Spill containment system for container tanks

A spill containment system for container tanks comprising:

• two or more container tanks each comprised of a liquid container and a steel frame surrounding said liquid container, said steel frame including an upper rectangular frame member and a lower rectangular frame member, each of said frame members including four corners and having a corner casting at each of said eight corners;
• a plurality of containment pan assemblies including a liquid-tight pan having an interior capable of holding at least a portion of the contents of one of said liquid containers, said assembly having an upper rectangular section with four corners and a corner casting at each of said corners, said upper rectangular section having an outer perimeter size and shape that corresponds to the size and shape of the perimeter of said lower rectangular frame member of said steel frame of said container tank, whereby, said container pan assembly can support a container tank on said upper rectangular section with said corner castings of said lower frame member resting on said corner castings of said upper rectangular section,
• the height of said containment pan assembly being between eight inches and twenty-four inches;
• and
• a hose means interconnecting the interiors of the liquid-tight pans of said containment pan assemblies, thus creating the capacity required by regulations.