ReCLAIM is a tool developed by NNL through funding from the Nuclear Decommissioning Authority (the NDA) that can undertake simple generic and site specific assessments of radioactively contaminated land. It is designed principally for Nuclear Licensed Sites but can be applied more widely. The tool can:

  • calculate doses for predefined exposure pathways and scenarios
  • calculate soil/water decision support levels for individual radionuclides for a specified dose target and for defined scenarios and pathways
  • take into consideration radionuclide additivity and background radioactivity
  • be very flexible: users can modify pathway parameter values, develop custom pathways and scenarios or combine pathways to define site specific scenarios

Version 3.0.3 is free to use and can be downloaded by clicking on the link below.

NNL can provide training courses, application peer reviews and guidance on using the tool. 

Please contact us at to be kept informed of any updates and news about ReCLAIM.