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

What is the best practice for dealing with lead-contaminated soil?

1. Leave as is

2. Remove all vegetation

3. Contain the soil

4. Add more topsoil

The correct answer is: Contain the soil

The best practice for dealing with lead-contaminated soil is to contain the soil. Containment involves strategies that prevent lead dust from becoming airborne, limit access to contaminated areas, and minimize exposure to individuals, particularly children. This can include capping the contaminated soil with clean fill, using landscaping features such as grass or planting to cover the soil, or installing barriers. By containing the soil, you effectively reduce the risk of lead exposure without the potential disruption that comes from excavation and removal of the contaminated soil, which can disturb the lead particles and increase the risk of exposure. Additionally, containment is often more practical and cost-effective than complete removal, especially in residential areas where soil disturbance can create further issues. Choosing this method reflects a comprehensive understanding of lead hazard management, focusing on risk reduction rather than permanent removal, which may not always be feasible or necessary.