Well Water in Madison County: What to Test and Why

Water under Madison County sits in old limestone and dolomite rock layers underground. These rocks are full of tiny cracks and spaces that hold water. The same type of rock stretches across all the neighboring counties in this part of Ohio.

Iron, manganese, and arsenic come from the rock itself. As groundwater sits in low-oxygen conditions deep in these layers, metals dissolve out of the stone and into your water. Sulfate forms from minerals naturally mixed into the limestone and dolomite.

Your water is extremely hard, which means white crusty buildup will form on fixtures and inside pipes. Iron in the water will stain sinks and laundry orange-brown. High sodium and sulfate levels mean your water tastes salty and may affect your pipes over time—a whole-house softener with iron removal is practical protection.

Arsenic exceeds EPA health standards in Madison County well water. Iron and manganese also exceed EPA limits. This is a high-priority situation that needs your attention right away. Testing your well is not optional.

Arsenic is odorless and tasteless, so you cannot see it or smell it. Long-term exposure to arsenic in drinking water increases the risk of cancer and organ damage. Iron causes orange-brown staining on sinks, toilets, and laundry. The extreme hardness and high sulfate levels will clog pipes and damage water heaters.

Contact a state-certified lab for a complete test right away. A basic health screen costs fifty to one hundred dollars. A comprehensive mineral and metals panel costs two hundred to four hundred dollars. Ask the lab to test specifically for arsenic, iron, and manganese. A whole-house treatment system with a carbon filter and iron removal can address multiple contaminants at once.