“…Most PMA municipalities draw water from three main physical water sources: the Colorado River, the Salt-Verde River system, and the large, interconnected groundwater aquifer underlying the metro area. However, while many municipalities have access to all three sources, some municipalities, typically newer ones on the outer edge of the metropolitan area, may not have access to SRP or CAP water (Rushforth et al, 2020). Of the many municipalities comprising metropolitan Phoenix, we include twelve in this study (Figure 1): Apache Junction, Avondale, Buckeye, Chandler, Gilbert, Glendale, Goodyear, Mesa, Peoria, Phoenix, Scottsdale, and Tempe.…”