This lead-and-zinc smelter in Trail, B.C., operated by Teck Cominco Ltd., sits on a hill above the Columbia River, in this 2003 file photo, a few miles north of the Washington border.
This lead-and-zinc smelter in Trail, B.C., operated by Teck Cominco Ltd., sits on a hill above the Columbia River, in this 2003 file photo, a few miles north of the Washington border. Greg Gilbert / Seattle Times / MCT
This lead-and-zinc smelter in Trail, B.C., operated by Teck Cominco Ltd., sits on a hill above the Columbia River, in this 2003 file photo, a few miles north of the Washington border. Greg Gilbert / Seattle Times / MCT