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Geochemical and Microbiological Processes that Affect Migration and Natural Attenuation of Chlorinated Solvents in Fractured-Sedimentary Rock — Naval Air Warfare Center (NAWC) Research Site, West Trenton, NJ
HeadlinesUSGS scientists will update research progress through several presentations at the National Groundwater Association (NGWA) Conference on Groundwater in Fractured Rock, September 28-29, 2015 in Burlington, Vermont. Project scientist Paul Hsieh will present the conference keynote address: "Flow and Transport in Fractured Rocks — Retrospective and Look Ahead."
In 2001, the USGS Toxic Substances Hydrology Program initiated research at the NAWC to complement and expand the research being conducted on groundwater flow and contaminant transport in fractured bedrock at its Mirror Lake, New Hampshire Research Site. The NAWC site was chosen because the general hydrogeologic framework was well defined and the site contained extensive contamination over a range of geochemical conditions. Site groundwater contains volatile organic compounds (VOC's) that include trichloroethene (TCE), cis-1,2-dichloroethene (cisDCE), and vinyl chloride.
Our research objectives are improved understanding of the physical, chemical, and microbial processes that affect the transport and fate of chlorinated solvents in fractured-sedimentary-rock aquifers, including the role of dense non-aqueous phase liquids (DNAPL) as a long-term source. We are also developing methods for cost-effective subsurface characterization.
Research at the site is a multidisciplinary, collaborative effort that presently involves scientists from the USGS, U.S. Navy, and several academic and private institutions.