Today, Salt Lake City Department of Public Utilities (SLCDPU) announced test results from the latest round of a federal water quality sampling program called the Fifth Unregulated Contaminant Monitoring Rule (UCMR5). The UCMR5 requires water systems throughout the nation to test for 29 per-and poly-fluoroalkyl substances (PFAS) and for lithium. These compounds are not currently regulated under the federal Safe Drinking Water Act (SDWA). The results from this nationwide sampling effort will help the US Environmental Protection Agency (EPA) make decisions about developing future regulatory requirements for PFAS and lithium for the nation’s drinking water systems.