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文章

2020年10月21日

作者:
Mining.com

Brazil: Vale reports 33 of 104 dam structures fail stability assessments

"Vale reports 33 of 104 dam structures fail stability assessments," 1 October 2020

Vale (NYSE: VALE) reported on Thursday that 33 of its 104 dam structures in Brazil failed to receive positive stability assessments from the company’s dam monitoring system.

Of those dams that have not received positive stability assessments, 32 are in the ferrous metals operations.The Xingu dam, in Mariana, was elevated to risk level 2, with level 3 on the scale indicating imminent risk of collapse.

Xingu, which serves the Alegria iron ore mine, was also reclassified from a drainage structure to an upstream dam, the same type of construction used in the Mariana and Brumadinho dams that collapsed...

Vale said it was taking measures to improve dam stability and is in the process of building containment walls around five of its dams...that are in the most critical condition...

Earlier this month, federal prosecutors said Vale has repeatedly failed to deliver on commitments to improve on safety made following last year’s disaster at Brumadinho...

Brazilian president Jair Bolsonaro sanctioned on Wednesday a bill that changes the rules of dam control and stipulates up to R$1 billion ($176 million) in fines for companies that fail to comply with safety standards...

The government established February 25, 2022 as the deadline for mining companies to eliminate the dams built in this model.