The United States has excellent drinking water, pretty much everywhere. Issues of taste are usually caused by old pipes on the "last mile" of the water's path. So, buy a Brita filter. That's a market that actually makes sense.
IMO Brita filtered water tastes worse than the water out of the tap. My parents bemoan unfiltered water, I'm the opposite. For the life of me I can't drink filtered water because I don't find it refreshing as it taste clinically sterile.