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PG&E ordered to inspect gas pipeline system after blast

PG&E ordered to inspect gas pipeline system after blast 13 Sep 2010 California regulators have ordered utility PG&E Corp to inspect its natural gas pipeline system following an explosion that destroyed a neighborhood in a San Francisco suburb last week, killing four people. The California Public Utilities Commission (CPUC) asked PG&E to immediately conduct an integrity assessment of its natural gas pipeline system. The regulators want the utility to survey all natural gas lines, particularly those that carry gas at higher pressure and those in areas of highest population density.