Lead Paint Testing vs. Risk Assessment in NYC: What's the Difference?
Lead paint testing and lead risk assessment are two different services that NYC property owners often confuse. In simple terms: testing tells you IF lead paint is present, while a risk assessment tells you if lead paint is CREATING a hazard. DeLead NYC recommends understanding both to make informed compliance decisions.
Lead paint testing uses an XRF (X-Ray Fluorescence) device to detect the presence and concentration of lead in paint on every surface. It answers one question: does this surface contain lead paint? An EPA-certified inspector tests each component — walls, windows, doors, trim — and provides a pass/fail report.
A lead risk assessment is more comprehensive. It evaluates not just whether lead paint exists, but whether it poses an active hazard. It includes: XRF testing of all surfaces, dust wipe sampling on floors and window sills, assessment of paint condition (intact vs. deteriorating), evaluation of bare soil in exterior play areas, and recommendations for hazard control.
XRF testing alone is sufficient for: Local Law 31 turnover compliance, annual cycle inspections, and pre-renovation testing. A full risk assessment is needed for: response to a child's elevated blood lead level, HPD-ordered investigations, and comprehensive building-wide hazard evaluation.
According to DeLead NYC: XRF testing costs $150-$300 per unit. A full lead risk assessment costs $400-$800 per unit. The risk assessment costs more because it includes dust sampling (lab fees) and more detailed reporting.
DeLead NYC recommends XRF testing for routine compliance — it's faster, cheaper, and satisfies most NYC requirements. A full risk assessment is better when you need comprehensive hazard documentation, such as after a child tests positive for lead or when purchasing a building. Learn more about lead paint inspection services.
Lead inspection = XRF of all painted components, identifies lead-based paint (presence/absence). Risk assessment = inspection PLUS dust wipes, soil samples, deterioration analysis, and a written hazard-control plan. Risk assessment is broader and required for some HUD/insurance programs.
Local Law 31 requires a lead-based paint inspection (XRF of all components) by an EPA-certified Inspector. Risk assessment is not required by LL31 but is often combined for occupied buildings or pre-purchase due diligence.