Coal and Water Pollution | Union of Concerned ScientistsDec 6, 2017 . Coal and Water Pollution. Lakes, rivers, streams, and drinking water supplies are all heavily impacted by coal mines and power plants. Contents. Coal mining; Coal ash; Water use. Coal is more often associated with billowing smokestacks than it is with water. But virtually every stage of coal's lifecycle—from.coal process power plant pollution,Coal fired power plant - Energy EducationThis process helps reduce air pollution, as it eliminates around 50% of the ash content in the coal. This results in less sulfur dioxide (SOx) being produced, along with less carbon dioxide (CO2) due to higher thermal efficiencies. When power plants remove water from the environment, fish.