Requires certain residential property owners, schools, and child care centers to test drinking water for lead every three years.

This bill requires owners of older residential buildings (constructed before 1987 with three or more units), schools, and child care centers to test drinking water for lead every three years. Testing must be done by a certified lab, with results posted online and provided to tenants, parents, or staff. If lead levels exceed EPA standards, owners must notify local health agencies, municipal leaders, and affected individuals in writing. The law applies immediately and exempts properties already covered by prior testing requirements.