The breakdown of a dam that slaughtered at any rate 250 individuals in Brazil in January could have been avoided if its proprietor had revealed imperfections to specialists, the mining controller says. 

The National Mineral Agency (ANM) said in an explanation that mining goliath Vale had neglected to report notice signs. 

An ocean of waste from the Feijão dam immersed a flask, workplaces and ranches in Brumadinho, in Minas Gerais state. 

It was Brazil's most exceedingly terrible mechanical mishap. 

The debacle additionally raised worries that other mining dams in Brazil could be in danger of breakdown. 

"On the off chance that ANM had been accurately educated it could have taken prudent steps and constrained the organization (Vale) to take crisis activities that could have stayed away from the calamity," the announcement from ANM said. 

The controller's report, refering to inside organization records, nitty gritty a few issues that it said Vale ought to have detailed. 

The first was in 2018 when Vale introduced even waste pipes and discovered dregs in the seepage water. 

Peruse more on the dam breakdown: 

Vale: The pride of Brazil turns into its most loathed organization 

Inside the town wrecked by flooding slime 

Brazil's dam calamity: Looking for bodies, searching for answers 

ANM head Victor Bicca told a news meeting this was a stressing sign that ought to have been accounted for right away. 

"The genuine actuality is that when there is residue it must be accounted for. That is all. It wasn't. In the event that it had been conveyed, the region would promptly have been submitted to every day reviews," he said. 

"In any case, we didn't have the foggiest idea what was going on." 

Vale currently faces in excess of 20 new fines from the controller. 

In its own announcement, Vale said it would dissect the report however couldn't remark further. 

Vale and German wellbeing firm Tüv Süd as of now deal with criminal indictments over the dam breakdown. 

In September, police said the two firms had utilized distorted archives that expressed the Feijão dam was steady. 

In July a Brazilian judge requested Vale to pay remuneration for all harms brought about by the breakdown, saying that the organization was liable for fixing every one of the harms including the financial impacts. 

That month, messages rose that demonstrated Tüv Süd's own investigation of the dam at first neglected to meet authority necessities. 

The structure that crumbled was a "tailings" dam - a bank loaded up with squander item - and many years of waste from the close by mine had been heaped up and grassed over. 

Tailings dams are defenseless against "liquefaction", when, for different reasons, the strong material starts to act and move like a fluid, making them helpless against breakdown.