San Diego County Water Authority Share: Water Agency San Diego County Water Authority Visit Website Request Info 4677 Overland Avenue San Diego, CA 92123 (858) 522-6600 (858) 268-7841 (fax) Rep Info Map Whom to Contact Christine Antoine Phone: (858) 522-6766 Send an Email Kimberlyn Velasquez Phone: (858) 522-6722 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.