Shared secondary containment – Capacity - KBCN1885
For secondary containment storing two or more hazardous chemical containers/tanks, adequate containment is demonstrated where capacity is at least the greater of:
- 110% of the largest container/tank, or
- 25% of the total capacity of all containers/tanks.
For a single container/tank, containment must be at least 110% of that container/tank capacity.
Hydraulically linked tanks must be treated as a single tank.
Where local regulations or site-specific risk controls require a more stringent containment volume, these take precedence.
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