Well Water in Columbia County: What to Test and Why

Groundwater in Columbia County contains manganese, iron, and radon at levels that exceed EPA health standards. These contaminant concentrations are notable and worth attention.

Manganese and iron dissolve naturally from the limestone and carbonate rock beneath the county as water moves through cracks and pores underground. Radon enters groundwater from the natural radioactive decay of uranium in this same bedrock. All three come from the geology itself, not from land use or pollution sources.

Groundwater in this county is moderately hard, with calcium and magnesium from the limestone bedrock as the primary minerals driving this character. Water passing through carbonate rock dissolves these minerals slowly over time. Most wells across Columbia County show these moderate hardness levels and elevated iron and manganese together.

Wells in Columbia County commonly contain iron, manganese, and radon at levels above EPA health standards. Iron and manganese can harm your nervous system and organs over time with long-term exposure. Radon is a radioactive gas that increases the risk of lung cancer when you breathe it in over many years.

County well water is moderately hard, which means you might notice reddish-brown staining on fixtures, laundry, or dishes from iron. Your water could taste metallic or have an unpleasant flavor. Hard water can also build up scale inside pipes and on appliances, shortening the lifespan of water heaters and dishwashers.

We recommend testing your well with a comprehensive metals and radon panel, since every well in this county is different and yours could have higher or lower levels than what is common here. Testing is the only way to know what is actually in your water so it can be properly treated. A comprehensive panel typically costs $200-400. Depending on results, treatment options like iron filters and radon removal systems can address these concerns.