Groundwater in Greene County contains iron, manganese, and arsenic. Iron and manganese are present at levels that exceed EPA health standards, so well owners should test their water and consider treatment options.
These metals come from the rock layers beneath Greene County. The Valley and Ridge bedrock here contains iron-bearing minerals that dissolve slowly into groundwater as water moves through cracks and pores in the stone. Manganese enters the same way. Arsenic also occurs naturally in some of these rock formations. This is a common pattern in areas with older, mineral-rich stone.
Groundwater in this county is soft, with iron being the main mineral that stands out. Iron dissolves from the surrounding rock as water filters down through the aquifer. Water softness here means calcium and magnesium are low, which is typical for this type of bedrock. Most wells in Greene County show this soft water character, though iron levels vary from well to well.
Wells in Greene County sometimes have iron and manganese at levels that exceed EPA health standards. Iron can cause problems with your blood and organs if you drink too much over a long time. Manganese can affect your brain and nervous system, especially in children, when consumed at high levels.
Iron in county well water often leaves red or brown stains on sinks, toilets, and laundry. It can make your water taste metallic and look cloudy or discolored. Manganese can turn water dark or leave dark stains. The good news is that Greene County wells are soft, so you probably won't see the scale buildup and appliance damage that happens in harder water areas.
We recommend testing your well to find out what you actually have. Every well is different, and yours could have higher or lower levels than what we see across the county. A comprehensive metals panel costs between $200 and $400 and will show exactly what needs attention. Iron and manganese can be removed with aeration systems, filters, or other treatment methods once you know your levels.
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 ⓘ |
|---|---|---|---|---|---|
| Manganese | 20 | 60% | 35% · 5% · 60% | Moderate | High |
| Iron | 5 | 20% | 40% · 40% · 20% | Low | High ⓘ |
| HFPO-DA (GenX) ⓘ municipal | 3 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFNA ⓘ municipal | 3 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFHxS ⓘ municipal | 3 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Uranium | 4 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Chloride | 27 | 0% | 100% · 0% · 0% | Moderate | Low |
| Sulfate | 19 | 0% | 100% · 0% · 0% | Moderate | Low |
| PFOS ⓘ municipal | 3 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFOA ⓘ municipal | 3 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Chloride | 27 | 0% | 100% · 0% · 0% | Moderate | Low |
| Sulfate | 19 | 0% | 100% · 0% · 0% | Moderate | Low |
| Uranium | 4 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Fluoride | 11 | 0% | 100% · 0% · 0% | Low | Low |
| Nitrite | 6 | 0% | 83% · 17% · 0% | Low | Low ⓘ |
| Nitrate | 25 | 0% | 100% · 0% · 0% | Moderate | Low |
| Arsenic | 3 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Lead | 4 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| PFBS ⓘ municipal | 3 | — | 100% · 0% · 0% | Low | Safe ⓘ |
| pH | 8 | — | — | Low | Low ⓘ |
| Sodium | 29 | — | — | Moderate | Low |
| E. coli | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Hardness | 18 | — | — | Moderate | Low |
| Fecal Coliform | 1 | 0% | 100% · 0% · 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.
Data shows potential risk — a certified test confirms whether your water is affected.
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