Abstract: The present invention relates to a method for treating groundwater in situ in rock or soil. An elongate permeable upgradient zone and an elongate permeable downgradient zone, each in hydraulic communication with a permeable subsurface treatment zone and having a major axis parallel to a non-zero component of the general flow direction, are provided in the subsurface by any of a number of construction methods. The upgradient zone, downgradient zone, and treatment zone are situated within the subsurface medium and have permeabilities substantially greater than the adjacent subsurface medium's permeability. Groundwater is allowed to move from the subsurface medium adjacent to the upgradient zone into the upgradient zone, where the groundwater refracts and moves to a treatment zone.

Abstract: The present invention relates to a method for treating groundwater in situ in rock or soil. An elongate permeable upgradient zone and an elongate permeable downgradient zone, each in hydraulic communication with a permeable subsurface treatment zone and having a major axis parallel to a non-zero component of the general flow direction, are provided in the subsurface by any of a number of construction methods. The upgradient zone, downgradient zone, and treatment zone are situated within the subsurface medium and have permeabilities substantially greater than the adjacent subsurface medium's permeability. Groundwater is allowed to move from the subsurface medium adjacent to the upgradient zone into the upgradient zone, where the groundwater refracts and moves to a treatment zone.