Well Water in Champaign County: What to Test and Why

Your well water comes from fractured old limestone and dolomite rock layers deep underground. These rocks have tiny cracks that let water seep through slowly. The same rock type lies under all the neighboring counties too.

Radon, iron, and lead all come from the rock itself. Radon is a natural radioactive gas that forms inside the stone. Iron dissolves out as water moves through the cracks. Lead can enter from old pipes or solder in your well system or home plumbing. The fractured rock does not filter out these metals and gases the way gravel or clay would.

Your water is very hard, with huge amounts of calcium and magnesium from the limestone. You will see white crusty buildup on faucets and inside pipes. Iron stains sinks and toilets orange or brown. The high sodium and sulfate levels mean your water tastes salty and may smell like rotten eggs. A water softener helps with hardness, but you need separate treatment for radon and iron.

Radon, iron, and lead all exceed EPA health standards in Champaign County well water. This is a serious situation that needs your attention right away. Radon is a radioactive gas that comes from natural rock deep underground. Lead can get into your water from pipes and fixtures in your home or well system.

Long-term exposure to radon increases lung cancer risk. Lead exposure harms brain development in children and can cause learning problems. The very high iron levels will stain sinks, toilets, and laundry orange or brown. Your water is extremely hard, which means white crusty buildup will clog pipes and reduce water flow.

Contact a state-certified lab and get your well tested immediately. A basic health screen costs around $50 to $100, but you need a comprehensive test including radon and lead that runs $200 to $400. Ask your lab about point-of-entry aeration for radon and a whole-house water softener with iron removal.