Butler County groundwater contains arsenic, chloride, iron, lead, manganese, nitrate, PFOA, and PFOS. Multiple of these contaminants exceed EPA health standards and demand attention.
These contaminants come from the mixed rock and soil layers beneath the county. Iron and manganese dissolve naturally from the rock itself as water moves through it. Arsenic and lead also come from the bedrock. Nitrate typically enters from agricultural fertilizer and septic systems on the land above. PFOA and PFOS are industrial chemicals that have reached groundwater through various pathways in the county.
Groundwater in this county is very hard, driven by elevated calcium and magnesium that dissolve from the rock. Iron at moderate levels adds another mineral presence. The rock composition here concentrates these hardness minerals as water sits in contact with the stone. Very hard water is widespread across wells in Butler County.
Wells in Butler County commonly exceed EPA health standards for arsenic, lead, and PFOA/PFOS, which are industrial chemicals that can harm your kidneys and increase cancer risk over time. Nitrate at elevated levels is also a concern, especially for infants and pregnant women. Manganese exposure can affect brain development in children. Chloride in drinking water can raise blood pressure in some people.
The water in Butler County is very hard, which leaves white crusty buildup on faucets and inside pipes. Iron causes rust-colored or orange stains on sinks, toilets, and laundry. Hard water this severe can shorten the lifespan of water heaters and dishwashers. You may notice a metallic or salty taste in your water.
We recommend testing your well with a comprehensive metals and minerals panel because every well is different and your water 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 comprehensive panel typically costs $200-400. Treatment options include reverse osmosis systems combined with water softeners or whole-house filters designed for your specific contaminants.
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 | 319 | 50% | High | High | |
| Iron | 324 | 23% | High | High | |
| PFOS ⓘ municipal | 28 | 4% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| PFOA ⓘ municipal | 28 | 4% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| Arsenic | 237 | 3% | High |
Moderate
Elevated concentration, not % above limit
|
|
| Nitrate | 194 | 3% | High | Low | |
| Lead | 242 | 1% | High | Low | |
| Chloride | 350 | 1% | High | Low | |
| Fluoride | 226 | 0% | High | Low | |
| HFPO-DA (GenX) ⓘ municipal | 28 | 0% | Moderate | Low | |
| Nitrite | 192 | 0% | High | Low | |
| PFHxS ⓘ municipal | 28 | 0% | Moderate | Low | |
| PFNA ⓘ municipal | 28 | 0% | Moderate | Safe | |
| Radon | 16 | 0% | Moderate | Low ⓘ | |
| Sulfate | 224 | 0% | High | Low | |
| Uranium | 40 | 0% | Moderate | Low | |
| Total Coliform | 2* | 0% | Low | Low ⓘ | |
| Sodium | 313 | — | High | Low | |
| pH | 356 | — | High | Low | |
| PFBS ⓘ municipal | 28 | — | Moderate | Low | |
| Hardness | 348 | — | High | Low | |
| E. coli | 2* | 0% | 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.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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