WASTE SOIL CLASSIFICATION
Accurate testing and assessment of waste soils significantly reduces the risk of incorrect classification, which can lead to project delays and the incursion of excessive costs.
In our experience, there has been an over-reliance on the use of Waste Acceptance Criteria (WAC) testing when it comes to the disposal of waste soils generated by development. A commonly held misconception is that the result of a WAC test can be used to obtain an accurate waste classification.
In reality, the use of WAC alone often results in a misclassification and the unnecessary, expensive disposal of soils incorrectly labelled as hazardous waste.
In order to mitigate these risks and manage costs, CET offers a range of waste soil classification services:
- Site investigations specifically designed to ensure that samples representative of those requiring off site disposal are recovered for laboratory testing
- Liaison with analytical laboratory and management of chain of custody documentation
- Preparation of waste classification Hazard Assessment reports in accordance with Environment Agency guidance WM3 (v1.1) to determine if soils are likely to be deemed as either Hazardous, Non Hazardous or Inert waste by a receiving landfill site/waste management facility
- Establishment of appropriate European Waste Catalogue (EWC) codes for different waste types
- Supervision of excavations and on site delineation of contaminated soils
- Analysis of asphalt material to determine whether it contains coal tar and therefore represents hazardous waste
“The technical support, advice and training provided by CET enabled us to gain a far greater understanding of the waste soils generated by the development and our options for disposal and reuse”
REDEVELOPMENT OF HISTORICAL RAIL YARD AS RESIDENTIAL HOUSING – ASHFORD
CET assessments resulted in the reclassification of a number of stockpiles previously thought to represent hazardous waste; saving the client significant off-site disposal costs.
THAMESLINK RAIL DEPOT – HORNSEY
CET’s expert review of the results of a range of chemical analyses was used to develop an excavation strategy that minimised the volumes of hazardous waste leaving the site.
PREPURCHASE CONTAMINATED LAND INVESTIGATION – DOVER
CET conducted a due diligence contaminated land investigation of a study site prior to purchase. Desk research highlighted a significant risk of the site being impacted by a range of potential contaminants.
“CET’s knowledge of waste classification processes gave us the opportunity to reduce the volumes of soil material previously identified as hazardous waste. This enabled us to significantly reduce costs on this stage of construction”