Contractors with the U.S. Environmental Protection Agency raised a sunken tugboat known as a Captain Al from the floor of the Oakland Estuary Nov. 4. The job is part of a two-month long project by the EPA and CalRecycle to remove dozens of abandoned and sunken marine vessels along with marine debris, toxic materials and other navigational hazards from the estuary. The EPA and CalRecyle, in cooperation with other local, state and federal agencies, including the U.S. Army Corps of Engineers, will spend more than $3.5 million on clean-up efforts.