§8911 Monitoring and Detection

Summary

The EPA Administrator must add certain PFAS chemicals to the fifth publication of the list of unregulated contaminants to be monitored under section 300j–4(a)(2)(B)(i) of title 42. The chemicals are perfluoroalkyl and polyfluoroalkyl substances and groups of those substances that the Administrator can measure in drinking water and that do not already have a national drinking water rule. Adding them does not count against the 30 contaminant limit for unregulated monitoring. Public water systems that serve more than 10,000 people must test for these PFAS. Systems serving between 3,300 and 10,000 people must test if funding is available and if lab capacity allows. For systems serving fewer than 3,300 people, only a representative sample must test, also subject to funding and lab capacity. If labs are too busy, the Administrator may waive the tests for the smaller systems. The Administrator must pay the reasonable cost of testing for the 3,300–10,000 group and the sampled small systems using funds made available under subsection (a)(2)(H) or subsection (j)(5) of section 300j–4 of title 42, or other funds provided for that purpose.