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Hetch Hetchy Reservoir

Hetch Hetchy Reservoir (credit: water.ca.gov)

SF Rejects Measure To Restore Flooded Hetch Hetchy Valley

San Francisco voters rejected overwhelmingly a measure that sought to restore of flooded gorge in Yosemite National Park that is used as a city reservoir.

11/07/2012

(credit: Sean Gallup/Getty Images)

Hetch Hetchy Water Treatment System Zaps Bugs With UV Light

A high-tech water-treatment system is making some of Northern California’s cleanest water even cleaner.

07/21/2011