The Nestle Purina dry cat food recall does NOT involve food sold in California, but stay tuned just in case it expands.
ETA: Many people don't realize that half the concern about Salmonella contamination of dry pet food is due to the risk of it spreading to humans. Salmonellosis is a zoonosis (a disease spread from animals to humans) - in this case, the food is the device by which such spread is accomplished.
CDC has an excellent page that discusses how to minimize the risk of catching Salmonella from pet food.