Well Water in Manitowoc County: What to Test and Why

Iron, sulfate, and chloride are present in groundwater throughout Manitowoc County. These contaminants exceed EPA health standards and warrant attention from well owners.

These metals and salts come from the bedrock beneath the county. Iron dissolves naturally when groundwater sits in contact with rock layers underground. Sulfate and chloride also occur naturally in the stone, and road salt applied during winter seeps down to recharge the water supply.

Groundwater in this county is notably high in iron. Iron concentrates as water moves slowly through the local rock layers and collects in the aquifer. This elevated iron is common across wells in the county.

Wells in Manitowoc County commonly contain chloride, iron, and sulfate at levels that exceed EPA health standards. Chloride at elevated levels can affect blood pressure and increase health risks for people with certain heart conditions. Iron above the health standard can harm your organs over time with long-term exposure. Sulfate can cause digestive problems, especially in infants and people with certain sensitivities.

Hard water is very common in county wells and leaves white, crusty scale on faucets, showerheads, and inside pipes. Iron causes orange-brown staining on sinks, toilets, and laundry. The extreme hardness can shorten the lifespan of water heaters and dishwashers. You may also notice a metallic taste in your water.

We recommend testing your well water because 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 well so it can be properly treated. A comprehensive metals and minerals panel typically costs $200-400. Iron filters or water softeners can help address these concerns.