Boil water advisories are often immediate - like a check valve has failed unexpectedly and there is, this very instant, a risk if sewage in your tap water.
Hard to mobilize a city-wide door-to-door campaign with such urgency.
As a secondary option, sure. But it’s not always like a planned-for-months water main replacement.
The four channels OP listed do seem inadequate though.
Boil water advisories are often immediate - like a check valve has failed unexpectedly and there is, this very instant, a risk if sewage in your tap water.
Hard to mobilize a city-wide door-to-door campaign with such urgency.
As a secondary option, sure. But it’s not always like a planned-for-months water main replacement.
The four channels OP listed do seem inadequate though.