The Congress-led investigation aims to determine the agency’s role in triggering a 3-million-gallon toxic spill into Colorado’s Animas River on Aug. 5.
Metals from copper to aluminum fell again Friday, and were heading for their worst week of the year, after data showed Chinese factory activity shrinking at the fastest pace since 2009.
About 3 million gallons of toxic wastewater, triple previous estimates, have poured from an old Colorado gold mine into local streams since Wednesday last week.
