Groundwater in Red Lake County contains iron, arsenic, and sulfate at levels high enough to exceed EPA health standards. These contaminants are present at concentrations that warrant attention from well owners.
The rock formations beneath Red Lake County naturally contain these elements. Iron and arsenic occur in the lower rock layers, and sulfate forms as water moves through these same deep aquifers over long periods. This is a natural feature of the groundwater system here, not caused by nearby activities.
Groundwater in this county is very hard, driven primarily by high levels of calcium and magnesium dissolved from the rock below. The deep aquifers that supply wells here pass through rock rich in these minerals, and water picks them up as it flows through. Most wells in Red Lake County show this same very hard character.
Wells in Red Lake County commonly have arsenic, iron, and sulfate at levels above EPA health standards. Arsenic exposure over time can increase the risk of cancer and harm the kidneys and nervous system. Iron and sulfate at elevated levels can also cause health concerns with long-term exposure. Testing your well is the only way to know if these contaminants are in your water at amounts that need treatment.
The very hard water in county wells leaves scale buildup on pipes, faucets, and shower heads that is difficult to clean. Hard water makes soap less effective, so you may notice stiff laundry and dull skin and hair after washing. The mineral deposits can shorten the lifespan of water heaters, dishwashers, and other appliances. You might also notice a slightly salty or mineral taste in the water.
We recommend a comprehensive water test since multiple contaminants exceed health standards in this county. Every well is different, and your well could have higher or lower levels than what is common here. Testing is the only way to know exactly what is in your water so you can treat it properly. A comprehensive panel typically costs two hundred to four hundred dollars and can identify which contaminants need removal through filtration or other treatment systems.
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 | 23 | 52% | Moderate | High | |
| Arsenic | 4 | 25% | Low | High ⓘ | |
| Sulfate | 44 | 9% | Moderate | Moderate | |
| PFOA | 1 | 0% | Low | Safe ⓘ | |
| Chloride | 42 | 0% | Moderate | Low | |
| Fluoride | 13 | 0% | Low | Low | |
| Manganese | 3 | 0% | Low | Low ⓘ | |
| Lead | 3 | 0% | Low | Low ⓘ | |
| Uranium | 1 | 0% | Low | Low ⓘ | |
| Radon | 1 | 0% | Low | Low ⓘ | |
| Nitrite | 3 | 0% | Low | Low ⓘ | |
| pH | 10 | — | — | Low | Low |
| Sodium | 25 | — | — | Moderate | Low |
| Nitrate | 1 | 0% | Low | Safe ⓘ | |
| E. coli | 1 | 0% | Low | Safe ⓘ | |
| Hardness | 8 | — | — | Low | Low ⓘ |
| Fecal Coliform | 1 | 0% | Low | Safe ⓘ |
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.
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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