A problem with having to bring toxic materials to the surface to cleanse them is _____.
Question 2 options:
A: Where to dispose of the toxic materials
B: Where to do the bioremediation on the toxic materials
C: How to re-inject the cleansed rock and soil back into the aquifer
D: None of these
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How to re inject the cleansed rock and soil back into the aquifer
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Where to do the bioremediation on the toxic materials
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