After three sets of dust samples have failed, what must an owner do?

When three sets of dust samples have failed, the correct action for the owner is to hire a licensed deleader. This is a critical step because the failure of multiple dust samples indicates that lead dust levels in the environment exceed acceptable limits, posing a health risk, particularly to vulnerable populations such as children and pregnant women.

A licensed deleader has the necessary training and qualifications to safely remediate lead hazards in accordance with state and federal regulations. This process typically involves methods such as cleaning, sealing, or even removing lead-based paint and contaminated materials, ensuring that the environment is safe for occupancy.

While thorough cleaning, conducting more dust sampling, and notifying local authorities might also be important components of addressing lead hazards, they do not replace the need for hiring a licensed professional who can deliver a comprehensive solution to eliminate the risks associated with lead exposure. Therefore, the responsibility falls on the property owner to ensure that the necessary remediation steps are taken through a qualified professional to safeguard health and comply with legal obligations related to lead hazard control.