The former industrial harbour in Offenbach am Main is seeing a revival as a new city quarter. For more than half a century, this area of around 320,000 m² had been used for warehousing and transshipment of petroleum products, scrap metals and goods such as sand, gravel and coal. We have been supporting our customers in a €800 million project to redevelop the harbour area into a quality environment for living and working on the River Main since 2001.
A major challenge was ensuring that all regulatory requirements were met to satisfy local authorities of the effectiveness of the remediation efforts and facilitate successful marketing of the redeveloped site. To aid in meeting this challenge and in close cooperation with our client and the local authorities, we created a model that allowed for the necessary remediation measures while maximising the freedom to develop the site. This model also incorporated existing remediation measures.
We developed a concept ensuring maximum freedom in redeveloping the site while keeping remediation effort to a minimum in close collaboration with the project company and competent authority.
We developed a geographic information system (GIS) for the area to facilitate data management and generate a uniform and comprehensive area map. This involved compiling 20,000 records from various plots of land. Accurate recordings of hydrogeological parameters and contamination inventory went into tightly specified safety concepts for highly contaminated areas in the aquifer. The project includes removing remaining soil contamination at further building development stages as well as draining the excavation pits to achieve further contaminant reductions.