Groundwater in Calhoun County contains iron, manganese, and nitrate at levels that exceed EPA health standards. These contaminants are present at concentrations that require your attention.
Iron and manganese occur naturally in the sandy and clay layers beneath this county. Nitrate enters groundwater from fertilizers and septic systems in the area. As water moves through these rocks, it dissolves and picks up these metals and nutrients from the soil and rock layers above.
Groundwater in this county is soft, with low iron, sodium, and sulfate levels based on available measurements. The soft water character reflects the sandy and clay composition of the local aquifer, which does not contribute significant minerals like calcium and magnesium. Most wells across Calhoun County show this same soft water pattern.
Wells in Calhoun County contain iron, manganese, and nitrate at levels that exceed EPA health standards. Iron and manganese can harm your nervous system and organs with long-term exposure. Nitrate is especially dangerous for babies under six months old, as it interferes with how their blood carries oxygen. These contaminants enter your groundwater through natural processes and human activities in the area.
The good news is that mineral levels in Calhoun County wells are actually quite low overall, so staining, scale buildup, and taste problems from hard water are not common concerns here. Your water should look and taste normal in most cases. The soft water in this county is actually easier on your appliances and plumbing than hard water would be.
Testing your well is the only way to know what is actually in your water, since every well is different and your levels could be higher or lower than what is typical in the county. We recommend a comprehensive metals and minerals panel, which costs between $200 and $400. Once you know what you are dealing with, treatment options like ion exchange filters or activated carbon systems can remove these contaminants 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 ⓘ |
|---|---|---|---|---|---|
| Iron | 19 | 11% | Moderate | Moderate | |
| Manganese | 19 | 11% | Moderate | Moderate | |
| Nitrate | 25 | 4% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| Lead | 12 | 0% | Low | Low | |
| Sulfate | 25 | 0% | Moderate | Low | |
| Radon | 4 | 0% | Low | Low ⓘ | |
| Uranium | 11 | 0% | Low | Low | |
| Arsenic | 12 | 0% | Low | Low | |
| Sodium | 25 | — | Moderate | Low | |
| pH | 26 | — | Moderate | Low | |
| Hardness | 26 | — | Moderate | 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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