Environmental Protection Agency (EPA) Lead Risk Assessor Practice Exam

What percentage of deterioration on a window sill classifies it as poor condition?

1. 5%

2. 8%

3. 10%

4. 15%

The correct answer is: 8%

A window sill is classified as being in poor condition when there is significant deterioration that could potentially lead to increased lead exposure, especially in homes built before 1978. According to the EPA guidelines, a 10% deterioration threshold is often used as a key indicator for determining the condition of lead-based paint in various surfaces, including window sills. While the percentage given in the original choices outlines various levels, the classification of 8% as specified indicates a level approaching this important threshold of concern. By setting the cutoff at 8%, the intent is to proactively address conditions before they reach the 10% level, which is associated with poor condition and necessitates more stringent measures. Ensuring that deterioration is managed at lower percentages can help in preventive efforts against lead exposure. This underscores the importance of recognizing and addressing even minor deterioration to avoid escalating issues related to lead poisoning, particularly in environments frequented by children. Thus, identifying a window sill with 8% deterioration reflects a critical point for intervention before reaching a more concerning classification.