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Example: Groundwater A brownfield is contaminated with pollutants including PCBs. The water table declines in the direction of groundwater flow by 8 meters per 1000 meters. The soil has a hydraulic conductivity of 4.9 x 10-5 m/s, a porosity of 0.28, and a solids density of 2.1 kg/L. One PCB has a Kd in m/s? this soil of 18 L/kg. How fast does this PCB travel in this groundwater, in

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