Chlorinated Solvents in Fractured Sedimentary Rock - Naval Air Warfare Center (NAWC) Research Site, West Trenton, New Jersey
In 2004, USGS drillers cored a hole just east of the site to determine the location of a fault that passes through the site, and to better understand its geologic and hydrogeologic properties. The fault zone impedes the flow of groundwater and is a major control on the groundwater flow system at the NAWC site.
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Toxic chemicals such as chlorinated solvents in fractured rock aquifers
pose a serious threat to the Nation's ground-water resources. Many industrial
centers in America are located in the piedmont physiographic region where
fractured rock aquifers are common. Improper disposal methods, leaking
tanks and pipes, and chemical spills have contaminated fractured rock
aquifers in and around many industrial centers. The restoration and protection
of ground-water quality depend on knowledge of the physical, chemical,
and microbiological processes that affect the fate of these toxic chemicals
in fractured rock aquifers. The intent of this investigation is to help
develop the knowledge needed to create practical and cost-effective methods
to clean up and protect ground-water resources in fractured rock aquifers.
The NAWC Research Site, West Trenton, New Jersey, is located 4 miles north of
Trenton, NJ. The fractured bedrock at the site has been contaminated with
trichloroethylene (TCE)--a chlorinated solvent. The plume of TCE was caused
by leakage of TCE from aboveground service lines and storage tanks. The
TCE was used as a heat transfer agent during jet engine tests. An estimated
100,000 gallons of TCE was lost through leakage and spills at the site.
nonaqueous phase liquid (DNAPL) has not been identified directly at
the site, it is likely that liquid TCE has flowed vertically downward
and in the down-dip direction of the fractured sedimentary rocks. The
aqueous phase plume of dissolved TCE has flowed along the strike and the
up-dip directions of the sedimentary rocks. There is evidence of natural
attenuation of TCE, probably and at least in part due to the presence
of a jet-fuel oil spill that overlaps part of the plume.
|Detail of TCE pipes that were cut during remedial activities
at the NAWC Site. Through leakage and spills an estimated 100,000
gallons of TCE was lost
- Naval Air Warfare Center Research Site Home Page -- The NAWC research team maintains its own home page that contains additional
information about research at the site.
- Project Bibliography
- Photo Gallery
- Abstracts from Selected Meetings/Conferences
- Ground Water Flow and Transport in Fractured Rock -- Mirror Lake, New Hampshire
- Geophysical Research
- Continued Acquisition of Geophysical Logs for Characterization, 2004
- Integrated Borehole Geophysical Logging for Site Characterization, 2003
- Integrated Borehole Geophysical Logging for Characterization, 2002
- Borehole Radar Monitoring of a Steam-Injection Remediation Pilot Study, Loring Air Force Base, Limestone, Maine, 2004
- Borehole Radar Monitoring of a Steam-Injection Remediation Pilot Study, Loring Air Force Base, Limestone, Maine, 2003
- Radar and electrical-resistivity monitoring of landfill leachate, University of Connecticut landfill, Storrs, Connecticut
- For more information please contact
Daniel J. Goode (USGS, Pennsylvania District, Exton, PA) or
Claire Tiedeman (USGS, National Research Program, Menlo Park, CA)
- Integration of stable carbon isotope, microbial community, dissolved hydrogen gas, and 2HH2O tracer data to assess bioaugmentation for chlorinated ethene degradation in fractured rocks: Révész, K.M., Sherwood Lollar, B., Kirshtein, J.D., Tiedeman, C.R., Imbrigiotta, T.E., Goode, D.J., Shapiro, A.M., Voytek, M.A., Lacombe, P.J., and Busenberg, E., 2014, Journal of Contaminant Hydrology, v. 156, p. 62-77, doi:10.1016/j.jconhyd.2013.10.004.
- Permanganate diffusion and reaction in sedimentary rocks: Huang, Q., Dong, H., Towne, R.M., Fischer, T.B., and Schaefer, C.E., 2014, Journal of Contaminant Hydrology, v. 159, p. 36-46, doi:10.1016/j.jconhyd.2014.01.010.
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