[Right Wing Assault]

The systems are NOT allowed for new cities.

To totally replace dual systems would require every street in old cities to be dug up. Hugh expense and tax increases.

The alternate is still expensive but not nearly as much. The giant tunnel sewers are capable of storing the mixed storm/sewage water for later processing. End result? No sewage gets dumped in the lakes and rivers.

Read the article about the tunnels in Cleveland. Good explanation.

[ROCKLOBSTER]

To totally replace dual systems would require every street in old cities to be dug up.

Why would anyone want to do that?

Why don't they just run smaller septic sewage pipes inside the larger existing storm sewers, and then reroute them appropriately at the treatment plant end?

Or is that too simple, and something that the worthless unions would oppose?