Cross-section of wall with corrosion pits, in Rupture of Florida Gas Transmission Pipeline and Release of Natural Gas, by NTSB, for SpectraBusters.org, 4 May 2009
National Transportation Safety Board Pipeline Accident Brief
http://spectrabusters.org/blog/2014/02/methane-pipeline-blew-up-onto-florida-turnpike-next-to-high-school/
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