What factors should be considered in determining the size, shape, and depth of a tank excavation?

Determining the size, shape, and depth of a tank excavation involves several critical factors, all of which contribute to the safe and functional installation of an underground storage tank (UST).

Considering the manufacturer's recommendations is vital because each tank is designed with specific installation parameters that ensure its structural integrity and performance. These recommendations often include details about the required excavation size to support the tank appropriately.

Soil stability and compaction requirements must also be evaluated, as the soil's ability to support the tank without shifting or settling is crucial for safety. Unstable or improperly compacted soil can lead to tank deformation or failure, which poses significant environmental and safety risks.

Moreover, depth of cover requirements play an essential role in the excavation process. Regulations typically specify how much soil cover is required above a UST to protect it from physical damage or environmental hazards. Adequate cover minimizes risks associated with surface activities, such as construction or landscaping.

Thus, considering all of these factors together ensures that the excavation meets safety standards, environmental compliance, and the technical specifications needed for effective tank operation.