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Mercer Island E. Coli Linked to Backflow?

Officials still don't know the source of the E. coli that showed up in Mercer Island's water system last week, prompting the "boil water" notice.  As they…

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Mercer Island E. Coli Linked to Backflow?

Officials still don't know the source of the E. coli that showed up in Mercer Island's water system last week, prompting the "boil water" notice.  As they continue the investigation, they are examining a potential source of the E. coli - cross connections between the domestic drinking water system…

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