L.A.'s Water Sources in 2025

Los Angeles receives water from several sources. The Los Angeles Aqueduct (LAA) supplied 44 percent of the water that was treated at the Los Angeles Aqueduct Filtration Plant. Purchased imported water from the Metropolitan Water District of Southern California (MWD) amounted to 52 percent. The remaining amount was sourced from local groundwater at 1 percent and recycled water at 3 percent.