ABSTRACT
Based on low well yields, on the homogeneous zone of influence, and on the excellent fit of drawdown data to theoretical, diffuse aquifer solutions, constant-rate pumping tests conducted in the Ste. Genevieve and St. Louis limestones indicate that diffuse flow predominates over turbulent, conduit flow at an industrial site in southwestern Kentucky. Groundwater was recovered at a rate of 8.2 × 10−2 1/sec (1.3 gpm) while Dense Non-Aqueous Phase Liquids (DNAPLs) were recovered at a rate of 1.5 × 10−3 1/sec (35 gpd). The flow rate employed was sufficient to create hydraulic controll for the site. Physical calculations indicate that DNAPLs could have penetrated the pore network without needing to posit the occurrence of conduit flow.
