Question

Untreated sewage can lead to both surface water and groundwater​

Answer 1

Answer:

Along with pathogens and nutrients, untreated sewage can also have an important load of heavy metals that may seep into the groundwater system. The treated effluent from sewage treatment plants may also reach the aquifer if the effluent is infiltrated or discharged to local surface water bodies.

Explanation:

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Answer 2

Answer:

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