CDPH Lead Inspector/Assessor California State Practice Exam

When assessing window dust samples in larger buildings, how many additional samples are required for each increment of 2,000 square feet?

1. No additional samples

2. 1 additional sample

3. 2 additional samples

4. 3 additional samples

The correct answer is: 1 additional sample

In larger buildings, when assessing window dust samples, the requirement is to collect additional samples beyond the initial ones to accurately represent the lead dust levels present throughout the various areas of the building. The practice guidelines stipulate that for every increment of 2,000 square feet of floor area, one additional sample should be collected. This ensures that the lead risk assessment is comprehensive and reflective of the conditions throughout the building, considering that larger areas may have varying levels of lead exposure due to factors like building materials, wear and tear, and the specific use of the spaces. Collecting one additional sample for each increment allows the assessor to gather sufficient data to evaluate the presence of lead dust in a systematic manner, thus supporting better decision-making for remediation and health protection measures. This approach aligns with common practices in environmental assessments where a more extensive sampling strategy is crucial in larger or more complex properties.