The work on this project includes but is not limited to removal and replacement of RBC shafts, bearings, bearing mounts, motors, miscellaneous electrical, media, aeration diffusers, and modification of related electric and electronic components of two RBC trains. Work also consists of concrete repairs to the two (2) RBC Tanks as needed and coating of Tanks. The work also consists of the replacement of three Raw Sewage Influent Pumps, replacement of three (3) influent check valves, replacement of the grit fine screen, and replacement of six (6) Philadelphia Mixers at the plant. The scope of the work also includes replacing the weir trough and scum baffle in Digesters No. 1 and No. 2 and replacing the Center Manifold and Suction & Plow Arm in Digester No.1.