ADVANCED WATER PURIFICATION PROGRAM - TRES RIOS

In October 2023, City ’s Mayor and Council adopted the One Water 2100 Plan (Plan). The Plan is Tucson’s comprehensive, long-range plan that aims to protect the reliability and quality of Tucson’s water supply through 2100. It recognizes the interconnectedness of our surface water, groundwater, recycled water, and stormwater supplies and plans for a future where the region’s water supply portfolio is increasingly diversified, and water demands are well managed . One of the strategies identified by stakeholders was to begin purifying recycled water to drinking water standards . The City has an agreement with the Bureau of Reclamation to build an advanced water purification facility in return for foregoing some of its Colorado River allocation that will help Tucson Water reduce reliance on surface and groundwater and maximize the use of local water resources .

By selecting the PDB delivery method for this Project, the City is committed to working in close collaboration with the selected Design-Builder during Phase 1 to develop a design that achieves the City’s objectives at a mutually agreeable guaranteed maximum price (GMP) , schedule, and scope for the Phase 2 delivery of the Project. The City expects the Design-Builder to construct the Project, as designed, within the agreed-upon price and schedule, through commissioning , startup , performance testing and Project closeout . Commencing in the Phase 1 services period and continuing throughout Phase 2 of the Project, the City further expects the Design-Builder to work with the Operator to help ensure a seamless transition and efficient operations of the AWPF moving forward. The following Project-specific objectives are provided to give Offeror s a better understanding of the Project and the work to be performed.

• Complete the design-build of an AWPF capable of producing 2.5 MGD of potable water with direct conveyance to the potable distribution system.

• Integrate the facility to receive effluent from the WRF as influent to the AWPF with product water from the AWPF in direct conveyance to the potable distribution system.

• Achieve both Substantial Completion and Final Completion of the Project by June 1, 2031.

• Efficient use of the provided Bureau of Reclamation funding .

• Integration of the P roject team (Designer, Builder, Operator, Owner) in a collaborative method to optimize P roject delivery and make informed cost and risk decisions with a life-cycle cost focus .

• Establish a baseline model for future implementation of AWPFs in the Tucson Water network.