Granted, I understand and, to an extent, sympathize with the legal rationale for the state not having to adhere to 159 different set of water runoff standards, but it does smack of the state's ongoing blatant disrespect of local governance.
For while there's a logical argument to make that state entities aren't under the authority of local regulation, it's one that's devoid of the realities of the situation. Local ordinances are passed with local cultures, values and philosophies in mind, and the state is openly saying it could care less about those things.
If nothing else, the state should enact some sort of standard that takes the toughest standard and the weakest standard and develops some sort of state-wide happy medium for its work.