Dredging got underway this month next to Pier 1 at Alameda Point.
The Navy is removing sediment that was contaminated from the disposal of industrial waste down storm drains. The storm drains empty out under the wharf that also serves as the roadway. Special equipment was designed to vacuum sediment from under the wharf. Traditional scooping is being done in the open water area.
The testing process to determine whether dredging was necessary began six years ago. The practice of disposing industrial waste down storm sewers was ended in the early 1970s with passage of the federal Clean Water Act.
Look for more details, pictures and video about the dredging process on the Alameda Point Environmental Report.