Caleb Uerling, a fisheries biologist for Montana Fish, Wildlife & Parks, believes the high conductivity of treated Berkeley Pit water discharged into Silver Bow Creek could affect trout.

Berkeley Pit, an open-pit copper mine that has been allowed to fill with water since its closure in 1982, is seen in this October, 2003 file photo. Credit: WALTER HINICK /THE MONTANA STANDARD VIA ...

MISSOULA — It would dwarf the Berkeley Pit: A hole blasted and dug into the Alaskan landscape about a half-mile deep and 2.5 miles across. What could go wrong in the pursuit of what’s touted ...

8:30 p.m. update: The Fisher's Pit Wildfire in Berkeley was 70% contained on Tuesday evening, according to the New Jersey Forest Fire Service. The blaze poses no threat to populated areas and ...

Conductivity is a measure of the ability of water to pass an electrical current. Water can conduct electricity ...