It seems this particular failure mode wasn't even considered - most large "chemical" tanks are required to have spill walls (basically a berm around the tank th

It seems this particular failure mode wasn't even considered - most large "chemical" tanks are required to have spill walls (basically a berm around the tank that could contain the contents of the tank) - sample model: https://www.walthers.com/wide-oil-storage-tank-w-berm-kit-tank-7-1-2-diameter-x-4-tall-19-1-x-10-2cm https://www.walthers.com/wide-oil-storage-tank-w-berm-kit-ta...