Iron and manganese are present in Sterling County's groundwater at levels that exceed EPA health standards. These contaminants are a genuine concern for well owners in this area.
The rocks beneath Sterling County naturally contain iron and manganese minerals. As water moves through these rock layers over time, it dissolves these metals and carries them into the groundwater that fills your well.
Groundwater in this county is notably high in iron. Iron comes from the local rock and concentrates in the water as it passes through the ground. Iron is found in many wells across Sterling County.
Wells in Sterling County commonly have iron and manganese at levels above EPA health standards. Iron can cause problems with the blood's ability to carry oxygen, while manganese at elevated levels can affect the nervous system and cause issues with movement and thinking. Arsenic is also found in some county wells and poses health concerns with long-term exposure.
Iron in county wells creates visible staining on fixtures and clothes, leaving orange or brown marks that are hard to remove. You may notice a metallic taste in the water or see discoloration when you fill a glass. These mineral deposits can also build up inside pipes and water heaters over time.
We recommend testing your well to find out what is actually in your water. Every well is different, and your well could have higher or lower levels than what is common in the county. A comprehensive metals and minerals panel typically costs between $200 and $400 and is the only way to know for sure what needs treatment. Options like water softeners or specialized filters can help reduce iron and manganese once testing shows what you are 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 | 47 | 15% | Moderate | Moderate | |
| Manganese | 46 | 2% | Moderate | Low | |
| Arsenic | 46 | 0% | Moderate | Low | |
| Fluoride | 370 | 0% | High | Low | |
| Lead | 45 | 0% | Moderate | Low | |
| Nitrate | 14 | 0% | Low | Low | |
| Uranium | 5 | 0% | 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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