A suitable site should be selected in the same manner as an open stockpile. While compaction of the litter is not necessary, it does allow more litter to be stored in a smaller area and it reduces the potential of wind-blown litter. For the cover, use plastic sheeting that is at least six millimeters thick and replace the sheeting after one or two seasons or when needed. To ensure the cover will remain in place, anchoring the edges is important. This can be done by laying the plastic across a small trench and backfilling with soil or by covering the edges with a ridge of soil or gravel on flat ground.
Old tires placed on the surface reduce billowing and flapping due to wind.
Litter may be stored in bunkers similar to silage bunkers. Sometimes these structures are partially or fully built into the ground with vehicle access into the structure for convenient loading and unloading. Litter compaction will allow more storage in a smaller space. As with stockpiles, bunker storages should be covered if at all possible. With no cover, polluted runoff and leachate can result in a pollution problem.