Water Authority plans 1.8 MGD Advanced Water Purification facility at wastewater plant

During the recent Sedona City Council meeting on July 9, 2025, discussions centered around the city's water management strategies, particularly focusing on the potential implementation of an Advanced Water Purification (AWP) system. This topic is crucial as Sedona faces increasing demands for potable water, necessitating innovative solutions to ensure sustainable water supply.

The council reviewed various flow scenarios for the proposed AWP system, starting with the current flow of 0.9 million gallons per day (MGD) and considering future increases up to 1.8 MGD. The discussions highlighted that if the city were to fully transition to AWP, it could potentially abandon existing recharge wells, which are currently used for water replenishment. However, there was an acknowledgment that these wells could still serve as backup resources.

Financial implications were a significant part of the conversation. The estimated capital costs for implementing the AWP system range from approximately $132.2 million for the initial phase to about $161.1 million for the full-scale facility. These figures include a 30% contingency for unforeseen expenses, as well as costs associated with engineering, design, and permitting. Additionally, the operational and maintenance costs for the AWP system are projected to be between $2.8 million and $4.5 million annually, covering staffing, training, and necessary certifications.

The council's discussions also suggested a shift away from relying on recharge wells and reclaimed water delivery systems, indicating a strategic pivot towards a more centralized water purification approach. This recommendation reflects a broader trend in water management, where cities are increasingly looking to advanced technologies to meet growing water demands.

In conclusion, the Sedona City Council's deliberations on the AWP system underscore the city's proactive stance in addressing water supply challenges. As the council moves forward with these plans, the community can expect further discussions on the implications of these changes, including environmental impacts and long-term sustainability. The next steps will likely involve detailed planning and community engagement to ensure that the proposed solutions align with the needs and values of Sedona residents.