The Yaramoko site in Burkina Faso's arid savanna belt required a distinct approach regarding the containment design of the waste storage facility. Since the distinct dry and rainy seasons throughout the year highlight the thermal expansion/contraction behavior of the HDPE geomembrane, the panel deployment pattern was established by taking into account diurnal temperature variations and thermal stress zones.

After subgrade preparation was completed, membrane installation was carried out using a top-down deployment methodology starting from the slope crest; this prevented surface runoff from seeping beneath the panels during rain events. All long seams were joined using the double-wedge thermal fusion technique, while T-intersections and repair areas were joined via the extrusion method. Spark and air pressure tests performed on the weld bead were documented under the supervision of the client representative and independent QA engineer.

Since site logistics were conducted via road rather than rail, equipment mobilization and spare parts inventory were planned specifically for the project. Because dust control was a critical QA phase for pre-weld panel cleaning, the crew operated with shift adjustments dependent on wind conditions, and QC records were transferred to a digital environment daily.