CDPH Lead Inspector/Assessor California State Practice Exam

For buildings greater than 2,000 square feet, how many additional floor dust samples are required for risk assessment?

1. One additional sample for each 1,000 ft2

2. One additional sample for each 2,000 ft2

3. Two additional samples for each 2,000 ft2

4. No additional samples needed

The correct answer is: One additional sample for each 2,000 ft2

In the context of risk assessment for lead hazards in buildings greater than 2,000 square feet, the correct approach is to collect one additional dust sample for each additional 2,000 square feet beyond the initial threshold. This methodology is established to ensure that the assessment accurately reflects potential lead exposure throughout larger areas of a building, which may have varying levels of lead dust accumulation. The rationale behind this requirement is based on the understanding that as the square footage increases, so does the potential for variability in lead dust distribution. By sampling at these specified increments, the risk assessor can obtain a more comprehensive view of exposure risks, which allows for more effective mitigation strategies if lead is identified. This systematic approach aims to establish appropriate guidelines for evaluating lead exposure risks in different environments, ensuring that larger structures are not overlooked in assessments simply due to size. The requirement helps maintain consistency and thoroughness in risk assessments across various types of residential and commercial properties.