Current through Register Vol. 48, No. 48, May 28, 2024
Part 4761.2510 - STANDARDS FOR LEAD IN PAINT, DUST, BARE SOIL, DRINKING WATERSubpart 1.Paint.Paint is lead-based if it:
A. contains lead in a concentration of at least one-half of one percent (5,000 parts per million) or more by dry weight as measured by atomic absorption spectrophotometry or by quantitative chemical analyses; orB. registers at least one milligram of lead per square centimeter or more as measured by an x-ray fluorescence analyzer, unless atomic absorption spectrophotometry or quantitative chemical analyses shows that the lead content is less than one-half of one percent by dry weight.Subp. 2.Dust.Dust is lead-contaminated if atomic absorption spectrophotometry or quantitative chemical analyses determines that it contains at least:
A. ten micrograms of lead per square foot on an interior hard-surfaced floor or carpet;B. 100 micrograms of lead per square foot on an interior window sill; orC. 400 micrograms of lead per square foot in a window trough.Subp. 3.Bare soil.Bare soil on an affected property or on a play area is lead-contaminated if it contains lead in a concentration of at least 1/100 of one percent (100 parts per million) by weight.
Subp. 4.Drinking water.Drinking water is lead-contaminated if it contains at least 15 micrograms of lead per liter of water.
Statutory Authority: MS s 144.9508