LQM is a specialist environmental consultancy based in Nottingham (UK) with an international reputation for assessing and managing the risks posed to human health and the environment by contaminants in soil. Increasingly this is being done within a context of sustainable development and specifically sustainable brownfield regeneration.

We provide consultancy, peer review and expert witness services, contract research and training courses on all aspects of the management of land contamination to problem holders, developers and local government.

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Meet the team

Dr Paul Nathanail

C.Paul Nathanail MA (cantab), MSc, DIC, PhD, FGS, CGeol, SiLC

Managing Director

Dr Paul Nathanail is a Specialist in Land Condition (SiLC) and a Chartered Geologist. Paul's expertise includes developing decision support tools for regulators and industry, developing spatial and non spatial environmental risk assessment tools and developing tools to facilitate sustainable brownfield regeneration. He has extensive contacts with industry and regulators in the UK, Europe, Africa, Asia and North America. He has recently been appointed to the Defra expert panel on contaminated land. He has acted as an expert witness in several planning, environmental and criminal cases.

Judith Nathanail

Judith Nathanail

Company Secretary and Senior Environmental Consultant

Judith Nathanail is Company Secretary and a Senior Environmental Consultant at Land Quality Management Ltd.

She has over thirteen years experience in the field of contaminated land and has projected managed numerous site investigations. She contributes to several courses run by LQM, principally geology, site characterisation, risk assessment and remediation.

She has produced numerous conceptual models and carried out site specific risk assessments using the recently released SNIFFER methodology. She has been involved in a range of remediation projects including excavation and disposal, soil vapour extraction, air sparging and one of the first bioremediation schemes for the UK. Among other things she is currently working on developing an aide memoir of key information for contaminated land specialists covering many risk characterisation and risk assessment tools and providing essential data for designing remediation schemes for most of the currently available remediation techniques.




Dr Andy Gillett

Andrew G. Gillett BSc, MSc, PhD

Project Manager

Andy Gillett studied Geophysics and Planetary Physics at the University of Newcastle-upon-Tyne, followed by an MSc in Environmental Science at the University of Nottingham and subsequent PhD in modelling environmental systems. He is trained as an environmental systems analyst and modeller with 4 years post-doctoral research experience (radioisotope and crop-environment interaction modelling), with 17 years contaminated land consultancy experience. Extensive risk assessment experience of developing and utilising deterministic and probabilistic human health risk assessment tools (CLEA, RBCA and SNIFFER), for landfills (GasSim and LandSim) and controlled waters (ConSim and Remedial Targets Methodology). GIS modeller and trainer (ArcGIS, QGIS), statistical data analysis (R). Wide range of Part 2A site investigation experience and technical review of third-party reports, including those involved in litigation proceedings. Co-author of both editions of the LQM/CIEH Generic Assessement Criteria, the Dose Response Roadmaps and the LQM/CIEH S4ULs for Human Health Risk Assessment.


Dr Richard Ogden

Richard Ogden BSc (Hons), PhD, PIEMA

Project Manager

Richard Ogden studied biochemistry and marine biology at Bangor University and went on to gain his PhD studying the genetics involved in the bioremediation of several persistent organic pollutants, including PCBs. He spent 5 years as a consultant within BAE SYSTEMS assisting with the regeneration of a number of large industrial sites but also conducting studies into the bioremediation and plant uptake of several explosive and propellant compounds. Subsequently, he moved to CEH in Oxford for a short period investigating contaminant bioavailability and bioremediation before joining LQM in March 2003.

Since then he has been involved in numerous projects throughout the UK, including site investigation and detailed quantitative risk assessment works at several high profile, complex and controversial sites, including gas works and coking works. He has extensive experience of working under both the planning and Part2A regimes. He is a key member of our training team, developing and teaching a range of well received courses, and increasingly online training. He assisted in the development of several industry guidance documents, including the Suitable 4 Use Levels (S4ULs), which are widely used by consultants and regulators as soil screening values. He has also participated in the development of several widely used software tools, including the PAH toolkit and the LQM Dose Response Roadmaps. He also has experience working as part of an expert witness team and has undertaken several peer reviews for planning authorities and made representations at Local Plan Examination hearings before a Planning Inspector.

Richard has gained considerable experience with regards sites where asbestos is present within soils due to historic industrial activity, tipping or burial of wastes or use of contaminated demolition arisings or made ground and the difficulties in assessing and managing the real and assumed risks that such asbestos-containing soils (ACS) may pose. Based on this experience, he co-authored the Ciria C733 guidance “Asbestos in soil and made ground: a guide to understanding and managing risks” that was published in 2014. Since then he has delivered training courses and conference presentations and been involved in several initiatives aimed at addressing the problems posed by ACS to UK development industry.