If you can drink your tap water, you can brew with it. chlorine (or rather chloramine) may not even be at high enough levels to matter.
in Detroit, they probably are. Here in Lincoln, I don't even worry about it.
however, if you're goal is to make true to style beers of the world, then you might need to monkey around more with water chemistry to achieve the right pH and hardness. you need soft water for a pilsner but harder water for a good irish stout.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10