Well Water in Harnett County: What to Test and Why

Groundwater in Harnett County contains PFOA, PFOS, and iron at levels that exceed EPA health standards. These contaminants are present at moderate to elevated concentrations and warrant attention for private well owners.

PFOA and PFOS are human-made chemicals used in industrial processes and consumer products that have contaminated groundwater across the county, likely from manufacturing sites, landfills, or other point sources. Iron occurs naturally in the sand and clay layers of the underground rocks here, released into groundwater as water moves through the soil over time.

Groundwater in this county is characterized by moderate iron content. The sand and clay aquifer naturally releases iron as water passes through it, making this characteristic common across many wells in the area.

Wells in Harnett County contain iron, PFOA, and PFOS at levels that exceed EPA health standards. Iron in drinking water can cause problems with your blood and organs over time. PFOA and PFOS are chemicals that build up in your body and can affect your immune system, thyroid, and liver. These contaminants need attention.

Iron in county well water causes visible staining on fixtures, laundry, and dishes that is hard to remove. You may notice a metallic taste or rust-colored water coming from your taps. The good news is that sodium and sulfate levels are low in this area, so your water is not unusually hard or salty.

We recommend testing your well with a comprehensive panel that checks for metals, minerals, and these specific chemicals, since multiple contaminants are a concern in the county. Every well is different, and yours could have higher or lower levels than what is common here. Testing is the only way to know what is actually in your water so you can treat it properly. A comprehensive panel typically costs $200 to $400. Iron removal filters and PFOA/PFOS treatment systems can both address these concerns.