Well Water in Clearfield County: What to Test and Why

High Risk
Testing Strongly Recommended 28466 samples analyzed
Top Concerns in This County
Manganese Iron Radon

Why This Happens Here

Groundwater in Clearfield County contains manganese, iron, sulfate, chloride, lead, radon, and uranium at levels that exceed EPA health standards. These contaminant levels are serious and demand your attention.

The Mississippian bedrock beneath this county naturally contains iron, manganese, and uranium. As groundwater sits in cracks and spaces within this old rock, it dissolves these metals and gases into the water over time.

Groundwater in this county is very hard, driven by elevated calcium and magnesium from the limestone and mineral-rich rock below. Iron at very high levels and sulfate at high levels are the defining characteristics of water here. These mineral traits show up across wells throughout the county.

What This Means for You

Wells in Clearfield County commonly exceed EPA health standards for several dangerous contaminants. Lead damages brain development and nervous system function in children and causes high blood pressure in adults. Radon is a radioactive gas that increases lung cancer risk when breathed in from water vapor. Uranium also poses cancer risks with long-term exposure. Chloride, manganese, and sulfate at elevated levels can cause stomach problems and other health effects. Iron above safe levels can harm organs over time.

Wells in this county produce water that is extremely hard, which can shorten the lifespan of water heaters and dishwashers. The high iron content creates orange-brown staining on sinks, toilets, and laundry that is difficult to remove. Sulfate gives the water a bitter or unpleasant taste and can cause stomach upset. Hard water leaves thick white or tan crusty buildup on pipes, fixtures, and appliances. These issues affect daily quality of life and household maintenance.

We recommend testing your well with a comprehensive metals and radon panel right away, since every well is different and yours 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 aeration systems combined with sediment filters and water softeners can address multiple concerns.

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 27 96% 7% · 0% · 93% Moderate High
Iron 30 59% 37% · 7% · 57% Moderate High
Sulfate 96 43% 47% · 10% · 43% Moderate High
Radon 15 27% 67% · 7% · 27% Moderate High
Lead 51 22% 76% · 2% · 22% Moderate High
Uranium 11 10% 91% · 0% · 9% Low Moderate
Chloride 63 3% 95% · 2% · 3% Moderate Moderate
Elevated concentration, not % above limit
Fluoride 2 0% 100% · 0% · 0% Low Low
Arsenic 6 0% 67% · 33% · 0% Low Low
PFHxS ⓘ municipal 27 0% 100% · 0% · 0% Moderate Safe
HFPO-DA (GenX) ⓘ municipal 27 0% 100% · 0% · 0% Moderate Safe
PFOA ⓘ municipal 27 0% 100% · 0% · 0% Moderate Safe
PFOS ⓘ municipal 27 0% 100% · 0% · 0% Moderate Safe
PFNA ⓘ municipal 26 0% 100% · 0% · 0% Moderate Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
Total Coliform 1 0% 100% · 0% · 0% Low Safe
pH 24 Moderate Low
Nitrite 1 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Hardness 30 Moderate Low
PFBS ⓘ municipal 27 100% · 0% · 0% Moderate Safe
Sodium 89 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.

7.9%
Cancer Prevalence
(state avg: 7.0%)
6.6%
Heart Disease Rate
(state avg: 7.2%)
3.5%
Kidney Disease Rate
(state avg: 3.0%)

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