lab tests were done showing "notably elevated concentrations of sulfate, aluminum, iron, manganese, boronium." the state says the leak doesn't impact the overall health of the river, but is illegal, a violation of the clean water act. yet environmentalists like frank holleman say that, over the years, the state never forced duke to clean up its ash ponds, under both democratic and republican administrations. how powerful is duke energy in the state of north carolina? >> holleman: it's the most powerful entity in the state of north carolina. it spends millions of dollars on political contributions, and it has traditionally had a very close relationship with the state regulators. >> stahl: just this year, governor mccrory cut the budget and staff of the specific department that inspects the ash ponds. the state legislature did pass a law in august requiring duke to clean up its plants, but only after the company had already volunteered to do that. earlier, when holleman tried to sue duke, he was thwarted by the state, which stepped in and negotiated a settlement that allowed duke-- you gues