Salem uses fluoridation chemical that Portland's hotly debating

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Geren Island Water Treatment Facility
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Geren Island Water Treatment Facility
The yellow pipes that carry the fluorosilicic acid from tanks (above) to pumps (one shown in the background) and then to water mains are show here. The grating on the floor is to drain the fluorosilicic acid into a sealed holding tank below in the event the tanks leak. (Photo: Gino Corridori/KATU News)