I think you're wrong. I did extensive research on this prior to purchasing a home recently and the general consensus I found is that you need a pretty advanced water filtration system consisting of carbon + reverse osmosis filtration that requires yearly servicing. Some water companies do this, but most probably don't. You can also have a system installed in your house.
Your standard Brita filter doesn't even come close to filtering these chemicals.
Your standard Brita filter doesn't even come close to filtering these chemicals.