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King County Water District 54 Boil Water Advisory Rescinded
Des Moines - Customers of King County Water District #54 in southwest King County no longer need to boil their tap water. Test samples show the water now meets safe drinking water standards including an absence of E. coli bacteria. The district serves parts of Des Moines and Normandy Park.
The water district issued the boil water advisory on Saturday June 17, 2023 after E. coli bacteria were detected in routine water quality monitoring samples. Department of Health guidelines state customers must be notified of an advisory within 24 hours.
State and local health departments worked with Water District #54 through this process. The state Office of Drinking Water inspected the water system with district staff on both June 20th and June 22nd and found no obvious source of contamination. The district staff completed inspections, water quality sampling, disinfection, and flushing to resolve the contamination problem.
No confirmed cases of illness linked to the water system have been identified.
If you have shut off or not used fixtures, water fountains, ice machines, soda machines, and/or other equipment over the past several days, flush the fixture or equipment until there is a change in water temperature before putting it back in service.
The District would like to thank Highline Water District staff, and the many community member volunteers that helped respond to this emergency.
King County Water District #54 encourages customers with questions to call (206)878-7210.