23 March 2010
Environmental experts from WYG have created a sustainable remediation strategy for the redevelopment by Barratt Kent of a former gas works in Croydon, London.
Given the site’s history, the New South Quarter site has proved environmentally challenging. WYG provided advice on land decontamination and brownfield land regeneration, working with the Environment Agency and Croydon Council to address contamination risks to the River Wandle and other sensitive areas surrounding the site.
David Crichton-Miller, Managing Director for WYG Environment Planning Transport, said: “We work with clients to identify, define and deliver innovative solutions. Given the nature of this site, our team has created a sustainable strategy for this project and we are very satisfied with the outcome.”
WYG recommended remediation measures that included the construction of a ‘Permeable Reactive Barrier’ system to clean contaminated groundwater as it flows through the site. Soil materials from construction have also been treated on site to promote reuse and minimise the need for disposal to landfill.
As part of the regeneration, WYG worked with Barratt Kent to develop a wildlife enhancement strategy which integrates with a landscape management plan to create new habitats that enhance biodiversity within the site. The open river channel will be landscaped sensitively with native species to provide river habitats and offer greater connectivity for wildlife with the adjacent Wandle Park. Japanese Knotweed was also removed during construction to prevent the spread of this invasive species.
New South Quarter will achieve a 10 per cent reduction in carbon emissions using renewable energy technology. This has been achieved by a combination of an on site Community Heating System, partly-fuelled with locally sourced biomass woodchip, passive ventilation measures and high thermal mass construction.
Nick Fenton, Managing Director for Barratt Kent, said: “Barratt Homes is fully committed to building sustainable homes whilst preserving, protecting and enhancing the local habitat and making the most of its natural features. The restoration of the River Wandle and the decontamination works have been carried out in conjunction with the Environment Agency and their help has been invaluable.”