Fact Sheet 2004–3032
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Drinking water is disinfected with chemicals to remove pathogens, such as Giardia and Cryptosproridium, and prevent waterborne diseases such as cholera and typhoid. During disinfection, by-products are formed at trace concentrations. Because some of these by-products are suspected carcinogens, drinking water utilities must maintain the effectiveness of the disinfection process while minimizing the formation of by-products. |
For additional information contact: Chief Scientist, Hydrology Branch of Hydrologic Research U.S. Geological Survey 409 National Center 12201 Sunrise Valley Drive Reston, VA 20192 |
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