The water from your tap may not be safe. Even if your water looks and taste good it may contain harmful contaminants. Bottled water and private wells are not regulated by the US EPA. If you have a private well its up to you to test your water for harmful contaminants.
Drinking water for Bacteria in water, Lead in water, Pesticides in water, total Alkalinity, total Chlorine, total Hardness, pH (Acidity), iron, copper, nitrates, nitrites