Land contamination: technical guidance

Technical guidance on the management of contaminated land including how to investigate, assess and manage the risks.

Risk management

Risk assessment: the water environment

You can use the ‘ConSim’ tool to assess the risk that’s posed to groundwater by leaching contaminants. Get the ConSim software.

Risk assessment: human health

Find out about category 4 screening levels (C4SL) in Defra’s research project Development of Category 4 Screening Levels for assessment of land affected by contamination - SP1010.

Land contamination reports

Summaries of Defra reports and surveys measuring land contamination.

Site characterisation: field and laboratory analysis

See soil monitoring for the quality requirements for chemical test data.

Updates to this page

Published 27 May 2014
Last updated 11 February 2022 + show all updates
  1. Added Land contamination risk management (LCRM) to this collection.

  2. Some documents from the 1990s which aren't used now have been withdrawn. The collection is now grouped more clearly and the messaging has been removed from this collection because all of the important information is now in which has been brought into this collection.

  3. Added link to contaminated land capital projects forms.

  4. Linked to additional publications.

  5. First published.