API Bull 24 pdf download Downward Solute Plume Migration: Assessment, Significance, and Implications for Characterization and Monitoring of “Diving Plumes” The factors that control groundwater flow direction (and therefore, any resulting plume dive) are largelyindependent of the solutes comprising a dissolved-phase plume. This paper discusses the downward migration of dissolved-phase plumes as a result of geologic, hydraulic, andor biogeochemical factors...