Well Water in Fulton County: What to Test and Why

Groundwater in Fulton County contains manganese, iron, chloride, and nitrite that exceed EPA health standards. Several of these contaminants are present at levels that warrant attention.

These metals and minerals come from the rock beneath the county. When groundwater sits in contact with iron-bearing rock layers in low-oxygen conditions deep underground, iron and manganese dissolve into the water. Chloride enters from road salt applied to highways and agricultural areas, while nitrite comes from fertilizer and septic systems that seep into the groundwater.

Groundwater in this county is very hard, driven by elevated calcium and magnesium from the surrounding rock. These high hardness levels are common across wells in Fulton County.

Wells in Fulton County commonly contain chloride, iron, manganese, nitrite, and sulfate at levels above EPA health standards. Nitrite interferes with how blood carries oxygen, which is especially dangerous for infants. Manganese can harm brain development in children with long-term exposure. Chloride at elevated levels stresses kidneys. Iron and sulfate themselves are not direct health threats at these levels, but they add to the overall contamination burden in county groundwater.

The mineral content in Fulton County wells creates visible, daily problems. Iron stains sinks, toilets, and laundry orange-brown. Manganese leaves dark stains that are hard to remove. The water is extremely hard, which means thick white scale builds up inside pipes, water heaters, and dishwashers--shortening their lifespan. You may notice a metallic taste or a rotten-egg smell from the sulfate and other minerals.

We recommend testing your well right away because 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. Since multiple contaminants exceed health standards, a comprehensive metals and minerals panel is recommended, which typically costs $200-400. Treatment options like oxidation filters combined with water softening can address multiple contaminants at once.