Well Water in Pulaski County: What to Test and Why

Low Risk
Informational — Low Risk Detected 16914 samples analyzed

Why This Happens Here

Groundwater in Pulaski County contains manganese, sulfate, and arsenic. Manganese and sulfate exceed EPA health standards in some wells, so testing your water is important.

Manganese and arsenic come from the limestone and other rock layers underground in this region. Water moving through these rocks naturally picks up manganese over time. Sulfate also occurs naturally in the rock formation. These contaminants are not from pollution but from the bedrock itself.

Groundwater in this county is soft with moderate iron levels. The carbonate rock below releases iron and other minerals as water flows through it. Iron is moderately present in wells across the county, while hardness stays low due to the local rock composition.

What This Means for You

Wells in Pulaski County sometimes have manganese and sulfate at levels above EPA health standards. Manganese at high levels can affect the brain and nervous system, especially in children. Sulfate exposure at elevated levels can cause digestive issues and may be a concern for infants.

The good news is that wells in this county generally have soft water and low sodium, so you probably won't see much staining, scale buildup, or salty taste. Your appliances should last a normal lifespan. The mineral content here is modest and shouldn't create many quality-of-life problems for most households.

We recommend testing your well water to find out exactly what is in it, since every well is different and yours could have higher or lower levels than what is common in the county. A basic screening for bacteria and nitrate costs around fifty to one hundred dollars, while a comprehensive panel that checks metals and minerals runs two hundred to four hundred dollars. Testing is the only way to know what needs treatment, and options like activated carbon filters or ion exchange can address many concerns.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Manganese 29 3% 79% · 17% · 3% Moderate Moderate
Elevated concentration, not % above limit
Sulfate 39 3% 95% · 3% · 3% Moderate Low
HFPO-DA (GenX) ⓘ municipal 11 0% 100% · 0% · 0% Low Safe
PFOS ⓘ municipal 11 0% 100% · 0% · 0% Low Safe
PFNA ⓘ municipal 11 0% 100% · 0% · 0% Low Safe
PFHxS ⓘ municipal 11 0% 100% · 0% · 0% Low Safe
PFOA ⓘ municipal 11 0% 100% · 0% · 0% Low Safe
Iron 12 0% 92% · 8% · 0% Low Low
Chloride 38 0% 100% · 0% · 0% Moderate Low
Fluoride 2 0% 100% · 0% · 0% Low Low
Lead 13 0% 100% · 0% · 0% Low Low
Arsenic 17 0% 100% · 0% · 0% Moderate Low
PFBS ⓘ municipal 11 100% · 0% · 0% Low Safe
pH 12 Low Low
Sodium 35 Moderate Low
Nitrate 1 0% 100% · 0% · 0% Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Hardness 47 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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