A dam holding back mining waste from Brazilian miner Vale is at risk of collapsing, a government audit says.
The same company was responsible for two tailings dam collapses since 2015 that unleashed millions of gallons of toxic sludge and killed hundreds of people in Brazil’s southeastern state of Minas Gerais.
The retired Xingu dam at Vale’s Alegria iron ore mine in Mariana — the same municipality where a Vale tailings dam collapsed in November 2015 in what’s considered Brazil’s worst environmental disaster to date — is at “serious and imminent risk of rupture by liquefaction,” according to an audit report from the Minas Gerais state labor department (SRT), cited by government news agency Agência Brasil.