Well Water in Forest County: What to Test and Why

Low Risk
Informational — Low Risk Detected 44 well tests on record
Top Concerns in This County
Iron Manganese Pfos

Why This Happens Here

Groundwater in Forest County contains iron, manganese, and radon that well owners should know about. Iron and manganese exceed EPA health standards, and radon does too, which means these contaminants reach concerning levels in this county's wells.

The Pennsylvanian rock layers beneath Forest County naturally contain iron and manganese minerals that dissolve into groundwater as water moves slowly through cracks and spaces in the stone. Radon comes from tiny amounts of uranium scattered throughout these same rock layers. These contaminants appear together because the groundwater sits in old, oxygen-poor conditions deep underground where minerals break down and release into the water.

Groundwater in this county is soft and not notably hard, but it is high in iron, which is the main mineral that stands out in Forest County wells. Iron dissolves from minerals in the dark shale and sandstone layers here as groundwater passes through them over time. Most wells across the county show elevated iron, making this a common characteristic in the area.

What This Means for You

Wells in Forest County commonly exceed EPA health standards for iron, manganese, radon, and PFOA and PFOS. Manganese at elevated levels can harm brain development and function over time. Iron itself does not cause direct health risks, but radon is a radioactive gas that increases cancer risk when present in drinking water. PFOA and PFOS are synthetic chemicals that can build up in your body and may affect health with long-term exposure.

Wells in this county show very high iron levels that cause orange-brown staining on sinks, toilets, and laundry. You may also notice a metallic taste in the water. The good news is that the water is relatively soft, so you should not see heavy white scale buildup on pipes and fixtures like you would in harder-water areas.

We recommend testing your well water through a certified lab, 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. Because several analytes exceed health standards, a comprehensive metals and radon panel typically costs two hundred to four hundred dollars. Treatment options like aeration systems for iron removal and radon mitigation can address these 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
Iron 26 96%
Moderate High
Manganese 27 89%
Moderate High
Radon 2 50%
Low High
PFOS ⓘ municipal 16 38%
Moderate High
PFOA ⓘ municipal 16 6%
Moderate Moderate
Fluoride 24 0%
Moderate Low
HFPO-DA (GenX) ⓘ municipal 16 0%
Moderate Safe
Nitrite 21 0%
Moderate Low
Uranium 13 0%
Low Low
PFHxS ⓘ municipal 2 0%
Low Safe
PFNA ⓘ municipal 2 0%
Low Safe
Arsenic 22 0%
Moderate Low
Chloride 24 0%
Moderate Low
Lead 23 0%
Moderate Low
Nitrate 23 0%
Moderate Low
Sulfate 24 0%
Moderate Low
Total Coliform 1* 0%
Low Safe
Hardness 27
Moderate Low
E. coli 1* 0%
Low Safe
PFBS ⓘ municipal 16
Moderate Low
pH 29
Moderate Low
Sodium 25
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.

5.8%
Cancer Prevalence
(state avg: 7.0%)
9.4%
Heart Disease Rate
(state avg: 7.2%)

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