MTPR

ARCO

Loren Burmeister (L) and Josh Bryson (R) are the liability business manager and operations project manager for Atlantic Richfield in Butte, pictured outside the company's local headquarters. April 22, 2019
Nora Saks

After more than 30 years, the Environmental Protection Agency, the state of Montana and Butte Silver Bow County are close to signing a final Superfund deal with Atlantic Richfield for the cleanup of the Butte Hill and creek corridors in town. Atlantic Richfield, the former American oil giant, is the company on the hook for most of the pollution caused by historic mining and smelting operations in Butte and across the upper Clark Fork River basin.