Methods for protecting a ground surface from exposure to material that may be spilled from or leak from one or more containers

A method for protecting a ground surface from exposure to material that may be spilled from or leak from one or more containers, the method comprising:

• arranging, on the ground surface, a flexible bag having a bag bottom and a bag sidewall that cooperate to define an interior;
• disposing a plurality of pedestals within the interior of the bag, each of said plurality of pedestals including a top wall with a primarily planar face, and at least one primary projection and at least one secondary projection, both of which project upwardly from the primarily planar face;
• placing at least one perforated grate on the plurality of pedestals disposed within the interior of the bag such that the at least one perforated grate rests in contact with the primarily planar face of the plurality of pedestals between the at least one primary projection and the at least one secondary projection and the at least one perforated grate is supported above the bag bottom by the plurality of pedestals;
• and
• placing the one or more containers of material onto the at least one perforated grate supported above the bag bottom by the plurality of pedestals disposed in the interior of the flexible bag.