Petrol Storage

[iaaems]

Another point:-
"While diesel is not a particularly dangerous substance from a health and safety point of view, it is an environmental hazard, with considerable clean-up costs if it should leak into a drain, watercourse or the soil".

As the world is now, today, you might think that your household insurance - if you have any - will cover you for what is known as leakage/spillage. If you have oil fired central heating and you have a 1000Lt tank on the premesis - when was it last checked out?
The chances are that your insurers will balk at covering you for this unless they have been specifically asked to cover it. If diesel gets into the water course and it is traced back to your premesis the water company and all the other powers that be and beasts of prey will be down on you like a ton of bricks and you will probably have to reimburse them for their trouble, which will be considerable. If I remember correctly the oil companies self insure for this event. They can afford it - can you?
In an after event scenario, if you are found to be polluting the water supply the outcome just might be worse.
I appreciate that I may have oversimplified things a bit here, possibly, but my main concern is individual safety of storage and good housekeeping and the maintenance of a good clean water supply for everyone else.