What is the EPA hazardous waste level for lead in soil?

The correct answer is 5 parts per million (ppm) for lead in soil as it aligns with the Environmental Protection Agency's (EPA) established hazardous waste criteria. Lead is a heavy metal that poses significant health risks, especially to children and pregnant women. The EPA sets a threshold for lead in soil to identify when lead concentrations warrant concern regarding potential environmental contamination and human exposure.

At 5 ppm, the threshold reflects a level where action may be needed to mitigate health risks. This helps guide risk assessors and environmental professionals in determining when remediation efforts should be initiated to protect public health and the environment.