City undertakes wastewater capacity analysis anticipating future PFAS regulations

Sedona's City Council has taken significant steps towards ensuring the long-term sustainability of its wastewater management system. During a recent meeting on July 9, 2025, council members discussed a comprehensive capacity analysis aimed at preparing for future demands on the city's wastewater treatment facilities.

The analysis revealed that Sedona's current wastewater treatment plant has adequate capacity to handle projected peak flows, even as the city continues to grow. This includes considerations for future developments, such as the Western Gateway property and other vacant lots. However, the analysis also identified potential bottlenecks in the system, particularly between the tertiary filters and the new ultraviolet (UV) disinfection system. To address this, the council approved a $386,000 change order to enhance the UV system's capacity, which is already included in the fiscal year 2026 budget.

In addition to capacity concerns, the council is preparing for upcoming regulations regarding per- and polyfluoroalkyl substances (PFAS), commonly known as "forever chemicals." These substances pose environmental challenges, and the city is evaluating treatment options to ensure compliance with future standards.

The council also revisited its long-term effluent management plan, originally developed in 2013. Discussions included the possibility of using reclaimed water for irrigation in parks and schools or further treating wastewater to potable standards. These options are being explored to maximize resource efficiency and sustainability.

As Sedona continues to grow, the council emphasized the importance of proactive planning to accommodate new developments while maintaining environmental standards. The decisions made during this meeting are expected to have lasting impacts on the city's infrastructure and public health, ensuring that Sedona remains a vibrant and sustainable community for years to come.