Demolition of remaining structures. Break out existing hard surfacing, foundations and obstructions including reinforced concrete slabs, tanks, piles, basements and asphalt and process for re-use in the pile mats for the site development. Remediation of former landfill materials as encountered to allow re-use of materials wherever possible. Treatment of contaminated groundwater during site clearance works and during groundworks to allow discharge to foul sewer under license. Backfilling around large underground attenuation tanks and construction of stabilized access routes into the site for follow on construction works.