CDPH Lead Inspector/Assessor California State Practice Exam

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Can a supervisor of an abatement job take a wipe sample to test for clearance?

Yes, it is valid for quantitative use
No, it is not permitted at any time
Yes, but it is an invalid sample
No, only air samples are accepted

The correct answer is: Yes, but it is an invalid sample

In lead abatement projects, the role of a supervisor does not typically include taking wipe samples for clearance testing. The correct understanding is that while a supervisor can certainly be involved in the abatement process, the integrity of clearance testing requires that it be conducted by an independent and qualified individual who is not part of the abatement team. This independence ensures that the results are unbiased and reliable. Wipe samples taken by a supervisor would not be considered valid for clearance due to the potential for a conflict of interest and the possibility that the supervisor may not follow standardized sampling protocols. Consequently, such samples would be deemed invalid in the context of regulatory requirements for lead clearance testing. Understanding this context helps reinforce the importance of having impartial personnel conduct clearance testing to ensure the safety and health standards are adequately met according to regulations.