In the Western Heights ditch where the Avo roundabout now is, we a some large tanks still full of a diesel/kerosene mix uncovered when the A20 was built through there !!
Pipes led from town across Shakespeare Beach and into the sea for setting the sea on fire and I think sections of it could still be found
http://jeffhowe.tripod.com/Barrier_Ditch.htm
We will cover a bit about this on a guided walk down there on 26th September....
There is a book I must get sometime about the petroleum warfar - Flame over Britain by Sir Donald Banks