Working Group Contaminated Land

The Group works to keep Members informed of developments to do with contaminated land and the environment. It provides advice and feedback to other organisations, committees (eg BSI) and government bodies on documentation and policy.

Strategic Plan

  1. To provide an authoritative voice on contaminated land to outside bodies
  2. To provide a forum for the exchange of information and experience on issues related to contaminated land
  3. To influence the development of good regulation though participation in government and by providing consultation responses to documents produced by Government and other parties.
  4. To promote good practice and high professionalism and preparing position papers on current issues and events
  5. To promote an understanding of the interaction of geotechnical and environmental in the assessment of land quality.

AGS CLWG – Terms of Reference


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AGS Annual Conference 2024

The AGS Annual Conference 2024 will be taking place on Thursday 25th April at One Great George Street in Westminster, London. This…

Price: £216.00
AGS Member: £132.00
Student: £106.80
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Annual Conference 2023

The AGS Annual Conference took place on Thursday 27th April 2023 at the Barbican Centre in London. This full day, networking event saw…

Ground Risk Conference: Are you Managing Risks or Taking Risks?

Geotechnical engineering and geoenvironmental specialists deal with risk daily from commencement of a project through to final delivery. Working with the ground…

Client Guide

A Client’s Guide: The Purpose and Use of Geoenvironmental Reports

Published December 2022 A good ground investigation should help delivery to clients of well-designed projects, that can be properly planned and constructed…

Client Guide

Client Guide: The Purpose and Use of a Ground Condition ‘Desk Study’

Published August 2022. This version replaces ‘Client’s guide to desk studies’, which was published in December 2006. This guide is for clients…

The New Yellow Book – UK Specification for Ground Investigation

The UK Specification for ground investigation (the Yellow Book) has been revised by an industry working group led by the AGS and…

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View all Articles
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Surface emission surveys to measure ground gas

Surface emission surveys are used to measure the rate that ground gases are emitted into the atmosphere, which can be quantified in…

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Use of chemical preservation – the importance of quality in sampling and analysis

Geraint Williams, ALS Laboratories and Tim Rolfe, YES Engineering, both members of the AGS Contaminated Working Group, discuss how representative samples should…

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A comprehensive comparison of field-based analytical technologies for both qualitative and quantitative determination of petroleum hydrocarbons in soils

Petroleum hydrocarbons are common soil contaminants that pose a risk to human and environmental health. Different analytical methods are used to determine…

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Assessment and Mitigation of Turbidity Risks from Piling

In recent years geo-environmental practitioners have experienced an increasing drive from regulators and water companies to assess risks to groundwater abstractions from…

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Findings of SiLC DoWCoP industry survey: regulatory challenges for regeneration of historical landfills and reuse of stockpiles and mineral waste

Given on-going interest and concerns about regulatory constraints to the regeneration of former landfill sites, Specialist in Land Condition (SiLC) has been…

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A refresher on clean cover systems

Image credit to Andrew Tranter, Principal Environmental Consultant at RSK Clean cover systems are one of the most commonly applied remediation techniques…


Adam Cheers Hydrock Consultants Ltd
Adam Putt Jackson Drilling
AGS Business Practice WG Leader & AGS Chair Elect Alex Lee HKA
AGS Sustainability WG Leader Alison Nicholson Buro Happold, Ground Engineering
Andrew Sykes Element Materials Technology Environmental UK Limited
Andrew Tranter RSK Environment Ltd
Andy O’Dea Cognition Land and Water Limited
Angela Haslam Environment Agency
Barry Mitcheson WSP
Chris Evans SOCOTEC
Chris Everitt Delta-Simons
Chris Swainston
Claire Daly Hydrock Consultants Ltd
Claire Stone I2 Analytical Limited
Daniel May BAE SYSTEMS Environmental
Danny Lusardi Geo-Integrity Ltd
Darren Beriro British Geological Survey
David Entwisle British Geological Survey
Eleanor Cook Arup Geotechnics
Elspeth Harris Royal HaskoningDHV
Emma Jones National House Building Council
AGS Contaminated Land WG Leader Geraint Williams ALS Laboratories (UK) Limited
Hugh Mallett Buro Happold, Ground Engineering
James Wilson Atkins Consultants
John Masters Geolabs Ltd
Jon Raven Arcadis (UK)
Jonathan Cundall National House Building Council
Kelvin Hughes Delta-Simons
Lauren Hunt Arcadis (UK)
Louise Beale SLR Consulting Limited
Madeleine Bardsley WSP
Marian Markham Jacobs UK Ltd
Matt Riding HKA Global Ltd
Michael Smith Specialist member
Mike Plimmer Geotechnical & Environmental Associates
Neil Parry Geotechnical Engineering Ltd
Nick Hills Stantec UK
Nina Sopp Buro Happold, Ground Engineering
Paul Nathanail Land Quality Management Ltd
Petra Lincoln Atkins Consultants
Robert Brown Eurofins Chemtest Ltd
Roger Clark Honorary member
Seamus Lefroy-Brooks Specialist member
Tim Hodges Mott MacDonald
Tim Hull BWB Consulting Ltd
Tim Mitchell WSP
Tim Rolfe Tim Rolfe
Tomaz Vernik Cognition Land and Water Limited
Will Chambers EnviroSolution Limited