Shelby County groundwater contains manganese, iron, and fluoride. All three are present at levels that exceed EPA health standards and deserve attention from well owners.
These contaminants come from the rock layers beneath the county. The Mississippi embayment aquifer system here contains iron-bearing minerals and naturally occurring fluoride that dissolve as water moves slowly through the ground over time.
Groundwater in this county is soft but notably high in sodium, which comes from the rock layers below. The water also carries moderate levels of iron from the iron-rich minerals in the aquifer system. These mineral characteristics appear across many wells throughout the county.
Shelby County well water sometimes contains fluoride, iron, and manganese at levels above EPA health standards. Fluoride at elevated levels can damage tooth enamel, especially in young children whose teeth are still developing. Iron and manganese can affect how your body processes certain nutrients and may impact your nervous system with long-term exposure.
The water in this county is soft, which is good for your pipes and appliances. However, the very high sodium content is the biggest quality-of-life concern for many residents. You might notice a salty taste in your drinking water and cooking water. High sodium can also make the water feel slippery when you wash.
Every well is different, and your water could have higher or lower levels than what is common here. Testing is the only way to know what is actually in your well so you can treat it properly. We recommend a comprehensive metals and minerals panel, which usually costs between two hundred and four hundred dollars. Treatment options like reverse osmosis systems or point-of-use filters can address multiple concerns at once.
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 ⓘ |
|---|---|---|---|---|---|
| Manganese | 82 | 16% | Moderate | High | |
| Iron | 108 | 12% | High | Moderate | |
| Fluoride | 218 | 0% | High | Low | |
| Arsenic | 43 | 0% | Moderate | Safe | |
| Chloride | 4 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 16 | 0% | Moderate | Safe | |
| Lead | 43 | 0% | Moderate | Low | |
| Nitrate | 21 | 0% | Moderate | Low | |
| Nitrite | 4 | 0% | Low | Safe ⓘ | |
| PFHxS ⓘ municipal | 16 | 0% | Moderate | Safe | |
| PFNA ⓘ municipal | 16 | 0% | Moderate | Safe | |
| PFOA ⓘ municipal | 16 | 0% | Moderate | Safe | |
| PFOS ⓘ municipal | 16 | 0% | Moderate | Safe | |
| Radon | 2 | 0% | Low | Low ⓘ | |
| Sulfate | 4 | 0% | Low | Low ⓘ | |
| Uranium | 19 | 0% | Moderate | Low | |
| Hardness | 4 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 16 | — | Moderate | Safe | |
| pH | 4 | — | Low | Low ⓘ | |
| Sodium | 4 | — | 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.
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