Amec Foster secures $48.4m USACE contract to upgrade Idaho water treatment plant

Amec Foster Wheeler has been awarded a $48.4m design-build contract by the US Army Corps of Engineers (USACE) to upgrade the water treatment plant at the Bunker Hill Superfund location near Kellogg, Idaho.

As part of the contract, Amec Foster Wheeler will design and build an expansion of the presently operating Central Treatment Plant, including new reactors, a sludge thickener and pressure filter system.

It will also design and build an 8,000-ft slurry wall, groundwater collection system with six miles of piping, and a ten-acre sludge impoundment area. 

The firm will also offer operation and maintenance of the facility during design, construction, and commissioning phases as well as one year after.

This work is part of remedial action under the US Environmental Protection Agency’s (EPA) efforts to clean up Silver Valley, which is a historical mining district.

Amec Foster Wheeler president for environment and infrastructure business Ann Massey said: "Using our experience and expertise in remediation works, we are best placed to help our clients address their environmental liabilities.

"We use safe, energy-efficient and innovative treatment methods designed to optimise performance for the next 50 years, minimise the environmental impact and restore areas which have been under stress due to heavy mining activity.

"We’re pleased to have been commissioned by USACE to do this remedial work, which can be rolled out in other parts of the U.S.”