1.1.This document provides guidance on the procedure for risk assessment at all landfill sites in relation to the geological barrier, mineral layer and leachate sealing and drainage system requirements of the Landfill Directive. The procedures described may be applied to both existing and new landfill sites.

1.4.This guidance provides a framework for undertaking landfill risk assessments in relation to the Landfill Directive and does not cover the details of risk assessment techniques. It is recommended that for further details on risk assessment the following are also referred to:

• Directive 80/68/EEC (The Groundwater Directive).
  
• The Groundwater Regulations 1998
  
• Directive 2000/60/EC (The Water Framework Directive)
  
• IPPC Sector Guidance for Landfill Sites
  
• The Pollution Prevention and Control (Scotland) Regulations 2000 - A Practical Guide. Issue 2