On the recordNovember 29, 2017
Reclaiming my time, I would like to talk about that because of what type of mine this is. As has been pointed out, northern Minnesota has had a long history of mining, but the mine that we are talking about here is not like any other mine in the State. This is a copper-sulfide mine. These types of mines are notorious for generating acid mine drainage. As the Forest Service puts it: These mines are known worldwide for producing acid mine drainage that requires continuous management and perpetual water treatment. Even in the absence of a major spill, having this acidic waste chronically leaking into the environment will create a problem that will last for generations and may never be fixed. A study of 14 similar copper mines found that all but one had significant water quality impacts due to failures of the water collection and treatment systems from keeping the contamination from seeping out. As was pointed out by the opposition, the majority, most of these mines are in dry areas of the American Southwest where there is far less water that needs to be treated than in a very wet environment like northern Minnesota. The Forest Service also describes the specific threat that the Boundary Waters are under. They point out that there is ``a direct flow of water from these leases to the Boundary Waters, and that there is a high likelihood of acid mine drainage from these ores, and that the drainage from the mine is likely to be highly acidic.'' Mr.…





