Assertion: arsenic's potential | /r/CapableOf | clean up the contamination
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Source sentences:
text: The research objectives at these sites are to characterize the natural hydrologic, chemical, and microbial processes that control the dispersal and persistence of these chemicals in the subsurface; to evaluate the potential for natural processes to clean up the contamination; and to develop economical methods that can be used to clean up contamination at similar sites.