ARTICLE · 03 JULY 2026
The EPA has proposed the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6), requiring public water systems to collect data on 30 unregulated contaminants including certain PFAS from 2028 to 2030. Despite petitions from seven state governors and environmental groups, the agency declined to add microplastics to the monitoring list, citing the absence of validated testing methods, though microplastics remain on the draft Contaminant Candidate List 6 for potential future regulation.
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