Remediation of contaminated land at Greenwich peninsula

The £21·5 million project to clean up the massive former gasworks site on the Greenwich peninsula was one of the most extensive and integrated ground contamination remediation exercises ever carried out in the UK. It included removing a 7 Ml litre tar well at the site of the Millennium Dome, washing 30 000 m3 of soil, treating 66 000 m3 of contaminated groundwater and effluent and recycling 245 000 m3 natural and engineering materials for backfill. This paper describes the various engineering and environmental techniques that were used in both the statutory clean-up operation and the subsequent remediation required for redevelopment