There are over 1000 sites on the National Priorities List, and thousands more that are not considered 'bad enough' to warrant NPL listing but are still contaminated. So my first thought was, "Superfund site? It better be seeping into someone's home causing a disaster to be of any interest here."

In any case, the link is to a discussion thread on problems with newly seeded lawn, and seems to have nothing to do with Superfund sites. I'm at a loss.