City of Claremont is a general law city located in Los Angeles County.

 

City of La Verne is a general law city located in Los Angeles County.

 

City of Pomona is a charter city in Los Angeles County.

 

City of Upland is a general law city in San Bernardino County.  It possesses a majority of the shares of stock in the San Antonio and West End Consolidated water companies.

 

Golden State Water Company is an investor-owned public utility incorporated under the laws of the State of California.

 

Pomona College is a California corporation with its principal place of business in Los Angeles County.

 

Pomona Valley Protective Association (PVPA) is a California corporation operating on a non-profit basis for the mutual benefit of its members.  Shareholders of the PVPA include: City of Pomona, Pomona College, San Antonio Water Company, Golden State Water Company, City of Upland, and West End Consolidated Water Company.  PVPA owns the primary spreading grounds and recharge facilities for the Six Basins.

 

San Antonio Water Company is a mutual water corporation incorporated under the laws of the State of California with its principal place of business in San Bernardino County.

 

Three Valleys Municipal Water District is a California municipal water district formed pursuant to the provisions of the municipal water district act and with the power to control, distribute, store, and spread water for beneficial purposes within its boundaries.