Quantitative soil vapor: An innovative tool for site characterization and remediation
Conference
·
OSTI ID:398114
This work has included comparisons of concentrations of volatile organic compounds (VOCs) in soil vapor with those in collected soil samples at several sites. Hundreds of soil/soil vapor sample pairs have been analyzed. This work has shown that quantitative soil vapor sampling is a better tool than traditionally collected soils for estimating VOCs in the vadose zone. These comparisons have shown that soil vapor provided a better VOC estimate than soils in more than 90% of the comparisons in various soil types. The authors discuss these comparisons, the QA/QC data required for quantitative soil vapor, various ways to analyze the data and sensitivity analyses performed on the data. In addition, they focus on using the vapor data as a tool to: locate non-aqueous phase liquids (NAPL) in the vadose zone; better conceptualize the VOC distribution in the vadose zone; better design remedial systems, specifically soil vapor extraction systems; better negotiate realistic cleanup levels and corresponding realistic remedial management strategies. A case study illustrating these issues, including cleanup levels in terms of vapor VOC concentrations, will be presented.
- OSTI ID:
- 398114
- Report Number(s):
- CONF-960393--
- Country of Publication:
- United States
- Language:
- English
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