Well Water in Chautauqua County: What to Test and Why

High Risk
Testing Strongly Recommended 18284 samples analyzed
Top Concerns in This County
Radon Iron

Why This Happens Here

Groundwater in Chautauqua County contains radon, iron, chloride, and lead. Several of these contaminants exceed EPA health standards and warrant your attention.

These contaminants come from the local rock and human activities. Radon seeps naturally from the bedrock into groundwater. Iron dissolves from minerals in the rock layers beneath the county. Chloride enters wells from road salt applied to local roads during winter. Lead can enter water where pipes or fixtures corrode, especially in older homes.

Groundwater in this county is moderately hard, driven mainly by iron and calcium dissolved from the rock. The fractured non-carbonate rock here naturally releases these minerals into water as it moves through cracks and spaces. Most wells in the county show these moderately hard characteristics with elevated iron.

What This Means for You

Chautauqua County wells show four contaminants that exceed EPA health standards. Lead damages children's developing brains and kidneys even at low levels. Radon is a radioactive gas that increases lung cancer risk when breathed in over time. Chloride at high levels can harm people with heart or kidney problems. Iron itself does not pose direct health risks but indicates the water chemistry that allows these other contaminants to dissolve into your well.

Wells in this county tend toward moderate hardness, which means you may see some crusty buildup on faucets and inside pipes over time. Iron causes orange-brown staining on sinks, toilets, and laundry. The moderately hard water can also shorten the lifespan of water heaters and dishwashers. Some people notice a metallic or earthy taste, though these are quality-of-life issues rather than health concerns.

We recommend getting your well tested with a comprehensive metals and minerals panel, since multiple health standards are exceeded in county wells. Your well may have much higher or lower levels than what is common here--testing is the only way to know what is actually in your water. A comprehensive panel typically costs between $200 and $400 and will tell you exactly what needs treatment. Water softeners, radon mitigation systems, and specialized filters can address these problems once you know your specific situation.

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
Radon 24 50% 38% · 12% · 50% Moderate High
Iron 12 27% 42% · 33% · 25% Low High
Chloride 81 9% 84% · 7% · 9% Moderate Moderate
Lead 66 6% 88% · 6% · 6% Moderate Moderate
Sulfate 28 0% 96% · 4% · 0% Moderate Low
Uranium 17 0% 100% · 0% · 0% Moderate Low
PFOA ⓘ municipal 19 0% 100% · 0% · 0% Moderate Safe
Arsenic 4 0% 100% · 0% · 0% Low Low
PFOS ⓘ municipal 19 0% 100% · 0% · 0% Moderate Safe
HFPO-DA (GenX) ⓘ municipal 19 0% 100% · 0% · 0% Moderate Safe
PFNA ⓘ municipal 19 0% 100% · 0% · 0% Moderate Safe
PFHxS ⓘ municipal 19 0% 100% · 0% · 0% Moderate Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
Manganese 1 0% 100% · 0% · 0% Low Safe
PFBS ⓘ municipal 19 100% · 0% · 0% Moderate Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Hardness 21 Moderate Low
Fecal Coliform 1 0% 100% · 0% · 0% Low Safe
Total Coliform 1 0% 100% · 0% · 0% Low Safe
pH 12 Low Low
Sodium 63 Moderate Low
Fluoride 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.

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.

8.2%
Heart Disease Rate
(state avg: 6.4%)
6.0%
Cancer Prevalence
(state avg: 6.7%)

Water News for Chautauqua County

Loading recent water news…

Local Resources

Nearby Counties