ms. snider.y question is about governors of states, it in particular the governor of north carolina who intervened a group that was suing a company that had a feel of coal ash in the rivers. how can the governor intervene and do that? or does he have the power to do that? thank you. guest: so the clean water act -- and what was at stake and that spill did not entirely fall under the clean water act. the clean water act deals with directed discharges into the water. and it does cover a little bit of the fines relates to the fines that can be associated with that, but there are also other laws up there that deal with the handling of hazardous waste including coal ash, as you mentioned. there is a separate regulatory proposal there. but a lot of these laws embrace -- the phrase is "cooperative federalism." so you might have the federal government or epa setting an overall standard within a a state but then they delegated. every water covered under the clean water act, it is under the state is a this