House committee substitute to the 1st edition makes the following changes. Amends the whereas clauses as follows. Removes the clause about the State Laboratory of Public Health having the capacity to measure lead accurately down to the level of 10 parts per billion. Amends a clause to state that lowering the definition of a lead hazard in young children's drinking water in the Childhood Lead Poisoning Prevention statute from 15 parts per billion to 10 parts per billion would extend lead exposure protection to 30,000 (was, to an additional 30,000) young children in child care settings. 

Adds that nothing in the act, or the rules adopted under Section 3 of the act, alter or amend the requirements applicable to public water systems under: (1) Article 10 (North Carolina Drinking Water Act) of GS Chapter 130A and related adopted rules; (2) the federal Safe Drinking Water Act; and (3) the EPA's Lead and Copper Rule.