Why Is Chlorine Used To Disinfect My Drinking Water?

State and federal regulations require the disinfection of all public water supplies. The EPA and other health agencies recognize that using chlorine is one of the most effective ways to protect public health from disease causing organisms that can be found in surface waters. Because chlorine used alone can react with natural materials in the river water to chemically form disinfection by-products such as Total Trihalomethanes (TTHMs), the Authority has been evaluating chlorination procedures to reduce the formation of TTHMs. However, we will continue to ensure that the water distributed to your home has a sufficient "chlorine residual" to prohibit the growth of bacteria and other organisms, to not increase TTHMs, and to not have an offensive chlorine smell and/or taste.