Soil and groundwater pollution:
megasite approach of the
Rotterdam Harbour area

remediation Receptor Anthropogenic layer Holocene 1st aquifer 2nd aquifer Clay layer Clay layer Jointapproach * supported by a groundwater model Rotterdam 6 5 4 2 1 Advantage PoC 1 Pollution RotterdamHarbour area PoC 2 PoC 3 Legend Priority Low High Processes in the subsurface 3 From the perspective of the receptor Which pollution sources form an actual threatto the receptor? 1 retardation Processes inthe subsurface biodegradation density drivenflow due todifferences insalinity 3 Natural resilience ofthe subsurface Taking into accountthe natural resilience of the subsurfaceand groundwater.Reducing remediation costsSustainable sollution Prioritize Prioritize whichcontaminations willpose a problem. 2 Monitoring Monitoring takes placeon locations where arisk is expected.Reducing monitoring costs. 4 6 Spacial developments,water management and the use of the subsurface go hand in hand with reducing the risks of pollution. Hand in hand Jointapproach Supported by a regional groundwater model.Management strategiesare better aligned. 5 Monitoring