Updated, Practical Solutions to Achieve Risk-Based, Cost-Effective

21-22 October



Wednesday 21 October

13.45 Networking Session using our Virtual Face-to-Face Networking Platform

Exclusive to attendees, Environment Analyst Corporate and Strategic members and Network Pass holders.

14.30 Welcome from Environment Analyst

14.35 Opening remarks from the Session Chair: Updated, Practical Solutions to Achieve Risk-Based, Cost-Effective Remediation

Our Chair will set the scene for the conference by reflecting on the need to balance the need for innovation, pragmatism and cost effectiveness while still ensuring remediation is effective, environmentally benign and socially acceptable.

Dr Paul Nathanail, Technical Director - Contaminated Land, GHD




14.50 Developing Conceptual System Models for Resilient Brownfield Redevelopment

  • Integrating redevelopment with long-term management of land contamination

  • Exploring how the resiliency of infrastructure impacts brownfield reuse

  • Accounting for stability of utilities (electricity, water, waste, gas, communications) in brownfield redevelopments

  • Achieving effective materials reuse - waste minimisation for circular land us

Roy Thun, Senior Environmental Specialist, GHD


15.10 Practicalities of Building a Robust Conceptual Site Model (CSM) for a Contaminated Site 

Exploring how to gain consensus, communicate risks, and integrate all your data at every project stage from discovery through to remediation, including:

  • Engaging specific stakeholders about site end-use requirements from the outset to ensure you are collecting exactly the information that you need & where you need it

  • Ensuring your data is of the highest quality and fit-for-purpose

  • Exploring how the different and robust conceptual site models (alternative hypotheses) for both hydrogeology and plume modelling can bring clarity about the scope and scale of a remediation strategy and give increased confidence as one goes forward 

  • Managing the trade-off between opinion vs quantifiable results

  • Providing auditable analyses for legal scrutiny

  • Effective management of contamination - monitor, resample, and remodel

  • Monitoring whether remediation has been successful

Dr Thomas D Krom, Segment Director, Environment, Seequent



15.30 Q&A


15.50 SuRF-UK’s 2020 guidance on Sustainability Assessment Process & Indicators for Remediation

  • Sustainable remediation, an introduction 

  • SuRF-UK guidance and use of sustainable remediation

  • 2020 guidance release

  • Process of sustainable remediation and its indicator categories

  • The SuRF-UK indicators in detail

  • Concluding remarks

Prof Paul Bardos, Director, r3 Environmental Technology Ltd & Joint Chair,  SuRF-UK Steering Group


16.10 Assessing the Impact of Climate Change on the Design & Effectiveness of Remediation Strategies

  • Incorporating future climate change projections into an environmental risk assessment - assessing the impact that effects such as increased rainfall, strong winds and prolonged dry spells could have on the movement of contaminants    

  • Exploring the consequences of this on the effectiveness of certain remediation processes (eg natural attenuation) 

  • Designing resilient and sustainable long-term remediation solutions to accommodate future changes in environmental and site conditions as a result of climate change

    • what impact will this have on currently used techniques? 

Scott D. Warner, Principal Hydrogeologist, Ramboll


Watch our Q&A interview with Scott here.


16.30 Q&A



16.45 Chair’s Closing Remarks and Session Close  

Thursday 22 October


10.00 Welcome from Environment Analyst

10.05 Welcome Back from the Session Chair

Paul Nathanail, Technical Director - Contaminated Land, GHD

10.10 Update on Land Contamination Risk Management (LCRM) Guidance

Outlining recent updates to the OA and remediation sections of LCRM


Angela Haslam, Senior Advisor, Land & Contamination Management Team, Environment Agency

10.25 Case Study: Exploring the Use of Biomarkers to Achieve Cost-Effective Risk-Based Remediation

RSK was initially commissioned to provide emergency response to the accumulation of oil in the pumping wells of a deep underground car park. The site was immediately down gradient of a petrol filling station (PFS) which was initially assumed to be the source of the oil. Over time the nature of the recovered oil appeared to change in terms of its physical appearance and this was supported by qualitative chemical analysis. Further investigation of the basement car park revealed possible alternative sources for the oil, including the hydraulic lift system which was used to lower cars into the basement. In order to prove the origin of the oil in the pumping well, RSK undertook detailed quantitative biomarker analysis of samples collected from all possible sources. 


Biomarkers are effectively “molecular fossils” and are resistant to chemical changes through oil diagenesis and generation, they can therefore be used to uniquely identify oil sources.  The biomarker analysis confirmed that the PFS was not the source of the oil and that the hydraulic lift system was the most likely candidate. 

This work avoided significant remediation costs and environmental liabilities for the owners of the PFS.

Andy Lee, Technical Director - Global Division, RSK Group

10.45 De-Risking a Large Infrastructure Project: Big Data, Collaborative Working and Adapting to an Evolving Environment


The Lower Thames Crossing project is a massive undertaking and ground engineering plays a significant role in ensuring the project is buildable and deliverable within a budget ultimately funded by the taxpayer. This talk will focus on the geo-environmental risks associated with the project, how we have worked with the rest of the project team to articulate the significance of the risks, and the methodologies used to develop a way forward through the Development Consent Order process.


Tony Windsor, Geo-Environmental Lead, Lower Thames Crossing and Associate Technical Director, Site Evaluation & Restoration, Arcadis

11.05 Q&A

11.30 Networking Session using our Virtual Face-to-Face Networking Platform

Exclusive to attendees, Environment Analyst Corporate and Strategic members and Network Pass holders.

Thursday 22 October


13.30 Welcome Back


13.35 Exploring the Use of Tax Incentives to De-Risk Contaminated Sites and Facilitate Development

  • An introduction to Leyton

  • Detailing the Government incentive schemes available:

    • Land Remediation Tax Relief

      • the types of sites and contaminants to which it is applicable

      • entitlement conditions

      • overall financial benefit

    • R & D Tax Relief 

      • the types of activities to which it is applicable

      • entitlement conditions

      • overall financial benefit de-risking contaminated sites:

    • Grants

      • the types of grants available 

  • Summary and Case Studies


Simba Mareverwa, Partner Innovation Incentives and Funding, Leyton

Kashif Rameez, Senior R&D Technical Consultant, Leyton

13.55 Treatment of Shallow Coal Seams on Development Sites by Prior Extraction 

  • Detailing what Prior Coal Extraction is and its role as part of the remediation process

  • Outlining the benefits and potential time and cost-savings:

    • stabilisation

    • reduced gas release

    • improving certainty of ground conditions 

  • Case Study examples


Richard Wood, Managing Director, Harland Resources

14.10 Q&A



14.20 EHC® Reagent in the Treatment of Carbon TetraChloride (CTC) contaminated groundwaters: 12 year Case Study of an installed PRB

This Case Study presents the data from a twelve year study of the degradation of chlorinated compounds in an aquifer, where a permeable reactive barrier was emplaced in 2005 (one of the first EHC injected barriers to be installed) on a site in the American Midwest. A remedial goal of 95% degradation of Carbon tetrachloride was set by Consultants, Arcadis, and the site was monitored for research purposes AFTER the initial 5 year period proved successful. A published Paper on the 150 month monitoring data is referenced, for more detailed reading.


Mike Summersgill, Technical Representative, UK & Ireland, PeroxyChem


14.40 Superoxide as a Green Reagent for Soil and Water Treatment

The contamination of soil and water by organic chemicals remains a significant worldwide problem, even after decades of research. We have developed a new process for efficient, rapid and economical superoxide preparation and applying it as a strong oxidizing agent, under NTP conditions. Under these conditions, superoxide radicals reveal properties of a super oxidizing agent that rapidly reacts with a wide range of soil and water pollutants on concentrations up to 100,000 ppm with a conversion rate up to 97%.

Dr Uri Stoin, Research & Development Chief, Alpha Cleantec

15.00 Q&A

15.15 Closing Remarks from the Chair & Close of Conference

Member & Network Pass Panel Discussion

Thursday 5 November, 14:00-15:30 GMT

Improving Stakeholder Communication & Collaboration in the Risk Assessment -Remediation - Development Process

  • Identifying the key areas of delay and concern for each party involved in the remediation and development process

  • Exploring the role of NQMS, SQPs and industry initiatives in improving the quality of, and increasing confidence in, information and reports 

  • How can improvements be achieved within current resource and funding constraints?

  • Strategies for improving early engagement, better communication and effective collaboration between local authorities, developers, remediation consultants & contractors, and other stakeholders to speed up the delivery of brownfield sites

John McAuliffe, Group Managing Director, McAuliffe Group

Seamus Lefroy-Brooks, Principal, LBHGEO & Chair, National Quality Mark Scheme (NQMS)

Lucie Watson, Senior Contaminated Land Officer, City of York Council

This event is available for attendees, Environment Analyst Corporate and Strategic members and Network Pass holders.