(10-24) 18:52 PDT SAN FRANCISCO -- A major Pacific Gas and Electric Co. gas transmission line serving the Bay Area ruptured during a pressure test Monday south of Bakersfield, just as the company was planning to boost gas levels on the pipeline to meet winter demand. The 34-inch transmission line that runs from the Arizona border to Milpitas failed during a spike test at 9 a.m., blowing a crater in an alfalfa field near the town of Weedpatch (Kern County), PG&E officials said. The line is one of two parallel transmission pipes that run to a major PG&E terminal in...