There are thousands of superfund sites in the US--there was a clean up through EPA, but the money ran out a few years ago (basically was a "tax" on companies who used these toxic materials) and was not renewed by congress. Thus there is only partial remediation or no remediation at many sites.
This type of study is done mostly on pregnant women and children looking for latent birth defects or cancers. Unfortunately it will be a very difficult study, since people in the military typically in this period changed posts every 2 or so years. They will have been exposed to toxins at other sites. For example NAS Pensacola has several superfund sites, as well as most of the associated outlying fields. Over a dozen associated with this facility alone.
In looking at the epidemiology of cancer there are so many other factors--such as radon, air pollution, industrial l exposur, cigarette smoke and even vapors from dry cleaning.
I certainly hope we don't see law suits about this type of issue.