Colorado Goldfields Inc. (fka CGFI)

[Zorax]

Apparently it was the EPA who absolutely broke the bulkhead while investigating. Years of finger pointing and large corporate fighting costs and weaseling out of commitments and regulations while the Sunnyside mine flooded everyone, including gold king. I see a lot of corporate bait and switch doing smaller jobs for less costs than actually spending real money and solving the real sunnyside problem.
This has been historically what miners have done, basically chew up the environment without the cost or responsibility of their actions.
Not all, but most. sunnyside is owned by canadian giant kinross

I don't share or follow this author's views but a fairly unbiased timeline article here:

http://www.dailykos.com/story/2015/08/12/1411469/-Gold-King-A-long-history-of-public-risk-for-private-gain#