OH HB512

Establishes comprehensive lead and copper testing requirements for community and nontransient noncommunity water systems, with the director of environmental protection adopting rules within 120 days requiring sampling, corrosion control studies, and public notification procedures

Revises "lead free" standards for plumbing materials to use weighted average lead content calculations (maximum 0.25% for wetted surfaces of pipes and fixtures, maximum 0.2% for solder and flux) and prohibits use of non-lead-free materials in public water systems and residential/nonresidential facilities

Requires water system operators to identify and map areas containing lead service lines within six months and notify residents of lead contamination; establishes tiered administrative penalties ranging from $25-$1,000 per day for failure to provide required notices

Creates financial assistance from the Drinking Water Assistance Fund for community water systems and nontransient noncommunity water systems to support lead service line mapping, corrosion control compliance, and fountain/fixture replacement, with additional support for schools and child day-care centers

Modifies the Water Pollution Control Loan Fund and Ohio Water Development Authority provisions to extend debt obligation repayment periods up to 45 years for certain wastewater projects and clarifies administrative cost limitations