Groundwater in Jasper County contains radon, arsenic, and chloride. Radon is the only contaminant here that exceeds EPA health standards, and it occurs at elevated levels that warrant attention.
Radon comes from the natural breakdown of uranium in the crystalline bedrock beneath this county. Arsenic and chloride also occur naturally in this rock type and are present at low levels across the region.
Groundwater in this county is soft with very low concentrations of iron, sodium, and sulfate. The crystalline rock here does not dissolve easily to release large amounts of minerals into the water, which keeps the water chemically simple. Most wells in Jasper County show this same soft-water pattern with minimal mineral content.
Radon is the main health concern found at elevated levels in wells across Jasper County. Radon is a radioactive gas that comes from natural rock and soil. When radon builds up in your home through well water, it can increase the risk of lung cancer over time, especially with long-term exposure. Testing is the only way to know if radon is present in your specific well.
The good news is that mineral levels in county wells are generally low. Iron, sodium, sulfate, and water hardness all show minimal concentrations in this area. You should not experience staining, scale buildup, odd tastes, or odors from minerals in your water, and your appliances should not wear out early from mineral buildup.
Every well is different, and your water could have higher or lower radon levels than what is common in the county. We recommend testing your well to find out exactly what you have so you can treat it properly if needed. A radon test is affordable and straightforward. If radon is detected, aeration systems or activated carbon filters can reduce it effectively.
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 ⓘ |
|---|---|---|---|---|---|
| Radon | 1 | 100% | Low | High ⓘ | |
| Arsenic | 1 | 0% | Low | Safe ⓘ | |
| Nitrite | 1 | 0% | Low | Safe ⓘ | |
| Chloride | 5 | 0% | Low | Low ⓘ | |
| PFNA ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Fluoride | 5 | 0% | Low | Low ⓘ | |
| Iron | 1 | 0% | Low | Low ⓘ | |
| PFOA ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Arsenic | 1 | 0% | Low | Safe ⓘ | |
| Fluoride | 5 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Iron | 1 | 0% | Low | Low ⓘ | |
| Lead | 1 | 0% | Low | Low ⓘ | |
| Manganese | 1 | 0% | Low | Low ⓘ | |
| Nitrate | 5 | 0% | Low | Low ⓘ | |
| Nitrite | 1 | 0% | Low | Safe ⓘ | |
| PFHxS ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| PFOA ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Sulfate | 5 | 0% | Low | Low ⓘ | |
| Hardness | 5 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 4 | — | Low | Safe ⓘ | |
| pH | 5 | — | Low | Low ⓘ | |
| Sodium | 5 | — | Low | Low ⓘ |
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.
* Microbial contaminants (E. coli, coliform) reflect only samples from the last 10 years.
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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