CDPH Lead Inspector/Assessor California State Practice Exam

What should be done if a room equivalent has more than 4 walls in a single-family home?

1. Average the XRF readings and classify all walls as same as tested

2. Use the highest XRF reading for classification of walls

3. Ignore the additional walls in the assessment

4. Measure each wall individually and report all findings

The correct answer is: Average the XRF readings and classify all walls as same as tested

The correct action when a room equivalent has more than four walls in a single-family home is to average the XRF readings and classify all walls as the same as tested. This approach is grounded in standard practices for lead inspection, wherein results obtained through X-ray fluorescence (XRF) spectrometry provide insight into lead content on various surfaces. By averaging the readings, you account for potential variability in lead levels that may exist among the walls, thus establishing a more comprehensive understanding of the room's overall lead condition. This is critical in ensuring that all walls are appropriately evaluated for safety and compliance, particularly in environments where children or pregnant women may be present, as they are most vulnerable to lead exposure. Classifying all walls as the same as tested based on averaged readings ensures that the findings are representative of the entire area being assessed, rather than relying solely on single highest readings which may not accurately reflect the overall condition. This practice can help in creating a clearer picture for remediation efforts and assisting in compliance with health and safety regulations pertaining to lead exposure.