Drinking water, including bottled water, may contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk.
From algae to Yucca Mountain, the information in this section provides the facts about a variety of water-related issues. Choose a topic by clicking on the arrow in the "For more information" box above.
For more specific details on contaminants tested in the water supply and water analysis data, see these Web pages: