Question 4013 of 229 · California Water Distribution Operator Exam
What is the federal action level for copper at the tap?
Exactly one answer is correct.
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Correct answer to question 4013
- C: 1.3 mg/L
Explanation
Copper has an action level of 1.3 mg/L at the 90th percentile. Confusing it with the lead value of 0.015 mg/L is a common mistake.
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