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By
kcarney
Mr. Handyman of California, In...
in Plumbing
Written Apr 30, 2008
Where does our water come from?
The regional water system provides water to people in San Francisco, Santa Clara, Alameda and San Mateo counties. Eighty-five percent of the water comes from Sierra Nevada snowmelt stored in the Hetch Hetchy reservoir situated on the Tuolumne River in Yosemite National Park. The remaining fifteen percent of water comes from runoff in the Alameda and Peninsula watersheds. This local water is captured in reservoirs located in San Mateo and Alameda counties. ...
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