Yes, but that stuff is still going on, they should mandate the end of those systems.
Want more stupidity? In Maine, you can’t dump plowed snow into the rivers.
Might get salt into the ocean.
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.