Well Water in Athens County: What to Test and Why

Moderate Risk
Testing Recommended 18335 samples analyzed
Top Concerns in This County
Sulfate Manganese Radon

Why This Happens Here

Groundwater in Athens County contains manganese, radon, and sulfate that exceed EPA health standards. These contaminant levels are concerning and warrant testing and possible treatment.

The rock beneath Athens County is coal-bearing shale and sandstone that formed in ancient swamps. As groundwater moves slowly through cracks and fractures in these rocks, it dissolves iron, manganese, and sulfate directly from the minerals. Radon gas seeps out naturally from radioactive minerals in the bedrock.

Groundwater in this county is very hard, driven by elevated calcium and magnesium from the rock layers below. Water sitting in contact with iron-rich shale releases iron and manganese into the supply. These characteristics are common across wells in Athens County.

What This Means for You

Wells in Athens County commonly exceed EPA health standards for chloride, manganese, radon, and sulfate. Manganese can affect brain development and learning in children when exposure happens over time. Radon is a radioactive gas that increases lung cancer risk when breathed in from shower steam and other household water use. Chloride at elevated levels is a concern for people on salt-restricted diets. These contaminants come directly from the bedrock and accumulate as groundwater moves slowly through cracks in the rock.

The very hard water in this county leaves thick white scale buildup on pipes, fixtures, and inside water heaters and dishwashers--scale that can shorten the lifespan of these appliances. Iron causes orange-brown or rust-colored stains on sinks, toilets, and laundry. Sulfate at the levels found here can give water a bitter or unpleasant taste. The combination of mineral content makes everyday tasks harder and increases maintenance needs around the home.

We recommend testing your well with a comprehensive metals and minerals panel, as every well is different and your well may have higher or lower levels than what is common in the county. Testing is the only way to know what is actually in your water so it can be properly treated. A comprehensive panel typically costs between $200 and $400. Treatment options like whole-house filtration systems combined with water softeners can address multiple contaminants at once.

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 3 100% 33% · 0% · 67% Low High
Radon 1 100% 0% · 0% · 100% Low High
Sulfate 88 40% 48% · 12% · 40% Moderate High
Chloride 69 9% 77% · 14% · 9% Moderate Moderate
Fluoride 6 0% 100% · 0% · 0% Low Low
Iron 4 0% 100% · 0% · 0% Low Low
Uranium 1 0% 100% · 0% · 0% Low Low
HFPO-DA (GenX) ⓘ municipal 7 0% 100% · 0% · 0% Low Safe
PFHxS ⓘ municipal 7 0% 100% · 0% · 0% Low Safe
PFOS ⓘ municipal 7 0% 100% · 0% · 0% Low Safe
PFOA ⓘ municipal 7 0% 100% · 0% · 0% Low Safe
PFNA ⓘ municipal 7 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 0% 100% · 0% · 0% Low Safe
Lead 1 0% 100% · 0% · 0% Low Safe
PFBS ⓘ municipal 7 100% · 0% · 0% Low Safe
pH 20 Moderate Low
Sodium 57 Moderate Low
Nitrate 1 0% 100% · 0% · 0% Low Safe
Arsenic 1 0% 100% · 0% · 0% Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Hardness 39 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.

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.

6.3%
Cancer Prevalence
(state avg: 6.8%)

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