Environmental

A Nebraska property owner finds their drinking water has high arsenic levels. The most likely source in Nebraska is:

AIndustrial discharge
BNatural geological formations in the aquifer✓ Correct
CAgricultural pesticide application
DOld metal plumbing pipes

Explanation

Naturally occurring arsenic in groundwater from geological formations is a significant concern in parts of Nebraska. The EPA has set a maximum contaminant level of 10 ppb for arsenic in drinking water.

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