Report on a Contaminated Land Site

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Report of the Contaminated land site at

Harpurhey, Manchester (GR SD854 016)

For the Environmental Protection Committee, Manchester City Council.

21 April 2009

Sarah Lumb




Site Summary

The site at Harpurhey, Manchester (NGR SD 854 016) covers 4.8 hectares, much of which is polluted by various contaminants.  The intended land use is for recreational purposes.  Assuming this means that children will be on the site and at risk of contact with the contaminant a great extent of remediation is necessary.

Table 1: Sumary of Contamination

Pollutant Linkage

The remediation strategy will aim to render the site appropriate for recreational purposes.  This will be achieved by finding the most appropriate method do breaking the significant pollution linkage (figure 1).

This may be done by removing the contaminant or pathway.  Since the proposed land use is already determined the receptor cannot be removed.  In this instance the most sensitive receptor is likely to be children since it is proposed to redevelop the site for recreational purposes.

Leachability tests show that a high proportion of the cyanide and polycyclic aromatic hydrocarbon compounds present in the samples taken are adversely affecting passing waters.  This is one of the pathways of the pollutant to the receptor.

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Another pathway is through ingestion, especially since children are likely to be present on the site and may consume some of the soil.

Other pathways likely to affect less sensitive receptors include skin contact and inhalation of small particles of the contaminant suspended in the air.

Significance to Human Health and the Environment

Heavy metals, such as lead and zinc as found on the site, when ingested in large enough concentrations can cause respiratory cancers, kidney dysfunction, birth defects and emphysema and other lung disorders.  Since small children are likely to be on the site due ...

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