1990•OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Requires access
Work plan for the preliminary assessment and characterization of dense nonaqueous-phase liquids in the Bear Creek Burial Grounds Hazardous Waste Disposal Unit at the Oak Ridge Y-12 Plant
Christoph Haase, H.L. King
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Abstract
On January 5, 1990, accumulations of dense, nonaqueous-phase liquids (DNAPLs) were discovered at depths of approximately 274 ft below ground surface along the southern border of Burial Ground A-South within the Bear Creek Burial Grounds Hazardous Waste Disposal Unit at the Y-12 plant. Subsequent to this discovery, a preliminary investigation was conducted to obtain information on the mode of occurrence and distribution of the DNAPLs and to obtain expert technical advice on DNAPL behavior in fractured rock, such as that underlying the Bear Creek Burial Grounds. The investigation included installation and sampling of two additional groundwater monitoring wells, resampling of existing wells in the vicinity of the discovery well, evaluation of existing groundwater quality data, and technical review of available information and site conditions by an independent consultant expert in the behavior of DNAPLs. Results of this investigation are summarized.