Consumer goods still wait on the ground for more than a week at the ports of Los Angeles and Long Beach before trucks pick them up for shipment, according to a report issued on Jan. 27. Wait times remained at an all-time high in December, with cargo containers staying on average nearly eight days at a marine terminal after they are unloaded from ships at the twin ports, according to the Pacific Merchant Shipping Association. That was only about half a day shorter than the record wait times recorded in November. For cargo waiting to be shipped by rail, the average time containers waited during the holidays was nearly four days, which was the same as October, according to the shipping association. “While container dwell time did not worsen in the month of December, it was still high,” Jessica Alvarenga, manager of government affairs for the shipping association, said in …