3. Different mining operations vary markedly from one another in the degree to which they leave waste rock behind in the voids. Except where the ratio of overburden to coal is in low single figures. the bulkingup of the cast overburden results in complete backfilling of the mine void by the time mining is complete.
Since about 30 %–40 % of the mined product must be managed as waste, coal waste management is a very important part of the cost of the mining operation particularly when you consider the environmental impacts of coal waste.
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Information about wetlands, development of state and tribal programs, funding, monitoring and protecting wetlands, coastal and other types of wetlands
FullText Paper (PDF): Coal mining waste management and its impact on the groundwater chemical status exemplified in the Upper Silesia coal Basin (Poland)
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Radioactive waste is waste that contains radioactive material. Radioactive waste is usually a byproduct of nuclear power generation and other appliions of nuclear fission or nuclear technology, such as research and medicine.
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Mining: In 2004, mining sites contributed 52 percent of all hazardous waste sites loed on, or next to, Tribal Lands. The commodities mined from these sites include, but are not limited to, gold, coal, sand and gravel, uranium, copper, and lead.
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EPA sets limits on environmental radiation from use of radioactive elements. The Radiation Protection website describes EPA's radiation protection activities, regulations and supporting information.
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The environmental impact of the coal industry includes issues such as land use, waste management, water and air pollution, caused by the coal mining, processing and the use of its products.