Additional Links:

• The St. Louis County Water Company's web site gives information about the analysis and treatment procedures that are used for our local water supply.
• This site, from the Doulton Water Filters company, contains a wealth of information about contaminants in the water and how the contaminants are removed. Check out their "Six Chapter Training Guide to Water and its Problems" in particular.
• This tutorial developed at Washington University in St. Louis discusses the chemistry behind acid rain, an important contributor to contamination in the water supply.
• Another tutorial from Washington University in St. Louis provides more a detailed explanation of water hardness, and the strategies for dealing with this problem.
• This site contains a virtual tour of the Ames, Iowa Water Treatment Plant.