Environmental Protection Agency (EPA) Model Lead Based Paint Risk Assessor Practice Test

What is the recommended action if soil lead levels exceed 5,000 ppm in a play area?

1. Remove soil entirely

2. Contain soil under concrete or asphalt

3. Leave it as is

4. Cover with grass

The correct answer is: Contain soil under concrete or asphalt

When soil lead levels exceed 5,000 parts per million (ppm) in a play area, the recommended action is to contain the soil under concrete or asphalt. This approach effectively mitigates direct exposure to lead-contaminated soil, particularly in areas where children play. By encapsulating the contaminated soil, concrete or asphalt serves as a barrier that minimizes the risks of lead dust exposure and ingestion. Containment is essential because it allows for the continued use of the play area while addressing the potential hazards posed by lead contamination. This option aligns with best practices for environmental health and safety, as it reduces the likelihood of children coming into contact with lead-laden soil without the complete removal of the material, which can be costly and disruptive. Other options may not effectively manage lead exposure risks. Complete soil removal can lead to other environmental issues, while simply covering the contaminated area with grass does not provide a permanent solution and might still allow for lead exposure through dust or contact.