The September 27 1999 issue of the Seattle PI carries an article entitled Nuclear 'blob' grows at Hanford. This blob is the unexpected side effect of a pump process engineered to dissipate pockets of hydrogen gas in the million gallon tank of nuclear waste called SY-101. The pockets of hydrogen gas would periodically release, posing the potential for an explosion, and causing chunks of waste on the tank surface to "roll over". " ' I don't make any claims about this tank,' said Donald Oakley, a retired environmental expert from Los Almos National Laboratory, hired by the Energy Department as an outside consultant. 'I'm not convinced anyone understands the chemistry and physics involved in this crust.'. 'The rollovers were spectacular, but now we've got another problem, caused by the solution to that problem', said Stephen Agnew, a chemist who worked at Hanford for years". "Another expert, Robert Alvarez, a former senior advisor to the energy secretary on environment, safety, and health, said of the managers at Hanford: 'They were lulled into complacency and forgot the fact the pump was only meant to be a temporary measure to mitigate the problem. They completely ignored the fundamental problem of dispositioning these materials.'