Tetra Tech was recently awarded $22.4 million for a three-year program to remediate and restore a 280-acre former Rio Tinto copper mine site in Nevada. The Elko County site also includes a mill, heap leach pads, and residual tailings from when the project was operated between 1932 and 1976.

Tetra Tech will remove tailings from the nearby Mill Creek for placement in an onsite repository, provide hydraulic engineering to improve the creek and restore habitat for the local redband trout. The company has also said it will improve Mill Creek and East Fork Owyhee River water quality.

Tetra Tech’s client for this fixed-price remediation program is Mountain City Remediation. The cleanup is being financed by corporate successors, including the Atlantic Richfield Co. (ARCO).

Tetra Tech Inc. is a top provider of consulting, engineering, program management, construction management and technical services for full project lifecycles. The company supports government and commercial clients with solutions to problems focused on water, environment, energy, infrastructure and natural resources. The company has more than 14,000 staff worldwide. www.tetratech.com