I specifically asked that and he would/could not say, only said...

I specifically asked that and he would/could not say, only said there had not been any problems with the de-watering plan to date ...,

Pumping out at 1500 litres per second commenced on 2 August 2018 so should be over 40% now if it was going ahead on schedule for i t to be completed by the end of December 2018 as announced. (nearly 5 months pumping)
Apparently mining can be resumed before the pumping out is fully completed.

Professor Paul Dougas (non exc. director) has just recently topped up his holdings on market to now total nearly 685,000 shares in MGX.
It is very comforting to know this of a design, process and project engineer with 40 years experience is prepared to invest after the seawall construction.

I imagine he would have been intermittently involved with it and obviously confident of it holding.

All my opinion only.

.......................
NT.