424 y spill (Peru) ration Mount Polley tailings breach Imperi al Metals III.T O [- 14,+14] - 0.46 4 0.00 0 1% - 0.06 3 10 0.0 0.0 Direct impact + spillove r Grasbe rg contam ination ruling Freep ortMcMo Ran FC X [- 14,+14] - 0.13 5 0.23 0 ns - 0.07 6 66. 7 33.3 Modera te spillove r Río Sonora spill (Grupo México ) South ern Coppe r SC CO [- 21,+21] - 0.07 6 0.48 8 ns - 0.09 3 10 0.0 0.0 Modera te spillove r Elk Valley seleniu m contam ination Teck Resou rces TE CK [- 21,+21] - 0.23 1 0.17 3 ns - 0.06 8 66. 7 0.0 Modera te spillove r
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