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Contamination in Fractured Rock Aquifers

A diagram with two cross sections. The upper one is the results of a multichannel analysis of surface waves (MASW) measurements. The lower one is an interpreted geologic section, which shows a fault zone.
Results of a multichannel analysis of surface waves (MASW) measurement of a subsurface north-south trending cross section across a fault zone at the Naval Air Warfare Center (NAWC) research site in West Trenton, New Jersey. Below is the interpreted geologic section, which shows the fault zone, based on the MASW results (Modified version of Figure 3 from Ivanov and others, 2006) -- from the Naval Air Warfare Center (NAWC) Research Site

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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

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Page Last Modified: Thursday, 05-Jun-2014 12:06:13 EDT