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According to the information presented on Vale's website concerning dams in the area, dam 1 was built in 1976 and has a volume of 12.7 million cubic meters. Currently, the dam would not receive any materials because the enrichment of the ore in the unit is carried out dry, always according to the site.
The dam has no longer received residues since 2014
The State Secretary for the Environment and Sustainable Development (Semad) of Minas Gerais said, in a note , that the dam of Mine do Feijão was duly authorized. In December, the company obtained "a new permit for the reuse of waste stored in the dam and for its decommissioning (closure of activities)". According to Semad's statement, the dam has not received any residues since 2014 and the verifier has ensured the stability of the dam, according to a report written in August 2018. "The causes and responsibilities of the dam have event will be determined by the government of Minas Gerais, "says the note
. The Secretariat also reported that Vale, at 1337, had reported the breach of the Feijão mine discharge containment dam I. According to data from the State Environmental Foundation (Feam), Minas Gerais had 698 dams registered in 2017, of which 22 were considered at risk. This means that these structures exhibited stability "not guaranteed by the listener" or "the auditor has not found stability due to a lack of data and / or technical documents "
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