Which option correctly states the soil clearance value for non-contact areas?

Which option correctly states the soil clearance value for non-contact areas?

• A. Contact areas 400
• B. None specified
• C. Both 800
• D. Non-contact areas 1200

Answer: (D)

Soil clearance values after lead-based paint work are different depending on how people interact with the soil. Areas where people, especially children, are likely to directly touch or ingest soil (play areas or contact zones) have a stricter limit because exposure risk is higher there. For these areas, the standard is 400 mg/kg (ppm). In contrast, non-contact outdoor areas, where direct soil contact is unlikely, have a higher allowable level since the exposure risk is lower. The corresponding clearance value for those non-contact areas is 1,200 mg/kg (ppm). That’s why the correct choice states non-contact areas 1200. The other options don’t fit because they either assign the stricter 400 value to non-contact areas, suggest no specified value, or propose a value (800) that isn’t part of the official EPA clearance levels.

Soil clearance values after lead-based paint work are different depending on how people interact with the soil. Areas where people, especially children, are likely to directly touch or ingest soil (play areas or contact zones) have a stricter limit because exposure risk is higher there. For these areas, the standard is 400 mg/kg (ppm). In contrast, non-contact outdoor areas, where direct soil contact is unlikely, have a higher allowable level since the exposure risk is lower. The corresponding clearance value for those non-contact areas is 1,200 mg/kg (ppm). That’s why the correct choice states non-contact areas 1200. The other options don’t fit because they either assign the stricter 400 value to non-contact areas, suggest no specified value, or propose a value (800) that isn’t part of the official EPA clearance levels.