2024 Update
CVWD is conducting a comprehensive study. This study aims to evaluate all the best available technologies for treating drinking water and ensure compliance with the state's chromium-6 drinking water standard, adopted on April 17, 2024.
More information on the progress of the study is coming soon.
2017 Demonstration Project
CVWD conducted a full-scale demonstration project in 2017, using stannous chloride treatment for the water system serving Indio Hills, Sky Valley, and some areas in and around Desert Hot Springs. The project successfully reduced Cr-6 to Cr-3 using stannous chloride, an approved drinking water and food additive.
The stannous chloride treatment option is substantially less expensive and impacts the community and the environment less than other methods.
However, more extensive research was needed to understand how the treatment works within CVWD's pipeline delivery system.