1. The Cuban design has additional safety features including a secondary containment dome. 2. Double hulls in new vessels and secondary containment in oil holding facilities. 3. Secondary containment is formed by the auxiliary building, fuel building and reactor building.4. The EPA should require any new system that goes in to have secondary containment , 5. In August 2010 the regulator, ASN, reported further welding problems on the secondary containment steel liner. 6. The outer reactor building serves as secondary containment and houses many of the reactor's safety systems. 7. Generation of hydrogen during the process would probably result in an explosion, damaging the secondary containment building. 8. The Building Regulations bunded tank or secondary containment that is a minimum of 110 % of the tank s capacity. 9. Emergency Response / Spill Control [ 6 ] : Fire fighting Secondary Containment [ 7 ] : bunds, catchpots, barriers. 10. It is called a'secondary containment item'because it is designed to catch the leaks and spill of the container's contents which rest upon it.