These ideas have been around for decades, and volunteer streamkeepers and wetlandkeepers have been pushing municiaplities for more infiltration for what seems like forever.

The best way to protect local creeks and urban and suburban watersheds is through the sponge concept of getting as much rainwater into the ground as possible instead of piping it away.

Heck, BC municipalities are supposed to have developed Integrated Stormwater Management Plans (ISMPs) that are supposed to have watershed protection components years ago, but many are nowhere near being fully implemented.