Three San Diego County projects to improve water supply reliability received a total of $500,000 in grant funding from the Metropolitan Water District of Southern California, the San Diego County Water Authority announced Monday. The county received funding for new seawater intake screens at the Claude “Bud” Lewis Carlsbad Desalination Plant, brackish water optimization and integrated planning in the San Dieguito River watershed and new water treatment technology at the East County Advanced Water Treatment Project.