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TOLEDO, Ohio -- Toledo officials are stressing that the city's water is safe to drink as they continue to monitor for the toxin produced by Lake Erie algae blooms that shut down services two weeks ago to about 400,000 people.

Officials say tests on untreated water coming into a city plant are showing a "strong presence" of the toxin microcystin, but the treated water is safe.

Customers might notice a film on tap water in cups or containers. Officials say that is not harmful and comes from alum in treating the water to remove the toxin. Customers also might notice more of a chlorine odor because chlorine also was slightly increased to treat the water.

The city posted the information Saturday on its Facebook page.

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