Groundwater in Crawford County contains arsenic, chloride, and fluoride. These contaminants are present at levels below EPA health standards, so they are not a concern for well owners in this county.
These contaminants come from the bedrock itself. The crystalline rock that makes up the Piedmont and Blue Ridge mountains naturally contains small amounts of arsenic and fluoride. Chloride seeps in from soil and weathered rock. The hard rock aquifer here does not trap contamination easily, which keeps levels low overall.
Groundwater in Crawford County is soft, with low levels of iron, sodium, and sulfate. Soft water comes from the crystalline rock beneath the county, which does not dissolve and release large amounts of minerals the way limestone does. Most wells in this county show this same soft-water pattern.
Wells in Crawford County show some contaminants that deserve your attention, even though they are not at levels that exceed EPA health standards right now. Arsenic, chloride, and fluoride are present in county groundwater and can pose health risks with long-term exposure. Arsenic exposure over time can increase cancer risk and cause problems with skin, nerves, and the heart. Chloride and fluoride at elevated levels can affect different body systems with extended drinking.
The good news is that Crawford County's well water tends to be soft and low in sodium and sulfate, so you probably won't see staining, scale buildup, or salty taste that plague other areas. Your water heater and dishwasher should not suffer premature wear from mineral deposits. If anything, soft water makes these appliances last longer.
We recommend testing your specific well because every well is different and yours could have higher or lower levels of these contaminants than what is common across the county. Testing is the only way to know what is actually in your water so you can treat it properly if needed. A comprehensive metals and minerals panel typically costs between $200 and $400. Depending on results, treatment options like activated carbon filters or ion exchange systems can address these concerns.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Arsenic | 1 | 0% | Low | Low ⓘ | |
| Chloride | 3 | 0% | Low | Low ⓘ | |
| Nitrite | 1 | 0% | Low | Safe ⓘ | |
| Fluoride | 3 | 0% | Low | Low ⓘ | |
| Iron | 1 | 0% | Low | Safe ⓘ | |
| Iron | 1 | 0% | Low | Safe ⓘ | |
| pH | 3 | — | Low | Low ⓘ | |
| Sodium | 3 | — | Low | Low ⓘ | |
| Hardness | 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.
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