Regulatory Limits of Lead

Section 845.205  Regulatory Limits of Lead a)         The regulatory limit of lead in any lead-bearing substance on an interior or exterior surface of a regulated facility shall be 0.5% lead by weight (calculated as lead metal) in the total non-volatile content of liquid paint, or ≥ 1.0 mg/cm 2 in the dried film of paint. b)         The regulatory limit of lead in bare soil that is readily accessible to children shall be 400 µg/g (or parts per million or ppm).  The regulatory limit of lead in other bare soil areas shall be 1000 µg/g. c)         The regulatory limit of lead in dust shall be: 1)         10 µg/ft 2 on all interior  floors and stair treads; 2)         40 µg/ft 2 on all exterior porch floors; and 3)         100 µg/ft 2 on all other horizontal surfaces. d)         The regulatory limit of lead in drinking water shall be 5 µg/L (or parts per billion or ppb). e)         Storage of any lead-containing or lead-contaminated article in an area accessible to children shall be prohibited. This includes automotive or marine batteries, battery casings or battery casing liners; scrap lead or lead solder; internal combustion engine parts; print or print faces; pottery glaze or pottery glaze containers; bullets or spent cartridges; or any other article containing or contaminated by lead.