Planebuilder66,
"Stormwater" is never treated because its just too expensive, even in Connecticut. In fact most cities will fine a homeowner for plumbing runoff into a sewer line because it overwhelms their facility. Sewer water on the other hand gets a lot of filtering, remediation, aeration etc to get it back to something resembling water and it costs a lot of money.

I think you may be thinking of "Surface Water" which is a term used to distinguish water in a reservoir somewhere from aquifer or subsurface water. A link to Connecticut's policy on "stormwater" [link=http://www.ct.gov/dep/cwp/view.asp?a=2721&q=325702&depNav_GID=1654]here.[/link]

Guys, don't interpret my comments as some self-righteous tree hugger. I'm not. I just wanted to share some info, that's all.