Why not crush or chip on farm?

Crushing spray cans on farm, as requested by some waste companies to reduce volume, raises some issues regarding spillage and ground contamination. Almost all cans after rinsing have liquid left in the container. Some spray formulations leave a stain on the outside of the can and small amounts will leave the floor stained. Any such actions should be carried out in a bunded area, to minimise the risk of contamination. The same applies to on farm chipping but also the chipped plastic cannot be recycled as the risk of contamination prior to processing is too great. On farm operations we believe are both environmentally and operationally hazardous.