August 18, 2009 10:04 am Crews Pulling Leaky Tug From SF Bay Crews are working to pull a sunken tug boat from the waters off Treasure Island in the San Francisco Bay, where it has already left its mark on the environment. US & World Videos 2:14 Preventing wildfires event held in the North Bay 0:58 Berkeley Humane hosts ‘Bark and Meow Around the Block' 2:08 Dublin soccer team collects shoes for nonprofit 3:10 New San Francisco fire chief makes history 6:03 49ers looking towards the future, season opener