| The Help End Landfill Pollution (HELP) Project of Alberta Environment has identified five inactive wood preserving sites in Alberta. This study is directed at evaluating assessment strategies and remediation alternatives for wood preserving sites in Alberta, with specific application to the five abandoned sites.;Of the assessment strategies considered, risk assessment/risk management, fixed criteria, and a modified risk assessment model were found to have the widest range of capabilities.;Remediation technologies are used to achieve cleanup levels at contaminated sites. Eight alternatives were evaluated for their ability to remediate the different contamination forms existing at wood preserving sites: landfill disposal, solidification/stabilization, incineration, enhanced land treatment, in situ bioreclamation, vapour extraction, in situ soil washing, and pump and treat. An analysis of these methods indicated that no one technology could effectively remediate all contamination forms. (Abstract shortened by UMI.).;Three wood preserving mixtures were used at the five sites, and are typically used in Alberta: pentachlorophenol (PCP)-based, creosote-based, and chromated copper arsenate (CCA)-based. |
