CDPH Lead Inspector/Assessor California State Practice Exam

For single-family housing, how many XRF testing locations does HUD recommend?

1. At least two locations

2. One location per testing combination

3. Four locations on each wall

4. Minimum of three locations

The correct answer is: One location per testing combination

The recommendation from HUD for XRF testing in single-family housing emphasizes using one location per testing combination. This approach ensures that the analysis is comprehensive, targeting specific surfaces and combinations that might contain lead-based paint. By focusing on a singular location for each testing combination, inspectors can gather precise and relevant data regarding lead presence in various materials and layers, which is essential for determining the overall lead hazard risk. In this context, the option emphasizes a strategic and methodical assessment that aligns with best practices in lead inspection and risk assessment. It reflects an understanding of the need for thorough testing in targeted designs rather than a broad but potentially superficial assessment across multiple locations.