Alameda Point 2012 environmental cleanup review, and busy year ahead

Cleanup activity at Alameda Point in 2012 started where it left off in 2011 — at the Seaplane Lagoon.  The northwest corner of the lagoon was the site of the second and final phase of lagoon dredging, which targeted sediment that had been contaminated near storm drain outfalls.  With dredging completed by spring, the sight […]

Seaplane Lagoon cleanup dredging completed [video and slideshow]

Environmental cleanup of the Seaplane Lagoon has centered on two areas where storm sewers drain into the lagoon.  It was commonplace to discharge all sorts of chemicals down storm sewer lines prior to the passage of the federal Clean Water Act in the early 1970s.  Contaminants such as PCBs, cadmium, lead, pesticides, and radium have […]

March cleanup meeting announced

Restoration Advisory Board Naval Air Station, Alameda (Alameda Point) March 8, 2012       6:30 PM Location: Alameda Point – 950 West Mall Square (Alameda City Hall West) Room 140 – Community Conference Room Enter from West Midway Avenue at rear of building.   Agenda                     […]

Precision Dredging at the Pier Area – with video

Designing the workplan for dredging toxic sediment next to Pier 1 at Alameda Point required precision so as not to undermine the stability of the concrete posts supporting the roadway that passes along the pier area.  The ground under the water slopes down nearly 40 feet from the cement parking slab adjacent to Wharf Road.  […]

Where Alameda Point’s cleanup is at year’s end

  The past year had some high points and low points in the cleanup process at Alameda Point.  Added delays, including a pile-driving surprise, were balanced out by steady progress. The year saw, among other things, completion of a second Point-wide radiological survey of buildings and structures that identified two building interiors needing radium remediation, […]

Radium Scanning Process at Seaplane Lagoon

Every scoop of dirt that was dredged from the Seaplane Lagoon earlier this year is first sorted into premeasured compartments.  The piles are then tested for heavy metals, PCBs, and pesticides.  But the piles cannot be tested for radium 226. In order to test for radium, every pile has to be scooped back into a […]