Groundwater in Mitchell County contains sulfate, chloride, iron, manganese, fluoride, and nitrate. Several of these contaminants exceed EPA health standards, with chloride, fluoride, iron, and nitrate reaching concerning levels.
These contaminants come from the local rock and soil. The other rocks making up the aquifer in this area naturally contain minerals that dissolve into groundwater over time. Saltwater from deeper underground can also mix with shallower wells, adding chloride and other salts. Nitrate comes from fertilizer and septic systems above ground.
Groundwater in this county is very hard, driven by extremely high sulfate and sodium along with elevated iron. The rock layers here release these minerals naturally as water moves through the ground, and the dry climate concentrates salts rather than flushing them away. These characteristics are widespread across wells in the county.
Wells in Mitchell County commonly contain fluoride, nitrate, chloride, iron, manganese, and sulfate at levels above EPA health standards. Fluoride in high amounts can damage tooth enamel and skeletal bone development in children and adults. Nitrate reduces the blood's ability to carry oxygen, which is especially dangerous for babies under six months old. Chloride, iron, and manganese at elevated levels can harm kidney function and nervous system development over time.
The extremely hard water in this county causes stubborn staining on sinks, showers, and laundry that is difficult to remove. Mineral buildup creates scale inside pipes and appliances, shortening the lifespan of water heaters and dishwashers. High sodium and sulfate levels can create a salty taste and rotten-egg odor in the water, making it unpleasant to drink and use for cooking.
We recommend a comprehensive water test since multiple analytes exceed health standards in county wells. Your well could have higher or lower levels than what is common here--testing is the only way to know what is actually in your water so you can treat it properly. A comprehensive metals and minerals panel costs between $200 and $400. Treatment options like reverse osmosis systems or specialized filtration can address multiple contaminants.
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 ⓘ |
|---|---|---|---|---|---|
| Sulfate | 10 | 100% | Low | High | |
| Chloride | 34 | 76% | Moderate | High | |
| Iron | 57 | 35% | Moderate | High | |
| Nitrate | 27 | 30% | Moderate | High | |
| Manganese | 52 | 15% | Moderate | High | |
| Fluoride | 252 | 6% | High | Moderate | |
| Arsenic | 50 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Lead | 50 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| PFNA ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| PFOA ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Uranium | 7 | 0% | Low | Low ⓘ | |
| Sodium | 10 | — | Low | Low | |
| pH | 10 | — | Low | Low | |
| PFBS ⓘ municipal | 4 | — | Low | Safe ⓘ | |
| Hardness | 10 | — | 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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