Antioch
Alamo
Berkeley
Bethel Island
Blackhawk
Brentwood
Byron
Castro Valley
Clayton
Concord
Danville
Cities Serviced
Discovery Bay
Hayward
Knightsen
Lafayette
Lathrop
Livermore
Manteca
Martinez
Moraga
Mountain House
Oakland
Orinda
Pittsburg
Pleasanton
Pleasant Hill
Rio Vista
San Ramon
Stockton
Tracey
Vallejo
Walnut Creek