In a non-binding opinion, an administrative law judge said adding bentonite clay to the mine-waste slurry and lining the tailings basin with bentonite was impractical and would not meet state law.
In a non-binding opinion, an administrative law judge said adding bentonite clay to the mine-waste slurry and lining the tailings basin with bentonite was impractical and would not meet state law.
In a non-binding opinion, an administrative law judge said adding bentonite clay to the mine-waste slurry and lining the tailings basin with bentonite was impractical and would not meet state law.
Pending final approvals, the Swiss mining giant will buy all remaining shares in the company, which hopes to open the state's first copper-nickel mine, and take it private.