This marks California American Water's ninth acquisition in the past five years, adding more than 13,000 new water and/or wastewater customers since 2020. SAN DIEGO, Calif., Dec. 9, 2025 /PRNewswire/ -- California American Water announced today that it has completed its acquisition of the Yerba Buena Water Company water system. The purchase of the system, which serves approximately 250 customers, was previously approved by the California Public Utilities Commission (CPUC) and reflects California American Wa ...