Description

This specification, and the appended notes for guidance, has been compiled to be used where slurry trench cut-off walls are required to act as barriers to pollution migration.

It provides a standard and consistent approach to the design, construction, testing and monitoring of cut-off walls, guidance on the appropriateness of this technique and current best practice.

Contents

• General requirements for slurry trench cut-off walls
• Wall requirements
• Materials
• Slurry production and quality control
• Slurry wall construction
• Compliance testing for material properties
• Records
• Post-construction monitoring
• Appendices
• Notes for guidance