There is not a real problem with cooling. There are just limits that are designed to keep the ecological footprint negligible. There is no real danger of cooling loss in any of these cases.
Wildfires are also not a real concern for these sites, because they do not stand in forests (the site stands on a so-called island made of concrete.).
And even if an accident could happen, Three Mile Island and more recently Fukushima have shown that containment works.