No idea where the figure of fourty flights came from, but agree that it would include arrivals and departures, though how the current level of GA movements has an impact on 40 air transport movements a day I don't know. Presumably that would be any training flights out the window as well?
And as for the comment about crashes, well...
The airport has offered to cover the cost of relocation elsewhere on the airport site, which wont be cheap with the underlying works on the pan that stop/mitigate ground contamination from unburnt fuels and foams
Given the comments on contamination and burns, where else on the airport would be a suitable location?
Will be interesting to see what airside access there is to the southside.