Question 4010 of 229 · California Water Distribution Operator Exam
After a routine total coliform positive sample, how many repeat samples are generally collected under the revised total coliform rule?
Exactly one answer is correct.
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Correct answer to question 4010
- A: At least 3 repeat samples within 24 hours of notification
Explanation
If a routine sample is total coliform positive, the system must collect a set of at least three repeat samples within 24 hours of being notified of the result (40 CFR 141.858(a)(1); 22 CCR 64424).
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