U. S. Environmental Protection Agency Administrator Gina McCarthy apologized Tuesday for a mine spill in Colorado caused by her agency, but she indicated she didn’t know much about what happened and would seek to fix any flaw in the agency’s procedures. “I am absolutely deeply sorry this ever happened,” Ms. McCarthy said at a news conference in Washington. “But I want to make sure we react positively and in a way that’s credible and we move this forward.” An EPA cleanup crew on Aug. 5 accidentally triggered a breach in an abandoned gold mine in the Southwestern part of Colorado, releasing an estimated three million gallons of toxic, mustard-hued sludge through a river system spanning three states. The sludge, which flowed down the Animas River and emptied into the San Juan River in New Mexico, contains such contaminants as lead and arsenic from the Gold King Mine, north of […]