The Coast Guard’s unified command said it couldn’t comment on continuing investigations. “The investigating agency is analyzing electric charting systems from its vessel traffic service to see what ships were anchored or moving over the spill area,” it said. The Rotterdam Express container ship, which has a capacity of about 4,900 boxes, dropped its anchor Sept. 21 as it was asked, according to a spokesman for the German shipping company Hapag-Lloyd AG . The ship didn’t move from where it was anchored or pass over the pipeline during the period in question, the spokesman said. It was anchored off Long Beach until going to a berth Oct. 3. The ship left Southern California two days later and arrived in Oakland Oct. 6. Crews raced to clean up an estimated 126,000 gallons of crude that leaked from an oil-processing platform off the coast of Southern California. The spill, which has […]