Groundwater in Coweta County contains radon, PFOA, and PFOS at levels that exceed EPA health standards. These contaminants are present at concerning concentrations that well owners need to address.
Radon comes from the crystalline rock below the county--it is naturally released as the rock slowly breaks down over time. PFOA and PFOS are human-made chemicals that have entered groundwater through industrial and commercial activities, including use in firefighting foams and manufacturing. These chemicals move through the ground and can reach well water, especially in areas where they were released or disposed of.
Groundwater in this county is soft with moderate iron content. The iron comes from the crystalline rock itself, which naturally contains iron-bearing minerals that dissolve slowly into water. Water softness and moderate iron are found across many wells in the county.
Wells in Coweta County have been found to contain PFOA, PFOS, and radon at levels that exceed EPA health standards. PFOA and PFOS are human-made chemicals that can build up in your body over time and have been linked to serious health problems including kidney and liver damage, thyroid disease, and immune system effects. Radon is a radioactive gas that enters water from rocks and soil underground and increases your risk of cancer when you breathe it in or drink water containing it.
The mineral levels in county wells are generally low, which is good news for your appliances and plumbing. You should not experience the staining, scaling, or taste problems that come with very hard water. Your water heater and dishwasher should have a normal lifespan without mineral-related damage.
We recommend testing your well as soon as possible since every well is different and your water may have higher or lower levels than what is common in the county. A comprehensive metals and minerals panel along with testing for PFOA, PFOS, and radon costs between two hundred and four hundred dollars and is the only way to know what is actually in your water. Treatment options like activated carbon filters or reverse osmosis systems can address many of these contaminants.
Not sure if your well is affected? Get certified results in 5–7 days.
Test Your Well Water with Tap Score →| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Radon | 1 | 100% | Low | High ⓘ | |
| PFOA ⓘ municipal | 22 | 18% | Moderate | High | |
| PFOS ⓘ municipal | 22 | 5% | Moderate |
Moderate
Elevated concentration, not % above limit
|
|
| Lead | 1 | 0% | Low | Safe ⓘ | |
| Manganese | 1 | 0% | Low | Low ⓘ | |
| Uranium | 1 | 0% | Low | Low ⓘ | |
| Nitrate | 5 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 22 | 0% | Moderate | Low | |
| Sulfate | 5 | 0% | Low | Low ⓘ | |
| Fluoride | 5 | 0% | Low | Low ⓘ | |
| HFPO-DA (GenX) ⓘ municipal | 22 | 0% | Moderate | Safe | |
| Nitrite | 1 | 0% | Low | Safe ⓘ | |
| Nitrate | 5 | 0% | Low | Low ⓘ | |
| PFHxS ⓘ municipal | 22 | 0% | Moderate | Low | |
| Sulfate | 5 | 0% | Low | Low ⓘ | |
| pH | 5 | — | Low | Low ⓘ | |
| Sodium | 5 | — | Low | Low ⓘ | |
| Hardness | 5 | — | Low | Low ⓘ | |
| PFBS ⓘ municipal | 22 | — | 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.
* 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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