Suppose a Well Has Become Contaminated by Harmful Bacteria Such

question 79

Multiple Choice

Suppose a well has become contaminated by harmful bacteria such as E.coli.How can this be removed from an aquifer by natural subsurface processes?

• A)asymptotic expansion
• B)dissolution, diagenesis, and fossilization
• C)mechanical filtration, chemical oxidation, or assimilation by other organisms
• D)overpumping for a few days until the well tests clean

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