The primary purpose of dynamic compaction is to improve the uniformity and density of the fill materials. Prior to the start of the dynamic compaction program, some preliminary site grading may be necessary to make the building pad areas level enough for the dynamic compaction crane to walk on.   The dynamic compaction program would consist of dropping a XX-ton weight from a height of XX feet at selected locations over the entire building footprint and within the first 20 feet of the adjacent truck loading docks.