Review closely some of the cost assocaited with this type of regulation and make sure that the agency is  aware of the final construction cost to the developer/municipality. Try to be more practical with where are greatest improvents in water quality are with the least expense. I see 1/2 acre parking lots at state owned schools with $60,000 worth of biortention pond construction and you can drive 1/2 mile from there and see cattle parading in the local streams. Look closer at more practical concepts like disconects and rainwater reuse.