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Tag: Chih-Hung Lee

March 2, 2011 | 9:00 am

“Duration of Fire” Called Inconsquential in PG&E Memo Rejecting Shut-Off Valves

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The National Transportation Safety Board began three days of hearings yesterday on last September’s natural gas pipeline disaster in San Bruno. Highlights of the first day’s testimony center on PG&E’s admission that after a 2006 review of automatic and remotely operated pipeline-shutoff valves, it decided that the devices wouldn’t do much to protect life or […]

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