Original post date:
Yesterday, we notified you that some customers in your area of Carson were experiencing taste, odor, or color in their water due to an issue in the treatment maintenance process. We’d like to provide an update to you on our flushing and testing efforts. After multiple rounds of flushing, we believe remaining traces of the discolored, salty water have moved out of the water system and that these aesthetic issues should have stopped. If you experience any residual aesthetic issues, please contact us at 310-257-1400. Additional field testing also indicates that the water continues to meet federal and state drinking water standards set to protect public health during this time. Again, we apologize for any inconvenience this may have caused and thank you for your patience.
September 3, 2026
Este aviso contiene información muy importante sobre su agua potable. Para una copia en español, favor de llamar al sistema de agua (310) 257-1400.
Today, September 3, we were notified of taste, odor, and color issues affecting some customers in the area shown on the map below. This was due to an issue in the treatment maintenance process. An ion exchange regeneration process was in progress when the treatment plant shut down, as designed, in response to a high-pressure alert. When operations were restored, a small amount of discolored, salty water from the regeneration process was inadvertently introduced into the distribution system instead of being directed to a separate tank, which is designed to receive and contain this flow.
As a result, some customers in this area may notice discolored water and/or a salty taste. Although these aesthetic impacts may be noticeable, preliminary information concludes that the water continues to meet federal and state drinking water standards. Crews have since been conducting multiple rounds of flushing to clear the affected water out of the water system.
Although this is not an emergency, we want to let you know what happened and ask our customers in this area who may be experiencing taste, odor, or color issues to flush their tap until the water clears. Cal Water crews are continuing to flush the distribution system and collecting additional water quality samples out of an abundance of caution to verify that normal water service has been restored.
Crews will work as quickly as possible to move any remaining affected water out of the system and complete testing. We thank you for your patience during this time. If you have any questions, please contact us at (310) 257-1400.

