AD-plant containment bund lining

Containment lining lives on the details — corners, the transition up the bund wall, and each penetration. All were individually formed and sealed so the finished bund holds its rated volume with no weak points.

A tested, documented containment system that gives the operator — and the regulator — confidence that a spill stays where it can be dealt with.

The lined bund around the AD plant does two jobs. If the plant is ever breached, it holds the contents as secondary containment. Day to day, it keeps surface water out of the plant itself.

The bund was lined in 1.5mm HDPE, with every seam extrusion welded and tested. Much of the work was forming the liner around the plant's many existing penetrations.

There was no formal lining specification for the bund, and the liner was held down with interlocking precast concrete blocks made on site. Neither is how we usually work, so the details were agreed with the site team as the job went.