you'll be fine. i've made beer with tap water that contains chloramines (which don't just boil off) and never had any off flavors in my finished brew.
really, its sanitizing with bleach solution and not rinsing well enough that can get you a medicinal off taste.
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