Well Water in Henry County: What to Test and Why

Moderate Risk
Testing Recommended 20676 samples analyzed
Top Concerns in This County
Iron Manganese

Why This Happens Here

Your well water comes from mixed rock layers beneath the surface. This rock holds water in cracks and spaces. It is not limestone and not gravel—it is a blend of different stone types.

Iron, manganese, and chloride all come from the rock itself and from road salt. When groundwater sits in contact with these rock layers for a long time, minerals dissolve into the water. Road salt spreads across highways and soaks down through the soil. The chloride stays in the water and adds up.

Your water is extremely hard. Hardness comes from calcium and magnesium in the rock. At these levels, white crusty buildup will coat your pipes and water heater. Iron stains sinks and laundry orange or rust-brown. You will need a water softener and an iron filter to manage these problems.

What This Means for You

Your Henry County well water has iron, manganese, and chloride at levels that exceed EPA health standards. Sulfate is also elevated. This is a moderate concern that needs attention, but it is not an emergency.

Long-term exposure to elevated manganese can affect brain development, especially in children. Iron will stain your sinks, tubs, and laundry orange or brown. The very high sodium and sulfate levels will make your water taste salty or bitter. Your water is also extremely hard, which means thick white scale will build up on pipes, fixtures, and inside your water heater.

Get your well tested by a state-certified lab to confirm these results. A basic health screen covering bacteria and nitrate runs $50–100, and a comprehensive mineral and metals panel runs $200–400. A whole-house water treatment system combining softening, iron filtration, and salt removal can address these problems.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Iron 6 20% 67% · 17% · 17% Low High
Manganese 7 17% 43% · 43% · 14% Low High
Chloride 48 8% 79% · 12% · 8% Moderate Moderate
Sulfate 44 7% 84% · 9% · 7% Moderate Moderate
Fluoride 13 0% 69% · 31% · 0% Low Low
Lead 2 0% 100% · 0% · 0% Low Low
Nitrate 2 0% 100% · 0% · 0% Low Low
Arsenic 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Hardness 20 Moderate Low
Nitrate 1 Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
pH 5 Low Low
Sodium 49 Moderate Low
Uranium 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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