Question 4012 of 229 · California Water Distribution Operator Exam
What is the federal lead action level?
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Correct answer to question 4012
- D: 0.015 mg/L at the 90th percentile of tap samples
Explanation
The action level is exceeded if more than 10 percent of tap samples are above 15 micrograms per liter. The copper action level is 1.3 mg/L.
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