Well Water in Madison County: What to Test and Why

High Risk
Testing Strongly Recommended 254 well tests on record
Top Concerns in This County
Iron Manganese

Why This Happens Here

Contaminants detected in Madison County groundwater are none, which means contaminant levels here are low. Well owners in this county do not need to worry about elevated harmful substances in their water supplies.

The Floridan aquifer system that supplies water to Madison County sits deep underground and is naturally protected by layers of rock above it. This depth and protection keep surface sources of pollution from reaching the water below, resulting in the clean groundwater found throughout the county.

The mineral character of groundwater in Madison County is not notably elevated in iron, hardness, or sulfur based on available data. The Floridan aquifer system draws from diverse rock types that do not concentrate minerals at high levels in most wells. Water quality remains fairly consistent across the county's wells.

What This Means for You

The good news is that testing data from Madison County wells shows no contaminants exceeding EPA health standards. This means the county's groundwater is performing well overall for drinking water quality. However, every well is unique, and your specific well could have issues that aren't reflected in county-wide patterns.

Without complete mineral data available for your area, we cannot describe specific quality-of-life concerns like staining or scaling that you might encounter. Your well water could have high iron, hardness, or other minerals that affect taste, odor, or appliance lifespan. Only testing your well will reveal what you're actually dealing with.

We recommend you have your well tested to know exactly what's in your water and whether any treatment is needed. A basic screening test for bacteria and nitrate costs fifty to one hundred dollars and gives you important baseline information. If you discover mineral concerns, water softeners or filters can address most common issues.

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 136 60%
High High
Manganese 135 21%
High High
Lead 133 1%
High Low
HFPO-DA (GenX) ⓘ municipal 6 0%
Low Safe
Nitrite 84 0%
Moderate Low
Radon 4 0%
Low Low
Uranium 5 0%
Low Low
Nitrate 84 0%
Moderate Low
Sulfate 241 0%
High Low
PFHxS ⓘ municipal 6 0%
Low Safe
PFOS ⓘ municipal 6 0%
Low Safe
Arsenic 132 0%
High Low
Chloride 241 0%
High Low
PFNA ⓘ municipal 6 0%
Low Safe
PFOA ⓘ municipal 6 0%
Low Safe
Fluoride 241 0%
High Low
pH 242
High Low
Sodium 238
High Low
Hardness 10
Low Low
Total Coliform 58* 0%
Moderate Low
PFBS ⓘ municipal 6
Low Safe
E. coli 24* 0%
Moderate Low
Fecal Coliform 34* 0%
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.
* Microbial contaminants (E. coli, coliform) reflect only samples from the last 10 years.

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

Order a Tap Score Test →

Population Health Context

Population-level CDC data. Not individual risk prediction.

10.3%
Heart Disease Rate
(state avg: 7.7%)

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