Radon, manganese, iron, and per- and polyfluoroalkyl substances (PFAS) are present in Dutchess County groundwater, with radon, PFOS, iron, and manganese exceeding EPA health standards. These contamination levels warrant attention and testing.
The limestone rock beneath Dutchess County contains radioactive elements that release radon naturally as groundwater moves through fractures and pores. Iron and manganese dissolve from minerals in the carbonate bedrock as slightly acidic water passes through. PFAS contamination comes from industrial sources and historical use in firefighting foams, which have entered the groundwater in some areas.
Groundwater in this county is hard, driven by elevated calcium and magnesium from the limestone below. Water moving through carbonate rock dissolves these minerals readily, making hardness a widespread characteristic across most wells in the county.
Dutchess County wells commonly exceed EPA health standards for radon, PFOS, PFOA, iron, and manganese. Radon is a radioactive gas that enters groundwater from bedrock and can increase lung cancer risk when you breathe it in. PFOS and PFOA are human-made chemicals that build up in your body over time and can affect your immune system, liver, and thyroid. Elevated iron and manganese can harm your nervous system and affect how your body uses oxygen, especially in children and pregnant women.
The hard water common in county wells will leave white scale buildup on your pipes and fixtures. You may notice a metallic taste in your drinking water and rusty or brown staining on sinks and laundry. Over time, scale can clog pipes and shorten the lifespan of water heaters and dishwashers. The hardness here is significant enough that treatment would make daily life easier.
We recommend a comprehensive water panel test since your well has multiple concerns. Every well is different, and yours could have much 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 you can treat it properly. A comprehensive metals, minerals, and radon panel typically costs $200-400. Treatment options like radon removal systems and water softeners can address these issues once you have your results.
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 ⓘ |
|---|---|---|---|---|---|
| Radon | 10 | 60% | Low | High ⓘ | |
| Manganese | 41 | 27% | Moderate | High | |
| Iron | 43 | 14% | Moderate | Moderate | |
| PFOS ⓘ municipal | 49 | 8% | Moderate | Moderate | |
| PFOA ⓘ municipal | 49 | 6% | Moderate | Moderate | |
| Arsenic | 40 | 0% | Moderate | Low | |
| Chloride | 43 | 0% | Moderate | Low | |
| Fluoride | 43 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 49 | 0% | Moderate | Safe | |
| Lead | 40 | 0% | Moderate | Low | |
| Nitrate | 43 | 0% | Moderate | Low | |
| Nitrite | 34 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 49 | 0% | Moderate | Safe | |
| PFNA ⓘ municipal | 49 | 0% | Moderate | Safe | |
| Sulfate | 43 | 0% | Moderate | Low | |
| Uranium | 10 | 0% | Low | Low | |
| Total Coliform | 3* | 0% | Low | Low ⓘ | |
| Sodium | 41 | — | Moderate | Low | |
| pH | 43 | — | Moderate | Low | |
| PFBS ⓘ municipal | 49 | — | Moderate | Low | |
| Hardness | 43 | — | Moderate | Low | |
| Fecal Coliform | 3* | 0% | Low | Safe ⓘ | |
| E. coli | 3* | 0% | 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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