Making a site safe meets not only environmental objectives, through the preservation of common resources (groundwater, soil, biodiversity, etc.), but also health objectives to protect site users.
COLAS Environnement implements a wide range of actions to make sites safe. They may consist of:
- Managing/identifying and screening hazardous waste into approved channels;
- Cutting off transfer routes into the groundwater, soil and air;
- Eliminating concentrated sources of pollution;
- Protecting a drinking water supply;
- Reaching the thresholds set by the Residual Risk Analysis.
Interventions designed on a case-by-case basis thanks to mastered methods and technologies: in-situ treatments, under-slab depressurization, hydraulic pumping barrier, reactive permeable barrier, diaphragm wall and hazardous waste management.
A constantly evolving work methodology based on the know-how and experience built up by Colas Environnement over the past forty years.