“Everything flows downgradient” – a misleading statement about ground water flow

Ground water almost never moves uniformly through the subsurface. To the disappointment of most hydrogeologists and engineers, ground water almost always flows along preferential paths. If one doesn’t know these flow paths, serious consequences and costly planning errors may result. To prevent this from happening, Nano Trace TechnologiesTM utilizes the cost-effective background fluorescence analysis (BFA) technique. The BFA allows us to understand preferential ground water flow. Numerous projects with long and challenging clean-up histories have been advanced using this technique.