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Contaminated Land - Update to the Generic Assessment Criteria

posted 26 Jan 2015, 00:50 by Unknown user   [ updated 27 Jan 2015, 03:48 ]
To make up for the gap in the Contaminated land Soil Guideline Values, generated on behalf of the UK government, Land Quality Management Limited and the Chartered Institute of Environmental Health published around 30 additional Generic Assessment Criteria values in December 2006.

Due to advances in research on the subject and the release of new guidance from government, these GAC are to be updated and expanded to include around 90 potential contaminants. To avoid confusion these values are to be named Suitable For Use Levels (S4UL).  Furthermore these S4UL have been modelled on 6, rather than the original 3 land use scenarios. These scenarios are:
  • Residential With Home Grown Produce
  • Residential Without Home Grown Produce
  • Allotments
  • Commercial
  • Public Open Space – Residential
  • Public Open Space – Parkland
The most significant aspect of the release of the S4UL for developers is the creation of the Residential Public Open Space scenario, which is envisaged to have less stringent thresholds than the residential gardens scenarios, which should allow and promote the reuse of more soils on site and reduce muckaway costs.

The release of the S4UL is now overdue and SES will begin using them and incorporating them into their reports as soon as they become available.