Well Water in Mecosta County: What to Test and Why

Groundwater in Mecosta County contains iron and manganese at levels that exceed EPA health standards. These elevated metal concentrations are a serious concern for well owners in this area.

Iron and manganese dissolve naturally from the rock layers beneath the county as groundwater moves slowly through the ground. The other rock type aquifer here contains minerals that release these metals into the water over time.

Groundwater in this county is notably high in iron, which is the primary mineral driving its character. Iron concentrates in the water because of the composition of the rock below and the low-oxygen conditions deep underground where water sits. These characteristics are common across wells throughout Mecosta County.

Wells in Mecosta County commonly contain iron and manganese at levels that exceed EPA health standards. Iron can cause problems with your brain and nervous system over time, especially in children. Manganese exposure over many years can also harm your brain development and how your nervous system works. These metals build up in your body slowly, so the health effects may not show up right away.

You will probably notice orange or brown staining on your sinks, toilets, and laundry from the iron in county wells. Iron can also clog pipes and damage water heaters over time. You may see black or brown stains from manganese as well. The water may taste metallic or have an unpleasant flavor from these minerals.

We recommend testing your well water through a state-certified lab to find out exactly what is in it. Every well is different, and your well 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 well so it can be properly treated. A comprehensive metals and minerals panel typically costs $200-400, and iron removal systems or manganese filters can help reduce these contaminants.