Your well draws water from mixed rock layers beneath Richland County. These rocks are not one single type but a combination of shale, sandstone, and other stone that holds water in small spaces and fractures. Water moves through these layers slowly and steadily, feeding your well year after year.
The rock layers here naturally protect your groundwater from serious contamination. The solid stone acts as a filter, and the slow movement of water through it gives the ground time to break down or trap harmful materials before they reach your well. No harmful chemicals show up in the county's test results, which tells you the geology is doing its job.
Your water will have some minerals in it from sitting in contact with these rocks. You may notice your water leaves a slight buildup on fixtures or has a bit of a mineral taste. This is normal for this area and does not cause problems for most households, though a water softener can help if buildup bothers you.
The water in Richland County does not show any contaminants that exceed EPA health standards based on available data. No harmful substances were detected in the test results. This is good news for your well water.
Since no contaminants were found at harmful levels, there are no long-term health effects to worry about from your groundwater. You should not experience staining, scaling, taste problems, or odor issues from mineral content either.
To confirm your water stays safe to drink, get a certified lab test done. A basic health screen for bacteria and nitrate costs about fifty to one hundred dollars. A state-certified lab can run the test for you.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Manganese | 66 | 62% | 23% · 15% · 62% | Moderate | High |
| Iron | 78 | 51% | 37% · 13% · 50% | Moderate | High |
| Lead | 3 | 50% | 33% · 33% · 33% | Low | High |
| Sulfate | 41 | 8% | 76% · 17% · 7% | Moderate | Moderate |
| Chloride | 76 | 7% | 82% · 12% · 7% | Moderate | Moderate |
| Arsenic | 4 | 0% | 75% · 25% · 0% | Low | Low |
| Fluoride | 23 | 0% | 100% · 0% · 0% | Moderate | Low |
| Fecal Coliform | 1 | — | — | Low | Safe |
| Hardness | 29 | — | — | Moderate | Low |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| Nitrate | 3 | — | — | Low | Low |
| Nitrite | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| pH | 7 | — | — | Low | Low |
| Sodium | 47 | — | — | 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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