Groundwater in Wilson County contains iron and arsenic at levels high enough to exceed EPA health standards. Iron reaches very high concentrations, while arsenic is present in amounts that warrant attention from well owners.
These contaminants come from the rock layers beneath the county. Iron occurs naturally in the sand, clay, and gravel that make up the local aquifer system. Arsenic also occurs naturally in these underground layers and can dissolve into groundwater as it moves through them.
Groundwater in this county is notably high in iron, which is the dominant mineral affecting water character. The sand and clay layers here naturally release iron into water that filters through them. This iron-rich water is a common condition across many wells throughout Wilson County.
Wells in Wilson County commonly have arsenic and iron at levels that exceed EPA health standards. Arsenic can cause skin problems and increase cancer risk over many years of drinking it. Iron at high levels in drinking water does not pose a direct health threat, but arsenic exposure is a genuine concern for families using wells in this area.
The iron in county wells creates visible staining on sinks, toilets, and laundry. You may notice rust-colored water coming from the tap or a metallic taste in your drinking water. These problems are annoying but do not affect your health directly.
We recommend testing your well water with a comprehensive metals panel to find out exactly what is in your water. Every well is different, and your water could have higher or lower levels than what is common in the county. Testing is the only way to know what you are actually dealing with so you can treat it properly. A comprehensive panel costs between $200 and $400 and can identify what needs to be removed from your specific well.
Not sure if your well is affected? Get certified results in 5–7 days.
Test Your Well Water with Tap Score →| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Iron | 9 | 88% | 22% · 0% · 78% | Low | High ⓘ |
| Arsenic | 4 | 67% | 25% · 25% · 50% | Low | High ⓘ |
| PFHxS ⓘ municipal | 14 | 0% | 100% · 0% · 0% | Low | Safe |
| PFOS ⓘ municipal | 14 | 0% | 100% · 0% · 0% | Low | Safe |
| Manganese | 2 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Chloride | 31 | 0% | 97% · 3% · 0% | Moderate | Low |
| Nitrite | 2 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| HFPO-DA (GenX) ⓘ municipal | 14 | 0% | 100% · 0% · 0% | Low | Safe |
| Sulfate | 45 | 0% | 100% · 0% · 0% | Moderate | Low |
| Lead | 2 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Radon | 1 | 0% | 0% · 100% · 0% | Low | Low ⓘ |
| Hardness | 33 | — | — | Moderate | Low |
| pH | 14 | — | — | Low | Low |
| Sodium | 31 | — | — | Moderate | Low |
| Uranium | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| E. coli | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Total Coliform | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Fecal Coliform | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Fluoride | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFBS ⓘ municipal | 14 | — | 100% · 0% · 0% | Low | Safe |
MCL = Maximum Contaminant Level (EPA limit for public water; used as benchmark for private wells). Distribution shows % of sampled wells in each concentration band. Methodology.
Data shows potential risk — a certified test confirms whether your water is affected.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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