This is the southern part of Africa Sir.
Strange that you should mention jet fuel, as I also asked about it.
Firstly, the laws governing light planes here are very strict and every plane is inspected before it departs. Jet fuel is also very expensive here and no pilot can afford to lose even one drop.

But there is always a "just in case" of a leak and that's why the section in line with the runway is sealed off by the tunnels.
So no, the strawberries are only fed with pure potable water as you saw the tractor doing there.
Blessings!