Tap water in the United States is generally safe, but there are exceptions due to contamination from various sources. Filtered water can improve taste and remove impurities, but not all filters are equally effective. Bottled water is not always better than tap water and has a significant environmental impact. Boiling water kills bacteria and viruses but does not remove all dangerous contaminants. Stay informed and take steps to ensure your water is safe to drink by utilizing resources like the EPA and National Sanitation Foundation.