California has it all — mountains, beaches, deserts and forests. It also has earthquakes, storms, wildfires and power outages. Don’t let an emergency force you to go thirsty. Every resident in the Bay Area should have emergency water. Recovery of the public water system after an emergency may take much longer than a week. Your emergency supply should get you through the immediate aftermath so you can focus on other needs. You need at least two gallons per person per day for seven days minimum.…