I have talked in great detail about the various contaminants that end up in bottled water and the tap water that comes from your local water utility. The best way to reduce your exposure to impurities in your water is by using a home water filter system. Many homeowners already have a water filter system for their refrigerator's ice and water dispenser. A refrigerator water filter is the easiest way to filter water and should be replaced about every 6 months to maintain optimal filtration. If you do not have a filter system in place already, a great place to start is by finding out what is in your water.
The Environmental Working Group has compiled reports from water utilities across the country to give you easy access to your water quality report. Once you know what contaminants are present in your water you can make a better decision about what type of water filter to use in your home. I have attached my own water report as an example. As you can see the water is tested regularly and certain chemicals are consistently tested higher than health guidelines, but are not considered to be over the legal limit. So my water utility is not breaking the law, but my water is still unsafe to drink.
Because of this I do not drink any water from the tap in my apartment unless it has been filtered first. I use a Brita faucet filter that was easily attached to the kitchen sink to filter water for drinks and cooking. It works great and took about 5 minutes to set up.
There are many ways to filter the water that enters your home and reduce the contaminants in it. Whatever kind of water filter you choose just make sure that it has been certified by the NSF, an independent organization that tests filters to make sure their filtration claims are accurate. Once you have a water filter that reduces impurities in your water you will probably notice that it tastes better too! A sweet bonus.