Environmental management – collection

Land contamination: technical guidance

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

Risk management

  1. Land contamination: risk management

    • Detailed guide
  2. Managing and reducing land contamination: guiding principles (GPLC)

    • Guidance

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.

  1. Groundwater protection: principles and practice GP3

    • Guidance
  2. Land contamination: remedial targets methodology (RTM)

    • Research and analysis

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.

  1. Human health toxicological assessment of contaminants in soil (SR2)

    • Research and analysis
  2. Updated technical background to the CLEA model (SR3)

    • Research and analysis
  3. Contaminated land exposure assessment (CLEA) tool

    • Guidance
  4. Land contamination: using soil guideline values (SGVs)

    • Guidance

Land contamination reports

Summaries of Defra reports and surveys measuring land contamination.

  1. Contaminated land reports

    • Research and analysis
  2. Indicators for land contamination

    • Research and analysis

Site characterisation: field and laboratory analysis

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

  1. MCERTS: performance standard for laboratories undertaking chemical testing of soil

    • Guidance
  2. MCERTS: performance standard for laboratories undertaking chemical testing of soil - a brief guide for procurers of analytical services

    • Guidance