Well Water in Medina County: What to Test and Why

High Risk
Testing Strongly Recommended 22590 samples analyzed
Top Concerns in This County
Iron Manganese Radon

Why This Happens Here

Medina County wells draw water from old sandstone and shale rock layers deep underground. These rocks sit in thick, stacked layers that hold water in their tiny spaces and cracks. The water moves slowly through these layers as it travels underground.

Iron, manganese, and chloride appear in this water because they dissolve naturally out of the rock as water sits in contact with it over time. The shale and sandstone contain these minerals, and groundwater picks them up as it flows through. Salt and sulfate also build up in the water this way.

Your water is extremely hard and loaded with minerals. The high iron will stain sinks and laundry orange-brown, and you will see thick white or crusty buildup on fixtures and in water heaters. The water also contains high sodium and sulfate, which can give it a bitter or salty taste and may affect people on salt-restricted diets.

What This Means for You

Chloride, iron, and manganese in Medina County wells exceed EPA health standards. This is a serious situation that needs your attention right away. Your water has reached levels where treatment is necessary to protect your family's health.

Long-term exposure to these metals can harm your brain, organs, and bones. Beyond health risks, your water will stain sinks and laundry orange-brown. You will see thick white scale build up on fixtures and inside pipes. The water may taste metallic or salty.

Get your well tested by a state-certified lab to confirm what you are dealing with. A comprehensive mineral and metals panel costs $200–400. A whole-house system combining sediment filtration and iron removal can address multiple contaminants at once.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Iron 77 71% 17% · 12% · 71% Moderate High
Manganese 17 62% 24% · 18% · 59% Moderate High
Chloride 21 5% 95% · 0% · 5% Moderate Moderate
Sulfate 44 4% 73% · 23% · 4% Moderate Moderate
Arsenic 2 0% 100% · 0% · 0% Low Low
Fluoride 15 0% 100% · 0% · 0% Moderate Low
Radon 2 0% 50% · 50% · 0% Low Moderate
Uranium 1 0% 100% · 0% · 0% Low Low
E. coli 1 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 Low Safe
Hardness 4 Low Low
Lead 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
pH 8 Low Low
Sodium 11 Low Low
Total Coliform 1 0% 100% · 0% · 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.

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