Contamination in Fractured Rock Aquifers
The Lockatong Formation, a cyclically deposited mudstone, is the host rock for the trychloroetylene (TCE) plume at the NAWC site. The formation is characterized by bedding-controlled fracturing as well as strata bound high-angle jointing -- from the Naval Air Warfare Center (NAWC) Research Site
Bibliography 282 Publications
Fractured-rock aquifers are widely distributed near land surface and
are highly susceptible to contamination from human activities. Researchers are developing an
improved understanding of the movement of water and contaminants in fractured-rock aquifers,
methods for characterization of field conditions, and modeling tools. Contaminant transport
and fate is fundamentally different in fractured rock than in unconsolidated (sand and
gravel) aquifers. Significantly more uncertainty exists as to the direction and rate of
contaminant migration, as well as the processes and factors that control chemical and
microbial transformations. At many contaminated sites across the Nation, remedial action is
delayed or stymied by the complexity of contaminated fractured-rock aquifers. Long-term
research on contamination in fractured-rock aquifers has been conducted at the
Program’s two field research sites:
Chlorinated Solvents in Fractured Sedimentary
Rock -- Naval Air Warfare Center (NAWC) Research Site, West Trenton, New Jersey
Multidisciplinary Characterization of
Contaminant Transport in Fractured Rock -- Mirror Lake, New Hampshire [Completed]
Other Program Fractured Rock Research
Program Headlines Related to Fractured Rock Research
- 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.
- Evaluation of known-boundary and resistivity constraints for improving cross-borehole DC electrical resistivity imaging of discrete fractures: Robinson, J., Johnson, T., and Slater, L., 2013, Geophysics, v. 78, no. 3, p. D115-D127, doi:10.1190/geo2012-0333.1.
- Abiotic dechlorination in rock matrices impacted by long-term exposure to tce: Schaefer, C.E., Towne, R.M., Lippincott, D.R., Lacombe, P.J., Bishop, M.E., and Dong, H., 2015, Chemosphere, v. 119, p. 744-749, doi:10.1016/j.chemosphere.2014.08.005.