Dense Nonaqueous Phase Liquid Tracer Tests: Experimental Results |
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| Authors: | Ronald A Burt Gregory L Christians Samuel P Williams David J Wilson |
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| Institution: | (1) Eckenfelder/Brown and Caldwell, 501 Great Circle Road, Suite 150, Nashville, Tennessee, U.S.A.;(2) Eckenfelder/Brown and Caldwell, 501 Great Circle Road, Suite 150, Nashville, Tennessee, U.S.A. |
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| Abstract: | Two dense nonaqueous phase liquid (DNAPL) tracer tests werecarried out in a shallow aquifer north of Fort Worth, TX. i-Propanolwas used as the nonpartitioning tracer; n-hexanol and n-octanol werethe partitioning tracers. Field data, mathematical modeling, theresults of column tests, and field tracer tests with NaCl were usedin designing the DNAPL tracer tests. The results indicated the presenceof DNAPL at both sites tested; semi-quantitative estimates of theamounts of DNAPL present were obtained by mathematical modeling.Interpretation was complicated by heterogeneity of the aquifer andmass transport effects. |
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| Keywords: | dense nonaqueous phase liquids groundwater contamination partitioning tracers |
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