The National Contaminated Land Officers Group (NCLOG) is holding a Ground Gas Forum on the 1st April. Be it anthropogenic or from natural sources, ground gas still remains one of the key factors in land contamination risk assessment. The ground gas forum will look at new screening tools for identifying potential risk, and discuss new guidance and how key stakeholders view the issue of ground gas risk.

This event is being held by the National Contaminated Land Officers Group (NCLOG) which joined the IES at the start of 2025. All Contaminated Land Officers can join NCLOG for free, if you would like to join please contact NCLOG Officer Ellie Savage (ellie@the-ies.org).

This event is open to all NCLOG members, as well as those working in an environmental regulator. 

Our speakers

Dr. Darren Beriro, Principal Geoscientist, British Geological Survey

Darren is an interdisciplinary geoscientist with a passion for risk based land management of land contamination. Darren is the current chair of the National Brownfield Forum. In his role at BGS, he has worked with a wide range of external organisations, including landowners, developers, consultants, and regulators to increase the impact of geoscience in brownfield land redevelopment projects. Darren's research and publications include: i) spatial decision support tools to evaluate land suitability for different applications (e.g. renewable energy, land redevelopment); ii) laboratory methods to measure the content and bioaccessibility of chemicals in soil that are harmful to human health; and iii) data driven modelling of soil and rock geochemistry.

Aliyssa Glen, Principal Consultant, WSP

Aliyssa is a Chartered Environmentalist with over 9 years’ experience working as a contaminated land consultant. She has particular interest in and experience of complex ground and mine gas risk assessments, and routinely mentors junior staff in related risk assessment, remediation and verification requirements. At WSP, she is sub-leader of the Ground Gas group and provides internal training on mine and ground gases, and she also sits on the SoBRA Ground Gas Subgroup.

Matt Lennard, Principal Geo-Environmental Engineer, NHBC 

Matt is a Chartered Geologist and ASoBRA accredited risk assessor (human health and vapour intrusion) with 25 years experience in the contaminated land industry where he has worked for consultants, contractors and land-owners before joining NHBC in 2016.

Amy Juden, Head of Geoenvironmental at The Environmental Protection Group Ltd

Amy is a Chartered Geologist and ground gas specialist. She has worked as a contaminated land consultant for brownfield redevelopment for over 12 years. Amy has undertaken complex assessments for coal mine gas ingress on many sites, routinely undertaking detailed quantitative modelling and employing bespoke monitoring techniques. She is author of 2023 NHBC guidance on hazardous ground gases, provides training for CL:AIRE on ground gas risk assessment, and for the Geological Society on methane and radon geohazards.

More to be announced!