Well Water in Jones County: What to Test and Why

Groundwater in Jones County contains chloride, iron, and sulfate at levels that exceed EPA health standards. These contaminants are present at moderate to notable concentrations and warrant attention for well owners in this area.

The Castle Hayne aquifer sits beneath coastal plain rock and is naturally exposed to saltwater influence from its proximity to the Atlantic coast. Chloride enters the groundwater from seawater intrusion in this low-lying area. Iron and sulfate come from the rock layers themselves--minerals that dissolve as water moves through the ground.

Groundwater in this county is notably high in iron and shows moderate sulfate content, with iron being the primary aesthetic concern. These minerals come from the surrounding rock layers that naturally contain iron-bearing minerals and sulfate deposits. Most wells in Jones County show these elevated iron and sulfate levels because the Castle Hayne aquifer's composition makes it the dominant characteristic of the water across the county.

Wells in Jones County commonly have chloride, iron, and sulfate at levels that exceed EPA health standards. Chloride at elevated levels can be a concern for people on restricted sodium diets or with certain health conditions. Iron and sulfate in drinking water can affect the body's ability to absorb nutrients properly over time. Testing your well is the only way to know if these contaminants are present in your water.

Iron in county well water often causes orange or brown staining on sinks, toilets, and laundry. It can give water a metallic taste and unpleasant smell. Chloride and sulfate can make water taste salty or bitter. These mineral issues are annoying but usually just affect how your water looks and tastes rather than your health.

We recommend testing your well water with a comprehensive panel since multiple analytes exceed standards in this county. Every well is different, and yours could have higher or lower levels than what is common here. A comprehensive metals and minerals panel typically costs between two hundred and four hundred dollars and is the only way to know what is actually in your water so you can treat it properly. Iron removal systems and chloride filters are treatment options that can help improve water quality.