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

Soil samples need not be collected if the area is:

1. Completely barren

2. Marked for demolition

3. Completely covered by grass or pavement

4. Heavily trafficked

The correct answer is: Completely covered by grass or pavement

Soil samples do not need to be collected if the area is completely covered by grass or pavement because these surfaces act as a barrier, preventing the exposure of soil to the environment where lead dust and particulate can settle and accumulate. When an area is fully covered with vegetation or impervious surfaces, such as pavement, there is significantly less likelihood of lead from lead-based paint or other sources being present in the soil. This reduces the risk of human exposure to possible lead contamination that might typically occur in bare soil environments. In contrast, areas that are barren or heavily trafficked may have higher risks of lead exposure, as soil may be disturbed and lead could be more easily accessible. Similarly, even when an area is marked for demolition, future soil disturbance could lead to exposure risks, necessitating soil sampling to ensure safety before any construction begins.