Consider a tanker truck that crashes, ruptures, and spills a suite of contaminan
ID: 77532 • Letter: C
Question
Consider a tanker truck that crashes, ruptures, and spills a suite of contaminant into an underlying aquifer. The aquifer has a dry bulk density of 1.0 g/cc, a porosity of 40%, an isotropic hydraulic conductivity of 10^-3 m/s, a weight fraction of organic carbon of 0.03 (3%), and a thickness of 20m. The regional head gradient is 0.01. The spill included the following contaminents:
Hexachlorobenzene
Hexachloroethane
trichloroethene
chloroethane
cyclohexanol
1) What is the concentration of each contaminant at saturation?
2) After 1000 days, how far has the solute front (center of mass) for each contaminant traveled? Assume groundwater flow is only in one direction, directly down-gradient of the spill.
Explanation / Answer
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