Don't have to shut the mines down just do it right. Containment ponds for runoff and leaching, Refill and reforestation of spent mine excavations. Nothing that can't be done now using the knowledge and technology currently available. Plenty of work available to do things right.
SOCO's nuclear application was submitted in 1998. 2008 was the year that the reactor design was type certified and approved for final permitting phase. WIKI doesn't tell you everything. 12 years is currently the minimum to approve a nuclear reactor.
No charge for the lesson.
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