By John Sepulvado, CNN
(CNN) - Since 2010 the U.S. Environmental Protection Agency has been seeking to regulate coal ash as hazardous waste. The move came after a massive coal ash spill at a power plant in Tennessee in 2008. But the plan to regulate coal ash has run into stiff opposition from power and business groups. Now the EPA is delaying a decision until after this year's presidential election, leaving a host of people and businesses waiting too.
♦ Coal ash left over from coal fired power plants is toxic when mixed with water. According to the EPA it contains lead, uranium, cadmium, mercury and other heavy metals.
♦ Coal ash is used in construction and in agriculture. Scientists say in a solid state it's not hazardous.
♦ Power companies fear designating coal ash as hazardous will be too costly. They are lobbying against regulations.