PFAS (Forever Chemicals) in South Carolina Well Water

EPA Data 2025 · Risk Level: Moderate

Avg Level

2.45 ppt

EPA Limit

4 ppt

% Above Limit

13.9%

Risk Level

moderate

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

Water Quality Details

Contaminant	PFAS (Forever Chemicals)
Category	chemical
Average Level	2.45 ppt
Maximum Level	5.527 ppt
EPA Limit (MCL)	4 ppt
% Wells Above Limit	13.9%
Affected Wells	66,720
Testing Cost	$84
Treatment Cost	$1,331
vs National Avg	+0.432 ppt (+21.4%)

South Carolina Well Water Overview

Well Users

480,000

% on Well Water

17.5%

Quality Score

66/100

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 South Carolina well water?

In South Carolina, pfas (forever chemicals) levels average 2.45 ppt, with a maximum recorded level of 5.527 ppt. The EPA limit is 4 ppt. Currently 13.9% of tested wells exceed this limit, affecting approximately 66,720 wells.

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

Testing for pfas (forever chemicals) in South Carolina typically costs around $84. If treatment is needed, water treatment systems for pfas (forever chemicals) cost approximately $1,331.

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

The risk level for pfas (forever chemicals) in South Carolina is rated as moderate. The state average of 2.45 ppt is 21.4% above the national average of 2.018 ppt.

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