Phoenix mostly doesn't drink Colorado River water
5 hours ago
- #Environmental Policy
- #Water Management
- #Urban Development
- Phoenix's water is primarily sourced from the Salt and Verde Rivers (60%), supplemented by Colorado River water (40%), with minimal groundwater.
- The city's water system is resilient due to early investments and conservation, unlike the over-allocated Colorado River.
- Water rights under prior appropriation in Arizona tie water to land, reducing usage as farms urbanize but preventing redistribution.
- Recent groundwater restrictions halt new subdivisions relying solely on cheap wells, shifting costs to more expensive surface water.
- Development pressure challenges water stewardship, with legal battles over groundwater access and Ag-to-Urban transfer programs.
- Historical water injustices include delayed recognition of Indigenous claims, now partially resolved with water returns to the Gila River.
- Agricultural water use in Arizona is high (72%) but economically marginal, highlighting inefficiencies in water allocation.
- Phoenix invests in drought infrastructure, like the Drought Pipeline, to secure water, but costs rise as cheap water diminishes.
- Public perception often misdirects focus to Colorado River shortages, while local water systems face affordability crises.
- Urban expansion sorts water risk to newer, outer communities, creating disparities in water security and cost.