Arizona plans comprehensive PFAS treatment strategy with anticipated rulemaking timeline

The Sedona City Council meeting held on July 9, 2025, focused on critical discussions surrounding water quality and the regulatory framework for PFAS (per- and polyfluoroalkyl substances) treatment in wastewater. The meeting began with an overview of the permitting process required for PFAS treatment, which is expected to take approximately two to three years. This timeline includes a year of water quality sampling and testing, pilot-scale studies, and extensive permitting.

Council members discussed the anticipated rulemaking process for PFAS treatment, which is expected to commence within the year. The Arizona Department of Environmental Quality (ADEQ) has opened a docket for this rulemaking, which typically involves a public comment period and may take an additional one to two years to finalize. Following the establishment of rules, a compliance schedule will likely be implemented, similar to previous regulations for potable water, potentially extending the timeline for full compliance to around five years.

The conversation also touched on the federal involvement in PFAS regulation, with acknowledgment that while the federal government sets the initial framework, ADEQ serves as the regulatory body for Arizona. Concerns were raised about the potential for federal priorities to shift, which could impact the progress of PFAS regulations.

John Snickers from Arizona Water Company addressed the council, confirming that preparations for PFAS treatment will continue despite the rules not yet being finalized. He emphasized that the company is proceeding with its plans, anticipating timely updates and changes in the regulatory landscape.

In summary, the meeting highlighted the complexities and timelines associated with PFAS treatment regulations, underscoring the importance of proactive measures by local water authorities in response to evolving environmental standards. The council's discussions reflect a commitment to ensuring water quality and public health in Sedona.