To provide our customers with the safest water, Renton adds chlorine to the drinking water supply as a secondary disinfectant. Chlorine is added to the water at a rate of one part per million to destroy any harmful bacteria that may enter the water distribution system. Fluoride is also added to the water at a rate of one part per million to help prevent tooth decay. In 1985, the citizens of Renton voted to have fluoride added to the City s drinking water. In January 1999, the City of Renton began to treat its water supply with sodium hydroxide to make it less corrosive to pipes and home plumbing.
Some people choose to drink bottled water because they believe it is safer than tap water.
This is not necessarily true. Tap water is regulated by the Environmental Protection Agency and, as required by the Agency, is tested extensively. The results of these tests are provided in this report. Bottled water is regulated by the Food and Drug Administration. The use of bottled water or a home water treatment device is a personal choice, which may be based on taste preferences.