Groundwater in Eaton County contains iron, lead, manganese, chloride, and sulfate. Multiple of these contaminants exceed EPA health standards and warrant concern.
The rocks beneath Eaton County naturally release iron and manganese into the water as it moves slowly through cracks and spaces underground. Lead enters from old pipes or service lines in some wells. Chloride seeps in partly from road salt applied to nearby highways, while sulfate dissolves from minerals locked in the bedrock.
Groundwater in this county is very hard, driven by elevated calcium and magnesium from the local rock. Iron dissolves naturally from minerals in these same formations. These characteristics are common across wells throughout the county.
Wells in Eaton County commonly exceed EPA health standards for chloride, iron, lead, manganese, and sulfate. Lead is especially dangerous because it builds up in your body over time and can harm children's brains and development. Manganese at elevated levels can affect brain function and is a particular concern for young children. Chloride at high concentrations is a health risk for people with certain medical conditions. Iron and sulfate themselves are not directly regulated for health, but they indicate what else may be in the water.
The mineral content in county wells creates noticeable quality-of-life problems. Iron causes orange or rust-colored staining on sinks, toilets, and laundry. High sulfate gives water a bitter taste and can cause digestive problems. The water in this county is very hard, which means scale will build up inside pipes and appliances. Hard water this severe can shorten the lifespan of water heaters and dishwashers. You may also notice the water feels slippery or leaves spots on dishes.
We recommend testing your well because every well is different and yours may have higher or lower levels than what is common in the county. Testing is the only way to know what is actually in your water so it can be properly treated. Since multiple analytes exceed health standards here, a comprehensive metals and minerals panel is recommended and typically costs $200-400. Treatment options like reverse osmosis systems or iron removal filters can address multiple contaminants 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 ⓘ |
|---|---|---|---|---|---|
| Iron | 84 | 93% | Moderate | High | |
| Lead | 3 | 33% | Low | High ⓘ | |
| Manganese | 39 | 28% | Moderate | High | |
| Sulfate | 90 | 6% | Moderate | Moderate | |
| Chloride | 90 | 3% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| Arsenic | 21 | 0% | Moderate | Low | |
| Fluoride | 39 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 10 | 0% | Low | Safe | |
| Nitrite | 2 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 10 | 0% | Low | Low | |
| PFNA ⓘ municipal | 10 | 0% | Low | Safe | |
| PFOA ⓘ municipal | 11 | 0% | Low | Safe | |
| PFOS ⓘ municipal | 10 | 0% | Low | Safe | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Uranium | 5 | 0% | Low | Low ⓘ | |
| Nitrate | 30 | 0% | Moderate | Low | |
| Sodium | 79 | — | Moderate | Low | |
| pH | 92 | — | Moderate | Low | |
| PFBS ⓘ municipal | 10 | — | Low | Low | |
| Hardness | 90 | — | 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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