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June 04, 2021

On May 28, 2021, the City of West Palm Beach notified the Florida Department of Health in Palm Beach County (DOH) that elevated levels of cylindrospermosin, a cyanobacteria toxin, were detected in the City of West Palm Beach Water Treatment Plant, which is sourced by Clear Lake.

Upon notification, DOH responded and issued a Public Health Advisory within the same day. DOH coordinated with the Florida Department of Environmental Protection (DEP) to support the analysis of collected samples in the area and provided technical assistance for water treatment.

Following analysis of sampling results for June 1, 2021 and June 2, 2021, all results were below the Health Advisory Limit or non-detect for cylindrospermosin.

As such, DOH in Palm Beach County has determined that the water system can resume operations and all customers can use tap water for drinking.

Customers of this utility should flush their water systems for at least five to ten minutes prior to resuming use by turning on hot water taps and then cold water taps. Customers should also change water filters, including the one in your refrigerator and your ice maker. All ice should be discarded.

The City of West Palm Beach Water Treatment Plant has an interactive GIS map regarding service in their area.

DOH, DEP and local partners continue to coordinate to ensure protection of public health.

Please submit any media questions to

About the Florida Department of Health

The department works to protect, promote and improve the health of all people in Florida through integrated state, county and community efforts.

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