South Bay Water


South Bay Water is headquartered at:

Sweetwater Authority
505 Garrett Avenue
Chula Vista, CA 91910
Phone: (619) 420-1413


South Bay Water (SBW) was formed as an independent California Special District in 1951 to represent local residents. Voter approval assured the move toward access to imported water from the San Diego County Water Authority (SDCWA), the County's water wholesaler. At that time, local water resources were inadequate to serve the needs of those living and working in the growing Sweetwater Valley.

In 1977, as a result of another public initiative, SBW and National City formed a joint powers public water agency, named Sweetwater Authority. Sweetwater Authority manages and operates the water system, providing water to National City, western portions of Chula Vista and Bonita, California. 

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