Well Water in Henry County: What to Test and Why

Moderate Risk
Testing Recommended 4814 samples analyzed
Top Concerns in This County
Iron Manganese

Why This Happens Here

Groundwater in Henry County contains iron, manganese, chloride, and sulfate at levels that exceed EPA health standards. These contaminant levels are concerning and require attention from well owners.

These contaminants come from the rock layers beneath the county. Iron and manganese dissolve naturally when groundwater sits in contact with these rocks over long periods. Chloride enters the water from road salt spread on highways and farm roads. The slow movement of groundwater through the county's geology means water stays in contact with these minerals longer, dissolving more of them into the water.

Groundwater in Henry County is very hard, driven primarily by elevated calcium and magnesium from the bedrock. The slow-moving water picks up these minerals as it passes through the rock layers below. This very hard water with high iron and manganese is common across wells throughout the county.

What This Means for You

Chloride, iron, manganese, and sulfate all exceed EPA health standards in Henry County wells. Chloride and sulfate at elevated levels can stress your kidneys and digestive system over time. Manganese is especially concerning because long-term exposure can affect brain development and nervous system function. Iron and manganese are metals that dissolve naturally from bedrock and can build up in your body with continued exposure.

Wells in this county have extremely hard water, which means white crusty scale builds up inside pipes, water heaters, and dishwashers. This extreme hardness can shorten the lifespan of appliances like water heaters and dishwashers. Iron in county well water causes orange or rust-colored stains on sinks, toilets, and laundry. You may also notice a metallic or bitter taste from the mineral content.

We recommend testing your well because every well is different and yours may have higher or lower levels than what is common in the county. Testing is the only way to know what is actually in your water so it can be properly treated. A comprehensive metals and minerals panel typically costs $200-400 and will show exactly what you are dealing with. Treatment options like water softeners combined with iron filters can address both hardness and iron problems.

Not sure if your well is affected? Get certified results in 5–7 days.

Test Your Well Water with Tap Score →

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
Nitrate 2 0% 100% · 0% · 0% Low Low
HFPO-DA (GenX) ⓘ municipal 4 0% 100% · 0% · 0% Low Safe
PFNA ⓘ municipal 4 0% 100% · 0% · 0% Low Safe
PFOA ⓘ municipal 4 0% 100% · 0% · 0% Low Safe
PFHxS ⓘ municipal 4 0% 100% · 0% · 0% Low Safe
PFOS ⓘ municipal 4 0% 100% · 0% · 0% Low Safe
Fluoride 13 0% 69% · 31% · 0% Low Low
Lead 2 0% 100% · 0% · 0% Low Low
Nitrite 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
PFBS ⓘ municipal 4 100% · 0% · 0% Low Low
pH 5 Low Low
Sodium 49 Moderate Low
Uranium 1 0% 100% · 0% · 0% Low Safe
Arsenic 1 0% 100% · 0% · 0% Low Safe
Hardness 20 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.

Data shows potential risk — a certified test confirms whether your water is affected.

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