Low permeability material definition
Low permeability material means subsurface material above bedrock, as defined in s. NR 141.05 (5), that is at or below the water table and has a hydraulic conductivity less than or equal to 1 x 10 –5 centimeters per second that has been determined as required in s. NR 746.05.
Low permeability material means a geological unit of unconsolidated material (usually clay or till) or bedrock (usually shale) that is all or partially saturated, and having permeability low enough (10-7 cm/sec) to give water in the aquifer artesian head.
Low permeability material means a geological unit of unconsolidated material (usually clay or