Conceptual framework
- Urban area with a contamination hotspot from former petroleum facilities
- Former 15 m³ diesel tank used for boilers
- Currently a children’s playground and surface parking lot
- Adjacent underground parking with hydrocarbon seepage
- Excavated soil: 158.4 m² → contaminated soil: 15 m³
- Separation of contaminated and non-contaminated materials. Non-contaminated materials are reused on-site for excavation backfill. Contaminated materials are properly managed.
Actions Taken
- Preliminary and detailed site investigation
- Waste characterization
- Removal of former petroleum installations
- Selective excavation and management of contaminated soil
- Environmental Site Supervision (DAO)
- Restoration of the urban environment
- Quantitative Residual Risk Assessment (QRRA)
