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Desktop Environmental, Hydrological and Geotechnical Study

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Table 15 Qualitative risk assessment, PSP Area 25<br />

Source Activity Contaminant Critical Receptor Pathway<br />

Large-scale<br />

agriculture (market<br />

gardens, intensive<br />

agriculture)<br />

Large-scale<br />

agriculture (market<br />

gardens, intensive<br />

agriculture)<br />

Large-scale<br />

agriculture (market<br />

gardens, intensive<br />

agriculture)<br />

Large-scale<br />

agriculture (market<br />

gardens, intensive<br />

agriculture)<br />

Large-scale<br />

agriculture (market<br />

gardens, intensive<br />

agriculture)<br />

Heavy metals,<br />

pesticides, herbicides,<br />

fertilisers<br />

Heavy metals,<br />

pesticides, herbicides,<br />

fertilisers<br />

Heavy metals,<br />

pesticides, herbicides,<br />

fertilisers<br />

Heavy metals,<br />

pesticides, herbicides,<br />

fertilisers<br />

Heavy metals,<br />

pesticides, herbicides,<br />

fertilisers<br />

Human (Current<br />

Site Users)<br />

Human (Future<br />

Site Users<br />

including<br />

construction<br />

workers)<br />

Human (Adjacent<br />

Site Users)<br />

Groundwater<br />

Surface water<br />

Dermal Contact,<br />

Ingestion,<br />

Inhalation<br />

Dermal Contact,<br />

Ingestion,<br />

Inhalation<br />

Dermal Contact,<br />

Ingestion,<br />

Inhalation<br />

Permeation<br />

through Soil<br />

Profile<br />

Perched<br />

Groundwater<br />

Flow, Surface<br />

run-off<br />

Potential<br />

Effects<br />

Toxic,<br />

Carcinogenic,<br />

Hazardous to<br />

Human Health<br />

Toxic,<br />

Carcinogenic,<br />

Hazardous to<br />

Human Health<br />

Toxic,<br />

Carcinogenic,<br />

Hazardous to<br />

Human Health<br />

Groundwater<br />

Contamination<br />

Surface Water<br />

Contamination<br />

Potential<br />

Consequence of<br />

Contaminant-<br />

Receptor Linkage<br />

Project 230243-001-01 | File 20120912 PSP25 <strong>Desktop</strong> 230243.docx | 13 September 2012 | Revision 2<br />

p 28<br />

Likelihood<br />

of Source-<br />

Receptor<br />

Linkage<br />

Risk<br />

Classification<br />

Severe Possible Moderate<br />

Severe Likely High<br />

Severe Unlikely Low<br />

Severe Possible Moderate<br />

Severe Possible Moderate<br />

Comments<br />

Risk of<br />

exposure for<br />

construction<br />

workers

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