The official cause of a Washington State ferry boat grounding near Bainbridge Island last month was revealed Wednesday. Washington State Ferries (WSF) found contaminated fuel led to generator failure on the Walla Walla, resulting in loss of propulsion and steering controls. The investigation into how the fuel was contaminated is ongoing. The Walla Walla has multiple engines, generators and fuel tanks but it was just one fuel tank that was contaminated. Both the main generator and the backup generator failed. There is a third way to restore power but it takes 90 seconds to kick on and at that point, the ferry was grounded. All fuel currently on board has tested clean, according to WSF. New generator monitoring gauges have been installed on the Walla Walla and Spokane. The Walla Walla was stranded along the Rich Passage near Bainbridge Island on April 15. The vessel, which was en route from Bremerton to Seattle, ran aground, meaning it was lying on or touching the ground under shallow water. Read the full story here: https://www.king5.com/article/news/local/cause-washington-state-ferry-grounding/281-33ad2e45-1e98-42f8-bd6d-1985028234da