Your well water comes from other rocks buried deep underground. These rocks are a patchwork of different materials left behind after glaciers melted thousands of years ago. Water fills the cracks and spaces between these rock pieces, and that is where your well draws from.
Iron, arsenic, and sulfate get into your water because of the rock itself and slow-moving groundwater. Water sits in contact with these rocks for a long time, dissolving minerals and metals out of them. The low-oxygen conditions deep underground make these problems worse.
Your water is very hard and loaded with minerals. Iron will stain your sinks and tubs orange or brown. Sulfate gives the water a bitter taste, and sodium at these high levels means people on salt-restricted diets need to know what they are drinking.
Arsenic in Clinton County wells exceeds EPA health standards. This is a serious concern that demands immediate testing. Arsenic is a poison that builds up in your body over years, and you cannot taste, smell, or see it in your water.
Long-term exposure to arsenic increases your risk of cancer, heart disease, and skin problems. The very high iron, sodium, and sulfate levels will also stain your sinks and tubs orange, make your water taste bitter, and damage your pipes over time. These minerals create a hostile environment for plumbing and appliances.
Call a state-certified lab right away and request testing for arsenic, bacteria, and nitrate—a basic screen costs about $50–100. A comprehensive metals panel runs $200–400 and will catch other contaminants. An arsenic-removal system such as reverse osmosis can protect your family while you plan long-term solutions.
| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Iron | 14 | 85% | 7% · 14% · 79% | Low | High |
| Arsenic | 8 | 25% | 62% · 12% · 25% | Low | High |
| Sulfate | 61 | 10% | 80% · 10% · 10% | Moderate | Moderate |
| Chloride | 28 | 7% | 82% · 11% · 7% | Moderate | Moderate |
| Uranium | 2 | 0% | 100% · 0% · 0% | Low | Low |
| Lead | 1 | 0% | 100% · 0% · 0% | Low | Low |
| Fluoride | 5 | 0% | 100% · 0% · 0% | Low | Low |
| Nitrite | 9 | 0% | 100% · 0% · 0% | Low | Low |
| Sodium | 43 | — | — | Moderate | Low |
| Manganese | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| E. coli | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| Total Coliform | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| Hardness | 3 | — | — | Low | Low |
| pH | 5 | — | — | Low | Low |
| Nitrate | 1 | 0% | 100% · 0% · 0% | Low | Safe |
| Nitrate | 21 | — | — | 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.
Population-level CDC data. Not individual risk prediction.
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