Located on the former Titan 1-A missile site on Oak Tree Lane in Lincoln, the project addresses lead contamination left from decades of use as a pistol and skeet range. Photo courtesy of Placer County

AUBURN, CA (MPG) - The Placer County Board of Supervisors on Tuesday approved an updated contract to continue and complete lead remediation at the former Lincoln Gun Ranges site, advancing efforts to restore the property to residential cleanup standards.

The board approved an amended agreement with Metals Treatment Technologies (MT2), the environmental remediation contractor, to complete the project with an expanded scope of work.

The total estimated project cost is now $8.6 million, reflecting additional contamination discovered during excavation last year, increased soil removal and disposal requirements, and other necessary remediation work identified as the project progressed.

Located on the former Titan 1-A missile site on Oak Tree Lane in Lincoln, the project addresses lead contamination left from decades of use as a pistol and skeet range. Although the ranges have been closed since 1999, firing lines, earthen berms and spent ammunition remained, leaving elevated levels of lead in the soil.

Work began last year with significant progress before winter weather paused construction. To date, the project has recycled more than 12 tons of recovered lead materials, transported more than 400 truckloads of contaminated soil to licensed hazardous waste facilities. completed approximately 85% of the original base scope of work, including full removal of the pistol range berm.

"Completing this cleanup is an important investment for west Placer's future," said Board Chair and District 2 Supervisor Shanti Landon. "Restoring the property to residential cleanup standards protects the community, reflects our commitment to being a good partner to the City of Lincoln, and creates new opportunities for the site to serve residents in the years ahead."

Throughout construction, soil sampling, air quality and stormwater protections will continue to be monitored by the county's environmental consultant, Provost & Pritchard Consulting Group, to ensure work is completed safely and in compliance with environmental regulations.

Construction is expected to resume in July and continue until remediation is complete.

Project updates are available at https//www.placer.ca.gov/leadcleanup.