The links below connect to pages with alphabetical lists of Superfund sites in each state; those lists in turn contain links to EPA information on the sites. Sometimes I've summarized additional information about the location of sites, relevant chemicals, and other details.
In early 2016 I yet again fixed 1,757 broken EPA links to site profiles that appeared on their website. As is their habit, EPA moved all of those pages within a few months, leaving me with 1,757 dead links. So I'm letting Google play hide-and-seek with EPA now. Clicking on the superfund site name should take you to a page of Google search results for the superfund site.
I hope this works better. However, if you experience problems with this approach, please let me know. Thanks!