Final answer:
The setting and back fill requirements for an underground container involve ensuring stability and protection, such as setting the container on a stable and level foundation and using proper back fill material.
Step-by-step explanation:
When it comes to setting and back fill requirements for an underground container, the primary concerns are the stability and protection of the container. The container should be set on a stable and level foundation to ensure its structural integrity. The back fill material should be carefully selected to provide proper support and prevent damage to the container.
For example, in the case of an underground storage tank, the tank should be set on a concrete pad that is thick enough to handle the weight of the tank and the contents it will hold. The back fill material should then be compacted in layers around the tank to provide support and prevent shifting or settling.