1. 1 Establishment of site security Chemical plant drain down & dismantling ->500 Tanks ->5000 Pipe Runs Demolition Site assessment and characterisation Construction of a water treatment system Creation of a18 ha nature reserve Ecological mitigation Treatment trials - Eurodemo Detailed design and regulatory approvals Full project review Works To Date

2. 2 Groundwater Flow

3. 3 Complex project nature required early contractor involvement to ensure the exact nature and cost of the works were understood Bespoke Early Contractor Involvement contract developed Bringing a Delivery Expert Into the Team Preferred contractor appointed May 2006 VSD Avenue – JV DEC Volker Stevin Sita Remediation

4. 4 Avenue remediation options derived by partnership working. Seven re-use criteria Technologies used focus on contamination removal Current remediation strategy submitted for planning in May 2007 Planning determined November 2007 Full project review 2008 Remediation technologies to be used –Selective excavation –Complex sorting –Soil washing –Bio-remediation –Thermal desorption Derivation of Remediation Options

5. 5 River Flood Relief Scheme Nature Reserve Residential Development Sports Pitches Option 3 - Full Site Clean-Up, Reclamation and Development Delivery Time Main works – 54 months Anticipated Completion Date – April 2014 Outcomes and Outputs - Environmental liabilities met - Landowner liabilities met - Future development area created - Sports/leisure facilities created - Nature reserve created - Landform fully improved - Full flood relief scheme created Cost - £172.3m Lowest Risk Option