Secondary Confinment

SECONDARY CONTAINMENT/CONFINEMENT: barriers built around storage facilities and handling areas to contain products that have escaped due to leaks, spills, fire, impacts, vandalism, etc. The barrier holds the leak between the tank and the barrier long enough for the leak to be detected. The barrier is shaped so that a leak will be directed towards a leak monitor. For aboveground tanks: typically a sealed pad and dike in which the storage tanks are placed.

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