the extra information required

Just saw what extra information was required. I would have thought the questions raised were fairly standard stuff.
Firstly why the hell didn't they ask these before. It looks like clear:
1 Incompetence
2 Direlection of duty
3 lack of attention/lasiness/ inability to understand infromation presented /

Most appeared to be covered in slide presentatiosn earlier.
As to the venturing awnsers What if these a deluge? Well the standard design characteistics and tailings dams etc apply. Plus bunded/runoff areas.

Same with depth of burial of tailing. Well the radioactive bits the U is being taken out!

The minister should be called out on Christmas day to go over stuff he should have already paid attention to. However he wouldn't undertand and would need it repeated so better not waste everyone time. IT's just like the Collins Class subs (ships they hardly submerge).