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Another Prescott Valley Well Tests Positive For PFAS

The Town of Prescott Valley has taken an additional well out of service after it tested positive for Per- and Polyfluoroalkyl substances (PFAS). A year ago, in August of 2022, Prescott Valley shut down four of its 27 wells because of positive PFAS tests. The Town recently retested its operational wells and found that the additional well in the Quailwood area tested above the Environmental Protection Agency’s Draft Maximum Contaminant Level for PFAS. Quailwood wells number two and number three in east Prescott Valley were two of the original wells taken out of service. Quailwood well number-four is the most recent taken out of service, and an additional well is non-operational because of servicing. The remaining three wells in the area are sufficient to meet the needs of water customers, and the Town’s wells are interconnected so water can be moved from different areas to serve the affected community during repairs or shutdowns. The EPA has advised that exposure to high levels PFAS may be harmful to human health. The chemicals are commonly found in some grease-resistant paper such as in fast-food containers, pizza boxes, stain resistant coatings, water resistant clothing, some cleaning and personal care products, paint products, and aqueous firefighting foams. The Town of Prescott Valley is currently pursuing grant funding and technology options to remove the forever chemicals from the affected wells.