The principal legislation governing the identification of contaminated land is Part IIA of the Environment Protection Act (EPA) 1990 . The Act provides a statutory definition of contaminated land:
“Contaminated Land is any land which appears to the Local Authority in whose area it is situated to be in such a condition, by reason of substances in, on or under the land, that – Significant harm is being caused or there is a significant possibility of such harm being caused; or Pollution of controlled waters is being, or is likely to be caused.”
In the UK, establishing whether harm is being caused or likely to be caused uses a risk based approach and risks are assessed using a “Source-Pathway-Receptor” approach. Such an approach recognises that risks from site-based contaminants can only exist where all three components are present. For a liability to exist a ‘pollutant linkage’ must exist which presents a risk to humans, to the environment or to controlled waters.
Contamination risk assessment follows this methodology, with the following definitions:
- Source: nature and magnitude of contamination;
- Pathway: means by which contamination can reach and impact upon a receptor; and
- Receptor: that which may be adversely affected by the presence of contamination.
The risk based approach to land contamination management calls for an initial stage of risk assessment which becomes the basis for any subsequent remedial design. Central to our service therefore is the provision of a robust and defensible assessment of the risks associated with a particular site.
SRS brings a wealth of consultancy and risk modelling expertise that integrates well with engineering design, regulator negotiation and contract implementation, ensuring consistency throughout the project.
Our team ensure that site specific risk assessment are pragmatic and are undertaken within the relevant and appropriate context. SRS’s quantitative risk assessment capabilities include ConSim, CLEA, RBCA, P20, and others.
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