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DEPARTMENT <br />OF HEALTH <br />DATE: 8/21/23 <br />TO: Elk River <br />FROM: Steve Robertson <br />Supervisor, Source Water Protection Unit <br />SUBJECT: Statewide Perfluoroalkyl Substances (PFAS) Monitoring Project <br />Below please find your system's sampling results for the Statewide PFAS Monitoring Project. <br />Sampling was conducted on 11/14/21. <br />Sampling results <br />PFAS contaminant detected <br />Maximum <br />concentration (µg/L)1 <br />PFBA 0.0014 <br />MDH health value <br />(µg/L) <br />All sampling results were below the available health -based guidance values for PFAS. A person <br />drinking water at or below the guidance value would have little or no risk for health effects. <br />Next Steps <br />Since PFAS sampling is not required by the EPA, you are not required to include these results in <br />your consumer confidence report (CCR). However, MDH recommends that you include them in <br />your next CCR and can provide resources to help you give context about what these results <br />mean. <br />About the project <br />Minnesota Department of Health (MDH) has been studying the potential health impacts of <br />PFAS in groundwater in Minnesota since 2002. This project is part of a larger effort at MDH to <br />sample all community water systems (CWSs) for PFAS. MDH aims to cover 90% of CWS <br />customers under its PFAS monitoring program by 2025. The project has been made possible <br />through funding from the Clean Water Fund and U.S. Environmental Protection Agency. <br />Sampling results from all systems that participated in the study will be included in an interactive <br />mapping application on the MDH website. MDH will also be providing these results to the <br />Minnesota Pollution Control Agency to make them aware of the contamination. <br />1 One microgram per liter is the same as one part per billion (ppb). <br />128 <br />