The gas company's pipeline burst and killed eight people in San Bruno, California last year, due to a faulty and unmaintained weld seam on the pipe. The company later admitted none of its documentation on that pipe said it contained a weld seam, which requires particular tests to ensure its safety.
A state agency demanded that PG&E officials produce documentation on their other California pipelines in populated areas by March 15. Democratic Rep. Jackie Speier told the Chronicle that PG&E President Chris Johns informed her the company couldn't locate the records for 30 percent of those pipes. The company will have to do expensive high-pressure water tests on any pipes that aren't documented adequately within its system.
Earlier this week, an entire town in Ohio was evacuated after Dominion Gas-owned pipes leaked.
(San Bruno, California after the gas pipe explosion: AP.)