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Conversion from Chloramine to Free Chlorine


April 1 – 30, 2021

The Elm Creek Water Supply Corporation public water system, PWS ID 1550026, will temporarily convert the disinfectant used in the distribution system from chloramine to free chlorine. The conversion will begin on April 1 and continue through April 30. During this period, you may experience taste and odor changes associated with this type of temporary disinfectant conversion.

Public water systems are required to properly disinfect their water and maintain an adequate disinfectant residual in the distribution system. Chloramine, free chlorine combined with ammonia, is widely used as a disinfectant because it persists for long periods while also limiting the formation of disinfection by-product contaminants. Prolonged use of chloramine coupled with other factors that can affect water quality, such as high temperatures or stagnation of water, may result in the growth and/or persistence of organic matter within the pipes of the distribution system, which may hinder the ability to maintain an adequate disinfectant residual. A temporary conversion to free chlorine, partnered with flushing activities, helps to rid distribution pipes of this organic matter and improve the quality of your water overall.

Chloramine, like chlorine, must be removed from the water prior to use in dialysis machines and can be harmful to fish and amphibians. However, proper filters and dechloramination products will address these concerns. Persons currently undergoing dialysis or with a compromised immune system should consult their health care provider prior to the treatment to determine whether the change in disinfection will affect their treatment. Anyone who has a fish tank or pond should contact a pet or aquarium professional to determine the need for any adjustments to their treatment procedures during the free chlorine treatment.

Please share this information with all people who drink this water.

If you have questions regarding this matter, you may contact the Elm Creek Water Supply Corporation office at 254-853-3838.