Radon in Kentucky Well Water

EPA Data 2025 · Risk Level: High

Avg Level

126.502 pCi/L

EPA Limit

300 pCi/L

% Above Limit

17.2%

Risk Level

high

Live DataLast updated: April 4, 2026·Source: EPA SDWIS & USGS

Water Quality Details

Contaminant	Radon
Category	radiological
Average Level	126.502 pCi/L
Maximum Level	507.938 pCi/L
EPA Limit (MCL)	300 pCi/L
% Wells Above Limit	17.2%
Affected Wells	65,360
Testing Cost	$31
Treatment Cost	$2,101
vs National Avg	-11.540 pCi/L (-8.4%)

Kentucky Well Water Overview

Well Users

380,000

% on Well Water

16.5%

Quality Score

63/100

Highest Risk States for Radon

#1Kentucky17.2% above limit #2Arkansas16.3% above limit #3Louisiana15.6% above limit #4South Dakota14.4% above limit #5Georgia14.3% above limit

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EPA SDWIS & USGS

📊

WellWaterPeek Research TeamData Specialists

Our team analyzes data from EPA SDWIS & USGS to deliver accurate, up-to-date information. All data is verified and cross-referenced with official sources.

✓ EPA SDWIS & USGS✓ Updated 2025

Frequently Asked Questions

Is radon a problem in Kentucky well water?

In Kentucky, radon levels average 126.502 pCi/L, with a maximum recorded level of 507.938 pCi/L. The EPA limit is 300 pCi/L. Currently 17.2% of tested wells exceed this limit, affecting approximately 65,360 wells.

How much does it cost to test for radon in Kentucky?

Testing for radon in Kentucky typically costs around $31. If treatment is needed, water treatment systems for radon cost approximately $2,101.

What is the risk level of radon in Kentucky well water?

The risk level for radon in Kentucky is rated as high. The state average of 126.502 pCi/L is 8.4% below the national average of 138.042 pCi/L.

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