Groundwater in Ashe County contains arsenic, chloride, and bacteria, but contaminant levels here are low and do not exceed EPA health standards. Well owners should be aware of these substances, but they are present at concentrations that do not pose immediate health concerns based on current testing data.
Arsenic and chloride occur naturally in the crystalline rock that underlies this county. The granite and metamorphic rock here release small amounts of arsenic as groundwater slowly moves through cracks and fractures deep below the surface. Chloride also enters groundwater from natural sources in the rock and from road salt in some areas. Bacteria can enter wells from surface contamination, but the rock's depth and natural filtration keep contamination low in most cases.
Water in Ashe County is soft with very low levels of iron, sodium, and sulfate. The crystalline rock here does not release large amounts of minerals into the groundwater the way limestone or shale would. These low-mineral characteristics are common across wells throughout the county, reflecting the stable nature of the bedrock and the area's relatively undeveloped landscape.
Wells in Ashe County show detectable levels of arsenic and chloride, though neither reaches EPA health standards. Arsenic can harm your kidneys and bones with long-term exposure. E. coli bacteria, if present in a well, can cause serious illness in children, older adults, and people with weak immune systems.
The good news is that wells in this county have very soft water with low mineral content. You should not see orange staining from iron, white scale buildup on fixtures, or salty taste in your drinking water. Your water heater and dishwasher should not wear out early from mineral damage.
Every well is different, and your well could contain higher or lower levels than what is common here. Testing is the only way to know what is actually in your water so you can treat it properly. We recommend a basic screening test for bacteria and nitrate, which costs around fifty to one hundred dollars, to understand your well's condition. Depending on your results, treatment options like chlorination or activated carbon filters can address specific concerns.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Arsenic | 5 | 0% | Low | Safe ⓘ | |
| Chloride | 5 | 0% | Low | Low ⓘ | |
| Fluoride | 5 | 0% | Low | Low ⓘ | |
| Iron | 5 | 0% | Low | Low ⓘ | |
| Lead | 5 | 0% | Low | Safe ⓘ | |
| Manganese | 5 | 0% | Low | Low ⓘ | |
| Nitrate | 5 | 0% | Low | Low ⓘ | |
| Nitrite | 5 | 0% | Low | Safe ⓘ | |
| Radon | 5 | 0% | Low | Low ⓘ | |
| Sulfate | 5 | 0% | Low | Low ⓘ | |
| Uranium | 5 | 0% | Low | Safe ⓘ | |
| Sodium | 5 | — | Low | Low ⓘ | |
| pH | 5 | — | Low | Low ⓘ | |
| Hardness | 5 | — | 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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