Jeanette, water does not expire or go bad, so unless it was contaminated in some way or leaking it should be good.
I would recommend to get some sturdy containers and refill and clean on a regular basis. That way you can be more sure of your stocks. Do not use old milk jugs, the residue will contaminate your water if stored for a long period (not sure how long).
Les, you were in a bit before my time, but I was in Okinawa and Japan in early 70s as a dependent. The Tampa Bay area is full of retirees, and a lot of former SF. I know a great many people down there doing what your friends are doing.
Phaedrus, I have learned a great deal from this forum. The people are great, and it is one place in today's society where you can still have a disagreement and remain civil and objective. I hope I make a positive contribution. There is a lot of knowledge, experience and just good sense in this community.
Wildman is doing a very good thing to begin this thread every year. Reviewing your checklists and plans periodically is essential to being prepared. His checklist is also very good and can be used for just about any person in any scenario with adaptations for the individual and their situation. It is a good place to start.
While my location is affected by hurricanes, we are not likely to need to evacuate. My primary plan is to shelter in place, so we stock up. We also shelter friends who may be in a more vulnerable situation. My main activity is to check on others who are less able to take care of themselves to make sure they are stocked up beforehand, and that they are OK after. Kind of a roving prepping consultant for the elderly and disabled. This forum has been a great help in this function.