Well Water in Hamilton County: What to Test and Why

Groundwater in Hamilton County contains radon, chloride, sulfate, and uranium that exceed EPA health standards. These are serious contaminants that demand your attention and testing.

The rock beneath Hamilton County is mixed and fractured, allowing water to contact radioactive elements that release radon gas into your well. Chloride and sulfate wash into the groundwater from road salt, industrial activity, and the breakdown of minerals in the surrounding rock layers.

Groundwater in Hamilton County is very hard, driven by elevated calcium and magnesium that dissolve from the local rock. Sulfate levels are also moderate and add to the mineral character of the water. These hard-water conditions are common across wells in this county.

Wells in Hamilton County contain chloride, PFOS, radon, sulfate, and uranium at levels exceeding EPA health standards. Radon is a radioactive gas that increases lung cancer risk over time. Uranium can damage kidneys and cause bone problems. Chloride and sulfate at elevated levels can harm digestion. PFOS is a human-made chemical that builds up in your body and may affect immune function and other health processes.

The very hard water in this county leaves white crusty buildup on faucets, pipes, and fixtures. Iron causes rust-colored or orange stains on sinks, toilets, and laundry. The mineral content may give water a salty or metallic taste. Hard water this severe shortens the lifespan of water heaters and dishwashers.

We recommend testing your well because every well is different and yours 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 water so it can be properly treated. Since multiple analytes exceed health standards, a comprehensive metals and minerals panel is recommended and typically costs $200-400. Treatment options may include radon aeration systems, reverse osmosis, or whole-house filtration depending on your test results.