12 May:


Ground Gas Risk Assessment

Understanding the True Risks from Ground Gases and Soil Vapours to Provide Cost-Effective Solutions to Brownfield Development

  • Clarifying the requirements of current regulations for ground gas and vapour risk assessment on development sites and recent progress made both in the UK and internationally

  • Understanding where uncertainties and misconceptions occur in risk-assessing the most common contaminants and how these can be addressed:

    • techniques for preventing overly conservative or incorrect assessments

  • Effectively interpreting continuous gas monitoring data and analytics

  • Understanding the reasons for elevated gas concentrations to determine if / the extent to which gas membranes are required

Steve Wilson, Technical Director, The Environmental Protection Group Ltd (EPG)  

Examining the Risk of Carbon Dioxide Arising from Disused Mineral Mines and the Implications: Recent Findings

RSK was appointed by the Scottish Government to carry out a research project into the prevalence of CO2 from disused mineral mines and the resulting risk to residential buildings, which was published recently. This talk will cover:  


  •  Introduction and context to the Scottish Government research project

  • The Gorebridge incident in Scotland and other identified incidents of mine related CO2 emissions in the UK and beyond

  • The nature of abandoned mine-workings and circumstances where risks related to CO2 emissions are raised

  • Key findings of the research report including expert views on the adequacy of current standards and guidance versus use of mandatory gas protection measures in coalfield areas

  • The role of uncertainties including groundwater rise, climate change effects and cumulative development

  • Report recommendations including proposed changes to planning and building standards and guidance,  further research requirement and wider implications for all UK coalfields beyond Scotland


Dr Tom Henman, Director - Geosciences, RSK    




Exploring how Gas Migrates through the Ground and is Affected by the On-Site Geology

Case Study: Innovative and site-specific ground gas investigation and assessment at Whitecliffe in Kent

This case study will explain how the latest ground gas investigation and risk assessment methods have added significant value on a major development project. The site is a 260-hectare former chalk quarry with consent for residential development with over 6,000 homes. Land forming earthworks are in progress, with the reuse of millions of cubic metres of soil. The challenging ground conditions have led to unique ground gas considerations. While the initial cost of investigation and assessment increased to accommodate the innovative approach, the long-term benefits will dwarf the initial investment. 


The presentation will explore:

  • The importance of the conceptual model in defining the gas risk assessment

  • How continuous monitoring techniques and advanced data analytics can be used

  • The benefit of multiple lines of evidence in robustly demonstrating conclusions and supporting regulatory approval to novel approaches that go beyond published guidance

  • The potential tension between good science and commercial risk. 


Amy Juden, Contaminated Land Consultant, Arup    



Retrofitting Gas Protection Measures to Existing Buildings: Outlining the Findings, Conclusions & Recommendations of Soon to be Published CIRIA Guidance


13 May:

Improving the Quality of Gas Protection Installation & Verification

Outlining the Objectives and Timescale of the Proposed Gas Protection Verification Accreditation Scheme

Outlining the Role of the British Verification Council in Improving Gas Protection Verification Standards

Panel Discussion and Audience Q&A

  • Social media-04
  • Social media-01

All content © 2020 Environment Analyst