Originally Posted by cdcox
The recycled water plant has a lot more steps in the treatment process. It takes effluent from the sewer plant, treats it, an dumps it into the drinking water reservoir. I think the regular treatment plants are located between the reservoir and your faucet. So water that is flushed down the toilet is treated by three different treatment plants before you drink it again: the sewage treatment plant, the recycle plant and the drinking water plant.
Maybe this is normal, but I learned something odd a while back. I was at a conference in the mountains, and one of the things we did was a boat tour of a lake. (It was an outdoor recreation conference.) The local guide said that swimming isn't allowed in the lake because it's part of Denver's water supply. I guess I wouldn't have thought that a few swimmers would really make a difference next to all of the dirt and rocks and raccoons washing crayfish and stuff.