In environmental news, President Trump has nominated Dow Chemical lawyer Peter Wright to head up an Environmental Protection Agency unit tasked with overseeing the disposal of hazardous waste and chemical spills at toxic Superfund sites. Meanwhile, new data says coal ash—the residual byproduct of burning coal—has contaminated groundwater with arsenic and radium and other toxic chemicals near coal-fired power plants across the country. The new data was released on Friday, only one day after EPA Administrator Scott Pruitt said the EPA would weaken federal regulations on coal ash disposal.