Aboveground tanks can be monitored visually and are not subject to the corrosive soil environment. Therefore, they do not require elaborate leak detection and corrosion protection systems.
Instead of monitoring the presence of fuel in nearby soil, aboveground leak monitoring is based on the use of spill confinement pens, limiting of access, and regular inspections.
Confinement pens take two forms:
Enclosures consist of locked high fences and similar structures.
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