Research and analysis

Land contamination: remedial targets methodology (RTM)

Hydrogeological risk assessment guidance and tool to set targets to remediate (clean up) contaminated land or groundwater.

• From: Environment Agency
• Published: 1 January 2006
• Last updated: 4 August 2014 — See all updates

Documents

Remedial Targets Methodology: Hydrogeological Risk Assessment for Land Contamination - main report

Ref: LIT 6627

PDF, 1.69 MB, 129 pages

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Hydrogeological Risk Assessment for Land Contamination. Remedial Targets Worksheet v3.2

Ref: LIT 7772

MS Excel Spreadsheet, 714 KB

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Remedial Targets Worksheet V3.1: User Manual

Ref: SCHO1006BLMX-E-E, LIT 4287

PDF, 803 KB, 35 pages

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Details

This report presents a recommended methodology for deriving site-specific remedial (clean up) objectives for contaminated soils or groundwater to protect the aquatic environment.

The methodology applies to soils and groundwater that are already contaminated, where the original surface source of the contamination has stopped.

The methodology consists of up to 4 assessment levels which progressively follow the pathway from the contaminant source through to the receptor. A remedial target is derived at each level, but this is likely to be less stringent at the next level as additional processes such as dilution are taken into account. This approach enables attention to be focussed on those sites where the risks are greatest.

User manual version 3.1 is valid for use with worksheet version 3.2.

Published 1 January 2006
Last updated 4 August 2014 + show all updates

1. 4 August 2014

   Corrected wrong file that was added in transition to GOV.UK website: replaced user manual version 2.2a (first published 2001) with version 3.1 (first published 2006).

2. 27 May 2014

   Added supporting guidance and Excel tool.

3. 1 January 2006

   First published.