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Toxics Program Remediation Activities | ||||||||||||||||||||
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Type |
Site Characterization |
Location | Kingsford, Michigan |
Partners | |
Technology | Isotopic Analysis |
Contaminants |
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Description |
In 1995, a house in Kingsford, Michigan, developed explosive levels of methane (CH4) that was degassing from the aquifer below the house. Methane built up in the basement, and eventually an explosion occurred. The methane was likely the result of the microbial degradation of organic compounds in a plume of contaminants emanating from nearby industrial areas. The operation of charcoal production and other industrial facilities led to the release of organic compounds, such as pyroligneous acid, creosote, and tar into the subsurface. As the organic compounds migrated away from the industrial areas, microorganisms converted the organic compounds to methane and carbon dioxide, creating plumes of methane in the subsurface. The methane moved with the natural ground-water flow system and escaped to the surface. To help determine the source of the methane-generating ground water, USGS scientists used compound-specific carbon-isotope analysis. The isotopic signature of the contaminants was used to help identify if there was one or more sources of contamination and to help understand the natural degradation of the contaminants. |
More Information | |
Contact | Edward M. Godsy, USGS, National Research Program, Menlo Park, CA, |
Publications |
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Links |
USGS Information on Natural Attenuation
Toxics Hydrocarbon Remediation Projects
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U.S. Department of the Interior, U.S. Geological Survey
Toxic Substances Hydrology Program
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Last modified on
Monday, 02-Aug-2004 15:11:53 EDT
The URL for this document is http://toxics.usgs.gov/topics/rem_act/kingsford.html