Washington Water is pleased to report that construction of our new arsenic, iron, and manganese removal treatment plant is now complete, and effective Monday, November 16, 2026, it will be going online.

As part of the new water quality treatment process, chlorine will also be added to your water system going forward to provide disinfection treatment. Chlorination kills or inactivates harmful microorganisms that can potentially cause illness and is also used for its residual properties to protect public health. Chlorine remaining in the water supply is available to fight against potential contamination in the water distribution and storage systems that might enter through leaks or pipe breakages.

The targeted chlorine residual concentration in the distribution system is much lower than the 4.0 ppm federal and state maximum residual disinfected level for drinking water. However, if the chlorine odor or taste ever becomes overly noticeable, please do not hesitate to call our Customer Service Center.

If you have tropical fish and are concerned about chlorine in your water, please check with your local pet store for information on how to remove chlorine from the water. De-Chlor water conditioner is commonly used to remove chlorine from fish tanks.

If you need additional information, please call our Customer Service Center at (877) 408-4060, or email us at [email protected].