You need the 6m3 mixed soil container when you are going to build a garden, have soil left over after a renovation or dig in a trampoline. A mixed soil container can contain more than just earth, clay and sand. Small debris such as stones, grit and gravel can also be disposed of in it. Before placement, a National Register is used to see if the soil in the zip code area is classified as "clean." If this is not the case, the soil may not be collected. You will always receive confirmation of this before placement.