bbl). Social effects Although strongly criticized by indigenous leaders, the president of Brazil's EPE claims they have popular support for the dam. On 20 April 2010 Folha de Sao Paulo poll showed 52% in favor of the dam. The dam will directly displace over 20,000 people, mainly from the municipalities of Altamira and Vitória do Xingu. Two river diversion canals wide by long will be excavated. The canals would divert water from the main dam to the power plant. Belo Monte will flood a total area of . Of the total, of flooded area will be forested land. The river diversion canals will reduce river flow by 80% in the area known as the Volta Grande ("Big Bend"), where the territories of the indigenous Juruna and Arara people, as well as those of sixteen other ethnic groups are located. While these tribes will not be directly impacted by reservoir flooding, and therefore will not be relocated, they may suffer involuntary displacement, as the river diversion negatively affects their fisheries, groundwater, ability to transport on the river and stagnant pools of water offer an environment for water-borne diseases, an issue that is criticized for not being addressed in the Environmental Impact Assessment. Among the 20,000 to be directly displaced by reservoir flooding, resettlement programs have been identified by the government as necessary for mitigation. Norte Energia have failed to obtain free, prior, and informed consent from the Juruna and Arara indigenous tribes to be impacted by Belo Monte. The project would also attract an estimated 100,000 migrants to the area. An estimated 18,700 direct jobs would be created, with an additional 25,000 indirect jobs to accommodate the surge in population. However, only a fraction of the direct jobs will stay available after the project's completion, which critics have argued to spell economic disaster rather than economic prosperity. The influx of immigrants and construction workers has also led to increased social tension between groups. Indigenous groups report attacks and harassment, and in several occasions the destruction of property and the death of indigenous persons as a result from constructing and (illegal) logging activities. External researchers indicate that the majority of the Belo Monte dam's energy output will be relegated towards the aluminium industry, and will not benefit the people living in the area. However, Norte Energia released a clarification note stating their concern with the socioeconomic development of the area, including the