I live out in Southern California where we think a sprinkle is rain. Most people who have lived out here do not understand real rain or swollen rivers. There is a rumor that back in 1905 the San Diego River (For the past 106 years, essentially a creek) flooded from bank to bank (a half mile or more across.). Most of the young people here do not have a clue what could happen if we received a hundred year flood. San Diego Stadium (Where the Super Bowl has been played) would be out of sight under the water. Not only that, but thousands of apartments, business offices, Condos, my favorite restaurant and twenty hotels would all be gone. Yep, all of that new development was built on the 100 year flood plain.
Now, that is a perfect example of a lack of preparation for what happens in 100 year floods. When the waters rise in the midwest, the ground becomes saturated and seepage can go into basements. If the plant was designed for a 100 year flood, they have pumps in the basement that can easily handle the seepage. It looks like they are working. Thank God!