Groundwater in Halifax 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 rock below and from land use above ground. The Early Mesozoic basin rocks dissolve arsenic naturally as water moves through them over time. Chloride can enter from road salt or septic systems. E_coli suggests contamination from surface sources, which wells with poor seals or maintenance are more prone to pick up.
Groundwater in this county is soft with very low iron and sulfate. The basin rocks here do not release high amounts of iron or minerals the way crystalline rock in neighboring counties does. This soft-water character appears across most wells in the county.
Arsenic and E. coli bacteria are contaminants found in some Halifax County wells. Arsenic can damage your kidneys and bones over time with repeated exposure. E. coli bacteria cause serious stomach and digestive illness. Chloride at elevated levels can affect people with high blood pressure or heart conditions. While none of these exceed EPA health standards across the county on average, they show up in individual wells and deserve attention.
Halifax County wells are naturally soft with low mineral content, which is good news for your pipes and appliances. You won't have to deal with hard water scale buildup or shortened water heater lifespan. The low iron and sodium mean you're unlikely to see staining, metallic tastes, or salty flavors. Your water should feel clean and soft to use.
Because arsenic, chloride, and E. coli appear in county wells, we recommend testing your well with a comprehensive panel that includes bacteria, metals, and minerals. Every well is different, and yours could have higher or lower levels than what's common here. Testing is the only way to know exactly what's in your water so you can treat it properly if needed. A comprehensive panel typically costs $200 to $400 and can include options like chlorination for bacteria or activated carbon filters for arsenic removal.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| PFNA ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| Radon | 5 | 0% | Low | Low ⓘ | |
| Arsenic | 5 | 0% | Low | Low ⓘ | |
| Chloride | 8 | 0% | Low | Low ⓘ | |
| Fluoride | 8 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| Iron | 5 | 0% | Low | Low ⓘ | |
| Lead | 5 | 0% | Low | Low ⓘ | |
| Manganese | 5 | 0% | Low | Low ⓘ | |
| Nitrate | 7 | 0% | Low | Low ⓘ | |
| Nitrite | 7 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| PFOA ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| Sulfate | 8 | 0% | Low | Low ⓘ | |
| Uranium | 5 | 0% | Low | Low ⓘ | |
| Arsenic | 5 | 0% | Low | Low ⓘ | |
| Chloride | 8 | 0% | Low | Low ⓘ | |
| Fluoride | 8 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| Iron | 5 | 0% | Low | Low ⓘ | |
| Lead | 5 | 0% | Low | Low ⓘ | |
| Manganese | 5 | 0% | Low | Low ⓘ | |
| Nitrate | 7 | 0% | Low | Low ⓘ | |
| Nitrite | 7 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| PFNA ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| PFOA ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| PFOS ⓘ municipal | 3 | 0% | Low | Safe ⓘ | |
| Radon | 5 | 0% | Low | Low ⓘ | |
| Sulfate | 8 | 0% | Low | Low ⓘ | |
| Uranium | 5 | 0% | Low | Low ⓘ | |
| Hardness | 8 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 3 | — | Low | Safe ⓘ | |
| pH | 5 | — | Low | Low ⓘ | |
| Sodium | 8 | — | 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.
Loading recent water news…