California Water Service Company: Customer Assistance Program (CAP) - Cal Water

California-American Water Company: Customer Assistance Programs (amwater.com)

Golden State Water Company: Customer Assistance Program - (gswater.com)

Great Oaks Water Company: 

Application for Customer Assistance Program (CAP) (greatoakswater.com)

Liberty Utilities (Apple Valley Ranchos Water Company): water-financial-help (libertyutilities.com)

Liberty Utilities (Park Water Company): Water Financial Help (libertyutilities.com)

San Gabriel Valley Water Company: 

California Alternative Rates For Water (CARW) - (sgvwater.com)

San Jose Water Company: Water Rate Assistance Program | San Jose Water (sjwater.com)

Suburban Water Systems: WISH / LIRA - SouthWest Water Company (swwc.com)