From the Summit County Citizens Voice (Bob Berwyn):
One part of the planned work involves moving some of the waste rock from the mine away from running water, a technique that has proven successful in other remediation projects. A collaborative task force including local, state and federal stakeholders have been grappling with the pollution for years, as cost estimates for a cleanup have soared.
This summer, the various parties collaborating on the cleanup will also try to enter the old mine itself to try and figure how water moves through the shafts and tunnels. That may help the experts figure out if they can permanently block the water coming out of the mine with a bulkhead, according to Lane Wyatt, a water expert with the Northwest Colorado Council of Governments. “That’s the big thing, is opening up the Penn Mine … that’s kind of exciting, going in see what’s going on in there. That might help us develop some remedial options based on more than just guessing,” Wyatt said.
Other potential remediation options include a water treatment facility, or perhaps even trying to block or divert water before it gets into the mine.
“The Forest Service has been involved in looking for ways to clean up the Penn Mine for many years. This is a great step forward,” said acting Dillon District Ranger Peech Keller.