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GO Contaminated Land Solutions

GO Contaminated Land Solutions. GO. Remediation for commercial and residential use. Case study: Freeport designer outlet, Alcochete. The UK regulatory framework is based upon:. Risk assessment. and Suitability for use. commercial. parkland. residential.

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GO Contaminated Land Solutions

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  1. GO Contaminated Land Solutions GO Remediation for commercial and residential use. Case study: Freeport designer outlet, Alcochete.

  2. The UK regulatory framework is based upon: Risk assessment and Suitability for use commercial parkland residential It can therefore be adapted and applied to other settings

  3. A site walk over was undertaken; including a climb to the top of the water tower The first step was to visit the site of the former tyre factory

  4. A Desk Top Study was undertaken Orange grove Factory Scrub Past land usage, geology and hydrogeology were investigated

  5. Design of site investigation and testing regime Considerations for testing regime • Likely contaminants identified in DTS • Hydrocarbons • Asbestos • Heavy metals • PCB’s • Relevant Environmental Quality Standards • Portuguese & UK • - How many samples on what pattern?

  6. Consideration of site specific items Culvert (pathway) Tejo estuary environmental zone (receptor) Freeport designer outlet underground tanks (source) Wells (pathway)

  7. Pollution linkage example SOURCE PATHWAY RECEPTOR Transformer Asbestos sheets Leaking tanks Fly tipping Alluvial deposits Human & fauna by: Ingestion, Inhalation, Skin absorption River Tejo Flora - by root take up Property Groundwater Soil Air Culvert

  8. Potential groundwater pollution linkage source contaminated soil leaching unsaturated zone ground water flow saturated zone (aquifer) Tejo estuary potential receptor

  9. Computer modelling is undertaken by specialists if required

  10. Assessment of site investigation results The results for each contaminant are analysed statistically to obtain: - A picture of the whole site - 95% certainty of compliance

  11. The Remediation Strategy addressed • Contaminants identified • Remediation proposals • Areas requiring further investigation • Protection of receptors during construction • Monitoring of groundwater • Validation testing • Records to be kept

  12. Frequent monitoring visits were made as demolition and site clearance progressed

  13. The soil contaminated with hydrocarbons was placed in windrows on polythene sheeting Leakage had occurred from some underground tanks

  14. Validation sampling after removal of extent of assumed contamination

  15. The Validation Report was completed Including the post remediation testing And documentation to demonstrate appropriate disposal of potentially hazardous materials

  16. Demonstrating the site’s suitability as a 75,000m2 retail and leisure development

  17. GO Contaminated Land Solutions We have: GO • - Considerable breadth of experience • - Some 15 years of working on projects involving contaminated land We provide: • - A client focused environmental consultancy • - A project specific cost effective service

  18. Experience includes the following: - Gas works - Petrol filling stations - Sewage works - Scrap yards - Hospitals - Industrial sites - Water treatment works - Potential unexploded ordnance

  19. Services include: -Desk top studies -Ecological surveys -Remediation strategies -Environmental impact assessments This old water works required surveys of flora and fauna as well as a contaminated land remediation strategy.

  20. And a variety of end uses: - Retail - Industrial - Leisure - Residential, both with and without private gardens GOContaminated Land Solutions GO

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