Well Water in Fulton County: What to Test and Why

High Risk
Testing Strongly Recommended 54 well tests on record
Top Concerns in This County
Manganese Radon

Why This Happens Here

Groundwater in Fulton County contains manganese, radon, PFOS, and PFOA at levels exceeding EPA health standards. These contaminant levels are concerning and warrant your attention.

Manganese and radon come naturally from the crystalline rock beneath the county. PFOS and PFOA are human-made chemicals that enter groundwater from industrial sites, landfills, and other sources and persist in the environment. The rock's fractures allow both natural minerals and contamination to reach well water.

Groundwater in this county is soft with low iron and low minerals overall. The hard crystalline rock here breaks down slowly, releasing few dissolved minerals into the water. Most wells in Fulton County show this soft-water pattern.

What This Means for You

Fulton County wells contain manganese, PFOA, PFOS, and radon at levels that exceed EPA health standards. Manganese can affect your nervous system and brain development, especially in children. PFOA and PFOS are human-made chemicals that can harm your liver, immune system, and thyroid over time. Radon is a radioactive gas that increases lung cancer risk when you breathe it in.

The mineral content in county wells is soft and low in iron, sodium, and sulfate. This means you should not experience staining on fixtures or clothes, buildup of scale in pipes, or unpleasant tastes and odors. Your water heater and dishwasher should have a normal lifespan.

Testing your well is the only way to know what is actually in your water, since every well is different and your levels could be higher or lower than what is common in the county. We recommend a comprehensive panel that checks for metals, minerals, and chemicals, which typically costs $200-400. Depending on your results, treatment options like activated carbon filters or radon mitigation systems can address what you find.

Not sure if your well is affected? Get certified results in 5–7 days.

Test Your Well Water with Tap Score →

Contaminant Detection Data

Contaminant Samples ⓘ % Above MCL ⓘ Distribution ⓘ Confidence ⓘ Risk ⓘ
Manganese 18 22%
Moderate High
Radon 17 18%
Moderate High ⓘ
PFOS ⓘ municipal 55 5%
Moderate Moderate
PFOA ⓘ municipal 55 4%
Moderate Moderate
Elevated concentration, not % above limit
Arsenic 18 0%
Moderate Safe
Nitrite 18 0%
Moderate Low
PFNA ⓘ municipal 55 0%
Moderate Safe
Iron 18 0%
Moderate Low
Fluoride 22 0%
Moderate Low
HFPO-DA (GenX) ⓘ municipal 55 0%
Moderate Safe
Chloride 22 0%
Moderate Low
Uranium 18 0%
Moderate Safe
Sulfate 22 0%
Moderate Low
PFNA ⓘ municipal 55 0%
Moderate Safe
PFHxS ⓘ municipal 55 0%
Moderate Safe
Nitrite 18 0%
Moderate Low
Nitrate 22 0%
Moderate Low
Lead 18 0%
Moderate Low
Iron 18 0%
Moderate Low
HFPO-DA (GenX) ⓘ municipal 55 0%
Moderate Safe
Fluoride 22 0%
Moderate Low
Chloride 22 0%
Moderate Low
Arsenic 18 0%
Moderate Safe
Hardness 22 —
Moderate Low
PFBS ⓘ municipal 55 —
Moderate Low
pH 21 —
Moderate Low
Sodium 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 Health Context

Population-level CDC data. Not individual risk prediction.

5.3%
Cancer Prevalence
(state avg: 6.3%)

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