The proposed service contract will allow for design and construction services for the repair or upgrade of mechanical equipment and infrastructure related to a complex water treatment facility. The awarded Contractor shall provide all management, supervision, labor, equipment and materials necessary to perform construction, retrofitting or replacement related to mechanical work under negotiated Firm-Fixed-Price Construction Task Orders. The construction services consist of, but are not limited to, the repair and renovation of existing systems of the following types: industrial mechanical equipment to include compressors, pumps and motors, pumping stations, water mains, sluice gates and valves, fire alarm systems, fire extinguishing systems, intrusion detection systems, and heating, ventilation and air conditioning (HVAC) equipment and systems, ducts and controls, boxes and wiring devices. There may be ancillary design efforts which consist of, but are not limited to, construction, retrofitting, and/or replacement of existing and/or the addition of new equipment or systems to support the above stated tasks. Orders may include within them the requirement to perform preparation of Operations and Maintenance (OM) Manuals.The work will be performed for the United States Army Corps of Engineers (USACE) within the boundaries of the Baltimore District with the primary work performed at Washington Aqueduct, Washington, District of Columbia.The outcome is to provide the Government with cost-effective, rapid response for repair, renovation, construction and/or dismantling, demolition, or removal of industrial mechanical systems.