The Waste Soils Characterisation Assessment Tool, CAT-WASTESOIL, has been created by Atkins to provide a quick and easy to use web based facility for the assessment of contaminated soils, and their classification as either hazardous or non-hazardous waste. The categorisation of waste soils can be a time consuming and difficult procedure, often requiring intimate knowledge of the behaviour of individual chemical compounds. The tool follows current guidance and provides a range of clients with the ability to rapidly characterise waste soil, and therefore choose the right treatment or disposal option.

NEW - A new input sheet is now available to download and must be used in order for you to assess your data.
To ensure you are using the correct version of the Input Sheet click here to download version 8.

Atkins are currently updating CAT-WASTESOIL in relation to new Environment Agency Guidance. We are also updating the look, feel and functionality of the website, which will be launched in June 2015.

Update, April 2014 - CAT-WASTESOIL has been updated in light of the changes to Environment Agency Hazardous Waste Guidance (WM2) Third edition, May 2013.

Most notably, the changes that have been made include the introduction of an 'unknown hydrocarbon / oil' category which has replaced 'unknown lubricating / other oil', this is reflected in the new Input Sheet (row 97). This classification assists in determining whether wastes contaminated with oil are hazardous. Scenarios assessed include:
  • Known oil
  • Unknown oil when the petroleum group is known, in which case the group classification can be used
  • Unknown oil where the petroleum group is also unknown. Appropriate markers are utilised in this case, namely benzo(a)pyrene (concentration less than 0.01 % of the TPH concentration) as per table 3.2 of the CLP Regulations

Other changes and updates relate to:
  • Harmful/Toxic classification (H5/H6): the amendment of thresholds for compounds (including cumulative compounds)
  • Ecotoxic classification (H14): the amendment of substance specific thresholds and risk phrase cut-off values, as per the limiting concentrations set out by the DPD and in Annez VI, Table 3.2 to the CLP

It is recommended that users should familiarise themselves with the Environment Agency guidance document, as referenced above.

To ensure you are using the correct version of the Input Sheet click here to download version 8.
Terms and Conditions
Please download and read our terms and conditions by clicking here.

The terms and conditions are in Adobe Acrobat PDF format.
If you do not have Acrobat you can download it from here.


Created 21/09/07 | Updated:21/09/07 Copyright © 2007 Atkins Ltd, All Rights Reserved.