Groundwater in Kenosha County contains iron, chloride, and sulfate. Several of these contaminants exceed EPA health standards, with chloride, fluoride, iron, lead, and sulfate all present at levels of concern.
Iron, chloride, and sulfate dissolve naturally from the rock layers that lie beneath the county. As groundwater moves slowly through these formations, it picks up minerals and salts. Chloride can also enter groundwater from road salt applied to roads during winter.
Groundwater in Kenosha County is very hard, driven by elevated calcium and magnesium from the limestone and dolomite rock below. Iron is also present at high levels in the water. These characteristics are widespread across wells throughout the county, with most wells showing similar mineral profiles.
Wells in Kenosha County commonly have chloride, fluoride, lead, and sulfate at levels that exceed EPA health standards, along with elevated iron. Lead exposure over time can harm brain development in children and raise blood pressure in adults. Fluoride at high levels can affect bone health. Chloride and sulfate at elevated concentrations can pose health concerns with long-term exposure. Iron itself is not a direct health risk, but lead contamination is serious and requires attention.
The water in this county is extremely hard, which means scale will build up quickly inside pipes, water heaters, and dishwashers. Hard water this severe can shorten the lifespan of appliances by years. You may see white or crusty buildup on faucets and showerheads. The elevated iron can cause rust-colored or orange staining on sinks, toilets, and laundry. You might notice a metallic taste or unpleasant odor in the water.
We recommend testing your well with a comprehensive metals and minerals panel, since multiple contaminants exceed health standards in county wells. Every well is different, and your well may 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. Treatment options include systems designed to remove lead and other metals, along with water softening for hardness.
Not sure if your well is affected? Get certified results in 5–7 days.
Test Your Well Water with Tap Score →| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Iron | 54 | 54% | Moderate | High | |
| Sulfate | 50 | 18% | Moderate | High | |
| Manganese | 46 | 9% | Moderate | Moderate | |
| Fluoride | 43 | 2% | Moderate | Low | |
| Chloride | 52 | 2% | Moderate | Low | |
| Nitrate | 40 | 0% | Moderate | Low | |
| Arsenic | 17 | 0% | Moderate | Low | |
| HFPO-DA (GenX) ⓘ municipal | 13 | 0% | Low | Safe | |
| Lead | 17 | 0% | Moderate | Low | |
| Nitrite | 31 | 0% | Moderate | Low | |
| PFHxS ⓘ municipal | 13 | 0% | Low | Low | |
| PFNA ⓘ municipal | 13 | 0% | Low | Low | |
| PFOA ⓘ municipal | 13 | 0% | Low | Low | |
| PFOS ⓘ municipal | 13 | 0% | Low | Safe | |
| Radon | 3 | 0% | Low | Low ⓘ | |
| Uranium | 14 | 0% | Low | Low | |
| Hardness | 55 | — | Moderate | Low | |
| PFBS ⓘ municipal | 13 | — | Low | Low | |
| pH | 61 | — | Moderate | Low | |
| Sodium | 41 | — | Moderate | Low |
MCL = Maximum Contaminant Level (EPA limit for public water; used as benchmark for private wells). Distribution shows % of sampled wells in each concentration band. Methodology.
* Microbial contaminants (E. coli, coliform) reflect only samples from the last 10 years.
Data shows potential risk — a certified test confirms whether your water is affected.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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