Our recent DoW CoP audits revealed that some project teams did not use the correct assessment process to ensure suitability of materials from the source/donor site (under the Direct Transfer setting). CL:AIRE wants to remind QPs that relevant sample testing exercises must be considered for each source/donor site.
Similar to hub and cluster, relevant sample testing exercises must be considered for each receiving site, even it has been proven to be a greenfield site according to the Desk Top study. This will help to ensure that identified levels at the donor site are below that of the receiver site. For further clarification, please refer to the DoW CoP FAQs - Watch Point 15 (Materials use at Receiver sites): When does it apply, and how should it be considered?
The level of sampling and testing required will, to some extent, be site specific, based on the consistency of materials and ground conditions. However, adequate numbers of samples must be taken to ensure compliance with the scenario, ensuring that the material is “suitable for use” without adding any additional contamination burden to the receiving sites.
Please ensure site reports have adequate sampling for donor sites, to enable assessment against the above testing process and that assessment at receiver sites is against baseline data from sampling there, not just assessments against proposed land use Generic Acceptance Criteria.