CDPH Lead Inspector/Assessor California State Practice Exam

What is the purpose of a clearance sample in lead abatement?

1. To test soil contamination

2. To determine if lead levels are acceptable

3. To evaluate worker exposure

4. To analyze building materials

The correct answer is: To determine if lead levels are acceptable

The purpose of a clearance sample in lead abatement is to determine if lead levels are acceptable after the lead hazard abatement process has been completed. This is a critical step to ensure that the area where the work has been conducted is safe for re-occupancy. Clearance sampling involves collecting dust or other environmental samples and analyzing them for lead content to confirm that the lead levels are below specified thresholds. Achieving acceptable lead levels is essential for protecting public health, particularly for vulnerable populations such as children and pregnant women, who are more susceptible to lead exposure and its harmful effects. Testing soil contamination typically addresses pre-existing environmental conditions rather than assessing the efficacy of lead abatement efforts. Evaluating worker exposure is related to occupational safety during the abatement process, not after it has been completed. Analyzing building materials can be part of the assessment before abatement begins to identify sources of lead; however, it does not specifically relate to confirming that an abatement project has successfully reduced lead levels to safe amounts.