Well Water in Giles County: What to Test and Why

Moderate Risk
Testing Recommended 264 well tests on record

Why This Happens Here

Groundwater in Giles County contains manganese, radon, and arsenic. Manganese and radon reach levels that exceed EPA health standards in some wells, so well owners should test their water and consider treatment if needed.

These metals and radon come from the rock itself. The Mississippian rock layer beneath Giles County naturally contains these elements, and as water moves through the rock over time, it dissolves small amounts of them. This is not caused by pollution or farming but by the geology under your feet.

Groundwater in this county is moderately hard, driven by moderate iron and moderate hardness minerals from the rock. The Mississippian rock contains iron that leaches into water as it passes through. Most wells in Giles County show these mineral levels.

What This Means for You

Wells in Giles County commonly have manganese and radon at levels that exceed EPA health standards. Manganese can affect the brain and nervous system, especially in children and babies. Radon is a radioactive gas that increases the risk of lung cancer when breathed in over time. These are serious health concerns that deserve attention.

The water in county wells tends to be moderately hard, which can leave stains on sinks, showers, and laundry. You may notice white or reddish buildup on faucets and fixtures. Hard water can also reduce how well soap cleans your clothes and skin. Over time, this hardness can shorten the life of water heaters and dishwashers.

We recommend testing your well to find out what is actually in your water, since every well is different and yours could have higher or lower levels than the county average. A comprehensive panel that checks for metals and minerals costs between two hundred and four hundred dollars. Testing is the only way to know what treatment your well needs, whether that is a whole-house filter, a softener, or an aeration system.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Lead 7 0%
Low Safe
Iron 7 0%
Low Safe
Fluoride 9 0%
Low Low
Arsenic 7 0%
Low Low
Chloride 9 0%
Low Low
HFPO-DA (GenX) ⓘ municipal 7 0%
Low Safe
Manganese 7 0%
Low Safe
PFHxS ⓘ municipal 7 0%
Low Safe
PFNA ⓘ municipal 7 0%
Low Safe
PFOA ⓘ municipal 7 0%
Low Safe
PFOS ⓘ municipal 7 0%
Low Safe
Radon 7 0%
Low Low
Sulfate 9 0%
Low Low
Uranium 7 0%
Low Low
Arsenic 7 0%
Low Low
Chloride 9 0%
Low Low
Fluoride 9 0%
Low Low
HFPO-DA (GenX) ⓘ municipal 7 0%
Low Safe
Iron 7 0%
Low Safe
Lead 7 0%
Low Safe
Manganese 7 0%
Low Safe
PFHxS ⓘ municipal 7 0%
Low Safe
PFNA ⓘ municipal 7 0%
Low Safe
PFOA ⓘ municipal 7 0%
Low Safe
PFOS ⓘ municipal 7 0%
Low Safe
Radon 7 0%
Low Low
Sulfate 9 0%
Low Low
Uranium 7 0%
Low Low
Hardness 7
Low Low
PFBS ⓘ municipal 7
Low Safe
pH 7
Low Low
Sodium 7
Low 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.

8.4%
Cancer Prevalence
(state avg: 6.7%)

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