1. Registration & Refreshments

  2. Opening Remarks from the Chair

    Duncan Cartwright Duncan Cartwright
    Associate Director, Atkins
  3. Developing a Groundwater Watch List for Substances of Emerging Concern

    There is growing concern about the occurrence of a diverse array of anthropogenic organic contaminants in the aquatic environment. This concern extends to groundwater which is a critical drinking water resource. Current monitoring and regulation only covers a small fraction of anthropogenic substances that could pollute groundwater. Monitoring for unregulated substances is currently very limited or not carried out at all and as a result, the evidence base with which to inform policy development in this area is currently inadequate. Due to the high cost of monitoring, a coordinated European-wide approach is needed to identify priority substances, or groups of substances, that have the potential to pollute groundwater.

    This talk describes recent progress made by the European Working Group on Groundwater to establish the first voluntary groundwater watch list (GWWL) for substances of emerging concern. The process for developing the GWWL is one that has brought together researchers, regulators and industry and is briefly described. A summary of the key principles behind the GWWL methodology is presented as well as results from pilot studies using per- and polyfluoroalkyl substances and pharmaceuticals.

    Dan Lapworth Dan Lapworth
    Principal Hydrogeochemist, British Geological Survey
  4. Best Practice Techniques for Better Characterizing the Sub-Surface and Understanding the Fate & Transport of Contaminants in Groundwater

    • New techniques for characterising groundwater quality and pollutant fate in the sub-surface:
      • better understanding sub-surface contaminant distribution
      • assessing the impact of heterogeneity on groundwater flow
    • Advances in digitalisation of the collection, presentation and use of groundwater data – enabling real-time data in a usable format
    • Developing robust Conceptual Site Models which support and justify risk assessment decisions
    Ben Le Grice Ben Le Grice
    Senior Environmental Consultant, Arcadis
  5. Morning Refreshments & Networking

  6. Advanced DNAPL Source Zone Characterisation for Targeted Remediation: Is the Gain Worth the Pain?

    Examining what techniques are being used in practice for contaminant source and plume zone characterisation to inform remedial strategies. This presentation, illustrated with case studies, will draw on 20 years of research and practice to reveal recent advances in site characterization methods and present an evaluation of which methods provide the best return on investment.

    Dr Gary Wealthall Dr Gary Wealthall
    Managing Director, and Adjunct Professor (Toronto), Geosyntec Consultants Ltd
  7. Clarifying Natural Source Zone Depletion (NSZD) for Better Assessing Groundwater Contamination Risk

    This presentation will provide insight into effectively calculating the NSZD rate, understanding the natural process and the effect it has on groundwater plumes, as well as applying it in groundwater models.

    Presentation co-authored by Rob Sweeney, Project Director, CL:AIRE

    Dr Michael Rivett Dr Michael Rivett
    Director, GroundH2O plus Ltd & Dept of Civil & Environmental Engineering, University of Strathclyde
  8. Understanding & Managing NAPL for More Accurate Risk Assessment

    • Understanding how NAPL behaves as it moves from source to aquifer and the impact of source zone depletion
    • Best practice in understanding and modelling NAPL and plume migration over time
    Ben Fretwell Ben Fretwell
    Associate Director, Wood Environment & Infrastructure
  9. Q&A

  10. Lunch

  11. Selecting the Most Appropriate Laboratory Analysis for Different Contaminants to Achieve Optimum Cost-Efficiency

    This presentation will give an insight into current laboratory analysis capabilities and their suitability for different contaminants, particularly those with low EQS targets. By better understanding which analysis techniques achieve the best characterisation, you can select the most appropriate for your site and achieve optimum results within budgetary constraints.

    Hazel Davidson Hazel Davidson
    Technical Marketing Manager, Derwentside Environmental Testing Services (DETS)
  12. Case Study: Better Understanding & Conceptualising the Sub-Surface to Implement Effective & Justifiable Groundwater Remedial Solutions for NAPL

    • Determining what information you need, and what to do with it, to get suitable outputs for effective decision-making
    • Developing robust Conceptual Site Models which support and justify risk assessment decisions:
      • emphasising a lines of evidence approach to justify remediation decisions
    Dr Anna Hitchmough Dr Anna Hitchmough
    Associate Technical Director, RSK
  13. Case Study: Exploring the Benefits of Flux Measurement Technology to Assess the Speed & Direction of Contaminant Dispersion in Groundwater

    • Introducing the principle of flux measurements and their applicability to contaminated land and groundwater projects
    • Outlining the Regulatory view on this new groundwater monitoring technique
    • Project case studies
    Tim Op 't Eyndt Tim Op 't Eyndt
    Managing Director, iFLUX
  14. Q&A

  15. Afternoon Refreshments & Networking

  16. Assessing the Implications for Groundwater of Sources & Sinks of Nitrogen & Phosphorus Associated with Public Water Supply

    • Examining the extent to which mains water leakage is a significant source of phosphorus and nitrogen to groundwater and how this will change in the future
    • Can we trace nitrogen and phosphorus associated with mains water leakage?
    • Exploring if abstraction for public water supply is a significant nitrogen sink
    Matthew Ascott Matthew Ascott
    Hydrogeologist, British Geological Survey
  17. In-Situ Remediation of Contaminated Groundwater using Bio-Remediation

    • Determining when bio-remediation can be used effectively and the costs, benefits and practicalities of it as a remedial solution
    • Examining how it can be demonstrated to have a consistent approach appropriate for regulatory sign-off
    James Cartwright James Cartwright
    Technical Director, Geostream UK
  18. Q&A

  19. Closing Remarks from the Chair and Close of Conference