Well Water in Potter County: What to Test and Why

Potter County groundwater contains radon, iron, and manganese at levels exceeding EPA health standards. Several other contaminants--arsenic, chloride, and PFOA/PFOS--also exceed federal limits, making this a serious water quality concern requiring immediate attention.

These contaminants come from the Mississippian bedrock beneath Potter County. Radon seeps naturally from radioactive elements trapped in the rock layers. Iron and manganese dissolve into groundwater in low-oxygen zones deep underground where water sits in contact with iron-bearing minerals. Arsenic and chloride also occur naturally in the fractured rock, with chloride likely entering from road salt applied to highways.

Groundwater in Potter County is soft, but elevated iron drives the county's water character. Iron dissolves from the surrounding bedrock as water moves through cracks and spaces in the rock. High iron is common across wells in this county.

Wells in Potter County commonly exceed EPA health standards for several contaminants. Arsenic builds up in the body over time and increases cancer risk. PFOA and PFOS are industrial chemicals linked to serious health effects including liver damage, immune system problems, and cancer. Radon is a radioactive gas that enters drinking water from natural rock layers and increases lung cancer risk when you breathe in the gas it releases. Chloride at high levels can harm people with heart disease or high blood pressure. Manganese can affect brain development in children and cause neurological problems with long-term exposure.

County well water contains elevated iron and manganese, which cause visible staining on sinks, toilets, and laundry. You may notice a metallic or bitter taste in the water. The water in this county is relatively soft, so scale buildup is not a major concern like it is in harder-water areas.

We recommend testing your well water with a comprehensive metals and minerals panel, since multiple contaminants exceed health standards in county wells. 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 $200-400 and can identify which contaminants need treatment, such as radon aeration systems or activated carbon filters.