Sites contaminated by chlorinated solvents present a daunting environmental challenge. Chlorinated solvents are prevalent and persistent groundwater contaminants, found at tens of thousands of sites worldwide. They also are among the most difficult groundwater contaminants to remediate, especially at sites with dense non-aqueous phase liquid (DNAPL). Restoring sites contaminated by chlorinated solvents to typical regulatory criteria (low parts-per-billion concentrations) within a generation has proven exceptionally difficult.
Site managers must recognize that complete restoration of many of these sites will require prolonged treatment and involve several remediation technologies. To make as much progress as possible within a generation requires a thorough understanding of the site, clear descriptions of achievable objectives, and use of more than one remedial technology. Making efficient progress will require an adaptive management strategy, and may also require transitioning from one remedy to another as the optimum range of a technique is passed. Targeted monitoring should be used and re-evaluation should be done periodically.
In this ½ day workshop, the fundamentals behind such an Integrated DNAPL Site Strategy (IDSS) will be discussed according to these five key concepts:
Who should attend?
This IDSS training is intended for regulators, remedial project managers, and remediation engineers responsible for sites contaminated by chlorinated solvents. Attendees should be familiar with the latest evolution of site characterisation challenges; realistic planning of site restoration; evolving treatment techniques; and evaluating, monitoring and interpreting mass transport in the subsurface aqueous and vapour phases. In addition to chlorinated solvent contaminated sites, other types of contaminated sites (e.g. petroleum, mixed contaminants, etc.) will also benefit from this workshop.
8:30am Welcome and introductions
Behaviour of DNAPLs and chlorinated solvent plumes in the subsurface
SMART remediation objectives
10:00-10:30am Morning tea
Developing a monitoring approach
12:30pm Close for lunch
Naji Akladiss, Maine Department of Environmental Protection
Heather Rectanus, Battelle
Charles Newell, GSI Environmental Inc
Tamzen Macbeth, CDM Smith
Registration and Fees
Registration fees for the half day workshops are $350. This includes workshop registration, all catering, workshop materials and handouts.