§8911 Monitoring and Detection

Summary

EPA must add certain perfluoroalkyl and polyfluoroalkyl substances (PFAS) to its fifth list of unregulated contaminants to be monitored. The PFAS to be listed are those that the EPA can measure with a validated drinking-water test and that are not already covered by a national drinking-water rule. Those PFAS will not count toward the 30-contaminant limit for monitoring. Public water systems that serve more than 10,000 people must test for these PFAS. Systems serving 3,300 to 10,000 people, and a representative sample of systems serving fewer than 3,300 people, must test if funds and lab capacity are available. The EPA may waive the smaller-system testing if labs can’t handle it. The EPA will pay the reasonable testing costs for the smaller systems using available drinking-water program funds or other funds.