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Important Public Notice: Upcoming free chlorine conversion

November 6, 2025 in HCWCID 1HCWCID 2NewsPublic Notices

IMPORTANT NOTICE FROM THE WATER SUPPLIER FOR HAYS COUNTY WCIDS 1 & 2

Dear Hays County WCID 1 & 2 Residents,

The West Travis County Public Utility Agency (WTCPUA) will temporarily convert the disinfectant used in the distribution system from chloramine to free chlorine. The conversion will begin on November 14, 2025, and continue through December 13, 2025. 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.

The WTCPUA has chosen to implement a temporary disinfectant conversion for the following reasons:

  • Maintenance of distribution lines

  • Disinfectant Residual Reset

  • Maintenance of Storage Tanks

Please share this information with all people who drink this water, especially those who may not have received this notice directly (i.e., people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.

For additional information about drinking water disinfection and the free chlorine conversion process, please refer to this publication from the Texas Commission on Environmental Quality (TCEQ).

If you have questions regarding this matter, you may contact the WTCPUA at 512-263-0100.