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淡水河谷的Gongo Soco矿区的尾矿坝距离Brumadinho约40英里(64公里)。
环境部秘书长Germano Vieira在与检方及VALE商议后作出评估。
淡水河谷在上周表示，Gongo Soco矿区的尾矿坝将面临崩塌的风险。维埃拉表示，在Gongo Soco矿区的堤坝滑坡可能引发大坝崩塌。
淡水河谷表示：“在极端情况下，我们的目标是将事件对人员和环境的影响降到最低。”
