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Water treatment contract marks mines remediation preeminence, says firm

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Abandoned mine in Bodie, east of the Sierra Nevada mountain range. Amec Foster Wheeler says its mining remediation methods could be rolled out across the US.

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

Under the contract, Amec Foster Wheeler will design and construct an expansion of the currently operating Central Treatment Plant, including new reactors, a sludge thickener and pressure filter system. It will also design and construct an 8,000-foot slurry wall, groundwater collection system with six miles of piping, and a ten-acre sludge impoundment area. The company will also provide operation and maintenance of the facility throughout design, construction, and commissioning and for one year after.

The work is part of required remedial action under the US Environmental Protection Agency’s (EPA) efforts to clean up historic contamination in the Silver Valley, one of the largest historical mining districts in the world.
With more than US$2 billion of similar remedial work required in many abandoned mining sites across the western part of the US, Amec Foster Wheeler says it has developed unrivalled experience and expertise in mining system design and delivery of innovative remediation approaches.

The firm says that winning this engineer, procure and construct (EPC) contract recognises its position as a leading company for abandoned mines remediation or closure contracts.

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