Canyon Lake Water Treatment Plant remains offline

The Canyon Lake Water Treatment Plant remains offline for water quality pilot testing and upgrades. The plant normally runs from April 1 through October 31 and produces 10 percent of Elsinore Valley Municipal Water District’s total water supply.

The plant has been offline since elevated levels of PFSA chemicals were detected in the runoff and the state implemented new water quality requirements for a man-made chemical group called PFOA and PFOS.

PFAS are man-made contaminants that are found in thousands of products that are used daily, including shampoo, clothing, cleaning products, food wrappers, non-stick cookware, firefighting foam, and carpet. 

In March 2020, PFAS were detected in Canyon Lake above State Response Levels and the water source was taken offline. Until its PFAS levels are treated and reduced, EVMWD is replacing this supply with imported water from Metropolitan Water District. 

EVMWD has been testing several potential treatment options. The results will determine which type of technology will be installed. This process will take at least another two to three years.

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