The NYT is pretty big on the "may be" toxic content of the fly ash .. but not real big on kicking a***, when it comes to the engineering failure here.
These power station engineers and managers are paid big $$$ to ensure, that what they do, engineering and safety-wise, is fundamentally sound.
Looks like someone needs to go back to school to get a better grasp on subjects such as .. soil stability .. engineering dam walls for strength .. etc etc ad infinitum.
The lawyers will have a field day with this kind of incompetence, and we all pay for it ..