Elk River Municipal Utilities (ERMU) strives to provide quality and cost-effective utility services to its customers. As a part of that mission, ERMU routinely tests for per- and polyfluoroalkyl substances (PFAS). ERMU has conducted PFAS testing in cooperation with the Minnesota Department of Health (MDH) in 2021 and 2025. We are pleased to report that all results showed no detection above MDH guidance levels. 

Monitoring and Testing 
Proactive testing protects the health of public water system customers and is the first step to reducing risk from PFAS exposure. As part of its mission, ERMU upholds standards with routine testing of our water quality to ensure services reflect the excellence, dependability, and expertise on which our customers rely.

The Minnesota Department of Health has been investigating the impacts of PFAS on groundwater since 2002 and conducts tests of community water systems. In 2021, the MDH began its Statewide PFAS Monitoring Project to evaluate whether PFAS levels across the state exceeded health guidelines. ERMU volunteered to participate in MDH’s 2021 PFAS testing. All sample results showed no detection above MDH guidance levels. 

In 2025, the MDH conducted another round of statewide PFAS sampling. Once again, all ERMU sample results showed no detection above guidance levels. According to the Minnesota Department of Health, a person who drinks water that is at or below the guidance levels would experience little or no risk for health effects.

ERMU will continue to work with MDH to monitor and report PFAS levels in the system as we remain committed to the health and safety of our community. Contact us to learn more about PFAS or our high-quality water standards.

Additional Resources

• Elk River Municipal Utilities Water Quality Reports
• Minnesota Department of Health - PFAS Information
• Centers for Disease Control and Prevention | Agency for Toxic Substances and Disease Registry (ATSDR)