The Seattle Times

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ALAN BERNER / THE SEATTLE TIMES
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Friday, November 16, 2012

Questions over whether 4 buried reservoirs can withstand quake

This 2008 photo shows the underground Beacon Hill reservoir project. Seattle decided to replace open-air reservoirs with reinforced concrete vaults after the Sept. 11 attacks raised security concerns. Now there are questions about the underground vaults' strength in earthquakes.