US EPA

2179593 

Journal Article 

Remediation of Smithville, Canada, PCB spill site 

O'Neill, JE; Mayes, J 

2000 

173-179 

WOS:000089259500022 

The Smithville Phase IV Bedrock Remediation Board was established to manage and remediate a site in Smithville, Ontario, Canada, where 30,000 L of DNAPL (consisting of PCB, TCB and TCE) leaked into a fractured carbonate rock aquifer. The Board established a team of world-class experts and formed partnerships with research groups in Canada and the United States to develop new technical solutions for the contamination. The experts successfully characterized the site using state-of-the-art methods. The engineering studies are evaluating four groups of alternatives: a permeation grouted barrier in the fractured bedrock to contain the aqueous plume, pump and treat, monitored natural attenuation and thermal wells to remove the source zone. Combinations of these technologies were also under consideration.