Government or official record
Pacific Gas & Electric Pipeline Rupture in San Bruno, CA
Pipeline and Hazardous Materials Safety Administration
Cross-File evidence ledger
Where this source supports the record
Each entry separates the File’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Engineering failures · 9 September 2010Open File evidence →
The San Bruno Pipeline Rupture and Fire
Line 132 rupture at Earl Avenue and Glenview Drive · United States
Why editors use it hereFederal pipeline-safety account of the release, emergency isolation, deaths, injuries, destroyed homes, and regulatory significance.
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Quick read
At about 6:11 p.m.
Reviewed 24 July 2026 -
Trigger and conditions
Electrical work at PG&E's Milpitas Terminal caused pressure changes in the transmission system.
Reviewed 24 July 2026 -
Uncertainty
Early reports gave different counts for destroyed and damaged houses and a slightly different pipeline mile point.
Reviewed 24 July 2026 -
Why it matters
The rupture began with defects buried for more than half a century, but its severity was shaped by contemporary records, regulation, monitoring, valve design, and emergency decisions.
Reviewed 24 July 2026
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Quick read