Feasibility of Using 36 C1 to Depict Water Infiltration at the Pit 7 Complex, LLNL Site 300

Nimz, G J

Lawrence Livermore National Laboratory

关键词: Origin;    Lawrence Livermore National Laboratory;    Chlorides;    Hydrology;    Tritium;   

DOI  :  10.2172/15013386
RP-ID  :  UCRL-ID-146920
RP-ID  :  W-7405-ENG-48
RP-ID  :  15013386

美国|英语

来源: UNT Digital Library

【 摘 要 】

Measurements of bomb-pulse {sup 36}Cl and chloride concentrations in soils from the Pit 7 Complex basin, LLNL Site 300, combined with a demonstration model of moisture flux and infiltration rate, indicate that the bomb-pulse can be an extremely useful tool for the characterization of the unsaturated hydrology at Site 300. Bomb-pulse {sup 36}Cl is readily identifiable in the soil column, and exhibits moisture infiltration-related variations at different locations. It can be used to calibrate chloride accumulation models of unsaturated flow. In the continuing investigation of the origin and development of the Pit 7 Complex tritium plume, bomb-pulse {sup 36}Cl will provide a useful mechanism for hydrologic characterization.