Construction Management and Inspection Services for the Ophir Water Treatment Plant Project

The Placer County Water Agency is seeking proposals for construction management and inspection services for the Ophir Water Treatment Plant Project. The project involves the construction of a new water treatment plant with a capacity of 15 million gallons per day, and includes raw water supply, treatment process facilities, chemical facilities, solids handling facilities, and a treated water system. The selected consultant will provide pre-construction services, construction management and administration, construction inspection, and other related professional services. The project is expected to start in January 2026 and be completed in February 2030. Some key aspects of the project include: • Construction of a new water treatment plant with a capacity of 15 million gallons per day • Raw water supply from the American River or PG&E South Canal • Treatment process facilities including coagulant flash mixing, Actiflo Turbo pretreatment, granular media filters, and a prestressed concrete clearwell • Chemical facilities for sodium hypochlorite, sodium hydroxide, aluminum sulfate, and polymer • Solids handling facilities including plate settlers, gravity thickener, and evaporative sludge drying beds • Treated water system including a pump station and distribution piping The selected consultant will be required to have experience with similar projects, including water treatment plants, and will be responsible for ensuring that the project is completed on time, within budget, and to the required quality standards.