Well Water in Clinton County: What to Test and Why

High Risk
Testing Strongly Recommended 24517 samples analyzed
Top Concerns in This County
Iron Arsenic

Why This Happens Here

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.

What This Means for You

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 Detection Data

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 Health Context

Population-level CDC data. Not individual risk prediction.

7.8%
Cancer Prevalence
6.1%
Cancer Prevalence
2.4%
Kidney Disease Rate

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