1,2,3-Trichloropropane (TCP) Removal Treatment Plant

Butier Engineering, Inc. provided professional construction management support and special inspection services for the 1,2,3-Trichloropropane (1,2,3-TCP) Removal Treatment Plant Project. This critical project is required for the City of Chino Hills to comply with the State Water Resources Control Board mandate of an MCL of 0.005 micrograms per liter of 1,2,3-TCP, which was identified in the City’s groundwater wells supply. The water treatment facility consists of granular activated carbon (GAC) vessels to remove 1,2,3-TCP.

Scope of Work

• Construction of a centralized GAC treatment plant to remove contaminants from the water
• Installation of granular activated carbon (GAC) treatment vessels and associated piping
• Site civil work including grading, access roads, fencing, and stormwater improvements
• Electrical, instrumentation, and SCADA upgrades to integrate the new facility with the City's existing system

Project Benefits

• Produces nearly 3 million gallons per day of high-quality drinking water for residents
• Reduces the City's dependence on costly imported water from other agencies
• Improves groundwater resources
• Increases local, sustainable water supplies
• Saves the City money on purchased water delivery costs
• Enhances resiliency during drought

City of Chino Hills Project Website