Techniques :
Blasting sand cannot be treated in the Balkans and are not suitable to be re-used into thin horizon between surface and ground water (2m maximum)
Evacuation must be done by ship as the site is a port.
No on site treatment is possible in the short time available.
As the ground is really permeable:
- Soil flushing by pumping water in downstream trench and re injecting in upstream trench,
- skim the floating HC in the downstream trench,
- excavate clean soil between surface and floating HC horizon and store on site,
- Excavate and dewater contaminated soil,
- Evacuate by ship,
- Pump and treat groundwater and backfill ground