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Des Moines Water Works employee Bill Blubaugh collects a water sample from the Raccoon River, Thursday, June 3, 2021, in Des Moines, Iowa. Each day the utility analyzes samples from the Raccoon River ...
In 1945, Grand Rapids, Michigan, made history — as the first city in the world to add small amounts of fluoride to its public water supply. At the time, studies showed communities with higher levels ...
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