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A NEW DEVICE AND METHOD FOR MEASURING VOLATILE COMPOUNDS IN MONITORING WELLS
| Content Provider | United States Department of Energy Office of Scientific and Technical Information (OSTI.GOV) |
|---|---|
| Author | Vangelas, K. Warren Hyde, W. Brian02 Looney, B. Kirk Cantrell, K. Tyler Gilmore, T. |
| Organization | SRS |
| Abstract | Accurate, timely measurement of chlorinated solvents and other volatile contaminants in groundwater is crucial to support responsible environmental management. Traditionally, two distinctly different paradigms have been explored to meet this need--fixed laboratory analysis and ''real-time'' sensors. While these alternatives remain important, field based and field screening tools represent a potentially useful intermediate approach that balances some of the advantages and disadvantages of the traditional ''endmember'' paradigms. The value of accurate, in-field measurements during characterization was recognized in recent sampling/decision methods, such as the TRIAD approach (ITRC, 2003). Strategies that support gathering accurate data on the timescales representative of the rate of change of the system (e.g., months to years, not seconds to minutes) is key for long-term monitoring for chlorinated solvent plumes in which attenuation based remedies are being considered. A team of researchers developed a down-well sampling device that, when used in combination with field gas analysis tools, provides data in the field. The test results indicate this tool, as configured, will provide accurate measurements (as compared with laboratory methods) at concentrations in the hundreds of ppb or higher range, but require confirmatory traditional sampling with laboratory analysis at concentrations approaching 20 ppb and less. The logistics and costs of the sampling device were somewhat complex. The results of the study, while equivocal, generally suggest that future development of this type of in-field technique may be warranted. |
| Sponsorship | USDOE |
| Related Links | https://www.osti.gov/biblio/901451 |
| File Format | |
| DOI | 10.2172/901451 |
| Language | English |
| Publisher Date | 2006-11-06 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | ENVIRONMENTAL SCIENCES WATER WELLS VOLATILE MATTER GAS ANALYSIS MONITORING PLUMES SOLVENTS GROUND WATER FIELD TESTS SAMPLERS ORGANIC CHLORINE COMPOUNDS PROBES |
| Content Type | Text |
| Resource Type | Technical Report |
