Specifications include, but are not limited to: The County Commissioners of Charles County are hereby requesting sealed proposals from qualified Design-Build teams to complete a full replacement of the existing belt filter press dewatering units and associated equipment, electrical, instrumentation, controls, and SCADA integration, along with corresponding architectural, structural, HVAC, and piping improvements at the Mattawoman Wastewater Treatment Plant (MWWTP). The existing belt filter press dewatering units are to be replaced with new high solids centrifuge dewatering units. The Design-Builder (DB) will be responsible for design, permitting, construction, testing, and startup services associated with the project. The DB Teams will be required to provide complete turn-key services for the project including design, permitting, furnishing material and equipment, installing material and equipment, testing and startup, and contract close-out to provide a complete and fully functioning system. The County will contract with others to provide temporary sludge dewatering during construction.