Groundwater in Nolan County contains nitrate, iron, and manganese that exceed EPA health standards. These contaminant levels are concerning enough to warrant testing and awareness.
Nitrate enters the groundwater from fertilizers and septic systems in agricultural and residential areas. Iron and manganese dissolve naturally from the rock layers beneath the county as water moves through them underground.
Groundwater in this county is marked by elevated iron and manganese, the minerals that define its character. These metals leach from the local bedrock as water passes through, and this pattern is common across wells throughout the county.
Groundwater in Nolan County contains iron, manganese, and nitrate at levels that exceed EPA health standards. Manganese can harm how your nervous system works over time. Nitrate is especially dangerous for babies and young children because it interferes with the blood's ability to carry oxygen. Iron at elevated levels does not pose a direct health risk but indicates water quality concerns.
Wells in this county often have reddish-brown or black staining from iron and manganese buildup. These minerals can leave a metallic taste in your water and create stubborn stains on laundry, dishes, and fixtures that are hard to remove. Iron can also clog pipes and reduce water pressure in your home over time.
Every well is different and your well may have higher or lower levels than what is common in the county. We recommend getting your well tested to find out what is actually in your water so you can treat it properly. A comprehensive metals and minerals panel typically costs between $200 and $400. Iron and manganese removal systems or water softeners can help address these concerns.
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 ⓘ |
|---|---|---|---|---|---|
| Nitrate | 24 | 25% | Moderate | High | |
| Iron | 54 | 24% | Moderate | High | |
| Manganese | 50 | 12% | Moderate | Moderate | |
| Arsenic | 43 | 0% | Moderate | Low | |
| Fluoride | 146 | 0% | High | Low | |
| HFPO-DA (GenX) ⓘ municipal | 4 | 0% | Low | Safe ⓘ | |
| Lead | 43 | 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 | 6 | 0% | Low | Low ⓘ | |
| PFBS ⓘ municipal | 4 | — | Low | Safe ⓘ |
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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