Remediation of soil contamination in Øresundspark, Copenhagen

22 hectares recreational area Øresundsparken in Copenhagen.

The 22 hectares recreational area Øresundsparken in Copenhagen consists of a number of heavily contaminated former industrial sites, which have been covered with 200,000 m3 of clean soil and converted into a park area.

From the end of the 19th century and up to 1990, the area hosted a wide range of potentially polluting activities, such as chemical industries, storage of chemicals, landfilling, burial of bog iron, etc.

Prior to the conversion to park area, Sweco carried out extensive contamination investigations, describing the various types of contamination and visualizing them in a 3D-model which was used to assess risks and design remediation measures.

Sweco’s specialists designed and conducted a monitoring programme to prevent underlying contaminants from posing a risk to the environment and users of the park.

15 monitoring boreholes were drilled on the site, sounded (pejlet) and used for water sampling. A pore air control programme is conducted to ensure that the soil cover is sufficient to protect the area from the underlying contaminants.

Drainage water from the locality is collected in wells, which are sampled for water according to an agreed analysis programme before it is discharged to the sewage system.

Sweco’s team prepares a report each year evaluating the composition of the monitoring programme. It is expected that the amount of monitoring activities can be reduced over a number of years.


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