This project consists of the construction of one (1) 50-foot diameter secondary clarifier tank and mechanism, relocation of yard piping to facilitate the installation of the secondary tank, manholes, distribution box with slide gates, yard piping, valves, and appurtenances for complete and operational secondary clarifier tank. Additionally, the waterproofing of the RAS/WAS pump station inclusive of louver and exhaust fan relocations with brick infill of the existing locations and floodproof doors. This project also consists of three (3) bid alternates. Bid Alternate No. 1 consists of RAS/WAS pump station upgrades inclusive of RAS/WAS pumps, flow meters, process valves, piping, fitting, pipe supports, and appurtenances replacement. Bid Alternate No. 2 consists of minor RAS/WAS pump station upgrades inclusive of flow meters and process valve replacements. Bid Alternate No. 3 consists of the removal and proper disposal of the existing two (2) 30-foot diameter secondary clarifier tanks, distribution box, and yard piping as indicated. Additionally, it will consist of the construction of one additional (1) 50-foot diameter secondary clarifier tank and mechanism, yard piping, and appurtenances for complete and operational secondary clarifier tank. See attached files.