New Mine Spill

Environmental biologists in Utah tested the waters of a key river Tuesday for signs of a toxic waste spill from a botched Colorado mine clean-up operation that prompted a state of emergency in the desert Southwest.

Authorities in northern Mexico have issued a new alert of a toxic spill in the Sonora River basin from a copper mine operated by Grupo Mexico, the state director of civil protection said Sunday.

Environmental biologists in Utah tested the waters of a key river Tuesday for signs of a toxic waste spill from a botched Colorado mine clean-up operation that prompted a state of emergency in the desert Southwest.

Authorities in northern Mexico have issued a new alert of a toxic spill in the Sonora River basin from a copper mine operated by Grupo Mexico, the state director of civil protection said Sunday.