What is the maximum amount of explosives that can be stored underground in magazines?

The maximum amount of explosives that can be stored underground in magazines is defined by safety regulations, which take into account various factors including the potential for accidents and the need for emergency response. In this context, a 48-hour supply is permissible as it allows for sufficient time to manage and use the explosives while mitigating safety risks. This duration balances operational needs with the importance of ensuring a secure environment for both personnel and surrounding areas.

Storing a one-week or two-week supply would exceed safety protocols, increasing the risks associated with large quantities of explosives in a confined underground space. A 24-hour supply, while safer than longer durations, may not adequately support operational demands for larger projects. Hence, a 48-hour supply strikes a prudent balance between operational efficiency and adherence to safety standards, making it the correct choice.