http://www.nytimes.com/2007/11/27/us/27conserve.html?_r=1&hp&oref=slogin
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From Sewage to Drinking Water!
FOUNTAIN VALLEY, Calif. It used to be so final: flush the toilet, and waste be gone.
But on Nov. 30, for millions of people here in Orange County, pulling the lever will be the start of a long, intense process to purify the sewage into drinking water after a hard scrubbing with filters, screens, chemicals and ultraviolet light and the passage of time underground. FOUNTAIN VALLEY, Calif. It used to be so final: flush the toilet, and waste be gone. ... more
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http://www.nytimes.com/2007/11/27/us/27conserve.html?_r=1&hp&oref=slogin
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