By Marta Nogueira
MARIANA, Brazil, March 15 (Reuters) - In November, Marcos de Freitas lost his home and everything he owned when a dam burst at a nearby mine released a flow of mud that buried his village.
Now, sitting in a house paid for by the company responsible, he wants the mine to reopen.
"I have nothing to complain about," said the heavy set 55-year-old retired miner who fled his house, one of the oldest in the destroyed village of Bento Rodrigues, when the mud was up to his ankles.
"Samarco has to start producing again in order to create jobs," he said. Samarco, which is jointly owned by Vale SA VALE5.SA and BHP Billiton BLT.L , is the mine operator.
The flood of mining waste, known as tailings, killed 19 people, left about 800 homeless and polluted a major river, in what the government called Brazil's worst-ever environmental disaster. But Freitas' view is widely held in Mariana, just 25 km (16 miles) from the mine.
The historic town of 60,000, built on gold mining during the Portuguese colonial era, relies on the red iron ore in the surrounding hills for nearly 90 percent of its revenue.
Since the mine closed four months ago, the line at the unemployment agency has lengthened steadily as those looking for jobs surged from 300 to 1,900. It could grow longer still if Samarco starts to lay off its 3,000 direct employees.
On Saturday, about a thousand people marched through the town center's cobbled streets demanding the pit reopen. "Justice yes, unemployment no!" they shouted.
Mayor Duarte Junior worries that government agencies are dragging their feet because of the high profile of the disaster.
"If Samarco does not reopen we will start to have a problem. ... We are reaching our limit," Junior said in his office in City Hall. "I ask the bodies responsible to analyze Samarco's case as a priority."
The company needs permission from the state's environmental agency, Semad, and federal mining regulator DNPM. Geraldo Abreu, head of environmental regulation at Semad, admits were it not for the spill, a license to restart would be simple.
He said no corners would be cut, even though the application may be given priority: "Imagine if we jumped a stage and there was another accident."
Rising calls for a restart make many nervous. Prosecutors partially blame the spill on lax regulation and a decentralized licensing system that was too easily influenced by economic heft. They worry nothing has changed.
"Money is speaking loudest," said Antonio Carlos de Oliveira, a state prosecutor in Mariana and part of the task force set up to bring an environmental case against Samarco.
"There's no way to ensure the minimum conditions of security are respected or that the environmental bodies will make proper supervision."
PLAN TO REOPEN
The cause of the disaster remains unknown. An investigation is not expected to publish findings until mid-year, but Samarco says it can restart reduced production without constructing a new tailings dam and do so without risk of another disaster.
"We do not work with the scenario that the mine will not reopen," Samarco's chief executive, Roberto Carvalho, said in a recent interview. expects Samarco to restart by October at an annual rate of 19 million tonnes of iron ore pellets, down sharply from 30 million tonnes before the spill. Tailings will be stored in old pits without need to build a new dam.
The company can run at this reduced rate for about two years before a longer-term solution for the tailings is needed.
At that stage, things could become more complicated.
Following the disaster, some mining executives expressed concern over the safety of the dam's design, known as upstream, a type of construction widely used to store tailings at mines across the world. A dam that broke at the Mount Polley copper mine in western Canada in 2014 was also an upstream design.
The International Council on Mining and Metals, an association of more than 20 mining companies, is looking into tailings management following the Samarco disaster but said it was too early to discuss its findings.
Carvalho said Samarco was considering options for its tailings, but would await the investigation before deciding. The mine has enough ore to run for another 50 years.
Back in Mariana, 27-year-old Genivaldo Nascimento waits for the job center to open. A trained mechanic, he was recently laid off by one of Samarco's suppliers.
"I have never been unemployed before. I am desperate. I have two children to look after," he told Reuters as he queued in the early-morning light.
He feels the authorities are to blame for not letting Samarco restart: "I'm angry because they are damaging Samarco." (Additional reporting and writing by Stephen Eisenhammer; Editing by Daniel Flynn and Leslie Adler)