Well Water in Crawford County: What to Test and Why

Groundwater in Crawford County contains arsenic, manganese, iron, chloride, lead, nitrite, and sulfate--several at levels exceeding EPA health standards. These contaminant levels are high enough to require attention and testing.

The rock layers beneath Crawford County naturally contain iron, manganese, and sulfate. As groundwater moves slowly through cracks in the limestone and shale, it dissolves these metals and minerals over time. Chloride can come from road salt applied during winter or from deeper rock layers. Lead may enter from older well components or pipes.

Groundwater in Crawford County is very hard, with elevated calcium and magnesium from the limestone below, plus significant iron and moderate sulfate. The slow movement of water through these rock layers concentrates these minerals in the water. These characteristics are widespread across wells in the county.

Wells in Crawford County commonly contain arsenic, lead, and nitrite at levels that exceed EPA health standards. Arsenic exposure over time increases the risk of cancer and can harm organs like the kidneys and heart. Lead is especially dangerous for children and can damage brain development and learning. Nitrite can interfere with how blood carries oxygen through your body. The county also shows elevated manganese, which can affect the nervous system with long-term exposure.

The very hard water in this county leaves thick white crusty buildup on fixtures, pipes, and inside appliances like water heaters and dishwashers, which can shorten their lifespan. Iron stains sinks, toilets, and laundry orange-brown and can create an unpleasant metallic taste. High sulfate levels can give the water a bitter or rotten-egg smell. These mineral problems make soap less effective and create scale that builds up quickly.

We recommend testing your well with a comprehensive metals and minerals panel, since 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 water so it can be properly treated. A comprehensive panel typically runs $200-400. Treatment options like a water softener combined with an iron filter or reverse osmosis system can address multiple contaminants.