Iron and manganese are present in Jefferson County's groundwater at levels that exceed EPA health standards. These metals are present at concerning concentrations that warrant attention from well owners.
The sandy and clay layers that make up the Southeastern Coastal Plain aquifer system naturally contain iron and manganese minerals. As groundwater slowly moves through these layers over time, water dissolves these metals and carries them into wells. Arsenic also occurs naturally in some of these rocks at lower concentrations.
Groundwater in this county contains elevated iron that gives the water its notable character. The sandy geology here readily releases iron as water passes through, and this elevated iron is found across many wells in the county. Water hardness is low, which is typical for this type of aquifer system.
Iron and manganese are found at levels exceeding EPA health standards in wells throughout Jefferson County. Elevated iron in drinking water can affect children's development and behavior. Manganese at high levels can damage the nervous system, especially in young children and infants. Both metals need attention to protect your family's health.
County well water contains moderate iron, which leaves reddish or brown stains on sinks, bathtubs, and laundry. You might notice a metallic or bitter taste in the water. The good news is that the water in this county is soft, so you won't deal with stubborn scale buildup on pipes and appliances like you would in harder water areas.
Testing your individual well is the only way to know what you actually have in your water. Your well could have higher or lower levels than what is common in the county. We recommend a comprehensive metals and minerals panel, which typically costs between $200 and $400. Iron removal systems or sediment filters can treat these metals once you know what you're dealing with.
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 | 14 | 36% | Low | High | |
| Manganese | 9 | 33% | Low | High ⓘ | |
| PFOA ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Nitrite | 2 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Fluoride | 14 | 0% | Low | Low | |
| Arsenic | 3 | 0% | Low | Low ⓘ | |
| Chloride | 19 | 0% | Moderate | Low | |
| Arsenic | 3 | 0% | Low | Low ⓘ | |
| Chloride | 19 | 0% | Moderate | Low | |
| Fluoride | 14 | 0% | Low | Low | |
| HFPO-DA (GenX) ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Lead | 5 | 0% | Low | Low ⓘ | |
| Nitrate | 14 | 0% | Low | Low | |
| Nitrite | 2 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 2 | 0% | Low | Safe ⓘ | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Sulfate | 15 | 0% | Moderate | Low | |
| Uranium | 1 | 0% | Low | Safe ⓘ | |
| Hardness | 24 | — | Moderate | Low | |
| PFBS ⓘ municipal | 2 | — | Low | Safe ⓘ | |
| pH | 17 | — | Moderate | Low | |
| Sodium | 13 | — | 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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