The torrent already moved for more than 500 km
(320 miles) and it is going toward the sea. From the 15 cities in the states of Minas Gerais and Espirito Santo
warned by Brazilian Geological Survey the torrent, already, passed by 11
cities, and continues to advance, through Doce River.
1) Dam Break
Two dams broke. The
first ruptured reservoir contained 55 million cubic meters of iron mineral
deposits. A second dam holding back seven million cubic meters of waste broke
shortly afterwards. (Making a total
of 62 million cubic meters of water and
mining waste).
An avalanche of mud and polluted water submerged
homes and vehicles in the district of Bento Rodrigues, at the town of Mariana,
in the Brazilian state of Minas Gerais, when two dams.
2) Who owns the dams?
The tailings dams are from Samarco SA, a joint
venture between Vale SA (50%) and BHP Billiton Brasil Ltda (50%).
Vale SA is a company widely known for its
constant disregard to social and environmental rights, causes numerous impacts
to the environment and human rights violations.
3) What is the situation at present?
The District is completely buried under toxic mud, with access possible
only by helicopter. There are countless homeless and so far have been counted
at least 6 dead, 28 missing. Three of the unaccounted are children, ages 4, 5
and 7. A rescue and salvage operation involving hundreds of people continues
the search, with the help of dogs and special equipment, for victims along the
flood plain downstream from the dams.
The torrent, carrying water and mud stained
with mineral waste from the mine, is now in the main stream of the Doce River
(Rio Doce), and reached the neighboring state of Espirito Santo, this Tuesday,
November 10. It already moved for more than 500 km and it is going toward the
sea. From the 15 cities in the states of Minas Gerais and Espirito Santo warned
by Brazilian Geological Survey the torrent already passed by 11 cities.
4) Environmental impacts
It is still difficult to list all environmental impacts. However, some
impacts are already happening and others already be predicted.
The sea of mud that came out from the breaking of the two iron ore
tailing dams devastated the fauna of the river basin. Environmental
damage in the area is immeasurable and according to the State Environmental
Police reports to blame the mining company. The dams break caused burial of
vegetation and fountains, sediment and siltation of water bodies. Those impacts
extend for hundreds of miles.
The damage to the environment surrounding the dam and beyond, roughly
speaking, may be chemical or physical. The first concerns the chemical soil
disruption, not only by iron, but also by other secondary metals discarded
during the mining process. One of the effects is that the chemical residues
have excess iron, will alter the pH of the earth.
The physical impact of the disruptions are concerning the amount of
sludge that is covering a wide area, burying vegetation covering springs and
silting rivers. The residue is poor in organic matter, i.e., does not favor the
growth of vegetation. Thus, what occurs is that this sludge will start to dry
slowly, creating a dried cover over the soil, hindering the water penetration.
Sediments are being dragged and deposited in the passages where the
current is weaker. This undermines the channels of the rivers, which can be
silted up, and become shallower or even diverted from their courses. Many springs
are being buried. The impact on water resources also affects the fauna,
especially fish and microorganisms that make up the food chain in rivers.
5) Situation of the dams before
The dam structure had reached its ceiling, from which should be
deactivated, according to the licensing commitments made by Vale/BHP Samarco in
2008, when the installation license was granted. Vale/BHP Billiton (Samarco)
increased its extraction of iron ore production capacity at its plant, in the
region, by 9.5 million tons a year in 2014. The increase in production did also
grow the volume of waste deposited in the broken dam. Each ton of ore processed
generates almost equal volume of waste.
Last year, the production was 25 million tons, 15% more than the
previous year. The largest volume of waste was close to 3 million tons in the
year, reaching a total of 21.9 million tons of sandy materials and sludge,
resulting from iron ore beneficiation. This data is from Samarco’s Annual
Sustainability Report 2014, published on the company website. The report makes
no mention of increasing the capacity of these reservoirs, or reinforcement of
these dams.
A technical report prepared by Instituto Prístino for the Minas Gerais
Environment Prosecutors’ Office and published at the Regional Superintendence
of Environmental Regularization (SUPRAM) website included a series of warnings
about the dam. It recommended, as a condition for renewing Samarco’s
license, a contingency plan in case of accidents, “given the presence of the
population in the community of Bento Rodrigues.” This report is dated to Oct.
21, 2013. Eight days later SUPRAM renewed Samarco’s license under
various conditions.
6) We Denounce:
a) Media and government officials do not relate Samarco to Vale and BHP
Billiton. Samarco is a joint venture of two
mining giants: Vale and BHP (Australian company recognized as the world's
largest in the sector).
b) The security protocols of the emergency plan were not implemented. Vale / BHP Billinton (Samarco) did not alert people in the area
that a breach had occurred. Some Bento Rodrigues residents said they learned of
the danger only when they saw massive clouds of red dust rising from the dam,
about four miles away.
c) This catastrophe is not an accident or fatality, but a crime. A technical report issued in 2013 warned the risk of a break in
the Fundão dam. This document was attached to the Environment Prosecutor's report,
at that time, when Vale / BHP Billinton (Samarco) made the application for
renewal of license for the dam. The Prosecutor's report indicated that there
was a risk of disruption of the dams. "The contact between the pile and
tailings dam is not recommended because of the risk of destabilization of the
pile mass and enhancement of erosion". However, mass midia, some sectors
of the government and the company are trying to pass the idea that the
disruptions of these mining tailings dams were an inevitable disaster and
should be consider as a natural disaster.
d) There is a promiscuous relationship between the State Government and the
Company. The Search and Rescue operations Center
is at the Mining Company Headquarters without public, mining workers or press
access. The management of an immense tragedy is being made within the four
walls of the mining company. Impossible not to be meddling of the company in
government decisions. Only shows that the government is responsible for the
deaths and damage from the mining companies. Minas Gerais state Governor gives
press conference at the company's headquarters.
e) Marine life will be also affect. The
contamination reached river Doce and will arrive at the sea, threatening marine
life at the coast of Espírito Santo state.
f) It is necessary to rethink the scale, methods and rates of mineral
extraction. The activity of large
mining has increased in scale and reduced fixed costs. The intensive search for
cost savings associated
with
the intensification of extraction increases the risk to workers, population and
the environment. The companies decide the rates of the extraction of minerals.
g) The environmental licensing system (authorization process) that is based
on self-monitoring and proprietary information produced by the venturers
themselves.
We alert and denounce a Project of Law (PL) No 2946/2015 of the governor
of Minas Gerais, Fernando Pimentel. This bill, which is being processed on an
emergency basis at the Minas Gerais State Legislative Assembly, aims to
streamline licensing and reduce the social control over the security of
priority projects for the state. The project enhances the advancement of mining
and other ventures without proper supervision, leaving the society at the mercy
of the high price to be paid by an irresponsible and unsustainable development.
A
few comments on tailings dams:
It is essential to
condemn the use of tailings dams. It is an anachronistic technology, highly
impactful and of great risk to the safety of people, mining workers and
communities located downstream of these structures.
For a long time
the environmental movement has criticized the form of extraction, which uses
large tailings dams and waste dump in addition to the open pit extraction. We
can no longer accept such practices, given the existence of alternative
technologies.
There are ways to
make a dry processing with magnetic separation. Even in the case of conducting
a wet treatment with water in the processing, it is possible to make a drain
disposal the material.
According to
report of the State Environmental Foundation (FEAM), in 2014, the latest
available, of the 735 existing dams in Minas Gerais, 42 have no guarantee of
stability, Despite the risks, these dams can continue to operate.
According to the
survey, 29 of these dams were not possible to guarantee stability and, at 13,
were not completed the audit for lack of documents. Vale / BHP Billinton
Samarco dams that collapsed in Mariana had received the approval of the
auditors -which considered stable.
JPIC & Mining
(Justice, Peace and Integrity of Creation & Mining) is project of the
Integrity of Creation Working Group (ICWG) of the JPIC promoters located in
Rome; the Romans VI (the JPIC animators of the different branches of the
Franciscan Family), and Franciscans International (the Franciscan NGO at the
United Nations). Contact: Br. Rodrigo Péret, ofm rodrigoperet@yahoo.com
No dia seguinte, 18 de novembro, chegou a
Uberlândia, para reforço da PMMG, o Pelotão de Choque de Uberaba e um
contingente de policias militares da cidade de Araguari. O clima ainda é tenso
e estamos preocupados.
