As water stresses increase in Arizona, potable water reuse is poised to usher in a new era of water resilience

Arizona’s next era of water resilience will come from reuse, not rivers. After decades of drought and shrinking Colorado River allocations, the state’s growth now depends on bringing new, reliable supplies online. Meanwhile, contaminants such as PFAS, nitrates, arsenic, and legacy mining pollutants are further tightening the squeeze on wells and surface water. Together, these pressures are moving potable water reuse from a smart strategy to a statewide necessity.

In Arizona, both indirect and direct potable reuse are now on the table. Most past projects have centered on indirect potable reuse, or purifying treated wastewater and recharging it into aquifers or reservoirs before i

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