PFAS (Forever Chemicals) in Connecticut Well Water

EPA Data 2025 · Risk Level: Low

Avg Level

1.565 ppt

EPA Limit

4 ppt

% Above Limit

7.0%

Risk Level

low

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

Water Quality Details

Contaminant	PFAS (Forever Chemicals)
Category	chemical
Average Level	1.565 ppt
Maximum Level	6.073 ppt
EPA Limit (MCL)	4 ppt
% Wells Above Limit	7.0%
Affected Wells	40,600
Testing Cost	$84
Treatment Cost	$4,748
vs National Avg	-0.453 ppt (-22.5%)

Connecticut Well Water Overview

Well Users

580,000

% on Well Water

23.4%

Quality Score

78/100

Highest Risk States for PFAS (Forever Chemicals)

#1Oklahoma18.4% above limit #2Louisiana17.1% above limit #3New Mexico14.6% above limit #4West Virginia14.3% above limit #5South Dakota14.1% 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 pfas (forever chemicals) a problem in Connecticut well water?

In Connecticut, pfas (forever chemicals) levels average 1.565 ppt, with a maximum recorded level of 6.073 ppt. The EPA limit is 4 ppt. Currently 7.0% of tested wells exceed this limit, affecting approximately 40,600 wells.

How much does it cost to test for pfas (forever chemicals) in Connecticut?

Testing for pfas (forever chemicals) in Connecticut typically costs around $84. If treatment is needed, water treatment systems for pfas (forever chemicals) cost approximately $4,748.

What is the risk level of pfas (forever chemicals) in Connecticut well water?

The risk level for pfas (forever chemicals) in Connecticut is rated as low. The state average of 1.565 ppt is 22.5% below the national average of 2.018 ppt.

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