PFAS (Forever Chemicals) in New Hampshire Well Water

EPA Data 2025 · Risk Level: Low

Avg Level

2.67 ppt

EPA Limit

4 ppt

% Above Limit

5.7%

Risk Level

low

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

Water Quality Details

Contaminant	PFAS (Forever Chemicals)
Category	chemical
Average Level	2.67 ppt
Maximum Level	9.197 ppt
EPA Limit (MCL)	4 ppt
% Wells Above Limit	5.7%
Affected Wells	19,380
Testing Cost	$90
Treatment Cost	$4,009
vs National Avg	+0.652 ppt (+32.3%)

New Hampshire Well Water Overview

Well Users

340,000

% on Well Water

39.8%

Quality Score

75/100

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 New Hampshire well water?

In New Hampshire, pfas (forever chemicals) levels average 2.67 ppt, with a maximum recorded level of 9.197 ppt. The EPA limit is 4 ppt. Currently 5.7% of tested wells exceed this limit, affecting approximately 19,380 wells.

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

Testing for pfas (forever chemicals) in New Hampshire typically costs around $90. If treatment is needed, water treatment systems for pfas (forever chemicals) cost approximately $4,009.

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

The risk level for pfas (forever chemicals) in New Hampshire is rated as low. The state average of 2.67 ppt is 32.3% above the national average of 2.018 ppt.

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