Environmental
A Mississippi property owner discovers their well water has elevated levels of naturally occurring arsenic. The primary regulatory program addressing arsenic in drinking water is:
ACERCLA (Superfund)
BThe Safe Drinking Water Act (SDWA), which sets the Maximum Contaminant Level (MCL) for arsenic in public water systems✓ Correct
CThe Clean Water Act
DRCRA
Explanation
The Safe Drinking Water Act regulates contaminants in public water systems, including arsenic (MCL = 0.010 mg/L). However, private wells are not subject to SDWA but are regulated by state laws. Mississippi property owners with private wells should test for arsenic and treat if levels exceed health standards.
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