotary lobe pumps in place of two existing pumps. Addition of a third pump is to accomplish mixing by recirculation. Addition of a recirculation line with mixing nozzles in the sludge wet pit; full replacement and upgrade of the existing hydronic system used for building heat. Removal and replacement in-kind of the existing ventilation fans in the old chemical storage room; removal of existing support beams and grating and replacement with new in the area of the demolished fine screens. Addition of new grating where screens were located to fully deck this area.