Well Water in Montmorency County: What to Test and Why

Groundwater in Montmorency County contains iron, arsenic, and chloride. Iron exceeds EPA health standards, which is a concern that well owners should monitor.

These contaminants come from the rock layers beneath the county. Iron and arsenic dissolve naturally as groundwater sits in contact with minerals locked inside the stone. Chloride enters partly from road salt that washes down into the ground during winter.

Groundwater in this county is very hard, driven by elevated calcium and magnesium from the limestone and dolomite bedrock. The slow movement of water through these rock layers allows minerals to dissolve and concentrate. Very hard water is common across wells in Montmorency County.

Iron exceeds EPA health standards in wells throughout Montmorency County. Long-term exposure to elevated iron can cause organ damage and affect how your body processes other nutrients. Iron itself is not a poison, but consistent exposure over years creates health concerns. Arsenic and chloride are also present in some county wells at lower levels.

Wells in this county commonly leave orange or reddish-brown stains on sinks, toilets, and laundry. You may notice a metallic taste or odor in your water. Iron buildup can clog pipes and damage water heaters over time. The very hard water here also leaves white crusty scale on faucets and fixtures, and can shorten the lifespan of dishwashers and water heaters.

We recommend testing your well water, 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 well so it can be properly treated. A basic health screen for bacteria and nitrate runs around $50-100, while a comprehensive metals and minerals panel costs $200-400. Iron filtration systems or water softeners can address these concerns.