TSCA Prioritization Renews Debate Over PVC As Lead-Pipe Replacement

EPA’s proposed designation of vinyl chloride as “high-priority” for evaluation and regulation under TSCA is reigniting debate over the safety of polyvinyl chloride (PVC) pipes in drinking water systems as the agency prepares to implement its separate rule requiring replacement of nearly all lead service lines (LSLs) nationwide. Industry and environmental groups’ comments on the Toxic Substances Control Act (TSCA) prioritization proposal for vinyl chloride and four other chemicals not only weighed in on EPA’s justification for targeting the candidates...