CDPH Lead Inspector/Assessor California State Practice Exam

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Prepare for the CDPH Lead Inspector/Assessor California State Exam. Study with flashcards and multiple-choice questions, each with hints and explanations. Ace your exam!

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A composite sample for wipe sampling can contain up to how many wipes?

Two wipes
Three wipes
Four wipes
Five wipes

The correct answer is: Four wipes

A composite sample for wipe sampling is designed to provide an average representation of lead concentrations across a particular area. In California's CDPH protocol, a composite sample can consist of a maximum of four wipes. This number is established to ensure that the sample is representative without causing variations that could skew results. By using multiple wipes, inspectors can account for potential inconsistencies in lead distribution on surfaces, thus enhancing the reliability of the lead assessment. Using fewer wipes would limit the sample's representativeness, while exceeding four could introduce unnecessary variables and potential contamination. Therefore, the standard guideline allows for up to four wipes to strike a balance between thoroughness and practicality in lead contamination assessments.