Groundwater in Putnam County contains sulfate, chloride, manganese, and iron at levels that exceed EPA health standards. These contaminants are present in amounts serious enough to warrant testing and treatment.
The rock beneath Putnam County naturally contains iron and manganese that dissolve into groundwater as water moves slowly through cracks and fractures. Sulfate comes from minerals like gypsum baked into these same rock layers. Chloride enters from road salt spread on highways and farm runoff that seeps down through the soil.
Groundwater in this county is very hard, driven by elevated calcium and magnesium from the limestone and dolomite below. This slow-moving water has extended contact with mineral-rich rock, picking up hardness along with iron and sulfate. Most wells in Putnam County show these hard-water characteristics.
Wells in Putnam County commonly have chloride, iron, manganese, and sulfate at levels exceeding EPA health standards. Chloride and sulfate can affect kidney function over time. Manganese is particularly concerning because long-term exposure can harm nervous system development, especially in children. Iron at elevated levels raises health concerns, though the specific effects depend on how much you are exposed to over time.
The water in this county is extremely hard, which means you will see white, crusty buildup on faucets, showerheads, and fixtures. Iron staining will leave orange or rust-colored marks on sinks, tubs, and laundry. The sulfate can give water a bitter or unpleasant taste. This extreme hardness can shorten the lifespan of water heaters, dishwashers, and other appliances.
We recommend testing your well with a comprehensive metals and minerals panel, since multiple analytes exceed health standards. Every well is different--your well 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 water so it can be properly treated. A comprehensive panel typically costs $200-400, and treatment options like water softeners combined with iron filters can address these issues.
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 ⓘ |
|---|---|---|---|---|---|
| Sulfate | 52 | 29% | 52% · 19% · 29% | Moderate | High |
| Chloride | 60 | 20% | 63% · 17% · 20% | Moderate | High |
| Manganese | 41 | 18% | 63% · 20% · 17% | Moderate | High |
| Iron | 40 | 15% | 82% · 2% · 15% | Moderate | High |
| Arsenic | 7 | 0% | 71% · 29% · 0% | Low | Low ⓘ |
| Lead | 5 | 0% | 100% · 0% · 0% | Low | Low ⓘ |
| Fluoride | 15 | 0% | 100% · 0% · 0% | Moderate | Low |
| PFOA ⓘ municipal | 6 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| HFPO-DA (GenX) ⓘ municipal | 6 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFOS ⓘ municipal | 6 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFHxS ⓘ municipal | 6 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFNA ⓘ municipal | 6 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| E. coli | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| pH | 7 | — | — | Low | Low ⓘ |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| PFBS ⓘ municipal | 6 | — | 100% · 0% · 0% | Low | Low ⓘ |
| Nitrite | 1 | 0% | 100% · 0% · 0% | Low | Safe ⓘ |
| Sodium | 65 | — | — | Moderate | Low |
| Hardness | 30 | — | — | 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.
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