A.
An environmental investigation must be conducted for every documented case of an elevated blood lead level among children six years of age and under and pregnant women. This investigation must document all lead health hazards which may be contributing to an elevated blood lead level.
B.
Sources of lead health hazards include:
(1)
Lead on any flaking, peeling, nonintact deteriorated surface or on any exposed surface or in any soil or dust found in or about the dwelling or in any rugs, carpet or other surface coverings in or about the dwelling containing a quantity of lead in excess of 1.0 milligrams of lead per square Centimeter (1.0 mg/cm2) when tested by a radioisotope X-ray fluorescence analyzer (XRF) or more than 0.5% lead by weight when tested by a certified laboratory; or
(2)
Lead in drinking water, as determined when no other sources of lead have been identified, and lead water pipes or lead solder have been identified inside the structure, and the presence of lead has been detected in a water sample at levels determined to be actionable in accordance with the Pennsylvania Department of Environmental Protection's Lead and Copper Rule.
C.
Lead health hazards may exist in the following locations:
(1)
Inside or on the exterior of a dwelling in which the affected person commonly resides or visits;
(2)
Inside or on the exterior of a structure containing a child-care facility in which the affected person commonly visits; or
(3)
On a structure in proximity to a dwelling or structure in which the affected person commonly resides or visits.