Maximum-security containment is possible for soil with a level of contamination below regulatory standards. The strict conditions for the design and use of these containment cells are established by the RESC. To summarize, a thick, impermeable clay deposit is required. Cells are dug into this layer. The bottom and walls are then covered with an additional waterproof system consisting of two high-density polyethylene (HDPE) membranes. A leak detection system is provided to detect potential leaks and water is pumped and sent to the water treatment plant.
We cannot accept for direct containment soils containing:
- concentrations of contaminants exceeding the standards of Annex 1 of the Regulation respecting the burial of contaminated soils (RESC) (view the regulation at the Government of Quebec website)
- free liquids
- reactive substances or explosives that could damage the geomembranes of the cells
Horizon Environnement can provide treatment for these cases.