Groundwater in Somerset County contains iron, sulfate, and radon at levels that exceed EPA health standards. These contaminants are a serious concern and require attention.
The rock beneath Somerset County is ancient sandstone and shale filled with cracks and spaces where water sits for a long time. As water moves slowly through these layers, it picks up iron and sulfate from the rock itself. Radon gas seeps out of uranium that breaks down naturally within the stone. Chloride also accumulates in this water as it stays in contact with mineral deposits deep underground.
Groundwater in this county is soft but carries moderate iron and sulfate that shape its character. Iron and sulfate dissolve naturally from the rock layers as water moves through them over years. These mineral characteristics show up across wells throughout the county.
Wells in Somerset County commonly contain chloride, iron, radon, and sulfate at levels exceeding EPA health standards. Radon is a radioactive gas that increases lung cancer risk with long-term exposure through inhalation. Chloride at elevated levels can affect people managing high blood pressure or heart disease. Iron and sulfate themselves are not direct health threats at the levels found here, but radon deserves your attention.
The moderate iron in county wells stains sinks, toilets, and laundry with reddish-brown marks. You may notice a metallic taste in your water or occasional odors. The sulfate can cause digestive issues in some people. While the water in this county is relatively soft, the combination of iron and minerals still affects everyday use and can shorten the lifespan of water heaters and dishwashers.
We recommend testing your well water with a comprehensive metals and radon panel, since multiple contaminants exceed health standards in this county. Every well is different--yours may 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 panel typically costs $200-400, and treatment options like aeration systems combined with water softeners can 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 ⓘ |
|---|---|---|---|---|---|
| Iron | 5 | 50% | 60% · 0% · 40% | Low | High ⓘ |
| Sulfate | 131 | 35% | 57% · 8% · 35% | High | High |
| Radon | 13 | 25% | 54% · 23% · 23% | Low | High ⓘ |
| Chloride | 96 | 1% | 91% · 8% · 1% | Moderate | Low |
| PFOA ⓘ municipal | 56 | 0% | 98% · 2% · 0% | Moderate | Low |
| PFOS ⓘ municipal | 56 | 0% | 100% · 0% · 0% | Moderate | Safe |
| Uranium | 6 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| PFHxS ⓘ municipal | 44 | 0% | 100% · 0% · 0% | Moderate | Safe |
| PFNA ⓘ municipal | 44 | 0% | 100% · 0% · 0% | Moderate | Safe |
| HFPO-DA (GenX) ⓘ municipal | 44 | 0% | 100% · 0% · 0% | Moderate | Safe |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Lead | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Fecal Coliform | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| E. coli | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Hardness | 34 | — | — | Moderate | Low |
| Sodium | 94 | — | — | Moderate | Low |
| Fluoride | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Manganese | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Nitrite | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Arsenic | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFBS ⓘ municipal | 44 | — | 100% · 0% · 0% | Moderate | Safe |
| pH | 20 | — | — | 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.
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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