Groundwater in Spotsylvania County contains arsenic, chloride, and e. coli. Contaminant levels here are low and do not exceed EPA health standards.
These contaminants come from natural sources in the sediment and rock beneath the county. Arsenic occurs naturally in the underground layers. Chloride and e. coli can enter from surface sources like septic systems or surface runoff that seeps down into shallow wells, but the county's geology filters many contaminants before they reach deeper water supplies.
Groundwater in this county is soft with low sodium and sulfate levels, meaning the water does not carry high concentrations of dissolved minerals. The sandy and clayey sediment of the coastal plain aquifer system does not contribute significant amounts of hardness-forming minerals like calcium and magnesium. This soft, low-mineral character is common across wells throughout the county.
Good news: county well water does not show analytes exceeding EPA health standards in the data we have. However, arsenic, chloride, and bacteria do show up in some wells here and deserve attention. Arsenic can build up in your body over time and increase the risk of cancer and other serious illnesses. Chloride at high levels can affect people with heart or kidney problems. Bacteria like E. coli cause stomach illness and diarrhea.
The good news about minerals is that wells in this county tend to have soft water with low sodium and low sulfate. You probably won't see much staining, scale buildup, or taste problems from minerals. Your appliances should not wear out faster because of mineral content.
Testing is the only way to know what is actually in your well, since every well is different and yours could have higher or lower levels than what is common here. We recommend a comprehensive metals and minerals panel to check for arsenic, bacteria, and other concerns. Testing typically costs $200 to $400, and treatment options like activated carbon filters or reverse osmosis can address most contaminants.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Arsenic | 2 | 0% | Low | Safe ⓘ | |
| Chloride | 3 | 0% | Low | Low ⓘ | |
| Fluoride | 3 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 10 | 0% | Low | Safe | |
| Iron | 2 | 0% | Low | Safe ⓘ | |
| Lead | 2 | 0% | Low | Low ⓘ | |
| Manganese | 2 | 0% | Low | Low ⓘ | |
| Nitrate | 2 | 0% | Low | Low ⓘ | |
| Nitrite | 2 | 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 | 2 | 0% | Low | Low ⓘ | |
| Sulfate | 3 | 0% | Low | Low ⓘ | |
| Uranium | 2 | 0% | Low | Low ⓘ | |
| Hardness | 3 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 10 | — | Low | Safe | |
| pH | 2 | — | 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.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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