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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Archive: Feb 2017

  1. Contaminated land is a spatial problem right?

    All contaminated land site investigations need a plan or map to get started – you need to know how to get there for a start!  The map is the first building block to a good outcome for you, your client and the regulator.

    Whether you are developing your initial conceptual site model, planning your preliminary or staged site investigations (SI) or interpreting  you will need to collate your thoughts and log where you are going to do (or have done) What, When and Where.

    This is where the ability for you (as SI Designer/Investigator, Risk Assessor, Report Writer, Consultant, Project Manager, Reviewer, Developer, Planning Authority, Regulator) to easily and quickly collate and query this data using a Geographic Information System (GIS) comes in very handy. After all, the many samples you may take from a site will have a spatial property (lets ignore composite samples!). They are taken from a location in space (Easting, Northing, Depth) and hence not only does its physical or chemical properties matter but so too does its spatial reference and position relative to neighbouring samples and across the whole site.

    Therefore, why are so many contaminated land site investigations, risk assessments and evaluation reports produced which have not effectively (or at all) considered, interrogated or presented their data spatially? Very often the critical contaminant data is lumped together and superficially analysed using summary statistics (min, max, average, etc), which leads to poor quality decision making, volume calculations and potentially costly or risky mistakes for clients and potential receptors.

    Is the potential cost of buying and maintaining GIS software or lack of training a potential problem to you or other contaminated land practitioners out there?

    If that is the case then LQM are running a couple of events at the beginning of March 2017 that can help you address these problems:

    1st March & 20 June 2017  Getting value from your data: a hands on GIS Course  Using QGIS, a free and open source GIS, this one day hands-on course will show you how plotting and querying your chemical data and combining it with other geographic data (e.g. Historical Maps, Open datasets, Web Mapping Services) can help you understand the sources and risks at a site, and how this might justify more cost effective solutions – getting full value from the data for you and your clients. The course is ideally suited to those with no previous GIS experience or people looking to apply and develop skills within the QGIS environment. View this Video for more info or Booking Here.

    2nd March 2017  Executive Briefing Webinar: Geostatistics – Understanding the Significance of Variations in Contaminant Concentration Across a Site Brownfield. Brownfield Briefing and Land Quality Management’s third Executive Briefing Webinar, Geostatistics, takes place on 2nd March at 13:00-15:00 GMT. It will de-mystify the powerful but jargon rich world of geostatistics, highlighting the value of the variogram and the pitfalls of commonly used interpolation techniques to support generating contour plots and estimating areas or volumes to remediate. Professor Paul Nathanail, Managing Director of Land Quality Management Ltd who will discuss:

    • What is geostatistics and why is it useful for contaminated land management?
    • Contaminant distribution across a site
    • Optimizing infill sampling campaigns
    • Enhanced conceptual models
    • Avoiding common pitfalls

    Register (Price: £99 (BB subscribers: £89)) for the Executive Briefing Webinar.