Investigation: EPA, State Underestimated Spill Potential

BILLINGS, Mont. (AP) — An internal government investigation has found that federal and state regulators underestimated the potential for a blowout from a Colorado mine, documents released Wednesday show.
Investigators concluded the federal Environmental Protection Agency and state regulators underestimated how much water pressure had built up inside the inactive mine before a government cleanup crew triggered the release, according to the documents released by the EPA.
The agency previousl