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| | PolyMet Risk Assessment Report |
 | | This site was used for decades for metallurgical investigations and as an Ontario Government assay laboratory and over the years suffered environmental impact from the on-site dumping of lead-bearing wastes and other materials. |
 | | Twelve individual contaminants were considered in the risk assessment: antimony, arsenic, cadmium, cobalt, copper, iron, lead, mercury, nickel, silver, boron and nitrite since these were the parameters that exceeded the MOE's clean-up guidelines. |
 | | For human health, the risks are unacceptable for children coming into contact with the soils and so a recommendation has been made to isolate the wastes/soils by asphalting the surface. |
| www.polymetinc.com /riskassessment.htm (436 words) |
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