Well Water in Clarion County: What to Test and Why

Groundwater in Clarion County contains manganese, sulfate, lead, iron, chloride, PFOA, PFOS, and radon at levels that exceed EPA health standards. These contaminant levels are a serious concern and require attention.

The Pennsylvanian rock beneath this county naturally breaks down and releases manganese, iron, and sulfate into groundwater as water moves slowly through fractures in the stone. Lead enters the water where it contacts older pipes or plumbing. Radon seeps from uranium scattered throughout the rock layers. Chloride can come from road salt and from deeper sources in the bedrock.

Groundwater in this county is moderately hard, with elevated sulfate as the dominant mineral character. Sulfate concentrations build up as water moves through sulfur-bearing rock layers common to this region. These characteristics are widespread--most wells in the county show similar mineral signatures and contaminant patterns.

Wells in Clarion County contain several contaminants that exceed EPA health standards. Lead and radon are radioactive hazards that can increase the risk of cancer and harm the brain and nervous system, especially in children. PFOA and PFOS are synthetic chemicals that can affect the immune system and liver. Manganese at high levels can damage the nervous system. Chloride and sulfate at elevated levels can cause digestive problems. These contaminants have no taste or smell, so testing is the only way to know if they are in your well.

Wells in this county show moderate to high levels of minerals that affect water quality and appliance lifespan. Iron causes orange or brown staining on sinks and laundry. Sulfate gives water a bitter taste and can cause scale buildup on pipes and water heaters. The moderately hard water shortens the lifespan of appliances like dishwashers and water heaters. You may notice white scale deposits in kettles and reduced soap effectiveness.

We recommend testing your well water since every well is different and your water 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 well so it can be properly treated. Given the multiple contaminants of concern here, a comprehensive metals and radon panel is recommended, which typically costs $200-400. Water softeners, aeration systems, and activated carbon filters can address many of these concerns.