Question 5009 of 223 · California Water Treatment Operator Exam
Under the Lead and Copper Rule, the copper action level is
Exactly one answer is correct.
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Correct answer to question 5009
- B: 1.3 mg/L
Explanation
The copper action level is 1.3 mg/L and the lead action level is 0.015 mg/L at the 90th percentile.
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