Finding out there is a Superfund site a few miles from your home lands hard. The name alone - "Superfund," the federal program for the country's most contaminated places - sounds like a verdict. Here is the honest version: proximity is a fact worth knowing, not a diagnosis, and what you should actually do about it takes about an hour.
We show nearby National Priorities List sites on every free ZIP report, with the distance to each. About 4,000 US ZIP codes have a listed site within five miles. If yours is one of them, this is the guide.
The National Priorities List (NPL) is the EPA's roster of hazardous-waste sites serious enough for the federal cleanup program - old chemical plants, landfills, metal works, military facilities. To get listed, a site is scored on its hazards and exposure pathways; listing unlocks federal authority and money to investigate and clean it up.
Two things follow from that. First, a listed site near you means real contamination was found there - this is not paperwork. Second, listing is the beginning of a managed process: investigation, containment, cleanup, monitoring. Sites only leave the list when the work is done, and completed cleanups are exactly why we exclude deleted sites from your report.
Distance from a site is the start of the question, not the end. What determines whether a site affects your household is pathways: can contamination physically travel from the site to you?
The most common off-site pathway is groundwater - a plume moving through the aquifer. That is why the sharpest question is not "how close am I?" but "where does my water come from?" Municipal systems near NPL sites are monitored and must meet federal standards; the results are public, and your ZIP report shows what your utility actually detected. Private wells are the real watch item: they are not monitored by anyone unless you test them.
Air and soil pathways are narrower - they matter mostly for homes immediately adjacent to a site or during certain cleanup operations, and the EPA documents them site by site.
Check one: read the site's profile. Every NPL site has a public EPA page (search the site name at epa.gov/superfund) listing its contaminants, cleanup stage, and - most importantly - whether any exposure pathway to nearby residents is documented. A site with completed containment and clean monitoring wells is a very different neighbor than a newly proposed one.
Check two: know your water source. On a municipal system, pull up your utility's actual test results on your free report - that is direct evidence of what reaches your tap. On a private well within a mile or two of a site, get the well tested; your state environmental program or the site's EPA project manager can tell you whether the plume has been mapped near you and what to test for.
Check three: match your filter to real detections. If your water shows contamination from any source, treat what was actually found - our filter guides match certified filters to specific contaminants rather than generic fear.
Some sites will read this and think: why alarm people with a 4-mile-away site that may never touch them? Because the alternative is worse. These sites are public record, your neighbors talk about them, and half-remembered versions are scarier than the facts. Knowing the site's name, distance, and status - and what your own water actually shows - replaces a vague dread with a checkable answer. That is the entire point of our Superfund tracker.
Does living near a Superfund site lower my property value?
Studies show listed sites can affect nearby values, with the effect fading with distance and after cleanup milestones. Deleted (completed) sites show much smaller effects. It is a real consideration, which is one more reason to know the site's actual status rather than just its existence.
Is my tap water dangerous if I live near a site?
Not by default. Municipal water near NPL sites is monitored and must meet federal standards - check your utility's actual detections on your free report. Private wells near a site are the case where testing is genuinely urgent.
What is the difference between a proposed and final NPL site?
Proposed means the EPA has scored the site and formally started the listing process; final means it is on the list and in the cleanup pipeline. We show both, labeled, because a proposed site is worth knowing about even before listing is finalized.
Can I find out what was contaminated at the site?
Yes - every site's EPA profile lists the contaminants of concern (commonly solvents, heavy metals, or PFAS at military sites) and where they were found: soil, groundwater, sediment. That tells you which pathway questions matter for your home.