… The 2025 Southern California Community Water Systems Atlas, produced by the UCLA Luskin Center for Innovation and UC Division of Agriculture and Natural Resources, shows how fragmented governance affects communities differently. The atlas expands the scope of earlier UCLA studies to cover not just Los Angeles County, but 663 systems across six counties: Los Angeles, Kern, Orange, Riverside, San Bernardino and Ventura. … The report and companion mapping tool provide the most comprehensive public resource on water systems, shedding light on disparities in water quality, affordability, governance and climate resilience.

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