Groundwater in Menominee County contains manganese, radon, iron, and several other contaminants that exceed EPA health standards, including chloride, sulfate, arsenic, fluoride, and lead. These levels are serious enough to warrant immediate attention and testing of your private well.
The rock underneath this county naturally contains metals and minerals that dissolve into groundwater over time. Radon seeps from the rock itself as it breaks down underground. Chloride and sulfate come from both the rock composition and road salt that filters down through soil. Arsenic, lead, manganese, and iron are all released from the bedrock as water passes through it.
Groundwater in this county is moderately hard, driven by iron and moderate levels of manganese and hardness minerals from the surrounding rock. The local geology dissolves these metals readily into the water as it filters down through the bedrock. Iron and manganese appear in wells across the county, making these characteristics common in this area.
Wells in Menominee County commonly contain arsenic, chloride, sulfate, lead, radon, and fluoride at levels that exceed EPA health standards. Arsenic and lead are toxic metals that can harm organs and development, especially in children and pregnant people. Radon is a radioactive gas that increases lung cancer risk when breathed in over time. Fluoride at high levels can damage tooth enamel and bones.
Your well water is moderately hard, which means white crusty scale will build up on faucets, shower heads, and inside pipes and appliances. Iron in the water stains sinks, toilets, and laundry reddish-brown and can give water a metallic taste. These mineral deposits can shorten the lifespan of water heaters and dishwashers.
Every well in this county is different--your water could have higher or lower contamination than what is common here. Testing is the only way to know exactly what is in your well and what treatment you need. We recommend a comprehensive panel that tests for metals, minerals, bacteria, and radon, which typically costs $200 to $400. Depending on your results, treatment might include activated carbon filters, a water softener, radon mitigation, or other solutions.
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 | 91 | 29% | Moderate | High | |
| Manganese | 70 | 26% | Moderate | High | |
| Lead | 47 | 11% | Moderate | Moderate | |
| Arsenic | 36 | 3% | Moderate | Low | |
| Sulfate | 118 | 3% | High | Low | |
| Nitrate | 64 | 2% | Moderate | Low | |
| Chloride | 118 | 1% | High | Low | |
| Fluoride | 106 | 0% | High | Low | |
| Nitrite | 64 | 0% | Moderate | Low | |
| Radon | 15 | 0% | Moderate | Low ⓘ | |
| Uranium | 1 | 0% | Low | Low ⓘ | |
| Hardness | 86 | — | Moderate | Low | |
| pH | 142 | — | High | Low | |
| Sodium | 68 | — | 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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