I was curious about the "US Thermal Power Plant Water Use By County" graph which has a very dark square in the SE corner of NC. It's Brunswick County. I guess it's due to the Brunswick Nuclear Generating Station:

https://en.wikipedia.org/wiki/Brunswick_Nuclear_Generating_S...

The water supply in Brunswick County is terribly polluted by PFAS (courtesy of DuPont, not the power plant):

https://www.nrdc.org/stories/drinking-water-crisis-north-car...