Intent 1:
To supersede the requirements of Sentence 4.8.3.1.(1) and permit storage tanks to be buried in piers
and wharves, if certain conditions are met [the piers or wharves are
of solid-fill and the tank installation conforms to Subsections 4.3.8. to 4.3.12.
This is to limit the probability
that:
- the substructure or deck will fail under normal or fire
conditions, which could lead to failure of the storage tank or associated
piping, which could lead to the escape of liquid, which could lead
to the ignition of vapour from a nearby ignition source, which could
lead to harm to persons, and
- there will be an unwanted release of liquid and vapours
from the storage tanks, which could lead to the ignition of the vapour
from a nearby ignition source, which could lead to harm to persons.