Groundwater in Otsego County contains iron, arsenic, and chloride. Iron exceeds the EPA health standard, while arsenic and chloride remain at levels of low concern.
Iron dissolves naturally from minerals locked in the bedrock beneath the county. As groundwater sits in contact with these rock layers over time, iron concentrates in the water. Arsenic also occurs naturally in certain portions of the same rock formations, and chloride can enter from road salt applied during winter months.
Groundwater in this county is very hard, driven by elevated calcium and magnesium from the limestone and rock layers below. The slow movement of water through these mineral-rich layers allows these minerals to dissolve and accumulate in the water. Hard water is common across most wells in Otsego County.
Wells in Otsego County contain iron at levels that exceed EPA health standards. Long-term exposure to elevated iron can affect your health over time. Iron itself is not an immediate poison, but persistent exposure warrants attention and testing to understand your specific situation.
Wells in this county show very hard water. Iron causes orange or rust-colored stains on sinks, toilets, and laundry. The water may taste metallic or have a slightly off taste. Hard water can shorten the lifespan of water heaters and dishwashers due to mineral buildup inside the equipment.
We recommend testing your well water, since every well is different and yours may have higher or lower levels than what is common in the county. Testing is the only way to know what is actually in your well so it can be properly treated. A basic health screen runs $50-100. An iron filtration system can remove iron and improve water quality.
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 | 3 | 33% | Low | High ⓘ | |
| Arsenic | 3 | 0% | Low | Low ⓘ | |
| Chloride | 3 | 0% | Low | Low ⓘ | |
| Fluoride | 3 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 10 | 0% | Low | Safe | |
| Lead | 3 | 0% | Low | Safe ⓘ | |
| Manganese | 3 | 0% | Low | Low ⓘ | |
| Nitrite | 3 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 10 | 0% | Low | Safe | |
| PFNA ⓘ municipal | 10 | 0% | Low | Safe | |
| PFOA ⓘ municipal | 10 | 0% | Low | Safe | |
| PFOS ⓘ municipal | 10 | 0% | Low | Safe | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Sulfate | 3 | 0% | Low | Low ⓘ | |
| Uranium | 2 | 0% | Low | Low ⓘ | |
| Nitrate | 3 | 0% | Low | Low ⓘ | |
| Hardness | 3 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 10 | — | Low | Low | |
| pH | 6 | — | Low | Low ⓘ | |
| Sodium | 3 | — | 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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