Hard water is a term used to describe water with a high dissolved mineral content of calcium and magnesium. The increasing hardness levels come primarily from our area's naturally-hard groundwater mixing with Central Arizona Project (Colorado River) water.
Hard water is safe to drink and not a health risk. Tucson Water offers a handy infographic with tips to reduce the effects of hard water. Display, download, or print a one-page pdf from the image below or request that the document be mailed to you.