Your article on June 2, 2013, is inaccurate (along with the Web information). The waste storage tanks at the Hanford Nuclear Reservation were not made of stainless steel. They were made of ordinary low-carbon steel. The single shell tanks were not annealed, the double shell tanks were annealed to prevent corrosion.
Not that it makes any difference, both sorts of tanks would have eventually breached. I worked on the Hanford cleanup for several years for the Washington Department of Ecology. The central problem is that the Department of Energy talked the problem to death during negotiations.