Well Water in Kent County: What to Test and Why

Groundwater in Kent County contains manganese, iron, and PFOS, along with chloride, sulfate, and related PFOA and PFNA compounds. Several of these contaminants exceed EPA health standards, making testing and treatment important.

The iron and manganese dissolve naturally from the rock layers as groundwater moves slowly through them in low-oxygen conditions underground. PFOS and related compounds enter from human sources such as manufacturing facilities or contaminated sites. Chloride and sulfate also come partly from minerals in the bedrock and partly from road salt and agricultural activity that soaks into the ground.

Groundwater in this county is high in iron, which drives much of the water's character. Iron concentrates in these rocks as water sits in oxygen-poor zones deep underground. Elevated iron is common across wells in Kent County, and most well owners here deal with similar mineral profiles.

Wells in this county contain several contaminants that exceed EPA health standards. Chloride, iron, manganese, and PFOA are all present at concerning levels. PFOS, PFNA, and PFHxS--chemicals used in industrial products--have also been detected above safe drinking water limits. Exposure to these PFOA and related chemicals over time has been linked to health effects including liver damage, thyroid problems, and immune system impacts. Manganese at elevated levels can affect brain development, especially in children. Iron and chloride themselves do not directly cause health problems at the levels found here, but they indicate the need for testing to understand your specific situation.

Wells in Kent County commonly have high iron, which causes orange and brown staining on sinks, toilets, and laundry. The water may taste metallic or have an unpleasant odor. Mineral buildup will accumulate inside pipes, water heaters, and appliances, potentially shortening their lifespan. The combination of these minerals creates noticeable everyday challenges with water quality and home maintenance.

We recommend testing your well with a comprehensive metals and minerals panel, since multiple contaminants are present in county wells. Every well is different, and your well may have higher or lower levels than what is common here. 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. Iron removal systems and activated carbon filters can address some of these concerns.