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Pacific Gas and Electric Co. has handed over several documents to federal investigators probing the San Bruno natural-gas pipeline explosion that detail 1988 repairs to a nearby section of the pipe for a flaw that, by law, should have mandated an inspection that could have prevented last year's disaster.

Read more:
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/07/30/MN7B1KDVEB.DTL&ao=all#ixzz1Tnabtnx4

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