Your well water comes from old limestone and dolomite rock layers deep underground. These rocks are stacked on top of each other and have small cracks that let water flow through slowly. This underground stone layer holds water that your well pulls up.
The rock itself acts as a natural filter. Water moves very slowly through tight cracks in limestone, which gives it time to settle and lets particles drop out. The limestone and the soil above it protect your groundwater from contaminants that sit on the surface.
Water that sits in limestone picks up minerals and becomes hard. You will probably notice white crusty buildup on your pipes and faucets. A water softener can help reduce this buildup and make your water feel better for washing and bathing.
Good news—your well water in Pickaway County shows no contaminants detected above EPA health standards. The county water data does not reveal any health risks that require immediate action. Testing remains important because county-level data does not tell you about your specific well.
Because no contaminants exceed EPA limits, you should not expect health effects from long-term exposure based on available data. Your water quality depends on your individual well location and depth. Mineral information like iron, sodium, and sulfate levels is not available from county data, so you cannot know if staining, scaling, or taste problems affect your water.
Get your well tested by a state-certified lab to know your actual water quality. A basic health screen for bacteria and nitrate runs fifty to one hundred dollars. Contact the Pickaway County health department for a list of certified labs in your area.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Manganese | 67 | 59% | 28% · 13% · 58% | Moderate | High |
| Lead | 8 | 29% | 62% · 12% · 25% | Low | High |
| Sulfate | 53 | 6% | 76% · 19% · 6% | Moderate | Moderate |
| Arsenic | 11 | 0% | 73% · 27% · 0% | Low | Low |
| Chloride | 49 | 0% | 90% · 10% · 0% | Moderate | Low |
| Fluoride | 15 | 0% | 87% · 13% · 0% | Moderate | Low |
| Iron | 12 | 0% | 83% · 17% · 0% | Low | Moderate |
| Uranium | 3 | 0% | 100% · 0% · 0% | Low | Low |
| Fecal Coliform | 1 | — | — | Low | Safe |
| Hardness | 21 | — | — | Moderate | Low |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| Nitrate | 1 | — | — | Low | Safe |
| Nitrite | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| pH | 6 | — | — | Low | Low |
| Sodium | 77 | — | — | 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.
Population-level CDC data. Not individual risk prediction.
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