From American Partisan: GETTING WATER FROM A WELL WITHOUT ELECTRICITY
If you live out in the country, your water likely comes from a well and your well pump only works if you have electricity. So if the power goes out and you don't have a way to run the pump...no water. There are other alternatives but what is described here is a good, low tech way to get water in a pump. We are going to check it out and build one of our own.