Here's an article about the importance and scarcity of water for the survivors.

One danger I normally don't think about which is mentioned over and over in this disaster is salt water intrusion, whether into the municipal supply or even local well water. It makes stored water all the more precious, however, in this case, anything someone might have stored at home was swept away or crushed under a collapsed house. Was that ever an issue after Katrina or Sandy? I can't recall ever seeing that mentioned.

I realize that for millions of people, a three-hour round trip to gather water a day is routine (and primiarly a woman's job), for the people in the article who are forced to do it to get water, that's a heavy burden on top of all the other things they have to deal with now.