Important to note the distinction between "geological results"...

Important to note the distinction between "geological results" (i.e. what minerals the geologist and drill crew can see on the drill rig either in RC chips or in drill core) VS "assay results" i.e. (what the actual results are from the assay lab once finalized usually weeks later after drilling).

If someone has seen a huge bunch of pyrite in a drill hole and thought that it immediately equates to Co% grades then some people could be in for some disappointment as there are many pyritic intervals around Broken Hill that can appear quite spectacular but don't have the necessary Co content in the pyrite to make it economic.

These guys seem to have had a problem with leaks in the past, and the ridiculous volume would suggest some sort of leak. Someone got a bit excited down at the pub somewhere maybe?