Mobilization and administration Demolition of piping and appurtenances Interim fix to Filter Train 1 Replace/Update three turbidity meter sample pumps, piping, and/or location of samplers on Filter Train 1 Rehabilitation of Filter Train 2 including: Disassembly/Demolition of tank internals and external piping connections Remove and dispose of existing filter media Sand blast tank interior to white bare metal Repair areas of structural damage and corrosion Fully repaint tank interior Touch up paint tank exterior Install cast in place concrete floors for underdrain flume structure in tank Install new weir plates and connecting hardware Install new clarifier influent distributor assembly, joint material, and connecting hardware Install new air scour assembly Install new filter underdrains Install new lower media retaining screens, gaskets, and connecting hardware Install new clarifier filter media Install new upper retaining screen assemblies Install new manway cover gasket Reconnect external piping, valves and appurtenances to the tank Install a redundant backwash pump and associated piping and appurtenances Install new inline static mixer on plant influent piping Replace treatment plant control valve pneumatic actuators with electric actuators Valve Vault Piping Repair leak in valve vault piping downstream of distribution pumps
