Project

Remediation of the London Olympics 2012 Games site

Location : London, United Kingdom
Client : ODA (Olympic Delivery Authority) & LDA (London development Agency)
Contractor : DEC nv (DEME Environmental Contractor)
Period : June 2007 – June 2010
Value : £ 20 million

Activities

Soil Washing
Bioremediation
Soil Stabilisation/ISolidification

General Information

Description of the works

The site for the 2012 Games is located in the East End of London in an area which had been subject to industrial activity for centuries. This industrial activity caused widespread contamination of soil and groundwater in the area. The regeneration of this disused industrial site and the Lasting Legacy that would be provided following the Olympics was one of the key factors in London being chosen as the host city for the Games.

In July 2006 DEC was appointed to the Framework Contract for Demolition and Remediation Works for the London 2012 Olympic and Paralympic Games. Under this Framework Contract, DEC was selected for:

• Soil Washing
• Bioremediation
• Soil Stabilisation/Immobilisation
• Thermal Desorption
• Dredging and Sediment Treatment

Following the appointment to the Framework Contract DEC has won contracts for Soil Washing on the site of the Aquatics Centre and Site Wide Remediation works in the southern area of the Olympic Park which includes the main Olympic Stadium.

Soil Washing works commenced on the Aquatics Centre site in June 2007 where DEC deployed one of its in-house developed soil washing plants and is expected to treat in the region of 50,000 tonnes of soil. The principle contaminants encountered included hydrocarbons and heavy metals.

In November 2007 work on the Southern Site Wide Remediation commenced with the construction of a Soil Treatment Centre. DEC is providing all of the remediation technology to this treatment centre and this includes Soil Washing, Bioremediation and Stabilisation/Immobilisation. The Soil Treatment Centre will be required to treat in excess of 500,000 tonnes of contaminated soil before the end of 2008. The site will then be handed back to the client for the construction of the Olympic Stadium and other facilities.

Remediation works on the Olympic Park Site will minimize the amount of material being disposed off site and maximize the reuse of materials on site. All treated material will be reused in the preparation of the development platform for the Olympic Park.

Main Equipment