Water Treatment Operator Class IV Practice Questions - ABC WPI Water Treatment Operator Class IV Certification Exam

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Under the EPA's April 2024 final PFAS National Primary Drinking Water Regulation, what is the Maximum Contaminant Level (MCL) for both PFOA and PFOS?

4 nanograms per liter (ng/L) 10 nanograms per liter (ng/L) 40 nanograms per liter (ng/L) 70 nanograms per liter (ng/L)

Correct Answer:

4 nanograms per liter (ng/L)

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