On April 19, the EPA issued new effluent guidelines regarding the regulation of discharges of toxic pollutants from nuclear, coal, oil, and natural gas-fired power plants. The changes are the first since 1982 and are aimed at addressing mercury, zinc, phosphorus, selenium, and other pollutants discharged to surface waters via coal ash ponds, wastewater, and flue gas desulfurization systems installed in power plants to control the emission of sulfur dioxide. The proposed standards would be phased in from 2017 to 2022.