PFAS (Forever Chemicals) in Missouri Well Water

EPA Data 2025 · Risk Level: Moderate

Avg Level

2.303 ppt

EPA Limit

4 ppt

% Above Limit

8.8%

Risk Level

moderate

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

Water Quality Details

Contaminant	PFAS (Forever Chemicals)
Category	chemical
Average Level	2.303 ppt
Maximum Level	10.557 ppt
EPA Limit (MCL)	4 ppt
% Wells Above Limit	8.8%
Affected Wells	36,960
Testing Cost	$143
Treatment Cost	$1,993
vs National Avg	+0.285 ppt (+14.1%)

Missouri Well Water Overview

Well Users

420,000

% on Well Water

14.5%

Quality Score

65/100

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 Missouri well water?

In Missouri, pfas (forever chemicals) levels average 2.303 ppt, with a maximum recorded level of 10.557 ppt. The EPA limit is 4 ppt. Currently 8.8% of tested wells exceed this limit, affecting approximately 36,960 wells.

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

Testing for pfas (forever chemicals) in Missouri typically costs around $143. If treatment is needed, water treatment systems for pfas (forever chemicals) cost approximately $1,993.

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

The risk level for pfas (forever chemicals) in Missouri is rated as moderate. The state average of 2.303 ppt is 14.1% above the national average of 2.018 ppt.

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