The permit issued by The Environmental Agency will specify the type of material that can be used. Once the specification is clear, we will then find donor sites that match that specification. Donor sites tend to be operated by large plc companies who are obliged to have extensive testing carried out to confirm the type of material they would like to remove from this site. It is only when the material on this site (the donor site) matches up with what is permissible by The Environment Agency, can we then bring it to your site to create the remodelling.