How long will it take for a non-reactive contaminant to travel a distance of 24 m if Darcy's flux is v = 6 cm/day. The porosity of the soil is 0 = 0.5 and the soil is saturated. Step 1. What is the velocity of the water? Uwater = Step 2. Calculate the time it will take for a non-reactive chemical to travel 24 m t = Uphenol = d Under the same conditions, how long will it take phenol to travel 24 m. The retardation factor for phenol in the soil is 1.8. The phenol is travelling at (give your answer to 5 significant figures): cm/d cm/d t= Calculate the time it will take for the phenol to travel 24 m d

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