We're often on the same side, but on this one, I have to disagree.
My father lives in a rural part of a county. He doesn't have any sewers (septic or storm). He has a septic tank which he maintains at his expense. The creek in his back yard occasionally overflows, and he is the one that cleans up the debris. Further up the road, the creek does cross under the road, and often the water will flow over that road. You either drive the other way, or go through it.
The storm water tax provides him with absolutely no services at all. The purpose of this tax is to upgrade and seperate the storm and septic sewers in cities. Out in the rural counties, people choose to live further away to avoid these taxes, at the expense of not getting these services. Taxing people for services that they do not receive is immoral.