Small town,large city,rural location after collapse of central government(and the creation of six new ones-along with who knows how many other independents)water,uncontaminated water would be at a premium. You want a Duh moment-did you notice everyone looks clean and showered. I would think safe water to drink would be hard enough,let alone water to shower with and on top of that clean clothes.Then again I like the show and maybe they all smell and we just don't hear about it-like on 24 where no one goes to the restroom but you assume that they do during parts that you don't see.Good clean fun.