Which of the following tanks is least likely to be used in a sensitive environmental area?

Laminated tanks are least likely to be used in sensitive environmental areas primarily due to their structural characteristics and the materials commonly involved in their construction. Laminated tanks, which are typically made by bonding layers of materials together, may not offer the same level of secondary containment and corrosion resistance that is crucial in protecting the environment from potential leaks or spills in areas vulnerable to contamination.

In contrast, double-walled tanks provide an additional layer of protection because they consist of an inner and outer wall, significantly reducing the risk of leaks. Membrane lined tanks also have protective liners that can help contain spills, while vaulted tanks are enclosed structures that provide robust containment capabilities. These designs are specifically effective in mitigating environmental impacts, making them more suitable for deployment in sensitive areas where any leakage could lead to serious contamination issues.

Thus, laminated tanks do not provide the same level of safety and environmental protection as the other options listed, making them the least likely choice for use in sensitive environmental settings.