Of course, this is just what they are planning. Look at fluoridation, buying the REA building on Third Street, etc. The city always seems to drive across the bridge to see if it's built. Also, it appears that backflow, thermo expansion, outside faucets and ball cocks will all be used. The outside faucets prevent outside water from the hose from entering the house.
Ball cocks prevent the toilet water from coming in.
The automatic washers have a form of a backflow preventer, as does the sprinkler system. So that stuff prevents all the nasty things from entering our home's water supply. The backflow and thermo expansion devices prevent our water from entering the city's water system. I don't think we should trash the whole deal, just for once know what we're doing before we start out. Stop and ask directions.