FILE - In this Aug. 7, 2011 file photo, Eddie Ray Roberts, superintendent of the city's waste and water department walks on the dried bed of Lake E.V. Spence in Robert Lee, Texas. After years of ... more 
FILE - In this Aug. 7, 2011 file photo, Eddie Ray Roberts, superintendent of the city's waste and water department walks on the dried bed of Lake E.V. Spence in Robert Lee, Texas. After years of diminishing water supplies made even worse by the second most severe drought in state history, some communities are resorting to a plan that might have seemed absurd a generation ago: turning sewage into drinking water. (AP Photo/Tony Gutierrez, File) less 
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Associated Press | Photo By Tony Gutierrez, File
Wed, Aug 10, 2011 4:12 PM EDT