Holden Mine Remediation Project

Environmental
Written By Sandra van der Lee
 

This project consisted of construction monitoring for the remediation of an old copper mine at the Holden Village area in the Chelan Forest area of Washington State.

NGA provided full-time QA/QC services for the installation of a deep subsurface wall, jet grouting, fill placement and other activities to mitigate clean up.

NGA also provided laboratory testing for soil and concrete.

Location: Chelan County, WA

Client: MWH Global Americas

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Sandra van der Lee
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