Nearly two years after the storm, some of the changes I am seeing in wells are becoming harder to dismiss as isolated cases.
About a year after Helene, a cat started showing up in our yard. He was not feral, but clearly without a home. For the first few days, food was about the only assurance we could offer him. Slowly he stopped running away when he saw us. Over the next several months he allowed us closer, eventually let us handle him, and began showing an interest in coming inside on cold winter nights even though we had provided him a heated outdoor shelter.
Today this cat is fully part of our household: affectionate, attention-seeking, and increasingly comfortable with people he recognizes we trust. Some of his earlier cautious behaviors and food insecurity have faded. He remains terrified of thunderstorms and hard rain, taking refuge in tight places where he feels safe and protected; remaining hidden for hours at a time until storms pass.
I cannot tell you that Helene is why Loverboy ended up without a home, or that the storm explains the behaviors he carried with him. I simply do not know with certainty. The circumstances and timing are part of why we suspect it. His unexpected arrival long after the storm, and the time it has taken for some of his insecurities to ease, made me think about the way Helene continues to show up in this region. His very noticeable long tail probably helped make the connection for me. Helene has a long tail too.
For me, private wells have become one of the clearest examples.
What I am still seeing in wells
The immediate concerns after a flood are well understood and documented: physical damage, surface-water intrusion, septic contamination, and bacterial risk. Those are serious, and they deserve immediate attention. What interests me now is what we began to witness after the storm and what, in our own work, has continued to become more prevalent — in wells that are still functioning, in homes that may never have seen obvious floodwater at the wellhead, and in systems we have serviced long enough to know something about their history.
One of the most impactful changes in our work has been a notable increase in iron-related bacteria, or IRB. Historically, I would estimate that we encountered IRB in roughly 20% of the wells we serviced or tested. In our more recent experience, that number is closer to 60%. That is not a scientific survey of Western North Carolina, and I do not present it as regional prevalence. It is what we experience in our own service and testing work.
What makes the pattern harder for me to ignore is that some of these are sites we have known for years. We retest wells annually as a matter of practice and inspect the inside of filtration equipment during service. We are now finding IRB conditions in wells where we had no prior history of seeing them.
Among the tests where IRB is present, I would estimate that 45% or more show well-developed colony or biofilm-like material that is visibly apparent. That tells me that in many of these wells we are dealing with much more than a barely detectable presence.
IRB is easy to misread
IRB often first reaches us as an odor complaint, and we hear it particularly with hot water and electric water heaters. Odor alone does not prove IRB; water heaters and sulfur bacteria can create similar complaints. It is a reason to investigate, not a reason to jump to a diagnosis.
When we get into the equipment, the picture can become much clearer. A common sign is fluffy brown material clinging to the inside of tanks, along with increased turbidity or orange-brown discoloration. When that material is disturbed, it can break apart and disperse through the water. That cloudy orange-brown appearance is often interpreted as ordinary ferric iron — “red-water iron.”
If the water is allowed to sit undisturbed, the difference can become easier to see. The bacterial material may regroup into soft, fluffy matter that can lift or float. Iron oxide is generally denser and tends to settle into a smoother layer. A toilet tank is one of the simplest places to see this distinction when the condition is developed enough.
We use IRB-BART testing when we need a better indication of how developed the bacterial activity is. Like any field method, it needs to be interpreted for what it is: reaction time provides an approximate IRB population expressed as CFU/mL and indicates when IRB-related activity is present. It is not the same as direct laboratory colony enumeration or species identification.
IRB is not the only thing that has changed
We have also seen established wells shift in pH, iron, manganese, tannins, silica, coliform, E. coli, and other bacterial conditions. In some locations these parameters have increased; in others they have decreased. Some of those changes are documented against earlier test results. In other cases, the homeowner is the first warning system: new staining, cloudiness, color, taste, or odor in a well that had seemed stable for years.
I suspect that some of what we are seeing may reflect longer-term changes in source hydrology after an event as significant as Helene. But suspicion is not proof. I cannot responsibly say that Helene caused each change we find in an individual well. Wells are dynamic even without a hurricane. Groundwater moves through fractured rocks, soils, recharge zones, and changing conditions. A well that has been dependable for twenty years is not guaranteed to continue producing the same water quality in year twenty-one.
Having a baseline changes the conversation
The strongest lesson Helene has reinforced for me is the value of having a history. If all we know is what a well looks like today, it can be difficult to say what has changed. If we have prior laboratory results, field readings, service observations, equipment condition, photographs, and customer reports, we have something meaningful to compare against.
That is one reason we are putting more effort into historical record continuity for the wells we work with. A test result becomes more useful when it is part of a timeline.
This also changes the way I talk with homeowners. I do not think the right question is simply, “Is my well working?” A pump producing water tells us the mechanical system is working. It does not tell us the water quality is unchanged or reliable.
What I recommend for well owners
At a minimum, federal guidance recommends testing a private well every year for total coliform bacteria, nitrate, total dissolved solids, and pH, with additional testing based on local conditions and suspected contaminants. In my own work in Western North Carolina, I strongly recommend annual bacterial confirmation that includes total coliform and E. coli, and I am paying much more attention to IRB than I did before Helene.
Depending on the location, prior results, geology, nearby risks, and what the water is doing, I may also want to review conditions such as iron, manganese, nitrate, pH, radon, hexavalent chromium, or other parameters. That is not meant to suggest that every well needs every possible test every year. The point is to establish a useful baseline and then test intelligently against the risks and history of your well.
Home test kits can be better than no testing, but I would not use a simple kit to clear a well when there is a real reason to suspect contamination. When the answer matters, use appropriate laboratory testing — typically through a state-certified laboratory when the result will guide a health-related decision.
If you have a new odor, unusual color or cloudiness, sudden bad taste, flooding, a chemical spill nearby, a suspected septic leak, or some other reason to believe the risk may have changed, do not assume the water is fine. Avoid drinking it until you understand what changed and appropriate testing gives you a basis to proceed.
The long tail
Most of the visible damage from Helene is no longer new. That does not mean every consequence is behind us. Some effects emerge slowly, some are recognized only because someone has enough history to notice that the baseline moved, and some may take years before we understand them well.
Loverboy is asleep comfortably in his new home. His story does not prove anything about Helene. For me, he is simply a reminder that an event can pass while its effects continue to surface and heal in unexpected ways.
I think our wells deserve the same patience and attention.